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Date: Tue, 06 Dec 2022 00:52:44 +0300
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
martin.petersen@...cle.com, jejb@...ux.ibm.com,
andersson@...nel.org, vkoul@...nel.org
CC: quic_cang@...cinc.com, quic_asutoshd@...cinc.com,
linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
linux-phy@...ts.infradead.org, linux-scsi@...r.kernel.org,
ahalaney@...hat.com, abel.vesa@...aro.org, alim.akhtar@...sung.com,
avri.altman@....com, bvanassche@....org
Subject: Re: [PATCH v4 08/23] phy: qcom-qmp-ufs: Add HS G4 mode support to SM8250 SoC
On 1 December 2022 20:43:13 GMT+03:00, Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org> wrote:
>UFS PHY in SM8250 SoC is capable of operating at HS G4 mode. Hence, add the
>required register settings using the tables_hs_g4 struct instance. This
>also requires a separate qmp_phy_cfg for SM8250 instead of reusing SM8150.
>
>Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
>Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
>---
> .../phy/qualcomm/phy-qcom-qmp-pcs-ufs-v5.h | 1 +
> drivers/phy/qualcomm/phy-qcom-qmp-ufs.c | 62 ++++++++++++++++++-
> 2 files changed, 62 insertions(+), 1 deletion(-)
>
>diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcs-ufs-v5.h b/drivers/phy/qualcomm/phy-qcom-qmp-pcs-ufs-v5.h
>index bcca23493b7e..3aa4232f84a6 100644
>--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcs-ufs-v5.h
>+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcs-ufs-v5.h
>@@ -13,6 +13,7 @@
> #define QPHY_V5_PCS_UFS_PLL_CNTL 0x02c
> #define QPHY_V5_PCS_UFS_TX_LARGE_AMP_DRV_LVL 0x030
> #define QPHY_V5_PCS_UFS_TX_SMALL_AMP_DRV_LVL 0x038
>+#define QPHY_V5_PCS_UFS_BIST_FIXED_PAT_CTRL 0x060
> #define QPHY_V5_PCS_UFS_TX_HSGEAR_CAPABILITY 0x074
> #define QPHY_V5_PCS_UFS_RX_HSGEAR_CAPABILITY 0x0b4
> #define QPHY_V5_PCS_UFS_DEBUG_BUS_CLKSEL 0x124
>diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
>index 269f96a0f752..d5324c4e8513 100644
>--- a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
>+++ b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
>@@ -449,6 +449,34 @@ static const struct qmp_phy_init_tbl sm8150_ufsphy_hs_g4_pcs[] = {
> QMP_PHY_INIT_CFG(QPHY_V4_PCS_UFS_BIST_FIXED_PAT_CTRL, 0x0a),
> };
>
>+static const struct qmp_phy_init_tbl sm8250_ufsphy_hs_g4_tx[] = {
>+ QMP_PHY_INIT_CFG(QSERDES_V4_TX_LANE_MODE_1, 0xe5),
>+};
>+
>+static const struct qmp_phy_init_tbl sm8250_ufsphy_hs_g4_rx[] = {
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SO_SATURATION_AND_ENABLE, 0x5a),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_PI_CTRL2, 0x81),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FO_GAIN, 0x0e),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_TERM_BW, 0x6f),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL1, 0x04),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL2, 0x00),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL3, 0x09),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL4, 0x07),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQ_OFFSET_ADAPTOR_CNTRL1, 0x17),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_IDAC_MEASURE_TIME, 0x20),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_IDAC_TSETTLE_LOW, 0x80),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_IDAC_TSETTLE_HIGH, 0x01),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_LOW, 0x3f),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH, 0xff),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH2, 0xff),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH3, 0x7f),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH4, 0x2c),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_LOW, 0x6d),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH, 0x6d),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH2, 0xed),
>+ QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH4, 0x3c),
>+};
>+
> static const struct qmp_phy_init_tbl sm8350_ufsphy_serdes[] = {
> QMP_PHY_INIT_CFG(QSERDES_V5_COM_SYSCLK_EN_SEL, 0xd9),
> QMP_PHY_INIT_CFG(QSERDES_V5_COM_HSCLK_SEL, 0x11),
>@@ -805,6 +833,38 @@ static const struct qmp_phy_cfg sm8150_ufsphy_cfg = {
> .regs = sm8150_ufsphy_regs_layout,
> };
>
>+static const struct qmp_phy_cfg sm8250_ufsphy_cfg = {
>+ .lanes = 2,
>+
>+ .tbls = {
>+ .serdes = sm8150_ufsphy_serdes,
>+ .serdes_num = ARRAY_SIZE(sm8150_ufsphy_serdes),
>+ .tx = sm8150_ufsphy_tx,
>+ .tx_num = ARRAY_SIZE(sm8150_ufsphy_tx),
>+ .rx = sm8150_ufsphy_rx,
>+ .rx_num = ARRAY_SIZE(sm8150_ufsphy_rx),
>+ .pcs = sm8150_ufsphy_pcs,
>+ .pcs_num = ARRAY_SIZE(sm8150_ufsphy_pcs),
>+ },
>+ .tbls_hs_b = {
>+ .serdes = sm8150_ufsphy_hs_b_serdes,
>+ .serdes_num = ARRAY_SIZE(sm8150_ufsphy_hs_b_serdes),
>+ },
>+ .tbls_hs_g4 = {
>+ .tx = sm8250_ufsphy_hs_g4_tx,
>+ .tx_num = ARRAY_SIZE(sm8250_ufsphy_hs_g4_tx),
>+ .rx = sm8250_ufsphy_hs_g4_rx,
>+ .rx_num = ARRAY_SIZE(sm8250_ufsphy_hs_g4_rx),
>+ .pcs = sm8150_ufsphy_hs_g4_pcs,
>+ .pcs_num = ARRAY_SIZE(sm8150_ufsphy_hs_g4_pcs),
>+ },
>+ .clk_list = sdm845_ufs_phy_clk_l,
>+ .num_clks = ARRAY_SIZE(sdm845_ufs_phy_clk_l),
>+ .vreg_list = qmp_phy_vreg_l,
>+ .num_vregs = ARRAY_SIZE(qmp_phy_vreg_l),
>+ .regs = sm8150_ufsphy_regs_layout,
>+};
>+
> static const struct qmp_phy_cfg sm8350_ufsphy_cfg = {
> .lanes = 2,
>
>@@ -1297,7 +1357,7 @@ static const struct of_device_id qmp_ufs_of_match_table[] = {
> .data = &sm8150_ufsphy_cfg,
> }, {
> .compatible = "qcom,sm8250-qmp-ufs-phy",
>- .data = &sm8150_ufsphy_cfg,
>+ .data = &sm8250_ufsphy_cfg,
> }, {
> .compatible = "qcom,sm8350-qmp-ufs-phy",
> .data = &sm8350_ufsphy_cfg,
--
With best wishes
Dmitry
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