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 000000000000..e835037a77b4
--- /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__ */