[PATCH 04/17] phy: qcom: Add QMP UFS PHY driver

Add Qualcomm QMP UFS PHY driver which is available on the following Snapdragon SoCs - SDM845, SM6115 and SM8250 SoCs.

Signed-off-by: Bhupesh Sharma bhupesh.sharma@linaro.org --- drivers/phy/qcom/Kconfig | 6 + drivers/phy/qcom/Makefile | 1 + drivers/phy/qcom/phy-qcom-qmp-ufs.c | 996 ++++++++++++++++++++++++++++ drivers/phy/qcom/phy-qcom-qmp.h | 115 ++++ 4 files changed, 1118 insertions(+) create mode 100644 drivers/phy/qcom/phy-qcom-qmp-ufs.c create mode 100644 drivers/phy/qcom/phy-qcom-qmp.h

diff --git a/drivers/phy/qcom/Kconfig b/drivers/phy/qcom/Kconfig index f4ca174805..38536566ca 100644 --- a/drivers/phy/qcom/Kconfig +++ b/drivers/phy/qcom/Kconfig @@ -12,6 +12,12 @@ config PHY_QCOM_IPQ4019_USB help Support for the USB PHY-s on Qualcomm IPQ40xx SoC-s.

+config PHY_QCOM_QMP_UFS + tristate "Qualcomm QMP UFS PHY driver" + depends on PHY && ARCH_SNAPDRAGON + help + Enable this to support the UFS QMP PHY on various Qualcomm chipsets. + config PHY_QCOM_USB_HS_28NM tristate "Qualcomm 28nm High-Speed PHY" depends on PHY && ARCH_SNAPDRAGON diff --git a/drivers/phy/qcom/Makefile b/drivers/phy/qcom/Makefile index 2113f178c0..e804f127b0 100644 --- a/drivers/phy/qcom/Makefile +++ b/drivers/phy/qcom/Makefile @@ -1,4 +1,5 @@ obj-$(CONFIG_PHY_QCOM_IPQ4019_USB) += phy-qcom-ipq4019-usb.o obj-$(CONFIG_MSM8916_USB_PHY) += msm8916-usbh-phy.o +obj-$(CONFIG_PHY_QCOM_QMP_UFS) += phy-qcom-qmp-ufs.o obj-$(CONFIG_PHY_QCOM_USB_HS_28NM) += phy-qcom-usb-hs-28nm.o obj-$(CONFIG_PHY_QCOM_USB_SS) += phy-qcom-usb-ss.o diff --git a/drivers/phy/qcom/phy-qcom-qmp-ufs.c b/drivers/phy/qcom/phy-qcom-qmp-ufs.c new file mode 100644 index 0000000000..16e95175bb --- /dev/null +++ b/drivers/phy/qcom/phy-qcom-qmp-ufs.c @@ -0,0 +1,996 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Copyright (C) 2023 Bhupesh Sharma bhupesh.sharma@linaro.org + * + * Based on Linux driver + */ + +#include <clk.h> +#include <clk-uclass.h> +#include <common.h> +#include <dm.h> +#include <dm/device_compat.h> +#include <dm/devres.h> +#include <generic-phy.h> +#include <malloc.h> +#include <reset.h> + +#include <asm/io.h> +#include <linux/bitops.h> +#include <linux/clk-provider.h> +#include <linux/delay.h> +#include <linux/iopoll.h> +#include <linux/ioport.h> + +#include <dt-bindings/clock/qcom,gcc-sm6115.h> + +#include "phy-qcom-qmp.h" +#include "phy-qcom-qmp-pcs-ufs-v2.h" +#include "phy-qcom-qmp-pcs-ufs-v3.h" +#include "phy-qcom-qmp-pcs-ufs-v4.h" +#include "phy-qcom-qmp-pcs-ufs-v5.h" +#include "phy-qcom-qmp-pcs-ufs-v6.h" + +#include "phy-qcom-qmp-qserdes-com-v4.h" +#include "phy-qcom-qmp-qserdes-txrx-v4.h" +#include "phy-qcom-qmp-qserdes-txrx-ufs-v6.h" + +/* QPHY_SW_RESET bit */ +#define SW_RESET BIT(0) +/* QPHY_POWER_DOWN_CONTROL */ +#define SW_PWRDN BIT(0) +/* QPHY_START_CONTROL bits */ +#define SERDES_START BIT(0) +#define PCS_START BIT(1) +/* QPHY_PCS_READY_STATUS bit */ +#define PCS_READY BIT(0) + +#define PHY_INIT_COMPLETE_TIMEOUT (200 * 10000) + +struct qmp_ufs_init_tbl { + unsigned int offset; + unsigned int val; + /* + * mask of lanes for which this register is written + * for cases when second lane needs different values + */ + u8 lane_mask; +}; + +#define QMP_PHY_INIT_CFG(o, v) \ + { \ + .offset = o, \ + .val = v, \ + .lane_mask = 0xff, \ + } + +#define QMP_PHY_INIT_CFG_LANE(o, v, l) \ + { \ + .offset = o, \ + .val = v, \ + .lane_mask = l, \ + } + +enum ufs_hs_gear_tag { + UFS_HS_DONT_CHANGE, /* Don't change Gear */ + UFS_HS_G1, /* HS Gear 1 (default for reset) */ + UFS_HS_G2, /* HS Gear 2 */ + UFS_HS_G3, /* HS Gear 3 */ + UFS_HS_G4, /* HS Gear 4 */ + UFS_HS_G5 /* HS Gear 5 */ +}; + +/* set of registers with offsets different per-PHY */ +enum qphy_reg_layout { + /* PCS registers */ + QPHY_SW_RESET, + QPHY_START_CTRL, + QPHY_PCS_READY_STATUS, + QPHY_PCS_POWER_DOWN_CONTROL, + /* Keep last to ensure regs_layout arrays are properly initialized */ + QPHY_LAYOUT_SIZE +}; + +static const unsigned int ufsphy_v2_regs_layout[QPHY_LAYOUT_SIZE] = { + [QPHY_START_CTRL] = QPHY_V2_PCS_UFS_PHY_START, + [QPHY_PCS_READY_STATUS] = QPHY_V2_PCS_UFS_READY_STATUS, + [QPHY_PCS_POWER_DOWN_CONTROL] = QPHY_V2_PCS_UFS_POWER_DOWN_CONTROL, +}; + +static const unsigned int ufsphy_v3_regs_layout[QPHY_LAYOUT_SIZE] = { + [QPHY_START_CTRL] = QPHY_V3_PCS_UFS_PHY_START, + [QPHY_PCS_READY_STATUS] = QPHY_V3_PCS_UFS_READY_STATUS, + [QPHY_PCS_POWER_DOWN_CONTROL] = QPHY_V3_PCS_UFS_POWER_DOWN_CONTROL, +}; + +static const unsigned int ufsphy_v4_regs_layout[QPHY_LAYOUT_SIZE] = { + [QPHY_START_CTRL] = QPHY_V4_PCS_UFS_PHY_START, + [QPHY_PCS_READY_STATUS] = QPHY_V4_PCS_UFS_READY_STATUS, + [QPHY_SW_RESET] = QPHY_V4_PCS_UFS_SW_RESET, + [QPHY_PCS_POWER_DOWN_CONTROL] = QPHY_V4_PCS_UFS_POWER_DOWN_CONTROL, +}; + +static const struct qmp_ufs_init_tbl sdm845_ufsphy_serdes[] = { + QMP_PHY_INIT_CFG(QSERDES_V3_COM_SYS_CLK_CTRL, 0x02), + QMP_PHY_INIT_CFG(QSERDES_V3_COM_BIAS_EN_CLKBUFLR_EN, 0x04), + QMP_PHY_INIT_CFG(QSERDES_V3_COM_BG_TIMER, 0x0a), + QMP_PHY_INIT_CFG(QSERDES_V3_COM_PLL_IVCO, 0x07), + 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), +}; + +static const struct qmp_ufs_init_tbl sdm845_ufsphy_hs_b_serdes[] = { + QMP_PHY_INIT_CFG(QSERDES_V3_COM_VCO_TUNE_MAP, 0x44), +}; + +static const struct qmp_ufs_init_tbl sdm845_ufsphy_tx[] = { + QMP_PHY_INIT_CFG(QSERDES_V3_TX_LANE_MODE_1, 0x06), + QMP_PHY_INIT_CFG(QSERDES_V3_TX_RES_CODE_LANE_OFFSET_TX, 0x04), + QMP_PHY_INIT_CFG(QSERDES_V3_TX_RES_CODE_LANE_OFFSET_RX, 0x07), +}; + +static const struct qmp_ufs_init_tbl sdm845_ufsphy_rx[] = { + 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, 0x1b), + 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), + QMP_PHY_INIT_CFG(QSERDES_V3_RX_RX_MODE_00, 0x59), +}; + +static const struct qmp_ufs_init_tbl sdm845_ufsphy_pcs[] = { + QMP_PHY_INIT_CFG(QPHY_V3_PCS_UFS_RX_SIGDET_CTRL2, 0x6e), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_UFS_TX_LARGE_AMP_DRV_LVL, 0x0a), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_UFS_TX_SMALL_AMP_DRV_LVL, 0x02), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_UFS_RX_SYM_RESYNC_CTRL, 0x03), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_UFS_TX_MID_TERM_CTRL1, 0x43), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_UFS_RX_SIGDET_CTRL1, 0x0f), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_UFS_RX_MIN_HIBERN8_TIME, 0x9a), + QMP_PHY_INIT_CFG(QPHY_V3_PCS_UFS_MULTI_LANE_CTRL1, 0x02), +}; + +static const struct qmp_ufs_init_tbl sm6115_ufsphy_serdes[] = { + QMP_PHY_INIT_CFG(QSERDES_COM_CMN_CONFIG, 0x0e), + QMP_PHY_INIT_CFG(QSERDES_COM_SYSCLK_EN_SEL, 0x14), + QMP_PHY_INIT_CFG(QSERDES_COM_CLK_SELECT, 0x30), + QMP_PHY_INIT_CFG(QSERDES_COM_SYS_CLK_CTRL, 0x02), + QMP_PHY_INIT_CFG(QSERDES_COM_BIAS_EN_CLKBUFLR_EN, 0x08), + QMP_PHY_INIT_CFG(QSERDES_COM_BG_TIMER, 0x0a), + QMP_PHY_INIT_CFG(QSERDES_COM_HSCLK_SEL, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_CORECLK_DIV, 0x0a), + QMP_PHY_INIT_CFG(QSERDES_COM_CORECLK_DIV_MODE1, 0x0a), + QMP_PHY_INIT_CFG(QSERDES_COM_LOCK_CMP_EN, 0x01), + QMP_PHY_INIT_CFG(QSERDES_COM_VCO_TUNE_CTRL, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_RESETSM_CNTRL, 0x20), + QMP_PHY_INIT_CFG(QSERDES_COM_CORE_CLK_EN, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_LOCK_CMP_CFG, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_VCO_TUNE_TIMER1, 0xff), + QMP_PHY_INIT_CFG(QSERDES_COM_VCO_TUNE_TIMER2, 0x3f), + QMP_PHY_INIT_CFG(QSERDES_COM_VCO_TUNE_MAP, 0x04), + QMP_PHY_INIT_CFG(QSERDES_COM_SVS_MODE_CLK_SEL, 0x05), + QMP_PHY_INIT_CFG(QSERDES_COM_DEC_START_MODE0, 0x82), + QMP_PHY_INIT_CFG(QSERDES_COM_DIV_FRAC_START1_MODE0, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_DIV_FRAC_START2_MODE0, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_DIV_FRAC_START3_MODE0, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_CP_CTRL_MODE0, 0x0b), + QMP_PHY_INIT_CFG(QSERDES_COM_PLL_RCTRL_MODE0, 0x16), + QMP_PHY_INIT_CFG(QSERDES_COM_PLL_CCTRL_MODE0, 0x28), + QMP_PHY_INIT_CFG(QSERDES_COM_INTEGLOOP_GAIN0_MODE0, 0x80), + QMP_PHY_INIT_CFG(QSERDES_COM_INTEGLOOP_GAIN1_MODE0, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_VCO_TUNE1_MODE0, 0x28), + QMP_PHY_INIT_CFG(QSERDES_COM_VCO_TUNE2_MODE0, 0x02), + QMP_PHY_INIT_CFG(QSERDES_COM_LOCK_CMP1_MODE0, 0xff), + QMP_PHY_INIT_CFG(QSERDES_COM_LOCK_CMP2_MODE0, 0x0c), + QMP_PHY_INIT_CFG(QSERDES_COM_LOCK_CMP3_MODE0, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_DEC_START_MODE1, 0x98), + QMP_PHY_INIT_CFG(QSERDES_COM_DIV_FRAC_START1_MODE1, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_DIV_FRAC_START2_MODE1, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_DIV_FRAC_START3_MODE1, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_CP_CTRL_MODE1, 0x0b), + QMP_PHY_INIT_CFG(QSERDES_COM_PLL_RCTRL_MODE1, 0x16), + QMP_PHY_INIT_CFG(QSERDES_COM_PLL_CCTRL_MODE1, 0x28), + QMP_PHY_INIT_CFG(QSERDES_COM_INTEGLOOP_GAIN0_MODE1, 0x80), + QMP_PHY_INIT_CFG(QSERDES_COM_INTEGLOOP_GAIN1_MODE1, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_VCO_TUNE1_MODE1, 0xd6), + QMP_PHY_INIT_CFG(QSERDES_COM_VCO_TUNE2_MODE1, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_LOCK_CMP1_MODE1, 0x32), + QMP_PHY_INIT_CFG(QSERDES_COM_LOCK_CMP2_MODE1, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_COM_LOCK_CMP3_MODE1, 0x00), + QMP_PHY_INIT_CFG(QSERDES_COM_PLL_IVCO, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_COM_BG_TRIM, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_COM_VCO_TUNE_INITVAL1, 0xff), + QMP_PHY_INIT_CFG(QSERDES_COM_VCO_TUNE_INITVAL2, 0x00), +}; + +static const struct qmp_ufs_init_tbl sm6115_ufsphy_hs_b_serdes[] = { + QMP_PHY_INIT_CFG(QSERDES_COM_VCO_TUNE_MAP, 0x44), +}; + +static const struct qmp_ufs_init_tbl sm6115_ufsphy_tx[] = { + QMP_PHY_INIT_CFG(QSERDES_TX_HIGHZ_TRANSCEIVEREN_BIAS_DRVR_EN, 0x45), + QMP_PHY_INIT_CFG(QSERDES_TX_LANE_MODE, 0x06), +}; + +static const struct qmp_ufs_init_tbl sm6115_ufsphy_rx[] = { + QMP_PHY_INIT_CFG(QSERDES_RX_SIGDET_LVL, 0x24), + QMP_PHY_INIT_CFG(QSERDES_RX_SIGDET_CNTRL, 0x0F), + QMP_PHY_INIT_CFG(QSERDES_RX_RX_INTERFACE_MODE, 0x40), + QMP_PHY_INIT_CFG(QSERDES_RX_SIGDET_DEGLITCH_CNTRL, 0x1E), + QMP_PHY_INIT_CFG(QSERDES_RX_UCDR_FASTLOCK_FO_GAIN, 0x0B), + QMP_PHY_INIT_CFG(QSERDES_RX_RX_TERM_BW, 0x5B), + QMP_PHY_INIT_CFG(QSERDES_RX_RX_EQ_GAIN1_LSB, 0xFF), + QMP_PHY_INIT_CFG(QSERDES_RX_RX_EQ_GAIN1_MSB, 0x3F), + QMP_PHY_INIT_CFG(QSERDES_RX_RX_EQ_GAIN2_LSB, 0xFF), + QMP_PHY_INIT_CFG(QSERDES_RX_RX_EQ_GAIN2_MSB, 0x3F), + QMP_PHY_INIT_CFG(QSERDES_RX_RX_EQU_ADAPTOR_CNTRL2, 0x0D), + QMP_PHY_INIT_CFG(QSERDES_RX_UCDR_SVS_SO_GAIN_HALF, 0x04), + QMP_PHY_INIT_CFG(QSERDES_RX_UCDR_SVS_SO_GAIN_QUARTER, 0x04), + QMP_PHY_INIT_CFG(QSERDES_RX_UCDR_SVS_SO_GAIN, 0x04), + QMP_PHY_INIT_CFG(QSERDES_RX_UCDR_SO_SATURATION_AND_ENABLE, 0x5B), +}; + +static const struct qmp_ufs_init_tbl sm6115_ufsphy_pcs[] = { + QMP_PHY_INIT_CFG(QPHY_V2_PCS_UFS_RX_PWM_GEAR_BAND, 0x15), + QMP_PHY_INIT_CFG(QPHY_V2_PCS_UFS_RX_SIGDET_CTRL2, 0x6d), + QMP_PHY_INIT_CFG(QPHY_V2_PCS_UFS_TX_LARGE_AMP_DRV_LVL, 0x0f), + QMP_PHY_INIT_CFG(QPHY_V2_PCS_UFS_TX_SMALL_AMP_DRV_LVL, 0x02), + QMP_PHY_INIT_CFG(QPHY_V2_PCS_UFS_RX_MIN_STALL_NOCONFIG_TIME_CAP, 0x28), + QMP_PHY_INIT_CFG(QPHY_V2_PCS_UFS_RX_SYM_RESYNC_CTRL, 0x03), + QMP_PHY_INIT_CFG(QPHY_V2_PCS_UFS_TX_LARGE_AMP_POST_EMP_LVL, 0x12), + QMP_PHY_INIT_CFG(QPHY_V2_PCS_UFS_TX_SMALL_AMP_POST_EMP_LVL, 0x0f), + QMP_PHY_INIT_CFG(QPHY_V2_PCS_UFS_RX_MIN_HIBERN8_TIME, 0x9a), /* 8 us */ +}; + +static const struct qmp_ufs_init_tbl sm8150_ufsphy_serdes[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_COM_SYSCLK_EN_SEL, 0xd9), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_HSCLK_SEL, 0x11), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_HSCLK_HS_SWITCH_SEL, 0x00), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP_EN, 0x01), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_VCO_TUNE_MAP, 0x02), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_IVCO, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_VCO_TUNE_INITVAL2, 0x00), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_HSCLK_SEL, 0x11), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DEC_START_MODE0, 0x82), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_CP_CTRL_MODE0, 0x06), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_RCTRL_MODE0, 0x16), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_CCTRL_MODE0, 0x36), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP1_MODE0, 0xff), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP2_MODE0, 0x0c), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE1_MODE0, 0xac), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE2_MODE0, 0x1e), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_DEC_START_MODE1, 0x98), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_CP_CTRL_MODE1, 0x06), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_RCTRL_MODE1, 0x16), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_PLL_CCTRL_MODE1, 0x36), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP1_MODE1, 0x32), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_LOCK_CMP2_MODE1, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE1_MODE1, 0xdd), + QMP_PHY_INIT_CFG(QSERDES_V4_COM_BIN_VCOCAL_CMP_CODE2_MODE1, 0x23), +}; + +static const struct qmp_ufs_init_tbl sm8150_ufsphy_hs_b_serdes[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_COM_VCO_TUNE_MAP, 0x06), +}; + +static const struct qmp_ufs_init_tbl sm8150_ufsphy_tx[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_TX_PWM_GEAR_1_DIVIDER_BAND0_1, 0x06), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_PWM_GEAR_2_DIVIDER_BAND0_1, 0x03), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_PWM_GEAR_3_DIVIDER_BAND0_1, 0x01), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_PWM_GEAR_4_DIVIDER_BAND0_1, 0x00), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_LANE_MODE_1, 0x05), + QMP_PHY_INIT_CFG(QSERDES_V4_TX_TRAN_DRVR_EMP_EN, 0x0c), +}; + +static const struct qmp_ufs_init_tbl sm8150_ufsphy_rx[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_RX_SIGDET_LVL, 0x24), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_SIGDET_CNTRL, 0x0f), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_SIGDET_DEGLITCH_CNTRL, 0x1e), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_BAND, 0x18), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FASTLOCK_FO_GAIN, 0x0a), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SO_SATURATION_AND_ENABLE, 0x4b), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_PI_CONTROLS, 0xf1), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FASTLOCK_COUNT_LOW, 0x80), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_PI_CTRL2, 0x80), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_FO_GAIN, 0x0c), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_UCDR_SO_GAIN, 0x04), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_TERM_BW, 0x1b), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL2, 0x06), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL3, 0x04), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_EQU_ADAPTOR_CNTRL4, 0x1d), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_OFFSET_ADAPTOR_CNTRL2, 0x00), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_IDAC_MEASURE_TIME, 0x10), + 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_MODE_00_LOW, 0x36), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH, 0x36), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH2, 0xf6), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH3, 0x3b), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_00_HIGH4, 0x3d), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_LOW, 0xe0), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH, 0xc8), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH2, 0xc8), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH3, 0x3b), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_01_HIGH4, 0xb1), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_10_LOW, 0xe0), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_10_HIGH, 0xc8), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_10_HIGH2, 0xc8), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_10_HIGH3, 0x3b), + QMP_PHY_INIT_CFG(QSERDES_V4_RX_RX_MODE_10_HIGH4, 0xb1), +}; + +static const struct qmp_ufs_init_tbl sm8150_ufsphy_pcs[] = { + QMP_PHY_INIT_CFG(QPHY_V4_PCS_UFS_RX_SIGDET_CTRL2, 0x6d), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_UFS_TX_LARGE_AMP_DRV_LVL, 0x0a), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_UFS_TX_SMALL_AMP_DRV_LVL, 0x02), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_UFS_TX_MID_TERM_CTRL1, 0x43), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_UFS_DEBUG_BUS_CLKSEL, 0x1f), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_UFS_RX_MIN_HIBERN8_TIME, 0xff), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_UFS_MULTI_LANE_CTRL1, 0x02), +}; + +static const struct qmp_ufs_init_tbl sm8150_ufsphy_hs_g4_pcs[] = { + QMP_PHY_INIT_CFG(QPHY_V4_PCS_UFS_TX_LARGE_AMP_DRV_LVL, 0x10), + QMP_PHY_INIT_CFG(QPHY_V4_PCS_UFS_BIST_FIXED_PAT_CTRL, 0x0a), +}; + +static const struct qmp_ufs_init_tbl sm8250_ufsphy_hs_g4_tx[] = { + QMP_PHY_INIT_CFG(QSERDES_V4_TX_LANE_MODE_1, 0xe5), +}; + +static const struct qmp_ufs_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), +}; + +struct qmp_ufs_offsets { + u16 serdes; + u16 pcs; + u16 tx; + u16 rx; + /* for PHYs with >= 2 lanes */ + u16 tx2; + u16 rx2; +}; + +struct qmp_ufs_cfg_tbls { + /* Init sequence for PHY blocks - serdes, tx, rx, pcs */ + const struct qmp_ufs_init_tbl *serdes; + int serdes_num; + const struct qmp_ufs_init_tbl *tx; + int tx_num; + const struct qmp_ufs_init_tbl *rx; + int rx_num; + const struct qmp_ufs_init_tbl *pcs; + int pcs_num; +}; + +/* struct qmp_ufs_cfg - per-PHY initialization config */ +struct qmp_ufs_cfg { + int lanes; + + const struct qmp_ufs_offsets *offsets; + + /* Main init sequence for PHY blocks - serdes, tx, rx, pcs */ + const struct qmp_ufs_cfg_tbls tbls; + /* Additional sequence for HS Series B */ + const struct qmp_ufs_cfg_tbls tbls_hs_b; + /* Additional sequence for HS G4 */ + const struct qmp_ufs_cfg_tbls tbls_hs_g4; + + /* clock ids to be requested */ + const char * const *clk_list; + int num_clks; + /* regulators to be requested */ + const char * const *vreg_list; + int num_vregs; + /* resets to be requested */ + const char * const *reset_list; + int num_resets; + + /* array of registers with different offsets */ + const unsigned int *regs; + + /* true, if PCS block has no separate SW_RESET register */ + bool no_pcs_sw_reset; +}; + +struct qmp_ufs_priv { + struct phy *phy; + + void __iomem *serdes; + void __iomem *pcs; + void __iomem *pcs_misc; + void __iomem *tx; + void __iomem *rx; + void __iomem *tx2; + void __iomem *rx2; + + struct clk *clks; + unsigned int clk_count; + + struct reset_ctl *resets; + unsigned int reset_count; + + const struct qmp_ufs_cfg *cfg; + + struct udevice *dev; + + u32 mode; + u32 submode; +}; + +static inline void qphy_setbits(void __iomem *base, u32 offset, u32 val) +{ + u32 reg; + + reg = readl(base + offset); + reg |= val; + writel(reg, base + offset); + + /* ensure that above write is through */ + readl(base + offset); +} + +static inline void qphy_clrbits(void __iomem *base, u32 offset, u32 val) +{ + u32 reg; + + reg = readl(base + offset); + reg &= ~val; + writel(reg, base + offset); + + /* ensure that above write is through */ + readl(base + offset); +} + +/* list of clocks required by phy */ +static const char * const sdm845_ufs_phy_clk_l[] = { + "ref", "ref_aux", +}; + +/* list of regulators */ +static const char * const qmp_ufs_vreg_l[] = { + "vdda-phy", "vdda-pll", +}; + +/* list of resets */ +static const char * const qmp_ufs_reset_l[] = { + "ufsphy", +}; + +static const struct qmp_ufs_offsets qmp_ufs_offsets = { + .serdes = 0, + .pcs = 0xc00, + .tx = 0x400, + .rx = 0x600, + .tx2 = 0x800, + .rx2 = 0xa00, +}; + +static const struct qmp_ufs_cfg sdm845_ufsphy_cfg = { + .lanes = 2, + + .tbls = { + .serdes = sdm845_ufsphy_serdes, + .serdes_num = ARRAY_SIZE(sdm845_ufsphy_serdes), + .tx = sdm845_ufsphy_tx, + .tx_num = ARRAY_SIZE(sdm845_ufsphy_tx), + .rx = sdm845_ufsphy_rx, + .rx_num = ARRAY_SIZE(sdm845_ufsphy_rx), + .pcs = sdm845_ufsphy_pcs, + .pcs_num = ARRAY_SIZE(sdm845_ufsphy_pcs), + }, + .tbls_hs_b = { + .serdes = sdm845_ufsphy_hs_b_serdes, + .serdes_num = ARRAY_SIZE(sdm845_ufsphy_hs_b_serdes), + }, + .clk_list = sdm845_ufs_phy_clk_l, + .num_clks = ARRAY_SIZE(sdm845_ufs_phy_clk_l), + .vreg_list = qmp_ufs_vreg_l, + .num_vregs = ARRAY_SIZE(qmp_ufs_vreg_l), + .regs = ufsphy_v3_regs_layout, + + .no_pcs_sw_reset = true, +}; + +static const struct qmp_ufs_cfg sm6115_ufsphy_cfg = { + .lanes = 1, + + .offsets = &qmp_ufs_offsets, + + .tbls = { + .serdes = sm6115_ufsphy_serdes, + .serdes_num = ARRAY_SIZE(sm6115_ufsphy_serdes), + .tx = sm6115_ufsphy_tx, + .tx_num = ARRAY_SIZE(sm6115_ufsphy_tx), + .rx = sm6115_ufsphy_rx, + .rx_num = ARRAY_SIZE(sm6115_ufsphy_rx), + .pcs = sm6115_ufsphy_pcs, + .pcs_num = ARRAY_SIZE(sm6115_ufsphy_pcs), + }, + .tbls_hs_b = { + .serdes = sm6115_ufsphy_hs_b_serdes, + .serdes_num = ARRAY_SIZE(sm6115_ufsphy_hs_b_serdes), + }, + .clk_list = sdm845_ufs_phy_clk_l, + .num_clks = ARRAY_SIZE(sdm845_ufs_phy_clk_l), + .vreg_list = qmp_ufs_vreg_l, + .num_vregs = ARRAY_SIZE(qmp_ufs_vreg_l), + .reset_list = qmp_ufs_reset_l, + .num_resets = ARRAY_SIZE(qmp_ufs_reset_l), + .regs = ufsphy_v2_regs_layout, + + .no_pcs_sw_reset = true, +}; + +static const struct qmp_ufs_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_ufs_vreg_l, + .num_vregs = ARRAY_SIZE(qmp_ufs_vreg_l), + .reset_list = qmp_ufs_reset_l, + .num_resets = ARRAY_SIZE(qmp_ufs_reset_l), + .regs = ufsphy_v4_regs_layout, + + .no_pcs_sw_reset = false, +}; + +static void qmp_ufs_configure_lane(void __iomem *base, + const struct qmp_ufs_init_tbl tbl[], + int num, + u8 lane_mask) +{ + int i; + const struct qmp_ufs_init_tbl *t = tbl; + + if (!t) + return; + + for (i = 0; i < num; i++, t++) { + if (!(t->lane_mask & lane_mask)) + continue; + + writel(t->val, base + t->offset); + } +} + +static void qmp_ufs_configure(void __iomem *base, + const struct qmp_ufs_init_tbl tbl[], + int num) +{ + qmp_ufs_configure_lane(base, tbl, num, 0xff); +} + +static void qmp_ufs_serdes_init(struct qmp_ufs_priv *qmp, const struct qmp_ufs_cfg_tbls *tbls) +{ + void __iomem *serdes = qmp->serdes; + + qmp_ufs_configure(serdes, tbls->serdes, tbls->serdes_num); +} + +static void qmp_ufs_lanes_init(struct qmp_ufs_priv *qmp, const struct qmp_ufs_cfg_tbls *tbls) +{ + const struct qmp_ufs_cfg *cfg = qmp->cfg; + void __iomem *tx = qmp->tx; + void __iomem *rx = qmp->rx; + + qmp_ufs_configure_lane(tx, tbls->tx, tbls->tx_num, 1); + qmp_ufs_configure_lane(rx, tbls->rx, tbls->rx_num, 1); + + if (cfg->lanes >= 2) { + qmp_ufs_configure_lane(qmp->tx2, tbls->tx, tbls->tx_num, 2); + qmp_ufs_configure_lane(qmp->rx2, tbls->rx, tbls->rx_num, 2); + } +} + +static void qmp_ufs_pcs_init(struct qmp_ufs_priv *qmp, const struct qmp_ufs_cfg_tbls *tbls) +{ + void __iomem *pcs = qmp->pcs; + + qmp_ufs_configure(pcs, tbls->pcs, tbls->pcs_num); +} + +static void qmp_ufs_init_registers(struct qmp_ufs_priv *qmp, const struct qmp_ufs_cfg *cfg) +{ + /* We support 'PHY_MODE_UFS_HS_B' mode & 'UFS_HS_G3' submode for now. */ + qmp_ufs_serdes_init(qmp, &cfg->tbls); + qmp_ufs_serdes_init(qmp, &cfg->tbls_hs_b); + qmp_ufs_lanes_init(qmp, &cfg->tbls); + qmp_ufs_pcs_init(qmp, &cfg->tbls); +} + +static int qmp_ufs_do_reset(struct qmp_ufs_priv *qmp) +{ + int i, ret; + + for (i = 0; i < qmp->reset_count; i++) { + ret = reset_assert(&qmp->resets[i]); + if (ret) + return ret; + } + + udelay(10); + + for (i = 0; i < qmp->reset_count; i++) { + ret = reset_deassert(&qmp->resets[i]); + if (ret) + return ret; + } + + udelay(50); + + return 0; +} + +static int qmp_ufs_power_on(struct phy *phy) +{ + struct qmp_ufs_priv *qmp = dev_get_priv(phy->dev); + const struct qmp_ufs_cfg *cfg = qmp->cfg; + void __iomem *pcs = qmp->pcs; + void __iomem *status; + unsigned int val; + int ret; + + /* Power down PHY */ + qphy_setbits(pcs, cfg->regs[QPHY_PCS_POWER_DOWN_CONTROL], SW_PWRDN); + + qmp_ufs_init_registers(qmp, cfg); + + if (cfg->no_pcs_sw_reset) { + ret = qmp_ufs_do_reset(qmp); + if (ret) { + printf("%s: qmp reset failed\n", __func__); + return ret; + } + } + + /* Pull PHY out of reset state */ + if (!cfg->no_pcs_sw_reset) + qphy_clrbits(pcs, cfg->regs[QPHY_SW_RESET], SW_RESET); + + /* start SerDes */ + qphy_setbits(pcs, cfg->regs[QPHY_START_CTRL], SERDES_START); + + status = pcs + cfg->regs[QPHY_PCS_READY_STATUS]; + ret = readl_poll_timeout(status, val, (val & PCS_READY), PHY_INIT_COMPLETE_TIMEOUT); + if (ret) { + printf("%s: phy initialization timed-out\n", __func__); + return ret; + } + + return 0; +} + +static int qmp_ufs_power_off(struct phy *phy) +{ + struct qmp_ufs_priv *qmp = dev_get_priv(phy->dev); + const struct qmp_ufs_cfg *cfg = qmp->cfg; + + /* PHY reset */ + qphy_setbits(qmp->pcs, cfg->regs[QPHY_SW_RESET], SW_RESET); + + /* stop SerDes and Phy-Coding-Sublayer */ + qphy_clrbits(qmp->pcs, cfg->regs[QPHY_START_CTRL], + SERDES_START | PCS_START); + + /* Put PHY into POWER DOWN state: active low */ + qphy_clrbits(qmp->pcs, cfg->regs[QPHY_PCS_POWER_DOWN_CONTROL], + SW_PWRDN); + + clk_release_all(qmp->clks, qmp->clk_count); + + return 0; +} + +static int qmp_ufs_vreg_init(struct udevice *dev, struct qmp_ufs_priv *qmp) +{ + // TBD: Add regulator support later - if needed + return 0; +} + +static int qmp_ufs_reset_init(struct udevice *dev, struct qmp_ufs_priv *qmp) +{ + const struct qmp_ufs_cfg *cfg = qmp->cfg; + int num = cfg->num_resets; + int i, ret; + + qmp->reset_count = 0; + qmp->resets = devm_kcalloc(dev, num, sizeof(*qmp->resets), GFP_KERNEL); + if (!qmp->resets) + return -ENOMEM; + + for (i = 0; i < num; i++) { + ret = reset_get_by_index(dev, i, &qmp->resets[i]); + if (ret < 0) { + printf("%s: failed to get reset %d\n", __func__, i); + goto reset_get_err; + } + + ++qmp->reset_count; + } + + return 0; + +reset_get_err: + ret = reset_release_all(qmp->resets, qmp->reset_count); + if (ret) + printf("%s: failed to disable all resets\n", __func__); + + return ret; +} + +static int qmp_ufs_clk_init(struct udevice *dev, struct qmp_ufs_priv *qmp) +{ + const struct qmp_ufs_cfg *cfg = qmp->cfg; + int num = cfg->num_clks; + int i, ret; + + qmp->clk_count = 0; + qmp->clks = devm_kcalloc(dev, num, sizeof(*qmp->clks), GFP_KERNEL); + if (!qmp->clks) + return -ENOMEM; + + for (i = 0; i < num; i++) { + ret = clk_get_by_index(dev, i, &qmp->clks[i]); + if (ret < 0) + goto clk_get_err; + + ret = clk_enable(&qmp->clks[i]); + if (ret && ret != -ENOSYS) { + printf("%s: failed to enable clock %d\n", __func__, i); + clk_free(&qmp->clks[i]); + goto clk_get_err; + } + + ++qmp->clk_count; + } + + return 0; + +clk_get_err: + ret = clk_release_all(qmp->clks, qmp->clk_count); + if (ret) + printf("%s: failed to disable all clocks\n", __func__); + + return ret; +} + +static int qmp_ufs_probe_generic_child(struct udevice *dev, + ofnode child) +{ + struct qmp_ufs_priv *qmp = dev_get_priv(dev); + const struct qmp_ufs_cfg *cfg = qmp->cfg; + struct resource res; + int ret; + + /* + * Get memory resources for the PHY: + * Resources are indexed as: tx -> 0; rx -> 1; pcs -> 2. + * For dual lane PHYs: tx2 -> 3, rx2 -> 4, pcs_misc (optional) -> 5 + * For single lane PHYs: pcs_misc (optional) -> 3. + */ + ret = ofnode_read_resource(child, 0, &res); + if (ret) { + dev_err(dev, "can't get reg property of child %s\n", + ofnode_get_name(child)); + return ret; + } + + qmp->tx = (void __iomem *)res.start; + + ret = ofnode_read_resource(child, 1, &res); + if (ret) { + dev_err(dev, "can't get reg property of child %s\n", + ofnode_get_name(child)); + return ret; + } + + qmp->rx = (void __iomem *)res.start; + + ret = ofnode_read_resource(child, 2, &res); + if (ret) { + dev_err(dev, "can't get reg property of child %s\n", + ofnode_get_name(child)); + return ret; + } + + qmp->pcs = (void __iomem *)res.start; + + if (cfg->lanes >= 2) { + ret = ofnode_read_resource(child, 3, &res); + if (ret) { + dev_err(dev, "can't get reg property of child %s\n", + ofnode_get_name(child)); + return ret; + } + + qmp->tx2 = (void __iomem *)res.start; + + ret = ofnode_read_resource(child, 4, &res); + if (ret) { + dev_err(dev, "can't get reg property of child %s\n", + ofnode_get_name(child)); + return ret; + } + + qmp->rx2 = (void __iomem *)res.start; + + ret = ofnode_read_resource(child, 5, &res); + if (ret) + qmp->pcs_misc = NULL; + } else { + ret = ofnode_read_resource(child, 3, &res); + if (ret) + qmp->pcs_misc = NULL; + } + + if (!qmp->pcs_misc) + dev_warn(qmp->dev, "PHY pcs_misc-reg not used\n"); + + return 0; +} + +static int qmp_ufs_probe_dt_children(struct udevice *dev) +{ + int ret; + ofnode child; + + ofnode_for_each_subnode(child, dev_ofnode(dev)) { + ret = qmp_ufs_probe_generic_child(dev, child); + if (ret) { + dev_err(dev, "Cannot parse child %s:%d\n", + ofnode_get_name(child), ret); + return ret; + } + } + + return 0; +} + +static int qmp_ufs_probe(struct udevice *dev) +{ + struct qmp_ufs_priv *qmp = dev_get_priv(dev); + int ret; + + qmp->serdes = (void __iomem *)dev_read_addr(dev); + if (IS_ERR(qmp->serdes)) + return PTR_ERR(qmp->serdes); + + qmp->cfg = (const struct qmp_ufs_cfg *)dev_get_driver_data(dev); + if (!qmp->cfg) + return -EINVAL; + + ret = qmp_ufs_clk_init(dev, qmp); + if (ret) { + printf("%s: failed to get UFS clks\n", __func__); + return ret; + } + + ret = qmp_ufs_vreg_init(dev, qmp); + if (ret) { + printf("%s: failed to get UFS voltage regulators\n", __func__); + return ret; + } + + if (qmp->cfg->no_pcs_sw_reset) { + ret = qmp_ufs_reset_init(dev, qmp); + if (ret) { + printf("%s: failed to get UFS resets\n", __func__); + return ret; + } + } + + qmp->dev = dev; + + ret = qmp_ufs_probe_dt_children(dev); + if (ret) { + printf("%s: failed to get UFS dt regs\n", __func__); + return ret; + } + + return 0; +} + +static struct phy_ops qmp_ufs_ops = { + .power_on = qmp_ufs_power_on, + .power_off = qmp_ufs_power_off, +}; + +static const struct udevice_id qmp_ufs_ids[] = { + { .compatible = "qcom,sdm845-qmp-ufs-phy", .data = (ulong)&sdm845_ufsphy_cfg }, + { .compatible = "qcom,sm6115-qmp-ufs-phy", .data = (ulong)&sm6115_ufsphy_cfg }, + { .compatible = "qcom,sm8250-qmp-ufs-phy", .data = (ulong)&sm8250_ufsphy_cfg }, + { } +}; + +U_BOOT_DRIVER(qcom_qmp_ufs) = { + .name = "qcom-qmp-ufs", + .id = UCLASS_PHY, + .of_match = qmp_ufs_ids, + .ops = &qmp_ufs_ops, + .probe = qmp_ufs_probe, + .priv_auto = sizeof(struct qmp_ufs_priv), +}; diff --git a/drivers/phy/qcom/phy-qcom-qmp.h b/drivers/phy/qcom/phy-qcom-qmp.h new file mode 100644 index 0000000000..99f4d447ca --- /dev/null +++ b/drivers/phy/qcom/phy-qcom-qmp.h @@ -0,0 +1,115 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2017, The Linux Foundation. All rights reserved. + */ + +#ifndef QCOM_PHY_QMP_H_ +#define QCOM_PHY_QMP_H_ + +#include "phy-qcom-qmp-qserdes-com.h" +#include "phy-qcom-qmp-qserdes-txrx.h" + +#include "phy-qcom-qmp-qserdes-com-v3.h" +#include "phy-qcom-qmp-qserdes-txrx-v3.h" + +#include "phy-qcom-qmp-qserdes-pll.h" + +#include "phy-qcom-qmp-pcs-v2.h" + +#include "phy-qcom-qmp-pcs-v3.h" + +/* Only for QMP V3 & V4 PHY - DP COM registers */ +#define QPHY_V3_DP_COM_PHY_MODE_CTRL 0x00 +#define QPHY_V3_DP_COM_SW_RESET 0x04 +#define QPHY_V3_DP_COM_POWER_DOWN_CTRL 0x08 +#define QPHY_V3_DP_COM_SWI_CTRL 0x0c +#define QPHY_V3_DP_COM_TYPEC_CTRL 0x10 +#define QPHY_V3_DP_COM_TYPEC_PWRDN_CTRL 0x14 +#define QPHY_V3_DP_COM_RESET_OVRD_CTRL 0x1c + +/* QSERDES V3 COM bits */ +# define QSERDES_V3_COM_BIAS_EN 0x0001 +# define QSERDES_V3_COM_BIAS_EN_MUX 0x0002 +# define QSERDES_V3_COM_CLKBUF_R_EN 0x0004 +# define QSERDES_V3_COM_CLKBUF_L_EN 0x0008 +# define QSERDES_V3_COM_EN_SYSCLK_TX_SEL 0x0010 +# define QSERDES_V3_COM_CLKBUF_RX_DRIVE_L 0x0020 +# define QSERDES_V3_COM_CLKBUF_RX_DRIVE_R 0x0040 + +/* QSERDES V3 TX bits */ +# define DP_PHY_TXn_TX_EMP_POST1_LVL_MASK 0x001f +# define DP_PHY_TXn_TX_EMP_POST1_LVL_MUX_EN 0x0020 +# define DP_PHY_TXn_TX_DRV_LVL_MASK 0x001f +# define DP_PHY_TXn_TX_DRV_LVL_MUX_EN 0x0020 + +/* QMP PHY - DP PHY registers */ +#define QSERDES_DP_PHY_REVISION_ID0 0x000 +#define QSERDES_DP_PHY_REVISION_ID1 0x004 +#define QSERDES_DP_PHY_REVISION_ID2 0x008 +#define QSERDES_DP_PHY_REVISION_ID3 0x00c +#define QSERDES_DP_PHY_CFG 0x010 +#define QSERDES_DP_PHY_PD_CTL 0x018 +# define DP_PHY_PD_CTL_PWRDN 0x001 +# define DP_PHY_PD_CTL_PSR_PWRDN 0x002 +# define DP_PHY_PD_CTL_AUX_PWRDN 0x004 +# define DP_PHY_PD_CTL_LANE_0_1_PWRDN 0x008 +# define DP_PHY_PD_CTL_LANE_2_3_PWRDN 0x010 +# define DP_PHY_PD_CTL_PLL_PWRDN 0x020 +# define DP_PHY_PD_CTL_DP_CLAMP_EN 0x040 +#define QSERDES_DP_PHY_MODE 0x01c +#define QSERDES_DP_PHY_AUX_CFG0 0x020 +#define QSERDES_DP_PHY_AUX_CFG1 0x024 +#define QSERDES_DP_PHY_AUX_CFG2 0x028 +#define QSERDES_DP_PHY_AUX_CFG3 0x02c +#define QSERDES_DP_PHY_AUX_CFG4 0x030 +#define QSERDES_DP_PHY_AUX_CFG5 0x034 +#define QSERDES_DP_PHY_AUX_CFG6 0x038 +#define QSERDES_DP_PHY_AUX_CFG7 0x03c +#define QSERDES_DP_PHY_AUX_CFG8 0x040 +#define QSERDES_DP_PHY_AUX_CFG9 0x044 + +/* Only for QMP V3 PHY - DP PHY registers */ +#define QSERDES_V3_DP_PHY_AUX_INTERRUPT_MASK 0x048 +# define PHY_AUX_STOP_ERR_MASK 0x01 +# define PHY_AUX_DEC_ERR_MASK 0x02 +# define PHY_AUX_SYNC_ERR_MASK 0x04 +# define PHY_AUX_ALIGN_ERR_MASK 0x08 +# define PHY_AUX_REQ_ERR_MASK 0x10 + +#define QSERDES_V3_DP_PHY_AUX_INTERRUPT_CLEAR 0x04c +#define QSERDES_V3_DP_PHY_AUX_BIST_CFG 0x050 + +#define QSERDES_V3_DP_PHY_VCO_DIV 0x064 +#define QSERDES_V3_DP_PHY_TX0_TX1_LANE_CTL 0x06c +#define QSERDES_V3_DP_PHY_TX2_TX3_LANE_CTL 0x088 + +#define QSERDES_V3_DP_PHY_SPARE0 0x0ac +#define DP_PHY_SPARE0_MASK 0x0f +#define DP_PHY_SPARE0_ORIENTATION_INFO_SHIFT 0x04(0x0004) + +#define QSERDES_V3_DP_PHY_STATUS 0x0c0 + +/* Only for QMP V4 PHY - DP PHY registers */ +#define QSERDES_V4_DP_PHY_CFG_1 0x014 +#define QSERDES_V4_DP_PHY_AUX_INTERRUPT_MASK 0x054 +#define QSERDES_V4_DP_PHY_AUX_INTERRUPT_CLEAR 0x058 +#define QSERDES_V4_DP_PHY_VCO_DIV 0x070 +#define QSERDES_V4_DP_PHY_TX0_TX1_LANE_CTL 0x078 +#define QSERDES_V4_DP_PHY_TX2_TX3_LANE_CTL 0x09c +#define QSERDES_V4_DP_PHY_SPARE0 0x0c8 +#define QSERDES_V4_DP_PHY_AUX_INTERRUPT_STATUS 0x0d8 +#define QSERDES_V4_DP_PHY_STATUS 0x0dc + +/* Only for QMP V4 PHY - PCS_MISC registers */ +#define QPHY_V4_PCS_MISC_TYPEC_CTRL 0x00 +#define QPHY_V4_PCS_MISC_TYPEC_PWRDN_CTRL 0x04 +#define QPHY_V4_PCS_MISC_PCS_MISC_CONFIG1 0x08 +#define QPHY_V4_PCS_MISC_CLAMP_ENABLE 0x0c +#define QPHY_V4_PCS_MISC_TYPEC_STATUS 0x10 +#define QPHY_V4_PCS_MISC_PLACEHOLDER_STATUS 0x14 + +/* Only for QMP V6 PHY - DP PHY registers */ +#define QSERDES_V6_DP_PHY_AUX_INTERRUPT_STATUS 0x0e0 +#define QSERDES_V6_DP_PHY_STATUS 0x0e4 + +#endif