linux-kernel - [PATCH v7 09/10] phy: qualcomm: phy-qcom-qmp-ufs: Rectify SM8550 UFS HS-G4 PHY Settings

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Date:   Thu, 30 Nov 2023 21:03:19 -0800
From:   Can Guo <quic_cang@...cinc.com>
To:     quic_cang@...cinc.com, bvanassche@....org, mani@...nel.org,
        adrian.hunter@...el.com, vkoul@...nel.org, beanhuo@...ron.com,
        avri.altman@....com, junwoo80.lee@...sung.com,
        martin.petersen@...cle.com
Cc:     linux-scsi@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        Johan Hovold <johan+linaro@...nel.org>,
        Abel Vesa <abel.vesa@...aro.org>,
        linux-phy@...ts.infradead.org (open list:GENERIC PHY FRAMEWORK),
        linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v7 09/10] phy: qualcomm: phy-qcom-qmp-ufs: Rectify SM8550 UFS HS-G4 PHY Settings

The registers, which are being touched in current SM8550 UFS PHY settings,
and the values being programmed are mainly the ones working for HS-G4 mode,
meanwhile, there are also a few ones somehow taken from HS-G5 PHY settings.
However, even consider HS-G4 mode only, some of them are incorrect and some
are missing. Rectify the HS-G4 PHY settings by strictly aligning with the
SM8550 UFS PHY Hardware Programming Guide suggested HS-G4 PHY settings.

Fixes: 1679bfef906f ("phy: qcom-qmp-ufs: Add SM8550 support")
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Reviewed-by: Abel Vesa <abel.vesa@...aro.org>
Reviewed-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
Signed-off-by: Can Guo <quic_cang@...cinc.com>
---
 .../qualcomm/phy-qcom-qmp-qserdes-txrx-ufs-v6.h    |  1 +
 drivers/phy/qualcomm/phy-qcom-qmp-ufs.c            | 28 +++++++++++++++-------
 2 files changed, 20 insertions(+), 9 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-qserdes-txrx-ufs-v6.h b/drivers/phy/qualcomm/phy-qcom-qmp-qserdes-txrx-ufs-v6.h
index ae220fd..35d497f 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-qserdes-txrx-ufs-v6.h
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-qserdes-txrx-ufs-v6.h
@@ -11,6 +11,7 @@
 #define QSERDES_UFS_V6_TX_RES_CODE_LANE_OFFSET_TX		0x30
 #define QSERDES_UFS_V6_TX_RES_CODE_LANE_OFFSET_RX		0x34
 #define QSERDES_UFS_V6_TX_LANE_MODE_1				0x7c
+#define QSERDES_UFS_V6_TX_FR_DCC_CTRL				0x108
 
 #define QSERDES_UFS_V6_RX_UCDR_FASTLOCK_FO_GAIN_RATE2		0x08
 #define QSERDES_UFS_V6_RX_UCDR_FASTLOCK_FO_GAIN_RATE4		0x10
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
index 5f79d18..3c2e625 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
@@ -763,22 +763,26 @@ static const struct qmp_phy_init_tbl sm8550_ufsphy_serdes[] = {
 	QMP_PHY_INIT_CFG(QSERDES_V6_COM_PLL_CCTRL_MODE0, 0x14),
 	QMP_PHY_INIT_CFG(QSERDES_V6_COM_LOCK_CMP1_MODE0, 0x7f),
 	QMP_PHY_INIT_CFG(QSERDES_V6_COM_LOCK_CMP2_MODE0, 0x06),
-	QMP_PHY_INIT_CFG(QSERDES_V6_COM_DEC_START_MODE0, 0x4c),
-	QMP_PHY_INIT_CFG(QSERDES_V6_COM_CP_CTRL_MODE0, 0x0a),
-	QMP_PHY_INIT_CFG(QSERDES_V6_COM_PLL_RCTRL_MODE0, 0x18),
-	QMP_PHY_INIT_CFG(QSERDES_V6_COM_PLL_CCTRL_MODE0, 0x14),
-	QMP_PHY_INIT_CFG(QSERDES_V6_COM_LOCK_CMP1_MODE0, 0x99),
-	QMP_PHY_INIT_CFG(QSERDES_V6_COM_LOCK_CMP2_MODE0, 0x07),
+	QMP_PHY_INIT_CFG(QSERDES_V6_COM_DEC_START_MODE1, 0x4c),
+	QMP_PHY_INIT_CFG(QSERDES_V6_COM_CP_CTRL_MODE1, 0x0a),
+	QMP_PHY_INIT_CFG(QSERDES_V6_COM_PLL_RCTRL_MODE1, 0x18),
+	QMP_PHY_INIT_CFG(QSERDES_V6_COM_PLL_CCTRL_MODE1, 0x14),
+	QMP_PHY_INIT_CFG(QSERDES_V6_COM_LOCK_CMP1_MODE1, 0x99),
+	QMP_PHY_INIT_CFG(QSERDES_V6_COM_LOCK_CMP2_MODE1, 0x07),
+};
+
+static const struct qmp_phy_init_tbl sm8550_ufsphy_hs_b_serdes[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V6_COM_VCO_TUNE_MAP, 0x44),
 };
 
 static const struct qmp_phy_init_tbl sm8550_ufsphy_tx[] = {
-	QMP_PHY_INIT_CFG(QSERDES_V6_TX_LANE_MODE_1, 0x05),
+	QMP_PHY_INIT_CFG(QSERDES_UFS_V6_TX_LANE_MODE_1, 0x05),
 	QMP_PHY_INIT_CFG(QSERDES_UFS_V6_TX_RES_CODE_LANE_OFFSET_TX, 0x07),
+	QMP_PHY_INIT_CFG(QSERDES_UFS_V6_TX_FR_DCC_CTRL, 0x4c),
 };
 
 static const struct qmp_phy_init_tbl sm8550_ufsphy_rx[] = {
-	QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_UCDR_FASTLOCK_FO_GAIN_RATE2, 0x0c),
-	QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_UCDR_FASTLOCK_FO_GAIN_RATE4, 0x0f),
+	QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_UCDR_FO_GAIN_RATE2, 0x0c),
 	QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_VGA_CAL_MAN_VAL, 0x0e),
 
 	QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_MODE_RATE_0_1_B0, 0xc2),
@@ -801,6 +805,8 @@ static const struct qmp_phy_init_tbl sm8550_ufsphy_pcs[] = {
 	QMP_PHY_INIT_CFG(QPHY_V6_PCS_UFS_TX_MID_TERM_CTRL1, 0x43),
 	QMP_PHY_INIT_CFG(QPHY_V6_PCS_UFS_PLL_CNTL, 0x2b),
 	QMP_PHY_INIT_CFG(QPHY_V6_PCS_UFS_MULTI_LANE_CTRL1, 0x02),
+	QMP_PHY_INIT_CFG(QPHY_V6_PCS_UFS_TX_HSGEAR_CAPABILITY, 0x04),
+	QMP_PHY_INIT_CFG(QPHY_V6_PCS_UFS_RX_HSGEAR_CAPABILITY, 0x04),
 };
 
 static const struct qmp_phy_init_tbl sm8650_ufsphy_serdes[] = {
@@ -1357,6 +1363,10 @@ static const struct qmp_phy_cfg sm8550_ufsphy_cfg = {
 		.pcs		= sm8550_ufsphy_pcs,
 		.pcs_num	= ARRAY_SIZE(sm8550_ufsphy_pcs),
 	},
+	.tbls_hs_b = {
+		.serdes		= sm8550_ufsphy_hs_b_serdes,
+		.serdes_num	= ARRAY_SIZE(sm8550_ufsphy_hs_b_serdes),
+	},
 	.clk_list		= sdm845_ufs_phy_clk_l,
 	.num_clks		= ARRAY_SIZE(sdm845_ufs_phy_clk_l),
 	.vreg_list		= qmp_phy_vreg_l,
-- 
2.7.4