From: Frank Wunderlich frank-w@public-files.de
add support for PHY_TYPE_SATA to Mediateks TPHY driver
Signed-off-by: Frank Wunderlich frank-w@public-files.de Reviewed-by: Chunfeng Yun chunfeng.yun@mediatek.com --- drivers/phy/phy-mtk-tphy.c | 105 +++++++++++++++++++++++++++++++++++++ 1 file changed, 105 insertions(+)
diff --git a/drivers/phy/phy-mtk-tphy.c b/drivers/phy/phy-mtk-tphy.c index 1e65c24356..326227a30d 100644 --- a/drivers/phy/phy-mtk-tphy.c +++ b/drivers/phy/phy-mtk-tphy.c @@ -175,6 +175,65 @@ #define XC3_RG_U3_XTAL_RX_PWD BIT(9) #define XC3_RG_U3_FRC_XTAL_RX_PWD BIT(8)
+/* SATA register setting */ +#define PHYD_CTRL_SIGNAL_MODE4 0x1c +/* CDR Charge Pump P-path current adjustment */ +#define RG_CDR_BICLTD1_GEN1_MSK GENMASK(23, 20) +#define RG_CDR_BICLTD1_GEN1_VAL(x) ((0xf & (x)) << 20) +#define RG_CDR_BICLTD0_GEN1_MSK GENMASK(11, 8) +#define RG_CDR_BICLTD0_GEN1_VAL(x) ((0xf & (x)) << 8) + +#define PHYD_DESIGN_OPTION2 0x24 +/* Symbol lock count selection */ +#define RG_LOCK_CNT_SEL_MSK GENMASK(5, 4) +#define RG_LOCK_CNT_SEL_VAL(x) ((0x3 & (x)) << 4) + +#define PHYD_DESIGN_OPTION9 0x40 +/* COMWAK GAP width window */ +#define RG_TG_MAX_MSK GENMASK(20, 16) +#define RG_TG_MAX_VAL(x) ((0x1f & (x)) << 16) +/* COMINIT GAP width window */ +#define RG_T2_MAX_MSK GENMASK(13, 8) +#define RG_T2_MAX_VAL(x) ((0x3f & (x)) << 8) +/* COMWAK GAP width window */ +#define RG_TG_MIN_MSK GENMASK(7, 5) +#define RG_TG_MIN_VAL(x) ((0x7 & (x)) << 5) +/* COMINIT GAP width window */ +#define RG_T2_MIN_MSK GENMASK(4, 0) +#define RG_T2_MIN_VAL(x) (0x1f & (x)) + +#define ANA_RG_CTRL_SIGNAL1 0x4c +/* TX driver tail current control for 0dB de-empahsis mdoe for Gen1 speed */ +#define RG_IDRV_0DB_GEN1_MSK GENMASK(13, 8) +#define RG_IDRV_0DB_GEN1_VAL(x) ((0x3f & (x)) << 8) + +#define ANA_RG_CTRL_SIGNAL4 0x58 +#define RG_CDR_BICLTR_GEN1_MSK GENMASK(23, 20) +#define RG_CDR_BICLTR_GEN1_VAL(x) ((0xf & (x)) << 20) +/* Loop filter R1 resistance adjustment for Gen1 speed */ +#define RG_CDR_BR_GEN2_MSK GENMASK(10, 8) +#define RG_CDR_BR_GEN2_VAL(x) ((0x7 & (x)) << 8) + +#define ANA_RG_CTRL_SIGNAL6 0x60 +/* I-path capacitance adjustment for Gen1 */ +#define RG_CDR_BC_GEN1_MSK GENMASK(28, 24) +#define RG_CDR_BC_GEN1_VAL(x) ((0x1f & (x)) << 24) +#define RG_CDR_BIRLTR_GEN1_MSK GENMASK(4, 0) +#define RG_CDR_BIRLTR_GEN1_VAL(x) (0x1f & (x)) + +#define ANA_EQ_EYE_CTRL_SIGNAL1 0x6c +/* RX Gen1 LEQ tuning step */ +#define RG_EQ_DLEQ_LFI_GEN1_MSK GENMASK(11, 8) +#define RG_EQ_DLEQ_LFI_GEN1_VAL(x) ((0xf & (x)) << 8) + +#define ANA_EQ_EYE_CTRL_SIGNAL4 0xd8 +#define RG_CDR_BIRLTD0_GEN1_MSK GENMASK(20, 16) +#define RG_CDR_BIRLTD0_GEN1_VAL(x) ((0x1f & (x)) << 16) + +#define ANA_EQ_EYE_CTRL_SIGNAL5 0xdc +#define RG_CDR_BIRLTD0_GEN3_MSK GENMASK(4, 0) +#define RG_CDR_BIRLTD0_GEN3_VAL(x) (0x1f & (x)) + enum mtk_phy_version { MTK_TPHY_V1 = 1, MTK_TPHY_V2, @@ -372,6 +431,45 @@ static void pcie_phy_instance_init(struct mtk_tphy *tphy, udelay(3000); }
+static void sata_phy_instance_init(struct mtk_tphy *tphy, + struct mtk_phy_instance *instance) +{ + struct u3phy_banks *u3_banks = &instance->u3_banks; + + clrsetbits_le32(u3_banks->phyd + ANA_RG_CTRL_SIGNAL6, + RG_CDR_BIRLTR_GEN1_MSK | RG_CDR_BC_GEN1_MSK, + RG_CDR_BIRLTR_GEN1_VAL(0x6) | + RG_CDR_BC_GEN1_VAL(0x1a)); + clrsetbits_le32(u3_banks->phyd + ANA_EQ_EYE_CTRL_SIGNAL4, + RG_CDR_BIRLTD0_GEN1_MSK, + RG_CDR_BIRLTD0_GEN1_VAL(0x18)); + clrsetbits_le32(u3_banks->phyd + ANA_EQ_EYE_CTRL_SIGNAL5, + RG_CDR_BIRLTD0_GEN3_MSK, + RG_CDR_BIRLTD0_GEN3_VAL(0x06)); + clrsetbits_le32(u3_banks->phyd + ANA_RG_CTRL_SIGNAL4, + RG_CDR_BICLTR_GEN1_MSK | RG_CDR_BR_GEN2_MSK, + RG_CDR_BICLTR_GEN1_VAL(0x0c) | + RG_CDR_BR_GEN2_VAL(0x07)); + clrsetbits_le32(u3_banks->phyd + PHYD_CTRL_SIGNAL_MODE4, + RG_CDR_BICLTD0_GEN1_MSK | RG_CDR_BICLTD1_GEN1_MSK, + RG_CDR_BICLTD0_GEN1_VAL(0x08) | + RG_CDR_BICLTD1_GEN1_VAL(0x02)); + clrsetbits_le32(u3_banks->phyd + PHYD_DESIGN_OPTION2, + RG_LOCK_CNT_SEL_MSK, + RG_LOCK_CNT_SEL_VAL(0x02)); + clrsetbits_le32(u3_banks->phyd + PHYD_DESIGN_OPTION9, + RG_T2_MIN_MSK | RG_TG_MIN_MSK | + RG_T2_MAX_MSK | RG_TG_MAX_MSK, + RG_T2_MIN_VAL(0x12) | RG_TG_MIN_VAL(0x04) | + RG_T2_MAX_VAL(0x31) | RG_TG_MAX_VAL(0x0e)); + clrsetbits_le32(u3_banks->phyd + ANA_RG_CTRL_SIGNAL1, + RG_IDRV_0DB_GEN1_MSK, + RG_IDRV_0DB_GEN1_VAL(0x20)); + clrsetbits_le32(u3_banks->phyd + ANA_EQ_EYE_CTRL_SIGNAL1, + RG_EQ_DLEQ_LFI_GEN1_MSK, + RG_EQ_DLEQ_LFI_GEN1_VAL(0x03)); +} + static void pcie_phy_instance_power_on(struct mtk_tphy *tphy, struct mtk_phy_instance *instance) { @@ -414,6 +512,9 @@ static void phy_v1_banks_init(struct mtk_tphy *tphy, u3_banks->phyd = instance->port_base + SSUSB_SIFSLV_V1_U3PHYD; u3_banks->phya = instance->port_base + SSUSB_SIFSLV_V1_U3PHYA; break; + case PHY_TYPE_SATA: + u3_banks->phyd = instance->port_base + SSUSB_SIFSLV_V1_U3PHYD; + break; default: dev_err(tphy->dev, "incompatible PHY type\n"); return; @@ -474,6 +575,9 @@ static int mtk_phy_init(struct phy *phy) case PHY_TYPE_PCIE: pcie_phy_instance_init(tphy, instance); break; + case PHY_TYPE_SATA: + sata_phy_instance_init(tphy, instance); + break; default: dev_err(tphy->dev, "incompatible PHY type\n"); return -EINVAL; @@ -552,6 +656,7 @@ static int mtk_phy_xlate(struct phy *phy, instance->type = args->args[1]; if (!(instance->type == PHY_TYPE_USB2 || instance->type == PHY_TYPE_USB3 || + instance->type == PHY_TYPE_SATA || instance->type == PHY_TYPE_PCIE)) { dev_err(phy->dev, "unsupported device type\n"); return -EINVAL;