There are two QUSB2 PHYs present on sdm845. Update PHY
registers programming for both the PHYs related to
electrical parameters to improve eye diagram.
Signed-off-by: Manu Gautam <mgautam@xxxxxxxxxxxxxx>
---
drivers/phy/qualcomm/phy-qcom-qusb2.c | 39 +++++++++++++++++++++++++++++++++++
1 file changed, 39 insertions(+)
diff --git a/drivers/phy/qualcomm/phy-qcom-qusb2.c b/drivers/phy/qualcomm/phy-qcom-qusb2.c
index 40fdef8..020cbb2 100644
--- a/drivers/phy/qualcomm/phy-qcom-qusb2.c
+++ b/drivers/phy/qualcomm/phy-qcom-qusb2.c
@@ -174,6 +174,27 @@ enum qusb2phy_reg_layout {
QUSB2_PHY_INIT_CFG(QUSB2PHY_CHG_CTRL2, 0x0),
};
+static const struct qusb2_phy_init_tbl sdm845_init_tbl_1[] = {
+ QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_ANALOG_CONTROLS_TWO, 0x03),
+ QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_CLOCK_INVERTERS, 0x7c),
+ QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_CMODE, 0x80),
+ QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_LOCK_DELAY, 0x0a),
+ QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_DIGITAL_TIMERS_TWO, 0x19),
+ QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_BIAS_CONTROL_1, 0x40),
+ QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_BIAS_CONTROL_2, 0x20),
+ QUSB2_PHY_INIT_CFG(QUSB2PHY_PWR_CTRL2, 0x21),
+ QUSB2_PHY_INIT_CFG(QUSB2PHY_IMP_CTRL1, 0x8),
+ QUSB2_PHY_INIT_CFG(QUSB2PHY_IMP_CTRL2, 0x58),
+
+ QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TUNE1, 0x45),
+ QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TUNE2, 0x29),
+ QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TUNE3, 0xca),
+ QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TUNE4, 0x04),
+ QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TUNE5, 0x03),
+
+ QUSB2_PHY_INIT_CFG(QUSB2PHY_CHG_CTRL2, 0x0),
+};
+
struct qusb2_phy_cfg {
const struct qusb2_phy_init_tbl *tbl;
/* number of entries in the table */
@@ -220,6 +241,18 @@ struct qusb2_phy_cfg {
.autoresume_en = BIT(0),
};
+static const struct qusb2_phy_cfg sdm845_phy_cfg_1 = {
+ .tbl = sdm845_init_tbl_1,
+ .tbl_num = ARRAY_SIZE(sdm845_init_tbl_1),
+ .regs = qusb2_v2_regs_layout,
+
+ .disable_ctrl = (PWR_CTRL1_VREF_SUPPLY_TRIM | PWR_CTRL1_CLAMP_N_EN |
+ POWER_DOWN),
+ .mask_core_ready = CORE_READY_STATUS,
+ .has_pll_override = true,
+ .autoresume_en = BIT(0),
+};
+
static const char * const qusb2_phy_vreg_names[] = {
"vdda-pll", "vdda-phy-dpdm",
};
@@ -649,6 +682,12 @@ static int qusb2_phy_exit(struct phy *phy)
}, {
.compatible = "qcom,qusb2-v2-phy",
.data = &qusb2_v2_phy_cfg,
+ }, {
+ .compatible = "qcom,sdm845-qusb2-phy-1",
+ .data = &sdm845_phy_cfg_1,
+ }, {
+ .compatible = "qcom,sdm845-qusb2-phy-2",
+ .data = &qusb2_v2_phy_cfg,
},
{ },
};
--
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