Enable the I2C4 bus on the Falcon CPU board, and describe the I2C EEPROMs
present on the Spider CPU and BreakOut boards.
Extracted from a larger patch in the BSP by LUU HOAI.
Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx>
---
.../boot/dts/renesas/r8a779f0-spider-cpu.dtsi | 20 +++++++++++++++++++
.../boot/dts/renesas/r8a779f0-spider.dts | 9 +++++++++
2 files changed, 29 insertions(+)
diff --git a/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi b/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi
index 6e07c54148e716d7..41aa8591b3b1b548 100644
--- a/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi
+++ b/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi
@@ -31,10 +31,30 @@ &extalr_clk {
clock-frequency = <32768>;
};
+&i2c4 {
+ pinctrl-0 = <&i2c4_pins>;
+ pinctrl-names = "default";
+
+ status = "okay";
+ clock-frequency = <400000>;
+
+ eeprom@50 {
+ compatible = "rohm,br24g01", "atmel,24c01";
+ label = "cpu-board";
+ reg = <0x50>;
+ pagesize = <8>;
+ };
+};
+
&pfc {
pinctrl-0 = <&scif_clk_pins>;
pinctrl-names = "default";
+ i2c4_pins: i2c4 {
+ groups = "i2c4";
+ function = "i2c4";
+ };
+
scif3_pins: scif3 {
groups = "scif3_data", "scif3_ctrl";
function = "scif3";
diff --git a/arch/arm64/boot/dts/renesas/r8a779f0-spider.dts b/arch/arm64/boot/dts/renesas/r8a779f0-spider.dts
index f286254b41d885d9..78c4730538fdc9d3 100644
--- a/arch/arm64/boot/dts/renesas/r8a779f0-spider.dts
+++ b/arch/arm64/boot/dts/renesas/r8a779f0-spider.dts
@@ -20,3 +20,12 @@ chosen {
stdout-path = "serial0:115200n8";
};
};
+
+&i2c4 {
+ eeprom@51 {
+ compatible = "rohm,br24g01", "atmel,24c01";
+ label = "breakout-board";
+ reg = <0x51>;
+ pagesize = <8>;
+ };
+};
--
2.25.1
