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authorAtsushi Nemoto <anemo@mba.ocn.ne.jp>2009-04-23 00:40:31 +0900
committerRalf Baechle <ralf@linux-mips.org>2009-06-17 11:06:25 +0100
commitf48c8c958a2d39f13dace880d15a6e711aafe577 (patch)
tree0d0c6f4aebca09ce7279a59a25810e9d6e09dd85 /arch/mips/txx9/generic/setup.c
parentea76f0b3759283ec3cc06c86e266bf0fa6a981d2 (diff)
MIPS: TXx9: Add DMAC support
Add platform support for DMAC of TXx9 SoCs. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/txx9/generic/setup.c')
-rw-r--r--arch/mips/txx9/generic/setup.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c
index 8a266c6a3f5..369d8637217 100644
--- a/arch/mips/txx9/generic/setup.c
+++ b/arch/mips/txx9/generic/setup.c
@@ -33,6 +33,7 @@
#include <asm/txx9/pci.h>
#include <asm/txx9tmr.h>
#include <asm/txx9/ndfmc.h>
+#include <asm/txx9/dmac.h>
#ifdef CONFIG_CPU_TX49XX
#include <asm/txx9/tx4938.h>
#endif
@@ -821,3 +822,57 @@ void __init txx9_iocled_init(unsigned long baseaddr,
{
}
#endif /* CONFIG_LEDS_GPIO */
+
+void __init txx9_dmac_init(int id, unsigned long baseaddr, int irq,
+ const struct txx9dmac_platform_data *pdata)
+{
+#if defined(CONFIG_TXX9_DMAC) || defined(CONFIG_TXX9_DMAC_MODULE)
+ struct resource res[] = {
+ {
+ .start = baseaddr,
+ .end = baseaddr + 0x800 - 1,
+ .flags = IORESOURCE_MEM,
+#ifndef CONFIG_MACH_TX49XX
+ }, {
+ .start = irq,
+ .flags = IORESOURCE_IRQ,
+#endif
+ }
+ };
+#ifdef CONFIG_MACH_TX49XX
+ struct resource chan_res[] = {
+ {
+ .flags = IORESOURCE_IRQ,
+ }
+ };
+#endif
+ struct platform_device *pdev = platform_device_alloc("txx9dmac", id);
+ struct txx9dmac_chan_platform_data cpdata;
+ int i;
+
+ if (!pdev ||
+ platform_device_add_resources(pdev, res, ARRAY_SIZE(res)) ||
+ platform_device_add_data(pdev, pdata, sizeof(*pdata)) ||
+ platform_device_add(pdev)) {
+ platform_device_put(pdev);
+ return;
+ }
+ memset(&cpdata, 0, sizeof(cpdata));
+ cpdata.dmac_dev = pdev;
+ for (i = 0; i < TXX9_DMA_MAX_NR_CHANNELS; i++) {
+#ifdef CONFIG_MACH_TX49XX
+ chan_res[0].start = irq + i;
+#endif
+ pdev = platform_device_alloc("txx9dmac-chan",
+ id * TXX9_DMA_MAX_NR_CHANNELS + i);
+ if (!pdev ||
+#ifdef CONFIG_MACH_TX49XX
+ platform_device_add_resources(pdev, chan_res,
+ ARRAY_SIZE(chan_res)) ||
+#endif
+ platform_device_add_data(pdev, &cpdata, sizeof(cpdata)) ||
+ platform_device_add(pdev))
+ platform_device_put(pdev);
+ }
+#endif
+}