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arm64: dts: renesas: r9a08g046l48-smarc: Enable I2C{2,3} devices

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Enable I2C{2,3} on the RZ/G3L SMARC EVK board.  I2C3 is enabled by
setting SW SYS.2 to the OFF position.

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://patch.msgid.link/20260528070239.33352-3-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Biju Das 2026-05-28 08:02:35 +01:00 committed by Geert Uytterhoeven
parent 662ce0d733
commit 3f9c7afdfa
2 changed files with 33 additions and 0 deletions
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29
arch/arm64/boot/dts/renesas/r9a08g046l48-smarc.dts
View File

@ -11,6 +11,7 @@
#define RZ_BOOT_MODE3 1
#define SW_DPI_EN 0
#define SW_GPIO4 1
#define SW_I3C_EN 0
#define PMOD_GPIO4 0
#define PMOD_GPIO6 0
@ -33,10 +34,28 @@ / {
"renesas,r9a08g046l48", "renesas,r9a08g046";
aliases {
i2c2 = &i2c2;
i2c3 = &i2c3;
serial3 = &scif0;
};
};
&i2c2 {
pinctrl-0 = <&i2c2_pins>;
pinctrl-names = "default";
status = "okay";
};
#if !SW_I3C_EN
&i2c3 {
pinctrl-0 = <&i2c3_pins>;
pinctrl-names = "default";
status = "okay";
};
#endif
&keys {
#if !RZ_BOOT_MODE3 || !SW_GPIO4 || PMOD_GPIO4
/delete-node/ key-1;
@ -52,6 +71,16 @@ &keys {
};
&pinctrl {
i2c2_pins: i2c2 {
pinmux = <RZG3L_PORT_PINMUX(A, 4, 4)>, /* RIIC2_SCL */
<RZG3L_PORT_PINMUX(A, 5, 4)>; /* RIIC2_SDA */
};
i2c3_pins: i2c3 {
pinmux = <RZG3L_PORT_PINMUX(2, 0, 4)>, /* RIIC3_SCL */
<RZG3L_PORT_PINMUX(2, 1, 4)>; /* RIIC3_SDA */
};
scif0_pins: scif0 {
pins = "SCIF0_TXD", "SCIF0_RXD";
power-source = <1800>;

4
arch/arm64/boot/dts/renesas/rzg3l-smarc-som.dtsi
View File

@ -9,6 +9,10 @@
* Please set the below switch position on the SoM and the corresponding macro
* on the board DTS:
*
* Switch position SYS.2, Macro SW_I3C_EN:
* 0 - SMARC_I2C_GP is enabled
* 1 - I3C is enabled
*
* Switch position SYS.5, Macro SW_DPI_EN:
* 0 - Select multiple SMARC signals active
* 1 - Select LCD