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ARM: dts: renesas: r9a06g032-rzn1d400-db: Describe I2C bus

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Schematics mention a 24cs64 on the bus, but I definitely have only a
24c64. So, it is only mentioned as a comment.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250328153134.2881-9-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Wolfram Sang 2025-03-28 16:31:35 +01:00 committed by Geert Uytterhoeven
parent 182f0dc5f5
commit 0c704ebc37
1 changed files with 44 additions and 0 deletions
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44
arch/arm/boot/dts/renesas/r9a06g032-rzn1d400-db.dts
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@ -57,6 +57,44 @@ fixed-link {
};
};
&i2c2 {
pinctrl-0 = <&pins_i2c2>;
pinctrl-names = "default";
status = "okay";
clock-frequency = <400000>;
pca9698: gpio@20 {
compatible = "nxp,pca9698";
reg = <0x20>;
gpio-controller;
#gpio-cells = <2>;
/* configure the analog switch to let i2c2 access the eeprom */
max4662-in1-hog {
gpio-hog;
gpios = <16 0>;
output-high;
};
max4662-in2-hog {
gpio-hog;
gpios = <17 0>;
output-low;
};
max4662-in3-hog {
gpio-hog;
gpios = <18 0>;
output-low;
};
};
/* Some revisions may have a 24cs64 at address 0x58 */
eeprom@50 {
compatible = "atmel,24c64";
pagesize = <32>;
reg = <0x50>;
};
};
&mii_conv4 {
renesas,miic-input = <MIIC_SWITCH_PORTB>;
status = "okay";
@ -114,6 +152,12 @@ pins_eth4: pins_eth4 {
bias-disable;
};
pins_i2c2: pins_i2c2 {
pinmux = <RZN1_PINMUX(115, RZN1_FUNC_I2C)>,
<RZN1_PINMUX(116, RZN1_FUNC_I2C)>;
drive-strength = <12>;
};
pins_mdio1: pins_mdio1 {
pinmux = <RZN1_PINMUX(152, RZN1_FUNC_MDIO1_SWITCH)>,
<RZN1_PINMUX(153, RZN1_FUNC_MDIO1_SWITCH)>;