[PATCH] net: sun8i-emac: Fix pinmux setup for Allwinner H5

[Ramon Fried]

On Fri, Apr 16, 2021 at 2:06 PM Andre Przywara <andre.przywara at arm.com> wrote:
>
> Commit eb5a2b671075 ("net: sun8i-emac: Determine pinmux based on SoC,
> not EMAC type") switched the pinmux setup over to look at
> CONFIG_MACH_SUN* symbols, to find the appropriate mux value.
> Unfortunately this patch missed to check for the H5, which is
> pin-compatible to the H3, but uses a different Kconfig symbol (because
> it has ARMv8 vs. ARMv7 cores).
>
> Replace the pure SUN8I_H3 symbol with the joint SUNXI_H3_H5 one, which is
> there to cover the peripherals common to both SoCs.
> Also explicitly list each supported SoC, and have an error message in the
> fallback case, to avoid those problems in the future.
>
> This fixes Ethernet support on all H5 boards.
>
> Signed-off-by: Andre Przywara <andre.przywara at arm.com>
> ---
>  drivers/net/sun8i_emac.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/sun8i_emac.c b/drivers/net/sun8i_emac.c
> index a6cdda81a76..5a1b38bf80f 100644
> --- a/drivers/net/sun8i_emac.c
> +++ b/drivers/net/sun8i_emac.c
> @@ -554,7 +554,7 @@ static int parse_phy_pins(struct udevice *dev)
>          * The GPIO pinmux value is an integration choice, so depends on the
>          * SoC, not the EMAC variant.
>          */
> -       if (IS_ENABLED(CONFIG_MACH_SUN8I_H3))
> +       if (IS_ENABLED(CONFIG_MACH_SUNXI_H3_H5))
>                 iomux = SUN8I_IOMUX_H3;
>         else if (IS_ENABLED(CONFIG_MACH_SUN8I_R40))
>                 iomux = SUN8I_IOMUX_R40;
> @@ -562,8 +562,12 @@ static int parse_phy_pins(struct udevice *dev)
>                 iomux = SUN8I_IOMUX_H6;
>         else if (IS_ENABLED(CONFIG_MACH_SUN50I_H616))
>                 iomux = SUN8I_IOMUX_H616;
> -       else
> +       else if (IS_ENABLED(CONFIG_MACH_SUN8I_A83T))
> +               iomux = SUN8I_IOMUX;
> +       else if (IS_ENABLED(CONFIG_MACH_SUN50I))
>                 iomux = SUN8I_IOMUX;
> +       else
> +               BUILD_BUG_ON_MSG(1, "missing pinmux value for Ethernet pins");
>
>         for (i = 0; ; i++) {
>                 int pin;
> --
> 2.17.5
>
Reviewed-by: Ramon Fried <rfried.dev at gmail.com>