diff options
| author | Marek Behún <marek.behun@nic.cz> | 2018-04-24 17:21:24 +0200 |
|---|---|---|
| committer | Stefan Roese <sr@denx.de> | 2018-05-14 10:00:15 +0200 |
| commit | 7288182aa6c11e4b0b2783cd4c7762f93f12cb64 (patch) | |
| tree | df5b8db97170a612024626fbf3eae42030591384 /drivers/phy | |
| parent | 22f418935be4f5c6de26d2563a61d68136d80586 (diff) | |
phy: marvell: a3700: Save/restore selector reg in SGMII init
In SGMII initialization PIN_PIPE_SEL has to be zero when resetting
the PHY. Since comphy_mux already set the selector register to
correct values, we have to store it's value before setting it to 0
and restore it after SGMII init.
Signed-off-by: Marek Behun <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Stefan Roese <sr@denx.de>
Diffstat (limited to 'drivers/phy')
| -rw-r--r-- | drivers/phy/marvell/comphy_a3700.c | 9 | ||||
| -rw-r--r-- | drivers/phy/marvell/comphy_a3700.h | 1 |
2 files changed, 8 insertions, 2 deletions
diff --git a/drivers/phy/marvell/comphy_a3700.c b/drivers/phy/marvell/comphy_a3700.c index bf68f5d6be..50167a69af 100644 --- a/drivers/phy/marvell/comphy_a3700.c +++ b/drivers/phy/marvell/comphy_a3700.c @@ -697,13 +697,15 @@ static void comphy_sgmii_phy_init(u32 lane, u32 speed) static int comphy_sgmii_power_up(u32 lane, u32 speed, u32 invert) { int ret; + u32 saved_selector; debug_enter(); /* * 1. Configure PHY to SATA/SAS mode by setting pin PIN_PIPE_SEL=0 */ - reg_set(COMPHY_SEL_ADDR, 0, rf_compy_select(lane)); + saved_selector = readl(COMPHY_SEL_ADDR); + reg_set(COMPHY_SEL_ADDR, 0, 0xFFFFFFFF); /* * 2. Reset PHY by setting PHY input port PIN_RESET=1. @@ -874,6 +876,11 @@ static int comphy_sgmii_power_up(u32 lane, u32 speed, u32 invert) if (!ret) printf("Failed to init RX of SGMII PHY %d\n", lane); + /* + * Restore saved selector. + */ + reg_set(COMPHY_SEL_ADDR, saved_selector, 0xFFFFFFFF); + debug_exit(); return ret; diff --git a/drivers/phy/marvell/comphy_a3700.h b/drivers/phy/marvell/comphy_a3700.h index 0f0138dc97..a14767d809 100644 --- a/drivers/phy/marvell/comphy_a3700.h +++ b/drivers/phy/marvell/comphy_a3700.h @@ -22,7 +22,6 @@ * COMPHY SB definitions */ #define COMPHY_SEL_ADDR MVEBU_REG(0x0183FC) -#define rf_compy_select(lane) (0x1 << (((lane) == 1) ? 4 : 0)) #define COMPHY_PHY_CFG1_ADDR(lane) MVEBU_REG(0x018300 + (1 - lane) * 0x28) #define rb_pin_pu_iveref BIT(1) |