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-rw-r--r--arch/sh/drivers/Makefile1
-rw-r--r--arch/sh/drivers/dma/dma-sh.c45
-rw-r--r--arch/sh/drivers/heartbeat.c132
-rw-r--r--arch/sh/drivers/pci/Makefile1
-rw-r--r--arch/sh/drivers/pci/ops-bigsur.c83
-rw-r--r--arch/sh/drivers/pci/pci-sh7751.c9
6 files changed, 149 insertions, 122 deletions
diff --git a/arch/sh/drivers/Makefile b/arch/sh/drivers/Makefile
index bf18dbfb678..6cb92676c5f 100644
--- a/arch/sh/drivers/Makefile
+++ b/arch/sh/drivers/Makefile
@@ -6,3 +6,4 @@ obj-$(CONFIG_PCI) += pci/
obj-$(CONFIG_SH_DMA) += dma/
obj-$(CONFIG_SUPERHYWAY) += superhyway/
obj-$(CONFIG_PUSH_SWITCH) += push-switch.o
+obj-$(CONFIG_HEARTBEAT) += heartbeat.o
diff --git a/arch/sh/drivers/dma/dma-sh.c b/arch/sh/drivers/dma/dma-sh.c
index f63721ed86c..06ed0609a95 100644
--- a/arch/sh/drivers/dma/dma-sh.c
+++ b/arch/sh/drivers/dma/dma-sh.c
@@ -19,34 +19,26 @@
#include <asm/io.h>
#include "dma-sh.h"
-
-
-#ifdef CONFIG_CPU_SH4
-static struct ipr_data dmae_ipr_map[] = {
- { DMAE_IRQ, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
-};
+static int dmte_irq_map[] = {
+ DMTE0_IRQ,
+ DMTE1_IRQ,
+ DMTE2_IRQ,
+ DMTE3_IRQ,
+#if defined(CONFIG_CPU_SUBTYPE_SH7751R) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7760) || \
+ defined(CONFIG_CPU_SUBTYPE_SH7780)
+ DMTE4_IRQ,
+ DMTE5_IRQ,
+ DMTE6_IRQ,
+ DMTE7_IRQ,
#endif
-static struct ipr_data dmte_ipr_map[] = {
- /*
- * Normally we could just do DMTE0_IRQ + chan outright, though in the
- * case of the 7751R, the DMTE IRQs for channels > 4 start right above
- * the SCIF
- */
- { DMTE0_IRQ + 0, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
- { DMTE0_IRQ + 1, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
- { DMTE0_IRQ + 2, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
- { DMTE0_IRQ + 3, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
- { DMTE4_IRQ + 0, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
- { DMTE4_IRQ + 1, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
- { DMTE4_IRQ + 2, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
- { DMTE4_IRQ + 3, DMA_IPR_ADDR, DMA_IPR_POS, DMA_PRIORITY },
};
static inline unsigned int get_dmte_irq(unsigned int chan)
{
unsigned int irq = 0;
- if (chan < ARRAY_SIZE(dmte_ipr_map))
- irq = dmte_ipr_map[chan].irq;
+ if (chan < ARRAY_SIZE(dmte_irq_map))
+ irq = dmte_irq_map[chan];
return irq;
}
@@ -103,7 +95,7 @@ static void sh_dmac_free_dma(struct dma_channel *chan)
free_irq(get_dmte_irq(chan->chan), chan);
}
-static void
+static int
sh_dmac_configure_channel(struct dma_channel *chan, unsigned long chcr)
{
if (!chcr)
@@ -119,6 +111,7 @@ sh_dmac_configure_channel(struct dma_channel *chan, unsigned long chcr)
ctrl_outl(chcr, CHCR[chan->chan]);
chan->flags |= DMA_CONFIGURED;
+ return 0;
}
static void sh_dmac_enable_dma(struct dma_channel *chan)
@@ -262,17 +255,11 @@ static int __init sh_dmac_init(void)
int i;
#ifdef CONFIG_CPU_SH4
- make_ipr_irq(dmae_ipr_map, ARRAY_SIZE(dmae_ipr_map));
i = request_irq(DMAE_IRQ, dma_err, IRQF_DISABLED, "DMAC Address Error", 0);
if (unlikely(i < 0))
return i;
#endif
- i = info->nr_channels;
- if (i > ARRAY_SIZE(dmte_ipr_map))
- i = ARRAY_SIZE(dmte_ipr_map);
- make_ipr_irq(dmte_ipr_map, i);
-
/*
* Initialize DMAOR, and clean up any error flags that may have
* been set.
diff --git a/arch/sh/drivers/heartbeat.c b/arch/sh/drivers/heartbeat.c
new file mode 100644
index 00000000000..bc59cb6cd78
--- /dev/null
+++ b/arch/sh/drivers/heartbeat.c
@@ -0,0 +1,132 @@
+/*
+ * Generic heartbeat driver for regular LED banks
+ *
+ * Copyright (C) 2007 Paul Mundt
+ *
+ * Most SH reference boards include a number of individual LEDs that can
+ * be independently controlled (either via a pre-defined hardware
+ * function or via the LED class, if desired -- the hardware tends to
+ * encapsulate some of the same "triggers" that the LED class supports,
+ * so there's not too much value in it).
+ *
+ * Additionally, most of these boards also have a LED bank that we've
+ * traditionally used for strobing the load average. This use case is
+ * handled by this driver, rather than giving each LED bit position its
+ * own struct device.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/io.h>
+
+#define DRV_NAME "heartbeat"
+#define DRV_VERSION "0.1.0"
+
+struct heartbeat_data {
+ void __iomem *base;
+ unsigned char bit_pos[8];
+ struct timer_list timer;
+};
+
+static void heartbeat_timer(unsigned long data)
+{
+ struct heartbeat_data *hd = (struct heartbeat_data *)data;
+ static unsigned bit = 0, up = 1;
+
+ ctrl_outw(1 << hd->bit_pos[bit], (unsigned long)hd->base);
+ if (up)
+ if (bit == (ARRAY_SIZE(hd->bit_pos) - 1)) {
+ bit--;
+ up = 0;
+ } else
+ bit++;
+ else if (bit == 0)
+ up = 1;
+ else
+ bit--;
+
+ mod_timer(&hd->timer, jiffies + (110 - ((300 << FSHIFT) /
+ ((avenrun[0] / 5) + (3 << FSHIFT)))));
+}
+
+static int heartbeat_drv_probe(struct platform_device *pdev)
+{
+ struct resource *res;
+ struct heartbeat_data *hd;
+
+ if (unlikely(pdev->num_resources != 1)) {
+ dev_err(&pdev->dev, "invalid number of resources\n");
+ return -EINVAL;
+ }
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (unlikely(res == NULL)) {
+ dev_err(&pdev->dev, "invalid resource\n");
+ return -EINVAL;
+ }
+
+ hd = kmalloc(sizeof(struct heartbeat_data), GFP_KERNEL);
+ if (unlikely(!hd))
+ return -ENOMEM;
+
+ if (pdev->dev.platform_data) {
+ memcpy(hd->bit_pos, pdev->dev.platform_data,
+ ARRAY_SIZE(hd->bit_pos));
+ } else {
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(hd->bit_pos); i++)
+ hd->bit_pos[i] = i;
+ }
+
+ hd->base = (void __iomem *)res->start;
+
+ setup_timer(&hd->timer, heartbeat_timer, (unsigned long)hd);
+ platform_set_drvdata(pdev, hd);
+
+ return mod_timer(&hd->timer, jiffies + 1);
+}
+
+static int heartbeat_drv_remove(struct platform_device *pdev)
+{
+ struct heartbeat_data *hd = platform_get_drvdata(pdev);
+
+ del_timer_sync(&hd->timer);
+
+ platform_set_drvdata(pdev, NULL);
+
+ kfree(hd);
+
+ return 0;
+}
+
+static struct platform_driver heartbeat_driver = {
+ .probe = heartbeat_drv_probe,
+ .remove = heartbeat_drv_remove,
+ .driver = {
+ .name = DRV_NAME,
+ },
+};
+
+static int __init heartbeat_init(void)
+{
+ printk(KERN_NOTICE DRV_NAME ": version %s loaded\n", DRV_VERSION);
+ return platform_driver_register(&heartbeat_driver);
+}
+
+static void __exit heartbeat_exit(void)
+{
+ platform_driver_unregister(&heartbeat_driver);
+}
+module_init(heartbeat_init);
+module_exit(heartbeat_exit);
+
+MODULE_VERSION(DRV_VERSION);
+MODULE_AUTHOR("Paul Mundt");
+MODULE_LICENSE("GPLv2");
diff --git a/arch/sh/drivers/pci/Makefile b/arch/sh/drivers/pci/Makefile
index 9e00cb8a39e..cc8d0d0b142 100644
--- a/arch/sh/drivers/pci/Makefile
+++ b/arch/sh/drivers/pci/Makefile
@@ -12,7 +12,6 @@ obj-$(CONFIG_CPU_SUBTYPE_SH7780) += pci-sh7780.o ops-sh4.o
obj-$(CONFIG_SH_DREAMCAST) += ops-dreamcast.o fixups-dreamcast.o \
dma-dreamcast.o
obj-$(CONFIG_SH_SECUREEDGE5410) += ops-snapgear.o
-obj-$(CONFIG_SH_BIGSUR) += ops-bigsur.o
obj-$(CONFIG_SH_RTS7751R2D) += ops-rts7751r2d.o fixups-rts7751r2d.o
obj-$(CONFIG_SH_SH03) += ops-sh03.o fixups-sh03.o
obj-$(CONFIG_SH_R7780RP) += ops-r7780rp.o fixups-r7780rp.o
diff --git a/arch/sh/drivers/pci/ops-bigsur.c b/arch/sh/drivers/pci/ops-bigsur.c
deleted file mode 100644
index eb31be75152..00000000000
--- a/arch/sh/drivers/pci/ops-bigsur.c
+++ /dev/null
@@ -1,83 +0,0 @@
-/*
- * linux/arch/sh/drivers/pci/ops-bigsur.c
- *
- * By Dustin McIntire (dustin@sensoria.com) (c)2001
- *
- * Ported to new API by Paul Mundt <lethal@linux-sh.org>.
- *
- * May be copied or modified under the terms of the GNU General Public
- * License. See linux/COPYING for more information.
- *
- * PCI initialization for the Hitachi Big Sur Evaluation Board
- */
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <asm/io.h>
-#include "pci-sh4.h"
-#include <asm/bigsur/bigsur.h>
-
-#define BIGSUR_PCI_IO 0x4000
-#define BIGSUR_PCI_MEM 0xfd000000
-
-static struct resource sh7751_io_resource = {
- .name = "SH7751 IO",
- .start = BIGSUR_PCI_IO,
- .end = BIGSUR_PCI_IO + (64*1024) - 1,
- .flags = IORESOURCE_IO,
-};
-
-static struct resource sh7751_mem_resource = {
- .name = "SH7751 mem",
- .start = BIGSUR_PCI_MEM,
- .end = BIGSUR_PCI_MEM + (64*1024*1024) - 1,
- .flags = IORESOURCE_MEM,
-};
-
-extern struct pci_ops sh7751_pci_ops;
-
-struct pci_channel board_pci_channels[] = {
- { &sh4_pci_ops, &sh7751_io_resource, &sh7751_mem_resource, 0, 0xff },
- { 0, }
-};
-
-static struct sh4_pci_address_map sh7751_pci_map = {
- .window0 = {
- .base = SH7751_CS3_BASE_ADDR,
- .size = BIGSUR_LSR0_SIZE,
- },
-
- .window1 = {
- .base = SH7751_CS3_BASE_ADDR,
- .size = BIGSUR_LSR1_SIZE,
- },
-};
-
-/*
- * Initialize the Big Sur PCI interface
- * Setup hardware to be Central Funtion
- * Copy the BSR regs to the PCI interface
- * Setup PCI windows into local RAM
- */
-int __init pcibios_init_platform(void)
-{
- return sh7751_pcic_init(&sh7751_pci_map);
-}
-
-int __init pcibios_map_platform_irq(struct pci_dev *pdev, u8 slot, u8 pin)
-{
- /*
- * The Big Sur can be used in a CPCI chassis, but the SH7751 PCI
- * interface is on the wrong end of the board so that it can also
- * support a V320 CPI interface chip... Therefor the IRQ mapping is
- * somewhat use dependent... I'l assume a linear map for now, i.e.
- * INTA=slot0,pin0... INTD=slot3,pin0...
- */
- int irq = (slot + pin-1) % 4 + BIGSUR_SH7751_PCI_IRQ_BASE;
-
- PCIDBG(2, "PCI: Mapping Big Sur IRQ for slot %d, pin %c to irq %d\n",
- slot, pin-1+'A', irq);
-
- return irq;
-}
diff --git a/arch/sh/drivers/pci/pci-sh7751.c b/arch/sh/drivers/pci/pci-sh7751.c
index 85e1ee2e2e7..9ddff760d3c 100644
--- a/arch/sh/drivers/pci/pci-sh7751.c
+++ b/arch/sh/drivers/pci/pci-sh7751.c
@@ -157,15 +157,6 @@ int __init sh7751_pcic_init(struct sh4_pci_address_map *map)
PCIBIOS_MIN_IO, (64 << 10),
SH7751_PCI_IO_BASE + PCIBIOS_MIN_IO);
- /*
- * XXX: For now, leave this board-specific. In the event we have other
- * boards that need to do similar work, this can be wrapped.
- */
-#ifdef CONFIG_SH_BIGSUR
- bigsur_port_map(PCIBIOS_MIN_IO, (64 << 10),
- SH7751_PCI_IO_BASE + PCIBIOS_MIN_IO, 0);
-#endif
-
/* Make sure the MSB's of IO window are set to access PCI space
* correctly */
word = PCIBIOS_MIN_IO & SH4_PCIIOBR_MASK;
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-06 20:23:52 +0000