[PATCH 2/2] phy: qcom: qmp-pcie: Add X1E80100 Gen4 4-lane mode support

Abel Vesa
2024-05-31T16:06:58Z

The PCIe 6th instance from X1E80100 can be used in both 4-lane mode or
2-lane mode. Add the configuration and compatible for the 4-lane mode.

Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
---
drivers/phy/qualcomm/phy-qcom-qmp-pcie.c | 42 ++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
index 6c796723c8f5..4e0b28da69a7 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
@@ -1028,6 +1028,10 @@ static const struct qmp_phy_init_tbl x1e80100_qmp_gen4x2_pcie_ln_shrd_tbl[] = {
QMP_PHY_INIT_CFG(QSERDES_V6_LN_SHRD_RX_MARG_COARSE_THRESH6_RATE3, 0x1f),
};

+static const struct qmp_phy_init_tbl x1e80100_qmp_gen4x4_pcie_serdes_4ln_tbl[] = {
+ QMP_PHY_INIT_CFG(QSERDES_V6_COM_PLL_BIAS_EN_CLK_BUFLR_EN, 0x1c),
+};
+
static const struct qmp_phy_init_tbl x1e80100_qmp_gen4x2_pcie_tx_tbl[] = {
QMP_PHY_INIT_CFG(QSERDES_V6_20_TX_RES_CODE_LANE_OFFSET_TX, 0x1d),
QMP_PHY_INIT_CFG(QSERDES_V6_20_TX_RES_CODE_LANE_OFFSET_RX, 0x03),
@@ -3342,6 +3346,41 @@ static const struct qmp_phy_cfg x1e80100_qmp_gen4x2_pciephy_cfg = {
.ln_shrd = x1e80100_qmp_gen4x2_pcie_ln_shrd_tbl,
.ln_shrd_num = ARRAY_SIZE(x1e80100_qmp_gen4x2_pcie_ln_shrd_tbl),
},
+
+ .reset_list = sdm845_pciephy_reset_l,
+ .num_resets = ARRAY_SIZE(sdm845_pciephy_reset_l),
+ .vreg_list = sm8550_qmp_phy_vreg_l,
+ .num_vregs = ARRAY_SIZE(sm8550_qmp_phy_vreg_l),
+ .regs = pciephy_v6_regs_layout,
+
+ .pwrdn_ctrl = SW_PWRDN | REFCLK_DRV_DSBL,
+ .phy_status = PHYSTATUS_4_20,
+ .has_nocsr_reset = true,
+};
+
+static const struct qmp_phy_cfg x1e80100_qmp_gen4x4_pciephy_cfg = {
+ .lanes = 4,
+
+ .offsets = &qmp_pcie_offsets_v6_20,
+
+ .tbls = {
+ .serdes = x1e80100_qmp_gen4x2_pcie_serdes_tbl,
+ .serdes_num = ARRAY_SIZE(x1e80100_qmp_gen4x2_pcie_serdes_tbl),
+ .tx = x1e80100_qmp_gen4x2_pcie_tx_tbl,
+ .tx_num = ARRAY_SIZE(x1e80100_qmp_gen4x2_pcie_tx_tbl),
+ .rx = x1e80100_qmp_gen4x2_pcie_rx_tbl,
+ .rx_num = ARRAY_SIZE(x1e80100_qmp_gen4x2_pcie_rx_tbl),
+ .pcs = x1e80100_qmp_gen4x2_pcie_pcs_tbl,
+ .pcs_num = ARRAY_SIZE(x1e80100_qmp_gen4x2_pcie_pcs_tbl),
+ .pcs_misc = x1e80100_qmp_gen4x2_pcie_pcs_misc_tbl,
+ .pcs_misc_num = ARRAY_SIZE(x1e80100_qmp_gen4x2_pcie_pcs_misc_tbl),
+ .ln_shrd = x1e80100_qmp_gen4x2_pcie_ln_shrd_tbl,
+ .ln_shrd_num = ARRAY_SIZE(x1e80100_qmp_gen4x2_pcie_ln_shrd_tbl),
+ },
+
+ .serdes_4ln_tbl = x1e80100_qmp_gen4x4_pcie_serdes_4ln_tbl,
+ .serdes_4ln_num = ARRAY_SIZE(x1e80100_qmp_gen4x4_pcie_serdes_4ln_tbl),
+
.reset_list = sdm845_pciephy_reset_l,
.num_resets = ARRAY_SIZE(sdm845_pciephy_reset_l),
.vreg_list = sm8550_qmp_phy_vreg_l,
@@ -4108,6 +4147,9 @@ static const struct of_device_id qmp_pcie_of_match_table[] = {
}, {
.compatible = "qcom,x1e80100-qmp-gen4x2-pcie-phy",
.data = &x1e80100_qmp_gen4x2_pciephy_cfg,
+ }, {
+ .compatible = "qcom,x1e80100-qmp-gen4x4-pcie-phy",
+ .data = &x1e80100_qmp_gen4x4_pciephy_cfg,
},
{ },
};

--
2.34.1