diff options
| -rw-r--r-- | arch/sh/include/cpu-sh4/cpu/dma-register.h | 3 | ||||
| -rw-r--r-- | arch/sh/kernel/cpu/sh4a/setup-sh7786.c | 82 |
2 files changed, 83 insertions, 2 deletions
diff --git a/arch/sh/include/cpu-sh4/cpu/dma-register.h b/arch/sh/include/cpu-sh4/cpu/dma-register.h index 55f9fec082d4..5df4df0c08dd 100644 --- a/arch/sh/include/cpu-sh4/cpu/dma-register.h +++ b/arch/sh/include/cpu-sh4/cpu/dma-register.h @@ -23,7 +23,8 @@ #define CHCR_TS_HIGH_MASK 0 #define CHCR_TS_HIGH_SHIFT 0 #elif defined(CONFIG_CPU_SUBTYPE_SH7722) || \ - defined(CONFIG_CPU_SUBTYPE_SH7724) + defined(CONFIG_CPU_SUBTYPE_SH7724) || \ + defined(CONFIG_CPU_SUBTYPE_SH7786) #define CHCR_TS_LOW_MASK 0x00000018 #define CHCR_TS_LOW_SHIFT 3 #define CHCR_TS_HIGH_MASK 0x00300000 diff --git a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c index f5599907ac3d..61e549190873 100644 --- a/arch/sh/kernel/cpu/sh4a/setup-sh7786.c +++ b/arch/sh/kernel/cpu/sh4a/setup-sh7786.c @@ -1,7 +1,7 @@ /* * SH7786 Setup * - * Copyright (C) 2009 Renesas Solutions Corp. + * Copyright (C) 2009 - 2010 Renesas Solutions Corp. * Kuninori Morimoto <morimoto.kuninori@renesas.com> * Paul Mundt <paul.mundt@renesas.com> * @@ -21,7 +21,9 @@ #include <linux/mm.h> #include <linux/dma-mapping.h> #include <linux/sh_timer.h> +#include <cpu/dma-register.h> #include <asm/mmzone.h> +#include <asm/dmaengine.h> static struct plat_sci_port scif0_platform_data = { .mapbase = 0xffea0000, @@ -442,6 +444,83 @@ static struct platform_device tmu11_device = { .num_resources = ARRAY_SIZE(tmu11_resources), }; +static struct sh_dmae_channel dmac0_channels[] = { + { + .offset = 0, + .dmars = 0, + .dmars_bit = 0, + }, { + .offset = 0x10, + .dmars = 0, + .dmars_bit = 8, + }, { + .offset = 0x20, + .dmars = 4, + .dmars_bit = 0, + }, { + .offset = 0x30, + .dmars = 4, + .dmars_bit = 8, + }, { + .offset = 0x50, + .dmars = 8, + .dmars_bit = 0, + }, { + .offset = 0x60, + .dmars = 8, + .dmars_bit = 8, + } +}; + +static unsigned int ts_shift[] = TS_SHIFT; + +static struct sh_dmae_pdata dma0_platform_data = { + .channel = dmac0_channels, + .channel_num = ARRAY_SIZE(dmac0_channels), + .ts_low_shift = CHCR_TS_LOW_SHIFT, + .ts_low_mask = CHCR_TS_LOW_MASK, + .ts_high_shift = CHCR_TS_HIGH_SHIFT, + .ts_high_mask = CHCR_TS_HIGH_MASK, + .ts_shift = ts_shift, + .ts_shift_num = ARRAY_SIZE(ts_shift), + .dmaor_init = DMAOR_INIT, +}; + +/* Resource order important! */ +static struct resource dmac0_resources[] = { + { + /* Channel registers and DMAOR */ + .start = 0xfe008020, + .end = 0xfe00808f, + .flags = IORESOURCE_MEM, + }, { + /* DMARSx */ + .start = 0xfe009000, + .end = 0xfe00900b, + .flags = IORESOURCE_MEM, + }, { + /* DMA error IRQ */ + .start = evt2irq(0x5c0), + .end = evt2irq(0x5c0), + .flags = IORESOURCE_IRQ, + }, { + /* IRQ for channels 0-5 */ + .start = evt2irq(0x500), + .end = evt2irq(0x5a0), + .flags = IORESOURCE_IRQ, + }, +}; + +static struct platform_device dma0_device = { + .name = "sh-dma-engine", + .id = 0, + .resource = dmac0_resources, + .num_resources = ARRAY_SIZE(dmac0_resources), + .dev = { + .platform_data = &dma0_platform_data, + }, +}; + static struct resource usb_ohci_resources[] = { [0] = { .start = 0xffe70400, @@ -489,6 +568,7 @@ static struct platform_device *sh7786_early_devices[] __initdata = { }; static struct platform_device *sh7786_devices[] __initdata = { + &dma0_device, &usb_ohci_device, }; |