diff options
Diffstat (limited to 'drivers/net/phy/micrel.c')
| -rw-r--r-- | drivers/net/phy/micrel.c | 53 |
1 files changed, 38 insertions, 15 deletions
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c index ebdc357c5..499185eaf 100644 --- a/drivers/net/phy/micrel.c +++ b/drivers/net/phy/micrel.c @@ -288,9 +288,10 @@ static int kszphy_config_init(struct phy_device *phydev) } static int ksz9021_load_values_from_of(struct phy_device *phydev, - struct device_node *of_node, u16 reg, - char *field1, char *field2, - char *field3, char *field4) + const struct device_node *of_node, + u16 reg, + const char *field1, const char *field2, + const char *field3, const char *field4) { int val1 = -1; int val2 = -2; @@ -336,8 +337,8 @@ static int ksz9021_load_values_from_of(struct phy_device *phydev, static int ksz9021_config_init(struct phy_device *phydev) { - struct device *dev = &phydev->dev; - struct device_node *of_node = dev->of_node; + const struct device *dev = &phydev->dev; + const struct device_node *of_node = dev->of_node; if (!of_node && dev->parent->of_node) of_node = dev->parent->of_node; @@ -365,6 +366,11 @@ static int ksz9021_config_init(struct phy_device *phydev) #define KSZ9031_PS_TO_REG 60 /* Extended registers */ +/* MMD Address 0x0 */ +#define MII_KSZ9031RN_FLP_BURST_TX_LO 3 +#define MII_KSZ9031RN_FLP_BURST_TX_HI 4 + +/* MMD Address 0x2 */ #define MII_KSZ9031RN_CONTROL_PAD_SKEW 4 #define MII_KSZ9031RN_RX_DATA_PAD_SKEW 5 #define MII_KSZ9031RN_TX_DATA_PAD_SKEW 6 @@ -389,9 +395,9 @@ static int ksz9031_extended_read(struct phy_device *phydev, } static int ksz9031_of_load_skew_values(struct phy_device *phydev, - struct device_node *of_node, + const struct device_node *of_node, u16 reg, size_t field_sz, - char *field[], u8 numfields) + const char *field[], u8 numfields) { int val[4] = {-1, -2, -3, -4}; int matches = 0; @@ -425,20 +431,36 @@ static int ksz9031_of_load_skew_values(struct phy_device *phydev, return ksz9031_extended_write(phydev, OP_DATA, 2, reg, newval); } +static int ksz9031_center_flp_timing(struct phy_device *phydev) +{ + int result; + + /* Center KSZ9031RNX FLP timing at 16ms. */ + result = ksz9031_extended_write(phydev, OP_DATA, 0, + MII_KSZ9031RN_FLP_BURST_TX_HI, 0x0006); + result = ksz9031_extended_write(phydev, OP_DATA, 0, + MII_KSZ9031RN_FLP_BURST_TX_LO, 0x1A80); + + if (result) + return result; + + return genphy_restart_aneg(phydev); +} + static int ksz9031_config_init(struct phy_device *phydev) { - struct device *dev = &phydev->dev; - struct device_node *of_node = dev->of_node; - char *clk_skews[2] = {"rxc-skew-ps", "txc-skew-ps"}; - char *rx_data_skews[4] = { + const struct device *dev = &phydev->dev; + const struct device_node *of_node = dev->of_node; + static const char *clk_skews[2] = {"rxc-skew-ps", "txc-skew-ps"}; + static const char *rx_data_skews[4] = { "rxd0-skew-ps", "rxd1-skew-ps", "rxd2-skew-ps", "rxd3-skew-ps" }; - char *tx_data_skews[4] = { + static const char *tx_data_skews[4] = { "txd0-skew-ps", "txd1-skew-ps", "txd2-skew-ps", "txd3-skew-ps" }; - char *control_skews[2] = {"txen-skew-ps", "rxdv-skew-ps"}; + static const char *control_skews[2] = {"txen-skew-ps", "rxdv-skew-ps"}; if (!of_node && dev->parent->of_node) of_node = dev->parent->of_node; @@ -460,7 +482,8 @@ static int ksz9031_config_init(struct phy_device *phydev) MII_KSZ9031RN_TX_DATA_PAD_SKEW, 4, tx_data_skews, 4); } - return 0; + + return ksz9031_center_flp_timing(phydev); } #define KSZ8873MLL_GLOBAL_CONTROL_4 0x06 @@ -519,7 +542,7 @@ ksz9021_wr_mmd_phyreg(struct phy_device *phydev, int ptrad, int devnum, static int kszphy_probe(struct phy_device *phydev) { const struct kszphy_type *type = phydev->drv->driver_data; - struct device_node *np = phydev->dev.of_node; + const struct device_node *np = phydev->dev.of_node; struct kszphy_priv *priv; struct clk *clk; int ret; |