diff options
Diffstat (limited to 'drivers/net/sfc/qt202x_phy.c')
| -rw-r--r-- | drivers/net/sfc/qt202x_phy.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/net/sfc/qt202x_phy.c b/drivers/net/sfc/qt202x_phy.c index 68813d1d85f..ea3ae008931 100644 --- a/drivers/net/sfc/qt202x_phy.c +++ b/drivers/net/sfc/qt202x_phy.c @@ -41,6 +41,8 @@ #define PCS_UC_STATUS_LBN 0 #define PCS_UC_STATUS_WIDTH 8 #define PCS_UC_STATUS_FW_SAVE 0x20 +#define PMA_PMD_MODE_REG 0xc301 +#define PMA_PMD_RXIN_SEL_LBN 6 #define PMA_PMD_FTX_CTRL2_REG 0xc309 #define PMA_PMD_FTX_STATIC_LBN 13 #define PMA_PMD_VEND1_REG 0xc001 @@ -282,6 +284,10 @@ static int qt2025c_select_phy_mode(struct efx_nic *efx) * slow) reload of the firmware image (the microcontroller's code * memory is not affected by the microcontroller reset). */ efx_mdio_write(efx, 1, 0xc317, 0x00ff); + /* PMA/PMD loopback sets RXIN to inverse polarity and the firmware + * restart doesn't reset it. We need to do that ourselves. */ + efx_mdio_set_flag(efx, 1, PMA_PMD_MODE_REG, + 1 << PMA_PMD_RXIN_SEL_LBN, false); efx_mdio_write(efx, 1, 0xc300, 0x0002); msleep(20); |