Merge master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc

* master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc: (194 commits)
  [POWERPC] Add missing EXPORTS for mpc52xx support
  [POWERPC] Remove obsolete PPC_52xx and update CLASSIC32 comment
  [POWERPC] ps3: add a default zImage target
  [POWERPC] Add of_platform_bus support to mpc52xx psc uart driver
  [POWERPC] typo fix and whitespace cleanup on mpc52xx-uart driver
  [POWERPC] Fix debug printks for 32-bit resources in the PCI code
  [POWERPC] Replace kmalloc+memset with kzalloc
  [POWERPC] Linkstation / kurobox support
  [POWERPC] Add the e300c3 core to the CPU table.
  [POWERPC] ppc: m48t35 add missing bracket
  [POWERPC] iSeries: don't build head_64.o unnecessarily
  [POWERPC] iSeries: stop dt_mod.o being rebuilt unnecessarily
  [POWERPC] Fix cputable.h for combined build
  [POWERPC] Allow CONFIG_BOOTX_TEXT on iSeries
  [POWERPC] Allow xmon to build on legacy iSeries
  [POWERPC] Change ppc64_defconfig to use AUTOFS_V4 not V3
  [POWERPC] Tell firmware we can handle POWER6 compatible mode
  [POWERPC] Clean images in arch/powerpc/boot
  [POWERPC] Fix OF pci flags parsing
  [POWERPC] defconfig for lite5200 board
  ...

12 files changed, 404 insertions, 493 deletions

diff --git a/arch/powerpc/sysdev/Makefile b/arch/powerpc/sysdev/Makefile
index 91f052d8cce..6cc34597a62 100644
--- a/arch/powerpc/sysdev/Makefile
+++ b/arch/powerpc/sysdev/Makefile
@@ -5,14 +5,13 @@ endif
 obj-$(CONFIG_MPIC)		+= mpic.o
 obj-$(CONFIG_PPC_INDIRECT_PCI)	+= indirect_pci.o
 obj-$(CONFIG_PPC_MPC106)	+= grackle.o
-obj-$(CONFIG_BOOKE)		+= dcr.o
-obj-$(CONFIG_40x)		+= dcr.o
+obj-$(CONFIG_PPC_DCR)		+= dcr.o dcr-low.o
 obj-$(CONFIG_U3_DART)		+= dart_iommu.o
 obj-$(CONFIG_MMIO_NVRAM)	+= mmio_nvram.o
 obj-$(CONFIG_FSL_SOC)		+= fsl_soc.o
-obj-$(CONFIG_PPC_TODC)		+= todc.o
 obj-$(CONFIG_TSI108_BRIDGE)	+= tsi108_pci.o tsi108_dev.o
 obj-$(CONFIG_QUICC_ENGINE)	+= qe_lib/
+obj-$(CONFIG_MTD)		+= rom.o
 
 ifeq ($(CONFIG_PPC_MERGE),y)
 obj-$(CONFIG_PPC_I8259)		+= i8259.o
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 572b7846cc7..1488535b0e1 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -48,9 +48,6 @@
 
 #include "dart.h"
 
-extern int iommu_is_off;
-extern int iommu_force_on;
-
 /* Physical base address and size of the DART table */
 unsigned long dart_tablebase; /* exported to htab_initialize */
 static unsigned long dart_tablesize;
@@ -289,24 +286,15 @@ static void iommu_table_dart_setup(void)
 	set_bit(iommu_table_dart.it_size - 1, iommu_table_dart.it_map);
 }
 
-static void iommu_dev_setup_dart(struct pci_dev *dev)
+static void pci_dma_dev_setup_dart(struct pci_dev *dev)
 {
-	struct device_node *dn;
-
 	/* We only have one iommu table on the mac for now, which makes
 	 * things simple. Setup all PCI devices to point to this table
-	 *
-	 * We must use pci_device_to_OF_node() to make sure that
-	 * we get the real "final" pointer to the device in the
-	 * pci_dev sysdata and not the temporary PHB one
 	 */
-	dn = pci_device_to_OF_node(dev);
-
-	if (dn)
-		PCI_DN(dn)->iommu_table = &iommu_table_dart;
+	dev->dev.archdata.dma_data = &iommu_table_dart;
 }
 
-static void iommu_bus_setup_dart(struct pci_bus *bus)
+static void pci_dma_bus_setup_dart(struct pci_bus *bus)
 {
 	struct device_node *dn;
 
@@ -321,9 +309,6 @@ static void iommu_bus_setup_dart(struct pci_bus *bus)
 		PCI_DN(dn)->iommu_table = &iommu_table_dart;
 }
 
-static void iommu_dev_setup_null(struct pci_dev *dev) { }
-static void iommu_bus_setup_null(struct pci_bus *bus) { }
-
 void iommu_init_early_dart(void)
 {
 	struct device_node *dn;
@@ -344,22 +329,21 @@ void iommu_init_early_dart(void)
 
 	/* Initialize the DART HW */
 	if (dart_init(dn) == 0) {
-		ppc_md.iommu_dev_setup = iommu_dev_setup_dart;
-		ppc_md.iommu_bus_setup = iommu_bus_setup_dart;
+		ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_dart;
+		ppc_md.pci_dma_bus_setup = pci_dma_bus_setup_dart;
 
 		/* Setup pci_dma ops */
-		pci_iommu_init();
-
+		pci_dma_ops = &dma_iommu_ops;
 		return;
 	}
 
  bail:
 	/* If init failed, use direct iommu and null setup functions */
-	ppc_md.iommu_dev_setup = iommu_dev_setup_null;
-	ppc_md.iommu_bus_setup = iommu_bus_setup_null;
+	ppc_md.pci_dma_dev_setup = NULL;
+	ppc_md.pci_dma_bus_setup = NULL;
 
 	/* Setup pci_dma ops */
-	pci_direct_iommu_init();
+	pci_dma_ops = &dma_direct_ops;
 }
 
 
diff --git a/arch/powerpc/sysdev/dcr-low.S b/arch/powerpc/sysdev/dcr-low.S
new file mode 100644
index 00000000000..2078f39e2f1
--- /dev/null
+++ b/arch/powerpc/sysdev/dcr-low.S
@@ -0,0 +1,39 @@
+/*
+ * "Indirect" DCR access
+ *
+ * Copyright (c) 2004 Eugene Surovegin <ebs@ebshome.net>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under  the terms of  the GNU General Public License as published by the
+ * Free Software Foundation;  either version 2 of the License, or (at your
+ * option) any later version.
+ */
+
+#include <asm/ppc_asm.h>
+#include <asm/processor.h>
+
+#define DCR_ACCESS_PROLOG(table) \
+	rlwinm  r3,r3,4,18,27;   \
+	lis     r5,table@h;      \
+	ori     r5,r5,table@l;   \
+	add     r3,r3,r5;        \
+	mtctr   r3;              \
+	bctr
+
+_GLOBAL(__mfdcr)
+	DCR_ACCESS_PROLOG(__mfdcr_table)
+
+_GLOBAL(__mtdcr)
+	DCR_ACCESS_PROLOG(__mtdcr_table)
+
+__mfdcr_table:
+	mfdcr  r3,0; blr
+__mtdcr_table:
+	mtdcr  0,r4; blr
+
+dcr     = 1
+        .rept   1023
+	mfdcr   r3,dcr; blr
+	mtdcr   dcr,r4; blr
+	dcr     = dcr + 1
+	.endr
diff --git a/arch/powerpc/sysdev/dcr.c b/arch/powerpc/sysdev/dcr.c
new file mode 100644
index 00000000000..dffeeaeca1d
--- /dev/null
+++ b/arch/powerpc/sysdev/dcr.c
@@ -0,0 +1,137 @@
+/*
+ * (c) Copyright 2006 Benjamin Herrenschmidt, IBM Corp.
+ *                    <benh@kernel.crashing.org>
+ *
+ *   This program is free software;  you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY;  without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
+ *   the GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program;  if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#undef DEBUG
+
+#include <linux/kernel.h>
+#include <asm/prom.h>
+#include <asm/dcr.h>
+
+unsigned int dcr_resource_start(struct device_node *np, unsigned int index)
+{
+	unsigned int ds;
+	const u32 *dr = get_property(np, "dcr-reg", &ds);
+
+	if (dr == NULL || ds & 1 || index >= (ds / 8))
+		return 0;
+
+	return dr[index * 2];
+}
+
+unsigned int dcr_resource_len(struct device_node *np, unsigned int index)
+{
+	unsigned int ds;
+	const u32 *dr = get_property(np, "dcr-reg", &ds);
+
+	if (dr == NULL || ds & 1 || index >= (ds / 8))
+		return 0;
+
+	return dr[index * 2 + 1];
+}
+
+#ifndef CONFIG_PPC_DCR_NATIVE
+
+static struct device_node * find_dcr_parent(struct device_node * node)
+{
+	struct device_node *par, *tmp;
+	const u32 *p;
+
+	for (par = of_node_get(node); par;) {
+		if (get_property(par, "dcr-controller", NULL))
+			break;
+		p = get_property(par, "dcr-parent", NULL);
+		tmp = par;
+		if (p == NULL)
+			par = of_get_parent(par);
+		else
+			par = of_find_node_by_phandle(*p);
+		of_node_put(tmp);
+	}
+	return par;
+}
+
+u64 of_translate_dcr_address(struct device_node *dev,
+			     unsigned int dcr_n,
+			     unsigned int *out_stride)
+{
+	struct device_node *dp;
+	const u32 *p;
+	unsigned int stride;
+	u64 ret;
+
+	dp = find_dcr_parent(dev);
+	if (dp == NULL)
+		return OF_BAD_ADDR;
+
+	/* Stride is not properly defined yet, default to 0x10 for Axon */
+	p = get_property(dp, "dcr-mmio-stride", NULL);
+	stride = (p == NULL) ? 0x10 : *p;
+
+	/* XXX FIXME: Which property name is to use of the 2 following ? */
+	p = get_property(dp, "dcr-mmio-range", NULL);
+	if (p == NULL)
+		p = get_property(dp, "dcr-mmio-space", NULL);
+	if (p == NULL)
+		return OF_BAD_ADDR;
+
+	/* Maybe could do some better range checking here */
+	ret = of_translate_address(dp, p);
+	if (ret != OF_BAD_ADDR)
+		ret += (u64)(stride) * (u64)dcr_n;
+	if (out_stride)
+		*out_stride = stride;
+	return ret;
+}
+
+dcr_host_t dcr_map(struct device_node *dev, unsigned int dcr_n,
+		   unsigned int dcr_c)
+{
+	dcr_host_t ret = { .token = NULL, .stride = 0 };
+	u64 addr;
+
+	pr_debug("dcr_map(%s, 0x%x, 0x%x)\n",
+		 dev->full_name, dcr_n, dcr_c);
+
+	addr = of_translate_dcr_address(dev, dcr_n, &ret.stride);
+	pr_debug("translates to addr: 0x%lx, stride: 0x%x\n",
+		 addr, ret.stride);
+	if (addr == OF_BAD_ADDR)
+		return ret;
+	pr_debug("mapping 0x%x bytes\n", dcr_c * ret.stride);
+	ret.token = ioremap(addr, dcr_c * ret.stride);
+	if (ret.token == NULL)
+		return ret;
+	pr_debug("mapped at 0x%p -> base is 0x%p\n",
+		 ret.token, ret.token - dcr_n * ret.stride);
+	ret.token -= dcr_n * ret.stride;
+	return ret;
+}
+
+void dcr_unmap(dcr_host_t host, unsigned int dcr_n, unsigned int dcr_c)
+{
+	dcr_host_t h = host;
+
+	if (h.token == NULL)
+		return;
+	h.token -= dcr_n * h.stride;
+	iounmap(h.token);
+	h.token = NULL;
+}
+
+#endif /* !defined(CONFIG_PPC_DCR_NATIVE) */
diff --git a/arch/powerpc/sysdev/fsl_soc.c b/arch/powerpc/sysdev/fsl_soc.c
index dbe92ae2033..ad31e56e892 100644
--- a/arch/powerpc/sysdev/fsl_soc.c
+++ b/arch/powerpc/sysdev/fsl_soc.c
@@ -22,6 +22,7 @@
 #include <linux/module.h>
 #include <linux/device.h>
 #include <linux/platform_device.h>
+#include <linux/phy.h>
 #include <linux/fsl_devices.h>
 #include <linux/fs_enet_pd.h>
 #include <linux/fs_uart_pd.h>
@@ -146,7 +147,7 @@ static int __init gfar_mdio_of_init(void)
 		}
 
 		for (k = 0; k < 32; k++)
-			mdio_data.irq[k] = -1;
+			mdio_data.irq[k] = PHY_POLL;
 
 		while ((child = of_get_next_child(np, child)) != NULL) {
 			int irq = irq_of_parse_and_map(child, 0);
@@ -177,6 +178,7 @@ static const char *gfar_tx_intr = "tx";
 static const char *gfar_rx_intr = "rx";
 static const char *gfar_err_intr = "error";
 
+
 static int __init gfar_of_init(void)
 {
 	struct device_node *np;
@@ -204,8 +206,7 @@ static int __init gfar_of_init(void)
 		if (ret)
 			goto err;
 
-		r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
-		r[1].flags = IORESOURCE_IRQ;
+		of_irq_to_resource(np, 0, &r[1]);
 
 		model = get_property(np, "model", NULL);
 
@@ -214,12 +215,10 @@ static int __init gfar_of_init(void)
 			r[1].name = gfar_tx_intr;
 
 			r[2].name = gfar_rx_intr;
-			r[2].start = r[2].end = irq_of_parse_and_map(np, 1);
-			r[2].flags = IORESOURCE_IRQ;
+			of_irq_to_resource(np, 1, &r[2]);
 
 			r[3].name = gfar_err_intr;
-			r[3].start = r[3].end = irq_of_parse_and_map(np, 2);
-			r[3].flags = IORESOURCE_IRQ;
+			of_irq_to_resource(np, 2, &r[3]);
 
 			n_res += 2;
 		}
@@ -323,8 +322,7 @@ static int __init fsl_i2c_of_init(void)
 		if (ret)
 			goto err;
 
-		r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
-		r[1].flags = IORESOURCE_IRQ;
+		of_irq_to_resource(np, 0, &r[1]);
 
 		i2c_dev = platform_device_register_simple("fsl-i2c", i, r, 2);
 		if (IS_ERR(i2c_dev)) {
@@ -459,8 +457,7 @@ static int __init fsl_usb_of_init(void)
 		if (ret)
 			goto err;
 
-		r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
-		r[1].flags = IORESOURCE_IRQ;
+		of_irq_to_resource(np, 0, &r[1]);
 
 		usb_dev_mph =
 		    platform_device_register_simple("fsl-ehci", i, r, 2);
@@ -507,8 +504,7 @@ static int __init fsl_usb_of_init(void)
 		if (ret)
 			goto unreg_mph;
 
-		r[1].start = r[1].end = irq_of_parse_and_map(np, 0);
-		r[1].flags = IORESOURCE_IRQ;
+		of_irq_to_resource(np, 0, &r[1]);
 
 		usb_dev_dr =
 		    platform_device_register_simple("fsl-ehci", i, r, 2);
@@ -591,8 +587,7 @@ static int __init fs_enet_of_init(void)
 		r[2].name = fcc_regs_c;
 		fs_enet_data.fcc_regs_c = r[2].start;
 
-		r[3].start = r[3].end = irq_of_parse_and_map(np, 0);
-		r[3].flags = IORESOURCE_IRQ;
+		of_irq_to_resource(np, 0, &r[3]);
 
 		fs_enet_dev =
 		    platform_device_register_simple("fsl-cpm-fcc", i, &r[0], 4);
@@ -754,8 +749,7 @@ static int __init cpm_uart_of_init(void)
 			goto err;
 		r[1].name = scc_pram;
 
-		r[2].start = r[2].end = irq_of_parse_and_map(np, 0);
-		r[2].flags = IORESOURCE_IRQ;
+		of_irq_to_resource(np, 0, &r[2]);
 
 		cpm_uart_dev =
 		    platform_device_register_simple("fsl-cpm-scc:uart", i, &r[0], 3);
diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index ba4833f57d4..411480d5c62 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -147,33 +147,51 @@ static u32 mpic_infos[][MPIC_IDX_END] = {
  */
 
 
-static inline u32 _mpic_read(unsigned int be, volatile u32 __iomem *base,
-			    unsigned int reg)
+static inline u32 _mpic_read(enum mpic_reg_type type,
+			     struct mpic_reg_bank *rb,
+			     unsigned int reg)
 {
-	if (be)
-		return in_be32(base + (reg >> 2));
-	else
-		return in_le32(base + (reg >> 2));
+	switch(type) {
+#ifdef CONFIG_PPC_DCR
+	case mpic_access_dcr:
+		return dcr_read(rb->dhost,
+				rb->dbase + reg + rb->doff);
+#endif
+	case mpic_access_mmio_be:
+		return in_be32(rb->base + (reg >> 2));
+	case mpic_access_mmio_le:
+	default:
+		return in_le32(rb->base + (reg >> 2));
+	}
 }
 
-static inline void _mpic_write(unsigned int be, volatile u32 __iomem *base,
-			      unsigned int reg, u32 value)
+static inline void _mpic_write(enum mpic_reg_type type,
+			       struct mpic_reg_bank *rb,
+ 			       unsigned int reg, u32 value)
 {
-	if (be)
-		out_be32(base + (reg >> 2), value);
-	else
-		out_le32(base + (reg >> 2), value);
+	switch(type) {
+#ifdef CONFIG_PPC_DCR
+	case mpic_access_dcr:
+		return dcr_write(rb->dhost,
+				 rb->dbase + reg + rb->doff, value);
+#endif
+	case mpic_access_mmio_be:
+		return out_be32(rb->base + (reg >> 2), value);
+	case mpic_access_mmio_le:
+	default:
+		return out_le32(rb->base + (reg >> 2), value);
+	}
 }
 
 static inline u32 _mpic_ipi_read(struct mpic *mpic, unsigned int ipi)
 {
-	unsigned int be = (mpic->flags & MPIC_BIG_ENDIAN) != 0;
+	enum mpic_reg_type type = mpic->reg_type;
 	unsigned int offset = MPIC_INFO(GREG_IPI_VECTOR_PRI_0) +
 			      (ipi * MPIC_INFO(GREG_IPI_STRIDE));
 
-	if (mpic->flags & MPIC_BROKEN_IPI)
-		be = !be;
-	return _mpic_read(be, mpic->gregs, offset);
+	if ((mpic->flags & MPIC_BROKEN_IPI) && type == mpic_access_mmio_le)
+		type = mpic_access_mmio_be;
+	return _mpic_read(type, &mpic->gregs, offset);
 }
 
 static inline void _mpic_ipi_write(struct mpic *mpic, unsigned int ipi, u32 value)
@@ -181,7 +199,7 @@ static inline void _mpic_ipi_write(struct mpic *mpic, unsigned int ipi, u32 valu
 	unsigned int offset = MPIC_INFO(GREG_IPI_VECTOR_PRI_0) +
 			      (ipi * MPIC_INFO(GREG_IPI_STRIDE));
 
-	_mpic_write(mpic->flags & MPIC_BIG_ENDIAN, mpic->gregs, offset, value);
+	_mpic_write(mpic->reg_type, &mpic->gregs, offset, value);
 }
 
 static inline u32 _mpic_cpu_read(struct mpic *mpic, unsigned int reg)
@@ -190,8 +208,7 @@ static inline u32 _mpic_cpu_read(struct mpic *mpic, unsigned int reg)
 
 	if (mpic->flags & MPIC_PRIMARY)
 		cpu = hard_smp_processor_id();
-	return _mpic_read(mpic->flags & MPIC_BIG_ENDIAN,
-			  mpic->cpuregs[cpu], reg);
+	return _mpic_read(mpic->reg_type, &mpic->cpuregs[cpu], reg);
 }
 
 static inline void _mpic_cpu_write(struct mpic *mpic, unsigned int reg, u32 value)
@@ -201,7 +218,7 @@ static inline void _mpic_cpu_write(struct mpic *mpic, unsigned int reg, u32 valu
 	if (mpic->flags & MPIC_PRIMARY)
 		cpu = hard_smp_processor_id();
 
-	_mpic_write(mpic->flags & MPIC_BIG_ENDIAN, mpic->cpuregs[cpu], reg, value);
+	_mpic_write(mpic->reg_type, &mpic->cpuregs[cpu], reg, value);
 }
 
 static inline u32 _mpic_irq_read(struct mpic *mpic, unsigned int src_no, unsigned int reg)
@@ -209,7 +226,7 @@ static inline u32 _mpic_irq_read(struct mpic *mpic, unsigned int src_no, unsigne
 	unsigned int	isu = src_no >> mpic->isu_shift;
 	unsigned int	idx = src_no & mpic->isu_mask;
 
-	return _mpic_read(mpic->flags & MPIC_BIG_ENDIAN, mpic->isus[isu],
+	return _mpic_read(mpic->reg_type, &mpic->isus[isu],
 			  reg + (idx * MPIC_INFO(IRQ_STRIDE)));
 }
 
@@ -219,12 +236,12 @@ static inline void _mpic_irq_write(struct mpic *mpic, unsigned int src_no,
 	unsigned int	isu = src_no >> mpic->isu_shift;
 	unsigned int	idx = src_no & mpic->isu_mask;
 
-	_mpic_write(mpic->flags & MPIC_BIG_ENDIAN, mpic->isus[isu],
+	_mpic_write(mpic->reg_type, &mpic->isus[isu],
 		    reg + (idx * MPIC_INFO(IRQ_STRIDE)), value);
 }
 
-#define mpic_read(b,r)		_mpic_read(mpic->flags & MPIC_BIG_ENDIAN,(b),(r))
-#define mpic_write(b,r,v)	_mpic_write(mpic->flags & MPIC_BIG_ENDIAN,(b),(r),(v))
+#define mpic_read(b,r)		_mpic_read(mpic->reg_type,&(b),(r))
+#define mpic_write(b,r,v)	_mpic_write(mpic->reg_type,&(b),(r),(v))
 #define mpic_ipi_read(i)	_mpic_ipi_read(mpic,(i))
 #define mpic_ipi_write(i,v)	_mpic_ipi_write(mpic,(i),(v))
 #define mpic_cpu_read(i)	_mpic_cpu_read(mpic,(i))
@@ -238,6 +255,38 @@ static inline void _mpic_irq_write(struct mpic *mpic, unsigned int src_no,
  */
 
 
+static void _mpic_map_mmio(struct mpic *mpic, unsigned long phys_addr,
+			   struct mpic_reg_bank *rb, unsigned int offset,
+			   unsigned int size)
+{
+	rb->base = ioremap(phys_addr + offset, size);
+	BUG_ON(rb->base == NULL);
+}
+
+#ifdef CONFIG_PPC_DCR
+static void _mpic_map_dcr(struct mpic *mpic, struct mpic_reg_bank *rb,
+			  unsigned int offset, unsigned int size)
+{
+	rb->dbase = mpic->dcr_base;
+	rb->doff = offset;
+	rb->dhost = dcr_map(mpic->of_node, rb->dbase + rb->doff, size);
+	BUG_ON(!DCR_MAP_OK(rb->dhost));
+}
+
+static inline void mpic_map(struct mpic *mpic, unsigned long phys_addr,
+			    struct mpic_reg_bank *rb, unsigned int offset,
+			    unsigned int size)
+{
+	if (mpic->flags & MPIC_USES_DCR)
+		_mpic_map_dcr(mpic, rb, offset, size);
+	else
+		_mpic_map_mmio(mpic, phys_addr, rb, offset, size);
+}
+#else /* CONFIG_PPC_DCR */
+#define mpic_map(m,p,b,o,s)	_mpic_map_mmio(m,p,b,o,s)
+#endif /* !CONFIG_PPC_DCR */
+
+
 
 /* Check if we have one of those nice broken MPICs with a flipped endian on
  * reads from IPI registers
@@ -845,7 +894,7 @@ static struct irq_host_ops mpic_host_ops = {
  */
 
 struct mpic * __init mpic_alloc(struct device_node *node,
-				unsigned long phys_addr,
+				phys_addr_t phys_addr,
 				unsigned int flags,
 				unsigned int isu_size,
 				unsigned int irq_count,
@@ -855,6 +904,7 @@ struct mpic * __init mpic_alloc(struct device_node *node,
 	u32		reg;
 	const char	*vers;
 	int		i;
+	u64		paddr = phys_addr;
 
 	mpic = alloc_bootmem(sizeof(struct mpic));
 	if (mpic == NULL)
@@ -883,6 +933,7 @@ struct mpic * __init mpic_alloc(struct device_node *node,
 	if (flags & MPIC_PRIMARY)
 		mpic->hc_ht_irq.set_affinity = mpic_set_affinity;
 #endif /* CONFIG_MPIC_BROKEN_U3 */
+
 #ifdef CONFIG_SMP
 	mpic->hc_ipi = mpic_ipi_chip;
 	mpic->hc_ipi.typename = name;
@@ -893,15 +944,52 @@ struct mpic * __init mpic_alloc(struct device_node *node,
 	mpic->irq_count = irq_count;
 	mpic->num_sources = 0; /* so far */
 
+	/* Check for "big-endian" in device-tree */
+	if (node && get_property(node, "big-endian", NULL) != NULL)
+		mpic->flags |= MPIC_BIG_ENDIAN;
+
+
 #ifdef CONFIG_MPIC_WEIRD
 	mpic->hw_set = mpic_infos[MPIC_GET_REGSET(flags)];
 #endif
 
+	/* default register type */
+	mpic->reg_type = (flags & MPIC_BIG_ENDIAN) ?
+		mpic_access_mmio_be : mpic_access_mmio_le;
+
+	/* If no physical address is passed in, a device-node is mandatory */
+	BUG_ON(paddr == 0 && node == NULL);
+
+	/* If no physical address passed in, check if it's dcr based */
+	if (paddr == 0 && get_property(node, "dcr-reg", NULL) != NULL)
+		mpic->flags |= MPIC_USES_DCR;
+
+#ifdef CONFIG_PPC_DCR
+	if (mpic->flags & MPIC_USES_DCR) {
+		const u32 *dbasep;
+		dbasep = get_property(node, "dcr-reg", NULL);
+		BUG_ON(dbasep == NULL);
+		mpic->dcr_base = *dbasep;
+		mpic->reg_type = mpic_access_dcr;
+	}
+#else
+	BUG_ON (mpic->flags & MPIC_USES_DCR);
+#endif /* CONFIG_PPC_DCR */
+
+	/* If the MPIC is not DCR based, and no physical address was passed
+	 * in, try to obtain one
+	 */
+	if (paddr == 0 && !(mpic->flags & MPIC_USES_DCR)) {
+		const u32 *reg;
+		reg = get_property(node, "reg", NULL);
+		BUG_ON(reg == NULL);
+		paddr = of_translate_address(node, reg);
+		BUG_ON(paddr == OF_BAD_ADDR);
+	}
+
 	/* Map the global registers */
-	mpic->gregs = ioremap(phys_addr + MPIC_INFO(GREG_BASE), 0x1000);
-	mpic->tmregs = mpic->gregs +
-		       ((MPIC_INFO(TIMER_BASE) - MPIC_INFO(GREG_BASE)) >> 2);
-	BUG_ON(mpic->gregs == NULL);
+	mpic_map(mpic, paddr, &mpic->gregs, MPIC_INFO(GREG_BASE), 0x1000);
+	mpic_map(mpic, paddr, &mpic->tmregs, MPIC_INFO(TIMER_BASE), 0x1000);
 
 	/* Reset */
 	if (flags & MPIC_WANTS_RESET) {
@@ -926,17 +1014,16 @@ struct mpic * __init mpic_alloc(struct device_node *node,
 
 	/* Map the per-CPU registers */
 	for (i = 0; i < mpic->num_cpus; i++) {
-		mpic->cpuregs[i] = ioremap(phys_addr + MPIC_INFO(CPU_BASE) +
-					   i * MPIC_INFO(CPU_STRIDE), 0x1000);
-		BUG_ON(mpic->cpuregs[i] == NULL);
+		mpic_map(mpic, paddr, &mpic->cpuregs[i],
+			 MPIC_INFO(CPU_BASE) + i * MPIC_INFO(CPU_STRIDE),
+			 0x1000);
 	}
 
 	/* Initialize main ISU if none provided */
 	if (mpic->isu_size == 0) {
 		mpic->isu_size = mpic->num_sources;
-		mpic->isus[0] = ioremap(phys_addr + MPIC_INFO(IRQ_BASE),
-					MPIC_INFO(IRQ_STRIDE) * mpic->isu_size);
-		BUG_ON(mpic->isus[0] == NULL);
+		mpic_map(mpic, paddr, &mpic->isus[0],
+			 MPIC_INFO(IRQ_BASE), MPIC_INFO(IRQ_STRIDE) * mpic->isu_size);
 	}
 	mpic->isu_shift = 1 + __ilog2(mpic->isu_size - 1);
 	mpic->isu_mask = (1 << mpic->isu_shift) - 1;
@@ -956,10 +1043,11 @@ struct mpic * __init mpic_alloc(struct device_node *node,
 		vers = "<unknown>";
 		break;
 	}
-	printk(KERN_INFO "mpic: Setting up MPIC \"%s\" version %s at %lx, max %d CPUs\n",
-	       name, vers, phys_addr, mpic->num_cpus);
-	printk(KERN_INFO "mpic: ISU size: %d, shift: %d, mask: %x\n", mpic->isu_size,
-	       mpic->isu_shift, mpic->isu_mask);
+	printk(KERN_INFO "mpic: Setting up MPIC \"%s\" version %s at %llx,"
+	       " max %d CPUs\n",
+	       name, vers, (unsigned long long)paddr, mpic->num_cpus);
+	printk(KERN_INFO "mpic: ISU size: %d, shift: %d, mask: %x\n",
+	       mpic->isu_size, mpic->isu_shift, mpic->isu_mask);
 
 	mpic->next = mpics;
 	mpics = mpic;
@@ -973,14 +1061,14 @@ struct mpic * __init mpic_alloc(struct device_node *node,
 }
 
 void __init mpic_assign_isu(struct mpic *mpic, unsigned int isu_num,
-			    unsigned long phys_addr)
+			    phys_addr_t paddr)
 {
 	unsigned int isu_first = isu_num * mpic->isu_size;
 
 	BUG_ON(isu_num >= MPIC_MAX_ISU);
 
-	mpic->isus[isu_num] = ioremap(phys_addr,
-				      MPIC_INFO(IRQ_STRIDE) * mpic->isu_size);
+	mpic_map(mpic, paddr, &mpic->isus[isu_num], 0,
+		 MPIC_INFO(IRQ_STRIDE) * mpic->isu_size);
 	if ((isu_first + mpic->isu_size) > mpic->num_sources)
 		mpic->num_sources = isu_first + mpic->isu_size;
 }
diff --git a/arch/powerpc/sysdev/qe_lib/qe.c b/arch/powerpc/sysdev/qe_lib/qe.c
index e4223226a7a..e3d71e083f3 100644
--- a/arch/powerpc/sysdev/qe_lib/qe.c
+++ b/arch/powerpc/sysdev/qe_lib/qe.c
@@ -174,8 +174,7 @@ void qe_setbrg(u32 brg, u32 rate)
 	u32 divisor, tempval;
 	int div16 = 0;
 
-	bp = &qe_immr->brg.brgc1;
-	bp += brg;
+	bp = &qe_immr->brg.brgc[brg];
 
 	divisor = (get_brg_clk() / rate);
 	if (divisor > QE_BRGC_DIVISOR_MAX + 1) {
diff --git a/arch/powerpc/sysdev/qe_lib/ucc_fast.c b/arch/powerpc/sysdev/qe_lib/ucc_fast.c
index 75fa3104a43..e657559bea9 100644
--- a/arch/powerpc/sysdev/qe_lib/ucc_fast.c
+++ b/arch/powerpc/sysdev/qe_lib/ucc_fast.c
@@ -216,14 +216,12 @@ int ucc_fast_init(struct ucc_fast_info * uf_info, struct ucc_fast_private ** ucc
 		return -EINVAL;
 	}
 
-	uccf = (struct ucc_fast_private *)
-		 kmalloc(sizeof(struct ucc_fast_private), GFP_KERNEL);
+	uccf = kzalloc(sizeof(struct ucc_fast_private), GFP_KERNEL);
 	if (!uccf) {
 		uccf_err
 		    ("ucc_fast_init: No memory for UCC slow data structure!");
 		return -ENOMEM;
 	}
-	memset(uccf, 0, sizeof(struct ucc_fast_private));
 
 	/* Fill fast UCC structure */
 	uccf->uf_info = uf_info;
diff --git a/arch/powerpc/sysdev/qe_lib/ucc_slow.c b/arch/powerpc/sysdev/qe_lib/ucc_slow.c
index a49da6b73ec..47b56203f47 100644
--- a/arch/powerpc/sysdev/qe_lib/ucc_slow.c
+++ b/arch/powerpc/sysdev/qe_lib/ucc_slow.c
@@ -168,14 +168,12 @@ int ucc_slow_init(struct ucc_slow_info * us_info, struct ucc_slow_private ** ucc
 		return -EINVAL;
 	}
 
-	uccs = (struct ucc_slow_private *)
-		kmalloc(sizeof(struct ucc_slow_private), GFP_KERNEL);
+	uccs = kzalloc(sizeof(struct ucc_slow_private), GFP_KERNEL);
 	if (!uccs) {
 		uccs_err
 		    ("ucc_slow_init: No memory for UCC slow data structure!");
 		return -ENOMEM;
 	}
-	memset(uccs, 0, sizeof(struct ucc_slow_private));
 
 	/* Fill slow UCC structure */
 	uccs->us_info = us_info;
diff --git a/arch/powerpc/sysdev/rom.c b/arch/powerpc/sysdev/rom.c
new file mode 100644
index 00000000000..bf5b3f10e6c
--- /dev/null
+++ b/arch/powerpc/sysdev/rom.c
@@ -0,0 +1,31 @@
+/*
+ * ROM device registration
+ *
+ * (C) 2006 MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <linux/kernel.h>
+#include <asm/of_device.h>
+
+static int __init powerpc_flash_init(void)
+{
+	struct device_node *node = NULL;
+
+	/*
+	 * Register all the devices which type is "rom"
+	 */
+	while ((node = of_find_node_by_type(node, "rom")) != NULL) {
+		if (node->name == NULL) {
+			printk(KERN_WARNING "powerpc_flash_init: found 'rom' "
+				"device, but with no name, skipping...\n");
+			continue;
+		}
+		of_platform_device_create(node, node->name, NULL);
+	}
+	return 0;
+}
+
+arch_initcall(powerpc_flash_init);
diff --git a/arch/powerpc/sysdev/todc.c b/arch/powerpc/sysdev/todc.c
deleted file mode 100644
index 0a65980efb5..00000000000
--- a/arch/powerpc/sysdev/todc.c
+++ /dev/null
@@ -1,392 +0,0 @@
-/*
- * Time of Day Clock support for the M48T35, M48T37, M48T59, and MC146818
- * Real Time Clocks/Timekeepers.
- *
- * Author: Mark A. Greer <mgreer@mvista.com>
- *
- * 2001-2004 (c) MontaVista, Software, Inc.  This file is licensed under
- * the terms of the GNU General Public License version 2.  This program
- * is licensed "as is" without any warranty of any kind, whether express
- * or implied.
- */
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/time.h>
-#include <linux/timex.h>
-#include <linux/bcd.h>
-#include <linux/mc146818rtc.h>
-
-#include <asm/machdep.h>
-#include <asm/io.h>
-#include <asm/time.h>
-#include <asm/todc.h>
-
-/*
- * Depending on the hardware on your board and your board design, the
- * RTC/NVRAM may be accessed either directly (like normal memory) or via
- * address/data registers.  If your board uses the direct method, set
- * 'nvram_data' to the base address of your nvram and leave 'nvram_as0' and
- * 'nvram_as1' NULL.  If your board uses address/data regs to access nvram,
- * set 'nvram_as0' to the address of the lower byte, set 'nvram_as1' to the
- * address of the upper byte (leave NULL if using mc146818), and set
- * 'nvram_data' to the address of the 8-bit data register.
- *
- * Note: Even though the documentation for the various RTC chips say that it
- * 	 take up to a second before it starts updating once the 'R' bit is
- * 	 cleared, they always seem to update even though we bang on it many
- * 	 times a second.  This is true, except for the Dallas Semi 1746/1747
- * 	 (possibly others).  Those chips seem to have a real problem whenever
- * 	 we set the 'R' bit before reading them, they basically stop counting.
- * 	 					--MAG
- */
-
-/*
- * 'todc_info' should be initialized in your *_setup.c file to
- * point to a fully initialized 'todc_info_t' structure.
- * This structure holds all the register offsets for your particular
- * TODC/RTC chip.
- * TODC_ALLOC()/TODC_INIT() will allocate and initialize this table for you.
- */
-
-#ifdef	RTC_FREQ_SELECT
-#undef	RTC_FREQ_SELECT
-#define	RTC_FREQ_SELECT		control_b	/* Register A */
-#endif
-
-#ifdef	RTC_CONTROL
-#undef	RTC_CONTROL
-#define	RTC_CONTROL		control_a	/* Register B */
-#endif
-
-#ifdef	RTC_INTR_FLAGS
-#undef	RTC_INTR_FLAGS
-#define	RTC_INTR_FLAGS		watchdog	/* Register C */
-#endif
-
-#ifdef	RTC_VALID
-#undef	RTC_VALID
-#define	RTC_VALID		interrupts	/* Register D */
-#endif
-
-/* Access routines when RTC accessed directly (like normal memory) */
-u_char
-todc_direct_read_val(int addr)
-{
-	return readb((void __iomem *)(todc_info->nvram_data + addr));
-}
-
-void
-todc_direct_write_val(int addr, unsigned char val)
-{
-	writeb(val, (void __iomem *)(todc_info->nvram_data + addr));
-	return;
-}
-
-/* Access routines for accessing m48txx type chips via addr/data regs */
-u_char
-todc_m48txx_read_val(int addr)
-{
-	outb(addr, todc_info->nvram_as0);
-	outb(addr>>todc_info->as0_bits, todc_info->nvram_as1);
-	return inb(todc_info->nvram_data);
-}
-
-void
-todc_m48txx_write_val(int addr, unsigned char val)
-{
-	outb(addr, todc_info->nvram_as0);
-	outb(addr>>todc_info->as0_bits, todc_info->nvram_as1);
-	outb(val, todc_info->nvram_data);
-	return;
-}
-
-/* Access routines for accessing mc146818 type chips via addr/data regs */
-u_char
-todc_mc146818_read_val(int addr)
-{
-	outb_p(addr, todc_info->nvram_as0);
-	return inb_p(todc_info->nvram_data);
-}
-
-void
-todc_mc146818_write_val(int addr, unsigned char val)
-{
-	outb_p(addr, todc_info->nvram_as0);
-	outb_p(val, todc_info->nvram_data);
-}
-
-
-/*
- * Routines to make RTC chips with NVRAM buried behind an addr/data pair
- * have the NVRAM and clock regs appear at the same level.
- * The NVRAM will appear to start at addr 0 and the clock regs will appear
- * to start immediately after the NVRAM (actually, start at offset
- * todc_info->nvram_size).
- */
-static inline u_char
-todc_read_val(int addr)
-{
-	u_char	val;
-
-	if (todc_info->sw_flags & TODC_FLAG_2_LEVEL_NVRAM) {
-		if (addr < todc_info->nvram_size) { /* NVRAM */
-			ppc_md.rtc_write_val(todc_info->nvram_addr_reg, addr);
-			val = ppc_md.rtc_read_val(todc_info->nvram_data_reg);
-		} else { /* Clock Reg */
-			addr -= todc_info->nvram_size;
-			val = ppc_md.rtc_read_val(addr);
-		}
-	} else
-		val = ppc_md.rtc_read_val(addr);
-
-	return val;
-}
-
-static inline void
-todc_write_val(int addr, u_char val)
-{
-	if (todc_info->sw_flags & TODC_FLAG_2_LEVEL_NVRAM) {
-		if (addr < todc_info->nvram_size) { /* NVRAM */
-			ppc_md.rtc_write_val(todc_info->nvram_addr_reg, addr);
-			ppc_md.rtc_write_val(todc_info->nvram_data_reg, val);
-		} else { /* Clock Reg */
-			addr -= todc_info->nvram_size;
-			ppc_md.rtc_write_val(addr, val);
-		}
-	} else
-		ppc_md.rtc_write_val(addr, val);
-}
-
-/*
- * TODC routines
- *
- * There is some ugly stuff in that there are assumptions for the mc146818.
- *
- * Assumptions:
- *	- todc_info->control_a has the offset as mc146818 Register B reg
- *	- todc_info->control_b has the offset as mc146818 Register A reg
- *	- m48txx control reg's write enable or 'W' bit is same as
- *	  mc146818 Register B 'SET' bit (i.e., 0x80)
- *
- * These assumptions were made to make the code simpler.
- */
-long __init
-todc_time_init(void)
-{
-	u_char	cntl_b;
-
-	if (!ppc_md.rtc_read_val)
-		ppc_md.rtc_read_val = ppc_md.nvram_read_val;
-	if (!ppc_md.rtc_write_val)
-		ppc_md.rtc_write_val = ppc_md.nvram_write_val;
-
-	cntl_b = todc_read_val(todc_info->control_b);
-
-	if (todc_info->rtc_type == TODC_TYPE_MC146818) {
-		if ((cntl_b & 0x70) != 0x20) {
-			printk(KERN_INFO "TODC real-time-clock was stopped."
-				"  Now starting...");
-			cntl_b &= ~0x70;
-			cntl_b |= 0x20;
-		}
-
-		todc_write_val(todc_info->control_b, cntl_b);
-	} else if (todc_info->rtc_type == TODC_TYPE_DS17285) {
-		u_char mode;
-
-		mode = todc_read_val(TODC_TYPE_DS17285_CNTL_A);
-		/* Make sure countdown clear is not set */
-		mode &= ~0x40;
-		/* Enable oscillator, extended register set */
-		mode |= 0x30;
-		todc_write_val(TODC_TYPE_DS17285_CNTL_A, mode);
-
-	} else if (todc_info->rtc_type == TODC_TYPE_DS1501) {
-		u_char	month;
-
-		todc_info->enable_read = TODC_DS1501_CNTL_B_TE;
-		todc_info->enable_write = TODC_DS1501_CNTL_B_TE;
-
-		month = todc_read_val(todc_info->month);
-
-		if ((month & 0x80) == 0x80) {
-			printk(KERN_INFO "TODC %s %s\n",
-				"real-time-clock was stopped.",
-				"Now starting...");
-			month &= ~0x80;
-			todc_write_val(todc_info->month, month);
-		}
-
-		cntl_b &= ~TODC_DS1501_CNTL_B_TE;
-		todc_write_val(todc_info->control_b, cntl_b);
-	} else { /* must be a m48txx type */
-		u_char	cntl_a;
-
-		todc_info->enable_read = TODC_MK48TXX_CNTL_A_R;
-		todc_info->enable_write = TODC_MK48TXX_CNTL_A_W;
-
-		cntl_a = todc_read_val(todc_info->control_a);
-
-		/* Check & clear STOP bit in control B register */
-		if (cntl_b & TODC_MK48TXX_DAY_CB) {
-			printk(KERN_INFO "TODC %s %s\n",
-				"real-time-clock was stopped.",
-				"Now starting...");
-
-			cntl_a |= todc_info->enable_write;
-			cntl_b &= ~TODC_MK48TXX_DAY_CB;/* Start Oscil */
-
-			todc_write_val(todc_info->control_a, cntl_a);
-			todc_write_val(todc_info->control_b, cntl_b);
-		}
-
-		/* Make sure READ & WRITE bits are cleared. */
-		cntl_a &= ~(todc_info->enable_write | todc_info->enable_read);
-		todc_write_val(todc_info->control_a, cntl_a);
-	}
-
-	return 0;
-}
-
-/*
- * There is some ugly stuff in that there are assumptions that for a mc146818,
- * the todc_info->control_a has the offset of the mc146818 Register B reg and
- * that the register'ss 'SET' bit is the same as the m48txx's write enable
- * bit in the control register of the m48txx (i.e., 0x80).
- *
- * It was done to make the code look simpler.
- */
-void
-todc_get_rtc_time(struct rtc_time *tm)
-{
-	uint	year = 0, mon = 0, mday = 0, hour = 0, min = 0, sec = 0;
-	uint	limit, i;
-	u_char	save_control, uip = 0;
-	extern void GregorianDay(struct rtc_time *);
-
-	spin_lock(&rtc_lock);
-	save_control = todc_read_val(todc_info->control_a);
-
-	if (todc_info->rtc_type != TODC_TYPE_MC146818) {
-		limit = 1;
-
-		switch (todc_info->rtc_type) {
-		case TODC_TYPE_DS1553:
-		case TODC_TYPE_DS1557:
-		case TODC_TYPE_DS1743:
-		case TODC_TYPE_DS1746:	/* XXXX BAD HACK -> FIX */
-		case TODC_TYPE_DS1747:
-		case TODC_TYPE_DS17285:
-			break;
-		default:
-			todc_write_val(todc_info->control_a,
-				(save_control | todc_info->enable_read));
-		}
-	} else
-		limit = 100000000;
-
-	for (i=0; i<limit; i++) {
-		if (todc_info->rtc_type == TODC_TYPE_MC146818)
-			uip = todc_read_val(todc_info->RTC_FREQ_SELECT);
-
-		sec = todc_read_val(todc_info->seconds) & 0x7f;
-		min = todc_read_val(todc_info->minutes) & 0x7f;
-		hour = todc_read_val(todc_info->hours) & 0x3f;
-		mday = todc_read_val(todc_info->day_of_month) & 0x3f;
-		mon = todc_read_val(todc_info->month) & 0x1f;
-		year = todc_read_val(todc_info->year) & 0xff;
-
-		if (todc_info->rtc_type == TODC_TYPE_MC146818) {
-			uip |= todc_read_val(todc_info->RTC_FREQ_SELECT);
-			if ((uip & RTC_UIP) == 0)
-				break;
-		}
-	}
-
-	if (todc_info->rtc_type != TODC_TYPE_MC146818) {
-		switch (todc_info->rtc_type) {
-		case TODC_TYPE_DS1553:
-		case TODC_TYPE_DS1557:
-		case TODC_TYPE_DS1743:
-		case TODC_TYPE_DS1746:	/* XXXX BAD HACK -> FIX */
-		case TODC_TYPE_DS1747:
-		case TODC_TYPE_DS17285:
-			break;
-		default:
-			save_control &= ~(todc_info->enable_read);
-			todc_write_val(todc_info->control_a, save_control);
-		}
-	}
-	spin_unlock(&rtc_lock);
-
-	if ((todc_info->rtc_type != TODC_TYPE_MC146818)
-			|| ((save_control & RTC_DM_BINARY) == 0)
-			|| RTC_ALWAYS_BCD) {
-		BCD_TO_BIN(sec);
-		BCD_TO_BIN(min);
-		BCD_TO_BIN(hour);
-		BCD_TO_BIN(mday);
-		BCD_TO_BIN(mon);
-		BCD_TO_BIN(year);
-	}
-
-	if ((year + 1900) < 1970) {
-		year += 100;
-	}
-
-	tm->tm_sec = sec;
-	tm->tm_min = min;
-	tm->tm_hour = hour;
-	tm->tm_mday = mday;
-	tm->tm_mon = mon;
-	tm->tm_year = year;
-
-	GregorianDay(tm);
-}
-
-int
-todc_set_rtc_time(struct rtc_time *tm)
-{
-	u_char save_control, save_freq_select = 0;
-
-	spin_lock(&rtc_lock);
-	save_control = todc_read_val(todc_info->control_a);
-
-	/* Assuming MK48T59_RTC_CA_WRITE & RTC_SET are equal */
-	todc_write_val(todc_info->control_a,
-		(save_control | todc_info->enable_write));
-	save_control &= ~(todc_info->enable_write); /* in case it was set */
-
-	if (todc_info->rtc_type == TODC_TYPE_MC146818) {
-		save_freq_select = todc_read_val(todc_info->RTC_FREQ_SELECT);
-		todc_write_val(todc_info->RTC_FREQ_SELECT,
-			save_freq_select | RTC_DIV_RESET2);
-	}
-
-	if ((todc_info->rtc_type != TODC_TYPE_MC146818)
-			|| ((save_control & RTC_DM_BINARY) == 0)
-			|| RTC_ALWAYS_BCD) {
-		BIN_TO_BCD(tm->tm_sec);
-		BIN_TO_BCD(tm->tm_min);
-		BIN_TO_BCD(tm->tm_hour);
-		BIN_TO_BCD(tm->tm_mon);
-		BIN_TO_BCD(tm->tm_mday);
-		BIN_TO_BCD(tm->tm_year);
-	}
-
-	todc_write_val(todc_info->seconds, tm->tm_sec);
-	todc_write_val(todc_info->minutes, tm->tm_min);
-	todc_write_val(todc_info->hours, tm->tm_hour);
-	todc_write_val(todc_info->month, tm->tm_mon);
-	todc_write_val(todc_info->day_of_month, tm->tm_mday);
-	todc_write_val(todc_info->year, tm->tm_year);
-
-	todc_write_val(todc_info->control_a, save_control);
-
-	if (todc_info->rtc_type == TODC_TYPE_MC146818)
-		todc_write_val(todc_info->RTC_FREQ_SELECT, save_freq_select);
-
-	spin_unlock(&rtc_lock);
-	return 0;
-}
diff --git a/arch/powerpc/sysdev/tsi108_pci.c b/arch/powerpc/sysdev/tsi108_pci.c
index 322f86e93de..ae249c6bbbc 100644
--- a/arch/powerpc/sysdev/tsi108_pci.c
+++ b/arch/powerpc/sysdev/tsi108_pci.c
@@ -3,6 +3,8 @@
  *
  * 2004-2005 (c) Tundra Semiconductor Corp.
  * Author: Alex Bounine (alexandreb@tundra.com)
+ * Author: Roy Zang (tie-fei.zang@freescale.com)
+ * 	   Add pci interrupt router host
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License as published by the Free
@@ -48,6 +50,8 @@
 
 u32 tsi108_pci_cfg_base;
 u32 tsi108_csr_vir_base;
+static struct device_node *pci_irq_node;
+static struct irq_host *pci_irq_host;
 
 extern u32 get_vir_csrbase(void);
 extern u32 tsi108_read_reg(u32 reg_offset);
@@ -378,6 +382,38 @@ static struct irq_chip tsi108_pci_irq = {
 	.unmask = tsi108_pci_irq_enable,
 };
 
+static int pci_irq_host_xlate(struct irq_host *h, struct device_node *ct,
+			    u32 *intspec, unsigned int intsize,
+			    irq_hw_number_t *out_hwirq, unsigned int *out_flags)
+{
+	*out_hwirq = intspec[0];
+	*out_flags = IRQ_TYPE_LEVEL_HIGH;
+	return 0;
+}
+
+static int pci_irq_host_map(struct irq_host *h, unsigned int virq,
+			  irq_hw_number_t hw)
+{	unsigned int irq;
+	DBG("%s(%d, 0x%lx)\n", __FUNCTION__, virq, hw);
+	if ((virq >= 1) && (virq <= 4)){
+		irq = virq + IRQ_PCI_INTAD_BASE - 1;
+		get_irq_desc(irq)->status |= IRQ_LEVEL;
+		set_irq_chip(irq, &tsi108_pci_irq);
+	}
+	return 0;
+}
+
+static int pci_irq_host_match(struct irq_host *h, struct device_node *node)
+{
+	return pci_irq_node == node;
+}
+
+static struct irq_host_ops pci_irq_host_ops = {
+	.match = pci_irq_host_match,
+	.map = pci_irq_host_map,
+	.xlate = pci_irq_host_xlate,
+};
+
 /*
  * Exported functions
  */
@@ -391,15 +427,15 @@ static struct irq_chip tsi108_pci_irq = {
  * to the MPIC.
  */
 
-void __init tsi108_pci_int_init(void)
+void __init tsi108_pci_int_init(struct device_node *node)
 {
-	u_int i;
-
 	DBG("Tsi108_pci_int_init: initializing PCI interrupts\n");
 
-	for (i = 0; i < NUM_PCI_IRQS; i++) {
-		irq_desc[i + IRQ_PCI_INTAD_BASE].chip = &tsi108_pci_irq;
-		irq_desc[i + IRQ_PCI_INTAD_BASE].status |= IRQ_LEVEL;
+	pci_irq_node = of_node_get(node);
+	pci_irq_host = irq_alloc_host(IRQ_HOST_MAP_LEGACY, 0, &pci_irq_host_ops, 0);
+	if (pci_irq_host == NULL) {
+		printk(KERN_ERR "pci_irq_host: failed to allocate irq host !\n");
+		return;
 	}
 
 	init_pci_source();