[PATCH v2] net: mv88e6xxx: fix missing SMI address initialization

[Stefan Roese]

On 12/6/23 15:35, Marek Mojík wrote:
> The mv88e6xxx driver does not currently initialize the smi_addr field, but
> instead keeps the default zero value. This leads to driver being unusable
> on devices where the switch is not on address zero of the mdio bus. Fix
> this problem by reading the SMI address from device tree.
> 
> Signed-off-by: Marek Mojík <marek.mojik at nic.cz>

Applied to u-boot-marvell/master

Thanks,
Stefan

> ---
>   drivers/net/mv88e6xxx.c | 8 ++++++++
>   1 file changed, 8 insertions(+)
> 
> diff --git a/drivers/net/mv88e6xxx.c b/drivers/net/mv88e6xxx.c
> index c073f81e72..8fbbc1cacc 100644
> --- a/drivers/net/mv88e6xxx.c
> +++ b/drivers/net/mv88e6xxx.c
> @@ -745,6 +745,7 @@ static int mv88e6xxx_probe(struct udevice *dev)
>   {
>   	struct dsa_pdata *dsa_pdata = dev_get_uclass_plat(dev);
>   	struct mv88e6xxx_priv *priv = dev_get_priv(dev);
> +	fdt_addr_t smi_addr;
>   	int val, ret;
>   
>   	if (ofnode_valid(dev_ofnode(dev)) &&
> @@ -753,6 +754,13 @@ static int mv88e6xxx_probe(struct udevice *dev)
>   		return -ENODEV;
>   	}
>   
> +	smi_addr = dev_read_addr(dev);
> +	if (smi_addr == FDT_ADDR_T_NONE) {
> +		dev_err(dev, "Missing SMI address\n");
> +		return -EINVAL;
> +	}
> +	priv->smi_addr = smi_addr;
> +
>   	/* probe internal mdio bus */
>   	ret = mv88e6xxx_probe_mdio(dev);
>   	if (ret)

Viele Grüße,
Stefan Roese

-- 
DENX Software Engineering GmbH,      Managing Director: Erika Unter
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-51 Fax: (+49)-8142-66989-80 Email: sr at denx.de