Add device nodes for the Direct Memory Access Controllers for System
(SYS-DMAC) on the Renesas R-Car V4M (R8A779H0) SoC.
Link all DMA consumers to the corresponding DMA controller channels.
Based on patches in the BSP by Thanh Le and Minh Le.
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
To be queued in renesas-devel for v6.9.
HSCIF0 DMA tested by removing the uart_console() check from
sci_request_dma().
I2C0 DMA tested by removing the I2C_M_DMA_SAFE check from rcar_i2c_dma()
(the AT24 EEPROM driver uses regmap, thus can't set I2C_M_DMA_SAFE).
Changes compared to the BSP:
- Mix and match multiple patches,
- Add missing "renesas,rcar-gen4-dmac" compatible fallbacks,
- Add HSCIF0 DMA.
---
arch/arm64/boot/dts/renesas/r8a779h0.dtsi | 75 +++++++++++++++++++++++
1 file changed, 75 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a779h0.dtsi b/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
index d50ed1989ef52da7..46c586f4e326959f 100644
--- a/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779h0.dtsi
@@ -326,6 +326,9 @@ i2c0: i2c@e6500000 {
clocks = <&cpg CPG_MOD 518>;
power-domains = <&sysc R8A779H0_PD_ALWAYS_ON>;
resets = <&cpg 518>;
+ dmas = <&dmac1 0x91>, <&dmac1 0x90>,
+ <&dmac2 0x91>, <&dmac2 0x90>;
+ dma-names = "tx", "rx", "tx", "rx";
i2c-scl-internal-delay-ns = <110>;
#address-cells = <1>;
#size-cells = <0>;
@@ -340,6 +343,9 @@ i2c1: i2c@e6508000 {
clocks = <&cpg CPG_MOD 519>;
power-domains = <&sysc R8A779H0_PD_ALWAYS_ON>;
resets = <&cpg 519>;
+ dmas = <&dmac1 0x93>, <&dmac1 0x92>,
+ <&dmac2 0x93>, <&dmac2 0x92>;
+ dma-names = "tx", "rx", "tx", "rx";
i2c-scl-internal-delay-ns = <110>;
#address-cells = <1>;
#size-cells = <0>;
@@ -354,6 +360,9 @@ i2c2: i2c@e6510000 {
clocks = <&cpg CPG_MOD 520>;
power-domains = <&sysc R8A779H0_PD_ALWAYS_ON>;
resets = <&cpg 520>;
+ dmas = <&dmac1 0x95>, <&dmac1 0x94>,
+ <&dmac2 0x95>, <&dmac2 0x94>;
+ dma-names = "tx", "rx", "tx", "rx";
i2c-scl-internal-delay-ns = <110>;
#address-cells = <1>;
#size-cells = <0>;
@@ -368,6 +377,9 @@ i2c3: i2c@e66d0000 {
clocks = <&cpg CPG_MOD 521>;
power-domains = <&sysc R8A779H0_PD_ALWAYS_ON>;
resets = <&cpg 521>;
+ dmas = <&dmac1 0x97>, <&dmac1 0x96>,
+ <&dmac2 0x97>, <&dmac2 0x96>;
+ dma-names = "tx", "rx", "tx", "rx";
i2c-scl-internal-delay-ns = <110>;
#address-cells = <1>;
#size-cells = <0>;
@@ -385,6 +397,9 @@ hscif0: serial@e6540000 {
clock-names = "fck", "brg_int", "scif_clk";
power-domains = <&sysc R8A779H0_PD_ALWAYS_ON>;
resets = <&cpg 514>;
+ dmas = <&dmac1 0x31>, <&dmac1 0x30>,
+ <&dmac2 0x31>, <&dmac2 0x30>;
+ dma-names = "tx", "rx", "tx", "rx";
status = "disabled";
};
@@ -532,6 +547,66 @@ avb2: ethernet@e6820000 {
status = "disabled";
};
+ dmac1: dma-controller@e7350000 {
+ compatible = "renesas,dmac-r8a779h0",
+ "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 R8A779H0_PD_ALWAYS_ON>;
+ resets = <&cpg 709>;
+ #dma-cells = <1>;
+ dma-channels = <16>;
+ };
+
+ dmac2: dma-controller@e7351000 {
+ compatible = "renesas,dmac-r8a779h0",
+ "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>;
+ interrupt-names = "error",
+ "ch0", "ch1", "ch2", "ch3", "ch4",
+ "ch5", "ch6", "ch7";
+ clocks = <&cpg CPG_MOD 710>;
+ clock-names = "fck";
+ power-domains = <&sysc R8A779H0_PD_ALWAYS_ON>;
+ resets = <&cpg 710>;
+ #dma-cells = <1>;
+ dma-channels = <8>;
+ };
+
mmc0: mmc@ee140000 {
compatible = "renesas,sdhi-r8a779h0",
"renesas,rcar-gen4-sdhi";
--
2.34.1
