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authorOlof Johansson <olof@lixom.net>2013-06-14 18:51:21 -0700
committerOlof Johansson <olof@lixom.net>2013-06-14 18:51:21 -0700
commitef0a3402cccf75b43b1ed854f57fb11b54a1241a (patch)
tree671b865c1967e12003fd2716e26b1b69037f683b /include/dt-bindings
parent37177faefc22209deb547579d4c2dfd5d6bf30ab (diff)
parent24ce10e142e7b063c4ae4437dd3b290fbfafe052 (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.h27
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__ */