| Message ID | 20240524094603.988-8-paul.barker.ct@bp.renesas.com (mailing list archive) |
|---|---|
| State | Superseded |
| Delegated to: | Geert Uytterhoeven |
| Headers | show |
| Series | Configure GbEth for RGMII on RZ/G2L family | expand |
On Fri, May 24, 2024 at 11:47 AM Paul Barker <paul.barker.ct@bp.renesas.com> wrote: > 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> Gr{oetje,eeting}s, Geert
diff --git a/arch/arm64/boot/dts/renesas/rzg2l-smarc-som.dtsi b/arch/arm64/boot/dts/renesas/rzg2l-smarc-som.dtsi index 2b5e037ea9fa..83f5642d0d35 100644 --- a/arch/arm64/boot/dts/renesas/rzg2l-smarc-som.dtsi +++ b/arch/arm64/boot/dts/renesas/rzg2l-smarc-som.dtsi @@ -182,6 +182,7 @@ adc_pins: adc { eth0_pins: eth0 { txc { pinmux = <RZG2L_PORT_PINMUX(20, 0, 1)>; /* ET0_TXC */ + power-source = <1800>; output-enable; }; @@ -199,14 +200,19 @@ mux { <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 @@ mux { <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 */ }; };
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> --- .../boot/dts/renesas/rzg2l-smarc-som.dtsi | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-)