ARM: dts: dra7: Enable eDMA

DRA7 family has eDMA available along with the sDMA and in some cases it is
better suited for servicing peripherals.

Add the needed nodes for eDMA to be usable:
edma-tpcc, edma-tptc0/1 and the edma-xbar.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index 035f9be26337f6044134bce4d94e7c8b46556ed2..1d54d311c46a9aee971a09f8e3e43a2fb84836bb 100644 (file)
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -170,6 +170,15 @@
                                        ti,dma-safe-map = <0>;
                                        dma-masters = <&sdma>;
                                };
+
+                               edma_xbar: dma-router@c78 {
+                                       compatible = "ti,dra7-dma-crossbar";
+                                       reg = <0xc78 0x7c>;
+                                       #dma-cells = <2>;
+                                       dma-requests = <204>;
+                                       ti,dma-safe-map = <0>;
+                                       dma-masters = <&edma>;
+                               };
                        };
 
                        cm_core_aon: cm_core_aon@5000 {
@@ -324,6 +333,45 @@
                        dma-requests = <127>;
                };
 
+               edma: edma@43300000 {
+                       compatible = "ti,edma3-tpcc";
+                       ti,hwmods = "tpcc";
+                       reg = <0x43300000 0x100000>;
+                       reg-names = "edma3_cc";
+                       interrupts = <GIC_SPI 361 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 360 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 359 IRQ_TYPE_LEVEL_HIGH>;
+                       interrupt-names = "edma3_ccint", "emda3_mperr",
+                                         "edma3_ccerrint";
+                       dma-requests = <64>;
+                       #dma-cells = <2>;
+
+                       ti,tptcs = <&edma_tptc0 7>, <&edma_tptc1 0>;
+
+                       /*
+                        * memcpy is disabled, can be enabled with:
+                        * ti,edma-memcpy-channels = <20 21>;
+                        * for example. Note that these channels need to be
+                        * masked in the xbar as well.
+                        */
+               };
+
+               edma_tptc0: tptc@43400000 {
+                       compatible = "ti,edma3-tptc";
+                       ti,hwmods = "tptc0";
+                       reg =   <0x43400000 0x100000>;
+                       interrupts = <GIC_SPI 370 IRQ_TYPE_LEVEL_HIGH>;
+                       interrupt-names = "edma3_tcerrint";
+               };
+
+               edma_tptc1: tptc@43500000 {
+                       compatible = "ti,edma3-tptc";
+                       ti,hwmods = "tptc1";
+                       reg =   <0x43500000 0x100000>;
+                       interrupts = <GIC_SPI 371 IRQ_TYPE_LEVEL_HIGH>;
+                       interrupt-names = "edma3_tcerrint";
+               };
+
                gpio1: gpio@4ae10000 {
                        compatible = "ti,omap4-gpio";
                        reg = <0x4ae10000 0x200>;