diff options
| author | Biju Das <biju.das.jz@bp.renesas.com> | 2023-07-27 11:18:48 +0300 |
|---|---|---|
| committer | Geert Uytterhoeven <geert+renesas@glider.be> | 2023-07-27 15:40:26 +0300 |
| commit | e578a36320f92e88a46d6cd66458895d2d45d965 (patch) | |
| tree | 4d0ca9ebb84d4c3d878558d5c9a0118f027060fa /arch/arm64/boot/dts/renesas | |
| parent | a4c125a8a35113f53f5085b376cb9a9763fb9129 (diff) | |
| download | linux-e578a36320f92e88a46d6cd66458895d2d45d965.tar.xz | |
arm64: dts: renesas: rzg2ul-smarc: Add support for enabling MTU3
Add support for PMOD_MTU3 macro to enable MTU3 node on RZ/G2UL SMARC
EVK.
The MTU3a PWM pins on PMOD0 are muxed with SPI1. Disable SPI1, when
PMOD_MTU3 macro is enabled.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230727081848.100834-6-biju.das.jz@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Diffstat (limited to 'arch/arm64/boot/dts/renesas')
| -rw-r--r-- | arch/arm64/boot/dts/renesas/r9a07g043u11-smarc.dts | 11 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/renesas/rzg2ul-smarc-pinfunction.dtsi | 6 | ||||
| -rw-r--r-- | arch/arm64/boot/dts/renesas/rzg2ul-smarc.dtsi | 13 |
3 files changed, 30 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/renesas/r9a07g043u11-smarc.dts b/arch/arm64/boot/dts/renesas/r9a07g043u11-smarc.dts index 01483b4302c2..8e0107df2d46 100644 --- a/arch/arm64/boot/dts/renesas/r9a07g043u11-smarc.dts +++ b/arch/arm64/boot/dts/renesas/r9a07g043u11-smarc.dts @@ -17,6 +17,17 @@ #define SW_SW0_DEV_SEL 1 #define SW_ET0_EN_N 1 +/* + * To enable MTU3a PWM on PMOD0, + * - Set DIP-Switch SW1-3 to On position. + * - Set PMOD_MTU3 macro to 1. + */ +#define PMOD_MTU3 0 + +#if (PMOD_MTU3 && !SW_ET0_EN_N) +#error "Cannot set as both PMOD_MTU3 and !SW_ET0_EN_N are mutually exclusive" +#endif + #include "r9a07g043u.dtsi" #include "rzg2ul-smarc-som.dtsi" #include "rzg2ul-smarc.dtsi" diff --git a/arch/arm64/boot/dts/renesas/rzg2ul-smarc-pinfunction.dtsi b/arch/arm64/boot/dts/renesas/rzg2ul-smarc-pinfunction.dtsi index 58923dc83faa..355694fe4af6 100644 --- a/arch/arm64/boot/dts/renesas/rzg2ul-smarc-pinfunction.dtsi +++ b/arch/arm64/boot/dts/renesas/rzg2ul-smarc-pinfunction.dtsi @@ -50,6 +50,12 @@ input-enable; }; + mtu3_pins: mtu3 { + mtu2-pwm { + pinmux = <RZG2L_PORT_PINMUX(4, 0, 4)>; /* MTIOC2A */ + }; + }; + scif0_pins: scif0 { pinmux = <RZG2L_PORT_PINMUX(6, 4, 6)>, /* TxD */ <RZG2L_PORT_PINMUX(6, 3, 6)>; /* RxD */ diff --git a/arch/arm64/boot/dts/renesas/rzg2ul-smarc.dtsi b/arch/arm64/boot/dts/renesas/rzg2ul-smarc.dtsi index 2a1331ed1a5c..8eb411aac80d 100644 --- a/arch/arm64/boot/dts/renesas/rzg2ul-smarc.dtsi +++ b/arch/arm64/boot/dts/renesas/rzg2ul-smarc.dtsi @@ -28,6 +28,19 @@ }; }; +#if PMOD_MTU3 +&mtu3 { + pinctrl-0 = <&mtu3_pins>; + pinctrl-names = "default"; + + status = "okay"; +}; + +&spi1 { + status = "disabled"; +}; +#endif + #if (SW_ET0_EN_N) &ssi1 { pinctrl-0 = <&ssi1_pins>; |