[PATCH 3/5] ARM: dts: stm32: Add alternate pinmux for ethernet0 pins

[Johann Neuhauser]

> From: Marek Vasut [mailto:marex at denx.de]
> Sent: Tuesday, January 18, 2022 9:30 PM
> 
> Add another mux option for ethernet0 pins, this is used on DHCOM when
> the ethernet PHY 50 MHz clock is generated by the MCO2 on PG2 pin and
> then fed back via PA1 pin.
> 
> Signed-off-by: Marek Vasut <marex at denx.de>
> Cc: Alexandre Torgue <alexandre.torgue at foss.st.com>
> Cc: Christophe Roullier <christophe.roullier at foss.st.com>
> Cc: Gabriel Fernandez <gabriel.fernandez at foss.st.com>
> Cc: Patrice Chotard <patrice.chotard at foss.st.com>
> Cc: Patrick Delaunay <patrick.delaunay at foss.st.com>
> Cc: Stephen Boyd <sboyd at kernel.org>
> Cc: linux-clk at vger.kernel.org
> Cc: linux-stm32 at st-md-mailman.stormreply.com
> To: linux-arm-kernel at lists.infradead.org
> ---
>  arch/arm/boot/dts/stm32mp15-pinctrl.dtsi | 34 ++++++++++++++++++++++++
>  1 file changed, 34 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
> index 3b65130affec8..2cd2ac9beaf20 100644
> --- a/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
> +++ b/arch/arm/boot/dts/stm32mp15-pinctrl.dtsi
> @@ -338,6 +338,40 @@ pins1 {
>                 };
>         };
> 
> +       ethernet0_rmii_pins_b: rmii-1 {
> +               pins1 {
> +                       pinmux = <STM32_PINMUX('G', 13, AF11)>, /* ETH1_RMII_TXD0 */
> +                                <STM32_PINMUX('G', 14, AF11)>, /* ETH1_RMII_TXD1 */
> +                                <STM32_PINMUX('B', 11, AF11)>, /* ETH1_RMII_TX_EN */
> +                                <STM32_PINMUX('A', 1, AF11)>,  /* ETH1_RMII_REF_CLK */
> +                                <STM32_PINMUX('A', 2, AF11)>,  /* ETH1_MDIO */
> +                                <STM32_PINMUX('C', 1, AF11)>;  /* ETH1_MDC */
> +                       bias-disable;
> +                       drive-push-pull;
> +                       slew-rate = <2>;
> +               };
> +               pins2 {
> +                       pinmux = <STM32_PINMUX('C', 4, AF11)>,  /* ETH1_RMII_RXD0 */
> +                                <STM32_PINMUX('C', 5, AF11)>,  /* ETH1_RMII_RXD1 */
> +                                <STM32_PINMUX('A', 7, AF11)>;  /* ETH1_RMII_CRS_DV */
> +                       bias-disable;
> +               };
> +       };
> +
> +       ethernet0_rmii_sleep_pins_b: rmii-sleep-1 {
> +               pins1 {
> +                       pinmux = <STM32_PINMUX('G', 13, ANALOG)>, /* ETH1_RMII_TXD0 */
> +                                <STM32_PINMUX('G', 14, ANALOG)>, /* ETH1_RMII_TXD1 */
> +                                <STM32_PINMUX('B', 11, ANALOG)>, /* ETH1_RMII_TX_EN */
> +                                <STM32_PINMUX('A', 2, ANALOG)>,  /* ETH1_MDIO */
> +                                <STM32_PINMUX('C', 1, ANALOG)>,  /* ETH1_MDC */
> +                                <STM32_PINMUX('C', 4, ANALOG)>,  /* ETH1_RMII_RXD0 */
> +                                <STM32_PINMUX('C', 5, ANALOG)>,  /* ETH1_RMII_RXD1 */
> +                                <STM32_PINMUX('A', 1, ANALOG)>,  /* ETH1_RMII_REF_CLK */
> +                                <STM32_PINMUX('A', 7, ANALOG)>;  /* ETH1_RMII_CRS_DV */
> +               };
> +       };
> +
>         fmc_pins_a: fmc-0 {
>                 pins1 {
>                         pinmux = <STM32_PINMUX('D', 4, AF12)>, /* FMC_NOE */
> --
> 2.34.1
Tested-by: Johann Neuhauser <jneuhauser at dh-electronics.com>