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arm64: dts: renesas: rzg2ul-smarc: Add support for enabling MTU3

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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>
This commit is contained in:
Biju Das
2023-07-27 09:18:48 +01:00
committed by Geert Uytterhoeven
parent a4c125a8a3
commit e578a36320
3 changed files with 30 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

11
arch/arm64/boot/dts/renesas/r9a07g043u11-smarc.dts
View File

@@ -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"

6
arch/arm64/boot/dts/renesas/rzg2ul-smarc-pinfunction.dtsi
View File

@@ -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 */

13
arch/arm64/boot/dts/renesas/rzg2ul-smarc.dtsi
View File

@@ -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>;