diff options
Diffstat (limited to 'drivers/net/phy/mscc.c')
| -rw-r--r-- | drivers/net/phy/mscc.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/drivers/net/phy/mscc.c b/drivers/net/phy/mscc.c index c09cc4a3d166..d350debd174a 100644 --- a/drivers/net/phy/mscc.c +++ b/drivers/net/phy/mscc.c @@ -23,6 +23,16 @@ enum rgmii_rx_clock_delay { RGMII_RX_CLK_DELAY_3_4_NS = 7 }; +/* Microsemi VSC85xx PHY registers */ +/* IEEE 802. Std Registers */ +#define MSCC_PHY_EXT_PHY_CNTL_1 23 +#define MAC_IF_SELECTION_MASK 0x1800 +#define MAC_IF_SELECTION_GMII 0 +#define MAC_IF_SELECTION_RMII 1 +#define MAC_IF_SELECTION_RGMII 2 +#define MAC_IF_SELECTION_POS 11 +#define FAR_END_LOOPBACK_MODE_MASK 0x0008 + #define MII_VSC85XX_INT_MASK 25 #define MII_VSC85XX_INT_MASK_MASK 0xa000 #define MII_VSC85XX_INT_STATUS 26 @@ -48,6 +58,42 @@ static int vsc85xx_phy_page_set(struct phy_device *phydev, u8 page) return rc; } +static int vsc85xx_mac_if_set(struct phy_device *phydev, + phy_interface_t interface) +{ + int rc; + u16 reg_val; + + mutex_lock(&phydev->lock); + reg_val = phy_read(phydev, MSCC_PHY_EXT_PHY_CNTL_1); + reg_val &= ~(MAC_IF_SELECTION_MASK); + switch (interface) { + case PHY_INTERFACE_MODE_RGMII: + reg_val |= (MAC_IF_SELECTION_RGMII << MAC_IF_SELECTION_POS); + break; + case PHY_INTERFACE_MODE_RMII: + reg_val |= (MAC_IF_SELECTION_RMII << MAC_IF_SELECTION_POS); + break; + case PHY_INTERFACE_MODE_MII: + case PHY_INTERFACE_MODE_GMII: + reg_val |= (MAC_IF_SELECTION_GMII << MAC_IF_SELECTION_POS); + break; + default: + rc = -EINVAL; + goto out_unlock; + } + rc = phy_write(phydev, MSCC_PHY_EXT_PHY_CNTL_1, reg_val); + if (rc != 0) + goto out_unlock; + + rc = genphy_soft_reset(phydev); + +out_unlock: + mutex_unlock(&phydev->lock); + + return rc; +} + static int vsc85xx_default_config(struct phy_device *phydev) { int rc; @@ -77,6 +123,11 @@ static int vsc85xx_config_init(struct phy_device *phydev) rc = vsc85xx_default_config(phydev); if (rc) return rc; + + rc = vsc85xx_mac_if_set(phydev, phydev->interface); + if (rc) + return rc; + rc = genphy_config_init(phydev); return rc; |