diff options
| author | Atsushi Nemoto <anemo@mba.ocn.ne.jp> | 2009-04-23 00:40:31 +0900 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2009-06-17 11:06:25 +0100 |
| commit | f48c8c958a2d39f13dace880d15a6e711aafe577 (patch) | |
| tree | 0d0c6f4aebca09ce7279a59a25810e9d6e09dd85 /arch/mips/txx9/generic/setup.c | |
| parent | ea76f0b3759283ec3cc06c86e266bf0fa6a981d2 (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.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/arch/mips/txx9/generic/setup.c b/arch/mips/txx9/generic/setup.c index 8a266c6a3f58..369d8637217d 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 +} |