TRM [1] mentions that we need to power up PCIESS_PHY_TX and PCIESS_PHY_RX before configuring PCIe_PHY_RX SCP settings.
See "Table 26-81. PCIePHY Subsystem Low-Level Programming Sequence". [1] DRA75x, DRA74x TRM - http://www.ti.com/lit/ug/sprui30f/sprui30f.pdf Signed-off-by: Roger Quadros <[email protected]> --- drivers/phy/ti/phy-ti-pipe3.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/phy/ti/phy-ti-pipe3.c b/drivers/phy/ti/phy-ti-pipe3.c index 71a7634c026d..1718ef36d290 100644 --- a/drivers/phy/ti/phy-ti-pipe3.c +++ b/drivers/phy/ti/phy-ti-pipe3.c @@ -341,6 +341,8 @@ static int ti_pipe3_power_off(struct phy *x) return ret; } +static void ti_pipe3_calibrate(struct ti_pipe3 *phy); + static int ti_pipe3_power_on(struct phy *x) { u32 val; @@ -386,6 +388,9 @@ static int ti_pipe3_power_on(struct phy *x) mask, val); } + if (phy->mode == PIPE3_MODE_PCIE) + ti_pipe3_calibrate(phy); + return 0; } @@ -520,12 +525,7 @@ static int ti_pipe3_init(struct phy *x) val = 0x96 << OMAP_CTRL_PCIE_PCS_DELAY_COUNT_SHIFT; ret = regmap_update_bits(phy->pcs_syscon, phy->pcie_pcs_reg, PCIE_PCS_MASK, val); - if (ret) - return ret; - - ti_pipe3_calibrate(phy); - - return 0; + return ret; } /* Bring it out of IDLE if it is IDLE */ -- Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki
