arm64: dts: renesas: r8a77970: add I2C support

Define the generic R8A77970 parts of the I2C[0-4] device node.

Based on the original (and large) patch by Daisuke Matsushita
<daisuke.matsushita.ns@hitachi.com>.

Signed-off-by: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

1 files changed, 93 insertions, 0 deletions

diff --git a/arch/arm64/boot/dts/renesas/r8a77970.dtsi b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
index 13ff4305416e..e44281cc1047 100644
--- a/arch/arm64/boot/dts/renesas/r8a77970.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a77970.dtsi
@@ -19,6 +19,14 @@
         #address-cells = <2>;
         #size-cells = <2>;
 
+        aliases {
+                i2c0 = &i2c0;
+                i2c1 = &i2c1;
+                i2c2 = &i2c2;
+                i2c3 = &i2c3;
+                i2c4 = &i2c4;
+        };
+
         psci {
                 compatible = "arm,psci-1.0", "arm,psci-0.2";
                 method = "smc";
@@ -338,6 +346,91 @@
                                <&ipmmu_ds1 22>, <&ipmmu_ds1 23>;
                 };
 
+                i2c0: i2c@e6500000 {
+                        compatible = "renesas,i2c-r8a77970",
+                                     "renesas,rcar-gen3-i2c";
+                        reg = <0 0xe6500000 0 0x40>;
+                        interrupts = <GIC_SPI 287 IRQ_TYPE_LEVEL_HIGH>;
+                        clocks = <&cpg CPG_MOD 931>;
+                        power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
+                        resets = <&cpg 931>;
+                        dmas = <&dmac1 0x91>, <&dmac1 0x90>,
+                               <&dmac2 0x91>, <&dmac2 0x90>;
+                        dma-names = "tx", "rx", "tx", "rx";
+                        i2c-scl-internal-delay-ns = <6>;
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        status = "disabled";
+                };
+
+                i2c1: i2c@e6508000 {
+                        compatible = "renesas,i2c-r8a77970",
+                                     "renesas,rcar-gen3-i2c";
+                        reg = <0 0xe6508000 0 0x40>;
+                        interrupts = <GIC_SPI 288 IRQ_TYPE_LEVEL_HIGH>;
+                        clocks = <&cpg CPG_MOD 930>;
+                        power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
+                        resets = <&cpg 930>;
+                        dmas = <&dmac1 0x93>, <&dmac1 0x92>,
+                               <&dmac2 0x93>, <&dmac2 0x92>;
+                        dma-names = "tx", "rx", "tx", "rx";
+                        i2c-scl-internal-delay-ns = <6>;
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        status = "disabled";
+                };
+
+                i2c2: i2c@e6510000 {
+                        compatible = "renesas,i2c-r8a77970",
+                                     "renesas,rcar-gen3-i2c";
+                        reg = <0 0xe6510000 0 0x40>;
+                        interrupts = <GIC_SPI 286 IRQ_TYPE_LEVEL_HIGH>;
+                        clocks = <&cpg CPG_MOD 929>;
+                        power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
+                        resets = <&cpg 929>;
+                        dmas = <&dmac1 0x95>, <&dmac1 0x94>,
+                               <&dmac2 0x95>, <&dmac2 0x94>;
+                        dma-names = "tx", "rx", "tx", "rx";
+                        i2c-scl-internal-delay-ns = <6>;
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        status = "disabled";
+                };
+
+                i2c3: i2c@e66d0000 {
+                        compatible = "renesas,i2c-r8a77970",
+                                     "renesas,rcar-gen3-i2c";
+                        reg = <0 0xe66d0000 0 0x40>;
+                        interrupts = <GIC_SPI 290 IRQ_TYPE_LEVEL_HIGH>;
+                        clocks = <&cpg CPG_MOD 928>;
+                        power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
+                        resets = <&cpg 928>;
+                        dmas = <&dmac1 0x97>, <&dmac1 0x96>,
+                               <&dmac2 0x97>, <&dmac2 0x96>;
+                        dma-names = "tx", "rx", "tx", "rx";
+                        i2c-scl-internal-delay-ns = <6>;
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        status = "disabled";
+                };
+
+                i2c4: i2c@e66d8000 {
+                        compatible = "renesas,i2c-r8a77970",
+                                     "renesas,rcar-gen3-i2c";
+                        reg = <0 0xe66d8000 0 0x40>;
+                        interrupts = <GIC_SPI 19 IRQ_TYPE_LEVEL_HIGH>;
+                        clocks = <&cpg CPG_MOD 927>;
+                        power-domains = <&sysc R8A77970_PD_ALWAYS_ON>;
+                        resets = <&cpg 927>;
+                        dmas = <&dmac1 0x99>, <&dmac1 0x98>,
+                               <&dmac2 0x99>, <&dmac2 0x98>;
+                        dma-names = "tx", "rx", "tx", "rx";
+                        i2c-scl-internal-delay-ns = <6>;
+                        #address-cells = <1>;
+                        #size-cells = <0>;
+                        status = "disabled";
+                };
+
                 hscif0: serial@e6540000 {
                         compatible = "renesas,hscif-r8a77970",
                                      "renesas,rcar-gen3-hscif",