diff options
Diffstat (limited to 'arch/sh/drivers/dma/dma-sh.h')
| -rw-r--r-- | arch/sh/drivers/dma/dma-sh.h | 44 |
1 files changed, 33 insertions, 11 deletions
diff --git a/arch/sh/drivers/dma/dma-sh.h b/arch/sh/drivers/dma/dma-sh.h index dd9d547539a24..0f591fbc922d3 100644 --- a/arch/sh/drivers/dma/dma-sh.h +++ b/arch/sh/drivers/dma/dma-sh.h @@ -11,6 +11,8 @@ #ifndef __DMA_SH_H #define __DMA_SH_H +#include <asm/cpu/dma.h> + /* Definitions for the SuperH DMAC */ #define REQ_L 0x00000000 #define REQ_E 0x00080000 @@ -26,27 +28,47 @@ #define SM_DEC 0x00002000 #define RS_IN 0x00000200 #define RS_OUT 0x00000300 -#define TM_BURST 0x0000080 -#define TS_8 0x00000010 -#define TS_16 0x00000020 -#define TS_32 0x00000030 -#define TS_64 0x00000000 #define TS_BLK 0x00000040 #define CHCR_DE 0x00000001 #define CHCR_TE 0x00000002 #define CHCR_IE 0x00000004 -/* Define the default configuration for dual address memory-memory transfer. - * The 0x400 value represents auto-request, external->external. - */ -#define RS_DUAL (DM_INC | SM_INC | 0x400 | TS_32) - -#define DMAOR_COD 0x00000008 +/* DMAOR definitions */ #define DMAOR_AE 0x00000004 #define DMAOR_NMIF 0x00000002 #define DMAOR_DME 0x00000001 +/* + * Define the default configuration for dual address memory-memory transfer. + * The 0x400 value represents auto-request, external->external. + */ +#define RS_DUAL (DM_INC | SM_INC | 0x400 | TS_32) + #define MAX_DMAC_CHANNELS (CONFIG_NR_ONCHIP_DMA_CHANNELS) +/* + * Subtypes that have fewer channels than this simply need to change + * CONFIG_NR_ONCHIP_DMA_CHANNELS. Likewise, subtypes with a larger number + * of channels should expand on this. + * + * For most subtypes we can easily figure these values out with some + * basic calculation, unfortunately on other subtypes these are more + * scattered, so we just leave it unrolled for simplicity. + */ +#define SAR ((unsigned long[]){SH_DMAC_BASE + 0x00, SH_DMAC_BASE + 0x10, \ + SH_DMAC_BASE + 0x20, SH_DMAC_BASE + 0x30, \ + SH_DMAC_BASE + 0x50, SH_DMAC_BASE + 0x60}) +#define DAR ((unsigned long[]){SH_DMAC_BASE + 0x04, SH_DMAC_BASE + 0x14, \ + SH_DMAC_BASE + 0x24, SH_DMAC_BASE + 0x34, \ + SH_DMAC_BASE + 0x54, SH_DMAC_BASE + 0x64}) +#define DMATCR ((unsigned long[]){SH_DMAC_BASE + 0x08, SH_DMAC_BASE + 0x18, \ + SH_DMAC_BASE + 0x28, SH_DMAC_BASE + 0x38, \ + SH_DMAC_BASE + 0x58, SH_DMAC_BASE + 0x68}) +#define CHCR ((unsigned long[]){SH_DMAC_BASE + 0x0c, SH_DMAC_BASE + 0x1c, \ + SH_DMAC_BASE + 0x2c, SH_DMAC_BASE + 0x3c, \ + SH_DMAC_BASE + 0x5c, SH_DMAC_BASE + 0x6c}) + +#define DMAOR (SH_DMAC_BASE + 0x40) + #endif /* __DMA_SH_H */ |