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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 | /* SPDX-License-Identifier: GPL-2.0-only */ /* Copyright (c) 2015, The Linux Foundation. All rights reserved. */ #ifndef LINUX_MMC_CQHCI_H #define LINUX_MMC_CQHCI_H #include <linux/compiler.h> #include <linux/bitops.h> #include <linux/spinlock_types.h> #include <linux/types.h> #include <linux/completion.h> #include <linux/wait.h> #include <linux/irqreturn.h> #include <asm/io.h> /* registers */ /* version */ #define CQHCI_VER 0x00 #define CQHCI_VER_MAJOR(x) (((x) & GENMASK(11, 8)) >> 8) #define CQHCI_VER_MINOR1(x) (((x) & GENMASK(7, 4)) >> 4) #define CQHCI_VER_MINOR2(x) ((x) & GENMASK(3, 0)) /* capabilities */ #define CQHCI_CAP 0x04 #define CQHCI_CAP_CS 0x10000000 /* Crypto Support */ /* configuration */ #define CQHCI_CFG 0x08 #define CQHCI_DCMD 0x00001000 #define CQHCI_TASK_DESC_SZ 0x00000100 #define CQHCI_CRYPTO_GENERAL_ENABLE 0x00000002 #define CQHCI_ENABLE 0x00000001 /* control */ #define CQHCI_CTL 0x0C #define CQHCI_CLEAR_ALL_TASKS 0x00000100 #define CQHCI_HALT 0x00000001 /* interrupt status */ #define CQHCI_IS 0x10 #define CQHCI_IS_HAC BIT(0) #define CQHCI_IS_TCC BIT(1) #define CQHCI_IS_RED BIT(2) #define CQHCI_IS_TCL BIT(3) #define CQHCI_IS_GCE BIT(4) /* General Crypto Error */ #define CQHCI_IS_ICCE BIT(5) /* Invalid Crypto Config Error */ #define CQHCI_IS_MASK (CQHCI_IS_TCC | CQHCI_IS_RED | \ CQHCI_IS_GCE | CQHCI_IS_ICCE) /* interrupt status enable */ #define CQHCI_ISTE 0x14 /* interrupt signal enable */ #define CQHCI_ISGE 0x18 /* interrupt coalescing */ #define CQHCI_IC 0x1C #define CQHCI_IC_ENABLE BIT(31) #define CQHCI_IC_RESET BIT(16) #define CQHCI_IC_ICCTHWEN BIT(15) #define CQHCI_IC_ICCTH(x) (((x) & 0x1F) << 8) #define CQHCI_IC_ICTOVALWEN BIT(7) #define CQHCI_IC_ICTOVAL(x) ((x) & 0x7F) /* task list base address */ #define CQHCI_TDLBA 0x20 /* task list base address upper */ #define CQHCI_TDLBAU 0x24 /* door-bell */ #define CQHCI_TDBR 0x28 /* task completion notification */ #define CQHCI_TCN 0x2C /* device queue status */ #define CQHCI_DQS 0x30 /* device pending tasks */ #define CQHCI_DPT 0x34 /* task clear */ #define CQHCI_TCLR 0x38 /* task descriptor processing error */ #define CQHCI_TDPE 0x3c /* send status config 1 */ #define CQHCI_SSC1 0x40 #define CQHCI_SSC1_CBC_MASK GENMASK(19, 16) /* send status config 2 */ #define CQHCI_SSC2 0x44 /* response for dcmd */ #define CQHCI_CRDCT 0x48 /* response mode error mask */ #define CQHCI_RMEM 0x50 /* task error info */ #define CQHCI_TERRI 0x54 #define CQHCI_TERRI_C_INDEX(x) ((x) & GENMASK(5, 0)) #define CQHCI_TERRI_C_TASK(x) (((x) & GENMASK(12, 8)) >> 8) #define CQHCI_TERRI_C_VALID(x) ((x) & BIT(15)) #define CQHCI_TERRI_D_INDEX(x) (((x) & GENMASK(21, 16)) >> 16) #define CQHCI_TERRI_D_TASK(x) (((x) & GENMASK(28, 24)) >> 24) #define CQHCI_TERRI_D_VALID(x) ((x) & BIT(31)) /* command response index */ #define CQHCI_CRI 0x58 /* command response argument */ #define CQHCI_CRA 0x5C /* crypto capabilities */ #define CQHCI_CCAP 0x100 #define CQHCI_CRYPTOCAP 0x104 #define CQHCI_INT_ALL 0xF #define CQHCI_IC_DEFAULT_ICCTH 31 #define CQHCI_IC_DEFAULT_ICTOVAL 1 /* attribute fields */ #define CQHCI_VALID(x) (((x) & 1) << 0) #define CQHCI_END(x) (((x) & 1) << 1) #define CQHCI_INT(x) (((x) & 1) << 2) #define CQHCI_ACT(x) (((x) & 0x7) << 3) /* data command task descriptor fields */ #define CQHCI_FORCED_PROG(x) (((x) & 1) << 6) #define CQHCI_CONTEXT(x) (((x) & 0xF) << 7) #define CQHCI_DATA_TAG(x) (((x) & 1) << 11) #define CQHCI_DATA_DIR(x) (((x) & 1) << 12) #define CQHCI_PRIORITY(x) (((x) & 1) << 13) #define CQHCI_QBAR(x) (((x) & 1) << 14) #define CQHCI_REL_WRITE(x) (((x) & 1) << 15) #define CQHCI_BLK_COUNT(x) (((x) & 0xFFFF) << 16) #define CQHCI_BLK_ADDR(x) (((x) & 0xFFFFFFFF) << 32) /* direct command task descriptor fields */ #define CQHCI_CMD_INDEX(x) (((x) & 0x3F) << 16) #define CQHCI_CMD_TIMING(x) (((x) & 1) << 22) #define CQHCI_RESP_TYPE(x) (((x) & 0x3) << 23) /* crypto task descriptor fields (for bits 64-127 of task descriptor) */ #define CQHCI_CRYPTO_ENABLE_BIT (1ULL << 47) #define CQHCI_CRYPTO_KEYSLOT(x) ((u64)(x) << 32) /* transfer descriptor fields */ #define CQHCI_DAT_LENGTH(x) (((x) & 0xFFFF) << 16) #define CQHCI_DAT_ADDR_LO(x) (((x) & 0xFFFFFFFF) << 32) #define CQHCI_DAT_ADDR_HI(x) (((x) & 0xFFFFFFFF) << 0) /* CCAP - Crypto Capability 100h */ union cqhci_crypto_capabilities { __le32 reg_val; struct { u8 num_crypto_cap; u8 config_count; u8 reserved; u8 config_array_ptr; }; }; enum cqhci_crypto_key_size { CQHCI_CRYPTO_KEY_SIZE_INVALID = 0, CQHCI_CRYPTO_KEY_SIZE_128 = 1, CQHCI_CRYPTO_KEY_SIZE_192 = 2, CQHCI_CRYPTO_KEY_SIZE_256 = 3, CQHCI_CRYPTO_KEY_SIZE_512 = 4, }; enum cqhci_crypto_alg { CQHCI_CRYPTO_ALG_AES_XTS = 0, CQHCI_CRYPTO_ALG_BITLOCKER_AES_CBC = 1, CQHCI_CRYPTO_ALG_AES_ECB = 2, CQHCI_CRYPTO_ALG_ESSIV_AES_CBC = 3, }; /* x-CRYPTOCAP - Crypto Capability X */ union cqhci_crypto_cap_entry { __le32 reg_val; struct { u8 algorithm_id; u8 sdus_mask; /* Supported data unit size mask */ u8 key_size; u8 reserved; }; }; #define CQHCI_CRYPTO_CONFIGURATION_ENABLE (1 << 7) #define CQHCI_CRYPTO_KEY_MAX_SIZE 64 /* x-CRYPTOCFG - Crypto Configuration X */ union cqhci_crypto_cfg_entry { __le32 reg_val[32]; struct { u8 crypto_key[CQHCI_CRYPTO_KEY_MAX_SIZE]; u8 data_unit_size; u8 crypto_cap_idx; u8 reserved_1; u8 config_enable; u8 reserved_multi_host; u8 reserved_2; u8 vsb[2]; u8 reserved_3[56]; }; }; struct cqhci_host_ops; struct mmc_host; struct mmc_request; struct cqhci_slot; struct cqhci_host { const struct cqhci_host_ops *ops; void __iomem *mmio; struct mmc_host *mmc; spinlock_t lock; /* relative card address of device */ unsigned int rca; /* 64 bit DMA */ bool dma64; int num_slots; int qcnt; u32 dcmd_slot; u32 caps; #define CQHCI_TASK_DESC_SZ_128 0x1 u32 quirks; #define CQHCI_QUIRK_SHORT_TXFR_DESC_SZ 0x1 bool enabled; bool halted; bool init_done; bool activated; bool waiting_for_idle; bool recovery_halt; size_t desc_size; size_t data_size; u8 *desc_base; /* total descriptor size */ u8 slot_sz; /* 64/128 bit depends on CQHCI_CFG */ u8 task_desc_len; /* 64 bit on 32-bit arch, 128 bit on 64-bit */ u8 link_desc_len; u8 *trans_desc_base; /* same length as transfer descriptor */ u8 trans_desc_len; dma_addr_t desc_dma_base; dma_addr_t trans_desc_dma_base; struct completion halt_comp; wait_queue_head_t wait_queue; struct cqhci_slot *slot; #ifdef CONFIG_MMC_CRYPTO union cqhci_crypto_capabilities crypto_capabilities; union cqhci_crypto_cap_entry *crypto_cap_array; u32 crypto_cfg_register; #endif }; struct cqhci_host_ops { void (*dumpregs)(struct mmc_host *mmc); void (*write_l)(struct cqhci_host *host, u32 val, int reg); u32 (*read_l)(struct cqhci_host *host, int reg); void (*enable)(struct mmc_host *mmc); void (*disable)(struct mmc_host *mmc, bool recovery); void (*update_dcmd_desc)(struct mmc_host *mmc, struct mmc_request *mrq, u64 *data); void (*pre_enable)(struct mmc_host *mmc); void (*post_disable)(struct mmc_host *mmc); #ifdef CONFIG_MMC_CRYPTO int (*program_key)(struct cqhci_host *cq_host, const union cqhci_crypto_cfg_entry *cfg, int slot); #endif }; static inline void cqhci_writel(struct cqhci_host *host, u32 val, int reg) { if (unlikely(host->ops->write_l)) host->ops->write_l(host, val, reg); else writel_relaxed(val, host->mmio + reg); } static inline u32 cqhci_readl(struct cqhci_host *host, int reg) { if (unlikely(host->ops->read_l)) return host->ops->read_l(host, reg); else return readl_relaxed(host->mmio + reg); } struct platform_device; irqreturn_t cqhci_irq(struct mmc_host *mmc, u32 intmask, int cmd_error, int data_error); int cqhci_init(struct cqhci_host *cq_host, struct mmc_host *mmc, bool dma64); struct cqhci_host *cqhci_pltfm_init(struct platform_device *pdev); int cqhci_deactivate(struct mmc_host *mmc); static inline int cqhci_suspend(struct mmc_host *mmc) { return cqhci_deactivate(mmc); } int cqhci_resume(struct mmc_host *mmc); #endif |