diff options
| author | Olof Johansson <olof@lixom.net> | 2013-06-14 18:51:21 -0700 |
|---|---|---|
| committer | Olof Johansson <olof@lixom.net> | 2013-06-14 18:51:21 -0700 |
| commit | ef0a3402cccf75b43b1ed854f57fb11b54a1241a (patch) | |
| tree | 671b865c1967e12003fd2716e26b1b69037f683b /include/dt-bindings | |
| parent | 37177faefc22209deb547579d4c2dfd5d6bf30ab (diff) | |
| parent | 24ce10e142e7b063c4ae4437dd3b290fbfafe052 (diff) | |
Merge tag 'at91-dt' of git://github.com/at91linux/linux-at91 into next/dt
From Nicolas Ferre:
Again some nice DT updates for AT91:
- DMA binding update with one patch shared with slave-dma tree
- more SPI DT activation
- enable the USB gadget HS for DT platforms
* tag 'at91-dt' of git://github.com/at91linux/linux-at91:
ARM: at91: sam9m10g45ek add udc DT support
ARM: at91: sam9g45 add udc DT support
ARM: at91: sam9x5ek add udc DT support
ARM: at91: sam9x5 add udc DT support
ARM: at91: dt: at91sam9x5: add SPI DMA client infos
ARM: at91: dt: switch DMA DT bindings to pre-processor
ARM: at91: dt: add header to define at_hdmac configuration
Diffstat (limited to 'include/dt-bindings')
| -rw-r--r-- | include/dt-bindings/dma/at91.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/include/dt-bindings/dma/at91.h b/include/dt-bindings/dma/at91.h new file mode 100644 index 00000000000..e835037a77b --- /dev/null +++ b/include/dt-bindings/dma/at91.h @@ -0,0 +1,27 @@ +/* + * This header provides macros for at91 dma bindings. + * + * Copyright (C) 2013 Ludovic Desroches <ludovic.desroches@atmel.com> + * + * GPLv2 only + */ + +#ifndef __DT_BINDINGS_AT91_DMA_H__ +#define __DT_BINDINGS_AT91_DMA_H__ + +/* + * Source and/or destination peripheral ID + */ +#define AT91_DMA_CFG_PER_ID_MASK (0xff) +#define AT91_DMA_CFG_PER_ID(id) (id & AT91_DMA_CFG_PER_ID_MASK) + +/* + * FIFO configuration: it defines when a request is serviced. + */ +#define AT91_DMA_CFG_FIFOCFG_OFFSET (8) +#define AT91_DMA_CFG_FIFOCFG_MASK (0xf << AT91_DMA_CFG_FIFOCFG_OFFSET) +#define AT91_DMA_CFG_FIFOCFG_HALF (0x0 << AT91_DMA_CFG_FIFOCFG_OFFSET) /* half FIFO (default behavior) */ +#define AT91_DMA_CFG_FIFOCFG_ALAP (0x1 << AT91_DMA_CFG_FIFOCFG_OFFSET) /* largest defined AHB burst */ +#define AT91_DMA_CFG_FIFOCFG_ASAP (0x2 << AT91_DMA_CFG_FIFOCFG_OFFSET) /* single AHB access */ + +#endif /* __DT_BINDINGS_AT91_DMA_H__ */ |