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arm64: dts: renesas: spider-cpu: Add I2C4 and EEPROMs

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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@glider.be>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Link: https://lore.kernel.org/r/6d8917e49f83b6a932970ca169100eb086d11f16.1643898884.git.geert+renesas@glider.be
This commit is contained in:
Geert Uytterhoeven
2022-02-03 16:26:48 +01:00
parent bd04437341
commit b74d5d65af
2 changed files with 29 additions and 0 deletions
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20
arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi
View File

@@ -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";

9
arch/arm64/boot/dts/renesas/r8a779f0-spider.dts
View File

@@ -20,3 +20,12 @@ chosen {
stdout-path = "serial0:115200n8";
};
};
&i2c4 {
eeprom@51 {
compatible = "rohm,br24g01", "atmel,24c01";
label = "breakout-board";
reg = <0x51>;
pagesize = <8>;
};
};