Add PHY ID reading functionality for Amber-Lite NICs. Due to hardware design differences, the process for obtaining the PHY ID on Amber-Lite NICs differs from Sapphire NICs and requires additional delay handling.
Signed-off-by: Zaiyu Wang <[email protected]> --- drivers/net/txgbe/base/txgbe_phy.c | 35 ++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) diff --git a/drivers/net/txgbe/base/txgbe_phy.c b/drivers/net/txgbe/base/txgbe_phy.c index 81e9aee295..bf7260a295 100644 --- a/drivers/net/txgbe/base/txgbe_phy.c +++ b/drivers/net/txgbe/base/txgbe_phy.c @@ -173,6 +173,41 @@ s32 txgbe_get_phy_id(struct txgbe_hw *hw) u32 err; u16 phy_id_high = 0; u16 phy_id_low = 0; + u32 i = 0; + u32 status; + + if (hw->mac.type == txgbe_mac_aml) { + hw->phy.addr = 0; + + for (i = 0; i < 32; i++) { + hw->phy.addr = i; + status = txgbe_read_phy_reg_mdi(hw, TXGBE_MD_PHY_ID_HIGH, 0, &phy_id_high); + if (status) { + DEBUGOUT("txgbe_read_phy_reg_mdi failed 1"); + return status; + } + DEBUGOUT("%d: phy_id_high 0x%x", i, phy_id_high); + if ((phy_id_high & 0xFFFF) == 0x0141) + break; + } + + if (i == 32) { + DEBUGOUT("txgbe_read_phy_reg_mdi failed"); + return TXGBE_ERR_PHY; + } + + status = txgbe_read_phy_reg_mdi(hw, TXGBE_MD_PHY_ID_LOW, 0, &phy_id_low); + if (status) { + DEBUGOUT("txgbe_read_phy_reg_mdi failed 2"); + return status; + } + hw->phy.id = (u32)(phy_id_high & 0xFFFF) << 6; + hw->phy.id |= (u32)((phy_id_low & 0xFC00) >> 10); + + DEBUGOUT("phy_id 0x%x", hw->phy.id); + + return status; + } err = hw->phy.read_reg(hw, TXGBE_MD_PHY_ID_HIGH, TXGBE_MD_DEV_PMA_PMD, -- 2.21.0.windows.1
