arm64: dts: renesas: gray-hawk-single: Add I2C0 and EEPROMs

Enable the I2C0 bus on the Gray Hawk Single board, and describe the I2C
EEPROMs present.

Based on patches for Gray Hawk in the BSP by Hai Pham.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/960595394a274b675f1ec9ec1c324e4cc1ac1f77.1706796660.git.geert+renesas@glider.be

diff --git a/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts b/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
index e68cd962f908330e9ff11d6f4da9bf27954e23e1..5a7e1bea9f6601b24c0966298309f85f6fdc76b2 100644 (file)
--- a/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
+++ b/arch/arm64/boot/dts/renesas/r8a779h0-gray-hawk-single.dts
@@ -50,6 +50,42 @@
        status = "okay";
 };
 
+&i2c0 {
+       pinctrl-0 = <&i2c0_pins>;
+       pinctrl-names = "default";
+
+       status = "okay";
+       clock-frequency = <400000>;
+
+       eeprom@50 {
+               compatible = "rohm,br24g01", "atmel,24c01";
+               label = "cpu-board";
+               reg = <0x50>;
+               pagesize = <8>;
+       };
+
+       eeprom@51 {
+               compatible = "rohm,br24g01", "atmel,24c01";
+               label = "breakout-board";
+               reg = <0x51>;
+               pagesize = <8>;
+       };
+
+       eeprom@52 {
+               compatible = "rohm,br24g01", "atmel,24c01";
+               label = "csi-dsi-sub-board-id";
+               reg = <0x52>;
+               pagesize = <8>;
+       };
+
+       eeprom@53 {
+               compatible = "rohm,br24g01", "atmel,24c01";
+               label = "ethernet-sub-board-id";
+               reg = <0x53>;
+               pagesize = <8>;
+       };
+};
+
 &pfc {
        pinctrl-0 = <&scif_clk_pins>;
        pinctrl-names = "default";
@@ -59,6 +95,11 @@
                function = "hscif0";
        };
 
+       i2c0_pins: i2c0 {
+               groups = "i2c0";
+               function = "i2c0";
+       };
+
        scif_clk_pins: scif-clk {
                groups = "scif_clk";
                function = "scif_clk";