From: Geert Uytterhoeven <geert+renesas@glider.be>
Date: Thu, 1 Feb 2024 14:14:34 +0000 (+0100)
Subject: arm64: dts: renesas: gray-hawk-single: Add I2C0 and EEPROMs
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=74a9d17af7db7fea0c041c536d2dc80ddc7e95ee;p=users%2Fjedix%2Flinux-maple.git

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 e68cd962f9083..5a7e1bea9f660 100644
--- 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";