1 /* SPDX-License-Identifier: GPL-2.0 */ 2 /* 3 * Copyright (C) 2019 MediaTek Inc. 4 */ 5 6 #ifndef _UFS_MEDIATEK_H 7 #define _UFS_MEDIATEK_H 8 9 #include <linux/bitops.h> 10 #include <linux/soc/mediatek/mtk_sip_svc.h> 11 12 /* 13 * MCQ define and struct 14 */ 15 #define UFSHCD_MAX_Q_NR 8 16 #define MTK_MCQ_INVALID_IRQ 0xFFFF 17 18 /* REG_UFS_MMIO_OPT_CTRL_0 160h */ 19 #define EHS_EN BIT(0) 20 #define PFM_IMPV BIT(1) 21 #define MCQ_MULTI_INTR_EN BIT(2) 22 #define MCQ_CMB_INTR_EN BIT(3) 23 #define MCQ_AH8 BIT(4) 24 25 #define MCQ_INTR_EN_MSK (MCQ_MULTI_INTR_EN | MCQ_CMB_INTR_EN) 26 27 /* 28 * Vendor specific UFSHCI Registers 29 */ 30 #define REG_UFS_XOUFS_CTRL 0x140 31 #define REG_UFS_REFCLK_CTRL 0x144 32 #define REG_UFS_MMIO_OPT_CTRL_0 0x160 33 #define REG_UFS_EXTREG 0x2100 34 #define REG_UFS_MPHYCTRL 0x2200 35 #define REG_UFS_MTK_IP_VER 0x2240 36 #define REG_UFS_REJECT_MON 0x22AC 37 #define REG_UFS_DEBUG_SEL 0x22C0 38 #define REG_UFS_PROBE 0x22C8 39 #define REG_UFS_DEBUG_SEL_B0 0x22D0 40 #define REG_UFS_DEBUG_SEL_B1 0x22D4 41 #define REG_UFS_DEBUG_SEL_B2 0x22D8 42 #define REG_UFS_DEBUG_SEL_B3 0x22DC 43 44 #define REG_UFS_MTK_SQD 0x2800 45 #define REG_UFS_MTK_SQIS 0x2814 46 #define REG_UFS_MTK_CQD 0x281C 47 #define REG_UFS_MTK_CQIS 0x2824 48 49 #define REG_UFS_MCQ_STRIDE 0x30 50 51 /* 52 * Ref-clk control 53 * 54 * Values for register REG_UFS_REFCLK_CTRL 55 */ 56 #define REFCLK_RELEASE 0x0 57 #define REFCLK_REQUEST BIT(0) 58 #define REFCLK_ACK BIT(1) 59 60 #define REFCLK_REQ_TIMEOUT_US 3000 61 #define REFCLK_DEFAULT_WAIT_US 32 62 63 /* 64 * Other attributes 65 */ 66 #define VS_DEBUGCLOCKENABLE 0xD0A1 67 #define VS_SAVEPOWERCONTROL 0xD0A6 68 #define VS_UNIPROPOWERDOWNCONTROL 0xD0A8 69 70 /* 71 * Vendor specific link state 72 */ 73 enum { 74 VS_LINK_DISABLED = 0, 75 VS_LINK_DOWN = 1, 76 VS_LINK_UP = 2, 77 VS_LINK_HIBERN8 = 3, 78 VS_LINK_LOST = 4, 79 VS_LINK_CFG = 5, 80 }; 81 82 /* 83 * Vendor specific host controller state 84 */ 85 enum { 86 VS_HCE_RESET = 0, 87 VS_HCE_BASE = 1, 88 VS_HCE_OOCPR_WAIT = 2, 89 VS_HCE_DME_RESET = 3, 90 VS_HCE_MIDDLE = 4, 91 VS_HCE_DME_ENABLE = 5, 92 VS_HCE_DEFAULTS = 6, 93 VS_HIB_IDLEEN = 7, 94 VS_HIB_ENTER = 8, 95 VS_HIB_ENTER_CONF = 9, 96 VS_HIB_MIDDLE = 10, 97 VS_HIB_WAITTIMER = 11, 98 VS_HIB_EXIT_CONF = 12, 99 VS_HIB_EXIT = 13, 100 }; 101 102 /* 103 * SiP commands 104 */ 105 #define MTK_SIP_UFS_CONTROL MTK_SIP_SMC_CMD(0x276) 106 #define UFS_MTK_SIP_VA09_PWR_CTRL BIT(0) 107 #define UFS_MTK_SIP_DEVICE_RESET BIT(1) 108 #define UFS_MTK_SIP_CRYPTO_CTRL BIT(2) 109 #define UFS_MTK_SIP_REF_CLK_NOTIFICATION BIT(3) 110 #define UFS_MTK_SIP_HOST_PWR_CTRL BIT(5) 111 #define UFS_MTK_SIP_GET_VCC_NUM BIT(6) 112 #define UFS_MTK_SIP_DEVICE_PWR_CTRL BIT(7) 113 114 /* 115 * VS_DEBUGCLOCKENABLE 116 */ 117 enum { 118 TX_SYMBOL_CLK_REQ_FORCE = 5, 119 }; 120 121 /* 122 * VS_SAVEPOWERCONTROL 123 */ 124 enum { 125 RX_SYMBOL_CLK_GATE_EN = 0, 126 SYS_CLK_GATE_EN = 2, 127 TX_CLK_GATE_EN = 3, 128 }; 129 130 /* 131 * Host capability 132 */ 133 enum ufs_mtk_host_caps { 134 UFS_MTK_CAP_BOOST_CRYPT_ENGINE = 1 << 0, 135 UFS_MTK_CAP_VA09_PWR_CTRL = 1 << 1, 136 UFS_MTK_CAP_DISABLE_AH8 = 1 << 2, 137 UFS_MTK_CAP_BROKEN_VCC = 1 << 3, 138 UFS_MTK_CAP_PMC_VIA_FASTAUTO = 1 << 6, 139 }; 140 141 struct ufs_mtk_crypt_cfg { 142 struct regulator *reg_vcore; 143 struct clk *clk_crypt_perf; 144 struct clk *clk_crypt_mux; 145 struct clk *clk_crypt_lp; 146 int vcore_volt; 147 }; 148 149 struct ufs_mtk_clk { 150 struct ufs_clk_info *ufs_sel_clki; /* Mux */ 151 struct ufs_clk_info *ufs_sel_max_clki; /* Max src */ 152 struct ufs_clk_info *ufs_sel_min_clki; /* Min src */ 153 }; 154 155 struct ufs_mtk_hw_ver { 156 u8 step; 157 u8 minor; 158 u8 major; 159 }; 160 161 struct ufs_mtk_mcq_intr_info { 162 struct ufs_hba *hba; 163 u32 irq; 164 u8 qid; 165 }; 166 167 struct ufs_mtk_host { 168 struct phy *mphy; 169 struct regulator *reg_va09; 170 struct reset_control *hci_reset; 171 struct reset_control *unipro_reset; 172 struct reset_control *crypto_reset; 173 struct ufs_hba *hba; 174 struct ufs_mtk_crypt_cfg *crypt; 175 struct ufs_mtk_clk mclk; 176 struct ufs_mtk_hw_ver hw_ver; 177 enum ufs_mtk_host_caps caps; 178 bool mphy_powered_on; 179 bool unipro_lpm; 180 bool ref_clk_enabled; 181 u16 ref_clk_ungating_wait_us; 182 u16 ref_clk_gating_wait_us; 183 u32 ip_ver; 184 185 bool mcq_set_intr; 186 bool is_mcq_intr_enabled; 187 int mcq_nr_intr; 188 struct ufs_mtk_mcq_intr_info mcq_intr_info[UFSHCD_MAX_Q_NR]; 189 }; 190 191 /* MTK delay of autosuspend: 500 ms */ 192 #define MTK_RPM_AUTOSUSPEND_DELAY_MS 500 193 194 /* 195 * Multi-VCC by Numbering 196 */ 197 enum ufs_mtk_vcc_num { 198 UFS_VCC_NONE = 0, 199 UFS_VCC_1, 200 UFS_VCC_2, 201 UFS_VCC_MAX 202 }; 203 204 /* 205 * Host Power Control options 206 */ 207 enum { 208 HOST_PWR_HCI = 0, 209 HOST_PWR_MPHY 210 }; 211 212 /* 213 * SMC call wrapper function 214 */ 215 struct ufs_mtk_smc_arg { 216 unsigned long cmd; 217 struct arm_smccc_res *res; 218 unsigned long v1; 219 unsigned long v2; 220 unsigned long v3; 221 unsigned long v4; 222 unsigned long v5; 223 unsigned long v6; 224 unsigned long v7; 225 }; 226 227 static void _ufs_mtk_smc(struct ufs_mtk_smc_arg s) 228 { 229 arm_smccc_smc(MTK_SIP_UFS_CONTROL, 230 s.cmd, s.v1, s.v2, s.v3, s.v4, s.v5, s.v6, s.res); 231 } 232 233 #define ufs_mtk_smc(...) \ 234 _ufs_mtk_smc((struct ufs_mtk_smc_arg) {__VA_ARGS__}) 235 236 /* 237 * SMC call interface 238 */ 239 #define ufs_mtk_va09_pwr_ctrl(res, on) \ 240 ufs_mtk_smc(UFS_MTK_SIP_VA09_PWR_CTRL, &(res), on) 241 242 #define ufs_mtk_crypto_ctrl(res, enable) \ 243 ufs_mtk_smc(UFS_MTK_SIP_CRYPTO_CTRL, &(res), enable) 244 245 #define ufs_mtk_ref_clk_notify(on, stage, res) \ 246 ufs_mtk_smc(UFS_MTK_SIP_REF_CLK_NOTIFICATION, &(res), on, stage) 247 248 #define ufs_mtk_device_reset_ctrl(high, res) \ 249 ufs_mtk_smc(UFS_MTK_SIP_DEVICE_RESET, &(res), high) 250 251 #define ufs_mtk_host_pwr_ctrl(opt, on, res) \ 252 ufs_mtk_smc(UFS_MTK_SIP_HOST_PWR_CTRL, &(res), opt, on) 253 254 #define ufs_mtk_get_vcc_num(res) \ 255 ufs_mtk_smc(UFS_MTK_SIP_GET_VCC_NUM, &(res)) 256 257 #define ufs_mtk_device_pwr_ctrl(on, ufs_ver, res) \ 258 ufs_mtk_smc(UFS_MTK_SIP_DEVICE_PWR_CTRL, &(res), on, ufs_ver) 259 260 #endif /* !_UFS_MEDIATEK_H */ 261