diff options
Diffstat (limited to 'drivers/phy/microchip/sparx5_serdes.c')
| -rw-r--r-- | drivers/phy/microchip/sparx5_serdes.c | 32 |
1 files changed, 31 insertions, 1 deletions
diff --git a/drivers/phy/microchip/sparx5_serdes.c b/drivers/phy/microchip/sparx5_serdes.c index ab1b0986aa67..6ba058b2482f 100644 --- a/drivers/phy/microchip/sparx5_serdes.c +++ b/drivers/phy/microchip/sparx5_serdes.c @@ -26,6 +26,9 @@ #define SPX5_SERDES_10G_START 13 #define SPX5_SERDES_25G_START 25 +/* Optimal power settings from GUC */ +#define SPX5_SERDES_QUIET_MODE_VAL 0x01ef4e0c + enum sparx5_10g28cmu_mode { SPX5_SD10G28_CMU_MAIN = 0, SPX5_SD10G28_CMU_AUX1 = 1, @@ -1899,7 +1902,7 @@ static int sparx5_sd10g28_config(struct sparx5_serdes_macro *macro, bool reset) static int sparx5_serdes_power_save(struct sparx5_serdes_macro *macro, u32 pwdn) { struct sparx5_serdes_private *priv = macro->priv; - void __iomem *sd_inst; + void __iomem *sd_inst, *sd_lane_inst; if (macro->serdestype == SPX5_SDT_6G) sd_inst = sdx5_inst_get(priv, TARGET_SD6G_LANE, macro->stpidx); @@ -1909,12 +1912,36 @@ static int sparx5_serdes_power_save(struct sparx5_serdes_macro *macro, u32 pwdn) sd_inst = sdx5_inst_get(priv, TARGET_SD25G_LANE, macro->stpidx); if (macro->serdestype == SPX5_SDT_25G) { + sd_lane_inst = sdx5_inst_get(priv, TARGET_SD_LANE_25G, + macro->stpidx); + /* Take serdes out of reset */ + sdx5_inst_rmw(SD_LANE_25G_SD_LANE_CFG_EXT_CFG_RST_SET(0), + SD_LANE_25G_SD_LANE_CFG_EXT_CFG_RST, sd_lane_inst, + SD_LANE_25G_SD_LANE_CFG(0)); + + /* Configure optimal settings for quiet mode */ + sdx5_inst_rmw(SD_LANE_25G_QUIET_MODE_6G_QUIET_MODE_SET(SPX5_SERDES_QUIET_MODE_VAL), + SD_LANE_25G_QUIET_MODE_6G_QUIET_MODE, + sd_lane_inst, SD_LANE_25G_QUIET_MODE_6G(0)); + sdx5_inst_rmw(SD25G_LANE_LANE_04_LN_CFG_PD_DRIVER_SET(pwdn), SD25G_LANE_LANE_04_LN_CFG_PD_DRIVER, sd_inst, SD25G_LANE_LANE_04(0)); } else { /* 6G and 10G */ + sd_lane_inst = sdx5_inst_get(priv, TARGET_SD_LANE, macro->sidx); + + /* Take serdes out of reset */ + sdx5_inst_rmw(SD_LANE_SD_LANE_CFG_EXT_CFG_RST_SET(0), + SD_LANE_SD_LANE_CFG_EXT_CFG_RST, sd_lane_inst, + SD_LANE_SD_LANE_CFG(0)); + + /* Configure optimal settings for quiet mode */ + sdx5_inst_rmw(SD_LANE_QUIET_MODE_6G_QUIET_MODE_SET(SPX5_SERDES_QUIET_MODE_VAL), + SD_LANE_QUIET_MODE_6G_QUIET_MODE, sd_lane_inst, + SD_LANE_QUIET_MODE_6G(0)); + sdx5_inst_rmw(SD10G_LANE_LANE_06_CFG_PD_DRIVER_SET(pwdn), SD10G_LANE_LANE_06_CFG_PD_DRIVER, sd_inst, @@ -2308,6 +2335,9 @@ static int sparx5_phy_create(struct sparx5_serdes_private *priv, phy_set_drvdata(*phy, macro); + /* Power off serdes by default */ + sparx5_serdes_power_off(*phy); + return 0; } |