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| author | Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> | 2025-08-20 21:06:55 +0100 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2025-09-04 11:39:20 +0200 |
| commit | fc14be9667ee06301c3fff578357c8d78749bb13 (patch) | |
| tree | 90058a22f17b8d17ab00fd24a45193519f169911 | |
| parent | 1366c160df036d5596240ea4b36b88afe2cd0d2a (diff) | |
| download | linux-fc14be9667ee06301c3fff578357c8d78749bb13.tar.gz linux-fc14be9667ee06301c3fff578357c8d78749bb13.zip | |
arm64: dts: renesas: r9a09g087m44-rzt2h-evk: Enable I2C0 and I2C1 support
Enable I2C0 and I2C1 on the RZ/N2H evaluation board.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/20250820200659.2048755-6-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
| -rw-r--r-- | arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts b/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts index fb2651c4c338..a068661fc442 100644 --- a/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts +++ b/arch/arm64/boot/dts/renesas/r9a09g087m44-rzn2h-evk.dts @@ -10,6 +10,14 @@ #include "r9a09g087m44.dtsi" #include "rzt2h-n2h-evk-common.dtsi" +/* + * I2C0 and LED8/9 share the same pins use the below + * macro to choose (and set approopriate DIP switches). + */ +#define I2C0 1 +#define LED8 (!I2C0) +#define LED9 (!I2C0) + / { model = "Renesas RZ/N2H EVK Board based on r9a09g087m44"; compatible = "renesas,rzn2h-evk", "renesas,r9a09g087m44", "renesas,r9a09g087"; @@ -60,6 +68,7 @@ function-enumerator = <8>; }; +#if LED8 led-8 { /* * USER_LED0 @@ -70,7 +79,9 @@ function = LED_FUNCTION_DEBUG; function-enumerator = <0>; }; +#endif +#if LED9 led-9 { /* * USER_LED1 @@ -81,6 +92,7 @@ function = LED_FUNCTION_DEBUG; function-enumerator = <1>; }; +#endif led-10 { /* @@ -105,3 +117,47 @@ }; }; }; + +#if I2C0 +&i2c0 { + pinctrl-0 = <&i2c0_pins>; + pinctrl-names = "default"; + clock-frequency = <400000>; + status = "okay"; +}; +#endif + +&i2c1 { + pinctrl-0 = <&i2c1_pins>; + pinctrl-names = "default"; + clock-frequency = <400000>; + status = "okay"; +}; + +&pinctrl { + /* + * I2C0 Pin Configuration: + * ------------------------ + * Signal | Pin | DSW15 + * -------|---------|-------------- + * SCL | P14_6 | 8: OFF, 9: ON, 10: OFF + * SDA | P14_7 | 5: ON, 6: OFF + */ + i2c0_pins: i2c0-pins { + pinmux = <RZT2H_PORT_PINMUX(14, 6, 0x17)>, + <RZT2H_PORT_PINMUX(14, 7, 0x17)>; + }; + + /* + * I2C1 Pin Configuration: + * ------------------------ + * Signal | Pin | DSW7 + * -------|---------|-------------- + * SCL | P03_3 | 1: ON, 2: OFF + * SDA | P03_4 | 3: ON, 4: OFF + */ + i2c1_pins: i2c1-pins { + pinmux = <RZT2H_PORT_PINMUX(3, 3, 0x17)>, + <RZT2H_PORT_PINMUX(3, 4, 0x17)>; + }; +}; |