diff options
| author | LABBE Corentin <clabbe.montjoie@gmail.com> | 2017-06-27 12:28:01 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-06-29 19:23:27 +0300 |
| commit | 1c2fa5f846832cbed8b8e6151471436071972e41 (patch) | |
| tree | df18b4aa6d12d90bd1d4cdc81cfdde065dc2bfda /drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | |
| parent | eac306b4adb7452c0228f32dd004f791ab08aae8 (diff) | |
| download | linux-1c2fa5f846832cbed8b8e6151471436071972e41.tar.xz | |
net: stmmac: support future possible different internal phy mode
The current way to find if the phy is internal is to compare DT phy-mode
and emac_variant/internal_phy.
But it will negate a possible future SoC where an external PHY use the
same phy mode than the internal one.
By using phy-mode = "internal" we permit to have an external PHY with
the same mode than the internal one.
Reported-by: André Przywara <andre.przywara@arm.com>
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c index fffd6d5fc907..6c2d1da05588 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c @@ -638,7 +638,7 @@ static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv) { struct sunxi_priv_data *gmac = priv->plat->bsp_priv; struct device_node *node = priv->device->of_node; - int ret; + int ret, phy_interface; u32 reg, val; regmap_read(gmac->regmap, SYSCON_EMAC_REG, &val); @@ -718,7 +718,11 @@ static int sun8i_dwmac_set_syscon(struct stmmac_priv *priv) if (gmac->variant->support_rmii) reg &= ~SYSCON_RMII_EN; - switch (priv->plat->interface) { + phy_interface = priv->plat->interface; + /* if PHY is internal, select the mode (xMII) used by the SoC */ + if (gmac->use_internal_phy) + phy_interface = gmac->variant->internal_phy; + switch (phy_interface) { case PHY_INTERFACE_MODE_MII: /* default */ break; @@ -932,7 +936,7 @@ static int sun8i_dwmac_probe(struct platform_device *pdev) } plat_dat->interface = of_get_phy_mode(dev->of_node); - if (plat_dat->interface == gmac->variant->internal_phy) { + if (plat_dat->interface == PHY_INTERFACE_MODE_INTERNAL) { dev_info(&pdev->dev, "Will use internal PHY\n"); gmac->use_internal_phy = true; gmac->ephy_clk = of_clk_get(plat_dat->phy_node, 0); |