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/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Universal Flash Storage Host controller driver * Copyright (C) 2011-2013 Samsung India Software Operations * * Authors: * Santosh Yaraganavi <santosh.sy@samsung.com> * Vinayak Holikatti <h.vinayak@samsung.com> */ #ifndef _UFSHCI_H #define _UFSHCI_H #include <linux/types.h> #include <ufs/ufs.h> enum { TASK_REQ_UPIU_SIZE_DWORDS = 8, TASK_RSP_UPIU_SIZE_DWORDS = 8, ALIGNED_UPIU_SIZE = 512, }; /* UFSHCI Registers */ enum { REG_CONTROLLER_CAPABILITIES = 0x00, REG_MCQCAP = 0x04, REG_UFS_VERSION = 0x08, REG_EXT_CONTROLLER_CAPABILITIES = 0x0C, REG_CONTROLLER_PID = 0x10, REG_CONTROLLER_MID = 0x14, REG_AUTO_HIBERNATE_IDLE_TIMER = 0x18, REG_INTERRUPT_STATUS = 0x20, REG_INTERRUPT_ENABLE = 0x24, REG_CONTROLLER_STATUS = 0x30, REG_CONTROLLER_ENABLE = 0x34, REG_UIC_ERROR_CODE_PHY_ADAPTER_LAYER = 0x38, REG_UIC_ERROR_CODE_DATA_LINK_LAYER = 0x3C, REG_UIC_ERROR_CODE_NETWORK_LAYER = 0x40, REG_UIC_ERROR_CODE_TRANSPORT_LAYER = 0x44, REG_UIC_ERROR_CODE_DME = 0x48, REG_UTP_TRANSFER_REQ_INT_AGG_CONTROL = 0x4C, REG_UTP_TRANSFER_REQ_LIST_BASE_L = 0x50, REG_UTP_TRANSFER_REQ_LIST_BASE_H = 0x54, REG_UTP_TRANSFER_REQ_DOOR_BELL = 0x58, REG_UTP_TRANSFER_REQ_LIST_CLEAR = 0x5C, REG_UTP_TRANSFER_REQ_LIST_RUN_STOP = 0x60, REG_UTP_TASK_REQ_LIST_BASE_L = 0x70, REG_UTP_TASK_REQ_LIST_BASE_H = 0x74, REG_UTP_TASK_REQ_DOOR_BELL = 0x78, REG_UTP_TASK_REQ_LIST_CLEAR = 0x7C, REG_UTP_TASK_REQ_LIST_RUN_STOP = 0x80, REG_UIC_COMMAND = 0x90, REG_UIC_COMMAND_ARG_1 = 0x94, REG_UIC_COMMAND_ARG_2 = 0x98, REG_UIC_COMMAND_ARG_3 = 0x9C, UFSHCI_REG_SPACE_SIZE = 0xA0, REG_UFS_CCAP = 0x100, REG_UFS_CRYPTOCAP = 0x104, REG_UFS_MEM_CFG = 0x300, REG_UFS_MCQ_CFG = 0x380, REG_UFS_ESILBA = 0x384, REG_UFS_ESIUBA = 0x388, UFSHCI_CRYPTO_REG_SPACE_SIZE = 0x400, }; /* Controller capability masks */ enum { MASK_TRANSFER_REQUESTS_SLOTS_SDB = 0x0000001F, MASK_TRANSFER_REQUESTS_SLOTS_MCQ = 0x000000FF, MASK_NUMBER_OUTSTANDING_RTT = 0x0000FF00, MASK_TASK_MANAGEMENT_REQUEST_SLOTS = 0x00070000, MASK_EHSLUTRD_SUPPORTED = 0x00400000, MASK_AUTO_HIBERN8_SUPPORT = 0x00800000, MASK_64_ADDRESSING_SUPPORT = 0x01000000, MASK_OUT_OF_ORDER_DATA_DELIVERY_SUPPORT = 0x02000000, MASK_UIC_DME_TEST_MODE_SUPPORT = 0x04000000, MASK_CRYPTO_SUPPORT = 0x10000000, MASK_LSDB_SUPPORT = 0x20000000, MASK_MCQ_SUPPORT = 0x40000000, }; enum { REG_SQATTR = 0x0, REG_SQLBA = 0x4, REG_SQUBA = 0x8, REG_SQDAO = 0xC, REG_SQISAO = 0x10, REG_CQATTR = 0x20, REG_CQLBA = 0x24, REG_CQUBA = 0x28, REG_CQDAO = 0x2C, REG_CQISAO = 0x30, }; enum { REG_SQHP = 0x0, REG_SQTP = 0x4, REG_SQRTC = 0x8, REG_SQCTI = 0xC, REG_SQRTS = 0x10, }; enum { REG_CQHP = 0x0, REG_CQTP = 0x4, }; enum { REG_CQIS = 0x0, REG_CQIE = 0x4, }; enum { SQ_START = 0x0, SQ_STOP = 0x1, SQ_ICU = 0x2, }; enum { SQ_STS = 0x1, SQ_CUS = 0x2, }; #define SQ_ICU_ERR_CODE_MASK GENMASK(7, 4) #define UFS_MASK(mask, offset) ((mask) << (offset)) /* UFS Version 08h */ #define MINOR_VERSION_NUM_MASK UFS_MASK(0xFFFF, 0) #define MAJOR_VERSION_NUM_MASK UFS_MASK(0xFFFF, 16) #define UFSHCD_NUM_RESERVED 1 /* * Controller UFSHCI version * - 2.x and newer use the following scheme: * major << 8 + minor << 4 * - 1.x has been converted to match this in * ufshcd_get_ufs_version() */ static inline u32 ufshci_version(u32 major, u32 minor) { return (major << 8) + (minor << 4); } /* * HCDDID - Host Controller Identification Descriptor * - Device ID and Device Class 10h */ #define DEVICE_CLASS UFS_MASK(0xFFFF, 0) #define DEVICE_ID UFS_MASK(0xFF, 24) /* * HCPMID - Host Controller Identification Descriptor * - Product/Manufacturer ID 14h */ #define MANUFACTURE_ID_MASK UFS_MASK(0xFFFF, 0) #define PRODUCT_ID_MASK UFS_MASK(0xFFFF, 16) /* AHIT - Auto-Hibernate Idle Timer */ #define UFSHCI_AHIBERN8_TIMER_MASK GENMASK(9, 0) #define UFSHCI_AHIBERN8_SCALE_MASK GENMASK(12, 10) #define UFSHCI_AHIBERN8_SCALE_FACTOR 10 #define UFSHCI_AHIBERN8_MAX (1023 * 100000) /* * IS - Interrupt Status - 20h */ #define UTP_TRANSFER_REQ_COMPL 0x1 #define UIC_DME_END_PT_RESET 0x2 #define UIC_ERROR 0x4 #define UIC_TEST_MODE 0x8 #define UIC_POWER_MODE 0x10 #define UIC_HIBERNATE_EXIT 0x20 #define UIC_HIBERNATE_ENTER 0x40 #define UIC_LINK_LOST 0x80 #define UIC_LINK_STARTUP 0x100 #define UTP_TASK_REQ_COMPL 0x200 #define UIC_COMMAND_COMPL 0x400 #define DEVICE_FATAL_ERROR 0x800 #define CONTROLLER_FATAL_ERROR 0x10000 #define SYSTEM_BUS_FATAL_ERROR 0x20000 #define CRYPTO_ENGINE_FATAL_ERROR 0x40000 #define MCQ_CQ_EVENT_STATUS 0x100000 #define UFSHCD_UIC_HIBERN8_MASK (UIC_HIBERNATE_ENTER |\ UIC_HIBERNATE_EXIT) #define UFSHCD_UIC_PWR_MASK (UFSHCD_UIC_HIBERN8_MASK |\ UIC_POWER_MODE) #define UFSHCD_UIC_MASK (UIC_COMMAND_COMPL | UFSHCD_UIC_PWR_MASK) #define UFSHCD_ERROR_MASK (UIC_ERROR | INT_FATAL_ERRORS) #define INT_FATAL_ERRORS (DEVICE_FATAL_ERROR |\ CONTROLLER_FATAL_ERROR |\ SYSTEM_BUS_FATAL_ERROR |\ CRYPTO_ENGINE_FATAL_ERROR |\ UIC_LINK_LOST) /* HCS - Host Controller Status 30h */ #define DEVICE_PRESENT 0x1 #define UTP_TRANSFER_REQ_LIST_READY 0x2 #define UTP_TASK_REQ_LIST_READY 0x4 #define UIC_COMMAND_READY 0x8 #define HOST_ERROR_INDICATOR 0x10 #define DEVICE_ERROR_INDICATOR 0x20 #define UIC_POWER_MODE_CHANGE_REQ_STATUS_MASK UFS_MASK(0x7, 8) #define UFSHCD_STATUS_READY (UTP_TRANSFER_REQ_LIST_READY |\ UTP_TASK_REQ_LIST_READY |\ UIC_COMMAND_READY) enum { PWR_OK = 0x0, PWR_LOCAL = 0x01, PWR_REMOTE = 0x02, PWR_BUSY = 0x03, PWR_ERROR_CAP = 0x04, PWR_FATAL_ERROR = 0x05, }; /* HCE - Host Controller Enable 34h */ #define CONTROLLER_ENABLE 0x1 #define CONTROLLER_DISABLE 0x0 #define CRYPTO_GENERAL_ENABLE 0x2 /* UECPA - Host UIC Error Code PHY Adapter Layer 38h */ #define UIC_PHY_ADAPTER_LAYER_ERROR 0x80000000 #define UIC_PHY_ADAPTER_LAYER_ERROR_CODE_MASK 0x1F #define UIC_PHY_ADAPTER_LAYER_LANE_ERR_MASK 0xF #define UIC_PHY_ADAPTER_LAYER_GENERIC_ERROR 0x10 /* UECDL - Host UIC Error Code Data Link Layer 3Ch */ #define UIC_DATA_LINK_LAYER_ERROR 0x80000000 #define UIC_DATA_LINK_LAYER_ERROR_CODE_MASK 0xFFFF #define UIC_DATA_LINK_LAYER_ERROR_TCX_REP_TIMER_EXP 0x2 #define UIC_DATA_LINK_LAYER_ERROR_AFCX_REQ_TIMER_EXP 0x4 #define UIC_DATA_LINK_LAYER_ERROR_FCX_PRO_TIMER_EXP 0x8 #define UIC_DATA_LINK_LAYER_ERROR_RX_BUF_OF 0x20 #define UIC_DATA_LINK_LAYER_ERROR_PA_INIT 0x2000 #define UIC_DATA_LINK_LAYER_ERROR_NAC_RECEIVED 0x0001 #define UIC_DATA_LINK_LAYER_ERROR_TCx_REPLAY_TIMEOUT 0x0002 /* UECN - Host UIC Error Code Network Layer 40h */ #define UIC_NETWORK_LAYER_ERROR 0x80000000 #define UIC_NETWORK_LAYER_ERROR_CODE_MASK 0x7 #define UIC_NETWORK_UNSUPPORTED_HEADER_TYPE 0x1 #define UIC_NETWORK_BAD_DEVICEID_ENC 0x2 #define UIC_NETWORK_LHDR_TRAP_PACKET_DROPPING 0x4 /* UECT - Host UIC Error Code Transport Layer 44h */ #define UIC_TRANSPORT_LAYER_ERROR 0x80000000 #define UIC_TRANSPORT_LAYER_ERROR_CODE_MASK 0x7F #define UIC_TRANSPORT_UNSUPPORTED_HEADER_TYPE 0x1 #define UIC_TRANSPORT_UNKNOWN_CPORTID 0x2 #define UIC_TRANSPORT_NO_CONNECTION_RX 0x4 #define UIC_TRANSPORT_CONTROLLED_SEGMENT_DROPPING 0x8 #define UIC_TRANSPORT_BAD_TC 0x10 #define UIC_TRANSPORT_E2E_CREDIT_OVERFOW 0x20 #define UIC_TRANSPORT_SAFETY_VALUE_DROPPING 0x40 /* UECDME - Host UIC Error Code DME 48h */ #define UIC_DME_ERROR 0x80000000 #define UIC_DME_ERROR_CODE_MASK 0x1 /* UTRIACR - Interrupt Aggregation control register - 0x4Ch */ #define INT_AGGR_TIMEOUT_VAL_MASK 0xFF #define INT_AGGR_COUNTER_THRESHOLD_MASK UFS_MASK(0x1F, 8) #define INT_AGGR_COUNTER_AND_TIMER_RESET 0x10000 #define INT_AGGR_STATUS_BIT 0x100000 #define INT_AGGR_PARAM_WRITE 0x1000000 #define INT_AGGR_ENABLE 0x80000000 /* UTRLRSR - UTP Transfer Request Run-Stop Register 60h */ #define UTP_TRANSFER_REQ_LIST_RUN_STOP_BIT 0x1 /* UTMRLRSR - UTP Task Management Request Run-Stop Register 80h */ #define UTP_TASK_REQ_LIST_RUN_STOP_BIT 0x1 /* REG_UFS_MEM_CFG - Global Config Registers 300h */ #define MCQ_MODE_SELECT BIT(0) /* CQISy - CQ y Interrupt Status Register */ #define UFSHCD_MCQ_CQIS_TAIL_ENT_PUSH_STS 0x1 /* UICCMD - UIC Command */ #define COMMAND_OPCODE_MASK 0xFF #define GEN_SELECTOR_INDEX_MASK 0xFFFF #define MIB_ATTRIBUTE_MASK UFS_MASK(0xFFFF, 16) #define RESET_LEVEL 0xFF #define ATTR_SET_TYPE_MASK UFS_MASK(0xFF, 16) #define CONFIG_RESULT_CODE_MASK 0xFF #define GENERIC_ERROR_CODE_MASK 0xFF /* GenSelectorIndex calculation macros for M-PHY attributes */ #define UIC_ARG_MPHY_TX_GEN_SEL_INDEX(lane) (lane) #define UIC_ARG_MPHY_RX_GEN_SEL_INDEX(lane) (PA_MAXDATALANES + (lane)) #define UIC_ARG_MIB_SEL(attr, sel) ((((attr) & 0xFFFF) << 16) |\ ((sel) & 0xFFFF)) #define UIC_ARG_MIB(attr) UIC_ARG_MIB_SEL(attr, 0) #define UIC_ARG_ATTR_TYPE(t) (((t) & 0xFF) << 16) #define UIC_GET_ATTR_ID(v) (((v) >> 16) & 0xFFFF) /* Link Status*/ enum link_status { UFSHCD_LINK_IS_DOWN = 1, UFSHCD_LINK_IS_UP = 2, }; /* UIC Commands */ enum uic_cmd_dme { UIC_CMD_DME_GET = 0x01, UIC_CMD_DME_SET = 0x02, UIC_CMD_DME_PEER_GET = 0x03, UIC_CMD_DME_PEER_SET = 0x04, UIC_CMD_DME_POWERON = 0x10, UIC_CMD_DME_POWEROFF = 0x11, UIC_CMD_DME_ENABLE = 0x12, UIC_CMD_DME_RESET = 0x14, UIC_CMD_DME_END_PT_RST = 0x15, UIC_CMD_DME_LINK_STARTUP = 0x16, UIC_CMD_DME_HIBER_ENTER = 0x17, UIC_CMD_DME_HIBER_EXIT = 0x18, UIC_CMD_DME_TEST_MODE = 0x1A, }; /* UIC Config result code / Generic error code */ enum { UIC_CMD_RESULT_SUCCESS = 0x00, UIC_CMD_RESULT_INVALID_ATTR = 0x01, UIC_CMD_RESULT_FAILURE = 0x01, UIC_CMD_RESULT_INVALID_ATTR_VALUE = 0x02, UIC_CMD_RESULT_READ_ONLY_ATTR = 0x03, UIC_CMD_RESULT_WRITE_ONLY_ATTR = 0x04, UIC_CMD_RESULT_BAD_INDEX = 0x05, UIC_CMD_RESULT_LOCKED_ATTR = 0x06, UIC_CMD_RESULT_BAD_TEST_FEATURE_INDEX = 0x07, UIC_CMD_RESULT_PEER_COMM_FAILURE = 0x08, UIC_CMD_RESULT_BUSY = 0x09, UIC_CMD_RESULT_DME_FAILURE = 0x0A, }; #define MASK_UIC_COMMAND_RESULT 0xFF #define INT_AGGR_COUNTER_THLD_VAL(c) (((c) & 0x1F) << 8) #define INT_AGGR_TIMEOUT_VAL(t) (((t) & 0xFF) << 0) /* Interrupt disable masks */ enum { /* Interrupt disable mask for UFSHCI v1.1 */ INTERRUPT_MASK_ALL_VER_11 = 0x31FFF, /* Interrupt disable mask for UFSHCI v2.1 */ INTERRUPT_MASK_ALL_VER_21 = 0x71FFF, }; /* CCAP - Crypto Capability 100h */ union ufs_crypto_capabilities { __le32 reg_val; struct { u8 num_crypto_cap; u8 config_count; u8 reserved; u8 config_array_ptr; }; }; enum ufs_crypto_key_size { UFS_CRYPTO_KEY_SIZE_INVALID = 0x0, UFS_CRYPTO_KEY_SIZE_128 = 0x1, UFS_CRYPTO_KEY_SIZE_192 = 0x2, UFS_CRYPTO_KEY_SIZE_256 = 0x3, UFS_CRYPTO_KEY_SIZE_512 = 0x4, }; enum ufs_crypto_alg { UFS_CRYPTO_ALG_AES_XTS = 0x0, UFS_CRYPTO_ALG_BITLOCKER_AES_CBC = 0x1, UFS_CRYPTO_ALG_AES_ECB = 0x2, UFS_CRYPTO_ALG_ESSIV_AES_CBC = 0x3, }; /* x-CRYPTOCAP - Crypto Capability X */ union ufs_crypto_cap_entry { __le32 reg_val; struct { u8 algorithm_id; u8 sdus_mask; /* Supported data unit size mask */ u8 key_size; u8 reserved; }; }; #define UFS_CRYPTO_CONFIGURATION_ENABLE (1 << 7) #define UFS_CRYPTO_KEY_MAX_SIZE 64 /* x-CRYPTOCFG - Crypto Configuration X */ union ufs_crypto_cfg_entry { __le32 reg_val[32]; struct { u8 crypto_key[UFS_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]; }; }; /* * Request Descriptor Definitions */ /* To accommodate UFS2.0 required Command type */ enum { UTP_CMD_TYPE_UFS_STORAGE = 0x1, }; enum { UTP_SCSI_COMMAND = 0x00000000, UTP_NATIVE_UFS_COMMAND = 0x10000000, UTP_DEVICE_MANAGEMENT_FUNCTION = 0x20000000, }; /* UTP Transfer Request Data Direction (DD) */ enum utp_data_direction { UTP_NO_DATA_TRANSFER = 0, UTP_HOST_TO_DEVICE = 1, UTP_DEVICE_TO_HOST = 2, }; /* Overall command status values */ enum utp_ocs { OCS_SUCCESS = 0x0, OCS_INVALID_CMD_TABLE_ATTR = 0x1, OCS_INVALID_PRDT_ATTR = 0x2, OCS_MISMATCH_DATA_BUF_SIZE = 0x3, OCS_MISMATCH_RESP_UPIU_SIZE = 0x4, OCS_PEER_COMM_FAILURE = 0x5, OCS_ABORTED = 0x6, OCS_FATAL_ERROR = 0x7, OCS_DEVICE_FATAL_ERROR = 0x8, OCS_INVALID_CRYPTO_CONFIG = 0x9, OCS_GENERAL_CRYPTO_ERROR = 0xA, OCS_INVALID_COMMAND_STATUS = 0x0F, }; enum { MASK_OCS = 0x0F, }; /* The maximum length of the data byte count field in the PRDT is 256KB */ #define PRDT_DATA_BYTE_COUNT_MAX SZ_256K /* The granularity of the data byte count field in the PRDT is 32-bit */ #define PRDT_DATA_BYTE_COUNT_PAD 4 /** * struct ufshcd_sg_entry - UFSHCI PRD Entry * @addr: Physical address; DW-0 and DW-1. * @reserved: Reserved for future use DW-2 * @size: size of physical segment DW-3 */ struct ufshcd_sg_entry { __le64 addr; __le32 reserved; __le32 size; /* * followed by variant-specific fields if * CONFIG_SCSI_UFS_VARIABLE_SG_ENTRY_SIZE has been defined. */ }; /** * struct utp_transfer_cmd_desc - UTP Command Descriptor (UCD) * @command_upiu: Command UPIU Frame address * @response_upiu: Response UPIU Frame address * @prd_table: Physical Region Descriptor: an array of SG_ALL struct * ufshcd_sg_entry's. Variant-specific fields may be present after each. */ struct utp_transfer_cmd_desc { u8 command_upiu[ALIGNED_UPIU_SIZE]; u8 response_upiu[ALIGNED_UPIU_SIZE]; u8 prd_table[]; }; /** * struct request_desc_header - Descriptor Header common to both UTRD and UTMRD */ struct request_desc_header { u8 cci; u8 ehs_length; #if defined(__BIG_ENDIAN) u8 enable_crypto:1; u8 reserved2:7; u8 command_type:4; u8 reserved1:1; u8 data_direction:2; u8 interrupt:1; #elif defined(__LITTLE_ENDIAN) u8 reserved2:7; u8 enable_crypto:1; u8 interrupt:1; u8 data_direction:2; u8 reserved1:1; u8 command_type:4; #else #error #endif __le32 dunl; u8 ocs; u8 cds; __le16 ldbc; __le32 dunu; }; static_assert(sizeof(struct request_desc_header) == 16); /** * struct utp_transfer_req_desc - UTP Transfer Request Descriptor (UTRD) * @header: UTRD header DW-0 to DW-3 * @command_desc_base_addr: UCD base address DW 4-5 * @response_upiu_length: response UPIU length DW-6 * @response_upiu_offset: response UPIU offset DW-6 * @prd_table_length: Physical region descriptor length DW-7 * @prd_table_offset: Physical region descriptor offset DW-7 */ struct utp_transfer_req_desc { /* DW 0-3 */ struct request_desc_header header; /* DW 4-5*/ __le64 command_desc_base_addr; /* DW 6 */ __le16 response_upiu_length; __le16 response_upiu_offset; /* DW 7 */ __le16 prd_table_length; __le16 prd_table_offset; }; /* MCQ Completion Queue Entry */ struct cq_entry { /* DW 0-1 */ __le64 command_desc_base_addr; /* DW 2 */ __le16 response_upiu_length; __le16 response_upiu_offset; /* DW 3 */ __le16 prd_table_length; __le16 prd_table_offset; /* DW 4 */ __le32 status; /* DW 5-7 */ __le32 reserved[3]; }; static_assert(sizeof(struct cq_entry) == 32); /* * UTMRD structure. */ struct utp_task_req_desc { /* DW 0-3 */ struct request_desc_header header; /* DW 4-11 - Task request UPIU structure */ struct { struct utp_upiu_header req_header; __be32 input_param1; __be32 input_param2; __be32 input_param3; __be32 __reserved1[2]; } upiu_req; /* DW 12-19 - Task Management Response UPIU structure */ struct { struct utp_upiu_header rsp_header; __be32 output_param1; __be32 output_param2; __be32 __reserved2[3]; } upiu_rsp; }; #endif /* End of Header */