diff options
| author | René van Dorst <opensource@vdorst.com> | 2019-06-20 14:21:54 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-06-22 16:58:24 -0700 |
| commit | 8efaa653a8a540c2cc4b3a7bb4459ec5ea27f1fd (patch) | |
| tree | 67f190bc28f6396d758cb98b17ddacefe35297f1 /drivers/net/ethernet/mediatek/mtk_eth_soc.c | |
| parent | b272a0ad730103e84fb735fd0a8cc050cdf7f77c (diff) | |
| download | linux-stable-8efaa653a8a540c2cc4b3a7bb4459ec5ea27f1fd.tar.gz linux-stable-8efaa653a8a540c2cc4b3a7bb4459ec5ea27f1fd.tar.bz2 linux-stable-8efaa653a8a540c2cc4b3a7bb4459ec5ea27f1fd.zip | |
net: ethernet: mediatek: Add MT7621 TRGMII mode support
MT7621 SOC also supports TRGMII.
TRGMII speed is 1200MBit.
Signed-off-by: René van Dorst <opensource@vdorst.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/mediatek/mtk_eth_soc.c')
| -rw-r--r-- | drivers/net/ethernet/mediatek/mtk_eth_soc.c | 38 |
1 files changed, 34 insertions, 4 deletions
diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index f27efe4110cc..066712f2e985 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -134,6 +134,28 @@ static int mtk_mdio_read(struct mii_bus *bus, int phy_addr, int phy_reg) return _mtk_mdio_read(eth, phy_addr, phy_reg); } +static int mt7621_gmac0_rgmii_adjust(struct mtk_eth *eth, + phy_interface_t interface) +{ + u32 val; + + /* Check DDR memory type. Currently DDR2 is not supported. */ + regmap_read(eth->ethsys, ETHSYS_SYSCFG, &val); + if (val & SYSCFG_DRAM_TYPE_DDR2) { + dev_err(eth->dev, + "TRGMII mode with DDR2 memory is not supported!\n"); + return -EOPNOTSUPP; + } + + val = (interface == PHY_INTERFACE_MODE_TRGMII) ? + ETHSYS_TRGMII_MT7621_DDR_PLL : 0; + + regmap_update_bits(eth->ethsys, ETHSYS_CLKCFG0, + ETHSYS_TRGMII_MT7621_MASK, val); + + return 0; +} + static void mtk_gmac0_rgmii_adjust(struct mtk_eth *eth, int speed) { u32 val; @@ -183,9 +205,17 @@ static void mtk_phy_link_adjust(struct net_device *dev) break; } - if (MTK_HAS_CAPS(mac->hw->soc->caps, MTK_GMAC1_TRGMII) && - !mac->id && !mac->trgmii) - mtk_gmac0_rgmii_adjust(mac->hw, dev->phydev->speed); + if (MTK_HAS_CAPS(mac->hw->soc->caps, MTK_GMAC1_TRGMII) && !mac->id) { + if (MTK_HAS_CAPS(mac->hw->soc->caps, MTK_TRGMII_MT7621_CLK)) { + if (mt7621_gmac0_rgmii_adjust(mac->hw, + dev->phydev->interface)) + return; + } else { + if (!mac->trgmii) + mtk_gmac0_rgmii_adjust(mac->hw, + dev->phydev->speed); + } + } if (dev->phydev->link) mcr |= MAC_MCR_FORCE_LINK; @@ -2607,7 +2637,7 @@ static const struct mtk_soc_data mt2701_data = { }; static const struct mtk_soc_data mt7621_data = { - .caps = MTK_SHARED_INT, + .caps = MT7621_CAPS, .required_clks = MT7621_CLKS_BITMAP, .required_pctl = false, }; |