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