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Message-ID: <e4bafeaf-bbeb-4990-b6f2-497159995910@linaro.org>
Date: Fri, 10 Nov 2023 09:47:00 +0100
From: neil.armstrong@...aro.org
To: Can Guo <cang@....qualcomm.com>, quic_cang@...cinc.com,
bvanassche@....org, mani@...nel.org, stanley.chu@...iatek.com,
adrian.hunter@...el.com, beanhuo@...ron.com, avri.altman@....com,
junwoo80.lee@...sung.com, martin.petersen@...cle.com
Cc: linux-scsi@...r.kernel.org, Andy Gross <agross@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konrad.dybcio@...aro.org>,
Vinod Koul <vkoul@...nel.org>,
Kishon Vijay Abraham I <kishon@...nel.org>,
"open list:ARM/QUALCOMM SUPPORT" <linux-arm-msm@...r.kernel.org>,
"open list:GENERIC PHY FRAMEWORK" <linux-phy@...ts.infradead.org>,
open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 6/7] phy: qualcomm: phy-qcom-qmp-ufs: Add High Speed
Gear 5 support for SM8550
Hi,
On 07/11/2023 05:46, Can Guo wrote:
> From: Can Guo <quic_cang@...cinc.com>
>
> On SM8550, two sets of UFS PHY settings are provided, one set is to support
> HS-G5, another set is to support HS-G4 and lower gears. The two sets of PHY
> settings are programming different values to different registers, mixing
> the two sets and/or overwriting one set with another set is definitely not
> blessed by UFS PHY designers. In order to add HS-G5 support for SM8550, we
> need to split the two sets into their dedicated tables, and leave only the
> common settings in the .tlbs. To have the PHY programmed with the correct
> set of PHY settings, the submode passed to PHY driver must be either HS-G4
> or HS-G5.
I guess I'll need to rebase my SM8650 UFS PHY driver to support both G4 and G5 modes
at some point ?
Neil
>
> Signed-off-by: Can Guo <quic_cang@...cinc.com>
> ---
> drivers/phy/qualcomm/phy-qcom-qmp-pcs-ufs-v6.h | 2 +
> drivers/phy/qualcomm/phy-qcom-qmp-qserdes-com-v6.h | 2 +
> .../qualcomm/phy-qcom-qmp-qserdes-txrx-ufs-v6.h | 12 +++
> drivers/phy/qualcomm/phy-qcom-qmp-ufs.c | 112 ++++++++++++++++++---
> 4 files changed, 115 insertions(+), 13 deletions(-)
>
> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcs-ufs-v6.h b/drivers/phy/qualcomm/phy-qcom-qmp-pcs-ufs-v6.h
> index c23d5e4..e563af5 100644
> --- a/drivers/phy/qualcomm/phy-qcom-qmp-pcs-ufs-v6.h
> +++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcs-ufs-v6.h
> @@ -18,6 +18,7 @@
> #define QPHY_V6_PCS_UFS_BIST_FIXED_PAT_CTRL 0x060
> #define QPHY_V6_PCS_UFS_TX_HSGEAR_CAPABILITY 0x074
> #define QPHY_V6_PCS_UFS_RX_HSGEAR_CAPABILITY 0x0bc
> +#define QPHY_V6_PCS_UFS_RX_HS_G5_SYNC_LENGTH_CAPABILITY 0x12c
> #define QPHY_V6_PCS_UFS_DEBUG_BUS_CLKSEL 0x158
> #define QPHY_V6_PCS_UFS_LINECFG_DISABLE 0x17c
> #define QPHY_V6_PCS_UFS_RX_MIN_HIBERN8_TIME 0x184
> @@ -27,5 +28,6 @@
> #define QPHY_V6_PCS_UFS_READY_STATUS 0x1a8
> #define QPHY_V6_PCS_UFS_TX_MID_TERM_CTRL1 0x1f4
> #define QPHY_V6_PCS_UFS_MULTI_LANE_CTRL1 0x1fc
> +#define QPHY_V6_PCS_UFS_RX_HSG5_SYNC_WAIT_TIME 0x220
>
> #endif
> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-qserdes-com-v6.h b/drivers/phy/qualcomm/phy-qcom-qmp-qserdes-com-v6.h
> index f420f8f..ef392ce 100644
> --- a/drivers/phy/qualcomm/phy-qcom-qmp-qserdes-com-v6.h
> +++ b/drivers/phy/qualcomm/phy-qcom-qmp-qserdes-com-v6.h
> @@ -56,6 +56,8 @@
> #define QSERDES_V6_COM_SYS_CLK_CTRL 0xe4
> #define QSERDES_V6_COM_SYSCLK_BUF_ENABLE 0xe8
> #define QSERDES_V6_COM_PLL_IVCO 0xf4
> +#define QSERDES_V6_COM_CMN_IETRIM 0xfc
> +#define QSERDES_V6_COM_CMN_IPTRIM 0x100
> #define QSERDES_V6_COM_SYSCLK_EN_SEL 0x110
> #define QSERDES_V6_COM_RESETSM_CNTRL 0x118
> #define QSERDES_V6_COM_LOCK_CMP_EN 0x120
> 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 15bcb4b..48f31c8 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
> @@ -10,10 +10,20 @@
> #define QSERDES_UFS_V6_TX_RES_CODE_LANE_RX 0x2c
> #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
> +#define QSERDES_UFS_V6_RX_UCDR_FASTLOCK_SO_GAIN_RATE4 0x24
> +#define QSERDES_UFS_V6_RX_UCDR_FASTLOCK_COUNT_HIGH_RATE4 0x54
> +#define QSERDES_UFS_V6_RX_UCDR_FO_GAIN_RATE2 0xd4
> +#define QSERDES_UFS_V6_RX_UCDR_FO_GAIN_RATE4 0xdc
> +#define QSERDES_UFS_V6_RX_UCDR_SO_GAIN_RATE4 0xf0
> +#define QSERDES_UFS_V6_RX_UCDR_PI_CONTROLS 0xf4
> #define QSERDES_UFS_V6_RX_VGA_CAL_MAN_VAL 0x178
> +#define QSERDES_UFS_V6_RX_EQ_OFFSET_ADAPTOR_CNTRL1 0x1bc
> +#define QSERDES_UFS_V6_RX_OFFSET_ADAPTOR_CNTRL3 0x1c4
> #define QSERDES_UFS_V6_RX_MODE_RATE_0_1_B0 0x208
> #define QSERDES_UFS_V6_RX_MODE_RATE_0_1_B1 0x20c
> #define QSERDES_UFS_V6_RX_MODE_RATE_0_1_B3 0x214
> @@ -25,6 +35,8 @@
> #define QSERDES_UFS_V6_RX_MODE_RATE3_B5 0x264
> #define QSERDES_UFS_V6_RX_MODE_RATE3_B8 0x270
> #define QSERDES_UFS_V6_RX_MODE_RATE4_B3 0x280
> +#define QSERDES_UFS_V6_RX_MODE_RATE4_B4 0x284
> #define QSERDES_UFS_V6_RX_MODE_RATE4_B6 0x28c
> +#define QSERDES_UFS_V6_RX_DLL0_FTUNE_CTRL 0x2f8
>
> #endif
> diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
> index 3927eba..e0a01497 100644
> --- a/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
> +++ b/drivers/phy/qualcomm/phy-qcom-qmp-ufs.c
> @@ -649,32 +649,51 @@ static const struct qmp_phy_init_tbl sm8550_ufsphy_serdes[] = {
> QMP_PHY_INIT_CFG(QSERDES_V6_COM_HSCLK_SEL_1, 0x11),
> QMP_PHY_INIT_CFG(QSERDES_V6_COM_HSCLK_HS_SWITCH_SEL_1, 0x00),
> QMP_PHY_INIT_CFG(QSERDES_V6_COM_LOCK_CMP_EN, 0x01),
> - QMP_PHY_INIT_CFG(QSERDES_V6_COM_VCO_TUNE_MAP, 0x04),
> - QMP_PHY_INIT_CFG(QSERDES_V6_COM_PLL_IVCO, 0x0f),
> +
> QMP_PHY_INIT_CFG(QSERDES_V6_COM_VCO_TUNE_INITVAL2, 0x00),
> QMP_PHY_INIT_CFG(QSERDES_V6_COM_DEC_START_MODE0, 0x41),
> - 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, 0x7f),
> QMP_PHY_INIT_CFG(QSERDES_V6_COM_LOCK_CMP2_MODE0, 0x06),
> - QMP_PHY_INIT_CFG(QSERDES_V6_COM_DEC_START_MODE0, 0x4c),
> +};
> +
> +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_g4_serdes[] = {
> + QMP_PHY_INIT_CFG(QSERDES_V6_COM_VCO_TUNE_MAP, 0x04),
> + QMP_PHY_INIT_CFG(QSERDES_V6_COM_PLL_IVCO, 0x0f),
> 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_g5_serdes[] = {
> + QMP_PHY_INIT_CFG(QSERDES_V6_COM_PLL_IVCO, 0x1f),
> +
> + QMP_PHY_INIT_CFG(QSERDES_V6_COM_CMN_IETRIM, 0x1b),
> + QMP_PHY_INIT_CFG(QSERDES_V6_COM_CMN_IPTRIM, 0x1c),
> + QMP_PHY_INIT_CFG(QSERDES_V6_COM_CP_CTRL_MODE0, 0x06),
> };
>
> 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),
> };
>
> +static const struct qmp_phy_init_tbl sm8550_ufsphy_g4_tx[] = {
> + 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_VGA_CAL_MAN_VAL, 0x0e),
> + QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_UCDR_FO_GAIN_RATE2, 0x0c),
>
> QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_MODE_RATE_0_1_B0, 0xc2),
> QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_MODE_RATE_0_1_B1, 0xc2),
> @@ -690,14 +709,46 @@ static const struct qmp_phy_init_tbl sm8550_ufsphy_rx[] = {
> QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_MODE_RATE3_B8, 0x02),
> };
>
> +static const struct qmp_phy_init_tbl sm8550_ufsphy_g4_rx[] = {
> + QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_VGA_CAL_MAN_VAL, 0x0e),
> +};
> +
> +static const struct qmp_phy_init_tbl sm8550_ufsphy_g5_rx[] = {
> + QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_UCDR_FO_GAIN_RATE4, 0x0c),
> + QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_UCDR_SO_GAIN_RATE4, 0x04),
> + QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_EQ_OFFSET_ADAPTOR_CNTRL1, 0x14),
> + QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_UCDR_PI_CONTROLS, 0x07),
> + QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_OFFSET_ADAPTOR_CNTRL3, 0x0e),
> + QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_UCDR_FASTLOCK_COUNT_HIGH_RATE4, 0x02),
> + QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_UCDR_FASTLOCK_FO_GAIN_RATE4, 0x1c),
> + QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_UCDR_FASTLOCK_SO_GAIN_RATE4, 0x06),
> + QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_VGA_CAL_MAN_VAL, 0x08),
> +
> + QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_MODE_RATE4_B3, 0xb9),
> + QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_MODE_RATE4_B4, 0x4f),
> + QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_MODE_RATE4_B6, 0xff),
> + QMP_PHY_INIT_CFG(QSERDES_UFS_V6_RX_DLL0_FTUNE_CTRL, 0x30),
> +};
> +
> static const struct qmp_phy_init_tbl sm8550_ufsphy_pcs[] = {
> QMP_PHY_INIT_CFG(QPHY_V6_PCS_UFS_RX_SIGDET_CTRL2, 0x69),
> QMP_PHY_INIT_CFG(QPHY_V6_PCS_UFS_TX_LARGE_AMP_DRV_LVL, 0x0f),
> 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),
> };
>
> +static const struct qmp_phy_init_tbl sm8550_ufsphy_g4_pcs[] = {
> + QMP_PHY_INIT_CFG(QPHY_V6_PCS_UFS_PLL_CNTL, 0x2b),
> + 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 sm8550_ufsphy_g5_pcs[] = {
> + QMP_PHY_INIT_CFG(QPHY_V6_PCS_UFS_PLL_CNTL, 0x33),
> + QMP_PHY_INIT_CFG(QPHY_V6_PCS_UFS_RX_HS_G5_SYNC_LENGTH_CAPABILITY, 0x4f),
> + QMP_PHY_INIT_CFG(QPHY_V6_PCS_UFS_RX_HSG5_SYNC_WAIT_TIME, 0x9e),
> +};
> +
> struct qmp_ufs_offsets {
> u16 serdes;
> u16 pcs;
> @@ -731,6 +782,8 @@ struct qmp_phy_cfg {
> const struct qmp_phy_cfg_tbls tbls_hs_b;
> /* Additional sequence for HS G4 */
> const struct qmp_phy_cfg_tbls tbls_hs_g4;
> + /* Additional sequence for HS G4 */
> + const struct qmp_phy_cfg_tbls tbls_hs_g5;
>
> /* clock ids to be requested */
> const char * const *clk_list;
> @@ -1157,6 +1210,28 @@ 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),
> + },
> + .tbls_hs_g4 = {
> + .serdes = sm8550_ufsphy_g4_serdes,
> + .serdes_num = ARRAY_SIZE(sm8550_ufsphy_g4_serdes),
> + .tx = sm8550_ufsphy_g4_tx,
> + .tx_num = ARRAY_SIZE(sm8550_ufsphy_g4_tx),
> + .rx = sm8550_ufsphy_g4_rx,
> + .rx_num = ARRAY_SIZE(sm8550_ufsphy_g4_rx),
> + .pcs = sm8550_ufsphy_g4_pcs,
> + .pcs_num = ARRAY_SIZE(sm8550_ufsphy_g4_pcs),
> + },
> + .tbls_hs_g5 = {
> + .serdes = sm8550_ufsphy_g5_serdes,
> + .serdes_num = ARRAY_SIZE(sm8550_ufsphy_g5_serdes),
> + .rx = sm8550_ufsphy_g5_rx,
> + .rx_num = ARRAY_SIZE(sm8550_ufsphy_g5_rx),
> + .pcs = sm8550_ufsphy_g5_pcs,
> + .pcs_num = ARRAY_SIZE(sm8550_ufsphy_g5_pcs),
> + },
> .clk_list = sdm845_ufs_phy_clk_l,
> .num_clks = ARRAY_SIZE(sdm845_ufs_phy_clk_l),
> .vreg_list = qmp_phy_vreg_l,
> @@ -1222,14 +1297,25 @@ static void qmp_ufs_pcs_init(struct qmp_ufs *qmp, const struct qmp_phy_cfg_tbls
> static void qmp_ufs_init_registers(struct qmp_ufs *qmp, const struct qmp_phy_cfg *cfg)
> {
> qmp_ufs_serdes_init(qmp, &cfg->tbls);
> + if (qmp->submode == UFS_HS_G4)
> + qmp_ufs_serdes_init(qmp, &cfg->tbls_hs_g4);
> + else if (qmp->submode == UFS_HS_G5)
> + qmp_ufs_serdes_init(qmp, &cfg->tbls_hs_g5);
> +
> if (qmp->mode == PHY_MODE_UFS_HS_B)
> qmp_ufs_serdes_init(qmp, &cfg->tbls_hs_b);
> +
> qmp_ufs_lanes_init(qmp, &cfg->tbls);
> if (qmp->submode == UFS_HS_G4)
> qmp_ufs_lanes_init(qmp, &cfg->tbls_hs_g4);
> + else if (qmp->submode == UFS_HS_G5)
> + qmp_ufs_lanes_init(qmp, &cfg->tbls_hs_g5);
> +
> qmp_ufs_pcs_init(qmp, &cfg->tbls);
> if (qmp->submode == UFS_HS_G4)
> qmp_ufs_pcs_init(qmp, &cfg->tbls_hs_g4);
> + else if (qmp->submode == UFS_HS_G5)
> + qmp_ufs_pcs_init(qmp, &cfg->tbls_hs_g5);
> }
>
> static int qmp_ufs_com_init(struct qmp_ufs *qmp)
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