diff options
| author | Heinrich Schuchardt | 2021-06-03 07:52:41 +0000 |
|---|---|---|
| committer | Ramon Fried | 2021-06-18 11:29:17 +0300 |
| commit | 02036d90ec10510c8218aad463a332a50c3528c4 (patch) | |
| tree | 03dd440701684c499677feeab062d5609893439b /drivers/net | |
| parent | eab447b2b5d3d357f07a28150b13862b1c26b2e2 (diff) | |
net: sun8i-emac: fix MDIO frequency
Commit 4f0278dac56a ("net: sun8i-emac: Lower MDIO frequency") leads to
network failure on the OrangePi PC.
=> dhcp
sun8i_emac_eth_start: Timeout
According to the commit message the change of the MDIO frequency is only
required for external PHYs.
Fixes: 4f0278dac56a ("net: sun8i-emac: Lower MDIO frequency")
Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/sun8i_emac.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/sun8i_emac.c b/drivers/net/sun8i_emac.c index 5a1b38bf80f..d7553fe1634 100644 --- a/drivers/net/sun8i_emac.c +++ b/drivers/net/sun8i_emac.c @@ -211,7 +211,9 @@ static int sun8i_mdio_read(struct mii_dev *bus, int addr, int devad, int reg) * The EMAC clock is either 200 or 300 MHz, so we need a divider * of 128 to get the MDIO frequency below the required 2.5 MHz. */ - mii_cmd |= MDIO_CMD_MII_CLK_CSR_DIV_128 << MDIO_CMD_MII_CLK_CSR_SHIFT; + if (!priv->use_internal_phy) + mii_cmd |= MDIO_CMD_MII_CLK_CSR_DIV_128 << + MDIO_CMD_MII_CLK_CSR_SHIFT; mii_cmd |= MDIO_CMD_MII_BUSY; @@ -242,7 +244,9 @@ static int sun8i_mdio_write(struct mii_dev *bus, int addr, int devad, int reg, * The EMAC clock is either 200 or 300 MHz, so we need a divider * of 128 to get the MDIO frequency below the required 2.5 MHz. */ - mii_cmd |= MDIO_CMD_MII_CLK_CSR_DIV_128 << MDIO_CMD_MII_CLK_CSR_SHIFT; + if (!priv->use_internal_phy) + mii_cmd |= MDIO_CMD_MII_CLK_CSR_DIV_128 << + MDIO_CMD_MII_CLK_CSR_SHIFT; mii_cmd |= MDIO_CMD_MII_WRITE; mii_cmd |= MDIO_CMD_MII_BUSY; |