Commit 5d7de61f authored by Biju Das's avatar Biju Das Committed by Geert Uytterhoeven
Browse files

arm64: dts: renesas: rzg2lc-smarc: Add support for enabling MTU3 



Add support for PMOD_MTU3 macro to enable MTU3 node on RZ/G2LC SMARC
EVK.

The MTU3a PWM pins on PMOD0 are muxed with SPI1. Disable SPI1, when
PMOD_MTU3 macro is enabled.

Signed-off-by: default avatarBiju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20230707155849.86649-1-biju.das.jz@bp.renesas.com


Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
parent 10ca61c6

arch/arm64/boot/dts/renesas/r9a07g044c2-smarc.dts

+12 −0
Original line number Diff line number Diff line
@@ -35,6 +35,18 @@ 
/* comment the #define statement to disable SCIF1 (SER0) on PMOD1 (CN7) */

#define PMOD1_SER0	1



/*

 * To enable MTU3a PWM on PMOD0,

 *  - Set DIP-Switch SW1-4 to Off position.

 *  - Set SW_RSPI_CAN macro to 0.

 *  - Set PMOD_MTU3 macro to 1.

 */

#define PMOD_MTU3	0



#if (PMOD_MTU3 && SW_RSPI_CAN)

#error "Cannot set as both PMOD_MTU3 and SW_RSPI_CAN are mutually exclusive"

#endif



#include "r9a07g044c2.dtsi"

#include "rzg2lc-smarc-som.dtsi"

#include "rzg2lc-smarc.dtsi"

arch/arm64/boot/dts/renesas/rzg2lc-smarc-pinfunction.dtsi

+9 −0
Original line number Diff line number Diff line
@@ -50,6 +50,15 @@ i2c2_pins: i2c2 { 
			 <RZG2L_PORT_PINMUX(42, 4, 1)>; /* SCL */

	};



	mtu3_pins: mtu3 {

		mtu3-pwm {

			pinmux = <RZG2L_PORT_PINMUX(44, 0, 4)>, /* MTIOC3A */

				 <RZG2L_PORT_PINMUX(44, 1, 4)>, /* MTIOC3B */

				 <RZG2L_PORT_PINMUX(44, 2, 4)>, /* MTIOC3C */

				 <RZG2L_PORT_PINMUX(44, 3, 4)>; /* MTIOC3D */

		};

	};



	scif0_pins: scif0 {

		pinmux = <RZG2L_PORT_PINMUX(38, 0, 1)>,	/* TxD */

			 <RZG2L_PORT_PINMUX(38, 1, 1)>;	/* RxD */

arch/arm64/boot/dts/renesas/rzg2lc-smarc.dtsi

+13 −1
Original line number Diff line number Diff line
@@ -11,7 +11,6 @@ 
#include "rzg2lc-smarc-pinfunction.dtsi"

#include "rz-smarc-common.dtsi"





/ {

	aliases {

		serial1 = &scif1;
@@ -129,6 +128,19 @@ wm8978: codec@1a { 
	};

};



#if PMOD_MTU3

&mtu3 {

	pinctrl-0 = <&mtu3_pins>;

	pinctrl-names = "default";



	status = "okay";

};



&spi1 {

	status = "disabled";

};

#endif



/*

 * To enable SCIF1 (SER0) on PMOD1 (CN7), On connector board

 * SW1 should be at position 2->3 so that SER0_CTS# line is activated