dmaengine: at_xdmac: creation of the atmel eXtended DMA Controller driver

New atmel DMA controller known as XDMAC, introduced with SAMA5D4
devices.

Signed-off-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/include/dt-bindings/dma/at91.h b/include/dt-bindings/dma/at91.h
index e835037a77b4..ab6cbba45401 100644
--- a/include/dt-bindings/dma/at91.h
+++ b/include/dt-bindings/dma/at91.h
@@ -9,6 +9,8 @@
 #ifndef __DT_BINDINGS_AT91_DMA_H__
 #define __DT_BINDINGS_AT91_DMA_H__
 
+/* ---------- HDMAC ---------- */
+
 /*
  * Source and/or destination peripheral ID
  */
@@ -24,4 +26,27 @@
 #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 */
 
+
+/* ---------- XDMAC ---------- */
+#define AT91_XDMAC_DT_MEM_IF_MASK       (0x1)
+#define AT91_XDMAC_DT_MEM_IF_OFFSET     (13)
+#define AT91_XDMAC_DT_MEM_IF(mem_if)    (((mem_if) & AT91_XDMAC_DT_MEM_IF_MASK) \
+                                        << AT91_XDMAC_DT_MEM_IF_OFFSET)
+#define AT91_XDMAC_DT_GET_MEM_IF(cfg)   (((cfg) >> AT91_XDMAC_DT_MEM_IF_OFFSET) \
+                                        & AT91_XDMAC_DT_MEM_IF_MASK)
+
+#define AT91_XDMAC_DT_PER_IF_MASK       (0x1)
+#define AT91_XDMAC_DT_PER_IF_OFFSET     (14)
+#define AT91_XDMAC_DT_PER_IF(per_if)    (((per_if) & AT91_XDMAC_DT_PER_IF_MASK) \
+                                        << AT91_XDMAC_DT_PER_IF_OFFSET)
+#define AT91_XDMAC_DT_GET_PER_IF(cfg)   (((cfg) >> AT91_XDMAC_DT_PER_IF_OFFSET) \
+                                        & AT91_XDMAC_DT_PER_IF_MASK)
+
+#define AT91_XDMAC_DT_PERID_MASK        (0x7f)
+#define AT91_XDMAC_DT_PERID_OFFSET      (24)
+#define AT91_XDMAC_DT_PERID(perid)      (((perid) & AT91_XDMAC_DT_PERID_MASK) \
+                                        << AT91_XDMAC_DT_PERID_OFFSET)
+#define AT91_XDMAC_DT_GET_PERID(cfg)    (((cfg) >> AT91_XDMAC_DT_PERID_OFFSET) \
+                                        & AT91_XDMAC_DT_PERID_MASK)
+
 #endif /* __DT_BINDINGS_AT91_DMA_H__ */