diff options
| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2014-06-20 14:37:38 +0200 |
|---|---|---|
| committer | Simon Horman <horms+renesas@verge.net.au> | 2014-07-09 10:55:57 +0200 |
| commit | 6b32fafee2bb5fcf0b3d3d04a9762d3a0212089e (patch) | |
| tree | 150c5661c704174150299b62b82b10f704353934 /include/linux/sh_dma.h | |
| parent | 7171511eaec5bf23fb06078f59784a3a0626b38f (diff) | |
| download | lwn-6b32fafee2bb5fcf0b3d3d04a9762d3a0212089e.tar.gz lwn-6b32fafee2bb5fcf0b3d3d04a9762d3a0212089e.zip | |
dmaengine: shdma: Add more register documentation
Also add a few definitions that were missing.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Diffstat (limited to 'include/linux/sh_dma.h')
| -rw-r--r-- | include/linux/sh_dma.h | 24 |
1 files changed, 13 insertions, 11 deletions
diff --git a/include/linux/sh_dma.h b/include/linux/sh_dma.h index b7b43b82231e..56b97eed28a4 100644 --- a/include/linux/sh_dma.h +++ b/include/linux/sh_dma.h @@ -95,19 +95,21 @@ struct sh_dmae_pdata { }; /* DMAOR definitions */ -#define DMAOR_AE 0x00000004 +#define DMAOR_AE 0x00000004 /* Address Error Flag */ #define DMAOR_NMIF 0x00000002 -#define DMAOR_DME 0x00000001 +#define DMAOR_DME 0x00000001 /* DMA Master Enable */ /* Definitions for the SuperH DMAC */ -#define DM_INC 0x00004000 -#define DM_DEC 0x00008000 -#define DM_FIX 0x0000c000 -#define SM_INC 0x00001000 -#define SM_DEC 0x00002000 -#define SM_FIX 0x00003000 -#define CHCR_DE 0x00000001 -#define CHCR_TE 0x00000002 -#define CHCR_IE 0x00000004 +#define DM_INC 0x00004000 /* Destination addresses are incremented */ +#define DM_DEC 0x00008000 /* Destination addresses are decremented */ +#define DM_FIX 0x0000c000 /* Destination address is fixed */ +#define SM_INC 0x00001000 /* Source addresses are incremented */ +#define SM_DEC 0x00002000 /* Source addresses are decremented */ +#define SM_FIX 0x00003000 /* Source address is fixed */ +#define RS_AUTO 0x00000400 /* Auto Request */ +#define RS_ERS 0x00000800 /* DMA extended resource selector */ +#define CHCR_DE 0x00000001 /* DMA Enable */ +#define CHCR_TE 0x00000002 /* Transfer End Flag */ +#define CHCR_IE 0x00000004 /* Interrupt Enable */ #endif |