Re: [PATCH 3/3] phy: qcom-qmp: Add QMP V4 USB3 PHY support for sm8250

From: Bjorn Andersson
Date: Fri Jun 26 2020 - 03:43:32 EST

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In reply to: Dmitry Baryshkov: "Re: [PATCH 3/3] phy: qcom-qmp: Add QMP V4 USB3 PHY support for sm8250"
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On Sat 23 May 19:14 PDT 2020, Jonathan Marek wrote:

> Add both the DP and UNI PHY for primary/secondary usb controllers.
>
> The tables are very similar to sm8150 (serdes_tbl is identical), but there
> are some differences.
>
> Signed-off-by: Jonathan Marek <jonathan@xxxxxxxx>

Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>

Regards,
Bjorn

> ---
> drivers/phy/qualcomm/phy-qcom-qmp.c | 206 ++++++++++++++++++++++++++++
> drivers/phy/qualcomm/phy-qcom-qmp.h | 2 +
> 2 files changed, 208 insertions(+)
>
> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c
> index 9367f8f793b5..8a597cedfebe 100644
> --- a/drivers/phy/qualcomm/phy-qcom-qmp.c
> +++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
> @@ -1532,6 +1532,142 @@ static const struct qmp_phy_init_tbl sm8150_usb3_uniphy_pcs_tbl[] = {
> QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCS_TX_RX_CONFIG, 0x0c),
> };
>
> +static const struct qmp_phy_init_tbl sm8250_usb3_tx_tbl[] = {
> + QMP_PHY_INIT_CFG(QSERDES_V4_TX_RES_CODE_LANE_TX, 0x60),
> + QMP_PHY_INIT_CFG(QSERDES_V4_TX_RES_CODE_LANE_RX, 0x60),
> + 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, 0x02),
> + QMP_PHY_INIT_CFG(QSERDES_V4_TX_LANE_MODE_1, 0xd5),
> + QMP_PHY_INIT_CFG(QSERDES_V4_TX_RCV_DETECT_LVL_2, 0x12),
> + QMP_PHY_INIT_CFG_LANE(QSERDES_V4_TX_PI_QEC_CTRL, 0x40, 1),
> + QMP_PHY_INIT_CFG_LANE(QSERDES_V4_TX_PI_QEC_CTRL, 0x54, 2),
> +};
> +
> +static const struct qmp_phy_init_tbl sm8250_usb3_rx_tbl[] = {
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SO_GAIN, 0x06),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FASTLOCK_FO_GAIN, 0x2f),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SO_SATURATION_AND_ENABLE, 0x7f),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FASTLOCK_COUNT_LOW, 0xff),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FASTLOCK_COUNT_HIGH, 0x0f),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_PI_CONTROLS, 0x99),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_THRESH1, 0x04),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_THRESH2, 0x08),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_GAIN1, 0x05),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_GAIN2, 0x05),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_VGA_CAL_CNTRL1, 0x54),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_VGA_CAL_CNTRL2, 0x0c),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL2, 0x0f),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL3, 0x4a),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL4, 0x0a),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_IDAC_TSETTLE_LOW, 0xc0),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_IDAC_TSETTLE_HIGH, 0x00),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQ_OFFSET_ADAPTOR_CNTRL1, 0x77),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_SIGDET_CNTRL, 0x04),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_SIGDET_DEGLITCH_CNTRL, 0x0e),
> + QMP_PHY_INIT_CFG_LANE(QSERDES_V4_RX_RX_MODE_00_LOW, 0xff, 1),
> + QMP_PHY_INIT_CFG_LANE(QSERDES_V4_RX_RX_MODE_00_LOW, 0x7f, 2),
> + QMP_PHY_INIT_CFG_LANE(QSERDES_V4_RX_RX_MODE_00_HIGH, 0x7f, 1),
> + QMP_PHY_INIT_CFG_LANE(QSERDES_V4_RX_RX_MODE_00_HIGH, 0xff, 2),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH2, 0x7f),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH3, 0x7f),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH4, 0x97),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_LOW, 0xdc),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH, 0xdc),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH2, 0x5c),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH3, 0x7b),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH4, 0xb4),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_DFE_EN_TIMER, 0x04),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_DFE_CTLE_POST_CAL_OFFSET, 0x38),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_AUX_DATA_TCOARSE_TFINE, 0xa0),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_DCC_CTRL1, 0x0c),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_GM_CAL, 0x1f),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_VTH_CODE, 0x10),
> +};
> +
> +static const struct qmp_phy_init_tbl sm8250_usb3_pcs_tbl[] = {
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG1, 0xd0),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG2, 0x07),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG3, 0x20),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG6, 0x13),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_REFGEN_REQ_CONFIG1, 0x21),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_RX_SIGDET_LVL, 0xa9),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_CDR_RESET_TIME, 0x0a),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_ALIGN_DETECT_CONFIG1, 0x88),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_ALIGN_DETECT_CONFIG2, 0x13),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCS_TX_RX_CONFIG, 0x0c),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_EQ_CONFIG1, 0x4b),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_EQ_CONFIG5, 0x10),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_USB3_LFPS_DET_HIGH_COUNT_VAL, 0xf8),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_USB3_RXEQTRAINING_DFE_TIME_S2, 0x07),
> +};
> +
> +static const struct qmp_phy_init_tbl sm8250_usb3_uniphy_tx_tbl[] = {
> + QMP_PHY_INIT_CFG(QSERDES_V4_TX_RCV_DETECT_LVL_2, 0x12),
> + QMP_PHY_INIT_CFG(QSERDES_V4_TX_LANE_MODE_1, 0xd5),
> + QMP_PHY_INIT_CFG(QSERDES_V4_TX_LANE_MODE_2, 0x82),
> + QMP_PHY_INIT_CFG(QSERDES_V4_TX_PI_QEC_CTRL, 0x40),
> + 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, 0x02),
> +};
> +
> +static const struct qmp_phy_init_tbl sm8250_usb3_uniphy_rx_tbl[] = {
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH4, 0xb8),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH3, 0xff),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH2, 0xbf),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH, 0x7f),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_LOW, 0x7f),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH4, 0xb4),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH3, 0x7b),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH2, 0x5c),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH, 0xdc),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_LOW, 0xdc),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_PI_CONTROLS, 0x99),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_THRESH1, 0x04),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_THRESH2, 0x08),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_GAIN1, 0x05),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SB2_GAIN2, 0x05),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FASTLOCK_FO_GAIN, 0x2f),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FASTLOCK_COUNT_LOW, 0xff),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FASTLOCK_COUNT_HIGH, 0x0f),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SO_SATURATION_AND_ENABLE, 0x7f),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FO_GAIN, 0x0a),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_VGA_CAL_CNTRL1, 0x54),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_VGA_CAL_CNTRL2, 0x0c),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL2, 0x0f),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL3, 0x4a),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL4, 0x0a),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_DFE_EN_TIMER, 0x04),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQ_OFFSET_ADAPTOR_CNTRL1, 0x47),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_OFFSET_ADAPTOR_CNTRL2, 0x80),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_SIGDET_CNTRL, 0x04),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_SIGDET_DEGLITCH_CNTRL, 0x0e),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_IDAC_TSETTLE_HIGH, 0x00),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_IDAC_TSETTLE_LOW, 0xc0),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_DFE_CTLE_POST_CAL_OFFSET, 0x38),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SO_GAIN, 0x06),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_DCC_CTRL1, 0x0c),
> + QMP_PHY_INIT_CFG(QSERDES_V4_RX_GM_CAL, 0x1f),
> +};
> +
> +static const struct qmp_phy_init_tbl sm8250_usb3_uniphy_pcs_tbl[] = {
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG1, 0xd0),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG2, 0x07),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG3, 0x20),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_LOCK_DETECT_CONFIG6, 0x13),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_RCVR_DTCT_DLY_P1U2_L, 0xe7),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_RCVR_DTCT_DLY_P1U2_H, 0x03),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_RX_SIGDET_LVL, 0xa9),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCS_TX_RX_CONFIG, 0x0c),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_USB3_UNI_RXEQTRAINING_DFE_TIME_S2, 0x07),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_USB3_UNI_LFPS_DET_HIGH_COUNT_VAL, 0xf8),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_CDR_RESET_TIME, 0x0a),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_ALIGN_DETECT_CONFIG1, 0x88),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_ALIGN_DETECT_CONFIG2, 0x13),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_EQ_CONFIG1, 0x4b),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_EQ_CONFIG5, 0x10),
> + QMP_PHY_INIT_CFG(QPHY_V4_PCS_REFGEN_REQ_CONFIG1, 0x21),
> +};
> +
> /* struct qmp_phy_cfg - per-PHY initialization config */
> struct qmp_phy_cfg {
> /* phy-type - PCIE/UFS/USB */
> @@ -1700,6 +1836,11 @@ static const char * const qmp_v4_phy_clk_l[] = {
> "aux", "ref_clk_src", "ref", "com_aux",
> };
>
> +/* the primary usb3 phy on sm8250 doesn't have a ref clock */
> +static const char * const qmp_v4_sm8250_usbphy_clk_l[] = {
> + "aux", "ref_clk_src", "com_aux"
> +};
> +
> static const char * const sdm845_ufs_phy_clk_l[] = {
> "ref", "ref_aux",
> };
> @@ -2147,6 +2288,65 @@ static const struct qmp_phy_cfg sm8150_usb3_uniphy_cfg = {
> .pwrdn_delay_max = POWER_DOWN_DELAY_US_MAX,
> };
>
> +static const struct qmp_phy_cfg sm8250_usb3phy_cfg = {
> + .type = PHY_TYPE_USB3,
> + .nlanes = 1,
> +
> + .serdes_tbl = sm8150_usb3_serdes_tbl,
> + .serdes_tbl_num = ARRAY_SIZE(sm8150_usb3_serdes_tbl),
> + .tx_tbl = sm8250_usb3_tx_tbl,
> + .tx_tbl_num = ARRAY_SIZE(sm8250_usb3_tx_tbl),
> + .rx_tbl = sm8250_usb3_rx_tbl,
> + .rx_tbl_num = ARRAY_SIZE(sm8250_usb3_rx_tbl),
> + .pcs_tbl = sm8250_usb3_pcs_tbl,
> + .pcs_tbl_num = ARRAY_SIZE(sm8250_usb3_pcs_tbl),
> + .clk_list = qmp_v4_sm8250_usbphy_clk_l,
> + .num_clks = ARRAY_SIZE(qmp_v4_sm8250_usbphy_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,
> +
> + .start_ctrl = SERDES_START | PCS_START,
> + .pwrdn_ctrl = SW_PWRDN,
> +
> + .has_pwrdn_delay = true,
> + .pwrdn_delay_min = POWER_DOWN_DELAY_US_MIN,
> + .pwrdn_delay_max = POWER_DOWN_DELAY_US_MAX,
> +
> + .has_phy_dp_com_ctrl = true,
> + .is_dual_lane_phy = true,
> +};
> +
> +static const struct qmp_phy_cfg sm8250_usb3_uniphy_cfg = {
> + .type = PHY_TYPE_USB3,
> + .nlanes = 1,
> +
> + .serdes_tbl = sm8150_usb3_uniphy_serdes_tbl,
> + .serdes_tbl_num = ARRAY_SIZE(sm8150_usb3_uniphy_serdes_tbl),
> + .tx_tbl = sm8250_usb3_uniphy_tx_tbl,
> + .tx_tbl_num = ARRAY_SIZE(sm8250_usb3_uniphy_tx_tbl),
> + .rx_tbl = sm8250_usb3_uniphy_rx_tbl,
> + .rx_tbl_num = ARRAY_SIZE(sm8250_usb3_uniphy_rx_tbl),
> + .pcs_tbl = sm8250_usb3_uniphy_pcs_tbl,
> + .pcs_tbl_num = ARRAY_SIZE(sm8250_usb3_uniphy_pcs_tbl),
> + .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_usb3_uniphy_regs_layout,
> +
> + .start_ctrl = SERDES_START | PCS_START,
> + .pwrdn_ctrl = SW_PWRDN,
> +
> + .has_pwrdn_delay = true,
> + .pwrdn_delay_min = POWER_DOWN_DELAY_US_MIN,
> + .pwrdn_delay_max = POWER_DOWN_DELAY_US_MAX,
> +};
> +
> static void qcom_qmp_phy_configure_lane(void __iomem *base,
> const unsigned int *regs,
> const struct qmp_phy_init_tbl tbl[],
> @@ -2924,6 +3124,12 @@ static const struct of_device_id qcom_qmp_phy_of_match_table[] = {
> }, {
> .compatible = "qcom,sm8150-qmp-usb3-uni-phy",
> .data = &sm8150_usb3_uniphy_cfg,
> + }, {
> + .compatible = "qcom,sm8250-qmp-usb3-phy",
> + .data = &sm8250_usb3phy_cfg,
> + }, {
> + .compatible = "qcom,sm8250-qmp-usb3-uni-phy",
> + .data = &sm8250_usb3_uniphy_cfg,
> },
> { },
> };
> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.h b/drivers/phy/qualcomm/phy-qcom-qmp.h
> index f39f7a968228..4277f592684b 100644
> --- a/drivers/phy/qualcomm/phy-qcom-qmp.h
> +++ b/drivers/phy/qualcomm/phy-qcom-qmp.h
> @@ -364,7 +364,9 @@
> #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_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_PWM_GEAR_1_DIVIDER_BAND0_1 0xd8
> #define QSERDES_V4_TX_PWM_GEAR_2_DIVIDER_BAND0_1 0xdC
> --
> 2.26.1
>

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