[PATCH v3 0/2] Support for Qualcomm UFS QMP PHY on SDM845

[PATCH v3 0/2] Support for Qualcomm UFS QMP PHY on SDM845

[Can Guo]

This patch series adds support for UFS QMP PHY on SDM845 and the
compatible string for it. This patch series depends on the current
proposed QMP V3 USB3 UNI PHY support for sdm845 driver [1] and also based
on the DT bindings for the QMP V3 USB3 PHYs based dirver [2]. This series
can only be merged once the dependent patches do.
[1] http://lists-archives.com/linux-kernel/29071659-dt-bindings-phy-qcom-qmp-update-bindings-for-sdm845.html
[2] http://lists-archives.com/linux-kernel/29071660-phy-qcom-qmp-add-qmp-v3-usb3-uni-phy-support-for-sdm845.html

Changes since v2:
- Incorporated review comments from Vivek and Rob.
- Remove "ref_aux" from sdm845 ufs phy clock list structure.

Changes since v1:
- Incorporated review comments from Vivek and Manu.
- Update the commit title of patch 2.

Can Guo (2):
  phy: Add QMP phy based UFS phy support for sdm845
  dt-bindings: phy-qcom-qmp: Add UFS phy compatible string for sdm845

 .../devicetree/bindings/phy/qcom-qmp-phy.txt       |   3 +-
 drivers/phy/qualcomm/phy-qcom-qmp.c                | 130 +++++++++++++++++++--
 drivers/phy/qualcomm/phy-qcom-qmp.h                |   8 ++
 3 files changed, 129 insertions(+), 12 deletions(-)

-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

[PATCH v3 1/2] phy: Add QMP phy based UFS phy support for sdm845

[Can Guo]

Add UFS PHY support to make SDM845 UFS work with common PHY framework.

Signed-off-by: Can Guo <cang@codeaurora.org>
---
 drivers/phy/qualcomm/phy-qcom-qmp.c | 130 +++++++++++++++++++++++++++++++++---
 drivers/phy/qualcomm/phy-qcom-qmp.h |   8 +++
 2 files changed, 127 insertions(+), 11 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c
index 5cf2c3c..0b58030 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
@@ -156,6 +156,11 @@ enum qphy_reg_layout {
 	[QPHY_PCS_LFPS_RXTERM_IRQ_STATUS] = 0x170,
 };
 
+static const unsigned int sdm845_ufsphy_regs_layout[] = {
+	[QPHY_START_CTRL]		= 0x00,
+	[QPHY_PCS_READY_STATUS]		= 0x168,
+};
+
 static const struct qmp_phy_init_tbl msm8996_pcie_serdes_tbl[] = {
 	QMP_PHY_INIT_CFG(QSERDES_COM_BIAS_EN_CLKBUFLR_EN, 0x1c),
 	QMP_PHY_INIT_CFG(QSERDES_COM_CLK_ENABLE1, 0x10),
@@ -601,6 +606,73 @@ enum qphy_reg_layout {
 	QMP_PHY_INIT_CFG(QPHY_V3_PCS_REFGEN_REQ_CONFIG2, 0x60),
 };
 
+static const struct qmp_phy_init_tbl sdm845_ufsphy_serdes_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_SYS_CLK_CTRL, 0x02),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_BG_TIMER, 0x0a),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_IVCO, 0x0f),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_CMN_CONFIG, 0x06),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_SYSCLK_EN_SEL, 0xd5),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_RESETSM_CNTRL, 0x20),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_CLK_SELECT, 0x30),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_HSCLK_SEL, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP_EN, 0x01),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_CTRL, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_CORE_CLK_EN, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_MAP, 0x04),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_SVS_MODE_CLK_SEL, 0x05),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_INITVAL1, 0xff),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_INITVAL2, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_DEC_START_MODE0, 0x82),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_CP_CTRL_MODE0, 0x06),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_RCTRL_MODE0, 0x16),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_CCTRL_MODE0, 0x36),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN0_MODE0, 0x3f),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN1_MODE0, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE1_MODE0, 0xda),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE2_MODE0, 0x01),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP1_MODE0, 0xff),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP2_MODE0, 0x0c),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_DEC_START_MODE1, 0x98),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_CP_CTRL_MODE1, 0x06),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_RCTRL_MODE1, 0x16),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_CCTRL_MODE1, 0x36),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN0_MODE1, 0x3f),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN1_MODE1, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE1_MODE1, 0xc1),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE2_MODE1, 0x00),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP1_MODE1, 0x32),
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP2_MODE1, 0x0f),
+
+	/* Rate B */
+	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_MAP, 0x44),
+};
+
+static const struct qmp_phy_init_tbl sdm845_ufsphy_tx_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V3_TX_LANE_MODE_1, 0x06),
+};
+
+static const struct qmp_phy_init_tbl sdm845_ufsphy_rx_tbl[] = {
+	QMP_PHY_INIT_CFG(QSERDES_V3_RX_SIGDET_LVL, 0x24),
+	QMP_PHY_INIT_CFG(QSERDES_V3_RX_SIGDET_CNTRL, 0x0f),
+	QMP_PHY_INIT_CFG(QSERDES_V3_RX_SIGDET_DEGLITCH_CNTRL, 0x1e),
+	QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_INTERFACE_MODE, 0x40),
+	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_FASTLOCK_FO_GAIN, 0x0b),
+	QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_TERM_BW, 0x5b),
+	QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_EQU_ADAPTOR_CNTRL2, 0x06),
+	QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_EQU_ADAPTOR_CNTRL3, 0x04),
+	QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_EQU_ADAPTOR_CNTRL4, 0x1d),
+	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SVS_SO_GAIN_HALF, 0x04),
+	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SVS_SO_GAIN_QUARTER, 0x04),
+	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SVS_SO_GAIN, 0x04),
+	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SO_SATURATION_AND_ENABLE, 0x4b),
+	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_PI_CONTROLS, 0x81),
+	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_FASTLOCK_COUNT_LOW, 0x80),
+};
+
+static const struct qmp_phy_init_tbl sdm845_ufsphy_pcs_tbl[] = {
+	QMP_PHY_INIT_CFG(QPHY_V3_PCS_POWER_DOWN_CONTROL, 0x01),
+	QMP_PHY_INIT_CFG(QPHY_V3_PCS_MULTI_LANE_CTRL1, 0x02),
+};
 
 /* struct qmp_phy_cfg - per-PHY initialization config */
 struct qmp_phy_cfg {
@@ -652,6 +724,9 @@ struct qmp_phy_cfg {
 	/* Register offset of secondary tx/rx lanes for USB DP combo PHY */
 	unsigned int tx_b_lane_offset;
 	unsigned int rx_b_lane_offset;
+
+	/* true, if PCS block has no separate SW_RESET register */
+	bool skip_sw_rst;
 };
 
 /**
@@ -748,6 +823,10 @@ static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val)
 	"aux", "cfg_ahb", "ref", "com_aux",
 };
 
+static const char * const sdm845_ufs_phy_clk_l[] = {
+	"ref",
+};
+
 /* list of resets */
 static const char * const msm8996_pciephy_reset_l[] = {
 	"phy", "common", "cfg",
@@ -758,7 +837,7 @@ static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val)
 };
 
 /* list of regulators */
-static const char * const msm8996_phy_vreg_l[] = {
+static const char * const qmp_phy_vreg_l[] = {
 	"vdda-phy", "vdda-pll",
 };
 
@@ -778,8 +857,8 @@ static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val)
 	.num_clks		= ARRAY_SIZE(msm8996_phy_clk_l),
 	.reset_list		= msm8996_pciephy_reset_l,
 	.num_resets		= ARRAY_SIZE(msm8996_pciephy_reset_l),
-	.vreg_list		= msm8996_phy_vreg_l,
-	.num_vregs		= ARRAY_SIZE(msm8996_phy_vreg_l),
+	.vreg_list		= qmp_phy_vreg_l,
+	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
 	.regs			= pciephy_regs_layout,
 
 	.start_ctrl		= PCS_START | PLL_READY_GATE_EN,
@@ -809,8 +888,8 @@ static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val)
 	.num_clks		= ARRAY_SIZE(msm8996_phy_clk_l),
 	.reset_list		= msm8996_usb3phy_reset_l,
 	.num_resets		= ARRAY_SIZE(msm8996_usb3phy_reset_l),
-	.vreg_list		= msm8996_phy_vreg_l,
-	.num_vregs		= ARRAY_SIZE(msm8996_phy_vreg_l),
+	.vreg_list		= qmp_phy_vreg_l,
+	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
 	.regs			= usb3phy_regs_layout,
 
 	.start_ctrl		= SERDES_START | PCS_START,
@@ -870,8 +949,8 @@ static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val)
 	.num_clks		= ARRAY_SIZE(qmp_v3_phy_clk_l),
 	.reset_list		= msm8996_usb3phy_reset_l,
 	.num_resets		= ARRAY_SIZE(msm8996_usb3phy_reset_l),
-	.vreg_list		= msm8996_phy_vreg_l,
-	.num_vregs		= ARRAY_SIZE(msm8996_phy_vreg_l),
+	.vreg_list		= qmp_phy_vreg_l,
+	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
 	.regs			= qmp_v3_usb3phy_regs_layout,
 
 	.start_ctrl		= SERDES_START | PCS_START,
@@ -903,8 +982,8 @@ static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val)
 	.num_clks		= ARRAY_SIZE(qmp_v3_phy_clk_l),
 	.reset_list		= msm8996_usb3phy_reset_l,
 	.num_resets		= ARRAY_SIZE(msm8996_usb3phy_reset_l),
-	.vreg_list		= msm8996_phy_vreg_l,
-	.num_vregs		= ARRAY_SIZE(msm8996_phy_vreg_l),
+	.vreg_list		= qmp_phy_vreg_l,
+	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
 	.regs			= qmp_v3_usb3phy_regs_layout,
 
 	.start_ctrl		= SERDES_START | PCS_START,
@@ -916,6 +995,30 @@ static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val)
 	.pwrdn_delay_max	= POWER_DOWN_DELAY_US_MAX,
 };
 
+static const struct qmp_phy_cfg sdm845_ufsphy_cfg = {
+	.type			= PHY_TYPE_UFS,
+	.nlanes			= 2,
+
+	.serdes_tbl		= sdm845_ufsphy_serdes_tbl,
+	.serdes_tbl_num		= ARRAY_SIZE(sdm845_ufsphy_serdes_tbl),
+	.tx_tbl			= sdm845_ufsphy_tx_tbl,
+	.tx_tbl_num		= ARRAY_SIZE(sdm845_ufsphy_tx_tbl),
+	.rx_tbl			= sdm845_ufsphy_rx_tbl,
+	.rx_tbl_num		= ARRAY_SIZE(sdm845_ufsphy_rx_tbl),
+	.pcs_tbl		= sdm845_ufsphy_pcs_tbl,
+	.pcs_tbl_num		= ARRAY_SIZE(sdm845_ufsphy_pcs_tbl),
+	.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			= sdm845_ufsphy_regs_layout,
+
+	.start_ctrl		= SERDES_START,
+	.pwrdn_ctrl		= SW_PWRDN,
+	.mask_pcs_ready		= PCS_READY,
+	.skip_sw_rst		= true,
+};
+
 static void qcom_qmp_phy_configure(void __iomem *base,
 				   const unsigned int *regs,
 				   const struct qmp_phy_init_tbl tbl[],
@@ -1140,7 +1243,8 @@ static int qcom_qmp_phy_init(struct phy *phy)
 		usleep_range(cfg->pwrdn_delay_min, cfg->pwrdn_delay_max);
 
 	/* Pull PHY out of reset state */
-	qphy_clrbits(pcs, cfg->regs[QPHY_SW_RESET], SW_RESET);
+	if (!cfg->skip_sw_rst)
+		qphy_clrbits(pcs, cfg->regs[QPHY_SW_RESET], SW_RESET);
 	if (cfg->has_phy_dp_com_ctrl)
 		qphy_clrbits(dp_com, QPHY_V3_DP_COM_SW_RESET, SW_RESET);
 
@@ -1178,7 +1282,8 @@ static int qcom_qmp_phy_exit(struct phy *phy)
 	clk_disable_unprepare(qphy->pipe_clk);
 
 	/* PHY reset */
-	qphy_setbits(qphy->pcs, cfg->regs[QPHY_SW_RESET], SW_RESET);
+	if (!cfg->skip_sw_rst)
+		qphy_setbits(qphy->pcs, cfg->regs[QPHY_SW_RESET], SW_RESET);
 
 	/* stop SerDes and Phy-Coding-Sublayer */
 	qphy_clrbits(qphy->pcs, cfg->regs[QPHY_START_CTRL], cfg->start_ctrl);
@@ -1531,6 +1636,9 @@ int qcom_qmp_phy_create(struct device *dev, struct device_node *np, int id)
 	}, {
 		.compatible = "qcom,sdm845-qmp-usb3-uni-phy",
 		.data = &qmp_v3_usb3_uniphy_cfg,
+	}, {
+		.compatible = "qcom,sdm845-qmp-ufs-phy",
+		.data = &sdm845_ufsphy_cfg,
 	},
 	{ },
 };
diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.h b/drivers/phy/qualcomm/phy-qcom-qmp.h
index 5d78d43..3cbcfe1 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp.h
+++ b/drivers/phy/qualcomm/phy-qcom-qmp.h
@@ -184,6 +184,8 @@
 #define QSERDES_V3_COM_VCO_TUNE2_MODE0			0x0f8
 #define QSERDES_V3_COM_VCO_TUNE1_MODE1			0x0fc
 #define QSERDES_V3_COM_VCO_TUNE2_MODE1			0x100
+#define QSERDES_V3_COM_VCO_TUNE_INITVAL1		0x104
+#define QSERDES_V3_COM_VCO_TUNE_INITVAL2		0x108
 #define QSERDES_V3_COM_VCO_TUNE_TIMER1			0x11c
 #define QSERDES_V3_COM_VCO_TUNE_TIMER2			0x120
 #define QSERDES_V3_COM_CLK_SELECT			0x138
@@ -211,8 +213,13 @@
 /* Only for QMP V3 PHY - RX registers */
 #define QSERDES_V3_RX_UCDR_SO_GAIN_HALF			0x00c
 #define QSERDES_V3_RX_UCDR_SO_GAIN			0x014
+#define QSERDES_V3_RX_UCDR_SVS_SO_GAIN_HALF		0x024
+#define QSERDES_V3_RX_UCDR_SVS_SO_GAIN_QUARTER		0x028
+#define QSERDES_V3_RX_UCDR_SVS_SO_GAIN			0x02c
 #define QSERDES_V3_RX_UCDR_FASTLOCK_FO_GAIN		0x030
 #define QSERDES_V3_RX_UCDR_SO_SATURATION_AND_ENABLE	0x034
+#define QSERDES_V3_RX_UCDR_FASTLOCK_COUNT_LOW		0x03c
+#define QSERDES_V3_RX_UCDR_PI_CONTROLS			0x044
 #define QSERDES_V3_RX_RX_TERM_BW			0x07c
 #define QSERDES_V3_RX_VGA_CAL_CNTRL1			0x0bc
 #define QSERDES_V3_RX_VGA_CAL_CNTRL2			0x0c0
@@ -275,6 +282,7 @@
 #define QPHY_V3_PCS_FLL_CNT_VAL_L			0x0cc
 #define QPHY_V3_PCS_FLL_CNT_VAL_H_TOL			0x0d0
 #define QPHY_V3_PCS_FLL_MAN_CODE			0x0d4
+#define QPHY_V3_PCS_MULTI_LANE_CTRL1			0x1c4
 #define QPHY_V3_PCS_RX_SIGDET_LVL			0x1d8
 #define QPHY_V3_PCS_REFGEN_REQ_CONFIG1			0x20c
 #define QPHY_V3_PCS_REFGEN_REQ_CONFIG2			0x210
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

Re: [PATCH v3 1/2] phy: Add QMP phy based UFS phy support for sdm845

[Vivek Gautam]

Hi Can,


On 3/27/2018 12:48 PM, Can Guo wrote:
> Add UFS PHY support to make SDM845 UFS work with common PHY framework.
>
> Signed-off-by: Can Guo <cang@codeaurora.org>
> ---
>   drivers/phy/qualcomm/phy-qcom-qmp.c | 130 +++++++++++++++++++++++++++++++++---
>   drivers/phy/qualcomm/phy-qcom-qmp.h |   8 +++
>   2 files changed, 127 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c b/drivers/phy/qualcomm/phy-qcom-qmp.c
> index 5cf2c3c..0b58030 100644
> --- a/drivers/phy/qualcomm/phy-qcom-qmp.c
> +++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
> @@ -156,6 +156,11 @@ enum qphy_reg_layout {
>   	[QPHY_PCS_LFPS_RXTERM_IRQ_STATUS] = 0x170,
>   };
>   
> +static const unsigned int sdm845_ufsphy_regs_layout[] = {
> +	[QPHY_START_CTRL]		= 0x00,
> +	[QPHY_PCS_READY_STATUS]		= 0x168,
> +};
> +
>   static const struct qmp_phy_init_tbl msm8996_pcie_serdes_tbl[] = {
>   	QMP_PHY_INIT_CFG(QSERDES_COM_BIAS_EN_CLKBUFLR_EN, 0x1c),
>   	QMP_PHY_INIT_CFG(QSERDES_COM_CLK_ENABLE1, 0x10),
> @@ -601,6 +606,73 @@ enum qphy_reg_layout {
>   	QMP_PHY_INIT_CFG(QPHY_V3_PCS_REFGEN_REQ_CONFIG2, 0x60),
>   };
>   
> +static const struct qmp_phy_init_tbl sdm845_ufsphy_serdes_tbl[] = {
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_SYS_CLK_CTRL, 0x02),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_BG_TIMER, 0x0a),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_IVCO, 0x0f),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_CMN_CONFIG, 0x06),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_SYSCLK_EN_SEL, 0xd5),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_RESETSM_CNTRL, 0x20),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_CLK_SELECT, 0x30),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_HSCLK_SEL, 0x00),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP_EN, 0x01),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_CTRL, 0x00),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_CORE_CLK_EN, 0x00),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_MAP, 0x04),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_SVS_MODE_CLK_SEL, 0x05),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_INITVAL1, 0xff),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_INITVAL2, 0x00),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_DEC_START_MODE0, 0x82),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_CP_CTRL_MODE0, 0x06),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_RCTRL_MODE0, 0x16),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_CCTRL_MODE0, 0x36),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN0_MODE0, 0x3f),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN1_MODE0, 0x00),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE1_MODE0, 0xda),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE2_MODE0, 0x01),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP1_MODE0, 0xff),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP2_MODE0, 0x0c),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_DEC_START_MODE1, 0x98),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_CP_CTRL_MODE1, 0x06),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_RCTRL_MODE1, 0x16),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_CCTRL_MODE1, 0x36),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN0_MODE1, 0x3f),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN1_MODE1, 0x00),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE1_MODE1, 0xc1),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE2_MODE1, 0x00),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP1_MODE1, 0x32),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP2_MODE1, 0x0f),
> +
> +	/* Rate B */
> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_MAP, 0x44),
> +};
> +
> +static const struct qmp_phy_init_tbl sdm845_ufsphy_tx_tbl[] = {
> +	QMP_PHY_INIT_CFG(QSERDES_V3_TX_LANE_MODE_1, 0x06),
> +};
> +
> +static const struct qmp_phy_init_tbl sdm845_ufsphy_rx_tbl[] = {
> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_SIGDET_LVL, 0x24),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_SIGDET_CNTRL, 0x0f),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_SIGDET_DEGLITCH_CNTRL, 0x1e),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_INTERFACE_MODE, 0x40),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_FASTLOCK_FO_GAIN, 0x0b),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_TERM_BW, 0x5b),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_EQU_ADAPTOR_CNTRL2, 0x06),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_EQU_ADAPTOR_CNTRL3, 0x04),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_EQU_ADAPTOR_CNTRL4, 0x1d),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SVS_SO_GAIN_HALF, 0x04),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SVS_SO_GAIN_QUARTER, 0x04),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SVS_SO_GAIN, 0x04),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SO_SATURATION_AND_ENABLE, 0x4b),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_PI_CONTROLS, 0x81),
> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_FASTLOCK_COUNT_LOW, 0x80),
> +};
> +
> +static const struct qmp_phy_init_tbl sdm845_ufsphy_pcs_tbl[] = {
> +	QMP_PHY_INIT_CFG(QPHY_V3_PCS_POWER_DOWN_CONTROL, 0x01),
> +	QMP_PHY_INIT_CFG(QPHY_V3_PCS_MULTI_LANE_CTRL1, 0x02),
> +};
>   
>   /* struct qmp_phy_cfg - per-PHY initialization config */
>   struct qmp_phy_cfg {
> @@ -652,6 +724,9 @@ struct qmp_phy_cfg {
>   	/* Register offset of secondary tx/rx lanes for USB DP combo PHY */
>   	unsigned int tx_b_lane_offset;
>   	unsigned int rx_b_lane_offset;
> +
> +	/* true, if PCS block has no separate SW_RESET register */
> +	bool skip_sw_rst;
>   };
>   
>   /**
> @@ -748,6 +823,10 @@ static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val)
>   	"aux", "cfg_ahb", "ref", "com_aux",
>   };
>   
> +static const char * const sdm845_ufs_phy_clk_l[] = {
> +	"ref",

did you miss adding 'ref_aux' clock here as in the v2 version?
Rest looks good. After this change, you can add my reviewed-by
Reviewed-by: Vivek Gautam <vivek.gautam@codeaurora.org>

Thanks
Vivek
> +};
> +
>   /* list of resets */
>   static const char * const msm8996_pciephy_reset_l[] = {
>   	"phy", "common", "cfg",
> @@ -758,7 +837,7 @@ static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val)
>   };
>   
>   /* list of regulators */
> -static const char * const msm8996_phy_vreg_l[] = {
> +static const char * const qmp_phy_vreg_l[] = {
>   	"vdda-phy", "vdda-pll",
>   };
>   
> @@ -778,8 +857,8 @@ static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val)
>   	.num_clks		= ARRAY_SIZE(msm8996_phy_clk_l),
>   	.reset_list		= msm8996_pciephy_reset_l,
>   	.num_resets		= ARRAY_SIZE(msm8996_pciephy_reset_l),
> -	.vreg_list		= msm8996_phy_vreg_l,
> -	.num_vregs		= ARRAY_SIZE(msm8996_phy_vreg_l),
> +	.vreg_list		= qmp_phy_vreg_l,
> +	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
>   	.regs			= pciephy_regs_layout,
>   
>   	.start_ctrl		= PCS_START | PLL_READY_GATE_EN,
> @@ -809,8 +888,8 @@ static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val)
>   	.num_clks		= ARRAY_SIZE(msm8996_phy_clk_l),
>   	.reset_list		= msm8996_usb3phy_reset_l,
>   	.num_resets		= ARRAY_SIZE(msm8996_usb3phy_reset_l),
> -	.vreg_list		= msm8996_phy_vreg_l,
> -	.num_vregs		= ARRAY_SIZE(msm8996_phy_vreg_l),
> +	.vreg_list		= qmp_phy_vreg_l,
> +	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
>   	.regs			= usb3phy_regs_layout,
>   
>   	.start_ctrl		= SERDES_START | PCS_START,
> @@ -870,8 +949,8 @@ static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val)
>   	.num_clks		= ARRAY_SIZE(qmp_v3_phy_clk_l),
>   	.reset_list		= msm8996_usb3phy_reset_l,
>   	.num_resets		= ARRAY_SIZE(msm8996_usb3phy_reset_l),
> -	.vreg_list		= msm8996_phy_vreg_l,
> -	.num_vregs		= ARRAY_SIZE(msm8996_phy_vreg_l),
> +	.vreg_list		= qmp_phy_vreg_l,
> +	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
>   	.regs			= qmp_v3_usb3phy_regs_layout,
>   
>   	.start_ctrl		= SERDES_START | PCS_START,
> @@ -903,8 +982,8 @@ static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val)
>   	.num_clks		= ARRAY_SIZE(qmp_v3_phy_clk_l),
>   	.reset_list		= msm8996_usb3phy_reset_l,
>   	.num_resets		= ARRAY_SIZE(msm8996_usb3phy_reset_l),
> -	.vreg_list		= msm8996_phy_vreg_l,
> -	.num_vregs		= ARRAY_SIZE(msm8996_phy_vreg_l),
> +	.vreg_list		= qmp_phy_vreg_l,
> +	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
>   	.regs			= qmp_v3_usb3phy_regs_layout,
>   
>   	.start_ctrl		= SERDES_START | PCS_START,
> @@ -916,6 +995,30 @@ static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val)
>   	.pwrdn_delay_max	= POWER_DOWN_DELAY_US_MAX,
>   };
>   
> +static const struct qmp_phy_cfg sdm845_ufsphy_cfg = {
> +	.type			= PHY_TYPE_UFS,
> +	.nlanes			= 2,
> +
> +	.serdes_tbl		= sdm845_ufsphy_serdes_tbl,
> +	.serdes_tbl_num		= ARRAY_SIZE(sdm845_ufsphy_serdes_tbl),
> +	.tx_tbl			= sdm845_ufsphy_tx_tbl,
> +	.tx_tbl_num		= ARRAY_SIZE(sdm845_ufsphy_tx_tbl),
> +	.rx_tbl			= sdm845_ufsphy_rx_tbl,
> +	.rx_tbl_num		= ARRAY_SIZE(sdm845_ufsphy_rx_tbl),
> +	.pcs_tbl		= sdm845_ufsphy_pcs_tbl,
> +	.pcs_tbl_num		= ARRAY_SIZE(sdm845_ufsphy_pcs_tbl),
> +	.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			= sdm845_ufsphy_regs_layout,
> +
> +	.start_ctrl		= SERDES_START,
> +	.pwrdn_ctrl		= SW_PWRDN,
> +	.mask_pcs_ready		= PCS_READY,
> +	.skip_sw_rst		= true,
> +};
> +
>   static void qcom_qmp_phy_configure(void __iomem *base,
>   				   const unsigned int *regs,
>   				   const struct qmp_phy_init_tbl tbl[],
> @@ -1140,7 +1243,8 @@ static int qcom_qmp_phy_init(struct phy *phy)
>   		usleep_range(cfg->pwrdn_delay_min, cfg->pwrdn_delay_max);
>   
>   	/* Pull PHY out of reset state */
> -	qphy_clrbits(pcs, cfg->regs[QPHY_SW_RESET], SW_RESET);
> +	if (!cfg->skip_sw_rst)
> +		qphy_clrbits(pcs, cfg->regs[QPHY_SW_RESET], SW_RESET);
>   	if (cfg->has_phy_dp_com_ctrl)
>   		qphy_clrbits(dp_com, QPHY_V3_DP_COM_SW_RESET, SW_RESET);
>   
> @@ -1178,7 +1282,8 @@ static int qcom_qmp_phy_exit(struct phy *phy)
>   	clk_disable_unprepare(qphy->pipe_clk);
>   
>   	/* PHY reset */
> -	qphy_setbits(qphy->pcs, cfg->regs[QPHY_SW_RESET], SW_RESET);
> +	if (!cfg->skip_sw_rst)
> +		qphy_setbits(qphy->pcs, cfg->regs[QPHY_SW_RESET], SW_RESET);
>   
>   	/* stop SerDes and Phy-Coding-Sublayer */
>   	qphy_clrbits(qphy->pcs, cfg->regs[QPHY_START_CTRL], cfg->start_ctrl);
> @@ -1531,6 +1636,9 @@ int qcom_qmp_phy_create(struct device *dev, struct device_node *np, int id)
>   	}, {
>   		.compatible = "qcom,sdm845-qmp-usb3-uni-phy",
>   		.data = &qmp_v3_usb3_uniphy_cfg,
> +	}, {
> +		.compatible = "qcom,sdm845-qmp-ufs-phy",
> +		.data = &sdm845_ufsphy_cfg,
>   	},
>   	{ },
>   };
> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.h b/drivers/phy/qualcomm/phy-qcom-qmp.h
> index 5d78d43..3cbcfe1 100644
> --- a/drivers/phy/qualcomm/phy-qcom-qmp.h
> +++ b/drivers/phy/qualcomm/phy-qcom-qmp.h
> @@ -184,6 +184,8 @@
>   #define QSERDES_V3_COM_VCO_TUNE2_MODE0			0x0f8
>   #define QSERDES_V3_COM_VCO_TUNE1_MODE1			0x0fc
>   #define QSERDES_V3_COM_VCO_TUNE2_MODE1			0x100
> +#define QSERDES_V3_COM_VCO_TUNE_INITVAL1		0x104
> +#define QSERDES_V3_COM_VCO_TUNE_INITVAL2		0x108
>   #define QSERDES_V3_COM_VCO_TUNE_TIMER1			0x11c
>   #define QSERDES_V3_COM_VCO_TUNE_TIMER2			0x120
>   #define QSERDES_V3_COM_CLK_SELECT			0x138
> @@ -211,8 +213,13 @@
>   /* Only for QMP V3 PHY - RX registers */
>   #define QSERDES_V3_RX_UCDR_SO_GAIN_HALF			0x00c
>   #define QSERDES_V3_RX_UCDR_SO_GAIN			0x014
> +#define QSERDES_V3_RX_UCDR_SVS_SO_GAIN_HALF		0x024
> +#define QSERDES_V3_RX_UCDR_SVS_SO_GAIN_QUARTER		0x028
> +#define QSERDES_V3_RX_UCDR_SVS_SO_GAIN			0x02c
>   #define QSERDES_V3_RX_UCDR_FASTLOCK_FO_GAIN		0x030
>   #define QSERDES_V3_RX_UCDR_SO_SATURATION_AND_ENABLE	0x034
> +#define QSERDES_V3_RX_UCDR_FASTLOCK_COUNT_LOW		0x03c
> +#define QSERDES_V3_RX_UCDR_PI_CONTROLS			0x044
>   #define QSERDES_V3_RX_RX_TERM_BW			0x07c
>   #define QSERDES_V3_RX_VGA_CAL_CNTRL1			0x0bc
>   #define QSERDES_V3_RX_VGA_CAL_CNTRL2			0x0c0
> @@ -275,6 +282,7 @@
>   #define QPHY_V3_PCS_FLL_CNT_VAL_L			0x0cc
>   #define QPHY_V3_PCS_FLL_CNT_VAL_H_TOL			0x0d0
>   #define QPHY_V3_PCS_FLL_MAN_CODE			0x0d4
> +#define QPHY_V3_PCS_MULTI_LANE_CTRL1			0x1c4
>   #define QPHY_V3_PCS_RX_SIGDET_LVL			0x1d8
>   #define QPHY_V3_PCS_REFGEN_REQ_CONFIG1			0x20c
>   #define QPHY_V3_PCS_REFGEN_REQ_CONFIG2			0x210

Re: [PATCH v3 1/2] phy: Add QMP phy based UFS phy support for sdm845

[cang]

On 2018-04-09 19:28, Vivek Gautam wrote:
> Hi Can,
> 
> 
> On 3/27/2018 12:48 PM, Can Guo wrote:
>> Add UFS PHY support to make SDM845 UFS work with common PHY framework.
>> 
>> Signed-off-by: Can Guo <cang@codeaurora.org>
>> ---
>>   drivers/phy/qualcomm/phy-qcom-qmp.c | 130 
>> +++++++++++++++++++++++++++++++++---
>>   drivers/phy/qualcomm/phy-qcom-qmp.h |   8 +++
>>   2 files changed, 127 insertions(+), 11 deletions(-)
>> 
>> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c 
>> b/drivers/phy/qualcomm/phy-qcom-qmp.c
>> index 5cf2c3c..0b58030 100644
>> --- a/drivers/phy/qualcomm/phy-qcom-qmp.c
>> +++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
>> @@ -156,6 +156,11 @@ enum qphy_reg_layout {
>>   	[QPHY_PCS_LFPS_RXTERM_IRQ_STATUS] = 0x170,
>>   };
>>   +static const unsigned int sdm845_ufsphy_regs_layout[] = {
>> +	[QPHY_START_CTRL]		= 0x00,
>> +	[QPHY_PCS_READY_STATUS]		= 0x168,
>> +};
>> +
>>   static const struct qmp_phy_init_tbl msm8996_pcie_serdes_tbl[] = {
>>   	QMP_PHY_INIT_CFG(QSERDES_COM_BIAS_EN_CLKBUFLR_EN, 0x1c),
>>   	QMP_PHY_INIT_CFG(QSERDES_COM_CLK_ENABLE1, 0x10),
>> @@ -601,6 +606,73 @@ enum qphy_reg_layout {
>>   	QMP_PHY_INIT_CFG(QPHY_V3_PCS_REFGEN_REQ_CONFIG2, 0x60),
>>   };
>>   +static const struct qmp_phy_init_tbl sdm845_ufsphy_serdes_tbl[] = {
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_SYS_CLK_CTRL, 0x02),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_BG_TIMER, 0x0a),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_IVCO, 0x0f),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_CMN_CONFIG, 0x06),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_SYSCLK_EN_SEL, 0xd5),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_RESETSM_CNTRL, 0x20),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_CLK_SELECT, 0x30),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_HSCLK_SEL, 0x00),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP_EN, 0x01),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_CTRL, 0x00),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_CORE_CLK_EN, 0x00),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_MAP, 0x04),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_SVS_MODE_CLK_SEL, 0x05),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_INITVAL1, 0xff),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_INITVAL2, 0x00),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_DEC_START_MODE0, 0x82),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_CP_CTRL_MODE0, 0x06),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_RCTRL_MODE0, 0x16),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_CCTRL_MODE0, 0x36),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN0_MODE0, 0x3f),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN1_MODE0, 0x00),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE1_MODE0, 0xda),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE2_MODE0, 0x01),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP1_MODE0, 0xff),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP2_MODE0, 0x0c),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_DEC_START_MODE1, 0x98),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_CP_CTRL_MODE1, 0x06),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_RCTRL_MODE1, 0x16),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_CCTRL_MODE1, 0x36),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN0_MODE1, 0x3f),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN1_MODE1, 0x00),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE1_MODE1, 0xc1),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE2_MODE1, 0x00),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP1_MODE1, 0x32),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP2_MODE1, 0x0f),
>> +
>> +	/* Rate B */
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_MAP, 0x44),
>> +};
>> +
>> +static const struct qmp_phy_init_tbl sdm845_ufsphy_tx_tbl[] = {
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_TX_LANE_MODE_1, 0x06),
>> +};
>> +
>> +static const struct qmp_phy_init_tbl sdm845_ufsphy_rx_tbl[] = {
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_SIGDET_LVL, 0x24),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_SIGDET_CNTRL, 0x0f),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_SIGDET_DEGLITCH_CNTRL, 0x1e),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_INTERFACE_MODE, 0x40),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_FASTLOCK_FO_GAIN, 0x0b),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_TERM_BW, 0x5b),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_EQU_ADAPTOR_CNTRL2, 0x06),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_EQU_ADAPTOR_CNTRL3, 0x04),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_EQU_ADAPTOR_CNTRL4, 0x1d),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SVS_SO_GAIN_HALF, 0x04),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SVS_SO_GAIN_QUARTER, 0x04),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SVS_SO_GAIN, 0x04),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SO_SATURATION_AND_ENABLE, 0x4b),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_PI_CONTROLS, 0x81),
>> +	QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_FASTLOCK_COUNT_LOW, 0x80),
>> +};
>> +
>> +static const struct qmp_phy_init_tbl sdm845_ufsphy_pcs_tbl[] = {
>> +	QMP_PHY_INIT_CFG(QPHY_V3_PCS_POWER_DOWN_CONTROL, 0x01),
>> +	QMP_PHY_INIT_CFG(QPHY_V3_PCS_MULTI_LANE_CTRL1, 0x02),
>> +};
>>     /* struct qmp_phy_cfg - per-PHY initialization config */
>>   struct qmp_phy_cfg {
>> @@ -652,6 +724,9 @@ struct qmp_phy_cfg {
>>   	/* Register offset of secondary tx/rx lanes for USB DP combo PHY */
>>   	unsigned int tx_b_lane_offset;
>>   	unsigned int rx_b_lane_offset;
>> +
>> +	/* true, if PCS block has no separate SW_RESET register */
>> +	bool skip_sw_rst;
>>   };
>>     /**
>> @@ -748,6 +823,10 @@ static inline void qphy_clrbits(void __iomem 
>> *base, u32 offset, u32 val)
>>   	"aux", "cfg_ahb", "ref", "com_aux",
>>   };
>>   +static const char * const sdm845_ufs_phy_clk_l[] = {
>> +	"ref",
> 
> did you miss adding 'ref_aux' clock here as in the v2 version?
> Rest looks good. After this change, you can add my reviewed-by
> Reviewed-by: Vivek Gautam <vivek.gautam@codeaurora.org>
> 
> Thanks
> Vivek

Thank you Vivek. I removed 'ref_aux' as it was from the old UFS PHY 
driver.
And I have tested the new patch on MTP845 V2, it worked fine. Do you 
have
any concerns about it?

Thanks
Can

>> +};
>> +
>>   /* list of resets */
>>   static const char * const msm8996_pciephy_reset_l[] = {
>>   	"phy", "common", "cfg",
>> @@ -758,7 +837,7 @@ static inline void qphy_clrbits(void __iomem 
>> *base, u32 offset, u32 val)
>>   };
>>     /* list of regulators */
>> -static const char * const msm8996_phy_vreg_l[] = {
>> +static const char * const qmp_phy_vreg_l[] = {
>>   	"vdda-phy", "vdda-pll",
>>   };
>>   @@ -778,8 +857,8 @@ static inline void qphy_clrbits(void __iomem 
>> *base, u32 offset, u32 val)
>>   	.num_clks		= ARRAY_SIZE(msm8996_phy_clk_l),
>>   	.reset_list		= msm8996_pciephy_reset_l,
>>   	.num_resets		= ARRAY_SIZE(msm8996_pciephy_reset_l),
>> -	.vreg_list		= msm8996_phy_vreg_l,
>> -	.num_vregs		= ARRAY_SIZE(msm8996_phy_vreg_l),
>> +	.vreg_list		= qmp_phy_vreg_l,
>> +	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
>>   	.regs			= pciephy_regs_layout,
>>     	.start_ctrl		= PCS_START | PLL_READY_GATE_EN,
>> @@ -809,8 +888,8 @@ static inline void qphy_clrbits(void __iomem 
>> *base, u32 offset, u32 val)
>>   	.num_clks		= ARRAY_SIZE(msm8996_phy_clk_l),
>>   	.reset_list		= msm8996_usb3phy_reset_l,
>>   	.num_resets		= ARRAY_SIZE(msm8996_usb3phy_reset_l),
>> -	.vreg_list		= msm8996_phy_vreg_l,
>> -	.num_vregs		= ARRAY_SIZE(msm8996_phy_vreg_l),
>> +	.vreg_list		= qmp_phy_vreg_l,
>> +	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
>>   	.regs			= usb3phy_regs_layout,
>>     	.start_ctrl		= SERDES_START | PCS_START,
>> @@ -870,8 +949,8 @@ static inline void qphy_clrbits(void __iomem 
>> *base, u32 offset, u32 val)
>>   	.num_clks		= ARRAY_SIZE(qmp_v3_phy_clk_l),
>>   	.reset_list		= msm8996_usb3phy_reset_l,
>>   	.num_resets		= ARRAY_SIZE(msm8996_usb3phy_reset_l),
>> -	.vreg_list		= msm8996_phy_vreg_l,
>> -	.num_vregs		= ARRAY_SIZE(msm8996_phy_vreg_l),
>> +	.vreg_list		= qmp_phy_vreg_l,
>> +	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
>>   	.regs			= qmp_v3_usb3phy_regs_layout,
>>     	.start_ctrl		= SERDES_START | PCS_START,
>> @@ -903,8 +982,8 @@ static inline void qphy_clrbits(void __iomem 
>> *base, u32 offset, u32 val)
>>   	.num_clks		= ARRAY_SIZE(qmp_v3_phy_clk_l),
>>   	.reset_list		= msm8996_usb3phy_reset_l,
>>   	.num_resets		= ARRAY_SIZE(msm8996_usb3phy_reset_l),
>> -	.vreg_list		= msm8996_phy_vreg_l,
>> -	.num_vregs		= ARRAY_SIZE(msm8996_phy_vreg_l),
>> +	.vreg_list		= qmp_phy_vreg_l,
>> +	.num_vregs		= ARRAY_SIZE(qmp_phy_vreg_l),
>>   	.regs			= qmp_v3_usb3phy_regs_layout,
>>     	.start_ctrl		= SERDES_START | PCS_START,
>> @@ -916,6 +995,30 @@ static inline void qphy_clrbits(void __iomem 
>> *base, u32 offset, u32 val)
>>   	.pwrdn_delay_max	= POWER_DOWN_DELAY_US_MAX,
>>   };
>>   +static const struct qmp_phy_cfg sdm845_ufsphy_cfg = {
>> +	.type			= PHY_TYPE_UFS,
>> +	.nlanes			= 2,
>> +
>> +	.serdes_tbl		= sdm845_ufsphy_serdes_tbl,
>> +	.serdes_tbl_num		= ARRAY_SIZE(sdm845_ufsphy_serdes_tbl),
>> +	.tx_tbl			= sdm845_ufsphy_tx_tbl,
>> +	.tx_tbl_num		= ARRAY_SIZE(sdm845_ufsphy_tx_tbl),
>> +	.rx_tbl			= sdm845_ufsphy_rx_tbl,
>> +	.rx_tbl_num		= ARRAY_SIZE(sdm845_ufsphy_rx_tbl),
>> +	.pcs_tbl		= sdm845_ufsphy_pcs_tbl,
>> +	.pcs_tbl_num		= ARRAY_SIZE(sdm845_ufsphy_pcs_tbl),
>> +	.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			= sdm845_ufsphy_regs_layout,
>> +
>> +	.start_ctrl		= SERDES_START,
>> +	.pwrdn_ctrl		= SW_PWRDN,
>> +	.mask_pcs_ready		= PCS_READY,
>> +	.skip_sw_rst		= true,
>> +};
>> +
>>   static void qcom_qmp_phy_configure(void __iomem *base,
>>   				   const unsigned int *regs,
>>   				   const struct qmp_phy_init_tbl tbl[],
>> @@ -1140,7 +1243,8 @@ static int qcom_qmp_phy_init(struct phy *phy)
>>   		usleep_range(cfg->pwrdn_delay_min, cfg->pwrdn_delay_max);
>>     	/* Pull PHY out of reset state */
>> -	qphy_clrbits(pcs, cfg->regs[QPHY_SW_RESET], SW_RESET);
>> +	if (!cfg->skip_sw_rst)
>> +		qphy_clrbits(pcs, cfg->regs[QPHY_SW_RESET], SW_RESET);
>>   	if (cfg->has_phy_dp_com_ctrl)
>>   		qphy_clrbits(dp_com, QPHY_V3_DP_COM_SW_RESET, SW_RESET);
>>   @@ -1178,7 +1282,8 @@ static int qcom_qmp_phy_exit(struct phy *phy)
>>   	clk_disable_unprepare(qphy->pipe_clk);
>>     	/* PHY reset */
>> -	qphy_setbits(qphy->pcs, cfg->regs[QPHY_SW_RESET], SW_RESET);
>> +	if (!cfg->skip_sw_rst)
>> +		qphy_setbits(qphy->pcs, cfg->regs[QPHY_SW_RESET], SW_RESET);
>>     	/* stop SerDes and Phy-Coding-Sublayer */
>>   	qphy_clrbits(qphy->pcs, cfg->regs[QPHY_START_CTRL], 
>> cfg->start_ctrl);
>> @@ -1531,6 +1636,9 @@ int qcom_qmp_phy_create(struct device *dev, 
>> struct device_node *np, int id)
>>   	}, {
>>   		.compatible = "qcom,sdm845-qmp-usb3-uni-phy",
>>   		.data = &qmp_v3_usb3_uniphy_cfg,
>> +	}, {
>> +		.compatible = "qcom,sdm845-qmp-ufs-phy",
>> +		.data = &sdm845_ufsphy_cfg,
>>   	},
>>   	{ },
>>   };
>> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.h 
>> b/drivers/phy/qualcomm/phy-qcom-qmp.h
>> index 5d78d43..3cbcfe1 100644
>> --- a/drivers/phy/qualcomm/phy-qcom-qmp.h
>> +++ b/drivers/phy/qualcomm/phy-qcom-qmp.h
>> @@ -184,6 +184,8 @@
>>   #define QSERDES_V3_COM_VCO_TUNE2_MODE0			0x0f8
>>   #define QSERDES_V3_COM_VCO_TUNE1_MODE1			0x0fc
>>   #define QSERDES_V3_COM_VCO_TUNE2_MODE1			0x100
>> +#define QSERDES_V3_COM_VCO_TUNE_INITVAL1		0x104
>> +#define QSERDES_V3_COM_VCO_TUNE_INITVAL2		0x108
>>   #define QSERDES_V3_COM_VCO_TUNE_TIMER1			0x11c
>>   #define QSERDES_V3_COM_VCO_TUNE_TIMER2			0x120
>>   #define QSERDES_V3_COM_CLK_SELECT			0x138
>> @@ -211,8 +213,13 @@
>>   /* Only for QMP V3 PHY - RX registers */
>>   #define QSERDES_V3_RX_UCDR_SO_GAIN_HALF			0x00c
>>   #define QSERDES_V3_RX_UCDR_SO_GAIN			0x014
>> +#define QSERDES_V3_RX_UCDR_SVS_SO_GAIN_HALF		0x024
>> +#define QSERDES_V3_RX_UCDR_SVS_SO_GAIN_QUARTER		0x028
>> +#define QSERDES_V3_RX_UCDR_SVS_SO_GAIN			0x02c
>>   #define QSERDES_V3_RX_UCDR_FASTLOCK_FO_GAIN		0x030
>>   #define QSERDES_V3_RX_UCDR_SO_SATURATION_AND_ENABLE	0x034
>> +#define QSERDES_V3_RX_UCDR_FASTLOCK_COUNT_LOW		0x03c
>> +#define QSERDES_V3_RX_UCDR_PI_CONTROLS			0x044
>>   #define QSERDES_V3_RX_RX_TERM_BW			0x07c
>>   #define QSERDES_V3_RX_VGA_CAL_CNTRL1			0x0bc
>>   #define QSERDES_V3_RX_VGA_CAL_CNTRL2			0x0c0
>> @@ -275,6 +282,7 @@
>>   #define QPHY_V3_PCS_FLL_CNT_VAL_L			0x0cc
>>   #define QPHY_V3_PCS_FLL_CNT_VAL_H_TOL			0x0d0
>>   #define QPHY_V3_PCS_FLL_MAN_CODE			0x0d4
>> +#define QPHY_V3_PCS_MULTI_LANE_CTRL1			0x1c4
>>   #define QPHY_V3_PCS_RX_SIGDET_LVL			0x1d8
>>   #define QPHY_V3_PCS_REFGEN_REQ_CONFIG1			0x20c
>>   #define QPHY_V3_PCS_REFGEN_REQ_CONFIG2			0x210

Re: [PATCH v3 1/2] phy: Add QMP phy based UFS phy support for sdm845

[Vivek Gautam]

On 4/12/2018 6:27 AM, cang@codeaurora.org wrote:
> On 2018-04-09 19:28, Vivek Gautam wrote:
>> Hi Can,
>>
>>
>> On 3/27/2018 12:48 PM, Can Guo wrote:
>>> Add UFS PHY support to make SDM845 UFS work with common PHY framework.
>>>
>>> Signed-off-by: Can Guo <cang@codeaurora.org>
>>> ---
>>>   drivers/phy/qualcomm/phy-qcom-qmp.c | 130 
>>> +++++++++++++++++++++++++++++++++---
>>>   drivers/phy/qualcomm/phy-qcom-qmp.h |   8 +++
>>>   2 files changed, 127 insertions(+), 11 deletions(-)
>>>
>>> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c 
>>> b/drivers/phy/qualcomm/phy-qcom-qmp.c
>>> index 5cf2c3c..0b58030 100644
>>> --- a/drivers/phy/qualcomm/phy-qcom-qmp.c
>>> +++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
>>> @@ -156,6 +156,11 @@ enum qphy_reg_layout {
>>>       [QPHY_PCS_LFPS_RXTERM_IRQ_STATUS] = 0x170,
>>>   };
>>>   +static const unsigned int sdm845_ufsphy_regs_layout[] = {
>>> +    [QPHY_START_CTRL]        = 0x00,
>>> +    [QPHY_PCS_READY_STATUS]        = 0x168,
>>> +};
>>> +
>>>   static const struct qmp_phy_init_tbl msm8996_pcie_serdes_tbl[] = {
>>>       QMP_PHY_INIT_CFG(QSERDES_COM_BIAS_EN_CLKBUFLR_EN, 0x1c),
>>>       QMP_PHY_INIT_CFG(QSERDES_COM_CLK_ENABLE1, 0x10),
>>> @@ -601,6 +606,73 @@ enum qphy_reg_layout {
>>>       QMP_PHY_INIT_CFG(QPHY_V3_PCS_REFGEN_REQ_CONFIG2, 0x60),
>>>   };
>>>   +static const struct qmp_phy_init_tbl sdm845_ufsphy_serdes_tbl[] = {
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_SYS_CLK_CTRL, 0x02),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_BG_TIMER, 0x0a),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_IVCO, 0x0f),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_CMN_CONFIG, 0x06),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_SYSCLK_EN_SEL, 0xd5),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_RESETSM_CNTRL, 0x20),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_CLK_SELECT, 0x30),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_HSCLK_SEL, 0x00),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP_EN, 0x01),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_CTRL, 0x00),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_CORE_CLK_EN, 0x00),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_MAP, 0x04),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_SVS_MODE_CLK_SEL, 0x05),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_INITVAL1, 0xff),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_INITVAL2, 0x00),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_DEC_START_MODE0, 0x82),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_CP_CTRL_MODE0, 0x06),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_RCTRL_MODE0, 0x16),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_CCTRL_MODE0, 0x36),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN0_MODE0, 0x3f),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN1_MODE0, 0x00),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE1_MODE0, 0xda),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE2_MODE0, 0x01),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP1_MODE0, 0xff),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP2_MODE0, 0x0c),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_DEC_START_MODE1, 0x98),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_CP_CTRL_MODE1, 0x06),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_RCTRL_MODE1, 0x16),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_CCTRL_MODE1, 0x36),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN0_MODE1, 0x3f),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN1_MODE1, 0x00),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE1_MODE1, 0xc1),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE2_MODE1, 0x00),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP1_MODE1, 0x32),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP2_MODE1, 0x0f),
>>> +
>>> +    /* Rate B */
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_MAP, 0x44),
>>> +};
>>> +
>>> +static const struct qmp_phy_init_tbl sdm845_ufsphy_tx_tbl[] = {
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_TX_LANE_MODE_1, 0x06),
>>> +};
>>> +
>>> +static const struct qmp_phy_init_tbl sdm845_ufsphy_rx_tbl[] = {
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_SIGDET_LVL, 0x24),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_SIGDET_CNTRL, 0x0f),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_SIGDET_DEGLITCH_CNTRL, 0x1e),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_INTERFACE_MODE, 0x40),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_FASTLOCK_FO_GAIN, 0x0b),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_TERM_BW, 0x5b),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_EQU_ADAPTOR_CNTRL2, 0x06),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_EQU_ADAPTOR_CNTRL3, 0x04),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_EQU_ADAPTOR_CNTRL4, 0x1d),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SVS_SO_GAIN_HALF, 0x04),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SVS_SO_GAIN_QUARTER, 0x04),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SVS_SO_GAIN, 0x04),
>>> + QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SO_SATURATION_AND_ENABLE, 0x4b),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_PI_CONTROLS, 0x81),
>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_FASTLOCK_COUNT_LOW, 0x80),
>>> +};
>>> +
>>> +static const struct qmp_phy_init_tbl sdm845_ufsphy_pcs_tbl[] = {
>>> +    QMP_PHY_INIT_CFG(QPHY_V3_PCS_POWER_DOWN_CONTROL, 0x01),
>>> +    QMP_PHY_INIT_CFG(QPHY_V3_PCS_MULTI_LANE_CTRL1, 0x02),
>>> +};
>>>     /* struct qmp_phy_cfg - per-PHY initialization config */
>>>   struct qmp_phy_cfg {
>>> @@ -652,6 +724,9 @@ struct qmp_phy_cfg {
>>>       /* Register offset of secondary tx/rx lanes for USB DP combo 
>>> PHY */
>>>       unsigned int tx_b_lane_offset;
>>>       unsigned int rx_b_lane_offset;
>>> +
>>> +    /* true, if PCS block has no separate SW_RESET register */
>>> +    bool skip_sw_rst;
>>>   };
>>>     /**
>>> @@ -748,6 +823,10 @@ static inline void qphy_clrbits(void __iomem 
>>> *base, u32 offset, u32 val)
>>>       "aux", "cfg_ahb", "ref", "com_aux",
>>>   };
>>>   +static const char * const sdm845_ufs_phy_clk_l[] = {
>>> +    "ref",
>>
>> did you miss adding 'ref_aux' clock here as in the v2 version?
>> Rest looks good. After this change, you can add my reviewed-by
>> Reviewed-by: Vivek Gautam <vivek.gautam@codeaurora.org>
>>
>> Thanks
>> Vivek
>
> Thank you Vivek. I removed 'ref_aux' as it was from the old UFS PHY 
> driver.
> And I have tested the new patch on MTP845 V2, it worked fine. Do you have
> any concerns about it?
>

I see in the downstream there's a ref_aux clock, so can you check from 
the phy's
hardware docs if this is required for phy's functionality. Working on 
the MTP is
one thing as some of the clocks may be kept enabled by the bootloader 
too sometimes.

Thanks
Vivek
> Thanks
> Can
[snip]

Re: [PATCH v3 1/2] phy: Add QMP phy based UFS phy support for sdm845

[cang]

On 2018-04-12 13:13, Vivek Gautam wrote:
> On 4/12/2018 6:27 AM, cang@codeaurora.org wrote:
>> On 2018-04-09 19:28, Vivek Gautam wrote:
>>> Hi Can,
>>> 
>>> 
>>> On 3/27/2018 12:48 PM, Can Guo wrote:
>>>> Add UFS PHY support to make SDM845 UFS work with common PHY 
>>>> framework.
>>>> 
>>>> Signed-off-by: Can Guo <cang@codeaurora.org>
>>>> ---
>>>>   drivers/phy/qualcomm/phy-qcom-qmp.c | 130 
>>>> +++++++++++++++++++++++++++++++++---
>>>>   drivers/phy/qualcomm/phy-qcom-qmp.h |   8 +++
>>>>   2 files changed, 127 insertions(+), 11 deletions(-)
>>>> 
>>>> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp.c 
>>>> b/drivers/phy/qualcomm/phy-qcom-qmp.c
>>>> index 5cf2c3c..0b58030 100644
>>>> --- a/drivers/phy/qualcomm/phy-qcom-qmp.c
>>>> +++ b/drivers/phy/qualcomm/phy-qcom-qmp.c
>>>> @@ -156,6 +156,11 @@ enum qphy_reg_layout {
>>>>       [QPHY_PCS_LFPS_RXTERM_IRQ_STATUS] = 0x170,
>>>>   };
>>>>   +static const unsigned int sdm845_ufsphy_regs_layout[] = {
>>>> +    [QPHY_START_CTRL]        = 0x00,
>>>> +    [QPHY_PCS_READY_STATUS]        = 0x168,
>>>> +};
>>>> +
>>>>   static const struct qmp_phy_init_tbl msm8996_pcie_serdes_tbl[] = {
>>>>       QMP_PHY_INIT_CFG(QSERDES_COM_BIAS_EN_CLKBUFLR_EN, 0x1c),
>>>>       QMP_PHY_INIT_CFG(QSERDES_COM_CLK_ENABLE1, 0x10),
>>>> @@ -601,6 +606,73 @@ enum qphy_reg_layout {
>>>>       QMP_PHY_INIT_CFG(QPHY_V3_PCS_REFGEN_REQ_CONFIG2, 0x60),
>>>>   };
>>>>   +static const struct qmp_phy_init_tbl sdm845_ufsphy_serdes_tbl[] = 
>>>> {
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_SYS_CLK_CTRL, 0x02),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_BG_TIMER, 0x0a),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_IVCO, 0x0f),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_CMN_CONFIG, 0x06),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_SYSCLK_EN_SEL, 0xd5),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_RESETSM_CNTRL, 0x20),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_CLK_SELECT, 0x30),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_HSCLK_SEL, 0x00),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP_EN, 0x01),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_CTRL, 0x00),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_CORE_CLK_EN, 0x00),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_MAP, 0x04),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_SVS_MODE_CLK_SEL, 0x05),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_INITVAL1, 0xff),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_INITVAL2, 0x00),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_DEC_START_MODE0, 0x82),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_CP_CTRL_MODE0, 0x06),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_RCTRL_MODE0, 0x16),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_CCTRL_MODE0, 0x36),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN0_MODE0, 0x3f),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN1_MODE0, 0x00),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE1_MODE0, 0xda),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE2_MODE0, 0x01),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP1_MODE0, 0xff),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP2_MODE0, 0x0c),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_DEC_START_MODE1, 0x98),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_CP_CTRL_MODE1, 0x06),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_RCTRL_MODE1, 0x16),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_CCTRL_MODE1, 0x36),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN0_MODE1, 0x3f),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_INTEGLOOP_GAIN1_MODE1, 0x00),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE1_MODE1, 0xc1),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE2_MODE1, 0x00),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP1_MODE1, 0x32),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_LOCK_CMP2_MODE1, 0x0f),
>>>> +
>>>> +    /* Rate B */
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_MAP, 0x44),
>>>> +};
>>>> +
>>>> +static const struct qmp_phy_init_tbl sdm845_ufsphy_tx_tbl[] = {
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_TX_LANE_MODE_1, 0x06),
>>>> +};
>>>> +
>>>> +static const struct qmp_phy_init_tbl sdm845_ufsphy_rx_tbl[] = {
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_SIGDET_LVL, 0x24),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_SIGDET_CNTRL, 0x0f),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_SIGDET_DEGLITCH_CNTRL, 0x1e),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_INTERFACE_MODE, 0x40),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_FASTLOCK_FO_GAIN, 0x0b),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_TERM_BW, 0x5b),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_EQU_ADAPTOR_CNTRL2, 0x06),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_EQU_ADAPTOR_CNTRL3, 0x04),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_EQU_ADAPTOR_CNTRL4, 0x1d),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SVS_SO_GAIN_HALF, 0x04),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SVS_SO_GAIN_QUARTER, 0x04),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SVS_SO_GAIN, 0x04),
>>>> + QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_SO_SATURATION_AND_ENABLE, 
>>>> 0x4b),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_PI_CONTROLS, 0x81),
>>>> +    QMP_PHY_INIT_CFG(QSERDES_V3_RX_UCDR_FASTLOCK_COUNT_LOW, 0x80),
>>>> +};
>>>> +
>>>> +static const struct qmp_phy_init_tbl sdm845_ufsphy_pcs_tbl[] = {
>>>> +    QMP_PHY_INIT_CFG(QPHY_V3_PCS_POWER_DOWN_CONTROL, 0x01),
>>>> +    QMP_PHY_INIT_CFG(QPHY_V3_PCS_MULTI_LANE_CTRL1, 0x02),
>>>> +};
>>>>     /* struct qmp_phy_cfg - per-PHY initialization config */
>>>>   struct qmp_phy_cfg {
>>>> @@ -652,6 +724,9 @@ struct qmp_phy_cfg {
>>>>       /* Register offset of secondary tx/rx lanes for USB DP combo 
>>>> PHY */
>>>>       unsigned int tx_b_lane_offset;
>>>>       unsigned int rx_b_lane_offset;
>>>> +
>>>> +    /* true, if PCS block has no separate SW_RESET register */
>>>> +    bool skip_sw_rst;
>>>>   };
>>>>     /**
>>>> @@ -748,6 +823,10 @@ static inline void qphy_clrbits(void __iomem 
>>>> *base, u32 offset, u32 val)
>>>>       "aux", "cfg_ahb", "ref", "com_aux",
>>>>   };
>>>>   +static const char * const sdm845_ufs_phy_clk_l[] = {
>>>> +    "ref",
>>> 
>>> did you miss adding 'ref_aux' clock here as in the v2 version?
>>> Rest looks good. After this change, you can add my reviewed-by
>>> Reviewed-by: Vivek Gautam <vivek.gautam@codeaurora.org>
>>> 
>>> Thanks
>>> Vivek
>> 
>> Thank you Vivek. I removed 'ref_aux' as it was from the old UFS PHY 
>> driver.
>> And I have tested the new patch on MTP845 V2, it worked fine. Do you 
>> have
>> any concerns about it?
>> 
> 
> I see in the downstream there's a ref_aux clock, so can you check from 
> the phy's
> hardware docs if this is required for phy's functionality. Working on 
> the MTP is
> one thing as some of the clocks may be kept enabled by the bootloader
> too sometimes.
> 
> Thanks
> Vivek

You are right Vivek, I checked the HPG,'ref_aux' is needed for 845 
indeed. I will add it back.
BTW, is it OK that I use 'aux' instead? As clk name 'aux' in the 
documentation seems to serve the same
purpose for UFS PHY.

Thanks
Can

>> Thanks
>> Can
> [snip]

[PATCH v3 2/2] dt-bindings: phy-qcom-qmp: Add UFS phy compatible string for sdm845

[Can Guo]

Update the compatible string for UFS QMP PHY on SDM845.

Signed-off-by: Can Guo <cang@codeaurora.org>
---
 Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt b/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
index cef8765..6e68a6d 100644
--- a/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
+++ b/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
@@ -11,7 +11,8 @@ Required properties:
 	       "qcom,msm8996-qmp-usb3-phy" for 14nm USB3 phy on msm8996,
 	       "qcom,qmp-v3-usb3-phy" for USB3 QMP V3 phy,
 	       "qcom,sdm845-qmp-usb3-phy" for USB3 QMP V3 phy on sdm845,
-	       "qcom,sdm845-qmp-usb3-uni-phy" for USB3 QMP V3 UNI phy on sdm845.
+	       "qcom,sdm845-qmp-usb3-uni-phy" for USB3 QMP V3 UNI phy on sdm845,
+	       "qcom,sdm845-qmp-ufs-phy" for UFS QMP phy on sdm845.
 
  - reg: offset and length of register set for PHY's common serdes block.
 
-- 
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project

Re: [PATCH v3 2/2] dt-bindings: phy-qcom-qmp: Add UFS phy compatible string for sdm845

[Vivek Gautam]

On 3/27/2018 12:48 PM, Can Guo wrote:
> Update the compatible string for UFS QMP PHY on SDM845.
>
> Signed-off-by: Can Guo <cang@codeaurora.org>

Please keep all reviewed-by's, given by reviewers and maintainers, to 
your older
version of the patch unless there's a design change (major change).
I think you missed adding Rob H's reviewed-by tag.

Also,
Reviewed-by: Vivek Gautam <vivek.gautam@codeaurora.org>

Thanks
Vivek
> ---
>   Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt | 3 ++-
>   1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt b/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
> index cef8765..6e68a6d 100644
> --- a/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
> +++ b/Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt
> @@ -11,7 +11,8 @@ Required properties:
>   	       "qcom,msm8996-qmp-usb3-phy" for 14nm USB3 phy on msm8996,
>   	       "qcom,qmp-v3-usb3-phy" for USB3 QMP V3 phy,
>   	       "qcom,sdm845-qmp-usb3-phy" for USB3 QMP V3 phy on sdm845,
> -	       "qcom,sdm845-qmp-usb3-uni-phy" for USB3 QMP V3 UNI phy on sdm845.
> +	       "qcom,sdm845-qmp-usb3-uni-phy" for USB3 QMP V3 UNI phy on sdm845,
> +	       "qcom,sdm845-qmp-ufs-phy" for UFS QMP phy on sdm845.
>   
>    - reg: offset and length of register set for PHY's common serdes block.
>   

Re: [PATCH v3 2/2] dt-bindings: phy-qcom-qmp: Add UFS phy compatible string for sdm845

[Rob Herring]

On Tue, Mar 27, 2018 at 03:18:38PM +0800, Can Guo wrote:
> Update the compatible string for UFS QMP PHY on SDM845.
> 
> Signed-off-by: Can Guo <cang@codeaurora.org>
> ---
>  Documentation/devicetree/bindings/phy/qcom-qmp-phy.txt | 3 ++-
>  1 file changed, 2 insertions(+), 1 deletion(-)

Reviewed-by: Rob Herring <robh@kernel.org>