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/* 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 VND_TX_CLK_PRD 0xAA
#define VND_TX_CLK_PRD_EN 0xA9
#define VND_TX_LINERESET_PVALUE0 0xAD
#define VND_TX_LINERESET_PVALUE1 0xAC
#define VND_TX_LINERESET_PVALUE2 0xAB
#define TX_LINE_RESET_TIME 3200
#define VND_RX_CLK_PRD 0x12
#define VND_RX_CLK_PRD_EN 0x11
#define VND_RX_LINERESET_VALUE0 0x1D
#define VND_RX_LINERESET_VALUE1 0x1C
#define VND_RX_LINERESET_VALUE2 0x1B
#define RX_LINE_RESET_TIME 1000
#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 167000000
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 {
const struct ufs_hba_variant_ops *vops;
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);
int (*pre_hce_enable)(struct exynos_ufs *ufs);
int (*post_hce_enable)(struct exynos_ufs *ufs);
};
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;
unsigned long 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;
const struct exynos_ufs_drv_data *drv_data;
struct regmap *sysreg;
u32 shareability_reg_offset;
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 EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR BIT(5)
};
#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_ */
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