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Signed-off-by: Dmitry Baryshkov --- drivers/phy/qualcomm/phy-qcom-qmp.c | 438 +++++++++++++++------------- 1 file changed, 231 insertions(+), 207 deletions(-) -- 2.30.0 diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c index 9cdebe7f26cb..4150096fd350 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp.c @@ -2268,6 +2268,8 @@ static const struct qmp_phy_init_tbl sm8350_usb3_uniphy_pcs_tbl[] = { QMP_PHY_INIT_CFG(QPHY_V4_PCS_REFGEN_REQ_CONFIG1, 0x21), }; +struct qmp_phy; + /* struct qmp_phy_cfg - per-PHY initialization config */ struct qmp_phy_cfg { /* phy-type - PCIE/UFS/USB */ @@ -2307,6 +2309,12 @@ struct qmp_phy_cfg { const struct qmp_phy_init_tbl *serdes_tbl_hbr3; int serdes_tbl_hbr3_num; + /* DP PHY callbacks */ + int (*configure_dp_phy)(struct qmp_phy *qphy); + void (*configure_dp_tx)(struct qmp_phy *qphy); + int (*calibrate_dp_phy)(struct qmp_phy *qphy); + void (*dp_aux_init)(struct qmp_phy *qphy); + /* clock ids to be requested */ const char * const *clk_list; int num_clks; @@ -2423,6 +2431,216 @@ struct qcom_qmp { struct reset_control *ufs_reset; }; +static void qcom_qmp_v3_phy_dp_aux_init(struct qmp_phy *qphy) +{ + writel(DP_PHY_PD_CTL_PWRDN | DP_PHY_PD_CTL_AUX_PWRDN | + DP_PHY_PD_CTL_PLL_PWRDN | DP_PHY_PD_CTL_DP_CLAMP_EN, + qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL); + + /* Turn on BIAS current for PHY/PLL */ + writel(QSERDES_V3_COM_BIAS_EN | QSERDES_V3_COM_BIAS_EN_MUX | + QSERDES_V3_COM_CLKBUF_L_EN | QSERDES_V3_COM_EN_SYSCLK_TX_SEL, + qphy->serdes + QSERDES_V3_COM_BIAS_EN_CLKBUFLR_EN); + + writel(DP_PHY_PD_CTL_PSR_PWRDN, qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL); + + writel(DP_PHY_PD_CTL_PWRDN | DP_PHY_PD_CTL_AUX_PWRDN | + DP_PHY_PD_CTL_LANE_0_1_PWRDN | + DP_PHY_PD_CTL_LANE_2_3_PWRDN | DP_PHY_PD_CTL_PLL_PWRDN | + DP_PHY_PD_CTL_DP_CLAMP_EN, + qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL); + + writel(QSERDES_V3_COM_BIAS_EN | + QSERDES_V3_COM_BIAS_EN_MUX | QSERDES_V3_COM_CLKBUF_R_EN | + QSERDES_V3_COM_CLKBUF_L_EN | QSERDES_V3_COM_EN_SYSCLK_TX_SEL | + QSERDES_V3_COM_CLKBUF_RX_DRIVE_L, + qphy->serdes + QSERDES_V3_COM_BIAS_EN_CLKBUFLR_EN); + + writel(0x00, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG0); + writel(0x13, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG1); + writel(0x24, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG2); + writel(0x00, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG3); + writel(0x0a, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG4); + writel(0x26, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG5); + writel(0x0a, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG6); + writel(0x03, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG7); + writel(0xbb, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG8); + writel(0x03, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG9); + qphy->dp_aux_cfg = 0; + + writel(PHY_AUX_STOP_ERR_MASK | PHY_AUX_DEC_ERR_MASK | + PHY_AUX_SYNC_ERR_MASK | PHY_AUX_ALIGN_ERR_MASK | + PHY_AUX_REQ_ERR_MASK, + qphy->pcs + QSERDES_V3_DP_PHY_AUX_INTERRUPT_MASK); +} + +static const u8 qmp_dp_v3_pre_emphasis_hbr_rbr[4][4] = { + { 0x00, 0x0c, 0x14, 0x19 }, + { 0x00, 0x0b, 0x12, 0xff }, + { 0x00, 0x0b, 0xff, 0xff }, + { 0x04, 0xff, 0xff, 0xff } +}; + +static const u8 qmp_dp_v3_voltage_swing_hbr_rbr[4][4] = { + { 0x08, 0x0f, 0x16, 0x1f }, + { 0x11, 0x1e, 0x1f, 0xff }, + { 0x19, 0x1f, 0xff, 0xff }, + { 0x1f, 0xff, 0xff, 0xff } +}; + +static void qcom_qmp_v3_phy_configure_dp_tx(struct qmp_phy *qphy) +{ + const struct phy_configure_opts_dp *dp_opts = &qphy->dp_opts; + unsigned int v_level = 0, p_level = 0; + u32 bias_en, drvr_en; + u8 voltage_swing_cfg, pre_emphasis_cfg; + int i; + + for (i = 0; i < dp_opts->lanes; i++) { + v_level = max(v_level, dp_opts->voltage[i]); + p_level = max(p_level, dp_opts->pre[i]); + } + + if (dp_opts->lanes == 1) { + bias_en = 0x3e; + drvr_en = 0x13; + } else { + bias_en = 0x3f; + drvr_en = 0x10; + } + + voltage_swing_cfg = qmp_dp_v3_voltage_swing_hbr_rbr[v_level][p_level]; + pre_emphasis_cfg = qmp_dp_v3_pre_emphasis_hbr_rbr[v_level][p_level]; + + /* TODO: Move check to config check */ + if (voltage_swing_cfg == 0xFF && pre_emphasis_cfg == 0xFF) + return; + + /* Enable MUX to use Cursor values from these registers */ + voltage_swing_cfg |= DP_PHY_TXn_TX_DRV_LVL_MUX_EN; + pre_emphasis_cfg |= DP_PHY_TXn_TX_EMP_POST1_LVL_MUX_EN; + + writel(voltage_swing_cfg, qphy->tx + QSERDES_V3_TX_TX_DRV_LVL); + writel(pre_emphasis_cfg, qphy->tx + QSERDES_V3_TX_TX_EMP_POST1_LVL); + writel(voltage_swing_cfg, qphy->tx2 + QSERDES_V3_TX_TX_DRV_LVL); + writel(pre_emphasis_cfg, qphy->tx2 + QSERDES_V3_TX_TX_EMP_POST1_LVL); + + writel(drvr_en, qphy->tx + QSERDES_V3_TX_HIGHZ_DRVR_EN); + writel(bias_en, qphy->tx + QSERDES_V3_TX_TRANSCEIVER_BIAS_EN); + writel(drvr_en, qphy->tx2 + QSERDES_V3_TX_HIGHZ_DRVR_EN); + writel(bias_en, qphy->tx2 + QSERDES_V3_TX_TRANSCEIVER_BIAS_EN); +} + +static int qcom_qmp_v3_phy_configure_dp_phy(struct qmp_phy *qphy) +{ + const struct qmp_phy_dp_clks *dp_clks = qphy->dp_clks; + const struct phy_configure_opts_dp *dp_opts = &qphy->dp_opts; + u32 val, phy_vco_div, status; + unsigned long pixel_freq; + + val = DP_PHY_PD_CTL_PWRDN | DP_PHY_PD_CTL_AUX_PWRDN | + DP_PHY_PD_CTL_PLL_PWRDN | DP_PHY_PD_CTL_DP_CLAMP_EN; + + /* + * TODO: Assume orientation is CC1 for now and two lanes, need to + * use type-c connector to understand orientation and lanes. + * + * Otherwise val changes to be like below if this code understood + * the orientation of the type-c cable. + * + * if (lane_cnt == 4 || orientation == ORIENTATION_CC2) + * val |= DP_PHY_PD_CTL_LANE_0_1_PWRDN; + * if (lane_cnt == 4 || orientation == ORIENTATION_CC1) + * val |= DP_PHY_PD_CTL_LANE_2_3_PWRDN; + * if (orientation == ORIENTATION_CC2) + * writel(0x4c, qphy->pcs + QSERDES_V3_DP_PHY_MODE); + */ + val |= DP_PHY_PD_CTL_LANE_2_3_PWRDN; + writel(val, qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL); + + writel(0x5c, qphy->pcs + QSERDES_V3_DP_PHY_MODE); + writel(0x05, qphy->pcs + QSERDES_V3_DP_PHY_TX0_TX1_LANE_CTL); + writel(0x05, qphy->pcs + QSERDES_V3_DP_PHY_TX2_TX3_LANE_CTL); + + switch (dp_opts->link_rate) { + case 1620: + phy_vco_div = 0x1; + pixel_freq = 1620000000UL / 2; + break; + case 2700: + phy_vco_div = 0x1; + pixel_freq = 2700000000UL / 2; + break; + case 5400: + phy_vco_div = 0x2; + pixel_freq = 5400000000UL / 4; + break; + case 8100: + phy_vco_div = 0x0; + pixel_freq = 8100000000UL / 6; + break; + default: + /* Other link rates aren't supported */ + return -EINVAL; + } + writel(phy_vco_div, qphy->pcs + QSERDES_V3_DP_PHY_VCO_DIV); + + clk_set_rate(dp_clks->dp_link_hw.clk, dp_opts->link_rate * 100000); + clk_set_rate(dp_clks->dp_pixel_hw.clk, pixel_freq); + + writel(0x04, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG2); + writel(0x01, qphy->pcs + QSERDES_V3_DP_PHY_CFG); + writel(0x05, qphy->pcs + QSERDES_V3_DP_PHY_CFG); + writel(0x01, qphy->pcs + QSERDES_V3_DP_PHY_CFG); + writel(0x09, qphy->pcs + QSERDES_V3_DP_PHY_CFG); + + writel(0x20, qphy->serdes + QSERDES_V3_COM_RESETSM_CNTRL); + + if (readl_poll_timeout(qphy->serdes + QSERDES_V3_COM_C_READY_STATUS, + status, + ((status & BIT(0)) > 0), + 500, + 10000)) + return -ETIMEDOUT; + + writel(0x19, qphy->pcs + QSERDES_V3_DP_PHY_CFG); + + if (readl_poll_timeout(qphy->pcs + QSERDES_V3_DP_PHY_STATUS, + status, + ((status & BIT(1)) > 0), + 500, + 10000)) + return -ETIMEDOUT; + + writel(0x18, qphy->pcs + QSERDES_V3_DP_PHY_CFG); + udelay(2000); + writel(0x19, qphy->pcs + QSERDES_V3_DP_PHY_CFG); + + return readl_poll_timeout(qphy->pcs + QSERDES_V3_DP_PHY_STATUS, + status, + ((status & BIT(1)) > 0), + 500, + 10000); +} + +/* + * We need to calibrate the aux setting here as many times + * as the caller tries + */ +static int qcom_qmp_v3_dp_phy_calibrate(struct qmp_phy *qphy) +{ + static const u8 cfg1_settings[] = { 0x13, 0x23, 0x1d }; + u8 val; + + qphy->dp_aux_cfg++; + qphy->dp_aux_cfg %= ARRAY_SIZE(cfg1_settings); + val = cfg1_settings[qphy->dp_aux_cfg]; + + writel(val, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG1); + + return 0; +} + static inline void qphy_setbits(void __iomem *base, u32 offset, u32 val) { u32 reg; @@ -2871,6 +3089,11 @@ static const struct qmp_phy_cfg sc7180_dpphy_cfg = { .has_phy_dp_com_ctrl = true, .is_dual_lane_phy = true, + + .dp_aux_init = qcom_qmp_v3_phy_dp_aux_init, + .configure_dp_tx = qcom_qmp_v3_phy_configure_dp_tx, + .configure_dp_phy = qcom_qmp_v3_phy_configure_dp_phy, + .calibrate_dp_phy = qcom_qmp_v3_dp_phy_calibrate, }; static const struct qmp_phy_combo_cfg sc7180_usb3dpphy_cfg = { @@ -3332,227 +3555,28 @@ static int qcom_qmp_phy_serdes_init(struct qmp_phy *qphy) return 0; } -static void qcom_qmp_phy_dp_aux_init(struct qmp_phy *qphy) -{ - writel(DP_PHY_PD_CTL_PWRDN | DP_PHY_PD_CTL_AUX_PWRDN | - DP_PHY_PD_CTL_PLL_PWRDN | DP_PHY_PD_CTL_DP_CLAMP_EN, - qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL); - - /* Turn on BIAS current for PHY/PLL */ - writel(QSERDES_V3_COM_BIAS_EN | QSERDES_V3_COM_BIAS_EN_MUX | - QSERDES_V3_COM_CLKBUF_L_EN | QSERDES_V3_COM_EN_SYSCLK_TX_SEL, - qphy->serdes + QSERDES_V3_COM_BIAS_EN_CLKBUFLR_EN); - - writel(DP_PHY_PD_CTL_PSR_PWRDN, qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL); - - writel(DP_PHY_PD_CTL_PWRDN | DP_PHY_PD_CTL_AUX_PWRDN | - DP_PHY_PD_CTL_LANE_0_1_PWRDN | - DP_PHY_PD_CTL_LANE_2_3_PWRDN | DP_PHY_PD_CTL_PLL_PWRDN | - DP_PHY_PD_CTL_DP_CLAMP_EN, - qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL); - - writel(QSERDES_V3_COM_BIAS_EN | - QSERDES_V3_COM_BIAS_EN_MUX | QSERDES_V3_COM_CLKBUF_R_EN | - QSERDES_V3_COM_CLKBUF_L_EN | QSERDES_V3_COM_EN_SYSCLK_TX_SEL | - QSERDES_V3_COM_CLKBUF_RX_DRIVE_L, - qphy->serdes + QSERDES_V3_COM_BIAS_EN_CLKBUFLR_EN); - - writel(0x00, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG0); - writel(0x13, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG1); - writel(0x24, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG2); - writel(0x00, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG3); - writel(0x0a, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG4); - writel(0x26, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG5); - writel(0x0a, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG6); - writel(0x03, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG7); - writel(0xbb, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG8); - writel(0x03, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG9); - qphy->dp_aux_cfg = 0; - - writel(PHY_AUX_STOP_ERR_MASK | PHY_AUX_DEC_ERR_MASK | - PHY_AUX_SYNC_ERR_MASK | PHY_AUX_ALIGN_ERR_MASK | - PHY_AUX_REQ_ERR_MASK, - qphy->pcs + QSERDES_V3_DP_PHY_AUX_INTERRUPT_MASK); -} - -static const u8 qmp_dp_v3_pre_emphasis_hbr_rbr[4][4] = { - { 0x00, 0x0c, 0x14, 0x19 }, - { 0x00, 0x0b, 0x12, 0xff }, - { 0x00, 0x0b, 0xff, 0xff }, - { 0x04, 0xff, 0xff, 0xff } -}; - -static const u8 qmp_dp_v3_voltage_swing_hbr_rbr[4][4] = { - { 0x08, 0x0f, 0x16, 0x1f }, - { 0x11, 0x1e, 0x1f, 0xff }, - { 0x19, 0x1f, 0xff, 0xff }, - { 0x1f, 0xff, 0xff, 0xff } -}; - -static void qcom_qmp_phy_configure_dp_tx(struct qmp_phy *qphy) -{ - const struct phy_configure_opts_dp *dp_opts = &qphy->dp_opts; - unsigned int v_level = 0, p_level = 0; - u32 bias_en, drvr_en; - u8 voltage_swing_cfg, pre_emphasis_cfg; - int i; - - for (i = 0; i < dp_opts->lanes; i++) { - v_level = max(v_level, dp_opts->voltage[i]); - p_level = max(p_level, dp_opts->pre[i]); - } - - if (dp_opts->lanes == 1) { - bias_en = 0x3e; - drvr_en = 0x13; - } else { - bias_en = 0x3f; - drvr_en = 0x10; - } - - voltage_swing_cfg = qmp_dp_v3_voltage_swing_hbr_rbr[v_level][p_level]; - pre_emphasis_cfg = qmp_dp_v3_pre_emphasis_hbr_rbr[v_level][p_level]; - - /* TODO: Move check to config check */ - if (voltage_swing_cfg == 0xFF && pre_emphasis_cfg == 0xFF) - return; - - /* Enable MUX to use Cursor values from these registers */ - voltage_swing_cfg |= DP_PHY_TXn_TX_DRV_LVL_MUX_EN; - pre_emphasis_cfg |= DP_PHY_TXn_TX_EMP_POST1_LVL_MUX_EN; - - writel(voltage_swing_cfg, qphy->tx + QSERDES_V3_TX_TX_DRV_LVL); - writel(pre_emphasis_cfg, qphy->tx + QSERDES_V3_TX_TX_EMP_POST1_LVL); - writel(voltage_swing_cfg, qphy->tx2 + QSERDES_V3_TX_TX_DRV_LVL); - writel(pre_emphasis_cfg, qphy->tx2 + QSERDES_V3_TX_TX_EMP_POST1_LVL); - - writel(drvr_en, qphy->tx + QSERDES_V3_TX_HIGHZ_DRVR_EN); - writel(bias_en, qphy->tx + QSERDES_V3_TX_TRANSCEIVER_BIAS_EN); - writel(drvr_en, qphy->tx2 + QSERDES_V3_TX_HIGHZ_DRVR_EN); - writel(bias_en, qphy->tx2 + QSERDES_V3_TX_TRANSCEIVER_BIAS_EN); -} - static int qcom_qmp_dp_phy_configure(struct phy *phy, union phy_configure_opts *opts) { const struct phy_configure_opts_dp *dp_opts = &opts->dp; struct qmp_phy *qphy = phy_get_drvdata(phy); + const struct qmp_phy_cfg *cfg = qphy->cfg; memcpy(&qphy->dp_opts, dp_opts, sizeof(*dp_opts)); if (qphy->dp_opts.set_voltages) { - qcom_qmp_phy_configure_dp_tx(qphy); + cfg->configure_dp_tx(qphy); qphy->dp_opts.set_voltages = 0; } return 0; } -static int qcom_qmp_phy_configure_dp_phy(struct qmp_phy *qphy) -{ - const struct qmp_phy_dp_clks *dp_clks = qphy->dp_clks; - const struct phy_configure_opts_dp *dp_opts = &qphy->dp_opts; - u32 val, phy_vco_div, status; - unsigned long pixel_freq; - - val = DP_PHY_PD_CTL_PWRDN | DP_PHY_PD_CTL_AUX_PWRDN | - DP_PHY_PD_CTL_PLL_PWRDN | DP_PHY_PD_CTL_DP_CLAMP_EN; - - /* - * TODO: Assume orientation is CC1 for now and two lanes, need to - * use type-c connector to understand orientation and lanes. - * - * Otherwise val changes to be like below if this code understood - * the orientation of the type-c cable. - * - * if (lane_cnt == 4 || orientation == ORIENTATION_CC2) - * val |= DP_PHY_PD_CTL_LANE_0_1_PWRDN; - * if (lane_cnt == 4 || orientation == ORIENTATION_CC1) - * val |= DP_PHY_PD_CTL_LANE_2_3_PWRDN; - * if (orientation == ORIENTATION_CC2) - * writel(0x4c, qphy->pcs + QSERDES_V3_DP_PHY_MODE); - */ - val |= DP_PHY_PD_CTL_LANE_2_3_PWRDN; - writel(val, qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL); - - writel(0x5c, qphy->pcs + QSERDES_V3_DP_PHY_MODE); - writel(0x05, qphy->pcs + QSERDES_V3_DP_PHY_TX0_TX1_LANE_CTL); - writel(0x05, qphy->pcs + QSERDES_V3_DP_PHY_TX2_TX3_LANE_CTL); - - switch (dp_opts->link_rate) { - case 1620: - phy_vco_div = 0x1; - pixel_freq = 1620000000UL / 2; - break; - case 2700: - phy_vco_div = 0x1; - pixel_freq = 2700000000UL / 2; - break; - case 5400: - phy_vco_div = 0x2; - pixel_freq = 5400000000UL / 4; - break; - case 8100: - phy_vco_div = 0x0; - pixel_freq = 8100000000UL / 6; - break; - default: - /* Other link rates aren't supported */ - return -EINVAL; - } - writel(phy_vco_div, qphy->pcs + QSERDES_V3_DP_PHY_VCO_DIV); - - clk_set_rate(dp_clks->dp_link_hw.clk, dp_opts->link_rate * 100000); - clk_set_rate(dp_clks->dp_pixel_hw.clk, pixel_freq); - - writel(0x04, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG2); - writel(0x01, qphy->pcs + QSERDES_V3_DP_PHY_CFG); - writel(0x05, qphy->pcs + QSERDES_V3_DP_PHY_CFG); - writel(0x01, qphy->pcs + QSERDES_V3_DP_PHY_CFG); - writel(0x09, qphy->pcs + QSERDES_V3_DP_PHY_CFG); - - writel(0x20, qphy->serdes + QSERDES_V3_COM_RESETSM_CNTRL); - - if (readl_poll_timeout(qphy->serdes + QSERDES_V3_COM_C_READY_STATUS, - status, - ((status & BIT(0)) > 0), - 500, - 10000)) - return -ETIMEDOUT; - - writel(0x19, qphy->pcs + QSERDES_V3_DP_PHY_CFG); - - if (readl_poll_timeout(qphy->pcs + QSERDES_V3_DP_PHY_STATUS, - status, - ((status & BIT(1)) > 0), - 500, - 10000)) - return -ETIMEDOUT; - - writel(0x18, qphy->pcs + QSERDES_V3_DP_PHY_CFG); - udelay(2000); - writel(0x19, qphy->pcs + QSERDES_V3_DP_PHY_CFG); - - return readl_poll_timeout(qphy->pcs + QSERDES_V3_DP_PHY_STATUS, - status, - ((status & BIT(1)) > 0), - 500, - 10000); -} - -/* - * We need to calibrate the aux setting here as many times - * as the caller tries - */ static int qcom_qmp_dp_phy_calibrate(struct phy *phy) { struct qmp_phy *qphy = phy_get_drvdata(phy); - static const u8 cfg1_settings[] = { 0x13, 0x23, 0x1d }; - u8 val; - - qphy->dp_aux_cfg++; - qphy->dp_aux_cfg %= ARRAY_SIZE(cfg1_settings); - val = cfg1_settings[qphy->dp_aux_cfg]; + const struct qmp_phy_cfg *cfg = qphy->cfg; - writel(val, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG1); + if (cfg->calibrate_dp_phy) + return cfg->calibrate_dp_phy(qphy); return 0; } @@ -3729,7 +3753,7 @@ static int qcom_qmp_phy_init(struct phy *phy) return ret; if (cfg->type == PHY_TYPE_DP) - qcom_qmp_phy_dp_aux_init(qphy); + cfg->dp_aux_init(qphy); return 0; } @@ -3783,7 +3807,7 @@ static int qcom_qmp_phy_power_on(struct phy *phy) /* Configure special DP tx tunings */ if (cfg->type == PHY_TYPE_DP) - qcom_qmp_phy_configure_dp_tx(qphy); + cfg->configure_dp_tx(qphy); qcom_qmp_phy_configure_lane(rx, cfg->regs, cfg->rx_tbl, cfg->rx_tbl_num, 1); @@ -3802,7 +3826,7 @@ static int qcom_qmp_phy_power_on(struct phy *phy) /* Configure link rate, swing, etc. */ if (cfg->type == PHY_TYPE_DP) { - qcom_qmp_phy_configure_dp_phy(qphy); + cfg->configure_dp_phy(qphy); } else { qcom_qmp_phy_configure(pcs, cfg->regs, cfg->pcs_tbl, cfg->pcs_tbl_num); if (cfg->pcs_tbl_sec) From patchwork Thu Feb 11 20:15:35 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 381043 Delivered-To: patch@linaro.org Received: by 2002:a02:b18a:0:0:0:0:0 with SMTP id t10csp2382272jah; Thu, 11 Feb 2021 12:17:29 -0800 (PST) X-Google-Smtp-Source: ABdhPJzj7CV8mM6i4iptnUQRxqdzy6vBXzBcE8zDvRhGcgYZ87RsYyxc8bDFzj+7XY4ghFH+Q23R X-Received: by 2002:a17:906:9bf8:: with SMTP id de56mr9985722ejc.425.1613074648852; Thu, 11 Feb 2021 12:17:28 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; 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Signed-off-by: Dmitry Baryshkov --- drivers/phy/qualcomm/phy-qcom-qmp.c | 445 +++++++++++++++++++++++++--- drivers/phy/qualcomm/phy-qcom-qmp.h | 77 +++-- 2 files changed, 463 insertions(+), 59 deletions(-) -- 2.30.0 diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c index 4150096fd350..905441740742 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp.c +++ b/drivers/phy/qualcomm/phy-qcom-qmp.c @@ -1840,6 +1840,98 @@ static const struct qmp_phy_init_tbl sm8250_usb3_uniphy_pcs_tbl[] = { QMP_PHY_INIT_CFG(QPHY_V4_PCS_REFGEN_REQ_CONFIG1, 0x21), }; +static const struct qmp_phy_init_tbl qmp_v4_dp_serdes_tbl[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SVS_MODE_CLK_SEL, 0x05), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SYSCLK_EN_SEL, 0x3b), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SYS_CLK_CTRL, 0x02), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_CLK_ENABLE1, 0x0c), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SYSCLK_BUF_ENABLE, 0x06), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_CLK_SELECT, 0x30), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_IVCO, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_CCTRL_MODE0, 0x36), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_RCTRL_MODE0, 0x16), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_CP_CTRL_MODE0, 0x06), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_CMN_CONFIG, 0x02), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_INTEGLOOP_GAIN0_MODE0, 0x3f), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_INTEGLOOP_GAIN1_MODE0, 0x00), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_VCO_TUNE_MAP, 0x00), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START1_MODE0, 0x00), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_BG_TIMER, 0x0a), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_CORECLK_DIV_MODE0, 0x0a), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_VCO_TUNE_CTRL, 0x00), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIAS_EN_CLKBUFLR_EN, 0x17), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_CORE_CLK_EN, 0x1f), +}; + +static const struct qmp_phy_init_tbl qmp_v4_dp_serdes_tbl_rbr[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_COM_HSCLK_SEL, 0x05), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DEC_START_MODE0, 0x69), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START2_MODE0, 0x80), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START3_MODE0, 0x07), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP1_MODE0, 0x6f), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP2_MODE0, 0x08), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP_EN, 0x04), +}; + +static const struct qmp_phy_init_tbl qmp_v4_dp_serdes_tbl_hbr[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_COM_HSCLK_SEL, 0x03), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DEC_START_MODE0, 0x69), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START2_MODE0, 0x80), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START3_MODE0, 0x07), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP1_MODE0, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP2_MODE0, 0x0e), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP_EN, 0x08), +}; + +static const struct qmp_phy_init_tbl qmp_v4_dp_serdes_tbl_hbr2[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_COM_HSCLK_SEL, 0x01), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DEC_START_MODE0, 0x8c), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START2_MODE0, 0x00), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START3_MODE0, 0x0a), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP1_MODE0, 0x1f), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP2_MODE0, 0x1c), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP_EN, 0x08), +}; + +static const struct qmp_phy_init_tbl qmp_v4_dp_serdes_tbl_hbr3[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_COM_HSCLK_SEL, 0x00), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DEC_START_MODE0, 0x69), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START2_MODE0, 0x80), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DIV_FRAC_START3_MODE0, 0x07), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP1_MODE0, 0x2f), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP2_MODE0, 0x2a), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP_EN, 0x08), +}; + +static const struct qmp_phy_init_tbl qmp_v4_dp_tx_tbl[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_TX_VMODE_CTRL1, 0x40), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_PRE_STALL_LDO_BOOST_EN, 0x30), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_INTERFACE_SELECT, 0x3b), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_CLKBUF_ENABLE, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_RESET_TSYNC_EN, 0x03), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_TRAN_DRVR_EMP_EN, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_PARRATE_REC_DETECT_IDLE_EN, 0x00), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_TX_INTERFACE_MODE, 0x00), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_RES_CODE_LANE_OFFSET_TX, 0x11), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_RES_CODE_LANE_OFFSET_RX, 0x11), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_TX_BAND, 0x4), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_TX_POL_INV, 0x0a), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_TX_DRV_LVL, 0x2a), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_TX_EMP_POST1_LVL, 0x20), +}; + +static const struct qmp_phy_init_tbl qmp_v4_usb3_rx_tbl[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FASTLOCK_FO_GAIN, 0x0b), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL2, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL3, 0x4e), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL4, 0x18), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQ_OFFSET_ADAPTOR_CNTRL1, 0x77), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_OFFSET_ADAPTOR_CNTRL2, 0x80), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_SIGDET_CNTRL, 0x03), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_SIGDET_DEGLITCH_CNTRL, 0x16), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SO_SATURATION_AND_ENABLE, 0x75), +}; + static const struct qmp_phy_init_tbl sm8250_qmp_pcie_serdes_tbl[] = { QMP_PHY_INIT_CFG(QSERDES_V4_COM_SYSCLK_EN_SEL, 0x08), QMP_PHY_INIT_CFG(QSERDES_V4_COM_CLK_SELECT, 0x34), @@ -2435,20 +2527,20 @@ static void qcom_qmp_v3_phy_dp_aux_init(struct qmp_phy *qphy) { writel(DP_PHY_PD_CTL_PWRDN | DP_PHY_PD_CTL_AUX_PWRDN | DP_PHY_PD_CTL_PLL_PWRDN | DP_PHY_PD_CTL_DP_CLAMP_EN, - qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL); + qphy->pcs + QSERDES_DP_PHY_PD_CTL); /* Turn on BIAS current for PHY/PLL */ writel(QSERDES_V3_COM_BIAS_EN | QSERDES_V3_COM_BIAS_EN_MUX | QSERDES_V3_COM_CLKBUF_L_EN | QSERDES_V3_COM_EN_SYSCLK_TX_SEL, qphy->serdes + QSERDES_V3_COM_BIAS_EN_CLKBUFLR_EN); - writel(DP_PHY_PD_CTL_PSR_PWRDN, qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL); + writel(DP_PHY_PD_CTL_PSR_PWRDN, qphy->pcs + QSERDES_DP_PHY_PD_CTL); writel(DP_PHY_PD_CTL_PWRDN | DP_PHY_PD_CTL_AUX_PWRDN | DP_PHY_PD_CTL_LANE_0_1_PWRDN | DP_PHY_PD_CTL_LANE_2_3_PWRDN | DP_PHY_PD_CTL_PLL_PWRDN | DP_PHY_PD_CTL_DP_CLAMP_EN, - qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL); + qphy->pcs + QSERDES_DP_PHY_PD_CTL); writel(QSERDES_V3_COM_BIAS_EN | QSERDES_V3_COM_BIAS_EN_MUX | QSERDES_V3_COM_CLKBUF_R_EN | @@ -2456,16 +2548,16 @@ static void qcom_qmp_v3_phy_dp_aux_init(struct qmp_phy *qphy) QSERDES_V3_COM_CLKBUF_RX_DRIVE_L, qphy->serdes + QSERDES_V3_COM_BIAS_EN_CLKBUFLR_EN); - writel(0x00, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG0); - writel(0x13, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG1); - writel(0x24, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG2); - writel(0x00, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG3); - writel(0x0a, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG4); - writel(0x26, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG5); - writel(0x0a, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG6); - writel(0x03, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG7); - writel(0xbb, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG8); - writel(0x03, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG9); + writel(0x00, qphy->pcs + QSERDES_DP_PHY_AUX_CFG0); + writel(0x13, qphy->pcs + QSERDES_DP_PHY_AUX_CFG1); + writel(0x24, qphy->pcs + QSERDES_DP_PHY_AUX_CFG2); + writel(0x00, qphy->pcs + QSERDES_DP_PHY_AUX_CFG3); + writel(0x0a, qphy->pcs + QSERDES_DP_PHY_AUX_CFG4); + writel(0x26, qphy->pcs + QSERDES_DP_PHY_AUX_CFG5); + writel(0x0a, qphy->pcs + QSERDES_DP_PHY_AUX_CFG6); + writel(0x03, qphy->pcs + QSERDES_DP_PHY_AUX_CFG7); + writel(0xbb, qphy->pcs + QSERDES_DP_PHY_AUX_CFG8); + writel(0x03, qphy->pcs + QSERDES_DP_PHY_AUX_CFG9); qphy->dp_aux_cfg = 0; writel(PHY_AUX_STOP_ERR_MASK | PHY_AUX_DEC_ERR_MASK | @@ -2488,11 +2580,10 @@ static const u8 qmp_dp_v3_voltage_swing_hbr_rbr[4][4] = { { 0x1f, 0xff, 0xff, 0xff } }; -static void qcom_qmp_v3_phy_configure_dp_tx(struct qmp_phy *qphy) +static int qcom_qmp_phy_configure_dp_swing(struct qmp_phy *qphy, unsigned int drv_lvl, unsigned int emp_post) { const struct phy_configure_opts_dp *dp_opts = &qphy->dp_opts; unsigned int v_level = 0, p_level = 0; - u32 bias_en, drvr_en; u8 voltage_swing_cfg, pre_emphasis_cfg; int i; @@ -2501,29 +2592,42 @@ static void qcom_qmp_v3_phy_configure_dp_tx(struct qmp_phy *qphy) p_level = max(p_level, dp_opts->pre[i]); } - if (dp_opts->lanes == 1) { - bias_en = 0x3e; - drvr_en = 0x13; - } else { - bias_en = 0x3f; - drvr_en = 0x10; - } - voltage_swing_cfg = qmp_dp_v3_voltage_swing_hbr_rbr[v_level][p_level]; pre_emphasis_cfg = qmp_dp_v3_pre_emphasis_hbr_rbr[v_level][p_level]; /* TODO: Move check to config check */ if (voltage_swing_cfg == 0xFF && pre_emphasis_cfg == 0xFF) - return; + return -EINVAL; /* Enable MUX to use Cursor values from these registers */ voltage_swing_cfg |= DP_PHY_TXn_TX_DRV_LVL_MUX_EN; pre_emphasis_cfg |= DP_PHY_TXn_TX_EMP_POST1_LVL_MUX_EN; - writel(voltage_swing_cfg, qphy->tx + QSERDES_V3_TX_TX_DRV_LVL); - writel(pre_emphasis_cfg, qphy->tx + QSERDES_V3_TX_TX_EMP_POST1_LVL); - writel(voltage_swing_cfg, qphy->tx2 + QSERDES_V3_TX_TX_DRV_LVL); - writel(pre_emphasis_cfg, qphy->tx2 + QSERDES_V3_TX_TX_EMP_POST1_LVL); + writel(voltage_swing_cfg, qphy->tx + drv_lvl); + writel(pre_emphasis_cfg, qphy->tx + emp_post); + writel(voltage_swing_cfg, qphy->tx2 + drv_lvl); + writel(pre_emphasis_cfg, qphy->tx2 + emp_post); + + return 0; +} + +static void qcom_qmp_v3_phy_configure_dp_tx(struct qmp_phy *qphy) +{ + const struct phy_configure_opts_dp *dp_opts = &qphy->dp_opts; + u32 bias_en, drvr_en; + + if (qcom_qmp_phy_configure_dp_swing(qphy, + QSERDES_V3_TX_TX_DRV_LVL, + QSERDES_V3_TX_TX_EMP_POST1_LVL) < 0) + return; + + if (dp_opts->lanes == 1) { + bias_en = 0x3e; + drvr_en = 0x13; + } else { + bias_en = 0x3f; + drvr_en = 0x10; + } writel(drvr_en, qphy->tx + QSERDES_V3_TX_HIGHZ_DRVR_EN); writel(bias_en, qphy->tx + QSERDES_V3_TX_TRANSCEIVER_BIAS_EN); @@ -2558,7 +2662,6 @@ static int qcom_qmp_v3_phy_configure_dp_phy(struct qmp_phy *qphy) val |= DP_PHY_PD_CTL_LANE_2_3_PWRDN; writel(val, qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL); - writel(0x5c, qphy->pcs + QSERDES_V3_DP_PHY_MODE); writel(0x05, qphy->pcs + QSERDES_V3_DP_PHY_TX0_TX1_LANE_CTL); writel(0x05, qphy->pcs + QSERDES_V3_DP_PHY_TX2_TX3_LANE_CTL); @@ -2588,11 +2691,11 @@ static int qcom_qmp_v3_phy_configure_dp_phy(struct qmp_phy *qphy) clk_set_rate(dp_clks->dp_link_hw.clk, dp_opts->link_rate * 100000); clk_set_rate(dp_clks->dp_pixel_hw.clk, pixel_freq); - writel(0x04, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG2); - writel(0x01, qphy->pcs + QSERDES_V3_DP_PHY_CFG); - writel(0x05, qphy->pcs + QSERDES_V3_DP_PHY_CFG); - writel(0x01, qphy->pcs + QSERDES_V3_DP_PHY_CFG); - writel(0x09, qphy->pcs + QSERDES_V3_DP_PHY_CFG); + writel(0x04, qphy->pcs + QSERDES_DP_PHY_AUX_CFG2); + writel(0x01, qphy->pcs + QSERDES_DP_PHY_CFG); + writel(0x05, qphy->pcs + QSERDES_DP_PHY_CFG); + writel(0x01, qphy->pcs + QSERDES_DP_PHY_CFG); + writel(0x09, qphy->pcs + QSERDES_DP_PHY_CFG); writel(0x20, qphy->serdes + QSERDES_V3_COM_RESETSM_CNTRL); @@ -2603,7 +2706,7 @@ static int qcom_qmp_v3_phy_configure_dp_phy(struct qmp_phy *qphy) 10000)) return -ETIMEDOUT; - writel(0x19, qphy->pcs + QSERDES_V3_DP_PHY_CFG); + writel(0x19, qphy->pcs + QSERDES_DP_PHY_CFG); if (readl_poll_timeout(qphy->pcs + QSERDES_V3_DP_PHY_STATUS, status, @@ -2612,9 +2715,9 @@ static int qcom_qmp_v3_phy_configure_dp_phy(struct qmp_phy *qphy) 10000)) return -ETIMEDOUT; - writel(0x18, qphy->pcs + QSERDES_V3_DP_PHY_CFG); + writel(0x18, qphy->pcs + QSERDES_DP_PHY_CFG); udelay(2000); - writel(0x19, qphy->pcs + QSERDES_V3_DP_PHY_CFG); + writel(0x19, qphy->pcs + QSERDES_DP_PHY_CFG); return readl_poll_timeout(qphy->pcs + QSERDES_V3_DP_PHY_STATUS, status, @@ -2636,7 +2739,224 @@ static int qcom_qmp_v3_dp_phy_calibrate(struct qmp_phy *qphy) qphy->dp_aux_cfg %= ARRAY_SIZE(cfg1_settings); val = cfg1_settings[qphy->dp_aux_cfg]; - writel(val, qphy->pcs + QSERDES_V3_DP_PHY_AUX_CFG1); + writel(val, qphy->pcs + QSERDES_DP_PHY_AUX_CFG1); + + return 0; +} + +static void qcom_qmp_v4_phy_dp_aux_init(struct qmp_phy *qphy) +{ + writel(DP_PHY_PD_CTL_PWRDN | DP_PHY_PD_CTL_PSR_PWRDN | DP_PHY_PD_CTL_AUX_PWRDN | + DP_PHY_PD_CTL_PLL_PWRDN | DP_PHY_PD_CTL_DP_CLAMP_EN, + qphy->pcs + QSERDES_DP_PHY_PD_CTL); + + /* Turn on BIAS current for PHY/PLL */ + writel(0x17, qphy->serdes + QSERDES_V4_COM_BIAS_EN_CLKBUFLR_EN); + + writel(0x00, qphy->pcs + QSERDES_DP_PHY_AUX_CFG0); + writel(0x13, qphy->pcs + QSERDES_DP_PHY_AUX_CFG1); + writel(0xa4, qphy->pcs + QSERDES_DP_PHY_AUX_CFG2); + writel(0x00, qphy->pcs + QSERDES_DP_PHY_AUX_CFG3); + writel(0x0a, qphy->pcs + QSERDES_DP_PHY_AUX_CFG4); + writel(0x26, qphy->pcs + QSERDES_DP_PHY_AUX_CFG5); + writel(0x0a, qphy->pcs + QSERDES_DP_PHY_AUX_CFG6); + writel(0x03, qphy->pcs + QSERDES_DP_PHY_AUX_CFG7); + writel(0xb7, qphy->pcs + QSERDES_DP_PHY_AUX_CFG8); + writel(0x03, qphy->pcs + QSERDES_DP_PHY_AUX_CFG9); + qphy->dp_aux_cfg = 0; + + writel(PHY_AUX_STOP_ERR_MASK | PHY_AUX_DEC_ERR_MASK | + PHY_AUX_SYNC_ERR_MASK | PHY_AUX_ALIGN_ERR_MASK | + PHY_AUX_REQ_ERR_MASK, + qphy->pcs + QSERDES_V4_DP_PHY_AUX_INTERRUPT_MASK); +} + +static void qcom_qmp_v4_phy_configure_dp_tx(struct qmp_phy *qphy) +{ + /* Program default values before writing proper values */ + writel(0x27, qphy->tx + QSERDES_V4_TX_TX_DRV_LVL); + writel(0x27, qphy->tx2 + QSERDES_V4_TX_TX_DRV_LVL); + + writel(0x20, qphy->tx + QSERDES_V4_TX_TX_EMP_POST1_LVL); + writel(0x20, qphy->tx2 + QSERDES_V4_TX_TX_EMP_POST1_LVL); + + qcom_qmp_phy_configure_dp_swing(qphy, + QSERDES_V4_TX_TX_DRV_LVL, + QSERDES_V4_TX_TX_EMP_POST1_LVL); +} + +static int qcom_qmp_v4_phy_configure_dp_phy(struct qmp_phy *qphy) +{ + const struct qmp_phy_dp_clks *dp_clks = qphy->dp_clks; + const struct phy_configure_opts_dp *dp_opts = &qphy->dp_opts; + u32 val, phy_vco_div, status; + unsigned long pixel_freq; + u32 bias0_en, drvr0_en, bias1_en, drvr1_en; + + writel(0x0f, qphy->pcs + QSERDES_V4_DP_PHY_CFG_1); + + val = DP_PHY_PD_CTL_PWRDN | DP_PHY_PD_CTL_AUX_PWRDN | + DP_PHY_PD_CTL_PLL_PWRDN | DP_PHY_PD_CTL_DP_CLAMP_EN; + + /* + * TODO: Assume orientation is CC1 for now and two lanes, need to + * use type-c connector to understand orientation and lanes. + * + * Otherwise val changes to be like below if this code understood + * the orientation of the type-c cable. + * + * if (lane_cnt == 4 || orientation == ORIENTATION_CC2) + * val |= DP_PHY_PD_CTL_LANE_0_1_PWRDN; + * if (lane_cnt == 4 || orientation == ORIENTATION_CC1) + * val |= DP_PHY_PD_CTL_LANE_2_3_PWRDN; + * if (orientation == ORIENTATION_CC2) + * writel(0x4c, qphy->pcs + QSERDES_V3_DP_PHY_MODE); + */ + val |= DP_PHY_PD_CTL_LANE_2_3_PWRDN; + writel(val, qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL); + + writel(0x4c, qphy->pcs + QSERDES_V3_DP_PHY_MODE); + + writel(0x13, qphy->pcs + QSERDES_DP_PHY_AUX_CFG1); + writel(0xa4, qphy->pcs + QSERDES_DP_PHY_AUX_CFG2); + + writel(0x05, qphy->pcs + QSERDES_V4_DP_PHY_TX0_TX1_LANE_CTL); + writel(0x05, qphy->pcs + QSERDES_V4_DP_PHY_TX2_TX3_LANE_CTL); + + switch (dp_opts->link_rate) { + case 1620: + phy_vco_div = 0x1; + pixel_freq = 1620000000UL / 2; + break; + case 2700: + phy_vco_div = 0x1; + pixel_freq = 2700000000UL / 2; + break; + case 5400: + phy_vco_div = 0x2; + pixel_freq = 5400000000UL / 4; + break; + case 8100: + phy_vco_div = 0x0; + pixel_freq = 8100000000UL / 6; + break; + default: + /* Other link rates aren't supported */ + return -EINVAL; + } + writel(phy_vco_div, qphy->pcs + QSERDES_V4_DP_PHY_VCO_DIV); + + clk_set_rate(dp_clks->dp_link_hw.clk, dp_opts->link_rate * 100000); + clk_set_rate(dp_clks->dp_pixel_hw.clk, pixel_freq); + + writel(0x01, qphy->pcs + QSERDES_DP_PHY_CFG); + writel(0x05, qphy->pcs + QSERDES_DP_PHY_CFG); + writel(0x01, qphy->pcs + QSERDES_DP_PHY_CFG); + writel(0x09, qphy->pcs + QSERDES_DP_PHY_CFG); + + writel(0x20, qphy->serdes + QSERDES_V4_COM_RESETSM_CNTRL); + + if (readl_poll_timeout(qphy->serdes + QSERDES_V4_COM_C_READY_STATUS, + status, + ((status & BIT(0)) > 0), + 500, + 10000)) + return -ETIMEDOUT; + + if (readl_poll_timeout(qphy->serdes + QSERDES_V4_COM_CMN_STATUS, + status, + ((status & BIT(0)) > 0), + 500, + 10000)) + return -ETIMEDOUT; + + if (readl_poll_timeout(qphy->serdes + QSERDES_V4_COM_CMN_STATUS, + status, + ((status & BIT(1)) > 0), + 500, + 10000)) + return -ETIMEDOUT; + + writel(0x19, qphy->pcs + QSERDES_DP_PHY_CFG); + + if (readl_poll_timeout(qphy->pcs + QSERDES_V4_DP_PHY_STATUS, + status, + ((status & BIT(0)) > 0), + 500, + 10000)) + return -ETIMEDOUT; + + if (readl_poll_timeout(qphy->pcs + QSERDES_V4_DP_PHY_STATUS, + status, + ((status & BIT(1)) > 0), + 500, + 10000)) + return -ETIMEDOUT; + + /* + * At least for 7nm DP PHY this has to be done after enabling link + * clock. + */ + + if (dp_opts->lanes == 1) { + bias0_en = reverse ? 0x3e : 0x15; + bias1_en = reverse ? 0x15 : 0x3e; + drvr0_en = reverse ? 0x13 : 0x10; + drvr1_en = reverse ? 0x10 : 0x13; + } else if (dp_opts->lanes == 2) { + bias0_en = reverse ? 0x3f : 0x15; + bias1_en = reverse ? 0x15 : 0x3f; + drvr0_en = 0x10; + drvr1_en = 0x10; + } else { + bias0_en = 0x3f; + bias1_en = 0x3f; + drvr0_en = 0x10; + drvr1_en = 0x10; + } + + writel(drvr0_en, qphy->tx + QSERDES_V4_TX_HIGHZ_DRVR_EN); + writel(bias0_en, qphy->tx + QSERDES_V4_TX_TRANSCEIVER_BIAS_EN); + writel(drvr1_en, qphy->tx2 + QSERDES_V4_TX_HIGHZ_DRVR_EN); + writel(bias1_en, qphy->tx2 + QSERDES_V4_TX_TRANSCEIVER_BIAS_EN); + + writel(0x18, qphy->pcs + QSERDES_DP_PHY_CFG); + udelay(2000); + writel(0x19, qphy->pcs + QSERDES_DP_PHY_CFG); + + if (readl_poll_timeout(qphy->pcs + QSERDES_V4_DP_PHY_STATUS, + status, + ((status & BIT(1)) > 0), + 500, + 10000)) + return -ETIMEDOUT; + + writel(0x0a, qphy->tx + QSERDES_V4_TX_TX_POL_INV); + writel(0x0a, qphy->tx2 + QSERDES_V4_TX_TX_POL_INV); + + writel(0x27, qphy->tx + QSERDES_V4_TX_TX_DRV_LVL); + writel(0x27, qphy->tx2 + QSERDES_V4_TX_TX_DRV_LVL); + + writel(0x20, qphy->tx + QSERDES_V4_TX_TX_EMP_POST1_LVL); + writel(0x20, qphy->tx2 + QSERDES_V4_TX_TX_EMP_POST1_LVL); + + return 0; +} + +/* + * We need to calibrate the aux setting here as many times + * as the caller tries + */ +static int qcom_qmp_v4_dp_phy_calibrate(struct qmp_phy *qphy) +{ + static const u8 cfg1_settings[] = { 0x20, 0x13, 0x23, 0x1d }; + u8 val; + + qphy->dp_aux_cfg++; + qphy->dp_aux_cfg %= ARRAY_SIZE(cfg1_settings); + val = cfg1_settings[qphy->dp_aux_cfg]; + + writel(val, qphy->pcs + QSERDES_DP_PHY_AUX_CFG1); return 0; } @@ -3346,6 +3666,46 @@ static const struct qmp_phy_cfg sm8250_usb3_uniphy_cfg = { .pwrdn_delay_max = POWER_DOWN_DELAY_US_MAX, }; +static const struct qmp_phy_cfg sm8250_dpphy_cfg = { + .type = PHY_TYPE_DP, + .nlanes = 1, + + .serdes_tbl = qmp_v4_dp_serdes_tbl, + .serdes_tbl_num = ARRAY_SIZE(qmp_v4_dp_serdes_tbl), + .tx_tbl = qmp_v4_dp_tx_tbl, + .tx_tbl_num = ARRAY_SIZE(qmp_v4_dp_tx_tbl), + + .serdes_tbl_rbr = qmp_v4_dp_serdes_tbl_rbr, + .serdes_tbl_rbr_num = ARRAY_SIZE(qmp_v4_dp_serdes_tbl_rbr), + .serdes_tbl_hbr = qmp_v4_dp_serdes_tbl_hbr, + .serdes_tbl_hbr_num = ARRAY_SIZE(qmp_v4_dp_serdes_tbl_hbr), + .serdes_tbl_hbr2 = qmp_v4_dp_serdes_tbl_hbr2, + .serdes_tbl_hbr2_num = ARRAY_SIZE(qmp_v4_dp_serdes_tbl_hbr2), + .serdes_tbl_hbr3 = qmp_v4_dp_serdes_tbl_hbr3, + .serdes_tbl_hbr3_num = ARRAY_SIZE(qmp_v4_dp_serdes_tbl_hbr3), + + .clk_list = qmp_v4_phy_clk_l, + .num_clks = ARRAY_SIZE(qmp_v4_phy_clk_l), + .reset_list = msm8996_usb3phy_reset_l, + .num_resets = ARRAY_SIZE(msm8996_usb3phy_reset_l), + .vreg_list = qmp_phy_vreg_l, + .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l), + .regs = qmp_v4_usb3phy_regs_layout, + + .has_phy_dp_com_ctrl = true, + .is_dual_lane_phy = true, + + .dp_aux_init = qcom_qmp_v4_phy_dp_aux_init, + .configure_dp_tx = qcom_qmp_v4_phy_configure_dp_tx, + .configure_dp_phy = qcom_qmp_v4_phy_configure_dp_phy, + .calibrate_dp_phy = qcom_qmp_v4_dp_phy_calibrate, +}; + +static const struct qmp_phy_combo_cfg sm8250_usb3dpphy_cfg = { + .usb_cfg = &sm8250_usb3phy_cfg, + .dp_cfg = &sm8250_dpphy_cfg, +}; + static const struct qmp_phy_cfg sdx55_usb3_uniphy_cfg = { .type = PHY_TYPE_USB3, .nlanes = 1, @@ -3898,7 +4258,7 @@ static int qcom_qmp_phy_power_off(struct phy *phy) if (cfg->type == PHY_TYPE_DP) { /* Assert DP PHY power down */ - writel(DP_PHY_PD_CTL_PSR_PWRDN, qphy->pcs + QSERDES_V3_DP_PHY_PD_CTL); + writel(DP_PHY_PD_CTL_PSR_PWRDN, qphy->pcs + QSERDES_DP_PHY_PD_CTL); } else { /* PHY reset */ if (!cfg->no_pcs_sw_reset) @@ -4601,6 +4961,9 @@ static const struct of_device_id qcom_qmp_phy_of_match_table[] = { }, { .compatible = "qcom,sm8250-qmp-usb3-phy", .data = &sm8250_usb3phy_cfg, + }, { + .compatible = "qcom,sm8250-qmp-usb3-dp-phy", + /* It's a combo phy */ }, { .compatible = "qcom,sm8250-qmp-usb3-uni-phy", .data = &sm8250_usb3_uniphy_cfg, @@ -4635,6 +4998,10 @@ static const struct of_device_id qcom_qmp_combo_phy_of_match_table[] = { .compatible = "qcom,sc7180-qmp-usb3-dp-phy", .data = &sc7180_usb3dpphy_cfg, }, + { + .compatible = "qcom,sm8250-qmp-usb3-dp-phy", + .data = &sm8250_usb3dpphy_cfg, + }, { } }; diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.h b/drivers/phy/qualcomm/phy-qcom-qmp.h index 71ce3aa174ae..67bd2dd0d8c5 100644 --- a/drivers/phy/qualcomm/phy-qcom-qmp.h +++ b/drivers/phy/qualcomm/phy-qcom-qmp.h @@ -349,13 +349,13 @@ #define QPHY_V3_PCS_MISC_OSC_DTCT_MODE2_CONFIG4 0x5c #define QPHY_V3_PCS_MISC_OSC_DTCT_MODE2_CONFIG5 0x60 -/* Only for QMP V3 PHY - DP PHY registers */ -#define QSERDES_V3_DP_PHY_REVISION_ID0 0x000 -#define QSERDES_V3_DP_PHY_REVISION_ID1 0x004 -#define QSERDES_V3_DP_PHY_REVISION_ID2 0x008 -#define QSERDES_V3_DP_PHY_REVISION_ID3 0x00c -#define QSERDES_V3_DP_PHY_CFG 0x010 -#define QSERDES_V3_DP_PHY_PD_CTL 0x018 +/* QMP PHY - DP PHY registers */ +#define QSERDES_DP_PHY_REVISION_ID0 0x000 +#define QSERDES_DP_PHY_REVISION_ID1 0x004 +#define QSERDES_DP_PHY_REVISION_ID2 0x008 +#define QSERDES_DP_PHY_REVISION_ID3 0x00c +#define QSERDES_DP_PHY_CFG 0x010 +#define QSERDES_DP_PHY_PD_CTL 0x018 # define DP_PHY_PD_CTL_PWRDN 0x001 # define DP_PHY_PD_CTL_PSR_PWRDN 0x002 # define DP_PHY_PD_CTL_AUX_PWRDN 0x004 @@ -363,18 +363,19 @@ # define DP_PHY_PD_CTL_LANE_2_3_PWRDN 0x010 # define DP_PHY_PD_CTL_PLL_PWRDN 0x020 # define DP_PHY_PD_CTL_DP_CLAMP_EN 0x040 -#define QSERDES_V3_DP_PHY_MODE 0x01c -#define QSERDES_V3_DP_PHY_AUX_CFG0 0x020 -#define QSERDES_V3_DP_PHY_AUX_CFG1 0x024 -#define QSERDES_V3_DP_PHY_AUX_CFG2 0x028 -#define QSERDES_V3_DP_PHY_AUX_CFG3 0x02c -#define QSERDES_V3_DP_PHY_AUX_CFG4 0x030 -#define QSERDES_V3_DP_PHY_AUX_CFG5 0x034 -#define QSERDES_V3_DP_PHY_AUX_CFG6 0x038 -#define QSERDES_V3_DP_PHY_AUX_CFG7 0x03c -#define QSERDES_V3_DP_PHY_AUX_CFG8 0x040 -#define QSERDES_V3_DP_PHY_AUX_CFG9 0x044 +#define QSERDES_DP_PHY_MODE 0x01c +#define QSERDES_DP_PHY_AUX_CFG0 0x020 +#define QSERDES_DP_PHY_AUX_CFG1 0x024 +#define QSERDES_DP_PHY_AUX_CFG2 0x028 +#define QSERDES_DP_PHY_AUX_CFG3 0x02c +#define QSERDES_DP_PHY_AUX_CFG4 0x030 +#define QSERDES_DP_PHY_AUX_CFG5 0x034 +#define QSERDES_DP_PHY_AUX_CFG6 0x038 +#define QSERDES_DP_PHY_AUX_CFG7 0x03c +#define QSERDES_DP_PHY_AUX_CFG8 0x040 +#define QSERDES_DP_PHY_AUX_CFG9 0x044 +/* Only for QMP V3 PHY - DP PHY registers */ #define QSERDES_V3_DP_PHY_AUX_INTERRUPT_MASK 0x048 # define PHY_AUX_STOP_ERR_MASK 0x01 # define PHY_AUX_DEC_ERR_MASK 0x02 @@ -396,6 +397,7 @@ #define QSERDES_V3_DP_PHY_STATUS 0x0c0 /* Only for QMP V4 PHY - QSERDES COM registers */ +#define QSERDES_V4_COM_BG_TIMER 0x00c #define QSERDES_V4_COM_SSC_EN_CENTER 0x010 #define QSERDES_V4_COM_SSC_PER1 0x01c #define QSERDES_V4_COM_SSC_PER2 0x020 @@ -403,7 +405,9 @@ #define QSERDES_V4_COM_SSC_STEP_SIZE2_MODE0 0x028 #define QSERDES_V4_COM_SSC_STEP_SIZE1_MODE1 0x030 #define QSERDES_V4_COM_SSC_STEP_SIZE2_MODE1 0x034 +#define QSERDES_V4_COM_BIAS_EN_CLKBUFLR_EN 0x044 #define QSERDES_V4_COM_CLK_ENABLE1 0x048 +#define QSERDES_V4_COM_SYS_CLK_CTRL 0x04c #define QSERDES_V4_COM_SYSCLK_BUF_ENABLE 0x050 #define QSERDES_V4_COM_PLL_IVCO 0x058 #define QSERDES_V4_COM_CMN_IPTRIM 0x060 @@ -414,6 +418,7 @@ #define QSERDES_V4_COM_PLL_CCTRL_MODE0 0x084 #define QSERDES_V4_COM_PLL_CCTRL_MODE1 0x088 #define QSERDES_V4_COM_SYSCLK_EN_SEL 0x094 +#define QSERDES_V4_COM_RESETSM_CNTRL 0x09c #define QSERDES_V4_COM_LOCK_CMP_EN 0x0a4 #define QSERDES_V4_COM_LOCK_CMP1_MODE0 0x0ac #define QSERDES_V4_COM_LOCK_CMP2_MODE0 0x0b0 @@ -427,16 +432,24 @@ #define QSERDES_V4_COM_DIV_FRAC_START1_MODE1 0x0d8 #define QSERDES_V4_COM_DIV_FRAC_START2_MODE1 0x0dc #define QSERDES_V4_COM_DIV_FRAC_START3_MODE1 0x0e0 +#define QSERDES_V4_COM_INTEGLOOP_GAIN0_MODE0 0x0ec +#define QSERDES_V4_COM_INTEGLOOP_GAIN1_MODE0 0x0f0 +#define QSERDES_V4_COM_VCO_TUNE_CTRL 0x108 #define QSERDES_V4_COM_VCO_TUNE_MAP 0x10c #define QSERDES_V4_COM_VCO_TUNE1_MODE0 0x110 #define QSERDES_V4_COM_VCO_TUNE2_MODE0 0x114 #define QSERDES_V4_COM_VCO_TUNE1_MODE1 0x118 #define QSERDES_V4_COM_VCO_TUNE2_MODE1 0x11c #define QSERDES_V4_COM_VCO_TUNE_INITVAL2 0x124 +#define QSERDES_V4_COM_CMN_STATUS 0x140 #define QSERDES_V4_COM_CLK_SELECT 0x154 #define QSERDES_V4_COM_HSCLK_SEL 0x158 #define QSERDES_V4_COM_HSCLK_HS_SWITCH_SEL 0x15c +#define QSERDES_V4_COM_CORECLK_DIV_MODE0 0x168 #define QSERDES_V4_COM_CORECLK_DIV_MODE1 0x16c +#define QSERDES_V4_COM_CORE_CLK_EN 0x174 +#define QSERDES_V4_COM_C_READY_STATUS 0x178 +#define QSERDES_V4_COM_CMN_CONFIG 0x17c #define QSERDES_V4_COM_SVS_MODE_CLK_SEL 0x184 #define QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE1_MODE0 0x1ac #define QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE2_MODE0 0x1b0 @@ -445,19 +458,32 @@ #define QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE2_MODE1 0x1b8 /* Only for QMP V4 PHY - TX registers */ +#define QSERDES_V4_TX_CLKBUF_ENABLE 0x08 +#define QSERDES_V4_TX_TX_EMP_POST1_LVL 0x0c +#define QSERDES_V4_TX_TX_DRV_LVL 0x14 +#define QSERDES_V4_TX_RESET_TSYNC_EN 0x1c +#define QSERDES_V4_TX_PRE_STALL_LDO_BOOST_EN 0x20 +#define QSERDES_V4_TX_TX_BAND 0x24 +#define QSERDES_V4_TX_INTERFACE_SELECT 0x2c #define QSERDES_V4_TX_RES_CODE_LANE_TX 0x34 #define QSERDES_V4_TX_RES_CODE_LANE_RX 0x38 #define QSERDES_V4_TX_RES_CODE_LANE_OFFSET_TX 0x3c #define QSERDES_V4_TX_RES_CODE_LANE_OFFSET_RX 0x40 +#define QSERDES_V4_TX_TRANSCEIVER_BIAS_EN 0x54 +#define QSERDES_V4_TX_HIGHZ_DRVR_EN 0x58 +#define QSERDES_V4_TX_TX_POL_INV 0x5c +#define QSERDES_V4_TX_PARRATE_REC_DETECT_IDLE_EN 0x60 #define QSERDES_V4_TX_LANE_MODE_1 0x84 #define QSERDES_V4_TX_LANE_MODE_2 0x88 #define QSERDES_V4_TX_RCV_DETECT_LVL_2 0x9c +#define QSERDES_V4_TX_TRAN_DRVR_EMP_EN 0xb8 +#define QSERDES_V4_TX_TX_INTERFACE_MODE 0xbc #define QSERDES_V4_TX_PWM_GEAR_1_DIVIDER_BAND0_1 0xd8 #define QSERDES_V4_TX_PWM_GEAR_2_DIVIDER_BAND0_1 0xdC #define QSERDES_V4_TX_PWM_GEAR_3_DIVIDER_BAND0_1 0xe0 #define QSERDES_V4_TX_PWM_GEAR_4_DIVIDER_BAND0_1 0xe4 -#define QSERDES_V4_TX_TRAN_DRVR_EMP_EN 0xb8 -#define QSERDES_V4_TX_PI_QEC_CTRL 0x104 +#define QSERDES_V4_TX_VMODE_CTRL1 0xe8 +#define QSERDES_V4_TX_PI_QEC_CTRL 0x104 /* Only for QMP V4 PHY - RX registers */ #define QSERDES_V4_RX_UCDR_FO_GAIN 0x008 @@ -514,6 +540,17 @@ #define QSERDES_V4_RX_DCC_CTRL1 0x1bc #define QSERDES_V4_RX_VTH_CODE 0x1c4 +/* Only for QMP V4 PHY - DP PHY registers */ +#define QSERDES_V4_DP_PHY_CFG_1 0x014 +#define QSERDES_V4_DP_PHY_AUX_INTERRUPT_MASK 0x054 +#define QSERDES_V4_DP_PHY_AUX_INTERRUPT_CLEAR 0x058 +#define QSERDES_V4_DP_PHY_VCO_DIV 0x070 +#define QSERDES_V4_DP_PHY_TX0_TX1_LANE_CTL 0x078 +#define QSERDES_V4_DP_PHY_TX2_TX3_LANE_CTL 0x09c +#define QSERDES_V4_DP_PHY_SPARE0 0x0c8 +#define QSERDES_V4_DP_PHY_AUX_INTERRUPT_STATUS 0x0d8 +#define QSERDES_V4_DP_PHY_STATUS 0x0dc + /* Only for QMP V4 PHY - UFS PCS registers */ #define QPHY_V4_PCS_UFS_PHY_START 0x000 #define QPHY_V4_PCS_UFS_POWER_DOWN_CONTROL 0x004