diff options
Diffstat (limited to 'drivers/net/dsa/microchip/ksz_common.c')
| -rw-r--r-- | drivers/net/dsa/microchip/ksz_common.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c index bcf61f815e11..39b83b4d02ed 100644 --- a/drivers/net/dsa/microchip/ksz_common.c +++ b/drivers/net/dsa/microchip/ksz_common.c @@ -292,6 +292,10 @@ static const u8 ksz8795_xmii_ctrl0[] = { }; static const u8 ksz8795_xmii_ctrl1[] = { + [P_RGMII_SEL] = 3, + [P_GMII_SEL] = 2, + [P_RMII_SEL] = 1, + [P_MII_SEL] = 0, [P_GMII_1GBIT] = 1, [P_GMII_NOT_1GBIT] = 0, }; @@ -389,6 +393,10 @@ static const u8 ksz9477_xmii_ctrl0[] = { }; static const u8 ksz9477_xmii_ctrl1[] = { + [P_RGMII_SEL] = 0, + [P_RMII_SEL] = 1, + [P_GMII_SEL] = 2, + [P_MII_SEL] = 3, [P_GMII_1GBIT] = 0, [P_GMII_NOT_1GBIT] = 1, }; @@ -1400,6 +1408,42 @@ static int ksz_max_mtu(struct dsa_switch *ds, int port) return dev->dev_ops->max_mtu(dev, port); } +void ksz_set_xmii(struct ksz_device *dev, int port, phy_interface_t interface) +{ + const u8 *bitval = dev->info->xmii_ctrl1; + const u16 *regs = dev->info->regs; + u8 data8; + + ksz_pread8(dev, port, regs[P_XMII_CTRL_1], &data8); + + data8 &= ~P_MII_SEL_M; + + switch (interface) { + case PHY_INTERFACE_MODE_MII: + data8 |= bitval[P_MII_SEL]; + break; + case PHY_INTERFACE_MODE_RMII: + data8 |= bitval[P_RMII_SEL]; + break; + case PHY_INTERFACE_MODE_GMII: + data8 |= bitval[P_GMII_SEL]; + break; + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_TXID: + case PHY_INTERFACE_MODE_RGMII_RXID: + data8 |= bitval[P_RGMII_SEL]; + break; + default: + dev_err(dev->dev, "Unsupported interface '%s' for port %d\n", + phy_modes(interface), port); + return; + } + + /* Write the updated value */ + ksz_pwrite8(dev, port, regs[P_XMII_CTRL_1], data8); +} + static void ksz_phylink_mac_config(struct dsa_switch *ds, int port, unsigned int mode, const struct phylink_link_state *state) |