diff options
Diffstat (limited to 'drivers/phy/cadence/phy-cadence-salvo.c')
-rw-r--r-- | drivers/phy/cadence/phy-cadence-salvo.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/drivers/phy/cadence/phy-cadence-salvo.c b/drivers/phy/cadence/phy-cadence-salvo.c index 5633fd21ae7d..083de7190819 100644 --- a/drivers/phy/cadence/phy-cadence-salvo.c +++ b/drivers/phy/cadence/phy-cadence-salvo.c @@ -92,6 +92,7 @@ /* USB2 PHY register definition */ #define UTMI_REG15 0xaf #define UTMI_AFE_RX_REG5 0x12 +#define UTMI_AFE_BC_REG4 0x29 /* TB_ADDR_TX_RCVDETSC_CTRL */ #define RXDET_IN_P3_32KHZ BIT(0) @@ -105,6 +106,9 @@ /* 0us, txvalid is ready just after HS/FS transmitters have powered up */ #define TXVALID_GATE_THRESHOLD_HS_0US (BIT(4) | BIT(5)) +#define SET_B_SESSION_VALID (BIT(6) | BIT(5)) +#define CLR_B_SESSION_VALID (BIT(6)) + struct cdns_reg_pairs { u16 val; u32 off; @@ -124,6 +128,13 @@ struct cdns_salvo_phy { }; static const struct of_device_id cdns_salvo_phy_of_match[]; +static const struct cdns_salvo_data cdns_nxp_salvo_data; + +static bool cdns_is_nxp_phy(struct cdns_salvo_phy *salvo_phy) +{ + return salvo_phy->data == &cdns_nxp_salvo_data; +} + static u16 cdns_salvo_read(struct cdns_salvo_phy *salvo_phy, u32 offset, u32 reg) { return (u16)readl(salvo_phy->base + offset + @@ -272,11 +283,29 @@ static int cdns_salvo_phy_power_off(struct phy *phy) return 0; } +static int cdns_salvo_set_mode(struct phy *phy, enum phy_mode mode, int submode) +{ + struct cdns_salvo_phy *salvo_phy = phy_get_drvdata(phy); + + if (!cdns_is_nxp_phy(salvo_phy)) + return 0; + + if (mode == PHY_MODE_USB_DEVICE) + cdns_salvo_write(salvo_phy, USB2_PHY_OFFSET, UTMI_AFE_BC_REG4, + SET_B_SESSION_VALID); + else + cdns_salvo_write(salvo_phy, USB2_PHY_OFFSET, UTMI_AFE_BC_REG4, + CLR_B_SESSION_VALID); + + return 0; +} + static const struct phy_ops cdns_salvo_phy_ops = { .init = cdns_salvo_phy_init, .power_on = cdns_salvo_phy_power_on, .power_off = cdns_salvo_phy_power_off, .owner = THIS_MODULE, + .set_mode = cdns_salvo_set_mode, }; static int cdns_salvo_phy_probe(struct platform_device *pdev) |