diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/fsl_enetc.c | 15 |
1 files changed, 7 insertions, 8 deletions
diff --git a/drivers/net/fsl_enetc.c b/drivers/net/fsl_enetc.c index e86f3dddb5..02c1ee70d9 100644 --- a/drivers/net/fsl_enetc.c +++ b/drivers/net/fsl_enetc.c @@ -156,19 +156,14 @@ static void enetc_start_pcs(struct udevice *dev) priv->if_type = PHY_INTERFACE_MODE_NONE; - /* check internal mdio capability, not all ports need it */ + /* register internal MDIO for debug purposes */ if (enetc_read_port(priv, ENETC_PCAPR0) & ENETC_PCAPRO_MDIO) { - /* - * set up internal MDIO, this is part of ETH PCI function and is - * used to access serdes / internal SoC PHYs. - * We don't currently register it as a MDIO bus as it goes away - * when the interface is removed, so it can't practically be - * used in the console. - */ priv->imdio.read = enetc_mdio_read; priv->imdio.write = enetc_mdio_write; priv->imdio.priv = priv->port_regs + ENETC_PM_IMDIO_BASE; strncpy(priv->imdio.name, dev->name, MDIO_NAME_LEN); + if (!miiphy_get_dev_by_name(priv->imdio.name)) + mdio_register(&priv->imdio); } if (!ofnode_valid(dev->node)) { @@ -451,6 +446,10 @@ static void enetc_stop(struct udevice *dev) { /* FLR is sufficient to quiesce the device */ dm_pci_flr(dev); + /* leave the BARs accessible after we stop, this is needed to use + * internal MDIO in command line. + */ + dm_pci_clrset_config16(dev, PCI_COMMAND, 0, PCI_COMMAND_MEMORY); } /* |