On the RZ/G2L & RZ/V2L SMARC SOMs, the RGMII interface between the SoC and the Ethernet PHY operates at 1.8V.
The power supply for this interface may be correctly configured in u-boot, but the kernel should not be relying on this. Now that the RZ/G2L pinctrl driver supports configuring the Ethernet power supply voltage, we can simply specify the desired voltage in the device tree.
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/20240625200316.4282-8-paul.barker.ct@bp.renesas.com Signed-off-by: Geert Uytterhoeven geert+renesas@glider.be
[ upstream commit: 96a3f525708120379013d9d3265663c07ceb38d5 ]
(cherry picked from commit c535103b52a1edf50309dcbd1948d56520e84a1e) --- .../src/arm64/renesas/rzg2l-smarc-som.dtsi | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-)
diff --git a/dts/upstream/src/arm64/renesas/rzg2l-smarc-som.dtsi b/dts/upstream/src/arm64/renesas/rzg2l-smarc-som.dtsi index 2b5e037ea9fa..83f5642d0d35 100644 --- a/dts/upstream/src/arm64/renesas/rzg2l-smarc-som.dtsi +++ b/dts/upstream/src/arm64/renesas/rzg2l-smarc-som.dtsi @@ -182,6 +182,7 @@ eth0_pins: eth0 { txc { pinmux = <RZG2L_PORT_PINMUX(20, 0, 1)>; /* ET0_TXC */ + power-source = <1800>; output-enable; };
@@ -199,14 +200,19 @@ <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(1, 0, 1)>; /* IRQ2 */ + <RZG2L_PORT_PINMUX(26, 1, 1)>; /* ET0_RXD3 */ + power-source = <1800>; + }; + + irq { + pinmux = <RZG2L_PORT_PINMUX(1, 0, 1)>; /* IRQ2 */ }; };
eth1_pins: eth1 { txc { pinmux = <RZG2L_PORT_PINMUX(29, 0, 1)>; /* ET1_TXC */ + power-source = <1800>; output-enable; };
@@ -224,8 +230,12 @@ <RZG2L_PORT_PINMUX(34, 1, 1)>, /* ET1_RXD0 */ <RZG2L_PORT_PINMUX(35, 0, 1)>, /* ET1_RXD1 */ <RZG2L_PORT_PINMUX(35, 1, 1)>, /* ET1_RXD2 */ - <RZG2L_PORT_PINMUX(36, 0, 1)>, /* ET1_RXD3 */ - <RZG2L_PORT_PINMUX(1, 1, 1)>; /* IRQ3 */ + <RZG2L_PORT_PINMUX(36, 0, 1)>; /* ET1_RXD3 */ + power-source = <1800>; + }; + + irq { + pinmux = <RZG2L_PORT_PINMUX(1, 1, 1)>; /* IRQ3 */ }; };