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-rw-r--r--drivers/ufs/host/ufs-exynos.h270
1 files changed, 270 insertions, 0 deletions
diff --git a/drivers/ufs/host/ufs-exynos.h b/drivers/ufs/host/ufs-exynos.h
new file mode 100644
index 000000000..a4bd6646d
--- /dev/null
+++ b/drivers/ufs/host/ufs-exynos.h
@@ -0,0 +1,270 @@
+/* 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_AUTOMODE_THLD 0x9536
+#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_ */