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arm64: dts: renesas: white-hawk: Add I2C0 and EEPROMs

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Enable the I2C0 bus on the White Hawk CPU board, and describe the I2C
EEPROMs present on the White Hawk CPU and BreakOut boards.

Based on a larger patch in the BSP by Takeshi Kihara.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/d01cada6f2d3e44dd6cb26cfa8e4ce6382f1fbff.1662715538.git.geert+renesas@glider.be
This commit is contained in:
Geert Uytterhoeven
2022-09-09 11:53:53 +02:00
parent ff77ba0514
commit 77643815b0
2 changed files with 29 additions and 0 deletions
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20
arch/arm64/boot/dts/renesas/r8a779g0-white-hawk-cpu.dtsi
View File

@@ -40,6 +40,21 @@ &hscif0 {
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>;
};
};
&pfc {
pinctrl-0 = <&scif_clk_pins>;
pinctrl-names = "default";
@@ -49,6 +64,11 @@ hscif0_pins: hscif0 {
function = "hscif0";
};
i2c0_pins: i2c0 {
groups = "i2c0";
function = "i2c0";
};
scif_clk_pins: scif_clk {
groups = "scif_clk";
function = "scif_clk";

9
arch/arm64/boot/dts/renesas/r8a779g0-white-hawk.dts
View File

@@ -20,3 +20,12 @@ chosen {
stdout-path = "serial0:921600n8";
};
};
&i2c0 {
eeprom@51 {
compatible = "rohm,br24g01", "atmel,24c01";
label = "breakout-board";
reg = <0x51>;
pagesize = <8>;
};
};