From 2481d76615d5e15340ccfb0243fe8779766dfc6e Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 19 Aug 2008 21:56:35 -0700
Subject: sparc: Add mutex for set property calls.

On some platforms, the I2C controller is shared between the OS and
OBP.  OBP uses this I2C controller to access the EEPROM, and thus is
programmed when the kernel calls prom_setprop().

Wrap such calls with the new of_set_property_mutex.

Relevant I2C bus drivers can grab this mutex around top-level I2C
operations to provide the proper protection.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/prom.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/prom.c b/arch/sparc/kernel/prom.c
index cd4fb79aa3a..43e86240682 100644
--- a/arch/sparc/kernel/prom.c
+++ b/arch/sparc/kernel/prom.c
@@ -54,6 +54,9 @@ int of_getintprop_default(struct device_node *np, const char *name, int def)
 }
 EXPORT_SYMBOL(of_getintprop_default);
 
+DEFINE_MUTEX(of_set_property_mutex);
+EXPORT_SYMBOL(of_set_property_mutex);
+
 int of_set_property(struct device_node *dp, const char *name, void *val, int len)
 {
 	struct property **prevp;
@@ -77,7 +80,10 @@ int of_set_property(struct device_node *dp, const char *name, void *val, int len
 			void *old_val = prop->value;
 			int ret;
 
+			mutex_lock(&of_set_property_mutex);
 			ret = prom_setprop(dp->node, (char *) name, val, len);
+			mutex_unlock(&of_set_property_mutex);
+
 			err = -EINVAL;
 			if (ret >= 0) {
 				prop->value = new_val;
-- 
cgit v1.2.3


From 44266215e3c8209613cea014721015113b7cd2d9 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 20 Aug 2008 16:34:39 -0700
Subject: sparc: Implement irq_of_parse_and_map() and irq_dispose_mapping().

This allows more OF layer code to be shared between powerpc and
sparc.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/of_device.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/of_device.c b/arch/sparc/kernel/of_device.c
index cc4c235c4f5..56e9a718ef8 100644
--- a/arch/sparc/kernel/of_device.c
+++ b/arch/sparc/kernel/of_device.c
@@ -29,6 +29,17 @@ struct of_device *of_find_device_by_node(struct device_node *dp)
 }
 EXPORT_SYMBOL(of_find_device_by_node);
 
+int irq_of_parse_and_map(struct device_node *node, int index)
+{
+	struct of_device *op = of_find_device_by_node(node);
+
+	if (!op || index >= op->num_irqs)
+		return 0xffffffff;
+
+	return op->irqs[index];
+}
+EXPORT_SYMBOL(irq_of_parse_and_map);
+
 #ifdef CONFIG_PCI
 struct bus_type ebus_bus_type;
 EXPORT_SYMBOL(ebus_bus_type);
-- 
cgit v1.2.3


From 51e0f004a9ab9104acbe323c0b20e0279bf9be85 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Mon, 25 Aug 2008 16:44:58 -0700
Subject: sparc64: Fix irq_of_parse_and_map() and irq_dispose_mapping().

Stephen Rothwell noticed that I committed an earlier version
of the patch that didn't have two things fixed:

1) irq_of_parse_and_map() should return "unsigned int" not "int"
   and it should return zero for "no irq"

2) irq_dispose_mapping() should be an inline function, not a macro,
   for type checking

With feedback and suggestions from Anton Vorontsov.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/of_device.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/of_device.c b/arch/sparc/kernel/of_device.c
index 56e9a718ef8..aace71f7d6e 100644
--- a/arch/sparc/kernel/of_device.c
+++ b/arch/sparc/kernel/of_device.c
@@ -29,12 +29,12 @@ struct of_device *of_find_device_by_node(struct device_node *dp)
 }
 EXPORT_SYMBOL(of_find_device_by_node);
 
-int irq_of_parse_and_map(struct device_node *node, int index)
+unsigned int irq_of_parse_and_map(struct device_node *node, int index)
 {
 	struct of_device *op = of_find_device_by_node(node);
 
 	if (!op || index >= op->num_irqs)
-		return 0xffffffff;
+		return 0;
 
 	return op->irqs[index];
 }
-- 
cgit v1.2.3


From 902663f6ea4a2603bee0d88450aae2d653a46f5d Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 26 Aug 2008 22:25:03 -0700
Subject: sparc: Delete bare sbus char bpp driver, obsoleted by parport_sunbpp

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/ebus.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/ebus.c b/arch/sparc/kernel/ebus.c
index 97294232259..7e9397fc608 100644
--- a/arch/sparc/kernel/ebus.c
+++ b/arch/sparc/kernel/ebus.c
@@ -20,7 +20,6 @@
 #include <asm/io.h>
 #include <asm/oplib.h>
 #include <asm/prom.h>
-#include <asm/bpp.h>
 
 struct linux_ebus *ebus_chain = NULL;
 
-- 
cgit v1.2.3


From 334ae614772b1147435dce9be3911f9040dff0d9 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 17:01:57 -0700
Subject: sparc: Kill SBUS DVMA layer.

This thing was completely pointless.

Just find the OF device in the parent of drivers that want to program
this device, and map the DMA regs inside such drivers too.

This also moves the dummy claim_dma_lock() and release_dma_lock()
implementation to floppy_32.h, which makes it handle this issue
just like floppy_64.h does.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sparc_ksyms.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index b23cea5ca5d..8a392d3d89e 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -154,7 +154,6 @@ EXPORT_SYMBOL(BTFIXUP_CALL(pgprot_noncached));
 
 #ifdef CONFIG_SBUS
 EXPORT_SYMBOL(sbus_root);
-EXPORT_SYMBOL(dma_chain);
 EXPORT_SYMBOL(sbus_set_sbus64);
 EXPORT_SYMBOL(sbus_alloc_consistent);
 EXPORT_SYMBOL(sbus_free_consistent);
-- 
cgit v1.2.3


From e003934876e75f96f1445565d8c9084c07943253 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Mon, 25 Aug 2008 22:47:20 -0700
Subject: sparc32: Make IOMMU and IO-UNIT init work with device nodes.

And stick the iommu archdata pointer into the generic OF device tree
of_device struct as well.

We still have to pass the sbus_bus object down into the routines so
that the SBUS bus objects get the iommu cookies set properly.  After
drivers get converted to being pure OF drivers, that can go away.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/ioport.c | 17 ++++++-----------
 1 file changed, 6 insertions(+), 11 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 2a8a847764d..f6158c4a399 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -46,6 +46,8 @@
 #include <asm/page.h>
 #include <asm/pgalloc.h>
 #include <asm/dma.h>
+#include <asm/iommu.h>
+#include <asm/io-unit.h>
 
 #define mmu_inval_dma_area(p, l)	/* Anton pulled it out for 2.4.0-xx */
 
@@ -515,18 +517,11 @@ void __init sbus_setup_iommu(struct sbus_bus *sbus, struct device_node *dp)
 
 	if (sparc_cpu_model != sun4d &&
 	    parent != NULL &&
-	    !strcmp(parent->name, "iommu")) {
-		extern void iommu_init(int iommu_node, struct sbus_bus *sbus);
+	    !strcmp(parent->name, "iommu"))
+		iommu_init(parent, sbus);
 
-		iommu_init(parent->node, sbus);
-	}
-
-	if (sparc_cpu_model == sun4d) {
-		extern void iounit_init(int sbi_node, int iounit_node,
-					struct sbus_bus *sbus);
-
-		iounit_init(dp->node, parent->node, sbus);
-	}
+	if (sparc_cpu_model == sun4d)
+		iounit_init(sbus);
 #endif
 }
 
-- 
cgit v1.2.3


From 7a715f46012f3552294154978aed59cba9804928 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 18:37:58 -0700
Subject: sparc: Make SBUS DMA interfaces take struct device.

This is the first step in converting all the SBUS drivers
over to generic dma_*().

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/ioport.c      | 43 ++++++++++++++++++-----------------------
 arch/sparc/kernel/sparc_ksyms.c |  2 --
 2 files changed, 19 insertions(+), 26 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index f6158c4a399..aa73b3b71e8 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -300,11 +300,10 @@ void __init sbus_fill_device_irq(struct sbus_dev *sdev)
  * Allocate a chunk of memory suitable for DMA.
  * Typically devices use them for control blocks.
  * CPU may access them without any explicit flushing.
- *
- * XXX Some clever people know that sdev is not used and supply NULL. Watch.
  */
-void *sbus_alloc_consistent(struct sbus_dev *sdev, long len, u32 *dma_addrp)
+void *sbus_alloc_consistent(struct device *dev, long len, u32 *dma_addrp)
 {
+	struct of_device *op = to_of_device(dev);
 	unsigned long len_total = (len + PAGE_SIZE-1) & PAGE_MASK;
 	unsigned long va;
 	struct resource *res;
@@ -341,10 +340,7 @@ void *sbus_alloc_consistent(struct sbus_dev *sdev, long len, u32 *dma_addrp)
 	if (mmu_map_dma_area(dma_addrp, va, res->start, len_total) != 0)
 		goto err_noiommu;
 
-	/* Set the resource name, if known. */
-	if (sdev) {
-		res->name = sdev->prom_name;
-	}
+	res->name = op->node->name;
 
 	return (void *)(unsigned long)res->start;
 
@@ -358,7 +354,7 @@ err_nopages:
 	return NULL;
 }
 
-void sbus_free_consistent(struct sbus_dev *sdev, long n, void *p, u32 ba)
+void sbus_free_consistent(struct device *dev, long n, void *p, u32 ba)
 {
 	struct resource *res;
 	struct page *pgv;
@@ -396,8 +392,10 @@ void sbus_free_consistent(struct sbus_dev *sdev, long n, void *p, u32 ba)
  * CPU view of this memory may be inconsistent with
  * a device view and explicit flushing is necessary.
  */
-dma_addr_t sbus_map_single(struct sbus_dev *sdev, void *va, size_t len, int direction)
+dma_addr_t sbus_map_single(struct device *dev, void *va, size_t len, int direction)
 {
+	struct sbus_dev *sdev = to_sbus_device(dev);
+
 	/* XXX why are some lengths signed, others unsigned? */
 	if (len <= 0) {
 		return 0;
@@ -409,13 +407,16 @@ dma_addr_t sbus_map_single(struct sbus_dev *sdev, void *va, size_t len, int dire
 	return mmu_get_scsi_one(va, len, sdev->bus);
 }
 
-void sbus_unmap_single(struct sbus_dev *sdev, dma_addr_t ba, size_t n, int direction)
+void sbus_unmap_single(struct device *dev, dma_addr_t ba, size_t n, int direction)
 {
+	struct sbus_dev *sdev = to_sbus_device(dev);
 	mmu_release_scsi_one(ba, n, sdev->bus);
 }
 
-int sbus_map_sg(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direction)
+int sbus_map_sg(struct device *dev, struct scatterlist *sg, int n, int direction)
 {
+	struct sbus_dev *sdev = to_sbus_device(dev);
+
 	mmu_get_scsi_sgl(sg, n, sdev->bus);
 
 	/*
@@ -425,16 +426,19 @@ int sbus_map_sg(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direct
 	return n;
 }
 
-void sbus_unmap_sg(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direction)
+void sbus_unmap_sg(struct device *dev, struct scatterlist *sg, int n, int direction)
 {
+	struct sbus_dev *sdev = to_sbus_device(dev);
+
 	mmu_release_scsi_sgl(sg, n, sdev->bus);
 }
 
 /*
  */
-void sbus_dma_sync_single_for_cpu(struct sbus_dev *sdev, dma_addr_t ba, size_t size, int direction)
+void sbus_dma_sync_single_for_cpu(struct device *dev, dma_addr_t ba, size_t size, int direction)
 {
 #if 0
+	struct sbus_dev *sdev = to_sbus_device(dev);
 	unsigned long va;
 	struct resource *res;
 
@@ -452,9 +456,10 @@ void sbus_dma_sync_single_for_cpu(struct sbus_dev *sdev, dma_addr_t ba, size_t s
 #endif
 }
 
-void sbus_dma_sync_single_for_device(struct sbus_dev *sdev, dma_addr_t ba, size_t size, int direction)
+void sbus_dma_sync_single_for_device(struct device *dev, dma_addr_t ba, size_t size, int direction)
 {
 #if 0
+	struct sbus_dev *sdev = to_sbus_device(dev);
 	unsigned long va;
 	struct resource *res;
 
@@ -472,16 +477,6 @@ void sbus_dma_sync_single_for_device(struct sbus_dev *sdev, dma_addr_t ba, size_
 #endif
 }
 
-void sbus_dma_sync_sg_for_cpu(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direction)
-{
-	printk("sbus_dma_sync_sg_for_cpu: not implemented yet\n");
-}
-
-void sbus_dma_sync_sg_for_device(struct sbus_dev *sdev, struct scatterlist *sg, int n, int direction)
-{
-	printk("sbus_dma_sync_sg_for_device: not implemented yet\n");
-}
-
 /* Support code for sbus_init().  */
 /*
  * XXX This functions appears to be a distorted version of
diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index 8a392d3d89e..9d85a83586a 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -163,8 +163,6 @@ EXPORT_SYMBOL(sbus_map_sg);
 EXPORT_SYMBOL(sbus_unmap_sg);
 EXPORT_SYMBOL(sbus_dma_sync_single_for_cpu);
 EXPORT_SYMBOL(sbus_dma_sync_single_for_device);
-EXPORT_SYMBOL(sbus_dma_sync_sg_for_cpu);
-EXPORT_SYMBOL(sbus_dma_sync_sg_for_device);
 EXPORT_SYMBOL(sbus_iounmap);
 EXPORT_SYMBOL(sbus_ioremap);
 #endif
-- 
cgit v1.2.3


From 260489fa8a9735c76073ace95f03ffaf10cca884 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 26 Aug 2008 23:00:58 -0700
Subject: sparc32: Make mmu_{get,release}_*() take a struct device pointer.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/ioport.c | 17 ++++-------------
 1 file changed, 4 insertions(+), 13 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index aa73b3b71e8..11dccf94515 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -394,8 +394,6 @@ void sbus_free_consistent(struct device *dev, long n, void *p, u32 ba)
  */
 dma_addr_t sbus_map_single(struct device *dev, void *va, size_t len, int direction)
 {
-	struct sbus_dev *sdev = to_sbus_device(dev);
-
 	/* XXX why are some lengths signed, others unsigned? */
 	if (len <= 0) {
 		return 0;
@@ -404,20 +402,17 @@ dma_addr_t sbus_map_single(struct device *dev, void *va, size_t len, int directi
 	if (len > 256*1024) {			/* __get_free_pages() limit */
 		return 0;
 	}
-	return mmu_get_scsi_one(va, len, sdev->bus);
+	return mmu_get_scsi_one(dev, va, len);
 }
 
 void sbus_unmap_single(struct device *dev, dma_addr_t ba, size_t n, int direction)
 {
-	struct sbus_dev *sdev = to_sbus_device(dev);
-	mmu_release_scsi_one(ba, n, sdev->bus);
+	mmu_release_scsi_one(dev, ba, n);
 }
 
 int sbus_map_sg(struct device *dev, struct scatterlist *sg, int n, int direction)
 {
-	struct sbus_dev *sdev = to_sbus_device(dev);
-
-	mmu_get_scsi_sgl(sg, n, sdev->bus);
+	mmu_get_scsi_sgl(dev, sg, n);
 
 	/*
 	 * XXX sparc64 can return a partial length here. sun4c should do this
@@ -428,9 +423,7 @@ int sbus_map_sg(struct device *dev, struct scatterlist *sg, int n, int direction
 
 void sbus_unmap_sg(struct device *dev, struct scatterlist *sg, int n, int direction)
 {
-	struct sbus_dev *sdev = to_sbus_device(dev);
-
-	mmu_release_scsi_sgl(sg, n, sdev->bus);
+	mmu_release_scsi_sgl(dev, sg, n);
 }
 
 /*
@@ -438,7 +431,6 @@ void sbus_unmap_sg(struct device *dev, struct scatterlist *sg, int n, int direct
 void sbus_dma_sync_single_for_cpu(struct device *dev, dma_addr_t ba, size_t size, int direction)
 {
 #if 0
-	struct sbus_dev *sdev = to_sbus_device(dev);
 	unsigned long va;
 	struct resource *res;
 
@@ -459,7 +451,6 @@ void sbus_dma_sync_single_for_cpu(struct device *dev, dma_addr_t ba, size_t size
 void sbus_dma_sync_single_for_device(struct device *dev, dma_addr_t ba, size_t size, int direction)
 {
 #if 0
-	struct sbus_dev *sdev = to_sbus_device(dev);
 	unsigned long va;
 	struct resource *res;
 
-- 
cgit v1.2.3


From 944c67dff7a88f0a775e5b604937f9e30d2de555 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 18:01:36 -0700
Subject: sparc32: Implement more generic dma_*() interfaces.

These dispatch to either PCI or SBUS routines based upon
the device bus type.

This will allow us to let SBUS drivers call these routines.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/Makefile |   2 +-
 arch/sparc/kernel/dma.c    | 227 +++++++++++++++++++++++++++++++++++++++++++++
 arch/sparc/kernel/dma.h    |  14 +++
 arch/sparc/kernel/ioport.c |   2 +
 4 files changed, 244 insertions(+), 1 deletion(-)
 create mode 100644 arch/sparc/kernel/dma.c
 create mode 100644 arch/sparc/kernel/dma.h

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index 6e03a2a7863..eaf7cf4296a 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -13,7 +13,7 @@ obj-y    := entry.o wof.o wuf.o etrap.o rtrap.o traps.o $(IRQ_OBJS) \
 	    time.o windows.o cpu.o devices.o \
 	    tadpole.o tick14.o ptrace.o \
 	    unaligned.o una_asm.o muldiv.o \
-	    prom.o of_device.o devres.o
+	    prom.o of_device.o devres.o dma.o
 
 devres-y = ../../../kernel/irq/devres.o
 
diff --git a/arch/sparc/kernel/dma.c b/arch/sparc/kernel/dma.c
new file mode 100644
index 00000000000..ebc8403b035
--- /dev/null
+++ b/arch/sparc/kernel/dma.c
@@ -0,0 +1,227 @@
+/* dma.c: PCI and SBUS DMA accessors for 32-bit sparc.
+ *
+ * Copyright (C) 2008 David S. Miller <davem@davemloft.net>
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <linux/scatterlist.h>
+#include <linux/mm.h>
+
+#ifdef CONFIG_PCI
+#include <linux/pci.h>
+#endif
+
+#include "dma.h"
+
+int dma_supported(struct device *dev, u64 mask)
+{
+#ifdef CONFIG_PCI
+	if (dev->bus == &pci_bus_type)
+		return pci_dma_supported(to_pci_dev(dev), mask);
+#endif
+	return 0;
+}
+EXPORT_SYMBOL(dma_supported);
+
+int dma_set_mask(struct device *dev, u64 dma_mask)
+{
+#ifdef CONFIG_PCI
+	if (dev->bus == &pci_bus_type)
+		return pci_set_dma_mask(to_pci_dev(dev), dma_mask);
+#endif
+	return -EOPNOTSUPP;
+}
+EXPORT_SYMBOL(dma_set_mask);
+
+void *dma_alloc_coherent(struct device *dev, size_t size,
+			 dma_addr_t *dma_handle, gfp_t flag)
+{
+#ifdef CONFIG_PCI
+	if (dev->bus == &pci_bus_type)
+		return pci_alloc_consistent(to_pci_dev(dev), size, dma_handle);
+#endif
+	return sbus_alloc_consistent(dev, size, dma_handle);
+}
+EXPORT_SYMBOL(dma_alloc_coherent);
+
+void dma_free_coherent(struct device *dev, size_t size,
+		       void *cpu_addr, dma_addr_t dma_handle)
+{
+#ifdef CONFIG_PCI
+	if (dev->bus == &pci_bus_type) {
+		pci_free_consistent(to_pci_dev(dev), size,
+				    cpu_addr, dma_handle);
+		return;
+	}
+#endif
+	sbus_free_consistent(dev, size, cpu_addr, dma_handle);
+}
+EXPORT_SYMBOL(dma_free_coherent);
+
+dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
+			  size_t size, enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+	if (dev->bus == &pci_bus_type)
+		return pci_map_single(to_pci_dev(dev), cpu_addr,
+				      size, (int)direction);
+#endif
+	return sbus_map_single(dev, cpu_addr, size, (int)direction);
+}
+EXPORT_SYMBOL(dma_map_single);
+
+void dma_unmap_single(struct device *dev, dma_addr_t dma_addr,
+		      size_t size,
+		      enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+	if (dev->bus == &pci_bus_type) {
+		pci_unmap_single(to_pci_dev(dev), dma_addr,
+				 size, (int)direction);
+		return;
+	}
+#endif
+	sbus_unmap_single(dev, dma_addr, size, (int)direction);
+}
+EXPORT_SYMBOL(dma_unmap_single);
+
+dma_addr_t dma_map_page(struct device *dev, struct page *page,
+			unsigned long offset, size_t size,
+			enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+	if (dev->bus == &pci_bus_type)
+		return pci_map_page(to_pci_dev(dev), page, offset,
+				    size, (int)direction);
+#endif
+	return sbus_map_single(dev, page_address(page) + offset,
+			       size, (int)direction);
+}
+EXPORT_SYMBOL(dma_map_page);
+
+void dma_unmap_page(struct device *dev, dma_addr_t dma_address,
+		    size_t size, enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+	if (dev->bus == &pci_bus_type) {
+		pci_unmap_page(to_pci_dev(dev), dma_address,
+			       size, (int)direction);
+		return;
+	}
+#endif
+	sbus_unmap_single(dev, dma_address, size, (int)direction);
+}
+EXPORT_SYMBOL(dma_unmap_page);
+
+int dma_map_sg(struct device *dev, struct scatterlist *sg,
+			     int nents, enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+	if (dev->bus == &pci_bus_type)
+		return pci_map_sg(to_pci_dev(dev), sg, nents, (int)direction);
+#endif
+	return sbus_map_sg(dev, sg, nents, direction);
+}
+EXPORT_SYMBOL(dma_map_sg);
+
+void dma_unmap_sg(struct device *dev, struct scatterlist *sg,
+		  int nents, enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+	if (dev->bus == &pci_bus_type) {
+		pci_unmap_sg(to_pci_dev(dev), sg, nents, (int)direction);
+		return;
+	}
+#endif
+	sbus_unmap_sg(dev, sg, nents, (int)direction);
+}
+EXPORT_SYMBOL(dma_unmap_sg);
+
+void dma_sync_single_for_cpu(struct device *dev, dma_addr_t dma_handle,
+			     size_t size, enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+	if (dev->bus == &pci_bus_type) {
+		pci_dma_sync_single_for_cpu(to_pci_dev(dev), dma_handle,
+					    size, (int)direction);
+		return;
+	}
+#endif
+	sbus_dma_sync_single_for_cpu(dev, dma_handle, size, (int) direction);
+}
+EXPORT_SYMBOL(dma_sync_single_for_cpu);
+
+void dma_sync_single_for_device(struct device *dev, dma_addr_t dma_handle,
+				size_t size, enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+	if (dev->bus == &pci_bus_type) {
+		pci_dma_sync_single_for_device(to_pci_dev(dev), dma_handle,
+					       size, (int)direction);
+		return;
+	}
+#endif
+	sbus_dma_sync_single_for_device(dev, dma_handle, size, (int) direction);
+}
+EXPORT_SYMBOL(dma_sync_single_for_device);
+
+void dma_sync_single_range_for_cpu(struct device *dev,
+				   dma_addr_t dma_handle,
+				   unsigned long offset,
+				   size_t size,
+				   enum dma_data_direction direction)
+{
+	dma_sync_single_for_cpu(dev, dma_handle+offset, size, direction);
+}
+EXPORT_SYMBOL(dma_sync_single_range_for_cpu);
+
+void dma_sync_single_range_for_device(struct device *dev, dma_addr_t dma_handle,
+				      unsigned long offset, size_t size,
+				      enum dma_data_direction direction)
+{
+	dma_sync_single_for_device(dev, dma_handle+offset, size, direction);
+}
+EXPORT_SYMBOL(dma_sync_single_range_for_device);
+
+void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
+			 int nelems, enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+	if (dev->bus == &pci_bus_type) {
+		pci_dma_sync_sg_for_cpu(to_pci_dev(dev), sg,
+					nelems, (int)direction);
+		return;
+	}
+#endif
+	BUG();
+}
+EXPORT_SYMBOL(dma_sync_sg_for_cpu);
+
+void dma_sync_sg_for_device(struct device *dev,
+			    struct scatterlist *sg, int nelems,
+			    enum dma_data_direction direction)
+{
+#ifdef CONFIG_PCI
+	if (dev->bus == &pci_bus_type) {
+		pci_dma_sync_sg_for_device(to_pci_dev(dev), sg,
+					   nelems, (int)direction);
+		return;
+	}
+#endif
+	BUG();
+}
+EXPORT_SYMBOL(dma_sync_sg_for_device);
+
+int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+	return (dma_addr == DMA_ERROR_CODE);
+}
+EXPORT_SYMBOL(dma_mapping_error);
+
+int dma_get_cache_alignment(void)
+{
+	return 32;
+}
+EXPORT_SYMBOL(dma_get_cache_alignment);
diff --git a/arch/sparc/kernel/dma.h b/arch/sparc/kernel/dma.h
new file mode 100644
index 00000000000..f8d8951adb5
--- /dev/null
+++ b/arch/sparc/kernel/dma.h
@@ -0,0 +1,14 @@
+void *sbus_alloc_consistent(struct device *dev, long len, u32 *dma_addrp);
+void sbus_free_consistent(struct device *dev, long n, void *p, u32 ba);
+dma_addr_t sbus_map_single(struct device *dev, void *va,
+			   size_t len, int direction);
+void sbus_unmap_single(struct device *dev, dma_addr_t ba,
+		       size_t n, int direction);
+int sbus_map_sg(struct device *dev, struct scatterlist *sg,
+		int n, int direction);
+void sbus_unmap_sg(struct device *dev, struct scatterlist *sg,
+		   int n, int direction);
+void sbus_dma_sync_single_for_cpu(struct device *dev, dma_addr_t ba,
+				  size_t size, int direction);
+void sbus_dma_sync_single_for_device(struct device *dev, dma_addr_t ba,
+				     size_t size, int direction);
diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 11dccf94515..0b3035978e0 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -49,6 +49,8 @@
 #include <asm/iommu.h>
 #include <asm/io-unit.h>
 
+#include "dma.h"
+
 #define mmu_inval_dma_area(p, l)	/* Anton pulled it out for 2.4.0-xx */
 
 static struct resource *_sparc_find_resource(struct resource *r,
-- 
cgit v1.2.3


From 738f2b7b813913e651f39387d007dd961755dee2 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 18:09:11 -0700
Subject: sparc: Convert all SBUS drivers to dma_*() interfaces.

And all the SBUS dma interfaces are deleted.

A private implementation remains inside of the 32-bit sparc port which
exists only for the sake of the implementation of dma_*().

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sparc_ksyms.c | 8 --------
 1 file changed, 8 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index 9d85a83586a..b1d2c975b32 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -155,14 +155,6 @@ EXPORT_SYMBOL(BTFIXUP_CALL(pgprot_noncached));
 #ifdef CONFIG_SBUS
 EXPORT_SYMBOL(sbus_root);
 EXPORT_SYMBOL(sbus_set_sbus64);
-EXPORT_SYMBOL(sbus_alloc_consistent);
-EXPORT_SYMBOL(sbus_free_consistent);
-EXPORT_SYMBOL(sbus_map_single);
-EXPORT_SYMBOL(sbus_unmap_single);
-EXPORT_SYMBOL(sbus_map_sg);
-EXPORT_SYMBOL(sbus_unmap_sg);
-EXPORT_SYMBOL(sbus_dma_sync_single_for_cpu);
-EXPORT_SYMBOL(sbus_dma_sync_single_for_device);
 EXPORT_SYMBOL(sbus_iounmap);
 EXPORT_SYMBOL(sbus_ioremap);
 #endif
-- 
cgit v1.2.3


From 63237eeb5ac92d618a0a6055f4b1f65c5d14682b Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 26 Aug 2008 23:33:42 -0700
Subject: sparc: Move SBUS DMA attribute interfaces out of asm/sbus.h

This is in preparation for the subsequent asm/sbus.h removal.

Also, make these routines take a "struct device" or no
arguments, as appropriate.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/ioport.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 0b3035978e0..e87ed519ffa 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -250,7 +250,7 @@ static void _sparc_free_io(struct resource *res)
 
 #ifdef CONFIG_SBUS
 
-void sbus_set_sbus64(struct sbus_dev *sdev, int x)
+void sbus_set_sbus64(struct device *dev, int x)
 {
 	printk("sbus_set_sbus64: unsupported\n");
 }
-- 
cgit v1.2.3


From aba945e76b9caeae5b6cfff179ca7bebb9bac805 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 02:20:35 -0700
Subject: sparc32: Kill mmu_translate_dvma() usage.

Just simply use virt_to_page() on the provided virtual address pointer.

Kill #if 0'd code.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/ioport.c | 36 +-----------------------------------
 1 file changed, 1 insertion(+), 35 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index e87ed519ffa..82ef2016191 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -383,7 +383,7 @@ void sbus_free_consistent(struct device *dev, long n, void *p, u32 ba)
 	kfree(res);
 
 	/* mmu_inval_dma_area(va, n); */ /* it's consistent, isn't it */
-	pgv = mmu_translate_dvma(ba);
+	pgv = virt_to_page(p);
 	mmu_unmap_dma_area(ba, n);
 
 	__free_pages(pgv, get_order(n));
@@ -428,46 +428,12 @@ void sbus_unmap_sg(struct device *dev, struct scatterlist *sg, int n, int direct
 	mmu_release_scsi_sgl(dev, sg, n);
 }
 
-/*
- */
 void sbus_dma_sync_single_for_cpu(struct device *dev, dma_addr_t ba, size_t size, int direction)
 {
-#if 0
-	unsigned long va;
-	struct resource *res;
-
-	/* We do not need the resource, just print a message if invalid. */
-	res = _sparc_find_resource(&_sparc_dvma, ba);
-	if (res == NULL)
-		panic("sbus_dma_sync_single: 0x%x\n", ba);
-
-	va = page_address(mmu_translate_dvma(ba)); /* XXX higmem */
-	/*
-	 * XXX This bogosity will be fixed with the iommu rewrite coming soon
-	 * to a kernel near you. - Anton
-	 */
-	/* mmu_inval_dma_area(va, (size + PAGE_SIZE-1) & PAGE_MASK); */
-#endif
 }
 
 void sbus_dma_sync_single_for_device(struct device *dev, dma_addr_t ba, size_t size, int direction)
 {
-#if 0
-	unsigned long va;
-	struct resource *res;
-
-	/* We do not need the resource, just print a message if invalid. */
-	res = _sparc_find_resource(&_sparc_dvma, ba);
-	if (res == NULL)
-		panic("sbus_dma_sync_single: 0x%x\n", ba);
-
-	va = page_address(mmu_translate_dvma(ba)); /* XXX higmem */
-	/*
-	 * XXX This bogosity will be fixed with the iommu rewrite coming soon
-	 * to a kernel near you. - Anton
-	 */
-	/* mmu_inval_dma_area(va, (size + PAGE_SIZE-1) & PAGE_MASK); */
-#endif
 }
 
 /* Support code for sbus_init().  */
-- 
cgit v1.2.3


From 4b1c5df2af38b2681b7c1a058534d17c54aaf6cf Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 18:40:38 -0700
Subject: sparc32: Make mmu_map_dma_area and mmu_unmap_dma_area take a device
 pointer.

This lets us kill this "map it in every IOMMU" crazy code, and also
some of the final references to sbus_root.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/ioport.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 82ef2016191..d65fb9b0668 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -339,7 +339,7 @@ void *sbus_alloc_consistent(struct device *dev, long len, u32 *dma_addrp)
 	 * XXX That's where sdev would be used. Currently we load
 	 * all iommu tables with the same translations.
 	 */
-	if (mmu_map_dma_area(dma_addrp, va, res->start, len_total) != 0)
+	if (mmu_map_dma_area(dev, dma_addrp, va, res->start, len_total) != 0)
 		goto err_noiommu;
 
 	res->name = op->node->name;
@@ -384,7 +384,7 @@ void sbus_free_consistent(struct device *dev, long n, void *p, u32 ba)
 
 	/* mmu_inval_dma_area(va, n); */ /* it's consistent, isn't it */
 	pgv = virt_to_page(p);
-	mmu_unmap_dma_area(ba, n);
+	mmu_unmap_dma_area(dev, ba, n);
 
 	__free_pages(pgv, get_order(n));
 }
-- 
cgit v1.2.3


From 7e7e2f035663c5ceb029bfb9d91e75099b0a5625 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 02:45:36 -0700
Subject: sparc32: Convert apc to OF driver.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/apc.c | 72 ++++++++++++++++++++++++++-----------------------
 1 file changed, 38 insertions(+), 34 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/apc.c b/arch/sparc/kernel/apc.c
index 5267d48fb2c..0a20cd85fd3 100644
--- a/arch/sparc/kernel/apc.c
+++ b/arch/sparc/kernel/apc.c
@@ -12,9 +12,10 @@
 #include <linux/miscdevice.h>
 #include <linux/smp_lock.h>
 #include <linux/pm.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <asm/io.h>
-#include <asm/sbus.h>
 #include <asm/oplib.h>
 #include <asm/uaccess.h>
 #include <asm/auxio.h>
@@ -29,11 +30,10 @@
 #define APC_OBPNAME	"power-management"
 #define APC_DEVNAME "apc"
 
-volatile static u8 __iomem *regs; 
-static int apc_regsize;
+static u8 __iomem *regs;
 static int apc_no_idle __initdata = 0;
 
-#define apc_readb(offs)			(sbus_readb(regs+offs))
+#define apc_readb(offs)		(sbus_readb(regs+offs))
 #define apc_writeb(val, offs) 	(sbus_writeb(val, regs+offs))
 
 /* Specify "apc=noidle" on the kernel command line to 
@@ -69,9 +69,9 @@ static void apc_swift_idle(void)
 #endif
 } 
 
-static inline void apc_free(void)
+static inline void apc_free(struct of_device *op)
 {
-	sbus_iounmap(regs, apc_regsize);
+	of_iounmap(&op->resource[0], regs, resource_size(&op->resource[0]));
 }
 
 static int apc_open(struct inode *inode, struct file *f)
@@ -153,52 +153,56 @@ static const struct file_operations apc_fops = {
 
 static struct miscdevice apc_miscdev = { APC_MINOR, APC_DEVNAME, &apc_fops };
 
-static int __init apc_probe(void)
+static int __devinit apc_probe(struct of_device *op,
+			       const struct of_device_id *match)
 {
-	struct sbus_bus *sbus = NULL;
-	struct sbus_dev *sdev = NULL;
-	int iTmp = 0;
-
-	for_each_sbus(sbus) {
-		for_each_sbusdev(sdev, sbus) {
-			if (!strcmp(sdev->prom_name, APC_OBPNAME)) {
-				goto sbus_done;
-			}
-		}
-	}
+	int err;
 
-sbus_done:
-	if (!sdev) {
-		return -ENODEV;
-	}
-
-	apc_regsize = sdev->reg_addrs[0].reg_size;
-	regs = sbus_ioremap(&sdev->resource[0], 0, 
-				   apc_regsize, APC_OBPNAME);
-	if(!regs) {
+	regs = of_ioremap(&op->resource[0], 0,
+			  resource_size(&op->resource[0]), APC_OBPNAME);
+	if (!regs) {
 		printk(KERN_ERR "%s: unable to map registers\n", APC_DEVNAME);
 		return -ENODEV;
 	}
 
-	iTmp = misc_register(&apc_miscdev);
-	if (iTmp != 0) {
+	err = misc_register(&apc_miscdev);
+	if (err) {
 		printk(KERN_ERR "%s: unable to register device\n", APC_DEVNAME);
-		apc_free();
+		apc_free(op);
 		return -ENODEV;
 	}
 
 	/* Assign power management IDLE handler */
-	if(!apc_no_idle)
+	if (!apc_no_idle)
 		pm_idle = apc_swift_idle;	
 
 	printk(KERN_INFO "%s: power management initialized%s\n", 
-		APC_DEVNAME, apc_no_idle ? " (CPU idle disabled)" : "");
+	       APC_DEVNAME, apc_no_idle ? " (CPU idle disabled)" : "");
+
 	return 0;
 }
 
+static struct of_device_id apc_match[] = {
+	{
+		.name = APC_OBPNAME,
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, apc_match);
+
+static struct of_platform_driver apc_driver = {
+	.name		= "apc",
+	.match_table	= apc_match,
+	.probe		= apc_probe,
+};
+
+static int __init apc_init(void)
+{
+	return of_register_driver(&apc_driver, &of_bus_type);
+}
+
 /* This driver is not critical to the boot process
  * and is easiest to ioremap when SBus is already
  * initialized, so we install ourselves thusly:
  */
-__initcall(apc_probe);
-
+__initcall(apc_init);
-- 
cgit v1.2.3


From f1b6aa87b7eb8573d04f8cb21574fe565e86a380 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 02:48:26 -0700
Subject: sparc32: Convert pmc to OF driver.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/pmc.c | 57 ++++++++++++++++++++++++-------------------------
 1 file changed, 28 insertions(+), 29 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/pmc.c b/arch/sparc/kernel/pmc.c
index 7eca8871ff4..9976e82e323 100644
--- a/arch/sparc/kernel/pmc.c
+++ b/arch/sparc/kernel/pmc.c
@@ -10,9 +10,10 @@
 #include <linux/init.h>
 #include <linux/miscdevice.h>
 #include <linux/pm.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <asm/io.h>
-#include <asm/sbus.h>
 #include <asm/oplib.h>
 #include <asm/uaccess.h>
 #include <asm/auxio.h>
@@ -30,10 +31,9 @@
 #define PMC_IDLE_REG	0x00
 #define PMC_IDLE_ON		0x01
 
-volatile static u8 __iomem *regs; 
-static int pmc_regsize;
+static u8 __iomem *regs;
 
-#define pmc_readb(offs)			(sbus_readb(regs+offs))
+#define pmc_readb(offs)		(sbus_readb(regs+offs))
 #define pmc_writeb(val, offs) 	(sbus_writeb(val, regs+offs))
 
 /* 
@@ -53,31 +53,11 @@ void pmc_swift_idle(void)
 #endif
 } 
 
-static inline void pmc_free(void)
+static int __devinit pmc_probe(struct of_device *op,
+			       const struct of_device_id *match)
 {
-	sbus_iounmap(regs, pmc_regsize);
-}
-
-static int __init pmc_probe(void)
-{
-	struct sbus_bus *sbus = NULL;
-	struct sbus_dev *sdev = NULL;
-	for_each_sbus(sbus) {
-		for_each_sbusdev(sdev, sbus) {
-			if (!strcmp(sdev->prom_name, PMC_OBPNAME)) {
-				goto sbus_done;
-			}
-		}
-	}
-
-sbus_done:
-	if (!sdev) {
-		return -ENODEV;
-	}
-
-	pmc_regsize = sdev->reg_addrs[0].reg_size;
-	regs = sbus_ioremap(&sdev->resource[0], 0, 
-				   pmc_regsize, PMC_OBPNAME);
+	regs = of_ioremap(&op->resource[0], 0,
+			  resource_size(&op->resource[0]), PMC_OBPNAME);
 	if (!regs) {
 		printk(KERN_ERR "%s: unable to map registers\n", PMC_DEVNAME);
 		return -ENODEV;
@@ -92,8 +72,27 @@ sbus_done:
 	return 0;
 }
 
+static struct of_device_id pmc_match[] = {
+	{
+		.name = PMC_OBPNAME,
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, pmc_match);
+
+static struct of_platform_driver pmc_driver = {
+	.name		= "pmc",
+	.match_table	= pmc_match,
+	.probe		= pmc_probe,
+};
+
+static int __init pmc_init(void)
+{
+	return of_register_driver(&pmc_driver, &of_bus_type);
+}
+
 /* This driver is not critical to the boot process
  * and is easiest to ioremap when SBus is already
  * initialized, so we install ourselves thusly:
  */
-__initcall(pmc_probe);
+__initcall(pmc_init);
-- 
cgit v1.2.3


From 71d3721189c0f4fad105a81e052bddfb826b693b Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 02:50:57 -0700
Subject: sparc32: Convert sun4d IRQ code to use generic device tree probing.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sun4d_irq.c | 83 +++++++++++++++++++++++++------------------
 1 file changed, 48 insertions(+), 35 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c
index 1290b5998f8..7424967142f 100644
--- a/arch/sparc/kernel/sun4d_irq.c
+++ b/arch/sparc/kernel/sun4d_irq.c
@@ -409,47 +409,55 @@ static void sun4d_set_udt(int cpu)
 /* Setup IRQ distribution scheme. */
 void __init sun4d_distribute_irqs(void)
 {
+	struct device_node *dp;
+
 #ifdef DISTRIBUTE_IRQS
-	struct sbus_bus *sbus;
-	unsigned long sbus_serving_map;
+	cpumask_t sbus_serving_map;
 
 	sbus_serving_map = cpu_present_map;
-	for_each_sbus(sbus) {
-		if ((sbus->board * 2) == boot_cpu_id && (cpu_present_map & (1 << (sbus->board * 2 + 1))))
-			sbus_tid[sbus->board] = (sbus->board * 2 + 1);
-		else if (cpu_present_map & (1 << (sbus->board * 2)))
-			sbus_tid[sbus->board] = (sbus->board * 2);
-		else if (cpu_present_map & (1 << (sbus->board * 2 + 1)))
-			sbus_tid[sbus->board] = (sbus->board * 2 + 1);
+	for_each_node_by_name(dp, "sbi") {
+		int board = of_getintprop_default(dp, "board#", 0);
+
+		if ((board * 2) == boot_cpu_id && cpu_isset(board * 2 + 1, cpu_present_map))
+			sbus_tid[board] = (board * 2 + 1);
+		else if (cpu_isset(board * 2, cpu_present_map))
+			sbus_tid[board] = (board * 2);
+		else if (cpu_isset(board * 2 + 1, cpu_present_map))
+			sbus_tid[board] = (board * 2 + 1);
 		else
-			sbus_tid[sbus->board] = 0xff;
-		if (sbus_tid[sbus->board] != 0xff)
-			sbus_serving_map &= ~(1 << sbus_tid[sbus->board]);
+			sbus_tid[board] = 0xff;
+		if (sbus_tid[board] != 0xff)
+			cpu_clear(sbus_tid[board], sbus_serving_map);
 	}
-	for_each_sbus(sbus)
-		if (sbus_tid[sbus->board] == 0xff) {
+	for_each_node_by_name(dp, "sbi") {
+		int board = of_getintprop_default(dp, "board#", 0);
+		if (sbus_tid[board] == 0xff) {
 			int i = 31;
 				
-			if (!sbus_serving_map)
+			if (cpus_empty(sbus_serving_map))
 				sbus_serving_map = cpu_present_map;
-			while (!(sbus_serving_map & (1 << i)))
+			while (cpu_isset(i, sbus_serving_map))
 				i--;
-			sbus_tid[sbus->board] = i;
-			sbus_serving_map &= ~(1 << i);
+			sbus_tid[board] = i;
+			cpu_clear(i, sbus_serving_map);
 		}
-	for_each_sbus(sbus) {
-		printk("sbus%d IRQs directed to CPU%d\n", sbus->board, sbus_tid[sbus->board]);
-		set_sbi_tid(sbus->devid, sbus_tid[sbus->board] << 3);
+	}
+	for_each_node_by_name(dp, "sbi") {
+		int devid = of_getintprop_default(dp, "device-id", 0);
+		int board = of_getintprop_default(dp, "board#", 0);
+		printk("sbus%d IRQs directed to CPU%d\n", board, sbus_tid[board]);
+		set_sbi_tid(devid, sbus_tid[board] << 3);
 	}
 #else
-	struct sbus_bus *sbus;
 	int cpuid = cpu_logical_map(1);
 
 	if (cpuid == -1)
 		cpuid = cpu_logical_map(0);
-	for_each_sbus(sbus) {
-		sbus_tid[sbus->board] = cpuid;
-		set_sbi_tid(sbus->devid, cpuid << 3);
+	for_each_node_by_name(dp, "sbi") {
+		int devid = of_getintprop_default(dp, "device-id", 0);
+		int board = of_getintprop_default(dp, "board#", 0);
+		sbus_tid[board] = cpuid;
+		set_sbi_tid(devid, cpuid << 3);
 	}
 	printk("All sbus IRQs directed to CPU%d\n", cpuid);
 #endif
@@ -541,29 +549,34 @@ static void __init sun4d_init_timers(irq_handler_t counter_fn)
 
 void __init sun4d_init_sbi_irq(void)
 {
-	struct sbus_bus *sbus;
-	unsigned mask;
+	struct device_node *dp;
 
 	nsbi = 0;
-	for_each_sbus(sbus)
+	for_each_node_by_name(dp, "sbi")
 		nsbi++;
 	sbus_actions = kzalloc (nsbi * 8 * 4 * sizeof(struct sbus_action), GFP_ATOMIC);
 	if (!sbus_actions) {
 		prom_printf("SUN4D: Cannot allocate sbus_actions, halting.\n");
 		prom_halt();
 	}
-	for_each_sbus(sbus) {
+	for_each_node_by_name(dp, "sbi") {
+		int devid = of_getintprop_default(dp, "device-id", 0);
+		int board = of_getintprop_default(dp, "board#", 0);
+		unsigned int mask;
+
 #ifdef CONFIG_SMP	
-		extern unsigned char boot_cpu_id;
+		{
+			extern unsigned char boot_cpu_id;
 		
-		set_sbi_tid(sbus->devid, boot_cpu_id << 3);
-		sbus_tid[sbus->board] = boot_cpu_id;
+			set_sbi_tid(devid, boot_cpu_id << 3);
+			sbus_tid[board] = boot_cpu_id;
+		}
 #endif
 		/* Get rid of pending irqs from PROM */
-		mask = acquire_sbi(sbus->devid, 0xffffffff);
+		mask = acquire_sbi(devid, 0xffffffff);
 		if (mask) {
-			printk ("Clearing pending IRQs %08x on SBI %d\n", mask, sbus->board);
-			release_sbi(sbus->devid, mask);
+			printk ("Clearing pending IRQs %08x on SBI %d\n", mask, board);
+			release_sbi(devid, mask);
 		}
 	}
 }
-- 
cgit v1.2.3


From 33c4655c00e6af3ec4023f2cafd63dd4a42de49b Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 02:56:39 -0700
Subject: sparc: Kill SBUS layer IRQ hooks.

IRQs are obtained by drivers from the of_device struct.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/ioport.c    | 53 -------------------------------------------
 arch/sparc/kernel/sun4c_irq.c | 13 -----------
 arch/sparc/kernel/sun4d_irq.c | 21 -----------------
 arch/sparc/kernel/sun4m_irq.c | 13 -----------
 4 files changed, 100 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index d65fb9b0668..0e478301e8e 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -255,49 +255,6 @@ void sbus_set_sbus64(struct device *dev, int x)
 	printk("sbus_set_sbus64: unsupported\n");
 }
 
-extern unsigned int sun4d_build_irq(struct sbus_dev *sdev, int irq);
-void __init sbus_fill_device_irq(struct sbus_dev *sdev)
-{
-	struct linux_prom_irqs irqs[PROMINTR_MAX];
-	int len;
-
-	len = prom_getproperty(sdev->prom_node, "intr",
-			       (char *)irqs, sizeof(irqs));
-	if (len != -1) {
-		sdev->num_irqs = len / 8;
-		if (sdev->num_irqs == 0) {
-			sdev->irqs[0] = 0;
-		} else if (sparc_cpu_model == sun4d) {
-			for (len = 0; len < sdev->num_irqs; len++)
-				sdev->irqs[len] =
-					sun4d_build_irq(sdev, irqs[len].pri);
-		} else {
-			for (len = 0; len < sdev->num_irqs; len++)
-				sdev->irqs[len] = irqs[len].pri;
-		}
-	} else {
-		int interrupts[PROMINTR_MAX];
-
-		/* No "intr" node found-- check for "interrupts" node.
-		 * This node contains SBus interrupt levels, not IPLs
-		 * as in "intr", and no vector values.  We convert
-		 * SBus interrupt levels to PILs (platform specific).
-		 */
-		len = prom_getproperty(sdev->prom_node, "interrupts",
-				       (char *)interrupts, sizeof(interrupts));
-		if (len == -1) {
-			sdev->irqs[0] = 0;
-			sdev->num_irqs = 0;
-		} else {
-			sdev->num_irqs = len / sizeof(int);
-			for (len = 0; len < sdev->num_irqs; len++) {
-				sdev->irqs[len] =
-					sbint_to_irq(sdev, interrupts[len]);
-			}
-		}
-	} 
-}
-
 /*
  * Allocate a chunk of memory suitable for DMA.
  * Typically devices use them for control blocks.
@@ -479,16 +436,6 @@ void __init sbus_setup_iommu(struct sbus_bus *sbus, struct device_node *dp)
 #endif
 }
 
-void __init sbus_setup_arch_props(struct sbus_bus *sbus, struct device_node *dp)
-{
-	if (sparc_cpu_model == sun4d) {
-		struct device_node *parent = dp->parent;
-
-		sbus->devid = of_getintprop_default(parent, "device-id", 0);
-		sbus->board = of_getintprop_default(parent, "board#", 0);
-	}
-}
-
 int __init sbus_arch_preinit(void)
 {
 	register_proc_sparc_ioport();
diff --git a/arch/sparc/kernel/sun4c_irq.c b/arch/sparc/kernel/sun4c_irq.c
index 340fc395fe2..a5a32a0b10d 100644
--- a/arch/sparc/kernel/sun4c_irq.c
+++ b/arch/sparc/kernel/sun4c_irq.c
@@ -66,18 +66,6 @@ static struct resource sun4c_intr_eb = { "sun4c_intr" };
  */
 unsigned char *interrupt_enable = NULL;
 
-static int sun4c_pil_map[] = { 0, 1, 2, 3, 5, 7, 8, 9 };
-
-static unsigned int sun4c_sbint_to_irq(struct sbus_dev *sdev,
-				       unsigned int sbint)
-{
-	if (sbint >= sizeof(sun4c_pil_map)) {
-		printk(KERN_ERR "%s: bogus SBINT %d\n", sdev->prom_name, sbint);
-		BUG();
-	}
-	return sun4c_pil_map[sbint];
-}
-
 static void sun4c_disable_irq(unsigned int irq_nr)
 {
 	unsigned long flags;
@@ -243,7 +231,6 @@ void __init sun4c_init_IRQ(void)
 	if (!interrupt_enable)
 		panic("Cannot map interrupt_enable");
 
-	BTFIXUPSET_CALL(sbint_to_irq, sun4c_sbint_to_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(enable_irq, sun4c_enable_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(disable_irq, sun4c_disable_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(enable_pil_irq, sun4c_enable_irq, BTFIXUPCALL_NORM);
diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c
index 7424967142f..acfb447c00d 100644
--- a/arch/sparc/kernel/sun4d_irq.c
+++ b/arch/sparc/kernel/sun4d_irq.c
@@ -257,26 +257,6 @@ void sun4d_handler_irq(int irq, struct pt_regs * regs)
 	set_irq_regs(old_regs);
 }
 
-unsigned int sun4d_build_irq(struct sbus_dev *sdev, int irq)
-{
-	int sbusl = pil_to_sbus[irq];
-
-	if (sbusl)
-		return ((sdev->bus->board + 1) << 5) + (sbusl << 2) + sdev->slot;
-	else
-		return irq;
-}
-
-static unsigned int sun4d_sbint_to_irq(struct sbus_dev *sdev,
-				       unsigned int sbint)
-{
-	if (sbint >= sizeof(sbus_to_pil)) {
-		printk(KERN_ERR "%s: bogus SBINT %d\n", sdev->prom_name, sbint);
-		BUG();
-	}
-	return sun4d_build_irq(sdev, sbus_to_pil[sbint]);
-}
-
 int sun4d_request_irq(unsigned int irq,
 		irq_handler_t handler,
 		unsigned long irqflags, const char * devname, void *dev_id)
@@ -585,7 +565,6 @@ void __init sun4d_init_IRQ(void)
 {
 	local_irq_disable();
 
-	BTFIXUPSET_CALL(sbint_to_irq, sun4d_sbint_to_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(enable_irq, sun4d_enable_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(disable_irq, sun4d_disable_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(clear_clock_irq, sun4d_clear_clock_irq, BTFIXUPCALL_NORM);
diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c
index 94e02de960e..d66334b853e 100644
--- a/arch/sparc/kernel/sun4m_irq.c
+++ b/arch/sparc/kernel/sun4m_irq.c
@@ -152,18 +152,6 @@ static unsigned long irq_mask[] = {
 	SUN4M_INT_SBUS(6)				  /* 14 irq 13 */
 };
 
-static int sun4m_pil_map[] = { 0, 2, 3, 5, 7, 9, 11, 13 };
-
-static unsigned int sun4m_sbint_to_irq(struct sbus_dev *sdev,
-				       unsigned int sbint)
-{
-	if (sbint >= sizeof(sun4m_pil_map)) {
-		printk(KERN_ERR "%s: bogus SBINT %d\n", sdev->prom_name, sbint);
-		BUG();
-	}
-	return sun4m_pil_map[sbint] | 0x30;
-}
-
 static unsigned long sun4m_get_irqmask(unsigned int irq)
 {
 	unsigned long mask;
@@ -447,7 +435,6 @@ void __init sun4m_init_IRQ(void)
 				&sun4m_interrupts->undirected_target;
 		sun4m_interrupts->undirected_target = 0;
 	}
-	BTFIXUPSET_CALL(sbint_to_irq, sun4m_sbint_to_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(enable_irq, sun4m_enable_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(disable_irq, sun4m_disable_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(enable_pil_irq, sun4m_enable_pil_irq, BTFIXUPCALL_NORM);
-- 
cgit v1.2.3


From 104364810ff5b0844a2183fbca989f70e86d486b Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 03:38:42 -0700
Subject: sparc: Remove SBUS layer resource and irq handling.

All the drivers use OF device objects now for this
information.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/ioport.c | 27 ---------------------------
 1 file changed, 27 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 0e478301e8e..d82a810564b 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -394,33 +394,6 @@ void sbus_dma_sync_single_for_device(struct device *dev, dma_addr_t ba, size_t s
 }
 
 /* Support code for sbus_init().  */
-/*
- * XXX This functions appears to be a distorted version of
- * prom_sbus_ranges_init(), with all sun4d stuff cut away.
- * Ask DaveM what is going on here, how is sun4d supposed to work... XXX
- */
-/* added back sun4d patch from Thomas Bogendoerfer - should be OK (crn) */
-void __init sbus_arch_bus_ranges_init(struct device_node *pn, struct sbus_bus *sbus)
-{
-	int parent_node = pn->node;
-
-	if (sparc_cpu_model == sun4d) {
-		struct linux_prom_ranges iounit_ranges[PROMREG_MAX];
-		int num_iounit_ranges, len;
-
-		len = prom_getproperty(parent_node, "ranges",
-				       (char *) iounit_ranges,
-				       sizeof (iounit_ranges));
-		if (len != -1) {
-			num_iounit_ranges =
-				(len / sizeof(struct linux_prom_ranges));
-			prom_adjust_ranges(sbus->sbus_ranges,
-					   sbus->num_sbus_ranges,
-					   iounit_ranges, num_iounit_ranges);
-		}
-	}
-}
-
 void __init sbus_setup_iommu(struct sbus_bus *sbus, struct device_node *dp)
 {
 #ifndef CONFIG_SUN4
-- 
cgit v1.2.3


From 98261dd1a393777f4400d8ad5a29e97cb30e5422 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 03:47:56 -0700
Subject: sparc: Remove dinky old-style SBUS probing facilities.

No drivers or code uses this stuff any more, every driver has been
converted over to OF device probing.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sparc_ksyms.c | 1 -
 1 file changed, 1 deletion(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index b1d2c975b32..84aaac43594 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -153,7 +153,6 @@ EXPORT_SYMBOL(BTFIXUP_CALL(mmu_release_scsi_one));
 EXPORT_SYMBOL(BTFIXUP_CALL(pgprot_noncached));
 
 #ifdef CONFIG_SBUS
-EXPORT_SYMBOL(sbus_root);
 EXPORT_SYMBOL(sbus_set_sbus64);
 EXPORT_SYMBOL(sbus_iounmap);
 EXPORT_SYMBOL(sbus_ioremap);
-- 
cgit v1.2.3


From 454eeb2dd7bd0418451ea33a606d0fa50aa36718 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 04:05:35 -0700
Subject: sparc: Convert remaining sbus_ioremap() and sbus_iounmap() users.

Use of_ioremap() and of_iounmap() instead.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/auxio.c     |  6 ++++--
 arch/sparc/kernel/sun4c_irq.c |  5 +++--
 arch/sparc/kernel/sun4d_irq.c |  5 +++--
 arch/sparc/kernel/sun4m_irq.c | 11 ++++++-----
 arch/sparc/kernel/time.c      |  5 +++--
 5 files changed, 19 insertions(+), 13 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/auxio.c b/arch/sparc/kernel/auxio.c
index baf4ed3fb0f..09c857215a5 100644
--- a/arch/sparc/kernel/auxio.c
+++ b/arch/sparc/kernel/auxio.c
@@ -6,6 +6,8 @@
 #include <linux/stddef.h>
 #include <linux/init.h>
 #include <linux/spinlock.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 #include <asm/oplib.h>
 #include <asm/io.h>
 #include <asm/auxio.h>
@@ -59,7 +61,7 @@ void __init auxio_probe(void)
 	r.flags = auxregs[0].which_io & 0xF;
 	r.start = auxregs[0].phys_addr;
 	r.end = auxregs[0].phys_addr + auxregs[0].reg_size - 1;
-	auxio_register = sbus_ioremap(&r, 0, auxregs[0].reg_size, "auxio");
+	auxio_register = of_ioremap(&r, 0, auxregs[0].reg_size, "auxio");
 	/* Fix the address on sun4m and sun4c. */
 	if((((unsigned long) auxregs[0].phys_addr) & 3) == 3 ||
 	   sparc_cpu_model == sun4c)
@@ -128,7 +130,7 @@ void __init auxio_power_probe(void)
 	r.flags = regs.which_io & 0xF;
 	r.start = regs.phys_addr;
 	r.end = regs.phys_addr + regs.reg_size - 1;
-	auxio_power_register = (unsigned char *) sbus_ioremap(&r, 0,
+	auxio_power_register = (unsigned char *) of_ioremap(&r, 0,
 	    regs.reg_size, "auxpower");
 
 	/* Display a quick message on the console. */
diff --git a/arch/sparc/kernel/sun4c_irq.c b/arch/sparc/kernel/sun4c_irq.c
index a5a32a0b10d..a74582455cc 100644
--- a/arch/sparc/kernel/sun4c_irq.c
+++ b/arch/sparc/kernel/sun4c_irq.c
@@ -18,6 +18,8 @@
 #include <linux/interrupt.h>
 #include <linux/slab.h>
 #include <linux/init.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 #include "irq.h"
 
 #include <asm/ptrace.h>
@@ -34,7 +36,6 @@
 #include <asm/sun4paddr.h>
 #include <asm/idprom.h>
 #include <asm/machines.h>
-#include <asm/sbus.h>
 
 #if 0
 static struct resource sun4c_timer_eb = { "sun4c_timer" };
@@ -224,7 +225,7 @@ void __init sun4c_init_IRQ(void)
 			memset(&phyres, 0, sizeof(struct resource));
 			phyres.flags = int_regs[0].which_io;
 			phyres.start = int_regs[0].phys_addr;
-			interrupt_enable = (char *) sbus_ioremap(&phyres, 0,
+			interrupt_enable = (char *) of_ioremap(&phyres, 0,
 			    int_regs[0].reg_size, "sun4c_intr");
 		}
 	}
diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c
index acfb447c00d..c4a2bfb750a 100644
--- a/arch/sparc/kernel/sun4d_irq.c
+++ b/arch/sparc/kernel/sun4d_irq.c
@@ -19,6 +19,8 @@
 #include <linux/smp.h>
 #include <linux/spinlock.h>
 #include <linux/seq_file.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <asm/ptrace.h>
 #include <asm/processor.h>
@@ -34,7 +36,6 @@
 #include <asm/io.h>
 #include <asm/pgalloc.h>
 #include <asm/pgtable.h>
-#include <asm/sbus.h>
 #include <asm/sbi.h>
 #include <asm/cacheflush.h>
 #include <asm/irq_regs.h>
@@ -475,7 +476,7 @@ static void __init sun4d_init_timers(irq_handler_t counter_fn)
 	r.start = CSR_BASE(0)+BW_TIMER_LIMIT;
 #endif
 	r.flags = 0xf;
-	sun4d_timers = (struct sun4d_timer_regs *) sbus_ioremap(&r, 0,
+	sun4d_timers = (struct sun4d_timer_regs *) of_ioremap(&r, 0,
 	    PAGE_SIZE, "user timer");
 
 	sun4d_timers->l10_timer_limit =  (((1000000/HZ) + 1) << 10);
diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c
index d66334b853e..3481feca335 100644
--- a/arch/sparc/kernel/sun4m_irq.c
+++ b/arch/sparc/kernel/sun4m_irq.c
@@ -20,6 +20,8 @@
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/ioport.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
 #include <asm/ptrace.h>
 #include <asm/processor.h>
@@ -35,7 +37,6 @@
 #include <asm/smp.h>
 #include <asm/irq.h>
 #include <asm/io.h>
-#include <asm/sbus.h>
 #include <asm/cacheflush.h>
 
 #include "irq.h"
@@ -327,13 +328,13 @@ static void __init sun4m_init_timers(irq_handler_t counter_fn)
 	/* Map the per-cpu Counter registers. */
 	r.flags = cnt_regs[0].which_io;
 	r.start = cnt_regs[0].phys_addr;
-	sun4m_timers = (struct sun4m_timer_regs *) sbus_ioremap(&r, 0,
+	sun4m_timers = (struct sun4m_timer_regs *) of_ioremap(&r, 0,
 	    PAGE_SIZE*SUN4M_NCPUS, "sun4m_cpu_cnt");
 	/* Map the system Counter register. */
 	/* XXX Here we expect consequent calls to yeld adjusent maps. */
 	r.flags = cnt_regs[4].which_io;
 	r.start = cnt_regs[4].phys_addr;
-	sbus_ioremap(&r, 0, cnt_regs[4].reg_size, "sun4m_sys_cnt");
+	of_ioremap(&r, 0, cnt_regs[4].reg_size, "sun4m_sys_cnt");
 
 	sun4m_timers->l10_timer_limit =  (((1000000/HZ) + 1) << 10);
 	master_l10_counter = &sun4m_timers->l10_cur_count;
@@ -411,13 +412,13 @@ void __init sun4m_init_IRQ(void)
 	/* Map the interrupt registers for all possible cpus. */
 	r.flags = int_regs[0].which_io;
 	r.start = int_regs[0].phys_addr;
-	sun4m_interrupts = (struct sun4m_intregs *) sbus_ioremap(&r, 0,
+	sun4m_interrupts = (struct sun4m_intregs *) of_ioremap(&r, 0,
 	    PAGE_SIZE*SUN4M_NCPUS, "interrupts_percpu");
 
 	/* Map the system interrupt control registers. */
 	r.flags = int_regs[4].which_io;
 	r.start = int_regs[4].phys_addr;
-	sbus_ioremap(&r, 0, int_regs[4].reg_size, "interrupts_system");
+	of_ioremap(&r, 0, int_regs[4].reg_size, "interrupts_system");
 
 	sun4m_interrupts->set = ~SUN4M_INT_MASKALL;
 	for (i = 0; !cpu_find_by_instance(i, NULL, &mid); i++)
diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c
index 0762f5db192..a713bb43db8 100644
--- a/arch/sparc/kernel/time.c
+++ b/arch/sparc/kernel/time.c
@@ -28,6 +28,7 @@
 #include <linux/pci.h>
 #include <linux/ioport.h>
 #include <linux/profile.h>
+#include <linux/of.h>
 #include <linux/of_device.h>
 
 #include <asm/oplib.h>
@@ -260,7 +261,7 @@ static inline void sun4_clock_probe(void)
 	if( idprom->id_machtype == (SM_SUN4 | SM_4_330) ) {
 		sp_clock_typ = MSTK48T02;
 		r.start = sun4_clock_physaddr;
-		mstk48t02_regs = sbus_ioremap(&r, 0,
+		mstk48t02_regs = of_ioremap(&r, 0,
 				       sizeof(struct mostek48t02), NULL);
 		mstk48t08_regs = NULL;  /* To catch weirdness */
 		intersil_clock = NULL;  /* just in case */
@@ -274,7 +275,7 @@ static inline void sun4_clock_probe(void)
 		sp_clock_typ = INTERSIL;
 		r.start = sun4_clock_physaddr;
 		intersil_clock = (struct intersil *) 
-		    sbus_ioremap(&r, 0, sizeof(*intersil_clock), "intersil");
+		    of_ioremap(&r, 0, sizeof(*intersil_clock), "intersil");
 		mstk48t02_regs = 0;  /* just be sure */
 		mstk48t08_regs = NULL;  /* ditto */
 		/* initialise the clock */
-- 
cgit v1.2.3


From 615deeb27b7c3f51b464b47e8b9a8e433ab2d0ca Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 04:11:16 -0700
Subject: sparc: Kill sbus_ioremap() and sbus_iounmap().

No more users.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/ioport.c      | 16 ----------------
 arch/sparc/kernel/sparc_ksyms.c |  2 --
 2 files changed, 18 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index d82a810564b..e6177dde103 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -143,15 +143,6 @@ void iounmap(volatile void __iomem *virtual)
 	}
 }
 
-/*
- */
-void __iomem *sbus_ioremap(struct resource *phyres, unsigned long offset,
-    unsigned long size, char *name)
-{
-	return _sparc_alloc_io(phyres->flags & 0xF,
-	    phyres->start + offset, size, name);
-}
-
 void __iomem *of_ioremap(struct resource *res, unsigned long offset,
 			 unsigned long size, char *name)
 {
@@ -167,13 +158,6 @@ void of_iounmap(struct resource *res, void __iomem *base, unsigned long size)
 }
 EXPORT_SYMBOL(of_iounmap);
 
-/*
- */
-void sbus_iounmap(volatile void __iomem *addr, unsigned long size)
-{
-	iounmap(addr);
-}
-
 /*
  * Meat of mapping
  */
diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index 84aaac43594..f2722ee3967 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -154,8 +154,6 @@ EXPORT_SYMBOL(BTFIXUP_CALL(pgprot_noncached));
 
 #ifdef CONFIG_SBUS
 EXPORT_SYMBOL(sbus_set_sbus64);
-EXPORT_SYMBOL(sbus_iounmap);
-EXPORT_SYMBOL(sbus_ioremap);
 #endif
 #ifdef CONFIG_PCI
 EXPORT_SYMBOL(ebus_chain);
-- 
cgit v1.2.3


From f8e4d32cb5153a9d6a8e8864e357dad1349f3b85 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 04:20:14 -0700
Subject: sparc: Kill sbus_arch_preinit().

32-bit sparc just needed it to register the ioport procfs bits, do this
via an arch_initcall() instead.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/ioport.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index e6177dde103..24645f9f56f 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -393,21 +393,15 @@ void __init sbus_setup_iommu(struct sbus_bus *sbus, struct device_node *dp)
 #endif
 }
 
-int __init sbus_arch_preinit(void)
+static int __init sparc_register_ioport(void)
 {
 	register_proc_sparc_ioport();
 
-#ifdef CONFIG_SUN4
-	{
-		extern void sun4_dvma_init(void);
-		sun4_dvma_init();
-	}
-	return 1;
-#else
 	return 0;
-#endif
 }
 
+arch_initcall(sparc_register_ioport);
+
 void __init sbus_arch_postinit(void)
 {
 	if (sparc_cpu_model == sun4d) {
-- 
cgit v1.2.3


From 5059625ed8862e897760b86effff0f8a35989c0d Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 04:22:37 -0700
Subject: sparc: Add OF archdata propagation helper.

Add a helper function that, given a bus of_device node, propagates
all iommu, stc, and host_controller values down to the child nodes.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/of_device.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/of_device.c b/arch/sparc/kernel/of_device.c
index aace71f7d6e..8fdc1b3113b 100644
--- a/arch/sparc/kernel/of_device.c
+++ b/arch/sparc/kernel/of_device.c
@@ -40,6 +40,28 @@ unsigned int irq_of_parse_and_map(struct device_node *node, int index)
 }
 EXPORT_SYMBOL(irq_of_parse_and_map);
 
+/* Take the archdata values for IOMMU, STC, and HOSTDATA found in
+ * BUS and propagate to all child of_device objects.
+ */
+void of_propagate_archdata(struct of_device *bus)
+{
+	struct dev_archdata *bus_sd = &bus->dev.archdata;
+	struct device_node *bus_dp = bus->node;
+	struct device_node *dp;
+
+	for (dp = bus_dp->child; dp; dp = dp->sibling) {
+		struct of_device *op = of_find_device_by_node(dp);
+
+		op->dev.archdata.iommu = bus_sd->iommu;
+		op->dev.archdata.stc = bus_sd->stc;
+		op->dev.archdata.host_controller = bus_sd->host_controller;
+		op->dev.archdata.numa_node = bus_sd->numa_node;
+
+		if (dp->child)
+			of_propagate_archdata(op);
+	}
+}
+
 #ifdef CONFIG_PCI
 struct bus_type ebus_bus_type;
 EXPORT_SYMBOL(ebus_bus_type);
-- 
cgit v1.2.3


From 046e26a8ba10b8ceff822f8d91451ab6c1e08c4e Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 04:54:04 -0700
Subject: sparc: Remove generic SBUS probing layer.

The individual SBUS IOMMU arch code now sets the IOMMU information
directly into the OF device objects.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/ioport.c | 23 -----------------------
 1 file changed, 23 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index 24645f9f56f..bca2d6fd5c4 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -377,22 +377,6 @@ void sbus_dma_sync_single_for_device(struct device *dev, dma_addr_t ba, size_t s
 {
 }
 
-/* Support code for sbus_init().  */
-void __init sbus_setup_iommu(struct sbus_bus *sbus, struct device_node *dp)
-{
-#ifndef CONFIG_SUN4
-	struct device_node *parent = dp->parent;
-
-	if (sparc_cpu_model != sun4d &&
-	    parent != NULL &&
-	    !strcmp(parent->name, "iommu"))
-		iommu_init(parent, sbus);
-
-	if (sparc_cpu_model == sun4d)
-		iounit_init(sbus);
-#endif
-}
-
 static int __init sparc_register_ioport(void)
 {
 	register_proc_sparc_ioport();
@@ -402,13 +386,6 @@ static int __init sparc_register_ioport(void)
 
 arch_initcall(sparc_register_ioport);
 
-void __init sbus_arch_postinit(void)
-{
-	if (sparc_cpu_model == sun4d) {
-		extern void sun4d_init_sbi_irq(void);
-		sun4d_init_sbi_irq();
-	}
-}
 #endif /* CONFIG_SBUS */
 
 #ifdef CONFIG_PCI
-- 
cgit v1.2.3


From 47a2d7288538e7f334a0be318317b138f0e3dfbe Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 19:45:20 -0700
Subject: sparc: Kill sbus_bus_type.

No longer used.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/of_device.c | 9 ---------
 1 file changed, 9 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/of_device.c b/arch/sparc/kernel/of_device.c
index 8fdc1b3113b..576fa2ffa69 100644
--- a/arch/sparc/kernel/of_device.c
+++ b/arch/sparc/kernel/of_device.c
@@ -67,11 +67,6 @@ struct bus_type ebus_bus_type;
 EXPORT_SYMBOL(ebus_bus_type);
 #endif
 
-#ifdef CONFIG_SBUS
-struct bus_type sbus_bus_type;
-EXPORT_SYMBOL(sbus_bus_type);
-#endif
-
 struct bus_type of_platform_bus_type;
 EXPORT_SYMBOL(of_platform_bus_type);
 
@@ -593,10 +588,6 @@ static int __init of_bus_driver_init(void)
 	if (!err)
 		err = of_bus_type_init(&ebus_bus_type, "ebus");
 #endif
-#ifdef CONFIG_SBUS
-	if (!err)
-		err = of_bus_type_init(&sbus_bus_type, "sbus");
-#endif
 
 	if (!err)
 		scan_of_devices();
-- 
cgit v1.2.3


From 0ad626a2a4c3d8e565b3a6f10eeda5b43560fbdb Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 26 Aug 2008 21:14:05 -0700
Subject: sparc32: Kill iounit_map_dma_*().

Unused.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sparc_ksyms.c | 3 ---
 1 file changed, 3 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index f2722ee3967..a9478dbef2e 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -134,9 +134,6 @@ EXPORT_SYMBOL(set_auxio);
 EXPORT_SYMBOL(get_auxio);
 #endif
 EXPORT_SYMBOL(io_remap_pfn_range);
-  /* P3: iounit_xxx may be needed, sun4d users */
-/* EXPORT_SYMBOL(iounit_map_dma_init); */
-/* EXPORT_SYMBOL(iounit_map_dma_page); */
 
 #ifndef CONFIG_SMP
 EXPORT_SYMBOL(BTFIXUP_CALL(___xchg32));
-- 
cgit v1.2.3


From 9dc69230a96a84ca8e6eef89cd34fad0dd8a1a09 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 27 Aug 2008 19:54:01 -0700
Subject: sparc: Kill now spurious includes of sbus.h

In order to make this week I also had to add an include
of linux/dma-mapping.h to asm/pci_32.h because drivers/pci/pci.c
really depends upon getting this header somehow.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/ioport.c      | 1 -
 arch/sparc/kernel/pcic.c        | 1 -
 arch/sparc/kernel/sparc_ksyms.c | 1 -
 arch/sparc/kernel/sun4d_smp.c   | 1 -
 4 files changed, 4 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/ioport.c b/arch/sparc/kernel/ioport.c
index bca2d6fd5c4..4f025b36934 100644
--- a/arch/sparc/kernel/ioport.c
+++ b/arch/sparc/kernel/ioport.c
@@ -42,7 +42,6 @@
 #include <asm/vaddrs.h>
 #include <asm/oplib.h>
 #include <asm/prom.h>
-#include <asm/sbus.h>
 #include <asm/page.h>
 #include <asm/pgalloc.h>
 #include <asm/dma.h>
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index a6a6f982337..9a0aa4ec579 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -18,7 +18,6 @@
 #include <linux/jiffies.h>
 
 #include <asm/ebus.h>
-#include <asm/sbus.h> /* for sanity check... */
 #include <asm/swift.h> /* for cache flushing. */
 #include <asm/io.h>
 
diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index a9478dbef2e..50ec48ddef6 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -43,7 +43,6 @@
 #include <asm/uaccess.h>
 #include <asm/checksum.h>
 #ifdef CONFIG_SBUS
-#include <asm/sbus.h>
 #include <asm/dma.h>
 #endif
 #ifdef CONFIG_PCI
diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index dfde77ff084..bf7147a9308 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -30,7 +30,6 @@
 #include <asm/pgalloc.h>
 #include <asm/pgtable.h>
 #include <asm/oplib.h>
-#include <asm/sbus.h>
 #include <asm/sbi.h>
 #include <asm/tlbflush.h>
 #include <asm/cacheflush.h>
-- 
cgit v1.2.3


From 356d164757310cd822d71da2027d50ec39798b7f Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sat, 30 Aug 2008 00:36:11 -0700
Subject: sparc: Kill EBUS driver layer.

All that remains is the EBUS DMA programming library for
sparc64.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/Makefile      |   1 -
 arch/sparc/kernel/ebus.c        | 392 ----------------------------------------
 arch/sparc/kernel/pcic.c        |   8 +-
 arch/sparc/kernel/sparc_ksyms.c |   4 -
 4 files changed, 1 insertion(+), 404 deletions(-)
 delete mode 100644 arch/sparc/kernel/ebus.c

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index eaf7cf4296a..a430231647e 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -21,7 +21,6 @@ obj-$(CONFIG_PCI) += pcic.o
 obj-$(CONFIG_SUN4) += sun4setup.o
 obj-$(CONFIG_SMP) += trampoline.o smp.o sun4m_smp.o sun4d_smp.o
 obj-$(CONFIG_SUN_AUXIO) += auxio.o
-obj-$(CONFIG_PCI) += ebus.o
 obj-$(CONFIG_SUN_PM) += apc.o pmc.o
 obj-$(CONFIG_MODULES) += module.o sparc_ksyms.o
 obj-$(CONFIG_SPARC_LED) += led.o
diff --git a/arch/sparc/kernel/ebus.c b/arch/sparc/kernel/ebus.c
deleted file mode 100644
index 7e9397fc608..00000000000
--- a/arch/sparc/kernel/ebus.c
+++ /dev/null
@@ -1,392 +0,0 @@
-/*
- * ebus.c: PCI to EBus bridge device.
- *
- * Copyright (C) 1997  Eddie C. Dost  (ecd@skynet.be)
- *
- * Adopted for sparc by V. Roganov and G. Raiko.
- * Fixes for different platforms by Pete Zaitcev.
- */
-
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-
-#include <asm/system.h>
-#include <asm/page.h>
-#include <asm/pbm.h>
-#include <asm/ebus.h>
-#include <asm/io.h>
-#include <asm/oplib.h>
-#include <asm/prom.h>
-
-struct linux_ebus *ebus_chain = NULL;
-
-/* We are together with pcic.c under CONFIG_PCI. */
-extern unsigned int pcic_pin_to_irq(unsigned int, const char *name);
-
-/*
- * IRQ Blacklist
- * Here we list PROMs and systems that are known to supply crap as IRQ numbers.
- */
-struct ebus_device_irq {
-	char *name;
-	unsigned int pin;
-};
-
-struct ebus_system_entry {
-	char *esname;
-	struct ebus_device_irq *ipt;
-};
-
-static struct ebus_device_irq je1_1[] = {
-	{ "8042",		 3 },
-	{ "SUNW,CS4231",	 0 },
-	{ "parallel",		 0 },
-	{ "se",			 2 },
-	{ NULL, 0 }
-};
-
-/*
- * Gleb's JE1 supplied reasonable pin numbers, but mine did not (OBP 2.32).
- * Blacklist the sucker... Note that Gleb's system will work.
- */
-static struct ebus_system_entry ebus_blacklist[] = {
-	{ "SUNW,JavaEngine1", je1_1 },
-	{ NULL, NULL }
-};
-
-static struct ebus_device_irq *ebus_blackp = NULL;
-
-/*
- */
-static inline unsigned long ebus_alloc(size_t size)
-{
-	return (unsigned long)kmalloc(size, GFP_ATOMIC);
-}
-
-/*
- */
-static int __init ebus_blacklist_irq(const char *name)
-{
-	struct ebus_device_irq *dp;
-
-	if ((dp = ebus_blackp) != NULL) {
-		for (; dp->name != NULL; dp++) {
-			if (strcmp(name, dp->name) == 0) {
-				return pcic_pin_to_irq(dp->pin, name);
-			}
-		}
-	}
-	return 0;
-}
-
-static void __init fill_ebus_child(struct device_node *dp,
-				   struct linux_ebus_child *dev)
-{
-	const int *regs;
-	const int *irqs;
-	int i, len;
-
-	dev->prom_node = dp;
-	regs = of_get_property(dp, "reg", &len);
-	if (!regs)
-		len = 0;
-	dev->num_addrs = len / sizeof(regs[0]);
-
-	for (i = 0; i < dev->num_addrs; i++) {
-		if (regs[i] >= dev->parent->num_addrs) {
-			prom_printf("UGH: property for %s was %d, need < %d\n",
-				    dev->prom_node->name, len,
-				    dev->parent->num_addrs);
-			panic(__func__);
-		}
-
-		/* XXX resource */
-		dev->resource[i].start =
-			dev->parent->resource[regs[i]].start;
-	}
-
-	for (i = 0; i < PROMINTR_MAX; i++)
-		dev->irqs[i] = PCI_IRQ_NONE;
-
-	if ((dev->irqs[0] = ebus_blacklist_irq(dev->prom_node->name)) != 0) {
-		dev->num_irqs = 1;
-	} else {
-		irqs = of_get_property(dp, "interrupts", &len);
-		if (!irqs) {
-			dev->num_irqs = 0;
-			dev->irqs[0] = 0;
-			if (dev->parent->num_irqs != 0) {
-				dev->num_irqs = 1;
-				dev->irqs[0] = dev->parent->irqs[0];
-			}
-		} else {
-			dev->num_irqs = len / sizeof(irqs[0]);
-			if (irqs[0] == 0 || irqs[0] >= 8) {
-				/*
-				 * XXX Zero is a valid pin number...
-				 * This works as long as Ebus is not wired
-				 * to INTA#.
-				 */
-				printk("EBUS: %s got bad irq %d from PROM\n",
-				       dev->prom_node->name, irqs[0]);
-				dev->num_irqs = 0;
-				dev->irqs[0] = 0;
-			} else {
-				dev->irqs[0] =
-					pcic_pin_to_irq(irqs[0],
-							dev->prom_node->name);
-			}
-		}
-	}
-}
-
-static void __init fill_ebus_device(struct device_node *dp,
-				    struct linux_ebus_device *dev)
-{
-	const struct linux_prom_registers *regs;
-	struct linux_ebus_child *child;
-	struct dev_archdata *sd;
-	const int *irqs;
-	int i, n, len;
-	unsigned long baseaddr;
-
-	dev->prom_node = dp;
-
-	regs = of_get_property(dp, "reg", &len);
-	if (!regs)
-		len = 0;
-	if (len % sizeof(struct linux_prom_registers)) {
-		prom_printf("UGH: proplen for %s was %d, need multiple of %d\n",
-			    dev->prom_node->name, len,
-			    (int)sizeof(struct linux_prom_registers));
-		panic(__func__);
-	}
-	dev->num_addrs = len / sizeof(struct linux_prom_registers);
-
-	for (i = 0; i < dev->num_addrs; i++) {
-		/*
-		 * XXX Collect JE-1 PROM
-		 * 
-		 * Example - JS-E with 3.11:
-		 *  /ebus
-		 *      regs 
-		 *        0x00000000, 0x0, 0x00000000, 0x0, 0x00000000,
-		 *        0x82000010, 0x0, 0xf0000000, 0x0, 0x01000000,
-		 *        0x82000014, 0x0, 0x38800000, 0x0, 0x00800000,
-		 *      ranges
-		 *        0x00, 0x00000000, 0x02000010, 0x0, 0x0, 0x01000000,
-		 *        0x01, 0x01000000, 0x02000014, 0x0, 0x0, 0x00800000,
-		 *  /ebus/8042
-		 *      regs
-		 *        0x00000001, 0x00300060, 0x00000008,
-		 *        0x00000001, 0x00300060, 0x00000008,
-		 */
-		n = regs[i].which_io;
-		if (n >= 4) {
-			/* XXX This is copied from old JE-1 by Gleb. */
-			n = (regs[i].which_io - 0x10) >> 2;
-		} else {
-			;
-		}
-
-/*
- * XXX Now as we have regions, why don't we make an on-demand allocation...
- */
-		dev->resource[i].start = 0;
-		if ((baseaddr = dev->bus->self->resource[n].start +
-		    regs[i].phys_addr) != 0) {
-			/* dev->resource[i].name = dev->prom_name; */
-			if ((baseaddr = (unsigned long) ioremap(baseaddr,
-			    regs[i].reg_size)) == 0) {
-				panic("ebus: unable to remap dev %s",
-				      dev->prom_node->name);
-			}
-		}
-		dev->resource[i].start = baseaddr;	/* XXX Unaligned */
-	}
-
-	for (i = 0; i < PROMINTR_MAX; i++)
-		dev->irqs[i] = PCI_IRQ_NONE;
-
-	if ((dev->irqs[0] = ebus_blacklist_irq(dev->prom_node->name)) != 0) {
-		dev->num_irqs = 1;
-	} else {
-		irqs = of_get_property(dp, "interrupts", &len);
-		if (!irqs) {
-			dev->num_irqs = 0;
-			if ((dev->irqs[0] = dev->bus->self->irq) != 0) {
-				dev->num_irqs = 1;
-/* P3 */ /* printk("EBUS: child %s irq %d from parent\n", dev->prom_name, dev->irqs[0]); */
-			}
-		} else {
-			dev->num_irqs = 1;  /* dev->num_irqs = len / sizeof(irqs[0]); */
-			if (irqs[0] == 0 || irqs[0] >= 8) {
-				/* See above for the parent. XXX */
-				printk("EBUS: %s got bad irq %d from PROM\n",
-				       dev->prom_node->name, irqs[0]);
-				dev->num_irqs = 0;
-				dev->irqs[0] = 0;
-			} else {
-				dev->irqs[0] =
-					pcic_pin_to_irq(irqs[0],
-							dev->prom_node->name);
-			}
-		}
-	}
-
-	sd = &dev->ofdev.dev.archdata;
-	sd->prom_node = dp;
-	sd->op = &dev->ofdev;
-	sd->iommu = dev->bus->ofdev.dev.parent->archdata.iommu;
-
-	dev->ofdev.node = dp;
-	dev->ofdev.dev.parent = &dev->bus->ofdev.dev;
-	dev->ofdev.dev.bus = &ebus_bus_type;
-	sprintf(dev->ofdev.dev.bus_id, "ebus[%08x]", dp->node);
-
-	/* Register with core */
-	if (of_device_register(&dev->ofdev) != 0)
-		printk(KERN_DEBUG "ebus: device registration error for %s!\n",
-		       dp->path_component_name);
-
-	if ((dp = dp->child) != NULL) {
-		dev->children = (struct linux_ebus_child *)
-			ebus_alloc(sizeof(struct linux_ebus_child));
-
-		child = dev->children;
-		child->next = NULL;
-		child->parent = dev;
-		child->bus = dev->bus;
-		fill_ebus_child(dp, child);
-
-		while ((dp = dp->sibling) != NULL) {
-			child->next = (struct linux_ebus_child *)
-				ebus_alloc(sizeof(struct linux_ebus_child));
-
-			child = child->next;
-			child->next = NULL;
-			child->parent = dev;
-			child->bus = dev->bus;
-			fill_ebus_child(dp, child);
-		}
-	}
-}
-
-void __init ebus_init(void)
-{
-	const struct linux_prom_pci_registers *regs;
-	struct linux_pbm_info *pbm;
-	struct linux_ebus_device *dev;
-	struct linux_ebus *ebus;
-	struct ebus_system_entry *sp;
-	struct pci_dev *pdev;
-	struct pcidev_cookie *cookie;
-	struct device_node *dp;
-	struct resource *p;
-	unsigned short pci_command;
-	int len, reg, nreg;
-	int num_ebus = 0;
-
-	dp = of_find_node_by_path("/");
-	for (sp = ebus_blacklist; sp->esname != NULL; sp++) {
-		if (strcmp(dp->name, sp->esname) == 0) {
-			ebus_blackp = sp->ipt;
-			break;
-		}
-	}
-
-	pdev = pci_get_device(PCI_VENDOR_ID_SUN, PCI_DEVICE_ID_SUN_EBUS, NULL);
-	if (!pdev)
-		return;
-
-	cookie = pdev->sysdata;
-	dp = cookie->prom_node;
-
-	ebus_chain = ebus = (struct linux_ebus *)
-			ebus_alloc(sizeof(struct linux_ebus));
-	ebus->next = NULL;
-
-	while (dp) {
-		struct device_node *nd;
-
-		ebus->prom_node = dp;
-		ebus->self = pdev;
-		ebus->parent = pbm = cookie->pbm;
-
-		/* Enable BUS Master. */
-		pci_read_config_word(pdev, PCI_COMMAND, &pci_command);
-		pci_command |= PCI_COMMAND_MASTER;
-		pci_write_config_word(pdev, PCI_COMMAND, pci_command);
-
-		regs = of_get_property(dp, "reg", &len);
-		if (!regs) {
-			prom_printf("%s: can't find reg property\n",
-				    __func__);
-			prom_halt();
-		}
-		nreg = len / sizeof(struct linux_prom_pci_registers);
-
-		p = &ebus->self->resource[0];
-		for (reg = 0; reg < nreg; reg++) {
-			if (!(regs[reg].which_io & 0x03000000))
-				continue;
-
-			(p++)->start = regs[reg].phys_lo;
-		}
-
-		ebus->ofdev.node = dp;
-		ebus->ofdev.dev.parent = &pdev->dev;
-		ebus->ofdev.dev.bus = &ebus_bus_type;
-		sprintf(ebus->ofdev.dev.bus_id, "ebus%d", num_ebus);
-
-		/* Register with core */
-		if (of_device_register(&ebus->ofdev) != 0)
-			printk(KERN_DEBUG "ebus: device registration error for %s!\n",
-			       dp->path_component_name);
-
-
-		nd = dp->child;
-		if (!nd)
-			goto next_ebus;
-
-		ebus->devices = (struct linux_ebus_device *)
-				ebus_alloc(sizeof(struct linux_ebus_device));
-
-		dev = ebus->devices;
-		dev->next = NULL;
-		dev->children = NULL;
-		dev->bus = ebus;
-		fill_ebus_device(nd, dev);
-
-		while ((nd = nd->sibling) != NULL) {
-			dev->next = (struct linux_ebus_device *)
-				ebus_alloc(sizeof(struct linux_ebus_device));
-
-			dev = dev->next;
-			dev->next = NULL;
-			dev->children = NULL;
-			dev->bus = ebus;
-			fill_ebus_device(nd, dev);
-		}
-
-	next_ebus:
-		pdev = pci_get_device(PCI_VENDOR_ID_SUN,
-				       PCI_DEVICE_ID_SUN_EBUS, pdev);
-		if (!pdev)
-			break;
-
-		cookie = pdev->sysdata;
-		dp = cookie->prom_node;
-
-		ebus->next = (struct linux_ebus *)
-			ebus_alloc(sizeof(struct linux_ebus));
-		ebus = ebus->next;
-		ebus->next = NULL;
-		++num_ebus;
-	}
-	if (pdev)
-		pci_dev_put(pdev);
-}
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index 9a0aa4ec579..e5950b03df1 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -17,7 +17,6 @@
 #include <linux/slab.h>
 #include <linux/jiffies.h>
 
-#include <asm/ebus.h>
 #include <asm/swift.h> /* for cache flushing. */
 #include <asm/io.h>
 
@@ -429,7 +428,6 @@ static int __init pcic_init(void)
 
 	pcic_pbm_scan_bus(pcic);
 
-	ebus_init();
 	return 0;
 }
 
@@ -492,10 +490,6 @@ static void pcic_map_pci_device(struct linux_pcic *pcic,
 				 * do ioremap() before accessing PC-style I/O,
 				 * we supply virtual, ready to access address.
 				 *
-				 * Ebus devices do not come here even if
-				 * CheerIO makes a similar conversion.
-				 * See ebus.c for details.
-				 *
 				 * Note that request_region()
 				 * works for these devices.
 				 *
@@ -676,7 +670,7 @@ void __devinit pcibios_fixup_bus(struct pci_bus *bus)
 }
 
 /*
- * pcic_pin_to_irq() is exported to ebus.c.
+ * pcic_pin_to_irq() is exported to bus probing code
  */
 unsigned int
 pcic_pin_to_irq(unsigned int pin, const char *name)
diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index 50ec48ddef6..6007ac5a736 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -45,9 +45,6 @@
 #ifdef CONFIG_SBUS
 #include <asm/dma.h>
 #endif
-#ifdef CONFIG_PCI
-#include <asm/ebus.h>
-#endif
 #include <asm/io-unit.h>
 #include <asm/bug.h>
 
@@ -152,7 +149,6 @@ EXPORT_SYMBOL(BTFIXUP_CALL(pgprot_noncached));
 EXPORT_SYMBOL(sbus_set_sbus64);
 #endif
 #ifdef CONFIG_PCI
-EXPORT_SYMBOL(ebus_chain);
 EXPORT_SYMBOL(insb);
 EXPORT_SYMBOL(outsb);
 EXPORT_SYMBOL(insw);
-- 
cgit v1.2.3


From e0ac612e6997429a21887475709ca6d6224971f2 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sat, 30 Aug 2008 00:37:36 -0700
Subject: sparc: Kill ebus_bus_type.

No longer used.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/of_device.c | 10 ----------
 1 file changed, 10 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/of_device.c b/arch/sparc/kernel/of_device.c
index 576fa2ffa69..c59014886af 100644
--- a/arch/sparc/kernel/of_device.c
+++ b/arch/sparc/kernel/of_device.c
@@ -62,11 +62,6 @@ void of_propagate_archdata(struct of_device *bus)
 	}
 }
 
-#ifdef CONFIG_PCI
-struct bus_type ebus_bus_type;
-EXPORT_SYMBOL(ebus_bus_type);
-#endif
-
 struct bus_type of_platform_bus_type;
 EXPORT_SYMBOL(of_platform_bus_type);
 
@@ -584,11 +579,6 @@ static int __init of_bus_driver_init(void)
 	int err;
 
 	err = of_bus_type_init(&of_platform_bus_type, "of");
-#ifdef CONFIG_PCI
-	if (!err)
-		err = of_bus_type_init(&ebus_bus_type, "ebus");
-#endif
-
 	if (!err)
 		scan_of_devices();
 
-- 
cgit v1.2.3


From fd098316ef533e8441576f020ead4beab93154ce Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sun, 31 Aug 2008 01:23:17 -0700
Subject: sparc: Annotate of_device_id arrays with const or __initdata.

As suggested by Stephen Rothwell.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/apc.c  | 2 +-
 arch/sparc/kernel/pmc.c  | 2 +-
 arch/sparc/kernel/time.c | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/apc.c b/arch/sparc/kernel/apc.c
index 0a20cd85fd3..4dd1ba752ce 100644
--- a/arch/sparc/kernel/apc.c
+++ b/arch/sparc/kernel/apc.c
@@ -182,7 +182,7 @@ static int __devinit apc_probe(struct of_device *op,
 	return 0;
 }
 
-static struct of_device_id apc_match[] = {
+static struct of_device_id __initdata apc_match[] = {
 	{
 		.name = APC_OBPNAME,
 	},
diff --git a/arch/sparc/kernel/pmc.c b/arch/sparc/kernel/pmc.c
index 9976e82e323..814eb3ce039 100644
--- a/arch/sparc/kernel/pmc.c
+++ b/arch/sparc/kernel/pmc.c
@@ -72,7 +72,7 @@ static int __devinit pmc_probe(struct of_device *op,
 	return 0;
 }
 
-static struct of_device_id pmc_match[] = {
+static struct of_device_id __initdata pmc_match[] = {
 	{
 		.name = PMC_OBPNAME,
 	},
diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c
index a713bb43db8..339c4762fbc 100644
--- a/arch/sparc/kernel/time.c
+++ b/arch/sparc/kernel/time.c
@@ -338,7 +338,7 @@ static int __devinit clock_probe(struct of_device *op, const struct of_device_id
 	return 0;
 }
 
-static struct of_device_id clock_match[] = {
+static struct of_device_id __initdata clock_match[] = {
 	{
 		.name = "eeprom",
 	},
-- 
cgit v1.2.3


From 5110bd21b8af4199b8332c0ab0b23367556653d3 Mon Sep 17 00:00:00 2001
From: Adrian Bunk <bunk@kernel.org>
Date: Sun, 31 Aug 2008 20:59:37 -0700
Subject: sparc: remove CONFIG_SUN4

While doing some easy cleanups on the sparc code I noticed that the
CONFIG_SUN4 code seems to be worse than the rest - there were some
"I don't know how it should work, but the current code definitely cannot
work." places.

And while I have seen people running Linux on machines like a
SPARCstation 5 a few years ago I don't recall having seen sun4
machines, even less ones running Linux.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/Makefile    |   1 -
 arch/sparc/kernel/devices.c   |   2 +-
 arch/sparc/kernel/entry.S     |  54 --------------
 arch/sparc/kernel/head.S      |  28 +-------
 arch/sparc/kernel/idprom.c    |   7 --
 arch/sparc/kernel/process.c   |   2 +-
 arch/sparc/kernel/prom.c      |   1 -
 arch/sparc/kernel/setup.c     |   8 +--
 arch/sparc/kernel/sun4c_irq.c |  58 +++++----------
 arch/sparc/kernel/sun4setup.c |  75 -------------------
 arch/sparc/kernel/sys_sparc.c |   8 +--
 arch/sparc/kernel/time.c      | 162 +-----------------------------------------
 12 files changed, 27 insertions(+), 379 deletions(-)
 delete mode 100644 arch/sparc/kernel/sun4setup.c

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/Makefile b/arch/sparc/kernel/Makefile
index a430231647e..2d658209509 100644
--- a/arch/sparc/kernel/Makefile
+++ b/arch/sparc/kernel/Makefile
@@ -18,7 +18,6 @@ obj-y    := entry.o wof.o wuf.o etrap.o rtrap.o traps.o $(IRQ_OBJS) \
 devres-y = ../../../kernel/irq/devres.o
 
 obj-$(CONFIG_PCI) += pcic.o
-obj-$(CONFIG_SUN4) += sun4setup.o
 obj-$(CONFIG_SMP) += trampoline.o smp.o sun4m_smp.o sun4d_smp.o
 obj-$(CONFIG_SUN_AUXIO) += auxio.o
 obj-$(CONFIG_SUN_PM) += apc.o pmc.o
diff --git a/arch/sparc/kernel/devices.c b/arch/sparc/kernel/devices.c
index b240b8863fd..ad656b044b8 100644
--- a/arch/sparc/kernel/devices.c
+++ b/arch/sparc/kernel/devices.c
@@ -143,7 +143,7 @@ void __init device_scan(void)
 #endif
 	clock_stop_probe();
 
-	if (ARCH_SUN4C_SUN4)
+	if (ARCH_SUN4C)
 		sun4c_probe_memerr_reg();
 
 	return;
diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index e8cdf715a54..68689facaaa 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -20,11 +20,7 @@
 #include <asm/memreg.h>
 #include <asm/page.h>
 #include <asm/pgtable.h>
-#ifdef CONFIG_SUN4
-#include <asm/pgtsun4.h>
-#else
 #include <asm/pgtsun4c.h>
-#endif
 #include <asm/winmacro.h>
 #include <asm/signal.h>
 #include <asm/obio.h>
@@ -775,11 +771,7 @@ vac_linesize_patch_32:		subcc	%l7, 32, %l7
  * Ugly, but we cant use hardware flushing on the sun4 and we'd require
  * two instructions (Anton)
  */
-#ifdef CONFIG_SUN4
-vac_hwflush_patch1_on:		nop
-#else
 vac_hwflush_patch1_on:		addcc	%l7, -PAGE_SIZE, %l7
-#endif
 
 vac_hwflush_patch2_on:		sta	%g0, [%l3 + %l7] ASI_HWFLUSHSEG
 
@@ -798,42 +790,10 @@ vac_hwflush_patch2_on:		sta	%g0, [%l3 + %l7] ASI_HWFLUSHSEG
 ! %l7 = 1 for textfault
 ! We want error in %l5, vaddr in %l6
 sun4c_fault:
-#ifdef CONFIG_SUN4
-	sethi	%hi(sun4c_memerr_reg), %l4
-	ld	[%l4+%lo(sun4c_memerr_reg)], %l4  ! memerr ctrl reg addr
-	ld	[%l4], %l6		! memerr ctrl reg
-	ld	[%l4 + 4], %l5		! memerr vaddr reg
-	andcc	%l6, 0x80, %g0		! check for error type
-	st	%g0, [%l4 + 4]		! clear the error
-	be	0f			! normal error
-	 sethi	%hi(AC_BUS_ERROR), %l4	! bus err reg addr
-
-	call	prom_halt	! something weird happened
-					! what exactly did happen?
-					! what should we do here?
-
-0:	or	%l4, %lo(AC_BUS_ERROR), %l4	! bus err reg addr
-	lduba	[%l4] ASI_CONTROL, %l6	! bus err reg
-
-	cmp    %l7, 1			! text fault?
-	be	1f			! yes
-	 nop
-
-	ld     [%l1], %l4		! load instruction that caused fault
-	srl	%l4, 21, %l4
-	andcc	%l4, 1, %g0		! store instruction?
-
-	be	1f			! no
-	 sethi	%hi(SUN4C_SYNC_BADWRITE), %l4 ! yep
-					! %lo(SUN4C_SYNC_BADWRITE) = 0
-	or	%l4, %l6, %l6		! set write bit to emulate sun4c
-1:
-#else
 	sethi	%hi(AC_SYNC_ERR), %l4
 	add	%l4, 0x4, %l6			! AC_SYNC_VA in %l6
 	lda	[%l6] ASI_CONTROL, %l5		! Address
 	lda	[%l4] ASI_CONTROL, %l6		! Error, retained for a bit
-#endif
 
 	andn	%l5, 0xfff, %l5			! Encode all info into l7
 	srl	%l6, 14, %l4
@@ -880,12 +840,7 @@ sun4c_fault:
 	or      %l4, %lo(swapper_pg_dir), %l4
 	sll     %l6, 2, %l6
 	ld      [%l4 + %l6], %l4
-#ifdef CONFIG_SUN4
-	sethi	%hi(PAGE_MASK), %l6
-	andcc	%l4, %l6, %g0
-#else
 	andcc   %l4, PAGE_MASK, %g0
-#endif
 	be      sun4c_fault_fromuser
 	 lduXa  [%l5] ASI_SEGMAP, %l4
 
@@ -937,11 +892,7 @@ invalid_segment_patch1:
 	ld	[%l6 + 0x08], %l3	! tmp = entry->vaddr
 
 	! Flush segment from the cache.
-#ifdef CONFIG_SUN4
-	sethi	%hi((128 * 1024)), %l7
-#else
 	sethi	%hi((64 * 1024)), %l7
-#endif
 9:
 vac_hwflush_patch1:
 vac_linesize_patch:
@@ -1029,12 +980,7 @@ invalid_segment_patch2:
 	or	%l4, %lo(swapper_pg_dir), %l4
 	sll	%l3, 2, %l3
 	ld	[%l4 + %l3], %l4
-#ifndef CONFIG_SUN4
 	and	%l4, PAGE_MASK, %l4
-#else
-	sethi	%hi(PAGE_MASK), %l6
-	and	%l4, %l6, %l4
-#endif
 
 	srl	%l5, (PAGE_SHIFT - 2), %l6
 	and	%l6, ((SUN4C_PTRS_PER_PTE - 1) << 2), %l6
diff --git a/arch/sparc/kernel/head.S b/arch/sparc/kernel/head.S
index 50d9a16af79..2d325fd8457 100644
--- a/arch/sparc/kernel/head.S
+++ b/arch/sparc/kernel/head.S
@@ -63,15 +63,9 @@ cputypvar_sun4m:
 
 	.align 4
 
-#ifndef CONFIG_SUN4
 sun4_notsup:
-	.asciz	"Sparc-Linux sun4 needs a specially compiled kernel, turn CONFIG_SUN4 on.\n\n"
+	.asciz	"Sparc-Linux sun4 support does no longer exist.\n\n"
 	.align 4
-#else
-sun4cdm_notsup:
-	.asciz	"Kernel compiled with CONFIG_SUN4 cannot run on SUN4C/SUN4M/SUN4D\nTurn CONFIG_SUN4 off.\n\n"
-	.align 4
-#endif
 
 sun4e_notsup:
         .asciz  "Sparc-Linux sun4e support does not exist\n\n"
@@ -780,15 +774,6 @@ execute_in_high_mem:
 		 nop
 
 found_version:
-#ifdef CONFIG_SUN4
-/* For people who try sun4 kernels, even if Configure.help advises them. */
-		ld	[%g7 + 0x68], %o1
-		set	sun4cdm_notsup, %o0
-		call	%o1
-		 nop
-		b	halt_me
-		 nop
-#endif
 /* Get the machine type via the mysterious romvec node operations. */
 
 		add	%g7, 0x1c, %l1		
@@ -1150,15 +1135,6 @@ sun4c_continue_boot:
 		 nop
 
 sun4_init:
-#ifdef CONFIG_SUN4
-/* There, happy now Adrian? */
-		set	cputypval, %o2		! Let everyone know we
-		set	' ', %o0			! are a "sun4 " architecture
-		stb	%o0, [%o2 + 0x4]		
-
-		b got_prop 
-		 nop
-#else
 		sethi   %hi(SUN4_PROM_VECTOR+0x84), %o1
 		ld      [%o1 + %lo(SUN4_PROM_VECTOR+0x84)], %o1
 		set     sun4_notsup, %o0
@@ -1170,7 +1146,7 @@ sun4_init:
 		 nop
 1:		ba      1b                      ! Cannot exit into KMON
 		 nop
-#endif
+
 no_sun4e_here:
 		ld	[%g7 + 0x68], %o1
 		set	sun4e_notsup, %o0
diff --git a/arch/sparc/kernel/idprom.c b/arch/sparc/kernel/idprom.c
index fc511f3c4c1..223a6582e1e 100644
--- a/arch/sparc/kernel/idprom.c
+++ b/arch/sparc/kernel/idprom.c
@@ -12,10 +12,6 @@
 #include <asm/oplib.h>
 #include <asm/idprom.h>
 #include <asm/machines.h>  /* Fun with Sun released architectures. */
-#ifdef CONFIG_SUN4
-#include <asm/sun4paddr.h>
-extern void sun4setup(void);
-#endif
 
 struct idprom *idprom;
 static struct idprom idprom_buffer;
@@ -101,7 +97,4 @@ void __init idprom_init(void)
 		    idprom->id_ethaddr[0], idprom->id_ethaddr[1],
 		    idprom->id_ethaddr[2], idprom->id_ethaddr[3],
 		    idprom->id_ethaddr[4], idprom->id_ethaddr[5]);
-#ifdef CONFIG_SUN4
-	sun4setup();
-#endif
 }
diff --git a/arch/sparc/kernel/process.c b/arch/sparc/kernel/process.c
index 4bb430940a6..e8c43ffe317 100644
--- a/arch/sparc/kernel/process.c
+++ b/arch/sparc/kernel/process.c
@@ -75,7 +75,7 @@ void cpu_idle(void)
 {
 	/* endless idle loop with no priority at all */
 	for (;;) {
-		if (ARCH_SUN4C_SUN4) {
+		if (ARCH_SUN4C) {
 			static int count = HZ;
 			static unsigned long last_jiffies;
 			static unsigned long last_faults;
diff --git a/arch/sparc/kernel/prom.c b/arch/sparc/kernel/prom.c
index 43e86240682..eee5efcfe50 100644
--- a/arch/sparc/kernel/prom.c
+++ b/arch/sparc/kernel/prom.c
@@ -442,7 +442,6 @@ static void __init of_console_init(void)
 
 	switch (prom_vers) {
 	case PROM_V0:
-	case PROM_SUN4:
 		skip = 0;
 		switch (*romvec->pv_stdout) {
 		case PROMDEV_SCREEN:
diff --git a/arch/sparc/kernel/setup.c b/arch/sparc/kernel/setup.c
index 9e451b21202..8d5fbce1635 100644
--- a/arch/sparc/kernel/setup.c
+++ b/arch/sparc/kernel/setup.c
@@ -224,12 +224,6 @@ void __init setup_arch(char **cmdline_p)
 	if(!strcmp(&cputypval,"sun4e")) { sparc_cpu_model=sun4e; }
 	if(!strcmp(&cputypval,"sun4u")) { sparc_cpu_model=sun4u; }
 
-#ifdef CONFIG_SUN4
-	if (sparc_cpu_model != sun4) {
-		prom_printf("This kernel is for Sun4 architecture only.\n");
-		prom_halt();
-	}
-#endif
 	printk("ARCH: ");
 	switch(sparc_cpu_model) {
 	case sun4:
@@ -263,7 +257,7 @@ void __init setup_arch(char **cmdline_p)
 	boot_flags_init(*cmdline_p);
 
 	idprom_init();
-	if (ARCH_SUN4C_SUN4)
+	if (ARCH_SUN4C)
 		sun4c_probe_vac();
 	load_mmu();
 
diff --git a/arch/sparc/kernel/sun4c_irq.c b/arch/sparc/kernel/sun4c_irq.c
index a74582455cc..722d2516f28 100644
--- a/arch/sparc/kernel/sun4c_irq.c
+++ b/arch/sparc/kernel/sun4c_irq.c
@@ -33,7 +33,6 @@
 #include <asm/traps.h>
 #include <asm/irq.h>
 #include <asm/io.h>
-#include <asm/sun4paddr.h>
 #include <asm/idprom.h>
 #include <asm/machines.h>
 
@@ -130,22 +129,10 @@ static void sun4c_enable_irq(unsigned int irq_nr)
 
 volatile struct sun4c_timer_info *sun4c_timers;
 
-#ifdef CONFIG_SUN4
-/* This is an ugly hack to work around the
-   current timer code, and make it work with 
-   the sun4/260 intersil 
-   */
-volatile struct sun4c_timer_info sun4_timer;
-#endif
-
 static void sun4c_clear_clock_irq(void)
 {
 	volatile unsigned int clear_intr;
-#ifdef CONFIG_SUN4
-	if (idprom->id_machtype == (SM_SUN4 | SM_4_260)) 
-	  clear_intr = sun4_timer.timer_limit10;
-	else
-#endif
+
 	clear_intr = sun4c_timers->timer_limit10;
 }
 
@@ -166,11 +153,6 @@ static void __init sun4c_init_timers(irq_handler_t counter_fn)
 	/* Map the Timer chip, this is implemented in hardware inside
 	 * the cache chip on the sun4c.
 	 */
-#ifdef CONFIG_SUN4
-	if (idprom->id_machtype == (SM_SUN4 | SM_4_260))
-		sun4c_timers = &sun4_timer;
-	else
-#endif
 	sun4c_timers = ioremap(SUN_TIMER_PHYSADDR,
 	    sizeof(struct sun4c_timer_info));
 
@@ -206,28 +188,22 @@ void __init sun4c_init_IRQ(void)
 {
 	struct linux_prom_registers int_regs[2];
 	int ie_node;
-
-	if (ARCH_SUN4) {
-		interrupt_enable = (char *)
-		    ioremap(sun4_ie_physaddr, PAGE_SIZE);
-	} else {
-		struct resource phyres;
-
-		ie_node = prom_searchsiblings (prom_getchild(prom_root_node),
-				       	"interrupt-enable");
-		if(ie_node == 0)
-			panic("Cannot find /interrupt-enable node");
-
-		/* Depending on the "address" property is bad news... */
-		interrupt_enable = NULL;
-		if (prom_getproperty(ie_node, "reg", (char *) int_regs,
-				     sizeof(int_regs)) != -1) {
-			memset(&phyres, 0, sizeof(struct resource));
-			phyres.flags = int_regs[0].which_io;
-			phyres.start = int_regs[0].phys_addr;
-			interrupt_enable = (char *) of_ioremap(&phyres, 0,
-			    int_regs[0].reg_size, "sun4c_intr");
-		}
+	struct resource phyres;
+
+	ie_node = prom_searchsiblings (prom_getchild(prom_root_node),
+				       "interrupt-enable");
+	if(ie_node == 0)
+		panic("Cannot find /interrupt-enable node");
+
+	/* Depending on the "address" property is bad news... */
+	interrupt_enable = NULL;
+	if (prom_getproperty(ie_node, "reg", (char *) int_regs,
+			     sizeof(int_regs)) != -1) {
+		memset(&phyres, 0, sizeof(struct resource));
+		phyres.flags = int_regs[0].which_io;
+		phyres.start = int_regs[0].phys_addr;
+		interrupt_enable = (char *) of_ioremap(&phyres, 0,
+		    int_regs[0].reg_size, "sun4c_intr");
 	}
 	if (!interrupt_enable)
 		panic("Cannot map interrupt_enable");
diff --git a/arch/sparc/kernel/sun4setup.c b/arch/sparc/kernel/sun4setup.c
deleted file mode 100644
index 229a52f55f1..00000000000
--- a/arch/sparc/kernel/sun4setup.c
+++ /dev/null
@@ -1,75 +0,0 @@
-/* sun4setup.c: Setup the hardware address of various items in the sun4
- * 		architecture. Called from idprom_init
- *
- * Copyright (C) 1998 Chris G. Davis (cdavis@cois.on.ca)
- */
-
-#include <asm/page.h>
-#include <asm/oplib.h>
-#include <asm/idprom.h>
-#include <asm/sun4paddr.h>
-#include <asm/machines.h>
-
-int sun4_memreg_physaddr;
-int sun4_ie_physaddr;
-int sun4_clock_physaddr;
-int sun4_timer_physaddr;
-int sun4_eth_physaddr;
-int sun4_si_physaddr;
-int sun4_bwtwo_physaddr;
-int sun4_zs0_physaddr;
-int sun4_zs1_physaddr;
-int sun4_dma_physaddr;
-int sun4_esp_physaddr;
-int sun4_ie_physaddr; 
-
-void __init sun4setup(void)
-{
-	printk("Sun4 Hardware Setup v1.0 18/May/98 Chris Davis (cdavis@cois.on.ca). ");
-	/*
-	  setup standard sun4 info
-	  */
-	sun4_ie_physaddr=SUN4_IE_PHYSADDR;
-
-	/*
-	  setup model specific info
-	  */
-	switch(idprom->id_machtype) {
-		case (SM_SUN4 | SM_4_260 ):
-			printk("Setup for a SUN4/260\n");
-			sun4_memreg_physaddr=SUN4_200_MEMREG_PHYSADDR;
-			sun4_clock_physaddr=SUN4_200_CLOCK_PHYSADDR;
-			sun4_timer_physaddr=SUN4_UNUSED_PHYSADDR;
-			sun4_eth_physaddr=SUN4_200_ETH_PHYSADDR;
-			sun4_si_physaddr=SUN4_200_SI_PHYSADDR;
-			sun4_bwtwo_physaddr=SUN4_200_BWTWO_PHYSADDR;
-			sun4_dma_physaddr=SUN4_UNUSED_PHYSADDR;
-			sun4_esp_physaddr=SUN4_UNUSED_PHYSADDR;
-			break;
-		case (SM_SUN4 | SM_4_330 ):
-			printk("Setup for a SUN4/330\n");
-			sun4_memreg_physaddr=SUN4_300_MEMREG_PHYSADDR;
-			sun4_clock_physaddr=SUN4_300_CLOCK_PHYSADDR;
-			sun4_timer_physaddr=SUN4_300_TIMER_PHYSADDR;
-			sun4_eth_physaddr=SUN4_300_ETH_PHYSADDR;
-			sun4_si_physaddr=SUN4_UNUSED_PHYSADDR;
-			sun4_bwtwo_physaddr=SUN4_300_BWTWO_PHYSADDR;
-			sun4_dma_physaddr=SUN4_300_DMA_PHYSADDR;
-			sun4_esp_physaddr=SUN4_300_ESP_PHYSADDR;
-			break;
-		case (SM_SUN4 | SM_4_470 ):
-			printk("Setup for a SUN4/470\n");
-			sun4_memreg_physaddr=SUN4_400_MEMREG_PHYSADDR;
-			sun4_clock_physaddr=SUN4_400_CLOCK_PHYSADDR;
-			sun4_timer_physaddr=SUN4_400_TIMER_PHYSADDR;
-			sun4_eth_physaddr=SUN4_400_ETH_PHYSADDR;
-			sun4_si_physaddr=SUN4_UNUSED_PHYSADDR;
-			sun4_bwtwo_physaddr=SUN4_400_BWTWO_PHYSADDR;
-			sun4_dma_physaddr=SUN4_400_DMA_PHYSADDR;
-			sun4_esp_physaddr=SUN4_400_ESP_PHYSADDR;
-			break;
-		default:
-			;
-	}
-}
-
diff --git a/arch/sparc/kernel/sys_sparc.c b/arch/sparc/kernel/sys_sparc.c
index 4d73421559c..03035c852a4 100644
--- a/arch/sparc/kernel/sys_sparc.c
+++ b/arch/sparc/kernel/sys_sparc.c
@@ -53,7 +53,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 	/* See asm-sparc/uaccess.h */
 	if (len > TASK_SIZE - PAGE_SIZE)
 		return -ENOMEM;
-	if (ARCH_SUN4C_SUN4 && len > 0x20000000)
+	if (ARCH_SUN4C && len > 0x20000000)
 		return -ENOMEM;
 	if (!addr)
 		addr = TASK_UNMAPPED_BASE;
@@ -65,7 +65,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 
 	for (vmm = find_vma(current->mm, addr); ; vmm = vmm->vm_next) {
 		/* At this point:  (!vmm || addr < vmm->vm_end). */
-		if (ARCH_SUN4C_SUN4 && addr < 0xe0000000 && 0x20000000 - len < addr) {
+		if (ARCH_SUN4C && addr < 0xe0000000 && 0x20000000 - len < addr) {
 			addr = PAGE_OFFSET;
 			vmm = find_vma(current->mm, PAGE_OFFSET);
 		}
@@ -81,7 +81,7 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
 
 asmlinkage unsigned long sparc_brk(unsigned long brk)
 {
-	if(ARCH_SUN4C_SUN4) {
+	if(ARCH_SUN4C) {
 		if ((brk & 0xe0000000) != (current->mm->brk & 0xe0000000))
 			return current->mm->brk;
 	}
@@ -221,7 +221,7 @@ out:
 
 int sparc_mmap_check(unsigned long addr, unsigned long len)
 {
-	if (ARCH_SUN4C_SUN4 &&
+	if (ARCH_SUN4C &&
 	    (len > 0x20000000 ||
 	     (addr < 0xe0000000 && addr + len > 0x20000000)))
 		return -EINVAL;
diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c
index 339c4762fbc..f0a2874b04e 100644
--- a/arch/sparc/kernel/time.c
+++ b/arch/sparc/kernel/time.c
@@ -39,7 +39,6 @@
 #include <asm/io.h>
 #include <asm/idprom.h>
 #include <asm/machines.h>
-#include <asm/sun4paddr.h>
 #include <asm/page.h>
 #include <asm/pcic.h>
 #include <asm/irq_regs.h>
@@ -54,27 +53,6 @@ static struct mostek48t08 __iomem *mstk48t08_regs = NULL;
 static int set_rtc_mmss(unsigned long);
 static int sbus_do_settimeofday(struct timespec *tv);
 
-#ifdef CONFIG_SUN4
-struct intersil *intersil_clock;
-#define intersil_cmd(intersil_reg, intsil_cmd) intersil_reg->int_cmd_reg = \
-	(intsil_cmd)
-
-#define intersil_intr(intersil_reg, intsil_cmd) intersil_reg->int_intr_reg = \
-	(intsil_cmd)
-
-#define intersil_start(intersil_reg) intersil_cmd(intersil_reg, \
-	( INTERSIL_START | INTERSIL_32K | INTERSIL_NORMAL | INTERSIL_24H |\
-	  INTERSIL_INTR_ENABLE))
-
-#define intersil_stop(intersil_reg) intersil_cmd(intersil_reg, \
-	( INTERSIL_STOP | INTERSIL_32K | INTERSIL_NORMAL | INTERSIL_24H |\
-	  INTERSIL_INTR_ENABLE))
-
-#define intersil_read_intr(intersil_reg, towhere) towhere = \
-	intersil_reg->int_intr_reg
-
-#endif
-
 unsigned long profile_pc(struct pt_regs *regs)
 {
 	extern char __copy_user_begin[], __copy_user_end[];
@@ -117,15 +95,7 @@ static irqreturn_t timer_interrupt(int dummy, void *dev_id)
 
 	/* Protect counter clear so that do_gettimeoffset works */
 	write_seqlock(&xtime_lock);
-#ifdef CONFIG_SUN4
-	if((idprom->id_machtype == (SM_SUN4 | SM_4_260)) ||
-	   (idprom->id_machtype == (SM_SUN4 | SM_4_110))) {
-		int temp;
-        	intersil_read_intr(intersil_clock, temp);
-		/* re-enable the irq */
-		enable_pil_irq(10);
-	}
-#endif
+
 	clear_clock_irq();
 
 	do_timer(1);
@@ -250,55 +220,6 @@ static void __devinit mostek_set_system_time(void)
 	spin_unlock_irq(&mostek_lock);
 }
 
-/* Probe for the real time clock chip on Sun4 */
-static inline void sun4_clock_probe(void)
-{
-#ifdef CONFIG_SUN4
-	int temp;
-	struct resource r;
-
-	memset(&r, 0, sizeof(r));
-	if( idprom->id_machtype == (SM_SUN4 | SM_4_330) ) {
-		sp_clock_typ = MSTK48T02;
-		r.start = sun4_clock_physaddr;
-		mstk48t02_regs = of_ioremap(&r, 0,
-				       sizeof(struct mostek48t02), NULL);
-		mstk48t08_regs = NULL;  /* To catch weirdness */
-		intersil_clock = NULL;  /* just in case */
-
-		/* Kick start the clock if it is completely stopped. */
-		if (mostek_read(mstk48t02_regs + MOSTEK_SEC) & MSTK_STOP)
-			kick_start_clock();
-	} else if( idprom->id_machtype == (SM_SUN4 | SM_4_260)) {
-		/* intersil setup code */
-		printk("Clock: INTERSIL at %8x ",sun4_clock_physaddr);
-		sp_clock_typ = INTERSIL;
-		r.start = sun4_clock_physaddr;
-		intersil_clock = (struct intersil *) 
-		    of_ioremap(&r, 0, sizeof(*intersil_clock), "intersil");
-		mstk48t02_regs = 0;  /* just be sure */
-		mstk48t08_regs = NULL;  /* ditto */
-		/* initialise the clock */
-
-		intersil_intr(intersil_clock,INTERSIL_INT_100HZ);
-
-		intersil_start(intersil_clock);
-
-		intersil_read_intr(intersil_clock, temp);
-                while (!(temp & 0x80))
-                        intersil_read_intr(intersil_clock, temp);
-
-                intersil_read_intr(intersil_clock, temp);
-                while (!(temp & 0x80))
-                        intersil_read_intr(intersil_clock, temp);
-
-		intersil_stop(intersil_clock);
-
-	}
-#endif
-}
-
-#ifndef CONFIG_SUN4
 static int __devinit clock_probe(struct of_device *op, const struct of_device_id *match)
 {
 	struct device_node *dp = op->node;
@@ -365,7 +286,6 @@ static int __init clock_init(void)
  * need to see the clock registers.
  */
 fs_initcall(clock_init);
-#endif /* !CONFIG_SUN4 */
 
 static void __init sbus_time_init(void)
 {
@@ -373,51 +293,8 @@ static void __init sbus_time_init(void)
 	BTFIXUPSET_CALL(bus_do_settimeofday, sbus_do_settimeofday, BTFIXUPCALL_NORM);
 	btfixup();
 
-	if (ARCH_SUN4)
-		sun4_clock_probe();
-
 	sparc_init_timers(timer_interrupt);
 	
-#ifdef CONFIG_SUN4
-	if(idprom->id_machtype == (SM_SUN4 | SM_4_330)) {
-		mostek_set_system_time();
-	} else if(idprom->id_machtype == (SM_SUN4 | SM_4_260) ) {
-		/* initialise the intersil on sun4 */
-		unsigned int year, mon, day, hour, min, sec;
-		int temp;
-		struct intersil *iregs;
-
-		iregs=intersil_clock;
-		if(!iregs) {
-			prom_printf("Something wrong, clock regs not mapped yet.\n");
-			prom_halt();
-		}
-
-		intersil_intr(intersil_clock,INTERSIL_INT_100HZ);
-		disable_pil_irq(10);
-		intersil_stop(iregs);
-		intersil_read_intr(intersil_clock, temp);
-
-		temp = iregs->clk.int_csec;
-
-		sec = iregs->clk.int_sec;
-		min = iregs->clk.int_min;
-		hour = iregs->clk.int_hour;
-		day = iregs->clk.int_day;
-		mon = iregs->clk.int_month;
-		year = MSTK_CVT_YEAR(iregs->clk.int_year);
-
-		enable_pil_irq(10);
-		intersil_start(iregs);
-
-		xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
-		xtime.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ);
-	        set_normalized_timespec(&wall_to_monotonic,
- 	                               -xtime.tv_sec, -xtime.tv_nsec);
-		printk("%u/%u/%u %u:%u:%u\n",day,mon,year,hour,min,sec);
-	}
-#endif
-
 	/* Now that OBP ticker has been silenced, it is safe to enable IRQ. */
 	local_irq_enable();
 }
@@ -532,43 +409,6 @@ static int set_rtc_mmss(unsigned long nowtime)
 	int real_seconds, real_minutes, mostek_minutes;
 	struct mostek48t02 *regs = (struct mostek48t02 *)mstk48t02_regs;
 	unsigned long flags;
-#ifdef CONFIG_SUN4
-	struct intersil *iregs = intersil_clock;
-	int temp;
-#endif
-
-	/* Not having a register set can lead to trouble. */
-	if (!regs) {
-#ifdef CONFIG_SUN4
-		if(!iregs)
-		return -1;
-	 	else {
-			temp = iregs->clk.int_csec;
-
-			mostek_minutes = iregs->clk.int_min;
-
-			real_seconds = nowtime % 60;
-			real_minutes = nowtime / 60;
-			if (((abs(real_minutes - mostek_minutes) + 15)/30) & 1)
-				real_minutes += 30;	/* correct for half hour time zone */
-			real_minutes %= 60;
-
-			if (abs(real_minutes - mostek_minutes) < 30) {
-				intersil_stop(iregs);
-				iregs->clk.int_sec=real_seconds;
-				iregs->clk.int_min=real_minutes;
-				intersil_start(iregs);
-			} else {
-				printk(KERN_WARNING
-			       "set_rtc_mmss: can't update from %d to %d\n",
-				       mostek_minutes, real_minutes);
-				return -1;
-			}
-			
-			return 0;
-		}
-#endif
-	}
 
 	spin_lock_irqsave(&mostek_lock, flags);
 	/* Read the current RTC minutes. */
-- 
cgit v1.2.3


From 5280267c1dddb8d413595b87dc406624bb497946 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 3 Sep 2008 02:04:41 -0700
Subject: sparc: Fix handling of LANCE and ESP parent nodes in of_device.c

The device nodes that sit above 'esp' and 'le' on SBUS lack a 'ranges'
property, but we should pass the translation up to the parent node so
that the SBUS level ranges get applied.

Based upon a bug report from Robert Reif.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/of_device.c | 26 ++++++++++++++++++++++----
 1 file changed, 22 insertions(+), 4 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/of_device.c b/arch/sparc/kernel/of_device.c
index c59014886af..4ef16075588 100644
--- a/arch/sparc/kernel/of_device.c
+++ b/arch/sparc/kernel/of_device.c
@@ -344,6 +344,27 @@ static int __init build_one_resource(struct device_node *parent,
 	return 1;
 }
 
+static int __init use_1to1_mapping(struct device_node *pp)
+{
+	/* If we have a ranges property in the parent, use it.  */
+	if (of_find_property(pp, "ranges", NULL) != NULL)
+		return 0;
+
+	/* Some SBUS devices use intermediate nodes to express
+	 * hierarchy within the device itself.  These aren't
+	 * real bus nodes, and don't have a 'ranges' property.
+	 * But, we should still pass the translation work up
+	 * to the SBUS itself.
+	 */
+	if (!strcmp(pp->name, "dma") ||
+	    !strcmp(pp->name, "espdma") ||
+	    !strcmp(pp->name, "ledma") ||
+	    !strcmp(pp->name, "lebuffer"))
+		return 0;
+
+	return 1;
+}
+
 static int of_resource_verbose;
 
 static void __init build_device_resources(struct of_device *op,
@@ -389,10 +410,7 @@ static void __init build_device_resources(struct of_device *op,
 
 		memcpy(addr, reg, na * 4);
 
-		/* If the immediate parent has no ranges property to apply,
-		 * just use a 1<->1 mapping.
-		 */
-		if (of_find_property(pp, "ranges", NULL) == NULL) {
+		if (use_1to1_mapping(pp)) {
 			result = of_read_addr(addr, na);
 			goto build_res;
 		}
-- 
cgit v1.2.3


From c4cbe6f96ebf8eb03884c31504d36dccd2ef1062 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 3 Sep 2008 15:52:38 -0700
Subject: sparc32: use RTC subsystem

Use rtc subsystem for sparc32 architecture.
Actually, only one driver is needed: m48t59
as it supports the most common clocks on sparc32
machines: m48t08 and m48t02.

[ Add proper RTC layer calls to set_rtc_mmss() -DaveM ]

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sparc_ksyms.c |   2 -
 arch/sparc/kernel/time.c        | 217 +++++++++++-----------------------------
 2 files changed, 60 insertions(+), 159 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index 6007ac5a736..0ce002e3955 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -123,8 +123,6 @@ EXPORT_SYMBOL(phys_cpu_present_map);
 EXPORT_SYMBOL(__udelay);
 EXPORT_SYMBOL(__ndelay);
 EXPORT_SYMBOL(rtc_lock);
-EXPORT_SYMBOL(mostek_lock);
-EXPORT_SYMBOL(mstk48t02_regs);
 #ifdef CONFIG_SUN_AUXIO
 EXPORT_SYMBOL(set_auxio);
 EXPORT_SYMBOL(get_auxio);
diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c
index f0a2874b04e..698c45059fa 100644
--- a/arch/sparc/kernel/time.c
+++ b/arch/sparc/kernel/time.c
@@ -23,6 +23,8 @@
 #include <linux/mm.h>
 #include <linux/interrupt.h>
 #include <linux/time.h>
+#include <linux/rtc.h>
+#include <linux/rtc/m48t59.h>
 #include <linux/timex.h>
 #include <linux/init.h>
 #include <linux/pci.h>
@@ -30,10 +32,10 @@
 #include <linux/profile.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
+#include <linux/platform_device.h>
 
 #include <asm/oplib.h>
 #include <asm/timer.h>
-#include <asm/mostek.h>
 #include <asm/system.h>
 #include <asm/irq.h>
 #include <asm/io.h>
@@ -46,10 +48,6 @@
 #include "irq.h"
 
 DEFINE_SPINLOCK(rtc_lock);
-static enum sparc_clock_type sp_clock_typ;
-DEFINE_SPINLOCK(mostek_lock);
-void __iomem *mstk48t02_regs = NULL;
-static struct mostek48t08 __iomem *mstk48t08_regs = NULL;
 static int set_rtc_mmss(unsigned long);
 static int sbus_do_settimeofday(struct timespec *tv);
 
@@ -118,107 +116,55 @@ static irqreturn_t timer_interrupt(int dummy, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-/* Kick start a stopped clock (procedure from the Sun NVRAM/hostid FAQ). */
-static void __devinit kick_start_clock(void)
+static unsigned char mostek_read_byte(struct device *dev, u32 ofs)
 {
-	struct mostek48t02 *regs = (struct mostek48t02 *)mstk48t02_regs;
-	unsigned char sec;
-	int i, count;
-
-	prom_printf("CLOCK: Clock was stopped. Kick start ");
-
-	spin_lock_irq(&mostek_lock);
-
-	/* Turn on the kick start bit to start the oscillator. */
-	regs->creg |= MSTK_CREG_WRITE;
-	regs->sec &= ~MSTK_STOP;
-	regs->hour |= MSTK_KICK_START;
-	regs->creg &= ~MSTK_CREG_WRITE;
-
-	spin_unlock_irq(&mostek_lock);
-
-	/* Delay to allow the clock oscillator to start. */
-	sec = MSTK_REG_SEC(regs);
-	for (i = 0; i < 3; i++) {
-		while (sec == MSTK_REG_SEC(regs))
-			for (count = 0; count < 100000; count++)
-				/* nothing */ ;
-		prom_printf(".");
-		sec = regs->sec;
+	struct platform_device *pdev = to_platform_device(dev);
+	struct m48t59_plat_data *pdata = pdev->dev.platform_data;
+	void __iomem *regs = pdata->ioaddr;
+	unsigned char val = readb(regs + ofs);
+
+	/* the year 0 is 1968 */
+	if (ofs == pdata->offset + M48T59_YEAR) {
+		val += 0x68;
+		if ((val & 0xf) > 9)
+			val += 6;
 	}
-	prom_printf("\n");
-
-	spin_lock_irq(&mostek_lock);
-
-	/* Turn off kick start and set a "valid" time and date. */
-	regs->creg |= MSTK_CREG_WRITE;
-	regs->hour &= ~MSTK_KICK_START;
-	MSTK_SET_REG_SEC(regs,0);
-	MSTK_SET_REG_MIN(regs,0);
-	MSTK_SET_REG_HOUR(regs,0);
-	MSTK_SET_REG_DOW(regs,5);
-	MSTK_SET_REG_DOM(regs,1);
-	MSTK_SET_REG_MONTH(regs,8);
-	MSTK_SET_REG_YEAR(regs,1996 - MSTK_YEAR_ZERO);
-	regs->creg &= ~MSTK_CREG_WRITE;
-
-	spin_unlock_irq(&mostek_lock);
-
-	/* Ensure the kick start bit is off. If it isn't, turn it off. */
-	while (regs->hour & MSTK_KICK_START) {
-		prom_printf("CLOCK: Kick start still on!\n");
-
-		spin_lock_irq(&mostek_lock);
-		regs->creg |= MSTK_CREG_WRITE;
-		regs->hour &= ~MSTK_KICK_START;
-		regs->creg &= ~MSTK_CREG_WRITE;
-		spin_unlock_irq(&mostek_lock);
-	}
-
-	prom_printf("CLOCK: Kick start procedure successful.\n");
+	return val;
 }
 
-/* Return nonzero if the clock chip battery is low. */
-static inline int has_low_battery(void)
+static void mostek_write_byte(struct device *dev, u32 ofs, u8 val)
 {
-	struct mostek48t02 *regs = (struct mostek48t02 *)mstk48t02_regs;
-	unsigned char data1, data2;
-
-	spin_lock_irq(&mostek_lock);
-	data1 = regs->eeprom[0];	/* Read some data. */
-	regs->eeprom[0] = ~data1;	/* Write back the complement. */
-	data2 = regs->eeprom[0];	/* Read back the complement. */
-	regs->eeprom[0] = data1;	/* Restore the original value. */
-	spin_unlock_irq(&mostek_lock);
-
-	return (data1 == data2);	/* Was the write blocked? */
+	struct platform_device *pdev = to_platform_device(dev);
+	struct m48t59_plat_data *pdata = pdev->dev.platform_data;
+	void __iomem *regs = pdata->ioaddr;
+
+	if (ofs == pdata->offset + M48T59_YEAR) {
+		if (val < 0x68)
+			val += 0x32;
+		else
+			val -= 0x68;
+		if ((val & 0xf) > 9)
+			val += 6;
+		if ((val & 0xf0) > 0x9A)
+			val += 0x60;
+	}
+	writeb(val, regs + ofs);
 }
 
-static void __devinit mostek_set_system_time(void)
-{
-	unsigned int year, mon, day, hour, min, sec;
-	struct mostek48t02 *mregs;
-
-	mregs = (struct mostek48t02 *)mstk48t02_regs;
-	if(!mregs) {
-		prom_printf("Something wrong, clock regs not mapped yet.\n");
-		prom_halt();
-	}		
-	spin_lock_irq(&mostek_lock);
-	mregs->creg |= MSTK_CREG_READ;
-	sec = MSTK_REG_SEC(mregs);
-	min = MSTK_REG_MIN(mregs);
-	hour = MSTK_REG_HOUR(mregs);
-	day = MSTK_REG_DOM(mregs);
-	mon = MSTK_REG_MONTH(mregs);
-	year = MSTK_CVT_YEAR( MSTK_REG_YEAR(mregs) );
-	xtime.tv_sec = mktime(year, mon, day, hour, min, sec);
-	xtime.tv_nsec = (INITIAL_JIFFIES % HZ) * (NSEC_PER_SEC / HZ);
-        set_normalized_timespec(&wall_to_monotonic,
-                                -xtime.tv_sec, -xtime.tv_nsec);
-	mregs->creg &= ~MSTK_CREG_READ;
-	spin_unlock_irq(&mostek_lock);
-}
+static struct m48t59_plat_data m48t59_data = {
+	.read_byte = mostek_read_byte,
+	.write_byte = mostek_write_byte,
+};
+
+/* resource is set at runtime */
+static struct platform_device m48t59_rtc = {
+	.name		= "rtc-m48t59",
+	.id		= 0,
+	.num_resources	= 1,
+	.dev	= {
+		.platform_data = &m48t59_data,
+	},
+};
 
 static int __devinit clock_probe(struct of_device *op, const struct of_device_id *match)
 {
@@ -228,33 +174,21 @@ static int __devinit clock_probe(struct of_device *op, const struct of_device_id
 	if (!model)
 		return -ENODEV;
 
+	m48t59_rtc.resource = &op->resource[0];
 	if (!strcmp(model, "mk48t02")) {
-		sp_clock_typ = MSTK48T02;
-
 		/* Map the clock register io area read-only */
-		mstk48t02_regs = of_ioremap(&op->resource[0], 0,
-					    sizeof(struct mostek48t02),
-					    "mk48t02");
-		mstk48t08_regs = NULL;  /* To catch weirdness */
+		m48t59_data.ioaddr = of_ioremap(&op->resource[0], 0,
+						2048, "rtc-m48t59");
+		m48t59_data.type = M48T59RTC_TYPE_M48T02;
 	} else if (!strcmp(model, "mk48t08")) {
-		sp_clock_typ = MSTK48T08;
-		mstk48t08_regs = of_ioremap(&op->resource[0], 0,
-					    sizeof(struct mostek48t08),
-					    "mk48t08");
-
-		mstk48t02_regs = &mstk48t08_regs->regs;
+		m48t59_data.ioaddr = of_ioremap(&op->resource[0], 0,
+						8192, "rtc-m48t59");
+		m48t59_data.type = M48T59RTC_TYPE_M48T08;
 	} else
 		return -ENODEV;
 
-	/* Report a low battery voltage condition. */
-	if (has_low_battery())
-		printk(KERN_CRIT "NVRAM: Low battery voltage!\n");
-
-	/* Kick start the clock if it is completely stopped. */
-	if (mostek_read(mstk48t02_regs + MOSTEK_SEC) & MSTK_STOP)
-		kick_start_clock();
-
-	mostek_set_system_time();
+	if (platform_device_register(&m48t59_rtc) < 0)
+		printk(KERN_ERR "Registering RTC device failed\n");
 
 	return 0;
 }
@@ -270,7 +204,7 @@ static struct of_platform_driver clock_driver = {
 	.match_table	= clock_match,
 	.probe		= clock_probe,
 	.driver		= {
-		.name	= "clock",
+		.name	= "rtc",
 	},
 };
 
@@ -400,43 +334,12 @@ static int sbus_do_settimeofday(struct timespec *tv)
 	return 0;
 }
 
-/*
- * BUG: This routine does not handle hour overflow properly; it just
- *      sets the minutes. Usually you won't notice until after reboot!
- */
-static int set_rtc_mmss(unsigned long nowtime)
+static int set_rtc_mmss(unsigned long secs)
 {
-	int real_seconds, real_minutes, mostek_minutes;
-	struct mostek48t02 *regs = (struct mostek48t02 *)mstk48t02_regs;
-	unsigned long flags;
+	struct rtc_device *rtc = rtc_class_open("rtc0");
 
-	spin_lock_irqsave(&mostek_lock, flags);
-	/* Read the current RTC minutes. */
-	regs->creg |= MSTK_CREG_READ;
-	mostek_minutes = MSTK_REG_MIN(regs);
-	regs->creg &= ~MSTK_CREG_READ;
+	if (rtc)
+		return rtc_set_mmss(rtc, secs);
 
-	/*
-	 * since we're only adjusting minutes and seconds,
-	 * don't interfere with hour overflow. This avoids
-	 * messing with unknown time zones but requires your
-	 * RTC not to be off by more than 15 minutes
-	 */
-	real_seconds = nowtime % 60;
-	real_minutes = nowtime / 60;
-	if (((abs(real_minutes - mostek_minutes) + 15)/30) & 1)
-		real_minutes += 30;	/* correct for half hour time zone */
-	real_minutes %= 60;
-
-	if (abs(real_minutes - mostek_minutes) < 30) {
-		regs->creg |= MSTK_CREG_WRITE;
-		MSTK_SET_REG_SEC(regs,real_seconds);
-		MSTK_SET_REG_MIN(regs,real_minutes);
-		regs->creg &= ~MSTK_CREG_WRITE;
-		spin_unlock_irqrestore(&mostek_lock, flags);
-		return 0;
-	} else {
-		spin_unlock_irqrestore(&mostek_lock, flags);
-		return -1;
-	}
+	return -1;
 }
-- 
cgit v1.2.3


From 81c4fdb1d64a44ffc17c5c64b32a1be4fc85dd55 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 3 Sep 2008 15:56:27 -0700
Subject: sparc32: Kill remaining asm/mostek.h inclusions.

No longer needed.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sparc_ksyms.c | 1 -
 arch/sparc/kernel/tick14.c      | 1 -
 2 files changed, 2 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sparc_ksyms.c b/arch/sparc/kernel/sparc_ksyms.c
index 0ce002e3955..b0dfff84865 100644
--- a/arch/sparc/kernel/sparc_ksyms.c
+++ b/arch/sparc/kernel/sparc_ksyms.c
@@ -38,7 +38,6 @@
 #include <asm/idprom.h>
 #include <asm/head.h>
 #include <asm/smp.h>
-#include <asm/mostek.h>
 #include <asm/ptrace.h>
 #include <asm/uaccess.h>
 #include <asm/checksum.h>
diff --git a/arch/sparc/kernel/tick14.c b/arch/sparc/kernel/tick14.c
index 707bfda8657..77a4f3aeec6 100644
--- a/arch/sparc/kernel/tick14.c
+++ b/arch/sparc/kernel/tick14.c
@@ -20,7 +20,6 @@
 
 #include <asm/oplib.h>
 #include <asm/timer.h>
-#include <asm/mostek.h>
 #include <asm/system.h>
 #include <asm/irq.h>
 #include <asm/io.h>
-- 
cgit v1.2.3


From 365b50f0f09c1a24f1a60e0c027f300ed423c192 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 2 Sep 2008 01:13:31 -0700
Subject: sparc32: Fix coding style of sparc_cpu_model setting code.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/setup.c | 21 ++++++++++++++-------
 1 file changed, 14 insertions(+), 7 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/setup.c b/arch/sparc/kernel/setup.c
index 8d5fbce1635..f8391c0d7e9 100644
--- a/arch/sparc/kernel/setup.c
+++ b/arch/sparc/kernel/setup.c
@@ -216,13 +216,20 @@ void __init setup_arch(char **cmdline_p)
 
 	/* Set sparc_cpu_model */
 	sparc_cpu_model = sun_unknown;
-	if(!strcmp(&cputypval,"sun4 ")) { sparc_cpu_model=sun4; }
-	if(!strcmp(&cputypval,"sun4c")) { sparc_cpu_model=sun4c; }
-	if(!strcmp(&cputypval,"sun4m")) { sparc_cpu_model=sun4m; }
-	if(!strcmp(&cputypval,"sun4s")) { sparc_cpu_model=sun4m; }  /* CP-1200 with PROM 2.30 -E */
-	if(!strcmp(&cputypval,"sun4d")) { sparc_cpu_model=sun4d; }
-	if(!strcmp(&cputypval,"sun4e")) { sparc_cpu_model=sun4e; }
-	if(!strcmp(&cputypval,"sun4u")) { sparc_cpu_model=sun4u; }
+	if (!strcmp(&cputypval,"sun4 "))
+		sparc_cpu_model = sun4;
+	if (!strcmp(&cputypval,"sun4c"))
+		sparc_cpu_model = sun4c;
+	if (!strcmp(&cputypval,"sun4m"))
+		sparc_cpu_model = sun4m;
+	if (!strcmp(&cputypval,"sun4s"))
+		sparc_cpu_model = sun4m; /* CP-1200 with PROM 2.30 -E */
+	if (!strcmp(&cputypval,"sun4d"))
+		sparc_cpu_model = sun4d;
+	if (!strcmp(&cputypval,"sun4e"))
+		sparc_cpu_model = sun4e;
+	if (!strcmp(&cputypval,"sun4u"))
+		sparc_cpu_model = sun4u;
 
 	printk("ARCH: ");
 	switch(sparc_cpu_model) {
-- 
cgit v1.2.3


From 7b1af32f52077402157f8bb8fc22d8da17606095 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 2 Sep 2008 01:17:41 -0700
Subject: sparc32: Move sun4d show_leds() out of asm/obio.h

Put it, as well as cpu_leds[] array, into sun4d_irq.c

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sun4d_irq.c |  1 -
 arch/sparc/kernel/sun4d_smp.c | 11 +++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c
index c4a2bfb750a..12541f51fcf 100644
--- a/arch/sparc/kernel/sun4d_irq.c
+++ b/arch/sparc/kernel/sun4d_irq.c
@@ -51,7 +51,6 @@ struct sun4d_timer_regs *sun4d_timers;
 #define MAX_STATIC_ALLOC	4
 extern struct irqaction static_irqaction[MAX_STATIC_ALLOC];
 extern int static_irq_count;
-unsigned char cpu_leds[32];
 #ifdef CONFIG_SMP
 static unsigned char sbus_tid[32];
 #endif
diff --git a/arch/sparc/kernel/sun4d_smp.c b/arch/sparc/kernel/sun4d_smp.c
index 72fa8daab60..49a08b487ca 100644
--- a/arch/sparc/kernel/sun4d_smp.c
+++ b/arch/sparc/kernel/sun4d_smp.c
@@ -71,6 +71,17 @@ static void smp_setup_percpu_timer(void);
 extern void cpu_probe(void);
 extern void sun4d_distribute_irqs(void);
 
+static unsigned char cpu_leds[32];
+
+static inline void show_leds(int cpuid)
+{
+	cpuid &= 0x1e;
+	__asm__ __volatile__ ("stba %0, [%1] %2" : :
+			      "r" ((cpu_leds[cpuid] << 4) | cpu_leds[cpuid+1]),
+			      "r" (ECSR_BASE(cpuid) | BB_LEDS),
+			      "i" (ASI_M_CTL));
+}
+
 void __init smp4d_callin(void)
 {
 	int cpuid = hard_smp4d_processor_id();
-- 
cgit v1.2.3


From ab138c031f72f6d030afa1a06a3a537e85ae843e Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 10 Sep 2008 13:36:13 -0700
Subject: sparc32: Need to close openned RTC device just like sparc64.

Otherwise we get refcount problems.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/time.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c
index 698c45059fa..fa54d585f55 100644
--- a/arch/sparc/kernel/time.c
+++ b/arch/sparc/kernel/time.c
@@ -337,9 +337,12 @@ static int sbus_do_settimeofday(struct timespec *tv)
 static int set_rtc_mmss(unsigned long secs)
 {
 	struct rtc_device *rtc = rtc_class_open("rtc0");
+	int err = -1;
 
-	if (rtc)
-		return rtc_set_mmss(rtc, secs);
+	if (rtc) {
+		err = rtc_set_mmss(rtc, secs);
+		rtc_class_close(rtc);
+	}
 
-	return -1;
+	return err;
 }
-- 
cgit v1.2.3


From 3fbe36d8da0081dbee23c5d477d8142fab98c42e Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Wed, 10 Sep 2008 23:40:32 -0700
Subject: sparc32: Call parse_early_param() in setup_arch().

Mirror sparc64.  This will allow us to use early_param() on
sparc32 too.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/setup.c | 1 +
 1 file changed, 1 insertion(+)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/setup.c b/arch/sparc/kernel/setup.c
index f8391c0d7e9..24fe3078bd4 100644
--- a/arch/sparc/kernel/setup.c
+++ b/arch/sparc/kernel/setup.c
@@ -213,6 +213,7 @@ void __init setup_arch(char **cmdline_p)
 	/* Initialize PROM console and command line. */
 	*cmdline_p = prom_getbootargs();
 	strcpy(boot_command_line, *cmdline_p);
+	parse_early_param();
 
 	/* Set sparc_cpu_model */
 	sparc_cpu_model = sun_unknown;
-- 
cgit v1.2.3


From 3c503701038ac161c269ea43cd67805a3c5669fb Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Fri, 12 Sep 2008 15:01:31 -0700
Subject: sparc: Fix user_regset 'n' field values.

As noticed by Russell King, we were not setting this properly
to the number of entries, but rather the total size.

This results in the core dumping code allocating waayyyy too
much memory.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/ptrace.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/ptrace.c b/arch/sparc/kernel/ptrace.c
index 20699c70141..8ce6285a06d 100644
--- a/arch/sparc/kernel/ptrace.c
+++ b/arch/sparc/kernel/ptrace.c
@@ -288,7 +288,7 @@ static const struct user_regset sparc32_regsets[] = {
 	 */
 	[REGSET_GENERAL] = {
 		.core_note_type = NT_PRSTATUS,
-		.n = 38 * sizeof(u32),
+		.n = 38,
 		.size = sizeof(u32), .align = sizeof(u32),
 		.get = genregs32_get, .set = genregs32_set
 	},
@@ -304,7 +304,7 @@ static const struct user_regset sparc32_regsets[] = {
 	 */
 	[REGSET_FP] = {
 		.core_note_type = NT_PRFPREG,
-		.n = 99 * sizeof(u32),
+		.n = 99,
 		.size = sizeof(u32), .align = sizeof(u32),
 		.get = fpregs32_get, .set = fpregs32_set
 	},
-- 
cgit v1.2.3


From 9b2e43ae4e9609f80034dfe8de895045cac52d77 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Thu, 11 Sep 2008 23:08:30 -0700
Subject: sparc32: Use PROM device probing for sun4m timer registers.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sun4m_irq.c | 121 ++++++++++++++++++++----------------------
 1 file changed, 57 insertions(+), 64 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c
index 3481feca335..5b17146f0c1 100644
--- a/arch/sparc/kernel/sun4m_irq.c
+++ b/arch/sparc/kernel/sun4m_irq.c
@@ -267,95 +267,88 @@ static void sun4m_set_udt(int cpu)
 }
 #endif
 
+struct sun4m_timer_percpu {
+	u32		l14_limit;
+	u32		l14_count;
+	u32		l14_limit_noclear;
+	u32		user_timer_start_stop;
+};
+
+static struct sun4m_timer_percpu __iomem *timers_percpu[SUN4M_NCPUS];
+
+struct sun4m_timer_global {
+	u32		l10_limit;
+	u32		l10_count;
+	u32		l10_limit_noclear;
+	u32		reserved;
+	u32		timer_config;
+};
+
+static struct sun4m_timer_global __iomem *timers_global;
+
 #define OBIO_INTR	0x20
 #define TIMER_IRQ  	(OBIO_INTR | 10)
-#define PROFILE_IRQ	(OBIO_INTR | 14)
 
-static struct sun4m_timer_regs *sun4m_timers;
 unsigned int lvl14_resolution = (((1000000/HZ) + 1) << 10);
 
 static void sun4m_clear_clock_irq(void)
 {
-	volatile unsigned int clear_intr;
-	clear_intr = sun4m_timers->l10_timer_limit;
+	sbus_readl(&timers_global->l10_limit);
 }
 
 static void sun4m_clear_profile_irq(int cpu)
 {
-	volatile unsigned int clear;
-    
-	clear = sun4m_timers->cpu_timers[cpu].l14_timer_limit;
+	sbus_readl(&timers_percpu[cpu]->l14_limit);
 }
 
 static void sun4m_load_profile_irq(int cpu, unsigned int limit)
 {
-	sun4m_timers->cpu_timers[cpu].l14_timer_limit = limit;
+	sbus_writel(limit, &timers_percpu[cpu]->l14_limit);
 }
 
 static void __init sun4m_init_timers(irq_handler_t counter_fn)
 {
-	int reg_count, irq, cpu;
-	struct linux_prom_registers cnt_regs[PROMREG_MAX];
-	int obio_node, cnt_node;
-	struct resource r;
+	struct device_node *dp = of_find_node_by_name(NULL, "counter");
+	int i, err, len, num_cpu_timers;
+	const u32 *addr;
 
-	cnt_node = 0;
-	if((obio_node =
-	    prom_searchsiblings (prom_getchild(prom_root_node), "obio")) == 0 ||
-	   (obio_node = prom_getchild (obio_node)) == 0 ||
-	   (cnt_node = prom_searchsiblings (obio_node, "counter")) == 0) {
-		prom_printf("Cannot find /obio/counter node\n");
-		prom_halt();
+	if (!dp) {
+		printk(KERN_ERR "sun4m_init_timers: No 'counter' node.\n");
+		return;
 	}
-	reg_count = prom_getproperty(cnt_node, "reg",
-				     (void *) cnt_regs, sizeof(cnt_regs));
-	reg_count = (reg_count/sizeof(struct linux_prom_registers));
-    
-	/* Apply the obio ranges to the timer registers. */
-	prom_apply_obio_ranges(cnt_regs, reg_count);
-    
-	cnt_regs[4].phys_addr = cnt_regs[reg_count-1].phys_addr;
-	cnt_regs[4].reg_size = cnt_regs[reg_count-1].reg_size;
-	cnt_regs[4].which_io = cnt_regs[reg_count-1].which_io;
-	for(obio_node = 1; obio_node < 4; obio_node++) {
-		cnt_regs[obio_node].phys_addr =
-			cnt_regs[obio_node-1].phys_addr + PAGE_SIZE;
-		cnt_regs[obio_node].reg_size = cnt_regs[obio_node-1].reg_size;
-		cnt_regs[obio_node].which_io = cnt_regs[obio_node-1].which_io;
+
+	addr = of_get_property(dp, "address", &len);
+	if (!addr) {
+		printk(KERN_ERR "sun4m_init_timers: No 'address' prop.\n");
+		return;
 	}
 
-	memset((char*)&r, 0, sizeof(struct resource));
-	/* Map the per-cpu Counter registers. */
-	r.flags = cnt_regs[0].which_io;
-	r.start = cnt_regs[0].phys_addr;
-	sun4m_timers = (struct sun4m_timer_regs *) of_ioremap(&r, 0,
-	    PAGE_SIZE*SUN4M_NCPUS, "sun4m_cpu_cnt");
-	/* Map the system Counter register. */
-	/* XXX Here we expect consequent calls to yeld adjusent maps. */
-	r.flags = cnt_regs[4].which_io;
-	r.start = cnt_regs[4].phys_addr;
-	of_ioremap(&r, 0, cnt_regs[4].reg_size, "sun4m_sys_cnt");
-
-	sun4m_timers->l10_timer_limit =  (((1000000/HZ) + 1) << 10);
-	master_l10_counter = &sun4m_timers->l10_cur_count;
-	master_l10_limit = &sun4m_timers->l10_timer_limit;
-
-	irq = request_irq(TIMER_IRQ,
-			  counter_fn,
-			  (IRQF_DISABLED | SA_STATIC_ALLOC),
-			  "timer", NULL);
-	if (irq) {
-		prom_printf("time_init: unable to attach IRQ%d\n",TIMER_IRQ);
-		prom_halt();
+	num_cpu_timers = (len / sizeof(u32)) - 1;
+	for (i = 0; i < num_cpu_timers; i++) {
+		timers_percpu[i] = (void __iomem *)
+			(unsigned long) addr[i];
 	}
-   
-	if (!cpu_find_by_instance(1, NULL, NULL)) {
-		for(cpu = 0; cpu < 4; cpu++)
-			sun4m_timers->cpu_timers[cpu].l14_timer_limit = 0;
-		sun4m_interrupts->set = SUN4M_INT_E14;
-	} else {
-		sun4m_timers->cpu_timers[0].l14_timer_limit = 0;
+	timers_global = (void __iomem *)
+		(unsigned long) addr[num_cpu_timers];
+
+	sbus_writel((((1000000/HZ) + 1) << 10), &timers_global->l10_limit);
+
+	master_l10_counter = &timers_global->l10_count;
+	master_l10_limit = &timers_global->l10_limit;
+
+	err = request_irq(TIMER_IRQ, counter_fn,
+			  (IRQF_DISABLED | SA_STATIC_ALLOC), "timer", NULL);
+	if (err) {
+		printk(KERN_ERR "sun4m_init_timers: Register IRQ error %d.\n",
+			err);
+		return;
 	}
+
+	for (i = 0; i < num_cpu_timers; i++)
+		sbus_writel(0, &timers_percpu[i]->l14_limit);
+	if (num_cpu_timers == 4)
+		sbus_writel(SUN4M_INT_E14, &sun4m_interrupts->set);
+
 #ifdef CONFIG_SMP
 	{
 		unsigned long flags;
-- 
cgit v1.2.3


From 69c010b24560be5ca7667e94a352183e60ed205e Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Fri, 19 Sep 2008 21:17:43 -0700
Subject: sparc32: Use PROM device probing for sun4m irq registers.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/entry.S     |  40 +++++------
 arch/sparc/kernel/sun4m_irq.c | 163 ++++++++++++++----------------------------
 2 files changed, 74 insertions(+), 129 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index 68689facaaa..faf9ccd9ef5 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -272,17 +272,18 @@ smp4m_ticker:
 	 */
 maybe_smp4m_msg:
 	GET_PROCESSOR4M_ID(o3)
-	set	sun4m_interrupts, %l5
-	ld	[%l5], %o5
+	sethi	%hi(sun4m_irq_percpu), %l5
+	sll	%o3, 2, %o3
+	or	%l5, %lo(sun4m_irq_percpu), %o5
 	sethi	%hi(0x40000000), %o2
-	sll	%o3, 12, %o3
 	ld	[%o5 + %o3], %o1
-	andcc	%o1, %o2, %g0
+	ld	[%o1 + 0x00], %o3	! sun4m_irq_percpu[cpu]->pending
+	andcc	%o3, %o2, %g0
 	be,a	smp4m_ticker
 	 cmp	%l7, 14
-	st	%o2, [%o5 + 0x4]
+	st	%o2, [%o1 + 0x04]	! sun4m_irq_percpu[cpu]->clear=0x40000000
 	WRITE_PAUSE
-	ld	[%o5], %g0
+	ld	[%o1 + 0x00], %g0	! sun4m_irq_percpu[cpu]->pending
 	WRITE_PAUSE
 	or	%l0, PSR_PIL, %l4
 	wr	%l4, 0x0, %psr
@@ -300,16 +301,16 @@ linux_trap_ipi15_sun4m:
 	SAVE_ALL
 	sethi	%hi(0x80000000), %o2
 	GET_PROCESSOR4M_ID(o0)
-	set	sun4m_interrupts, %l5
-	ld	[%l5], %o5
-	sll	%o0, 12, %o0
-	add	%o5, %o0, %o5
-	ld	[%o5], %o3
+	sethi	%hi(sun4m_irq_percpu), %l5
+	or	%l5, %lo(sun4m_irq_percpu), %o5
+	sll	%o0, 2, %o0
+	ld	[%o5 + %o0], %o5
+	ld	[%o5 + 0x00], %o3	! sun4m_irq_percpu[cpu]->pending
 	andcc	%o3, %o2, %g0
 	be	1f			! Must be an NMI async memory error
-	 st	%o2, [%o5 + 4]
+	 st	%o2, [%o5 + 0x04]	! sun4m_irq_percpu[cpu]->clear=0x80000000
 	WRITE_PAUSE
-	ld	[%o5], %g0
+	ld	[%o5 + 0x00], %g0	! sun4m_irq_percpu[cpu]->pending
 	WRITE_PAUSE
 	or	%l0, PSR_PIL, %l4
 	wr	%l4, 0x0, %psr
@@ -323,12 +324,11 @@ linux_trap_ipi15_sun4m:
 1:
 	/* NMI async memory error handling. */
 	sethi	%hi(0x80000000), %l4
-	sethi	%hi(0x4000), %o3
-	sub	%o5, %o0, %o5
-	add	%o5, %o3, %l5
-	st	%l4, [%l5 + 0xc]
+	sethi	%hi(sun4m_irq_global), %o5
+	ld	[%o5 + %lo(sun4m_irq_global)], %l5
+	st	%l4, [%l5 + 0x0c]	! sun4m_irq_global->mask_set=0x80000000
 	WRITE_PAUSE
-	ld	[%l5], %g0
+	ld	[%l5 + 0x00], %g0	! sun4m_irq_global->pending
 	WRITE_PAUSE
 	or	%l0, PSR_PIL, %l4
 	wr	%l4, 0x0, %psr
@@ -337,9 +337,9 @@ linux_trap_ipi15_sun4m:
 	WRITE_PAUSE
 	call	sun4m_nmi
 	 nop
-	st	%l4, [%l5 + 0x8]
+	st	%l4, [%l5 + 0x08]	! sun4m_irq_global->mask_clear=0x80000000
 	WRITE_PAUSE
-	ld	[%l5], %g0
+	ld	[%l5 + 0x00], %g0	! sun4m_irq_global->pending
 	WRITE_PAUSE
 	RESTORE_ALL
 
diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c
index 5b17146f0c1..39d40e96d39 100644
--- a/arch/sparc/kernel/sun4m_irq.c
+++ b/arch/sparc/kernel/sun4m_irq.c
@@ -41,53 +41,25 @@
 
 #include "irq.h"
 
-/* On the sun4m, just like the timers, we have both per-cpu and master
- * interrupt registers.
- */
-
-/* These registers are used for sending/receiving irqs from/to
- * different cpu's.
- */
-struct sun4m_intreg_percpu {
-	unsigned int tbt;        /* Interrupts still pending for this cpu. */
-
-	/* These next two registers are WRITE-ONLY and are only
-	 * "on bit" sensitive, "off bits" written have NO affect.
-	 */
-	unsigned int clear;  /* Clear this cpus irqs here. */
-	unsigned int set;    /* Set this cpus irqs here. */
-	unsigned char space[PAGE_SIZE - 12];
+struct sun4m_irq_percpu {
+	u32		pending;
+	u32		clear;
+	u32		set;
 };
 
-/*
- * djhr
- * Actually the clear and set fields in this struct are misleading..
- * according to the SLAVIO manual (and the same applies for the SEC)
- * the clear field clears bits in the mask which will ENABLE that IRQ
- * the set field sets bits in the mask to DISABLE the IRQ.
- *
- * Also the undirected_xx address in the SLAVIO is defined as
- * RESERVED and write only..
- *
- * DAVEM_NOTE: The SLAVIO only specifies behavior on uniprocessor
- *             sun4m machines, for MP the layout makes more sense.
- */
-struct sun4m_intregs {
-	struct sun4m_intreg_percpu cpu_intregs[SUN4M_NCPUS];
-	unsigned int tbt;                /* IRQ's that are still pending. */
-	unsigned int irqs;               /* Master IRQ bits. */
-
-	/* Again, like the above, two these registers are WRITE-ONLY. */
-	unsigned int clear;              /* Clear master IRQ's by setting bits here. */
-	unsigned int set;                /* Set master IRQ's by setting bits here. */
-
-	/* This register is both READ and WRITE. */
-	unsigned int undirected_target;  /* Which cpu gets undirected irqs. */
+struct sun4m_irq_global {
+	u32		pending;
+	u32		mask;
+	u32		mask_clear;
+	u32		mask_set;
+	u32		interrupt_target;
 };
 
-static unsigned long dummy;
+/* Code in entry.S needs to get at these register mappings.  */
+struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS];
+struct sun4m_irq_global __iomem *sun4m_irq_global;
 
-struct sun4m_intregs *sun4m_interrupts;
+static unsigned long dummy;
 unsigned long *irq_rcvreg = &dummy;
 
 /* Dave Redman (djhr@tadpole.co.uk)
@@ -182,9 +154,9 @@ static void sun4m_disable_irq(unsigned int irq_nr)
 	mask = sun4m_get_irqmask(irq_nr);
 	local_irq_save(flags);
 	if (irq_nr > 15)
-		sun4m_interrupts->set = mask;
+		sbus_writel(mask, &sun4m_irq_global->mask_set);
 	else
-		sun4m_interrupts->cpu_intregs[cpu].set = mask;
+		sbus_writel(mask, &sun4m_irq_percpu[cpu]->set);
 	local_irq_restore(flags);    
 }
 
@@ -201,13 +173,13 @@ static void sun4m_enable_irq(unsigned int irq_nr)
 		mask = sun4m_get_irqmask(irq_nr);
 		local_irq_save(flags);
 		if (irq_nr > 15)
-			sun4m_interrupts->clear = mask;
+			sbus_writel(mask, &sun4m_irq_global->mask_clear);
 		else
-			sun4m_interrupts->cpu_intregs[cpu].clear = mask;
+			sbus_writel(mask, &sun4m_irq_percpu[cpu]->clear);
 		local_irq_restore(flags);    
 	} else {
 		local_irq_save(flags);
-		sun4m_interrupts->clear = SUN4M_INT_FLOPPY;
+		sbus_writel(SUN4M_INT_FLOPPY, &sun4m_irq_global->mask_clear);
 		local_irq_restore(flags);
 	}
 }
@@ -236,34 +208,30 @@ static unsigned long cpu_pil_to_imask[16] = {
  */
 static void sun4m_disable_pil_irq(unsigned int pil)
 {
-	sun4m_interrupts->set = cpu_pil_to_imask[pil];
+	sbus_writel(cpu_pil_to_imask[pil], &sun4m_irq_global->mask_set);
 }
 
 static void sun4m_enable_pil_irq(unsigned int pil)
 {
-	sun4m_interrupts->clear = cpu_pil_to_imask[pil];
+	sbus_writel(cpu_pil_to_imask[pil], &sun4m_irq_global->mask_clear);
 }
 
 #ifdef CONFIG_SMP
 static void sun4m_send_ipi(int cpu, int level)
 {
-	unsigned long mask;
-
-	mask = sun4m_get_irqmask(level);
-	sun4m_interrupts->cpu_intregs[cpu].set = mask;
+	unsigned long mask = sun4m_get_irqmask(level);
+	sbus_writel(mask, &sun4m_irq_percpu[cpu]->set);
 }
 
 static void sun4m_clear_ipi(int cpu, int level)
 {
-	unsigned long mask;
-
-	mask = sun4m_get_irqmask(level);
-	sun4m_interrupts->cpu_intregs[cpu].clear = mask;
+	unsigned long mask = sun4m_get_irqmask(level);
+	sbus_writel(mask, &sun4m_irq_percpu[cpu]->clear);
 }
 
 static void sun4m_set_udt(int cpu)
 {
-	sun4m_interrupts->undirected_target = cpu;
+	sbus_writel(cpu, &sun4m_irq_global->interrupt_target);
 }
 #endif
 
@@ -347,7 +315,7 @@ static void __init sun4m_init_timers(irq_handler_t counter_fn)
 	for (i = 0; i < num_cpu_timers; i++)
 		sbus_writel(0, &timers_percpu[i]->l14_limit);
 	if (num_cpu_timers == 4)
-		sbus_writel(SUN4M_INT_E14, &sun4m_interrupts->set);
+		sbus_writel(SUN4M_INT_E14, &sun4m_irq_global->mask_set);
 
 #ifdef CONFIG_SMP
 	{
@@ -372,62 +340,38 @@ static void __init sun4m_init_timers(irq_handler_t counter_fn)
 
 void __init sun4m_init_IRQ(void)
 {
-	int ie_node,i;
-	struct linux_prom_registers int_regs[PROMREG_MAX];
-	int num_regs;
-	struct resource r;
-	int mid;
-    
-	local_irq_disable();
-	if((ie_node = prom_searchsiblings(prom_getchild(prom_root_node), "obio")) == 0 ||
-	   (ie_node = prom_getchild (ie_node)) == 0 ||
-	   (ie_node = prom_searchsiblings (ie_node, "interrupt")) == 0) {
-		prom_printf("Cannot find /obio/interrupt node\n");
-		prom_halt();
+	struct device_node *dp = of_find_node_by_name(NULL, "interrupt");
+	int len, i, mid, num_cpu_iregs;
+	const u32 *addr;
+
+	if (!dp) {
+		printk(KERN_ERR "sun4m_init_IRQ: No 'interrupt' node.\n");
+		return;
 	}
-	num_regs = prom_getproperty(ie_node, "reg", (char *) int_regs,
-				    sizeof(int_regs));
-	num_regs = (num_regs/sizeof(struct linux_prom_registers));
-    
-	/* Apply the obio ranges to these registers. */
-	prom_apply_obio_ranges(int_regs, num_regs);
-    
-	int_regs[4].phys_addr = int_regs[num_regs-1].phys_addr;
-	int_regs[4].reg_size = int_regs[num_regs-1].reg_size;
-	int_regs[4].which_io = int_regs[num_regs-1].which_io;
-	for(ie_node = 1; ie_node < 4; ie_node++) {
-		int_regs[ie_node].phys_addr = int_regs[ie_node-1].phys_addr + PAGE_SIZE;
-		int_regs[ie_node].reg_size = int_regs[ie_node-1].reg_size;
-		int_regs[ie_node].which_io = int_regs[ie_node-1].which_io;
+
+	addr = of_get_property(dp, "address", &len);
+	if (!addr) {
+		printk(KERN_ERR "sun4m_init_IRQ: No 'address' prop.\n");
+		return;
 	}
 
-	memset((char *)&r, 0, sizeof(struct resource));
-	/* Map the interrupt registers for all possible cpus. */
-	r.flags = int_regs[0].which_io;
-	r.start = int_regs[0].phys_addr;
-	sun4m_interrupts = (struct sun4m_intregs *) of_ioremap(&r, 0,
-	    PAGE_SIZE*SUN4M_NCPUS, "interrupts_percpu");
+	num_cpu_iregs = (len / sizeof(u32)) - 1;
+	for (i = 0; i < num_cpu_iregs; i++) {
+		sun4m_irq_percpu[i] = (void __iomem *)
+			(unsigned long) addr[i];
+	}
+	sun4m_irq_global = (void __iomem *)
+		(unsigned long) addr[num_cpu_iregs];
 
-	/* Map the system interrupt control registers. */
-	r.flags = int_regs[4].which_io;
-	r.start = int_regs[4].phys_addr;
-	of_ioremap(&r, 0, int_regs[4].reg_size, "interrupts_system");
+	local_irq_disable();
 
-	sun4m_interrupts->set = ~SUN4M_INT_MASKALL;
+	sbus_writel(~SUN4M_INT_MASKALL, &sun4m_irq_global->mask_set);
 	for (i = 0; !cpu_find_by_instance(i, NULL, &mid); i++)
-		sun4m_interrupts->cpu_intregs[mid].clear = ~0x17fff;
-
-	if (!cpu_find_by_instance(1, NULL, NULL)) {
-		/* system wide interrupts go to cpu 0, this should always
-		 * be safe because it is guaranteed to be fitted or OBP doesn't
-		 * come up
-		 *
-		 * Not sure, but writing here on SLAVIO systems may puke
-		 * so I don't do it unless there is more than 1 cpu.
-		 */
-		irq_rcvreg = (unsigned long *)
-				&sun4m_interrupts->undirected_target;
-		sun4m_interrupts->undirected_target = 0;
+		sbus_writel(~0x17fff, &sun4m_irq_percpu[mid]->clear);
+
+	if (num_cpu_iregs == 4) {
+		irq_rcvreg = (unsigned long *) &sun4m_irq_global->interrupt_target;
+		sbus_writel(0, &sun4m_irq_global->interrupt_target);
 	}
 	BTFIXUPSET_CALL(enable_irq, sun4m_enable_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(disable_irq, sun4m_disable_irq, BTFIXUPCALL_NORM);
@@ -442,5 +386,6 @@ void __init sun4m_init_IRQ(void)
 	BTFIXUPSET_CALL(clear_cpu_int, sun4m_clear_ipi, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(set_irq_udt, sun4m_set_udt, BTFIXUPCALL_NORM);
 #endif
+
 	/* Cannot enable interrupts until OBP ticker is disabled. */
 }
-- 
cgit v1.2.3


From f5f1085720c4799dd1437f78e28e40c8dd557bba Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sat, 13 Sep 2008 22:04:55 -0700
Subject: sparc32: Use PROM infrastructure for probing and mapping sun4d
 timers.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sun4d_irq.c | 139 +++++++++++++++++++++++++-----------------
 1 file changed, 83 insertions(+), 56 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c
index 12541f51fcf..4156bf6657f 100644
--- a/arch/sparc/kernel/sun4d_irq.c
+++ b/arch/sparc/kernel/sun4d_irq.c
@@ -45,7 +45,16 @@
 /* If you trust current SCSI layer to handle different SCSI IRQs, enable this. I don't trust it... -jj */
 /* #define DISTRIBUTE_IRQS */
 
-struct sun4d_timer_regs *sun4d_timers;
+struct sun4d_timer_regs {
+	u32	l10_timer_limit;
+	u32	l10_cur_countx;
+	u32	l10_limit_noclear;
+	u32	ctrl;
+	u32	l10_cur_count;
+};
+
+static struct sun4d_timer_regs __iomem *sun4d_timers;
+
 #define TIMER_IRQ	10
 
 #define MAX_STATIC_ALLOC	4
@@ -446,8 +455,7 @@ void __init sun4d_distribute_irqs(void)
  
 static void sun4d_clear_clock_irq(void)
 {
-	volatile unsigned int clear_intr;
-	clear_intr = sun4d_timers->l10_timer_limit;
+	sbus_readl(&sun4d_timers->l10_timer_limit);
 }
 
 static void sun4d_clear_profile_irq(int cpu)
@@ -460,71 +468,90 @@ static void sun4d_load_profile_irq(int cpu, unsigned int limit)
 	bw_set_prof_limit(cpu, limit);
 }
 
-static void __init sun4d_init_timers(irq_handler_t counter_fn)
+static void __init sun4d_load_profile_irqs(void)
 {
-	int irq;
-	int cpu;
-	struct resource r;
-	int mid;
+	int cpu = 0, mid;
 
-	/* Map the User Timer registers. */
-	memset(&r, 0, sizeof(r));
+	while (!cpu_find_by_instance(cpu, NULL, &mid)) {
+		sun4d_load_profile_irq(mid >> 3, 0);
+		cpu++;
+	}
+}
+
+static void __init sun4d_fixup_trap_table(void)
+{
 #ifdef CONFIG_SMP
-	r.start = CSR_BASE(boot_cpu_id)+BW_TIMER_LIMIT;
-#else
-	r.start = CSR_BASE(0)+BW_TIMER_LIMIT;
+	unsigned long flags;
+	extern unsigned long lvl14_save[4];
+	struct tt_entry *trap_table = &sparc_ttable[SP_TRAP_IRQ1 + (14 - 1)];
+	extern unsigned int real_irq_entry[], smp4d_ticker[];
+	extern unsigned int patchme_maybe_smp_msg[];
+
+	/* Adjust so that we jump directly to smp4d_ticker */
+	lvl14_save[2] += smp4d_ticker - real_irq_entry;
+
+	/* For SMP we use the level 14 ticker, however the bootup code
+	 * has copied the firmware's level 14 vector into the boot cpu's
+	 * trap table, we must fix this now or we get squashed.
+	 */
+	local_irq_save(flags);
+	patchme_maybe_smp_msg[0] = 0x01000000; /* NOP out the branch */
+	trap_table->inst_one = lvl14_save[0];
+	trap_table->inst_two = lvl14_save[1];
+	trap_table->inst_three = lvl14_save[2];
+	trap_table->inst_four = lvl14_save[3];
+	local_flush_cache_all();
+	local_irq_restore(flags);
 #endif
-	r.flags = 0xf;
-	sun4d_timers = (struct sun4d_timer_regs *) of_ioremap(&r, 0,
-	    PAGE_SIZE, "user timer");
+}
+
+static void __init sun4d_init_timers(irq_handler_t counter_fn)
+{
+	struct device_node *dp;
+	struct resource res;
+	const u32 *reg;
+	int err;
+
+	dp = of_find_node_by_name(NULL, "cpu-unit");
+	if (!dp) {
+		prom_printf("sun4d_init_timers: Unable to find cpu-unit\n");
+		prom_halt();
+	}
+
+	/* Which cpu-unit we use is arbitrary, we can view the bootbus timer
+	 * registers via any cpu's mapping.  The first 'reg' property is the
+	 * bootbus.
+	 */
+	reg = of_get_property(dp, "reg", NULL);
+	if (!reg) {
+		prom_printf("sun4d_init_timers: No reg property\n");
+		prom_halt();
+	}
+
+	res.start = reg[1];
+	res.end = reg[2] - 1;
+	res.flags = reg[0] & 0xff;
+	sun4d_timers = of_ioremap(&res, BW_TIMER_LIMIT,
+				  sizeof(struct sun4d_timer_regs), "user timer");
+	if (!sun4d_timers) {
+		prom_printf("sun4d_init_timers: Can't map timer regs\n");
+		prom_halt();
+	}
+
+	sbus_writel((((1000000/HZ) + 1) << 10), &sun4d_timers->l10_timer_limit);
 
-	sun4d_timers->l10_timer_limit =  (((1000000/HZ) + 1) << 10);
 	master_l10_counter = &sun4d_timers->l10_cur_count;
 	master_l10_limit = &sun4d_timers->l10_timer_limit;
 
-	irq = request_irq(TIMER_IRQ,
-			  counter_fn,
+	err = request_irq(TIMER_IRQ, counter_fn,
 			  (IRQF_DISABLED | SA_STATIC_ALLOC),
 			  "timer", NULL);
-	if (irq) {
-		prom_printf("time_init: unable to attach IRQ%d\n",TIMER_IRQ);
+	if (err) {
+		prom_printf("sun4d_init_timers: request_irq() failed with %d\n", err);
 		prom_halt();
 	}
-	
-	/* Enable user timer free run for CPU 0 in BW */
-	/* bw_set_ctrl(0, bw_get_ctrl(0) | BW_CTRL_USER_TIMER); */
-
-	cpu = 0;
-	while (!cpu_find_by_instance(cpu, NULL, &mid)) {
-		sun4d_load_profile_irq(mid >> 3, 0);
-		cpu++;
-	}
-		
-#ifdef CONFIG_SMP
-	{
-		unsigned long flags;
-		extern unsigned long lvl14_save[4];
-		struct tt_entry *trap_table = &sparc_ttable[SP_TRAP_IRQ1 + (14 - 1)];
-		extern unsigned int real_irq_entry[], smp4d_ticker[];
-		extern unsigned int patchme_maybe_smp_msg[];
-
-		/* Adjust so that we jump directly to smp4d_ticker */
-		lvl14_save[2] += smp4d_ticker - real_irq_entry;
-
-		/* For SMP we use the level 14 ticker, however the bootup code
-		 * has copied the firmware's level 14 vector into the boot cpu's
-		 * trap table, we must fix this now or we get squashed.
-		 */
-		local_irq_save(flags);
-		patchme_maybe_smp_msg[0] = 0x01000000; /* NOP out the branch */
-		trap_table->inst_one = lvl14_save[0];
-		trap_table->inst_two = lvl14_save[1];
-		trap_table->inst_three = lvl14_save[2];
-		trap_table->inst_four = lvl14_save[3];
-		local_flush_cache_all();
-		local_irq_restore(flags);
-	}
-#endif
+	sun4d_load_profile_irqs();
+	sun4d_fixup_trap_table();
 }
 
 void __init sun4d_init_sbi_irq(void)
-- 
cgit v1.2.3


From f8376e933c4e80663f6f66a5b5dd90390a0feba2 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sat, 13 Sep 2008 22:05:25 -0700
Subject: sparc32: Remove some SMP ifdefs in sun4d_irq.c

Always do the sbus_tid[] handling.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sun4d_irq.c | 42 ++++++++++++++++--------------------------
 1 file changed, 16 insertions(+), 26 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c
index 4156bf6657f..6e3bf6eee54 100644
--- a/arch/sparc/kernel/sun4d_irq.c
+++ b/arch/sparc/kernel/sun4d_irq.c
@@ -60,9 +60,7 @@ static struct sun4d_timer_regs __iomem *sun4d_timers;
 #define MAX_STATIC_ALLOC	4
 extern struct irqaction static_irqaction[MAX_STATIC_ALLOC];
 extern int static_irq_count;
-#ifdef CONFIG_SMP
 static unsigned char sbus_tid[32];
-#endif
 
 static struct irqaction *irq_action[NR_IRQS];
 extern spinlock_t irq_action_lock;
@@ -81,9 +79,9 @@ static int sbus_to_pil[] = {
 };
 
 static int nsbi;
-#ifdef CONFIG_SMP
+
+/* Exported for sun4d_smp.c */
 DEFINE_SPINLOCK(sun4d_imsk_lock);
-#endif
 
 int show_sun4d_interrupts(struct seq_file *p, void *v)
 {
@@ -349,36 +347,28 @@ out:
 
 static void sun4d_disable_irq(unsigned int irq)
 {
-#ifdef CONFIG_SMP
 	int tid = sbus_tid[(irq >> 5) - 1];
 	unsigned long flags;
-#endif	
 	
-	if (irq < NR_IRQS) return;
-#ifdef CONFIG_SMP
+	if (irq < NR_IRQS)
+		return;
+
 	spin_lock_irqsave(&sun4d_imsk_lock, flags);
 	cc_set_imsk_other(tid, cc_get_imsk_other(tid) | (1 << sbus_to_pil[(irq >> 2) & 7]));
 	spin_unlock_irqrestore(&sun4d_imsk_lock, flags);
-#else		
-	cc_set_imsk(cc_get_imsk() | (1 << sbus_to_pil[(irq >> 2) & 7]));
-#endif
 }
 
 static void sun4d_enable_irq(unsigned int irq)
 {
-#ifdef CONFIG_SMP
 	int tid = sbus_tid[(irq >> 5) - 1];
 	unsigned long flags;
-#endif	
 	
-	if (irq < NR_IRQS) return;
-#ifdef CONFIG_SMP
+	if (irq < NR_IRQS)
+		return;
+
 	spin_lock_irqsave(&sun4d_imsk_lock, flags);
 	cc_set_imsk_other(tid, cc_get_imsk_other(tid) & ~(1 << sbus_to_pil[(irq >> 2) & 7]));
 	spin_unlock_irqrestore(&sun4d_imsk_lock, flags);
-#else		
-	cc_set_imsk(cc_get_imsk() & ~(1 << sbus_to_pil[(irq >> 2) & 7]));
-#endif
 }
 
 #ifdef CONFIG_SMP
@@ -557,6 +547,11 @@ static void __init sun4d_init_timers(irq_handler_t counter_fn)
 void __init sun4d_init_sbi_irq(void)
 {
 	struct device_node *dp;
+	int target_cpu = 0;
+
+#ifdef CONFIG_SMP
+	target_cpu = boot_cpu_id;
+#endif
 
 	nsbi = 0;
 	for_each_node_by_name(dp, "sbi")
@@ -571,14 +566,9 @@ void __init sun4d_init_sbi_irq(void)
 		int board = of_getintprop_default(dp, "board#", 0);
 		unsigned int mask;
 
-#ifdef CONFIG_SMP	
-		{
-			extern unsigned char boot_cpu_id;
-		
-			set_sbi_tid(devid, boot_cpu_id << 3);
-			sbus_tid[board] = boot_cpu_id;
-		}
-#endif
+		set_sbi_tid(devid, target_cpu << 3);
+		sbus_tid[board] = target_cpu;
+
 		/* Get rid of pending irqs from PROM */
 		mask = acquire_sbi(devid, 0xffffffff);
 		if (mask) {
-- 
cgit v1.2.3


From a73554aedb8f69bd2024cbbf74980582bb91afb4 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sat, 13 Sep 2008 22:07:40 -0700
Subject: sparc32: Remove #if 0'd code from sun4c_irq.c

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sun4c_irq.c | 9 ---------
 1 file changed, 9 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sun4c_irq.c b/arch/sparc/kernel/sun4c_irq.c
index 722d2516f28..5602972f357 100644
--- a/arch/sparc/kernel/sun4c_irq.c
+++ b/arch/sparc/kernel/sun4c_irq.c
@@ -36,11 +36,6 @@
 #include <asm/idprom.h>
 #include <asm/machines.h>
 
-#if 0
-static struct resource sun4c_timer_eb = { "sun4c_timer" };
-static struct resource sun4c_intr_eb = { "sun4c_intr" };
-#endif
-
 /*
  * Bit field defines for the interrupt registers on various
  * Sparc machines.
@@ -173,10 +168,6 @@ static void __init sun4c_init_timers(irq_handler_t counter_fn)
 		prom_halt();
 	}
     
-#if 0
-	/* This does not work on 4/330 */
-	sun4c_enable_irq(10);
-#endif
 	claim_ticker14(NULL, PROFILE_IRQ, 0);
 }
 
-- 
cgit v1.2.3


From 1de937a536ea1a132d22dc198a9e07d208d40a29 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sat, 13 Sep 2008 22:07:56 -0700
Subject: sparc32: Call sun4m_clear_profile_irq() directly from sun4m_smp.c

This is the only use of the clear_profile_irq() btfixup entry,
which just eats up lots of dead space on other platform types.

A subsequent commit will delete the other implementations and
the btfixup entry as well.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sun4m_irq.c | 3 ++-
 arch/sparc/kernel/sun4m_smp.c | 4 +++-
 2 files changed, 5 insertions(+), 2 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c
index 39d40e96d39..8e1ecc6def2 100644
--- a/arch/sparc/kernel/sun4m_irq.c
+++ b/arch/sparc/kernel/sun4m_irq.c
@@ -264,7 +264,8 @@ static void sun4m_clear_clock_irq(void)
 	sbus_readl(&timers_global->l10_limit);
 }
 
-static void sun4m_clear_profile_irq(int cpu)
+/* Exported for sun4m_smp.c */
+void sun4m_clear_profile_irq(int cpu)
 {
 	sbus_readl(&timers_percpu[cpu]->l14_limit);
 }
diff --git a/arch/sparc/kernel/sun4m_smp.c b/arch/sparc/kernel/sun4m_smp.c
index a14a76ac7f3..e3c0be17729 100644
--- a/arch/sparc/kernel/sun4m_smp.c
+++ b/arch/sparc/kernel/sun4m_smp.c
@@ -313,6 +313,8 @@ void smp4m_cross_call_irq(void)
 	ccall_info.processors_out[i] = 1;
 }
 
+extern void sun4m_clear_profile_irq(int cpu);
+
 void smp4m_percpu_timer_interrupt(struct pt_regs *regs)
 {
 	struct pt_regs *old_regs;
@@ -320,7 +322,7 @@ void smp4m_percpu_timer_interrupt(struct pt_regs *regs)
 
 	old_regs = set_irq_regs(regs);
 
-	clear_profile_irq(cpu);
+	sun4m_clear_profile_irq(cpu);
 
 	profile_tick(CPU_PROFILING);
 
-- 
cgit v1.2.3


From 76954261ba907950cb5216e5c3075b5ba03c1a6b Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sat, 13 Sep 2008 22:07:06 -0700
Subject: sparc32: Kill clear_profile_irq btfixup entry.

Unused.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/irq.h       | 6 ------
 arch/sparc/kernel/pcic.c      | 6 ------
 arch/sparc/kernel/sun4c_irq.c | 6 ------
 arch/sparc/kernel/sun4d_irq.c | 6 ------
 arch/sparc/kernel/sun4m_irq.c | 1 -
 5 files changed, 25 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/irq.h b/arch/sparc/kernel/irq.h
index 32ef3ebd0a8..db751388153 100644
--- a/arch/sparc/kernel/irq.h
+++ b/arch/sparc/kernel/irq.h
@@ -13,7 +13,6 @@ BTFIXUPDEF_CALL(void, enable_irq, unsigned int)
 BTFIXUPDEF_CALL(void, disable_pil_irq, unsigned int)
 BTFIXUPDEF_CALL(void, enable_pil_irq, unsigned int)
 BTFIXUPDEF_CALL(void, clear_clock_irq, void)
-BTFIXUPDEF_CALL(void, clear_profile_irq, int)
 BTFIXUPDEF_CALL(void, load_profile_irq, int, unsigned int)
 
 static inline void __disable_irq(unsigned int irq)
@@ -41,11 +40,6 @@ static inline void clear_clock_irq(void)
 	BTFIXUP_CALL(clear_clock_irq)();
 }
 
-static inline void clear_profile_irq(int irq)
-{
-	BTFIXUP_CALL(clear_profile_irq)(irq);
-}
-
 static inline void load_profile_irq(int cpu, int limit)
 {
 	BTFIXUP_CALL(load_profile_irq)(cpu, limit);
diff --git a/arch/sparc/kernel/pcic.c b/arch/sparc/kernel/pcic.c
index e5950b03df1..462584e55fb 100644
--- a/arch/sparc/kernel/pcic.c
+++ b/arch/sparc/kernel/pcic.c
@@ -897,11 +897,6 @@ static void pcic_enable_irq(unsigned int irq_nr)
 	local_irq_restore(flags);
 }
 
-static void pcic_clear_profile_irq(int cpu)
-{
-	printk("PCIC: unimplemented code: FILE=%s LINE=%d", __FILE__, __LINE__);
-}
-
 static void pcic_load_profile_irq(int cpu, unsigned int limit)
 {
 	printk("PCIC: unimplemented code: FILE=%s LINE=%d", __FILE__, __LINE__);
@@ -927,7 +922,6 @@ void __init sun4m_pci_init_IRQ(void)
 	BTFIXUPSET_CALL(enable_pil_irq, pcic_enable_pil_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(disable_pil_irq, pcic_disable_pil_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(clear_clock_irq, pcic_clear_clock_irq, BTFIXUPCALL_NORM);
-	BTFIXUPSET_CALL(clear_profile_irq, pcic_clear_profile_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(load_profile_irq, pcic_load_profile_irq, BTFIXUPCALL_NORM);
 }
 
diff --git a/arch/sparc/kernel/sun4c_irq.c b/arch/sparc/kernel/sun4c_irq.c
index 5602972f357..6f28a13829c 100644
--- a/arch/sparc/kernel/sun4c_irq.c
+++ b/arch/sparc/kernel/sun4c_irq.c
@@ -131,11 +131,6 @@ static void sun4c_clear_clock_irq(void)
 	clear_intr = sun4c_timers->timer_limit10;
 }
 
-static void sun4c_clear_profile_irq(int cpu)
-{
-	/* Errm.. not sure how to do this.. */
-}
-
 static void sun4c_load_profile_irq(int cpu, unsigned int limit)
 {
 	/* Errm.. not sure how to do this.. */
@@ -204,7 +199,6 @@ void __init sun4c_init_IRQ(void)
 	BTFIXUPSET_CALL(enable_pil_irq, sun4c_enable_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(disable_pil_irq, sun4c_disable_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(clear_clock_irq, sun4c_clear_clock_irq, BTFIXUPCALL_NORM);
-	BTFIXUPSET_CALL(clear_profile_irq, sun4c_clear_profile_irq, BTFIXUPCALL_NOP);
 	BTFIXUPSET_CALL(load_profile_irq, sun4c_load_profile_irq, BTFIXUPCALL_NOP);
 	sparc_init_timers = sun4c_init_timers;
 #ifdef CONFIG_SMP
diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c
index 6e3bf6eee54..d376d380ac0 100644
--- a/arch/sparc/kernel/sun4d_irq.c
+++ b/arch/sparc/kernel/sun4d_irq.c
@@ -448,11 +448,6 @@ static void sun4d_clear_clock_irq(void)
 	sbus_readl(&sun4d_timers->l10_timer_limit);
 }
 
-static void sun4d_clear_profile_irq(int cpu)
-{
-	bw_get_prof_limit(cpu);
-}
-
 static void sun4d_load_profile_irq(int cpu, unsigned int limit)
 {
 	bw_set_prof_limit(cpu, limit);
@@ -585,7 +580,6 @@ void __init sun4d_init_IRQ(void)
 	BTFIXUPSET_CALL(enable_irq, sun4d_enable_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(disable_irq, sun4d_disable_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(clear_clock_irq, sun4d_clear_clock_irq, BTFIXUPCALL_NORM);
-	BTFIXUPSET_CALL(clear_profile_irq, sun4d_clear_profile_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(load_profile_irq, sun4d_load_profile_irq, BTFIXUPCALL_NORM);
 	sparc_init_timers = sun4d_init_timers;
 #ifdef CONFIG_SMP
diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c
index 8e1ecc6def2..ab309eca09c 100644
--- a/arch/sparc/kernel/sun4m_irq.c
+++ b/arch/sparc/kernel/sun4m_irq.c
@@ -379,7 +379,6 @@ void __init sun4m_init_IRQ(void)
 	BTFIXUPSET_CALL(enable_pil_irq, sun4m_enable_pil_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(disable_pil_irq, sun4m_disable_pil_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(clear_clock_irq, sun4m_clear_clock_irq, BTFIXUPCALL_NORM);
-	BTFIXUPSET_CALL(clear_profile_irq, sun4m_clear_profile_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(load_profile_irq, sun4m_load_profile_irq, BTFIXUPCALL_NORM);
 	sparc_init_timers = sun4m_init_timers;
 #ifdef CONFIG_SMP
-- 
cgit v1.2.3


From b218fa0e9c2ad94b4e9ab5517a9210f9fa3745e2 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sat, 13 Sep 2008 22:08:26 -0700
Subject: sparc32: Stop calling claim_ticker14() from sun4c_irq.c

Since the first argument is always NULL, the only side effect
is to disable the PROFILE_IRQ, so just do that directly.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sun4c_irq.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sun4c_irq.c b/arch/sparc/kernel/sun4c_irq.c
index 6f28a13829c..ae3149ecaec 100644
--- a/arch/sparc/kernel/sun4c_irq.c
+++ b/arch/sparc/kernel/sun4c_irq.c
@@ -163,7 +163,7 @@ static void __init sun4c_init_timers(irq_handler_t counter_fn)
 		prom_halt();
 	}
     
-	claim_ticker14(NULL, PROFILE_IRQ, 0);
+	sun4c_disable_irq(PROFILE_IRQ);
 }
 
 #ifdef CONFIG_SMP
-- 
cgit v1.2.3


From 5ff0d55f93f8119b71b33d4c444cf5105d4c1d12 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Tue, 9 Sep 2008 00:04:35 -0700
Subject: sparc32: Delete claim_ticker14().

No more users.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/tick14.c | 46 ----------------------------------------------
 1 file changed, 46 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/tick14.c b/arch/sparc/kernel/tick14.c
index 77a4f3aeec6..138bbf5f872 100644
--- a/arch/sparc/kernel/tick14.c
+++ b/arch/sparc/kernel/tick14.c
@@ -1,30 +1,12 @@
 /* tick14.c
- * linux/arch/sparc/kernel/tick14.c
  *
  * Copyright (C) 1996 David Redman (djhr@tadpole.co.uk)
  *
  * This file handles the Sparc specific level14 ticker
  * This is really useful for profiling OBP uses it for keyboard
  * aborts and other stuff.
- *
- *
  */
-#include <linux/errno.h>
-#include <linux/sched.h>
 #include <linux/kernel.h>
-#include <linux/param.h>
-#include <linux/string.h>
-#include <linux/mm.h>
-#include <linux/timex.h>
-#include <linux/interrupt.h>
-
-#include <asm/oplib.h>
-#include <asm/timer.h>
-#include <asm/system.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-
-#include "irq.h"
 
 extern unsigned long lvl14_save[5];
 static unsigned long *linux_lvl14 = NULL;
@@ -55,31 +37,3 @@ void install_obp_ticker(void)
 	linux_lvl14[2] =  obp_lvl14[2];
 	linux_lvl14[3] =  obp_lvl14[3]; 
 }
-
-void claim_ticker14(irq_handler_t handler,
-		    int irq_nr, unsigned int timeout )
-{
-	int cpu = smp_processor_id();
-
-	/* first we copy the obp handler instructions
-	 */
-	__disable_irq(irq_nr);
-	if (!handler)
-		return;
-    
-	linux_lvl14 = (unsigned long *)lvl14_save[4];
-	obp_lvl14[0] = linux_lvl14[0];
-	obp_lvl14[1] = linux_lvl14[1];
-	obp_lvl14[2] = linux_lvl14[2];
-	obp_lvl14[3] = linux_lvl14[3];
-
-	if (!request_irq(irq_nr,
-			 handler,
-			 (IRQF_DISABLED | SA_STATIC_ALLOC),
-			 "counter14",
-			 NULL)) {
-		install_linux_ticker();
-		load_profile_irq(cpu, timeout);
-		__enable_irq(irq_nr);
-	}
-}
-- 
cgit v1.2.3


From 45bb5a7cbfa28dedc07730d6ecedbd574faf5459 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sat, 13 Sep 2008 22:43:48 -0700
Subject: sparc32: Use PROM device probing for sun4c interrupt register.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sun4c_irq.c | 47 +++++++++++++++++++------------------------
 1 file changed, 21 insertions(+), 26 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sun4c_irq.c b/arch/sparc/kernel/sun4c_irq.c
index ae3149ecaec..8033132eda8 100644
--- a/arch/sparc/kernel/sun4c_irq.c
+++ b/arch/sparc/kernel/sun4c_irq.c
@@ -59,7 +59,7 @@
  *
  * so don't go making it static, like I tried. sigh.
  */
-unsigned char *interrupt_enable = NULL;
+unsigned char __iomem *interrupt_enable = NULL;
 
 static void sun4c_disable_irq(unsigned int irq_nr)
 {
@@ -68,7 +68,7 @@ static void sun4c_disable_irq(unsigned int irq_nr)
     
 	local_irq_save(flags);
 	irq_nr &= (NR_IRQS - 1);
-	current_mask = *interrupt_enable;
+	current_mask = sbus_readb(interrupt_enable);
 	switch(irq_nr) {
 	case 1:
 		new_mask = ((current_mask) & (~(SUN4C_INT_E1)));
@@ -86,7 +86,7 @@ static void sun4c_disable_irq(unsigned int irq_nr)
 		local_irq_restore(flags);
 		return;
 	}
-	*interrupt_enable = new_mask;
+	sbus_writeb(new_mask, interrupt_enable);
 	local_irq_restore(flags);
 }
 
@@ -97,7 +97,7 @@ static void sun4c_enable_irq(unsigned int irq_nr)
     
 	local_irq_save(flags);
 	irq_nr &= (NR_IRQS - 1);
-	current_mask = *interrupt_enable;
+	current_mask = sbus_readb(interrupt_enable);
 	switch(irq_nr) {
 	case 1:
 		new_mask = ((current_mask) | SUN4C_INT_E1);
@@ -115,7 +115,7 @@ static void sun4c_enable_irq(unsigned int irq_nr)
 		local_irq_restore(flags);
 		return;
 	}
-	*interrupt_enable = new_mask;
+	sbus_writeb(new_mask, interrupt_enable);
 	local_irq_restore(flags);
 }
 
@@ -172,27 +172,22 @@ static void sun4c_nop(void) {}
 
 void __init sun4c_init_IRQ(void)
 {
-	struct linux_prom_registers int_regs[2];
-	int ie_node;
-	struct resource phyres;
-
-	ie_node = prom_searchsiblings (prom_getchild(prom_root_node),
-				       "interrupt-enable");
-	if(ie_node == 0)
-		panic("Cannot find /interrupt-enable node");
-
-	/* Depending on the "address" property is bad news... */
-	interrupt_enable = NULL;
-	if (prom_getproperty(ie_node, "reg", (char *) int_regs,
-			     sizeof(int_regs)) != -1) {
-		memset(&phyres, 0, sizeof(struct resource));
-		phyres.flags = int_regs[0].which_io;
-		phyres.start = int_regs[0].phys_addr;
-		interrupt_enable = (char *) of_ioremap(&phyres, 0,
-		    int_regs[0].reg_size, "sun4c_intr");
+	struct device_node *dp;
+	const u32 *addr;
+
+	dp = of_find_node_by_name(NULL, "interrupt-enable");
+	if (!dp) {
+		prom_printf("sun4c_init_IRQ: Unable to find interrupt-enable\n");
+		prom_halt();
+	}
+
+	addr = of_get_property(dp, "address", NULL);
+	if (!addr) {
+		prom_printf("sun4c_init_IRQ: No address property\n");
+		prom_halt();
 	}
-	if (!interrupt_enable)
-		panic("Cannot map interrupt_enable");
+
+	interrupt_enable = (void __iomem *) (unsigned long) addr[0];
 
 	BTFIXUPSET_CALL(enable_irq, sun4c_enable_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(disable_irq, sun4c_disable_irq, BTFIXUPCALL_NORM);
@@ -206,6 +201,6 @@ void __init sun4c_init_IRQ(void)
 	BTFIXUPSET_CALL(clear_cpu_int, sun4c_nop, BTFIXUPCALL_NOP);
 	BTFIXUPSET_CALL(set_irq_udt, sun4c_nop, BTFIXUPCALL_NOP);
 #endif
-	*interrupt_enable = (SUN4C_INT_ENABLE);
+	sbus_writeb(SUN4C_INT_ENABLE, interrupt_enable);
 	/* Cannot enable interrupts until OBP ticker is disabled. */
 }
-- 
cgit v1.2.3


From 8bd8deead7f00006781c366887da8cf6a02c69ce Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sat, 13 Sep 2008 22:47:43 -0700
Subject: sparc32: Use PROM device probing for sun4c timers.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sun4c_irq.c | 59 ++++++++++++++++++++++++++++---------------
 1 file changed, 39 insertions(+), 20 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sun4c_irq.c b/arch/sparc/kernel/sun4c_irq.c
index 8033132eda8..92096ba31d5 100644
--- a/arch/sparc/kernel/sun4c_irq.c
+++ b/arch/sparc/kernel/sun4c_irq.c
@@ -119,16 +119,18 @@ static void sun4c_enable_irq(unsigned int irq_nr)
 	local_irq_restore(flags);
 }
 
-#define TIMER_IRQ  	10    /* Also at level 14, but we ignore that one. */
-#define PROFILE_IRQ	14    /* Level14 ticker.. used by OBP for polling */
+struct sun4c_timer_info {
+	u32		l10_count;
+	u32		l10_limit;
+	u32		l14_count;
+	u32		l14_limit;
+};
 
-volatile struct sun4c_timer_info *sun4c_timers;
+static struct sun4c_timer_info __iomem *sun4c_timers;
 
 static void sun4c_clear_clock_irq(void)
 {
-	volatile unsigned int clear_intr;
-
-	clear_intr = sun4c_timers->timer_limit10;
+	sbus_readl(&sun4c_timers->l10_limit);
 }
 
 static void sun4c_load_profile_irq(int cpu, unsigned int limit)
@@ -138,32 +140,49 @@ static void sun4c_load_profile_irq(int cpu, unsigned int limit)
 
 static void __init sun4c_init_timers(irq_handler_t counter_fn)
 {
-	int irq;
+	const struct linux_prom_irqs *irq;
+	struct device_node *dp;
+	const u32 *addr;
+	int err;
 
-	/* Map the Timer chip, this is implemented in hardware inside
-	 * the cache chip on the sun4c.
-	 */
-	sun4c_timers = ioremap(SUN_TIMER_PHYSADDR,
-	    sizeof(struct sun4c_timer_info));
+	dp = of_find_node_by_name(NULL, "counter-timer");
+	if (!dp) {
+		prom_printf("sun4c_init_timers: Unable to find counter-timer\n");
+		prom_halt();
+	}
+
+	addr = of_get_property(dp, "address", NULL);
+	if (!addr) {
+		prom_printf("sun4c_init_timers: No address property\n");
+		prom_halt();
+	}
+
+	sun4c_timers = (void __iomem *) (unsigned long) addr[0];
+
+	irq = of_get_property(dp, "intr", NULL);
+	if (!irq) {
+		prom_printf("sun4c_init_timers: No intr property\n");
+		prom_halt();
+	}
 
 	/* Have the level 10 timer tick at 100HZ.  We don't touch the
 	 * level 14 timer limit since we are letting the prom handle
 	 * them until we have a real console driver so L1-A works.
 	 */
-	sun4c_timers->timer_limit10 = (((1000000/HZ) + 1) << 10);
-	master_l10_counter = &sun4c_timers->cur_count10;
-	master_l10_limit = &sun4c_timers->timer_limit10;
+	sbus_writel((((1000000/HZ) + 1) << 10), &sun4c_timers->l10_limit);
+
+	master_l10_counter = &sun4c_timers->l10_count;
+	master_l10_limit = &sun4c_timers->l10_limit;
 
-	irq = request_irq(TIMER_IRQ,
-			  counter_fn,
+	err = request_irq(irq[0].pri, counter_fn,
 			  (IRQF_DISABLED | SA_STATIC_ALLOC),
 			  "timer", NULL);
-	if (irq) {
-		prom_printf("time_init: unable to attach IRQ%d\n",TIMER_IRQ);
+	if (err) {
+		prom_printf("sun4c_init_timers: request_irq() fails with %d\n", err);
 		prom_halt();
 	}
     
-	sun4c_disable_irq(PROFILE_IRQ);
+	sun4c_disable_irq(irq[1].pri);
 }
 
 #ifdef CONFIG_SMP
-- 
cgit v1.2.3


From c7e606a8f863b2119176674610618dad3d80a16d Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sat, 13 Sep 2008 22:48:04 -0700
Subject: sparc32: Delete master_l10_limit.

It is only set, never used.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sun4c_irq.c | 1 -
 arch/sparc/kernel/sun4d_irq.c | 1 -
 arch/sparc/kernel/sun4m_irq.c | 1 -
 arch/sparc/kernel/time.c      | 1 -
 4 files changed, 4 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sun4c_irq.c b/arch/sparc/kernel/sun4c_irq.c
index 92096ba31d5..5dc8a576948 100644
--- a/arch/sparc/kernel/sun4c_irq.c
+++ b/arch/sparc/kernel/sun4c_irq.c
@@ -172,7 +172,6 @@ static void __init sun4c_init_timers(irq_handler_t counter_fn)
 	sbus_writel((((1000000/HZ) + 1) << 10), &sun4c_timers->l10_limit);
 
 	master_l10_counter = &sun4c_timers->l10_count;
-	master_l10_limit = &sun4c_timers->l10_limit;
 
 	err = request_irq(irq[0].pri, counter_fn,
 			  (IRQF_DISABLED | SA_STATIC_ALLOC),
diff --git a/arch/sparc/kernel/sun4d_irq.c b/arch/sparc/kernel/sun4d_irq.c
index d376d380ac0..d3cb76ce418 100644
--- a/arch/sparc/kernel/sun4d_irq.c
+++ b/arch/sparc/kernel/sun4d_irq.c
@@ -526,7 +526,6 @@ static void __init sun4d_init_timers(irq_handler_t counter_fn)
 	sbus_writel((((1000000/HZ) + 1) << 10), &sun4d_timers->l10_timer_limit);
 
 	master_l10_counter = &sun4d_timers->l10_cur_count;
-	master_l10_limit = &sun4d_timers->l10_timer_limit;
 
 	err = request_irq(TIMER_IRQ, counter_fn,
 			  (IRQF_DISABLED | SA_STATIC_ALLOC),
diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c
index ab309eca09c..c09ec39d68a 100644
--- a/arch/sparc/kernel/sun4m_irq.c
+++ b/arch/sparc/kernel/sun4m_irq.c
@@ -303,7 +303,6 @@ static void __init sun4m_init_timers(irq_handler_t counter_fn)
 	sbus_writel((((1000000/HZ) + 1) << 10), &timers_global->l10_limit);
 
 	master_l10_counter = &timers_global->l10_count;
-	master_l10_limit = &timers_global->l10_limit;
 
 	err = request_irq(TIMER_IRQ, counter_fn,
 			  (IRQF_DISABLED | SA_STATIC_ALLOC), "timer", NULL);
diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c
index fa54d585f55..62c1d94cb43 100644
--- a/arch/sparc/kernel/time.c
+++ b/arch/sparc/kernel/time.c
@@ -73,7 +73,6 @@ unsigned long profile_pc(struct pt_regs *regs)
 EXPORT_SYMBOL(profile_pc);
 
 __volatile__ unsigned int *master_l10_counter;
-__volatile__ unsigned int *master_l10_limit;
 
 /*
  * timer_interrupt() needs to keep up the real-time clock,
-- 
cgit v1.2.3


From e7913de9285a4e40733cdabbe62b6f1fa3bbdf01 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Sat, 13 Sep 2008 22:48:41 -0700
Subject: sparc32: Kill irq_rcvreg from sun4m_irq.c

Unused.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sun4m_irq.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c
index c09ec39d68a..c6096fc70c6 100644
--- a/arch/sparc/kernel/sun4m_irq.c
+++ b/arch/sparc/kernel/sun4m_irq.c
@@ -59,9 +59,6 @@ struct sun4m_irq_global {
 struct sun4m_irq_percpu __iomem *sun4m_irq_percpu[SUN4M_NCPUS];
 struct sun4m_irq_global __iomem *sun4m_irq_global;
 
-static unsigned long dummy;
-unsigned long *irq_rcvreg = &dummy;
-
 /* Dave Redman (djhr@tadpole.co.uk)
  * The sun4m interrupt registers.
  */
@@ -369,10 +366,9 @@ void __init sun4m_init_IRQ(void)
 	for (i = 0; !cpu_find_by_instance(i, NULL, &mid); i++)
 		sbus_writel(~0x17fff, &sun4m_irq_percpu[mid]->clear);
 
-	if (num_cpu_iregs == 4) {
-		irq_rcvreg = (unsigned long *) &sun4m_irq_global->interrupt_target;
+	if (num_cpu_iregs == 4)
 		sbus_writel(0, &sun4m_irq_global->interrupt_target);
-	}
+
 	BTFIXUPSET_CALL(enable_irq, sun4m_enable_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(disable_irq, sun4m_disable_irq, BTFIXUPCALL_NORM);
 	BTFIXUPSET_CALL(enable_pil_irq, sun4m_enable_pil_irq, BTFIXUPCALL_NORM);
-- 
cgit v1.2.3


From 778b1c65bfa2bfe4018394480f97d387e8f00a91 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@davemloft.net>
Date: Fri, 19 Sep 2008 15:33:21 -0700
Subject: sparc32: Add more extensive documentation of sun4m interrupts.

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sun4m_irq.c | 53 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c
index c6096fc70c6..ec66d4aab09 100644
--- a/arch/sparc/kernel/sun4m_irq.c
+++ b/arch/sparc/kernel/sun4m_irq.c
@@ -87,6 +87,59 @@ struct sun4m_irq_global __iomem *sun4m_irq_global;
 #define SUN4M_INT_SBUS(x)	(1 << (x+7))
 #define SUN4M_INT_VME(x)	(1 << (x))
 
+/* Interrupt level assignment on sun4m:
+ *
+ *	level		source
+ * ------------------------------------------------------------
+ *        1		softint-1
+ *	  2		softint-2, VME/SBUS level 1
+ *	  3		softint-3, VME/SBUS level 2
+ *	  4		softint-4, onboard SCSI
+ *	  5		softint-5, VME/SBUS level 3
+ *	  6		softint-6, onboard ETHERNET
+ *	  7		softint-7, VME/SBUS level 4
+ *	  8		softint-8, onboard VIDEO
+ *	  9		softint-9, VME/SBUS level 5, Module Interrupt
+ *	 10		softint-10, system counter/timer
+ *	 11		softint-11, VME/SBUS level 6, Floppy
+ *	 12		softint-12, Keyboard/Mouse, Serial
+ *	 13		softint-13, VME/SBUS level 7, ISDN Audio
+ *	 14		softint-14, per-processor counter/timer
+ *	 15		softint-15, Asynchronous Errors (broadcast)
+ *
+ * Each interrupt source is masked distinctly in the sun4m interrupt
+ * registers.  The PIL level alone is therefore ambiguous, since multiple
+ * interrupt sources map to a single PIL.
+ *
+ * This ambiguity is resolved in the 'intr' property for device nodes
+ * in the OF device tree.  Each 'intr' property entry is composed of
+ * two 32-bit words.  The first word is the IRQ priority value, which
+ * is what we're intersted in.  The second word is the IRQ vector, which
+ * is unused.
+ *
+ * The low 4 bits of the IRQ priority indicate the PIL, and the upper
+ * 4 bits indicate onboard vs. SBUS leveled vs. VME leveled.  0x20
+ * means onboard, 0x30 means SBUS leveled, and 0x40 means VME leveled.
+ *
+ * For example, an 'intr' IRQ priority value of 0x24 is onboard SCSI
+ * whereas a value of 0x33 is SBUS level 2.  Here are some sample
+ * 'intr' property IRQ priority values from ss4, ss5, ss10, ss20, and
+ * Tadpole S3 GX systems.
+ *
+ * esp: 	0x24	onboard ESP SCSI
+ * le:  	0x26	onboard Lance ETHERNET
+ * p9100:	0x32	SBUS level 1 P9100 video
+ * bpp:  	0x33	SBUS level 2 BPP parallel port device
+ * DBRI:	0x39	SBUS level 5 DBRI ISDN audio
+ * SUNW,leo:	0x39	SBUS level 5 LEO video
+ * pcmcia:	0x3b	SBUS level 6 PCMCIA controller
+ * uctrl:	0x3b	SBUS level 6 UCTRL device
+ * modem:	0x3d	SBUS level 7 MODEM
+ * zs:		0x2c	onboard keyboard/mouse/serial
+ * floppy:	0x2b	onboard Floppy
+ * power:	0x22	onboard power device (XXX unknown mask bit XXX)
+ */
+
 /* These tables only apply for interrupts greater than 15..
  * 
  * any intr value below 0x10 is considered to be a soft-int
-- 
cgit v1.2.3


From a1cd0464c6f5857d87466130753d81b783bd3c52 Mon Sep 17 00:00:00 2001
From: David Brownell <david-b@pacbell.net>
Date: Sun, 21 Sep 2008 00:28:26 -0700
Subject: sparc: arch/sparc/kernel/pmc.c -- extra #include?

I have no SPARC compiler handy to verify, but it looks like this
is another file that doesn't need <linux/miscdevices.h> ...

Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/pmc.c | 2 --
 1 file changed, 2 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/pmc.c b/arch/sparc/kernel/pmc.c
index 814eb3ce039..2afcfab4f11 100644
--- a/arch/sparc/kernel/pmc.c
+++ b/arch/sparc/kernel/pmc.c
@@ -8,7 +8,6 @@
 #include <linux/fs.h>
 #include <linux/errno.h>
 #include <linux/init.h>
-#include <linux/miscdevice.h>
 #include <linux/pm.h>
 #include <linux/of.h>
 #include <linux/of_device.h>
@@ -24,7 +23,6 @@
  * #define PMC_NO_IDLE
  */
 
-#define PMC_MINOR	MISC_DYNAMIC_MINOR
 #define PMC_OBPNAME	"SUNW,pmc"
 #define PMC_DEVNAME "pmc"
 
-- 
cgit v1.2.3


From 6cf4a9243a7fea75e7fd6f2e1ba6fb01c805e056 Mon Sep 17 00:00:00 2001
From: Robert Reif <reif@earthlink.net>
Date: Tue, 7 Oct 2008 15:24:02 -0700
Subject: sparc32: sun4m interrupt mask cleanup

Here is an updated version of a patch I wrote 6 years ago
http://marc.info/?l=linux-sparc&m=103939103607617&w=2
that simplifies interrupt mask lookup.  It's main purpose
is to add VME bus support but it's really a cleanup of the mask code.

Signed-off-by: Robert Reif <reif@earthlink.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 arch/sparc/kernel/sun4m_irq.c | 145 ++++++++++++++++++++++++++----------------
 arch/sparc/kernel/traps.c     |  17 -----
 2 files changed, 91 insertions(+), 71 deletions(-)

(limited to 'arch/sparc/kernel')

diff --git a/arch/sparc/kernel/sun4m_irq.c b/arch/sparc/kernel/sun4m_irq.c
index ec66d4aab09..f10317179ee 100644
--- a/arch/sparc/kernel/sun4m_irq.c
+++ b/arch/sparc/kernel/sun4m_irq.c
@@ -71,8 +71,9 @@ struct sun4m_irq_global __iomem *sun4m_irq_global;
 
 #define	SUN4M_INT_MASKALL	0x80000000	  /* mask all interrupts */
 #define	SUN4M_INT_MODULE_ERR	0x40000000	  /* module error */
-#define	SUN4M_INT_M2S_WRITE	0x20000000	  /* write buffer error */
-#define	SUN4M_INT_ECC		0x10000000	  /* ecc memory error */
+#define	SUN4M_INT_M2S_WRITE_ERR	0x20000000	  /* write buffer error */
+#define	SUN4M_INT_ECC_ERR	0x10000000	  /* ecc memory error */
+#define	SUN4M_INT_VME_ERR	0x08000000	  /* vme async error */
 #define	SUN4M_INT_FLOPPY	0x00400000	  /* floppy disk */
 #define	SUN4M_INT_MODULE	0x00200000	  /* module interrupt */
 #define	SUN4M_INT_VIDEO		0x00100000	  /* onboard video */
@@ -83,10 +84,22 @@ struct sun4m_irq_global __iomem *sun4m_irq_global;
 #define	SUN4M_INT_SERIAL	0x00008000	  /* serial ports */
 #define	SUN4M_INT_KBDMS		0x00004000	  /* keyboard/mouse */
 #define	SUN4M_INT_SBUSBITS	0x00003F80	  /* sbus int bits */
+#define	SUN4M_INT_VMEBITS	0x0000007F	  /* vme int bits */
+
+#define	SUN4M_INT_ERROR		(SUN4M_INT_MODULE_ERR |    \
+				 SUN4M_INT_M2S_WRITE_ERR | \
+				 SUN4M_INT_ECC_ERR |       \
+				 SUN4M_INT_VME_ERR)
 
 #define SUN4M_INT_SBUS(x)	(1 << (x+7))
 #define SUN4M_INT_VME(x)	(1 << (x))
 
+/* Interrupt levels used by OBP */
+#define	OBP_INT_LEVEL_SOFT	0x10
+#define	OBP_INT_LEVEL_ONBOARD	0x20
+#define	OBP_INT_LEVEL_SBUS	0x30
+#define	OBP_INT_LEVEL_VME	0x40
+
 /* Interrupt level assignment on sun4m:
  *
  *	level		source
@@ -140,59 +153,57 @@ struct sun4m_irq_global __iomem *sun4m_irq_global;
  * power:	0x22	onboard power device (XXX unknown mask bit XXX)
  */
 
-/* These tables only apply for interrupts greater than 15..
- * 
- * any intr value below 0x10 is considered to be a soft-int
- * this may be useful or it may not.. but that's how I've done it.
- * and it won't clash with what OBP is telling us about devices.
- *
- * take an encoded intr value and lookup if it's valid
- * then get the mask bits that match from irq_mask
- *
- * P3: Translation from irq 0x0d to mask 0x2000 is for MrCoffee.
- */
-static unsigned char irq_xlate[32] = {
-    /*  0,  1,  2,  3,  4,  5,  6,  7,  8,  9,  a,  b,  c,  d,  e,  f */
-	0,  0,  0,  0,  1,  0,  2,  0,  3,  0,  4,  5,  6, 14,  0,  7,
-	0,  0,  8,  9,  0, 10,  0, 11,  0, 12,  0, 13,  0, 14,  0,  0
-};
-
-static unsigned long irq_mask[] = {
-	0,						  /* illegal index */
-	SUN4M_INT_SCSI,				  	  /*  1 irq 4 */
-	SUN4M_INT_ETHERNET,				  /*  2 irq 6 */
-	SUN4M_INT_VIDEO,				  /*  3 irq 8 */
-	SUN4M_INT_REALTIME,				  /*  4 irq 10 */
-	SUN4M_INT_FLOPPY,				  /*  5 irq 11 */
-	(SUN4M_INT_SERIAL | SUN4M_INT_KBDMS),	  	  /*  6 irq 12 */
-	SUN4M_INT_MODULE_ERR,			  	  /*  7 irq 15 */
-	SUN4M_INT_SBUS(0),				  /*  8 irq 2 */
-	SUN4M_INT_SBUS(1),				  /*  9 irq 3 */
-	SUN4M_INT_SBUS(2),				  /* 10 irq 5 */
-	SUN4M_INT_SBUS(3),				  /* 11 irq 7 */
-	SUN4M_INT_SBUS(4),				  /* 12 irq 9 */
-	SUN4M_INT_SBUS(5),				  /* 13 irq 11 */
-	SUN4M_INT_SBUS(6)				  /* 14 irq 13 */
+static unsigned long irq_mask[0x50] = {
+	/* SMP */
+	0,  SUN4M_SOFT_INT(1),
+	SUN4M_SOFT_INT(2),  SUN4M_SOFT_INT(3),
+	SUN4M_SOFT_INT(4),  SUN4M_SOFT_INT(5),
+	SUN4M_SOFT_INT(6),  SUN4M_SOFT_INT(7),
+	SUN4M_SOFT_INT(8),  SUN4M_SOFT_INT(9),
+	SUN4M_SOFT_INT(10), SUN4M_SOFT_INT(11),
+	SUN4M_SOFT_INT(12), SUN4M_SOFT_INT(13),
+	SUN4M_SOFT_INT(14), SUN4M_SOFT_INT(15),
+	/* soft */
+	0,  SUN4M_SOFT_INT(1),
+	SUN4M_SOFT_INT(2),  SUN4M_SOFT_INT(3),
+	SUN4M_SOFT_INT(4),  SUN4M_SOFT_INT(5),
+	SUN4M_SOFT_INT(6),  SUN4M_SOFT_INT(7),
+	SUN4M_SOFT_INT(8),  SUN4M_SOFT_INT(9),
+	SUN4M_SOFT_INT(10), SUN4M_SOFT_INT(11),
+	SUN4M_SOFT_INT(12), SUN4M_SOFT_INT(13),
+	SUN4M_SOFT_INT(14), SUN4M_SOFT_INT(15),
+	/* onboard */
+	0, 0, 0, 0,
+	SUN4M_INT_SCSI,  0, SUN4M_INT_ETHERNET, 0,
+	SUN4M_INT_VIDEO, SUN4M_INT_MODULE,
+	SUN4M_INT_REALTIME, SUN4M_INT_FLOPPY,
+	(SUN4M_INT_SERIAL | SUN4M_INT_KBDMS),
+	SUN4M_INT_AUDIO, 0, SUN4M_INT_MODULE_ERR,
+	/* sbus */
+	0, 0, SUN4M_INT_SBUS(0), SUN4M_INT_SBUS(1),
+	0, SUN4M_INT_SBUS(2), 0, SUN4M_INT_SBUS(3),
+	0, SUN4M_INT_SBUS(4), 0, SUN4M_INT_SBUS(5),
+	0, SUN4M_INT_SBUS(6), 0, 0,
+	/* vme */
+	0, 0, SUN4M_INT_VME(0), SUN4M_INT_VME(1),
+	0, SUN4M_INT_VME(2), 0, SUN4M_INT_VME(3),
+	0, SUN4M_INT_VME(4), 0, SUN4M_INT_VME(5),
+	0, SUN4M_INT_VME(6), 0, 0
 };
 
 static unsigned long sun4m_get_irqmask(unsigned int irq)
 {
 	unsigned long mask;
     
-	if (irq > 0x20) {
-		/* OBIO/SBUS interrupts */
-		irq &= 0x1f;
-		mask = irq_mask[irq_xlate[irq]];
-		if (!mask)
-			printk("sun4m_get_irqmask: IRQ%d has no valid mask!\n",irq);
-	} else {
-		/* Soft Interrupts will come here.
-		 * Currently there is no way to trigger them but I'm sure
-		 * something could be cooked up.
-		 */
-		irq &= 0xf;
-		mask = SUN4M_SOFT_INT(irq);
-	}
+	if (irq < 0x50)
+		mask = irq_mask[irq];
+	else
+		mask = 0;
+
+	if (!mask)
+		printk(KERN_ERR "sun4m_get_irqmask: IRQ%d has no valid mask!\n",
+		       irq);
+
 	return mask;
 }
 
@@ -247,10 +258,10 @@ static unsigned long cpu_pil_to_imask[16] = {
 /*9*/	SUN4M_INT_SBUS(4) | SUN4M_INT_VME(4) | SUN4M_INT_MODULE_ERR,
 /*10*/	SUN4M_INT_REALTIME,
 /*11*/	SUN4M_INT_SBUS(5) | SUN4M_INT_VME(5) | SUN4M_INT_FLOPPY,
-/*12*/	SUN4M_INT_SERIAL | SUN4M_INT_KBDMS,
-/*13*/	SUN4M_INT_AUDIO,
+/*12*/	SUN4M_INT_SERIAL  | SUN4M_INT_KBDMS,
+/*13*/	SUN4M_INT_SBUS(6) | SUN4M_INT_VME(6) | SUN4M_INT_AUDIO,
 /*14*/	SUN4M_INT_E14,
-/*15*/	0x00000000
+/*15*/	SUN4M_INT_ERROR
 };
 
 /* We assume the caller has disabled local interrupts when these are called,
@@ -304,8 +315,7 @@ struct sun4m_timer_global {
 
 static struct sun4m_timer_global __iomem *timers_global;
 
-#define OBIO_INTR	0x20
-#define TIMER_IRQ  	(OBIO_INTR | 10)
+#define TIMER_IRQ  	(OBP_INT_LEVEL_ONBOARD | 10)
 
 unsigned int lvl14_resolution = (((1000000/HZ) + 1) << 10);
 
@@ -314,6 +324,33 @@ static void sun4m_clear_clock_irq(void)
 	sbus_readl(&timers_global->l10_limit);
 }
 
+void sun4m_nmi(struct pt_regs *regs)
+{
+	unsigned long afsr, afar, si;
+
+	printk(KERN_ERR "Aieee: sun4m NMI received!\n");
+	/* XXX HyperSparc hack XXX */
+	__asm__ __volatile__("mov 0x500, %%g1\n\t"
+			     "lda [%%g1] 0x4, %0\n\t"
+			     "mov 0x600, %%g1\n\t"
+			     "lda [%%g1] 0x4, %1\n\t" :
+			     "=r" (afsr), "=r" (afar));
+	printk(KERN_ERR "afsr=%08lx afar=%08lx\n", afsr, afar);
+	si = sbus_readl(&sun4m_irq_global->pending);
+	printk(KERN_ERR "si=%08lx\n", si);
+	if (si & SUN4M_INT_MODULE_ERR)
+		printk(KERN_ERR "Module async error\n");
+	if (si & SUN4M_INT_M2S_WRITE_ERR)
+		printk(KERN_ERR "MBus/SBus async error\n");
+	if (si & SUN4M_INT_ECC_ERR)
+		printk(KERN_ERR "ECC memory error\n");
+	if (si & SUN4M_INT_VME_ERR)
+		printk(KERN_ERR "VME async error\n");
+	printk(KERN_ERR "you lose buddy boy...\n");
+	show_regs(regs);
+	prom_halt();
+}
+
 /* Exported for sun4m_smp.c */
 void sun4m_clear_profile_irq(int cpu)
 {
diff --git a/arch/sparc/kernel/traps.c b/arch/sparc/kernel/traps.c
index 5d45d5fd8c9..2b7d5065903 100644
--- a/arch/sparc/kernel/traps.c
+++ b/arch/sparc/kernel/traps.c
@@ -43,23 +43,6 @@ void syscall_trace_exit(struct pt_regs *regs)
 {
 }
 
-void sun4m_nmi(struct pt_regs *regs)
-{
-	unsigned long afsr, afar;
-
-	printk("Aieee: sun4m NMI received!\n");
-	/* XXX HyperSparc hack XXX */
-	__asm__ __volatile__("mov 0x500, %%g1\n\t"
-			     "lda [%%g1] 0x4, %0\n\t"
-			     "mov 0x600, %%g1\n\t"
-			     "lda [%%g1] 0x4, %1\n\t" :
-			     "=r" (afsr), "=r" (afar));
-	printk("afsr=%08lx afar=%08lx\n", afsr, afar);
-	printk("you lose buddy boy...\n");
-	show_regs(regs);
-	prom_halt();
-}
-
 void sun4d_nmi(struct pt_regs *regs)
 {
 	printk("Aieee: sun4d NMI received!\n");
-- 
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