| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * UFS Host Controller driver for Exynos specific extensions |
| * |
| * Copyright (C) 2014-2015 Samsung Electronics Co., Ltd. |
| * |
| */ |
| |
| #ifndef _UFS_EXYNOS_H_ |
| #define _UFS_EXYNOS_H_ |
| |
| /* |
| * UNIPRO registers |
| */ |
| #define UNIPRO_DBG_FORCE_DME_CTRL_STATE 0x150 |
| |
| /* |
| * MIBs for PA debug registers |
| */ |
| #define PA_DBG_CLK_PERIOD 0x9514 |
| #define PA_DBG_TXPHY_CFGUPDT 0x9518 |
| #define PA_DBG_RXPHY_CFGUPDT 0x9519 |
| #define PA_DBG_MODE 0x9529 |
| #define PA_DBG_SKIP_RESET_PHY 0x9539 |
| #define PA_DBG_OV_TM 0x9540 |
| #define PA_DBG_SKIP_LINE_RESET 0x9541 |
| #define PA_DBG_LINE_RESET_REQ 0x9543 |
| #define PA_DBG_OPTION_SUITE 0x9564 |
| #define PA_DBG_OPTION_SUITE_DYN 0x9565 |
| |
| /* |
| * MIBs for Transport Layer debug registers |
| */ |
| #define T_DBG_SKIP_INIT_HIBERN8_EXIT 0xc001 |
| |
| /* |
| * Exynos MPHY attributes |
| */ |
| #define TX_LINERESET_N_VAL 0x0277 |
| #define TX_LINERESET_N(v) (((v) >> 10) & 0xFF) |
| #define TX_LINERESET_P_VAL 0x027D |
| #define TX_LINERESET_P(v) (((v) >> 12) & 0xFF) |
| #define TX_OV_SLEEP_CNT_TIMER 0x028E |
| #define TX_OV_H8_ENTER_EN (1 << 7) |
| #define TX_OV_SLEEP_CNT(v) (((v) >> 5) & 0x7F) |
| #define TX_HIGH_Z_CNT_11_08 0x028C |
| #define TX_HIGH_Z_CNT_H(v) (((v) >> 8) & 0xF) |
| #define TX_HIGH_Z_CNT_07_00 0x028D |
| #define TX_HIGH_Z_CNT_L(v) ((v) & 0xFF) |
| #define TX_BASE_NVAL_07_00 0x0293 |
| #define TX_BASE_NVAL_L(v) ((v) & 0xFF) |
| #define TX_BASE_NVAL_15_08 0x0294 |
| #define TX_BASE_NVAL_H(v) (((v) >> 8) & 0xFF) |
| #define TX_GRAN_NVAL_07_00 0x0295 |
| #define TX_GRAN_NVAL_L(v) ((v) & 0xFF) |
| #define TX_GRAN_NVAL_10_08 0x0296 |
| #define TX_GRAN_NVAL_H(v) (((v) >> 8) & 0x3) |
| |
| #define RX_FILLER_ENABLE 0x0316 |
| #define RX_FILLER_EN (1 << 1) |
| #define RX_LINERESET_VAL 0x0317 |
| #define RX_LINERESET(v) (((v) >> 12) & 0xFF) |
| #define RX_LCC_IGNORE 0x0318 |
| #define RX_SYNC_MASK_LENGTH 0x0321 |
| #define RX_HIBERN8_WAIT_VAL_BIT_20_16 0x0331 |
| #define RX_HIBERN8_WAIT_VAL_BIT_15_08 0x0332 |
| #define RX_HIBERN8_WAIT_VAL_BIT_07_00 0x0333 |
| #define RX_OV_SLEEP_CNT_TIMER 0x0340 |
| #define RX_OV_SLEEP_CNT(v) (((v) >> 6) & 0x1F) |
| #define RX_OV_STALL_CNT_TIMER 0x0341 |
| #define RX_OV_STALL_CNT(v) (((v) >> 4) & 0xFF) |
| #define RX_BASE_NVAL_07_00 0x0355 |
| #define RX_BASE_NVAL_L(v) ((v) & 0xFF) |
| #define RX_BASE_NVAL_15_08 0x0354 |
| #define RX_BASE_NVAL_H(v) (((v) >> 8) & 0xFF) |
| #define RX_GRAN_NVAL_07_00 0x0353 |
| #define RX_GRAN_NVAL_L(v) ((v) & 0xFF) |
| #define RX_GRAN_NVAL_10_08 0x0352 |
| #define RX_GRAN_NVAL_H(v) (((v) >> 8) & 0x3) |
| |
| #define CMN_PWM_CLK_CTRL 0x0402 |
| #define PWM_CLK_CTRL_MASK 0x3 |
| |
| #define IATOVAL_NSEC 20000 /* unit: ns */ |
| #define UNIPRO_PCLK_PERIOD(ufs) (NSEC_PER_SEC / ufs->pclk_rate) |
| |
| struct exynos_ufs; |
| |
| /* vendor specific pre-defined parameters */ |
| #define SLOW 1 |
| #define FAST 2 |
| |
| #define RX_ADV_FINE_GRAN_SUP_EN 0x1 |
| #define RX_ADV_FINE_GRAN_STEP_VAL 0x3 |
| #define RX_ADV_MIN_ACTV_TIME_CAP 0x9 |
| |
| #define PA_GRANULARITY_VAL 0x6 |
| #define PA_TACTIVATE_VAL 0x3 |
| #define PA_HIBERN8TIME_VAL 0x20 |
| |
| #define PCLK_AVAIL_MIN 70000000 |
| #define PCLK_AVAIL_MAX 133000000 |
| |
| struct exynos_ufs_uic_attr { |
| /* TX Attributes */ |
| unsigned int tx_trailingclks; |
| unsigned int tx_dif_p_nsec; |
| unsigned int tx_dif_n_nsec; |
| unsigned int tx_high_z_cnt_nsec; |
| unsigned int tx_base_unit_nsec; |
| unsigned int tx_gran_unit_nsec; |
| unsigned int tx_sleep_cnt; |
| unsigned int tx_min_activatetime; |
| /* RX Attributes */ |
| unsigned int rx_filler_enable; |
| unsigned int rx_dif_p_nsec; |
| unsigned int rx_hibern8_wait_nsec; |
| unsigned int rx_base_unit_nsec; |
| unsigned int rx_gran_unit_nsec; |
| unsigned int rx_sleep_cnt; |
| unsigned int rx_stall_cnt; |
| unsigned int rx_hs_g1_sync_len_cap; |
| unsigned int rx_hs_g2_sync_len_cap; |
| unsigned int rx_hs_g3_sync_len_cap; |
| unsigned int rx_hs_g1_prep_sync_len_cap; |
| unsigned int rx_hs_g2_prep_sync_len_cap; |
| unsigned int rx_hs_g3_prep_sync_len_cap; |
| /* Common Attributes */ |
| unsigned int cmn_pwm_clk_ctrl; |
| /* Internal Attributes */ |
| unsigned int pa_dbg_option_suite; |
| /* Changeable Attributes */ |
| unsigned int rx_adv_fine_gran_sup_en; |
| unsigned int rx_adv_fine_gran_step; |
| unsigned int rx_min_actv_time_cap; |
| unsigned int rx_hibern8_time_cap; |
| unsigned int rx_adv_min_actv_time_cap; |
| unsigned int rx_adv_hibern8_time_cap; |
| unsigned int pa_granularity; |
| unsigned int pa_tactivate; |
| unsigned int pa_hibern8time; |
| }; |
| |
| struct exynos_ufs_drv_data { |
| char *compatible; |
| struct exynos_ufs_uic_attr *uic_attr; |
| unsigned int quirks; |
| unsigned int opts; |
| /* SoC's specific operations */ |
| int (*drv_init)(struct device *dev, struct exynos_ufs *ufs); |
| int (*pre_link)(struct exynos_ufs *ufs); |
| int (*post_link)(struct exynos_ufs *ufs); |
| int (*pre_pwr_change)(struct exynos_ufs *ufs, |
| struct ufs_pa_layer_attr *pwr); |
| int (*post_pwr_change)(struct exynos_ufs *ufs, |
| struct ufs_pa_layer_attr *pwr); |
| }; |
| |
| struct ufs_phy_time_cfg { |
| u32 tx_linereset_p; |
| u32 tx_linereset_n; |
| u32 tx_high_z_cnt; |
| u32 tx_base_n_val; |
| u32 tx_gran_n_val; |
| u32 tx_sleep_cnt; |
| u32 rx_linereset; |
| u32 rx_hibern8_wait; |
| u32 rx_base_n_val; |
| u32 rx_gran_n_val; |
| u32 rx_sleep_cnt; |
| u32 rx_stall_cnt; |
| }; |
| |
| struct exynos_ufs { |
| struct ufs_hba *hba; |
| struct phy *phy; |
| void __iomem *reg_hci; |
| void __iomem *reg_unipro; |
| void __iomem *reg_ufsp; |
| struct clk *clk_hci_core; |
| struct clk *clk_unipro_main; |
| struct clk *clk_apb; |
| u32 pclk_rate; |
| u32 pclk_div; |
| u32 pclk_avail_min; |
| u32 pclk_avail_max; |
| u32 mclk_rate; |
| int avail_ln_rx; |
| int avail_ln_tx; |
| int rx_sel_idx; |
| struct ufs_pa_layer_attr dev_req_params; |
| struct ufs_phy_time_cfg t_cfg; |
| ktime_t entry_hibern8_t; |
| struct exynos_ufs_drv_data *drv_data; |
| |
| u32 opts; |
| #define EXYNOS_UFS_OPT_HAS_APB_CLK_CTRL BIT(0) |
| #define EXYNOS_UFS_OPT_SKIP_CONNECTION_ESTAB BIT(1) |
| #define EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL BIT(2) |
| #define EXYNOS_UFS_OPT_BROKEN_RX_SEL_IDX BIT(3) |
| #define EXYNOS_UFS_OPT_USE_SW_HIBERN8_TIMER BIT(4) |
| }; |
| |
| #define for_each_ufs_rx_lane(ufs, i) \ |
| for (i = (ufs)->rx_sel_idx; \ |
| i < (ufs)->rx_sel_idx + (ufs)->avail_ln_rx; i++) |
| #define for_each_ufs_tx_lane(ufs, i) \ |
| for (i = 0; i < (ufs)->avail_ln_tx; i++) |
| |
| #define EXYNOS_UFS_MMIO_FUNC(name) \ |
| static inline void name##_writel(struct exynos_ufs *ufs, u32 val, u32 reg)\ |
| { \ |
| writel(val, ufs->reg_##name + reg); \ |
| } \ |
| \ |
| static inline u32 name##_readl(struct exynos_ufs *ufs, u32 reg) \ |
| { \ |
| return readl(ufs->reg_##name + reg); \ |
| } |
| |
| EXYNOS_UFS_MMIO_FUNC(hci); |
| EXYNOS_UFS_MMIO_FUNC(unipro); |
| EXYNOS_UFS_MMIO_FUNC(ufsp); |
| #undef EXYNOS_UFS_MMIO_FUNC |
| |
| long exynos_ufs_calc_time_cntr(struct exynos_ufs *, long); |
| |
| static inline void exynos_ufs_enable_ov_tm(struct ufs_hba *hba) |
| { |
| ufshcd_dme_set(hba, UIC_ARG_MIB(PA_DBG_OV_TM), TRUE); |
| } |
| |
| static inline void exynos_ufs_disable_ov_tm(struct ufs_hba *hba) |
| { |
| ufshcd_dme_set(hba, UIC_ARG_MIB(PA_DBG_OV_TM), FALSE); |
| } |
| |
| static inline void exynos_ufs_enable_dbg_mode(struct ufs_hba *hba) |
| { |
| ufshcd_dme_set(hba, UIC_ARG_MIB(PA_DBG_MODE), TRUE); |
| } |
| |
| static inline void exynos_ufs_disable_dbg_mode(struct ufs_hba *hba) |
| { |
| ufshcd_dme_set(hba, UIC_ARG_MIB(PA_DBG_MODE), FALSE); |
| } |
| |
| #endif /* _UFS_EXYNOS_H_ */ |
