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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2020-06-22 12:09:42 +0200 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2020-07-14 20:20:18 +0200 |
| commit | f6dee177830ea8007614d7f2789b4a28b95b112a (patch) | |
| tree | 4e5b89fe41a84cc32661c95e3df2b983075467a5 /drivers/net/phy | |
| parent | d46b337511c808565709a62c62df1379b7f10e81 (diff) | |
| download | barebox-f6dee177830ea8007614d7f2789b4a28b95b112a.tar.gz barebox-f6dee177830ea8007614d7f2789b4a28b95b112a.tar.xz | |
net: phy: realtek: handle RX delay setting
RX delay and TX delay can be configured independently on the RTL8211F.
Decode the phy mode setting and set both bits accordingly. This is based
on Linux commit 1b3047b5208a ("net: phy: realtek: add support for
configuring the RX delay on RTL8211F")
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'drivers/net/phy')
| -rw-r--r-- | drivers/net/phy/realtek.c | 48 |
1 files changed, 40 insertions, 8 deletions
diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c index 4ae050128c..695a6c384d 100644 --- a/drivers/net/phy/realtek.c +++ b/drivers/net/phy/realtek.c @@ -34,6 +34,7 @@ #define RTL8211F_INSR 0x1d #define RTL8211F_TX_DELAY BIT(8) +#define RTL8211F_RX_DELAY BIT(3) #define RTL8201F_ISR 0x1e #define RTL8201F_IER 0x13 @@ -84,19 +85,50 @@ static int rtl8211c_config_init(struct phy_device *phydev) static int rtl8211f_config_init(struct phy_device *phydev) { + struct device_d *dev = &phydev->dev; + u16 val_txdly, val_rxdly; int ret; - u16 val = 0; - ret = genphy_config_init(phydev); - if (ret < 0) + switch (phydev->interface) { + case PHY_INTERFACE_MODE_RGMII: + val_txdly = 0; + val_rxdly = 0; + break; + + case PHY_INTERFACE_MODE_RGMII_RXID: + val_txdly = 0; + val_rxdly = RTL8211F_RX_DELAY; + break; + + case PHY_INTERFACE_MODE_RGMII_TXID: + val_txdly = RTL8211F_TX_DELAY; + val_rxdly = 0; + break; + + case PHY_INTERFACE_MODE_RGMII_ID: + val_txdly = RTL8211F_TX_DELAY; + val_rxdly = RTL8211F_RX_DELAY; + break; + + default: /* the rest of the modes imply leaving delay as is. */ + return 0; + } + + ret = phy_modify_paged(phydev, 0xd08, 0x11, RTL8211F_TX_DELAY, + val_txdly); + if (ret < 0) { + dev_err(dev, "Failed to update the TX delay register\n"); return ret; + } - /* enable TX-delay for rgmii-id and rgmii-txid, otherwise disable it */ - if (phydev->interface == PHY_INTERFACE_MODE_RGMII_ID || - phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID) - val = RTL8211F_TX_DELAY; + ret = phy_modify_paged(phydev, 0xd08, 0x15, RTL8211F_RX_DELAY, + val_rxdly); + if (ret < 0) { + dev_err(dev, "Failed to update the RX delay register\n"); + return ret; + } - return phy_modify_paged(phydev, 0xd08, 0x11, RTL8211F_TX_DELAY, val); + return 0; } static int rtl8366rb_config_init(struct phy_device *phydev) |