[PATCH] net: gem: Add support for more PHYs on MDIO bus

[Michal Simek]

po 24. 8. 2020 v 13:45 odesílatel Michal Simek <michal.simek at xilinx.com> napsal:
>
> Find out MDIO bus and enable MDIO access to it if this is done via
> different GEM controller. Only works across GEM instances.
>
> Signed-off-by: Michal Simek <michal.simek at xilinx.com>
> ---
>
>  drivers/net/zynq_gem.c | 10 ++++++++++
>  1 file changed, 10 insertions(+)
>
> diff --git a/drivers/net/zynq_gem.c b/drivers/net/zynq_gem.c
> index da4b6fba9ff6..8afec8bbfcff 100644
> --- a/drivers/net/zynq_gem.c
> +++ b/drivers/net/zynq_gem.c
> @@ -758,6 +758,9 @@ static int zynq_gem_ofdata_to_platdata(struct udevice *dev)
>
>         if (!dev_read_phandle_with_args(dev, "phy-handle", NULL, 0, 0,
>                                         &phandle_args)) {
> +               fdt_addr_t addr;
> +               ofnode parent;
> +
>                 debug("phy-handle does exist %s\n", dev->name);
>                 priv->phyaddr = ofnode_read_u32_default(phandle_args.node,
>                                                         "reg", -1);
> @@ -765,6 +768,13 @@ static int zynq_gem_ofdata_to_platdata(struct udevice *dev)
>                 priv->max_speed = ofnode_read_u32_default(phandle_args.node,
>                                                           "max-speed",
>                                                           SPEED_1000);
> +
> +               parent = ofnode_get_parent(phandle_args.node);
> +               addr = ofnode_get_addr(parent);
> +               if (addr != FDT_ADDR_T_NONE) {
> +                       debug("MDIO bus not found %s\n", dev->name);
> +                       priv->mdiobase = (struct zynq_gem_regs *)addr;
> +               }
>         }
>
>         phy_mode = dev_read_prop(dev, "phy-mode", NULL);
> --
> 2.28.0
>

Applied.
M

-- 
Michal Simek, Ing. (M.Eng), OpenPGP -> KeyID: FE3D1F91
w: www.monstr.eu p: +42-0-721842854
Maintainer of Linux kernel - Xilinx Microblaze
Maintainer of Linux kernel - Xilinx Zynq ARM and ZynqMP ARM64 SoCs
U-Boot custodian - Xilinx Microblaze/Zynq/ZynqMP/Versal SoCs