diff options
| author | Sascha Hauer <s.hauer@pengutronix.de> | 2014-04-25 11:22:32 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2014-04-28 09:08:46 +0200 |
| commit | 00ce25c6dcdae5582ae4be37147ab33678adc995 (patch) | |
| tree | 41c93102ae304a61738c31353e3cb5336ef0b297 /dts/include/dt-bindings/dma | |
| parent | 0af79fbb6779921d3f1962773adb7fb57d3c89d4 (diff) | |
| download | barebox-00ce25c6dcdae5582ae4be37147ab33678adc995.tar.gz barebox-00ce25c6dcdae5582ae4be37147ab33678adc995.tar.xz | |
Add devicetree source files as of Linux-3.15-rc2
This adds the Linux dts files to barebox. The dts files are
generated from Ian Campbells device-tree-rebasing.git:
git://xenbits.xen.org/people/ianc/device-tree-rebasing.git
The dts are found in dts/ in the barebox repository and
will be updated from upstream regularly, probably for each upstream
-rc.
To keep the synchronization with upstream easy no changes to
the original files are allowed under dts/. Instead changes to
upstream dts files will be done using overlays in arch/$ARCH/dts/.
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/include/dt-bindings/dma')
| -rw-r--r-- | dts/include/dt-bindings/dma/at91.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/dts/include/dt-bindings/dma/at91.h b/dts/include/dt-bindings/dma/at91.h new file mode 100644 index 0000000000..e835037a77 --- /dev/null +++ b/dts/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__ */ |