phy: qcom-qmp-pcie: Support SM8450 PCIe1 PHY in EP mode

Add support for using PCIe1 (gen4x2) in EP mode on SM8450. The tables to
program are mostly common with the RC mode tables, so only register
difference are split into separate RC and EP tables.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20220927092207.161501-4-dmitry.baryshkov@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>

1 files changed, 63 insertions, 15 deletions

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
index ba01338d93ac..f3f75eda01a6 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
@@ -1185,15 +1185,29 @@ static const struct qmp_phy_init_tbl sm8450_qmp_gen3x1_pcie_pcs_misc_tbl[] = {
 };
 
 static const struct qmp_phy_init_tbl sm8450_qmp_gen4x2_pcie_serdes_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_BIAS_EN_CLKBUFLR_EN, 0x14),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_PLL_IVCO, 0x0f),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_LOCK_CMP_EN, 0x46),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_LOCK_CMP_CFG, 0x04),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_VCO_TUNE_MAP, 0x02),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_HSCLK_SEL, 0x12),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_HSCLK_HS_SWITCH_SEL, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CORECLK_DIV_MODE0, 0x0a),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CORECLK_DIV_MODE1, 0x04),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CMN_MISC1, 0x88),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CMN_CONFIG, 0x06),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CMN_MODE, 0x14),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_VCO_DC_LEVEL_CTRL, 0x0f),
+};
+
+static const struct qmp_phy_init_tbl sm8450_qmp_gen4x2_pcie_rc_serdes_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_SSC_PER1, 0x31),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_SSC_PER2, 0x01),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_SSC_STEP_SIZE1_MODE0, 0xde),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_SSC_STEP_SIZE2_MODE0, 0x07),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_SSC_STEP_SIZE1_MODE1, 0x97),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_SSC_STEP_SIZE2_MODE1, 0x0c),
-	QMP_PHY_INIT_CFG(QSERDES_V5_COM_BIAS_EN_CLKBUFLR_EN, 0x14),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CLK_ENABLE1, 0x90),
-	QMP_PHY_INIT_CFG(QSERDES_V5_COM_PLL_IVCO, 0x0f),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CP_CTRL_MODE0, 0x06),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CP_CTRL_MODE1, 0x06),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_PLL_RCTRL_MODE0, 0x16),
@@ -1201,8 +1215,6 @@ static const struct qmp_phy_init_tbl sm8450_qmp_gen4x2_pcie_serdes_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_PLL_CCTRL_MODE0, 0x36),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_PLL_CCTRL_MODE1, 0x36),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_SYSCLK_EN_SEL, 0x08),
-	QMP_PHY_INIT_CFG(QSERDES_V5_COM_LOCK_CMP_EN, 0x46),
-	QMP_PHY_INIT_CFG(QSERDES_V5_COM_LOCK_CMP_CFG, 0x04),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_LOCK_CMP1_MODE0, 0x0a),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_LOCK_CMP2_MODE0, 0x1a),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_LOCK_CMP1_MODE1, 0x14),
@@ -1215,17 +1227,8 @@ static const struct qmp_phy_init_tbl sm8450_qmp_gen4x2_pcie_serdes_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_DIV_FRAC_START1_MODE1, 0x55),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_DIV_FRAC_START2_MODE1, 0x55),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_DIV_FRAC_START3_MODE1, 0x05),
-	QMP_PHY_INIT_CFG(QSERDES_V5_COM_VCO_TUNE_MAP, 0x02),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CLK_SELECT, 0x34),
-	QMP_PHY_INIT_CFG(QSERDES_V5_COM_HSCLK_SEL, 0x12),
-	QMP_PHY_INIT_CFG(QSERDES_V5_COM_HSCLK_HS_SWITCH_SEL, 0x00),
-	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CORECLK_DIV_MODE0, 0x0a),
-	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CORECLK_DIV_MODE1, 0x04),
-	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CMN_MISC1, 0x88),
 	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CORE_CLK_EN, 0x20),
-	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CMN_CONFIG, 0x06),
-	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CMN_MODE, 0x14),
-	QMP_PHY_INIT_CFG(QSERDES_V5_COM_VCO_DC_LEVEL_CTRL, 0x0f),
 };
 
 static const struct qmp_phy_init_tbl sm8450_qmp_gen4x2_pcie_tx_tbl[] = {
@@ -1293,14 +1296,44 @@ static const struct qmp_phy_init_tbl sm8450_qmp_gen4x2_pcie_pcs_tbl[] = {
 };
 
 static const struct qmp_phy_init_tbl sm8450_qmp_gen4x2_pcie_pcs_misc_tbl[] = {
-	QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_PCIE_ENDPOINT_REFCLK_DRIVE, 0xc1),
-	QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_PCIE_OSC_DTCT_ACTIONS, 0x00),
 	QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_PCIE_G4_EQ_CONFIG5, 0x02),
 	QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_PCIE_EQ_CONFIG1, 0x16),
 	QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_PCIE_RX_MARGINING_CONFIG3, 0x28),
 	QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_PCIE_G4_PRE_GAIN, 0x2e),
 };
 
+static const struct qmp_phy_init_tbl sm8450_qmp_gen4x2_pcie_rc_pcs_misc_tbl[] = {
+	QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_PCIE_ENDPOINT_REFCLK_DRIVE, 0xc1),
+	QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_PCIE_OSC_DTCT_ACTIONS, 0x00),
+};
+
+static const struct qmp_phy_init_tbl sm8450_qmp_gen4x2_pcie_ep_serdes_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_BG_TIMER, 0x02),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_SYS_CLK_CTRL, 0x07),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CP_CTRL_MODE0, 0x27),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CP_CTRL_MODE1, 0x0a),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_PLL_RCTRL_MODE0, 0x17),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_PLL_RCTRL_MODE1, 0x19),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_PLL_CCTRL_MODE0, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_PLL_CCTRL_MODE1, 0x03),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_SYSCLK_EN_SEL, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_LOCK_CMP1_MODE0, 0xff),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_LOCK_CMP2_MODE0, 0x04),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_LOCK_CMP1_MODE1, 0xff),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_LOCK_CMP2_MODE1, 0x09),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_DEC_START_MODE0, 0x19),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_DEC_START_MODE1, 0x28),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_INTEGLOOP_GAIN0_MODE0, 0xfb),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_INTEGLOOP_GAIN1_MODE0, 0x01),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_INTEGLOOP_GAIN0_MODE1, 0xfb),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_INTEGLOOP_GAIN1_MODE1, 0x01),
+	QMP_PHY_INIT_CFG(QSERDES_V5_COM_CORE_CLK_EN, 0x60),
+};
+
+static const struct qmp_phy_init_tbl sm8450_qmp_gen4x2_pcie_ep_pcs_misc_tbl[] = {
+	QMP_PHY_INIT_CFG(QPHY_V5_20_PCS_PCIE_OSC_DTCT_MODE2_CONFIG5, 0x08),
+};
+
 struct qmp_phy_cfg_tables {
 	const struct qmp_phy_init_tbl *serdes;
 	int serdes_num;
@@ -1836,6 +1869,21 @@ static const struct qmp_phy_cfg sm8450_qmp_gen4x2_pciephy_cfg = {
 		.pcs_misc	= sm8450_qmp_gen4x2_pcie_pcs_misc_tbl,
 		.pcs_misc_num	= ARRAY_SIZE(sm8450_qmp_gen4x2_pcie_pcs_misc_tbl),
 	},
+
+	.tables_rc = &(const struct qmp_phy_cfg_tables) {
+		.serdes		= sm8450_qmp_gen4x2_pcie_rc_serdes_tbl,
+		.serdes_num	= ARRAY_SIZE(sm8450_qmp_gen4x2_pcie_rc_serdes_tbl),
+		.pcs_misc	= sm8450_qmp_gen4x2_pcie_rc_pcs_misc_tbl,
+		.pcs_misc_num	= ARRAY_SIZE(sm8450_qmp_gen4x2_pcie_rc_pcs_misc_tbl),
+	},
+
+	.tables_ep = &(const struct qmp_phy_cfg_tables) {
+		.serdes		= sm8450_qmp_gen4x2_pcie_ep_serdes_tbl,
+		.serdes_num	= ARRAY_SIZE(sm8450_qmp_gen4x2_pcie_ep_serdes_tbl),
+		.pcs_misc	= sm8450_qmp_gen4x2_pcie_ep_pcs_misc_tbl,
+		.pcs_misc_num	= ARRAY_SIZE(sm8450_qmp_gen4x2_pcie_ep_pcs_misc_tbl),
+	},
+
 	.clk_list		= sdm845_pciephy_clk_l,
 	.num_clks		= ARRAY_SIZE(sdm845_pciephy_clk_l),
 	.reset_list		= sdm845_pciephy_reset_l,