[PATCH 14/14] arm64: dts: renesas: rzg2l: Set Ethernet PVDD to 1.8V

[Sumit Garg]

On Thu, 24 Oct 2024 at 20:56, Paul Barker <paul.barker.ct at 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 at bp.renesas.com>
> Reviewed-by: Geert Uytterhoeven <geert+renesas at glider.be>
> Acked-by: Linus Walleij <linus.walleij at linaro.org>
> Link: https://lore.kernel.org/20240625200316.4282-8-paul.barker.ct@bp.renesas.com
> Signed-off-by: Geert Uytterhoeven <geert+renesas at 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(-)
>

Acked-by: Sumit Garg <sumit.garg at linaro.org>

-Sumit

> 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 */
>                 };
>         };
>
> --
> 2.43.0
>