arm64: dts: renesas: r8a779g0: Add DMA support

Add device nodes for the Direct Memory Access Controllers for System
(SYS-DMAC) on the Renesas R-Car V4H (R8A779G0) SoC.

Link all DMA consumers to the corresponding DMA controller channels.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/1ea45b51f897a11d9477be4ac54fdb0efcc624e1.1664204771.git.geert+renesas@glider.be

diff --git a/arch/arm64/boot/dts/renesas/r8a779g0.dtsi b/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
index d70f060..632b9f4 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779g0.dtsi
@@ -241,6 +241,9 @@
                        reg = <0 0xe6500000 0 0x40>;
                        interrupts = <GIC_SPI 610 IRQ_TYPE_LEVEL_HIGH>;
                        clocks = <&cpg CPG_MOD 518>;
+                       dmas = <&dmac0 0x91>, <&dmac0 0x90>,
+                              <&dmac1 0x91>, <&dmac1 0x90>;
+                       dma-names = "tx", "rx", "tx", "rx";
                        power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
                        resets = <&cpg 518>;
                        i2c-scl-internal-delay-ns = <110>;
@@ -255,6 +258,9 @@
                        reg = <0 0xe6508000 0 0x40>;
                        interrupts = <GIC_SPI 611 IRQ_TYPE_LEVEL_HIGH>;
                        clocks = <&cpg CPG_MOD 519>;
+                       dmas = <&dmac0 0x93>, <&dmac0 0x92>,
+                              <&dmac1 0x93>, <&dmac1 0x92>;
+                       dma-names = "tx", "rx", "tx", "rx";
                        power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
                        resets = <&cpg 519>;
                        i2c-scl-internal-delay-ns = <110>;
@@ -269,6 +275,9 @@
                        reg = <0 0xe6510000 0 0x40>;
                        interrupts = <GIC_SPI 612 IRQ_TYPE_LEVEL_HIGH>;
                        clocks = <&cpg CPG_MOD 520>;
+                       dmas = <&dmac0 0x95>, <&dmac0 0x94>,
+                              <&dmac1 0x95>, <&dmac1 0x94>;
+                       dma-names = "tx", "rx", "tx", "rx";
                        power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
                        resets = <&cpg 520>;
                        i2c-scl-internal-delay-ns = <110>;
@@ -283,6 +292,9 @@
                        reg = <0 0xe66d0000 0 0x40>;
                        interrupts = <GIC_SPI 613 IRQ_TYPE_LEVEL_HIGH>;
                        clocks = <&cpg CPG_MOD 521>;
+                       dmas = <&dmac0 0x97>, <&dmac0 0x96>,
+                              <&dmac1 0x97>, <&dmac1 0x96>;
+                       dma-names = "tx", "rx", "tx", "rx";
                        power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
                        resets = <&cpg 521>;
                        i2c-scl-internal-delay-ns = <110>;
@@ -297,6 +309,9 @@
                        reg = <0 0xe66d8000 0 0x40>;
                        interrupts = <GIC_SPI 614 IRQ_TYPE_LEVEL_HIGH>;
                        clocks = <&cpg CPG_MOD 522>;
+                       dma-names = "tx", "rx", "tx", "rx";
+                       dmas = <&dmac0 0x99>, <&dmac0 0x98>,
+                              <&dmac1 0x99>, <&dmac1 0x98>;
                        power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
                        resets = <&cpg 522>;
                        i2c-scl-internal-delay-ns = <110>;
@@ -311,6 +326,9 @@
                        reg = <0 0xe66e0000 0 0x40>;
                        interrupts = <GIC_SPI 615 IRQ_TYPE_LEVEL_HIGH>;
                        clocks = <&cpg CPG_MOD 523>;
+                       dmas = <&dmac0 0x9b>, <&dmac0 0x9a>,
+                              <&dmac1 0x9b>, <&dmac1 0x9a>;
+                       dma-names = "tx", "rx", "tx", "rx";
                        power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
                        resets = <&cpg 523>;
                        i2c-scl-internal-delay-ns = <110>;
@@ -329,6 +347,9 @@
                                 <&cpg CPG_CORE R8A779G0_CLK_S0D3_PER>,
                                 <&scif_clk>;
                        clock-names = "fck", "brg_int", "scif_clk";
+                       dmas = <&dmac0 0x31>, <&dmac0 0x30>,
+                              <&dmac1 0x31>, <&dmac1 0x30>;
+                       dma-names = "tx", "rx", "tx", "rx";
                        power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
                        resets = <&cpg 514>;
                        status = "disabled";
@@ -475,6 +496,76 @@
                        status = "disabled";
                };
 
+               dmac0: dma-controller@e7350000 {
+                       compatible = "renesas,dmac-r8a779g0",
+                                    "renesas,rcar-gen4-dmac";
+                       reg = <0 0xe7350000 0 0x1000>,
+                             <0 0xe7300000 0 0x10000>;
+                       interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH>;
+                       interrupt-names = "error",
+                                         "ch0", "ch1", "ch2", "ch3", "ch4",
+                                         "ch5", "ch6", "ch7", "ch8", "ch9",
+                                         "ch10", "ch11", "ch12", "ch13",
+                                         "ch14", "ch15";
+                       clocks = <&cpg CPG_MOD 709>;
+                       clock-names = "fck";
+                       power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
+                       resets = <&cpg 709>;
+                       #dma-cells = <1>;
+                       dma-channels = <16>;
+               };
+
+               dmac1: dma-controller@e7351000 {
+                       compatible = "renesas,dmac-r8a779g0",
+                                    "renesas,rcar-gen4-dmac";
+                       reg = <0 0xe7351000 0 0x1000>,
+                             <0 0xe7310000 0 0x10000>;
+                       interrupts = <GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 109 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 110 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 111 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 112 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 113 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>,
+                                    <GIC_SPI 115 IRQ_TYPE_LEVEL_HIGH>;
+                       interrupt-names = "error",
+                                         "ch0", "ch1", "ch2", "ch3", "ch4",
+                                         "ch5", "ch6", "ch7", "ch8", "ch9",
+                                         "ch10", "ch11", "ch12", "ch13",
+                                         "ch14", "ch15";
+                       clocks = <&cpg CPG_MOD 710>;
+                       clock-names = "fck";
+                       power-domains = <&sysc R8A779G0_PD_ALWAYS_ON>;
+                       resets = <&cpg 710>;
+                       #dma-cells = <1>;
+                       dma-channels = <16>;
+               };
+
                gic: interrupt-controller@f1000000 {
                        compatible = "arm,gic-v3";
                        #interrupt-cells = <3>;