dma: ti: add driver to K3 UDMA
The UDMA-P is intended to perform similar (but significantly upgraded) functions
as the packet-oriented DMA used on previous SoC devices. The UDMA-P module
supports the transmission and reception of various packet types.
The UDMA-P also supports acting as both a UTC and UDMA-C for its internal
channels. Channels in the UDMA-P can be configured to be either Packet-Based or
Third-Party channels on a channel by channel basis.
The initial driver supports:
- MEM_TO_MEM (TR mode)
- DEV_TO_MEM (Packet mode)
- MEM_TO_DEV (Packet mode)
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
Signed-off-by: Vignesh R <vigneshr@ti.com>
diff --git a/include/dt-bindings/dma/k3-udma.h b/include/dt-bindings/dma/k3-udma.h
new file mode 100644
index 0000000..670e123
--- /dev/null
+++ b/include/dt-bindings/dma/k3-udma.h
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com
+ */
+
+#ifndef __DT_TI_UDMA_H
+#define __DT_TI_UDMA_H
+
+#define UDMA_TR_MODE 0
+#define UDMA_PKT_MODE 1
+
+#define UDMA_DIR_TX 0
+#define UDMA_DIR_RX 1
+
+#define PSIL_STATIC_TR_NONE 0
+#define PSIL_STATIC_TR_XY 1
+#define PSIL_STATIC_TR_MCAN 2
+
+#define UDMA_PDMA_TR_XY(id) \
+ ti,psil-config##id { \
+ linux,udma-mode = <UDMA_TR_MODE>; \
+ statictr-type = <PSIL_STATIC_TR_XY>; \
+ }
+
+#define UDMA_PDMA_PKT_XY(id) \
+ ti,psil-config##id { \
+ linux,udma-mode = <UDMA_PKT_MODE>; \
+ statictr-type = <PSIL_STATIC_TR_XY>; \
+ }
+
+#endif /* __DT_TI_UDMA_H */