diff mbox series

[3/5] arm64: dts: renesas: Add I2C to R8A779A0

Message ID 20201223172505.34736-4-wsa+renesas@sang-engineering.com
State New
Headers show
Series v3u: enable I2C0-6 | expand

Commit Message

Wolfram Sang Dec. 23, 2020, 5:25 p.m. UTC 
From: Koji Matsuoka <koji.matsuoka.xm@renesas.com>

Add I2C devicetree description to V3U

Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com>
[wsa: rebased and double checked]
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---
 arch/arm64/boot/dts/renesas/r8a779a0.dtsi | 122 ++++++++++++++++++++++
 1 file changed, 122 insertions(+)

Comments

Geert Uytterhoeven Jan. 5, 2021, 10:49 a.m. UTC | #1 
Hi Wolfram,

On Wed, Dec 23, 2020 at 6:25 PM Wolfram Sang
<wsa+renesas@sang-engineering.com> wrote:
> From: Koji Matsuoka <koji.matsuoka.xm@renesas.com>

>

> Add I2C devicetree description to V3U

>

> Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com>

> [wsa: rebased and double checked]

> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>


Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>


> --- a/arch/arm64/boot/dts/renesas/r8a779a0.dtsi

> +++ b/arch/arm64/boot/dts/renesas/r8a779a0.dtsi

> @@ -14,6 +14,16 @@ / {

>         #address-cells = <2>;

>         #size-cells = <2>;

>

> +       aliases {

> +               i2c0 = &i2c0;

> +               i2c1 = &i2c1;

> +               i2c2 = &i2c2;

> +               i2c3 = &i2c3;

> +               i2c4 = &i2c4;

> +               i2c5 = &i2c5;

> +               i2c6 = &i2c6;

> +       };


Do we need the i2c aliases? ;-)

> @@ -115,6 +125,118 @@ sysc: system-controller@e6180000 {

>                         #power-domain-cells = <1>;

>                 };

>

> +               i2c0: i2c@e6500000 {

> +                       compatible = "renesas,i2c-r8a779a0",

> +                                    "renesas,rcar-gen3-i2c";

> +                       reg = <0 0xe6500000 0 0x40>;

> +                       interrupts = <GIC_SPI 238 IRQ_TYPE_LEVEL_HIGH>;

> +                       clocks = <&cpg CPG_MOD 518>;

> +                       power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>;

> +                       resets = <&cpg 518>;

> +                       dmas = <&dmac1 0x91>, <&dmac1 0x90>;

> +                       dma-names = "tx", "rx";


Might be wise to leave out the DMA properties until we have verified that
DMA works?

> +                       i2c-scl-internal-delay-ns = <110>;

> +                       #address-cells = <1>;

> +                       #size-cells = <0>;

> +                       status = "disabled";

> +               };


Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds
diff mbox series

Patch

diff --git a/arch/arm64/boot/dts/renesas/r8a779a0.dtsi b/arch/arm64/boot/dts/renesas/r8a779a0.dtsi
index 742c04f55f74..177c4e8acc52 100644
--- a/arch/arm64/boot/dts/renesas/r8a779a0.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779a0.dtsi
@@ -14,6 +14,16 @@  / {
 	#address-cells = <2>;
 	#size-cells = <2>;
 
+	aliases {
+		i2c0 = &i2c0;
+		i2c1 = &i2c1;
+		i2c2 = &i2c2;
+		i2c3 = &i2c3;
+		i2c4 = &i2c4;
+		i2c5 = &i2c5;
+		i2c6 = &i2c6;
+	};
+
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
@@ -115,6 +125,118 @@  sysc: system-controller@e6180000 {
 			#power-domain-cells = <1>;
 		};
 
+		i2c0: i2c@e6500000 {
+			compatible = "renesas,i2c-r8a779a0",
+				     "renesas,rcar-gen3-i2c";
+			reg = <0 0xe6500000 0 0x40>;
+			interrupts = <GIC_SPI 238 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 518>;
+			power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>;
+			resets = <&cpg 518>;
+			dmas = <&dmac1 0x91>, <&dmac1 0x90>;
+			dma-names = "tx", "rx";
+			i2c-scl-internal-delay-ns = <110>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		i2c1: i2c@e6508000 {
+			compatible = "renesas,i2c-r8a779a0",
+				     "renesas,rcar-gen3-i2c";
+			reg = <0 0xe6508000 0 0x40>;
+			interrupts = <GIC_SPI 239 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 519>;
+			power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>;
+			resets = <&cpg 519>;
+			dmas = <&dmac1 0x93>, <&dmac1 0x92>;
+			dma-names = "tx", "rx";
+			i2c-scl-internal-delay-ns = <110>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		i2c2: i2c@e6510000 {
+			compatible = "renesas,i2c-r8a779a0",
+				     "renesas,rcar-gen3-i2c";
+			reg = <0 0xe6510000 0 0x40>;
+			interrupts = <GIC_SPI 240 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 520>;
+			power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>;
+			resets = <&cpg 520>;
+			dmas = <&dmac1 0x95>, <&dmac1 0x94>;
+			dma-names = "tx", "rx";
+			i2c-scl-internal-delay-ns = <110>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		i2c3: i2c@e66d0000 {
+			compatible = "renesas,i2c-r8a779a0",
+				     "renesas,rcar-gen3-i2c";
+			reg = <0 0xe66d0000 0 0x40>;
+			interrupts = <GIC_SPI 241 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 521>;
+			power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>;
+			resets = <&cpg 521>;
+			dmas = <&dmac1 0x97>, <&dmac1 0x96>;
+			dma-names = "tx", "rx";
+			i2c-scl-internal-delay-ns = <110>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		i2c4: i2c@e66d8000 {
+			compatible = "renesas,i2c-r8a779a0",
+				     "renesas,rcar-gen3-i2c";
+			reg = <0 0xe66d8000 0 0x40>;
+			interrupts = <GIC_SPI 242 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 522>;
+			power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>;
+			resets = <&cpg 522>;
+			dmas = <&dmac1 0x99>, <&dmac1 0x98>;
+			dma-names = "tx", "rx";
+			i2c-scl-internal-delay-ns = <110>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		i2c5: i2c@e66e0000 {
+			compatible = "renesas,i2c-r8a779a0",
+				     "renesas,rcar-gen3-i2c";
+			reg = <0 0xe66e0000 0 0x40>;
+			interrupts = <GIC_SPI 243 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 523>;
+			power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>;
+			resets = <&cpg 523>;
+			dmas = <&dmac1 0x9b>, <&dmac1 0x9a>;
+			dma-names = "tx", "rx";
+			i2c-scl-internal-delay-ns = <110>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		i2c6: i2c@e66e8000 {
+			compatible = "renesas,i2c-r8a779a0",
+				     "renesas,rcar-gen3-i2c";
+			reg = <0 0xe66e8000 0 0x40>;
+			interrupts = <GIC_SPI 244 IRQ_TYPE_LEVEL_HIGH>;
+			clocks = <&cpg CPG_MOD 524>;
+			power-domains = <&sysc R8A779A0_PD_ALWAYS_ON>;
+			resets = <&cpg 524>;
+			dmas = <&dmac1 0x9d>, <&dmac1 0x9c>;
+			dma-names = "tx", "rx";
+			i2c-scl-internal-delay-ns = <110>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
 		scif0: serial@e6e60000 {
 			compatible = "renesas,scif-r8a779a0",
 				     "renesas,rcar-gen3-scif", "renesas,scif";