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net: mv88e6xxx: fix missing SMI address initialization

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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@nic.cz>
Reviewed-by: Marek Behún <kabel@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
This commit is contained in:
Marek Mojík 2023-12-06 15:35:56 +01:00 committed by Stefan Roese
parent 773cb2bca7
commit faf96b20ee
1 changed files with 8 additions and 0 deletions
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8
drivers/net/mv88e6xxx.c
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@ -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)