arm64: dts: renesas: rzg2lc: Enable Ethernet TXC output

Configure ET0_TXC and ET1_TXC as outputs on the Renesas RZ/G2LC SMARC
SoM, as per RGMII specification.

Signed-off-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/20240625200316.4282-6-paul.barker.ct@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

diff --git a/arch/arm64/boot/dts/renesas/rzg2lc-smarc-som.dtsi b/arch/arm64/boot/dts/renesas/rzg2lc-smarc-som.dtsi
index 5e4209d6fb42f3a30339c90c622658527a38be44..664311fd2098e54faade867ec401331b654fdf96 100644 (file)
--- a/arch/arm64/boot/dts/renesas/rzg2lc-smarc-som.dtsi
+++ b/arch/arm64/boot/dts/renesas/rzg2lc-smarc-som.dtsi
@@ -128,22 +128,28 @@
 
 &pinctrl {
        eth0_pins: eth0 {
-               pinmux = <RZG2L_PORT_PINMUX(28, 1, 1)>, /* ET0_LINKSTA */
-                        <RZG2L_PORT_PINMUX(27, 1, 1)>, /* ET0_MDC */
-                        <RZG2L_PORT_PINMUX(28, 0, 1)>, /* ET0_MDIO */
-                        <RZG2L_PORT_PINMUX(20, 0, 1)>, /* ET0_TXC */
-                        <RZG2L_PORT_PINMUX(20, 1, 1)>, /* ET0_TX_CTL */
-                        <RZG2L_PORT_PINMUX(20, 2, 1)>, /* ET0_TXD0 */
-                        <RZG2L_PORT_PINMUX(21, 0, 1)>, /* ET0_TXD1 */
-                        <RZG2L_PORT_PINMUX(21, 1, 1)>, /* ET0_TXD2 */
-                        <RZG2L_PORT_PINMUX(22, 0, 1)>, /* ET0_TXD3 */
-                        <RZG2L_PORT_PINMUX(24, 0, 1)>, /* ET0_RXC */
-                        <RZG2L_PORT_PINMUX(24, 1, 1)>, /* ET0_RX_CTL */
-                        <RZG2L_PORT_PINMUX(25, 0, 1)>, /* ET0_RXD0 */
-                        <RZG2L_PORT_PINMUX(25, 1, 1)>, /* ET0_RXD1 */
-                        <RZG2L_PORT_PINMUX(26, 0, 1)>, /* ET0_RXD2 */
-                        <RZG2L_PORT_PINMUX(26, 1, 1)>, /* ET0_RXD3 */
-                        <RZG2L_PORT_PINMUX(0, 0, 1)>;  /* IRQ0 */
+               txc {
+                       pinmux = <RZG2L_PORT_PINMUX(20, 0, 1)>; /* ET0_TXC */
+                       output-enable;
+               };
+
+               mux {
+                       pinmux = <RZG2L_PORT_PINMUX(28, 1, 1)>, /* ET0_LINKSTA */
+                                <RZG2L_PORT_PINMUX(27, 1, 1)>, /* ET0_MDC */
+                                <RZG2L_PORT_PINMUX(28, 0, 1)>, /* ET0_MDIO */
+                                <RZG2L_PORT_PINMUX(20, 1, 1)>, /* ET0_TX_CTL */
+                                <RZG2L_PORT_PINMUX(20, 2, 1)>, /* ET0_TXD0 */
+                                <RZG2L_PORT_PINMUX(21, 0, 1)>, /* ET0_TXD1 */
+                                <RZG2L_PORT_PINMUX(21, 1, 1)>, /* ET0_TXD2 */
+                                <RZG2L_PORT_PINMUX(22, 0, 1)>, /* ET0_TXD3 */
+                                <RZG2L_PORT_PINMUX(24, 0, 1)>, /* ET0_RXC */
+                                <RZG2L_PORT_PINMUX(24, 1, 1)>, /* ET0_RX_CTL */
+                                <RZG2L_PORT_PINMUX(25, 0, 1)>, /* ET0_RXD0 */
+                                <RZG2L_PORT_PINMUX(25, 1, 1)>, /* ET0_RXD1 */
+                                <RZG2L_PORT_PINMUX(26, 0, 1)>, /* ET0_RXD2 */
+                                <RZG2L_PORT_PINMUX(26, 1, 1)>, /* ET0_RXD3 */
+                                <RZG2L_PORT_PINMUX(0, 0, 1)>;  /* IRQ0 */
+               };
        };
 
        gpio-sd0-pwr-en-hog {