/* * Universal Flash Storage Host controller driver * * This code is based on drivers/scsi/ufs/ufs.h * Copyright (C) 2011-2013 Samsung India Software Operations * * Authors: * Santosh Yaraganavi * Vinayak Holikatti * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * See the COPYING file in the top-level directory or visit * * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * This program is provided "AS IS" and "WITH ALL FAULTS" and * without warranty of any kind. You are solely responsible for * determining the appropriateness of using and distributing * the program and assume all risks associated with your exercise * of rights with respect to the program, including but not limited * to infringement of third party rights, the risks and costs of * program errors, damage to or loss of data, programs or equipment, * and unavailability or interruption of operations. Under no * circumstances will the contributor of this Program be liable for * any damages of any kind arising from your use or distribution of * this program. */ #ifndef _UFS_H #define _UFS_H #include #include #define MAX_CDB_SIZE 16 #define GENERAL_UPIU_REQUEST_SIZE 32 #define QUERY_DESC_MAX_SIZE 255 #define QUERY_DESC_MIN_SIZE 2 #define QUERY_OSF_SIZE (GENERAL_UPIU_REQUEST_SIZE - \ (sizeof(struct utp_upiu_header))) #define UPIU_HEADER_DWORD(byte3, byte2, byte1, byte0)\ cpu_to_be32((byte3 << 24) | (byte2 << 16) |\ (byte1 << 8) | (byte0)) /* * UFS device may have standard LUs and LUN id could be from 0x00 to * 0x7F. Standard LUs use "Peripheral Device Addressing Format". * UFS device may also have the Well Known LUs (also referred as W-LU) * which again could be from 0x00 to 0x7F. For W-LUs, device only use * the "Extended Addressing Format" which means the W-LUNs would be * from 0xc100 (SCSI_W_LUN_BASE) onwards. * This means max. LUN number reported from UFS device could be 0xC17F. */ #define UFS_UPIU_MAX_UNIT_NUM_ID 0x7F #define UFS_MAX_LUNS (SCSI_W_LUN_BASE + UFS_UPIU_MAX_UNIT_NUM_ID) #define UFS_UPIU_WLUN_ID (1 << 7) #define UFS_UPIU_MAX_GENERAL_LUN 8 /* Well known logical unit id in LUN field of UPIU */ enum { UFS_UPIU_REPORT_LUNS_WLUN = 0x81, UFS_UPIU_UFS_DEVICE_WLUN = 0xD0, UFS_UPIU_BOOT_WLUN = 0xB0, UFS_UPIU_RPMB_WLUN = 0xC4, }; /* * UFS Protocol Information Unit related definitions */ /* Task management functions */ enum { UFS_ABORT_TASK = 0x01, UFS_ABORT_TASK_SET = 0x02, UFS_CLEAR_TASK_SET = 0x04, UFS_LOGICAL_RESET = 0x08, UFS_QUERY_TASK = 0x80, UFS_QUERY_TASK_SET = 0x81, }; /* UTP UPIU Transaction Codes Initiator to Target */ enum { UPIU_TRANSACTION_NOP_OUT = 0x00, UPIU_TRANSACTION_COMMAND = 0x01, UPIU_TRANSACTION_DATA_OUT = 0x02, UPIU_TRANSACTION_TASK_REQ = 0x04, UPIU_TRANSACTION_QUERY_REQ = 0x16, }; /* UTP UPIU Transaction Codes Target to Initiator */ enum { UPIU_TRANSACTION_NOP_IN = 0x20, UPIU_TRANSACTION_RESPONSE = 0x21, UPIU_TRANSACTION_DATA_IN = 0x22, UPIU_TRANSACTION_TASK_RSP = 0x24, UPIU_TRANSACTION_READY_XFER = 0x31, UPIU_TRANSACTION_QUERY_RSP = 0x36, UPIU_TRANSACTION_REJECT_UPIU = 0x3F, }; /* UPIU Read/Write flags */ enum { UPIU_CMD_FLAGS_NONE = 0x00, UPIU_CMD_FLAGS_WRITE = 0x20, UPIU_CMD_FLAGS_READ = 0x40, }; /* UPIU Task Attributes */ enum { UPIU_TASK_ATTR_SIMPLE = 0x00, UPIU_TASK_ATTR_ORDERED = 0x01, UPIU_TASK_ATTR_HEADQ = 0x02, UPIU_TASK_ATTR_ACA = 0x03, }; /* UPIU Query request function */ enum { UPIU_QUERY_FUNC_STANDARD_READ_REQUEST = 0x01, UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST = 0x81, }; /* Flag idn for Query Requests*/ enum flag_idn { QUERY_FLAG_IDN_FDEVICEINIT = 0x01, QUERY_FLAG_IDN_PWR_ON_WPE = 0x03, QUERY_FLAG_IDN_BKOPS_EN = 0x04, }; /* Attribute idn for Query requests */ enum attr_idn { QUERY_ATTR_IDN_ACTIVE_ICC_LVL = 0x03, QUERY_ATTR_IDN_BKOPS_STATUS = 0x05, QUERY_ATTR_IDN_EE_CONTROL = 0x0D, QUERY_ATTR_IDN_EE_STATUS = 0x0E, }; /* Descriptor idn for Query requests */ enum desc_idn { QUERY_DESC_IDN_DEVICE = 0x0, QUERY_DESC_IDN_CONFIGURAION = 0x1, QUERY_DESC_IDN_UNIT = 0x2, QUERY_DESC_IDN_RFU_0 = 0x3, QUERY_DESC_IDN_INTERCONNECT = 0x4, QUERY_DESC_IDN_STRING = 0x5, QUERY_DESC_IDN_RFU_1 = 0x6, QUERY_DESC_IDN_GEOMETRY = 0x7, QUERY_DESC_IDN_POWER = 0x8, QUERY_DESC_IDN_MAX, }; enum desc_header_offset { QUERY_DESC_LENGTH_OFFSET = 0x00, QUERY_DESC_DESC_TYPE_OFFSET = 0x01, }; enum ufs_desc_max_size { QUERY_DESC_DEVICE_MAX_SIZE = 0x1F, QUERY_DESC_CONFIGURAION_MAX_SIZE = 0x90, QUERY_DESC_UNIT_MAX_SIZE = 0x23, QUERY_DESC_INTERCONNECT_MAX_SIZE = 0x06, /* * Max. 126 UNICODE characters (2 bytes per character) plus 2 bytes * of descriptor header. */ QUERY_DESC_STRING_MAX_SIZE = 0xFE, QUERY_DESC_GEOMETRY_MAZ_SIZE = 0x44, QUERY_DESC_POWER_MAX_SIZE = 0x62, QUERY_DESC_RFU_MAX_SIZE = 0x00, }; /* Unit descriptor parameters offsets in bytes*/ enum unit_desc_param { UNIT_DESC_PARAM_LEN = 0x0, UNIT_DESC_PARAM_TYPE = 0x1, UNIT_DESC_PARAM_UNIT_INDEX = 0x2, UNIT_DESC_PARAM_LU_ENABLE = 0x3, UNIT_DESC_PARAM_BOOT_LUN_ID = 0x4, UNIT_DESC_PARAM_LU_WR_PROTECT = 0x5, UNIT_DESC_PARAM_LU_Q_DEPTH = 0x6, UNIT_DESC_PARAM_MEM_TYPE = 0x8, UNIT_DESC_PARAM_DATA_RELIABILITY = 0x9, UNIT_DESC_PARAM_LOGICAL_BLK_SIZE = 0xA, UNIT_DESC_PARAM_LOGICAL_BLK_COUNT = 0xB, UNIT_DESC_PARAM_ERASE_BLK_SIZE = 0x13, UNIT_DESC_PARAM_PROVISIONING_TYPE = 0x17, UNIT_DESC_PARAM_PHY_MEM_RSRC_CNT = 0x18, UNIT_DESC_PARAM_CTX_CAPABILITIES = 0x20, UNIT_DESC_PARAM_LARGE_UNIT_SIZE_M1 = 0x22, }; /* * Logical Unit Write Protect * 00h: LU not write protected * 01h: LU write protected when fPowerOnWPEn =1 * 02h: LU permanently write protected when fPermanentWPEn =1 */ enum ufs_lu_wp_type { UFS_LU_NO_WP = 0x00, UFS_LU_POWER_ON_WP = 0x01, UFS_LU_PERM_WP = 0x02, }; /* bActiveICCLevel parameter current units */ enum { UFSHCD_NANO_AMP = 0, UFSHCD_MICRO_AMP = 1, UFSHCD_MILI_AMP = 2, UFSHCD_AMP = 3, }; #define POWER_DESC_MAX_SIZE 0x62 #define POWER_DESC_MAX_ACTV_ICC_LVLS 16 /* Attribute bActiveICCLevel parameter bit masks definitions */ #define ATTR_ICC_LVL_UNIT_OFFSET 14 #define ATTR_ICC_LVL_UNIT_MASK (0x3 << ATTR_ICC_LVL_UNIT_OFFSET) #define ATTR_ICC_LVL_VALUE_MASK 0x3FF /* Power descriptor parameters offsets in bytes */ enum power_desc_param_offset { PWR_DESC_LEN = 0x0, PWR_DESC_TYPE = 0x1, PWR_DESC_ACTIVE_LVLS_VCC_0 = 0x2, PWR_DESC_ACTIVE_LVLS_VCCQ_0 = 0x22, PWR_DESC_ACTIVE_LVLS_VCCQ2_0 = 0x42, }; /* Exception event mask values */ enum { MASK_EE_STATUS = 0xFFFF, MASK_EE_URGENT_BKOPS = (1 << 2), }; /* Background operation status */ enum bkops_status { BKOPS_STATUS_NO_OP = 0x0, BKOPS_STATUS_NON_CRITICAL = 0x1, BKOPS_STATUS_PERF_IMPACT = 0x2, BKOPS_STATUS_CRITICAL = 0x3, BKOPS_STATUS_MAX = BKOPS_STATUS_CRITICAL, }; /* UTP QUERY Transaction Specific Fields OpCode */ enum query_opcode { UPIU_QUERY_OPCODE_NOP = 0x0, UPIU_QUERY_OPCODE_READ_DESC = 0x1, UPIU_QUERY_OPCODE_WRITE_DESC = 0x2, UPIU_QUERY_OPCODE_READ_ATTR = 0x3, UPIU_QUERY_OPCODE_WRITE_ATTR = 0x4, UPIU_QUERY_OPCODE_READ_FLAG = 0x5, UPIU_QUERY_OPCODE_SET_FLAG = 0x6, UPIU_QUERY_OPCODE_CLEAR_FLAG = 0x7, UPIU_QUERY_OPCODE_TOGGLE_FLAG = 0x8, }; /* Query response result code */ enum { QUERY_RESULT_SUCCESS = 0x00, QUERY_RESULT_NOT_READABLE = 0xF6, QUERY_RESULT_NOT_WRITEABLE = 0xF7, QUERY_RESULT_ALREADY_WRITTEN = 0xF8, QUERY_RESULT_INVALID_LENGTH = 0xF9, QUERY_RESULT_INVALID_VALUE = 0xFA, QUERY_RESULT_INVALID_SELECTOR = 0xFB, QUERY_RESULT_INVALID_INDEX = 0xFC, QUERY_RESULT_INVALID_IDN = 0xFD, QUERY_RESULT_INVALID_OPCODE = 0xFE, QUERY_RESULT_GENERAL_FAILURE = 0xFF, }; /* UTP Transfer Request Command Type (CT) */ enum { UPIU_COMMAND_SET_TYPE_SCSI = 0x0, UPIU_COMMAND_SET_TYPE_UFS = 0x1, UPIU_COMMAND_SET_TYPE_QUERY = 0x2, }; /* UTP Transfer Request Command Offset */ #define UPIU_COMMAND_TYPE_OFFSET 28 /* Offset of the response code in the UPIU header */ #define UPIU_RSP_CODE_OFFSET 8 enum { MASK_SCSI_STATUS = 0xFF, MASK_TASK_RESPONSE = 0xFF00, MASK_RSP_UPIU_RESULT = 0xFFFF, MASK_QUERY_DATA_SEG_LEN = 0xFFFF, MASK_RSP_UPIU_DATA_SEG_LEN = 0xFFFF, MASK_RSP_EXCEPTION_EVENT = 0x10000, }; /* Task management service response */ enum { UPIU_TASK_MANAGEMENT_FUNC_COMPL = 0x00, UPIU_TASK_MANAGEMENT_FUNC_NOT_SUPPORTED = 0x04, UPIU_TASK_MANAGEMENT_FUNC_SUCCEEDED = 0x08, UPIU_TASK_MANAGEMENT_FUNC_FAILED = 0x05, UPIU_INCORRECT_LOGICAL_UNIT_NO = 0x09, }; /* UFS device power modes */ enum ufs_dev_pwr_mode { UFS_ACTIVE_PWR_MODE = 1, UFS_SLEEP_PWR_MODE = 2, UFS_POWERDOWN_PWR_MODE = 3, }; /** * struct utp_upiu_header - UPIU header structure * @dword_0: UPIU header DW-0 * @dword_1: UPIU header DW-1 * @dword_2: UPIU header DW-2 */ struct utp_upiu_header { __be32 dword_0; __be32 dword_1; __be32 dword_2; }; /** * struct utp_upiu_cmd - Command UPIU structure * @data_transfer_len: Data Transfer Length DW-3 * @cdb: Command Descriptor Block CDB DW-4 to DW-7 */ struct utp_upiu_cmd { __be32 exp_data_transfer_len; u8 cdb[MAX_CDB_SIZE]; }; /** * struct utp_upiu_query - upiu request buffer structure for * query request. * @opcode: command to perform B-0 * @idn: a value that indicates the particular type of data B-1 * @index: Index to further identify data B-2 * @selector: Index to further identify data B-3 * @reserved_osf: spec reserved field B-4,5 * @length: number of descriptor bytes to read/write B-6,7 * @value: Attribute value to be written DW-5 * @reserved: spec reserved DW-6,7 */ struct utp_upiu_query { u8 opcode; u8 idn; u8 index; u8 selector; __be16 reserved_osf; __be16 length; __be32 value; __be32 reserved[2]; }; /** * struct utp_upiu_req - general upiu request structure * @header:UPIU header structure DW-0 to DW-2 * @sc: fields structure for scsi command DW-3 to DW-7 * @qr: fields structure for query request DW-3 to DW-7 */ struct utp_upiu_req { struct utp_upiu_header header; union { struct utp_upiu_cmd sc; struct utp_upiu_query qr; }; }; /** * struct utp_cmd_rsp - Response UPIU structure * @residual_transfer_count: Residual transfer count DW-3 * @reserved: Reserved double words DW-4 to DW-7 * @sense_data_len: Sense data length DW-8 U16 * @sense_data: Sense data field DW-8 to DW-12 */ struct utp_cmd_rsp { __be32 residual_transfer_count; __be32 reserved[4]; __be16 sense_data_len; u8 sense_data[18]; }; /** * struct utp_upiu_rsp - general upiu response structure * @header: UPIU header structure DW-0 to DW-2 * @sr: fields structure for scsi command DW-3 to DW-12 * @qr: fields structure for query request DW-3 to DW-7 */ struct utp_upiu_rsp { struct utp_upiu_header header; union { struct utp_cmd_rsp sr; struct utp_upiu_query qr; }; }; /** * struct utp_upiu_task_req - Task request UPIU structure * @header - UPIU header structure DW0 to DW-2 * @input_param1: Input parameter 1 DW-3 * @input_param2: Input parameter 2 DW-4 * @input_param3: Input parameter 3 DW-5 * @reserved: Reserved double words DW-6 to DW-7 */ struct utp_upiu_task_req { struct utp_upiu_header header; __be32 input_param1; __be32 input_param2; __be32 input_param3; __be32 reserved[2]; }; /** * struct utp_upiu_task_rsp - Task Management Response UPIU structure * @header: UPIU header structure DW0-DW-2 * @output_param1: Ouput parameter 1 DW3 * @output_param2: Output parameter 2 DW4 * @reserved: Reserved double words DW-5 to DW-7 */ struct utp_upiu_task_rsp { struct utp_upiu_header header; __be32 output_param1; __be32 output_param2; __be32 reserved[3]; }; /** * struct ufs_query_req - parameters for building a query request * @query_func: UPIU header query function * @upiu_req: the query request data */ struct ufs_query_req { u8 query_func; struct utp_upiu_query upiu_req; }; /** * struct ufs_query_resp - UPIU QUERY * @response: device response code * @upiu_res: query response data */ struct ufs_query_res { u8 response; struct utp_upiu_query upiu_res; }; #define UFS_VREG_VCC_MIN_UV 2700000 /* uV */ #define UFS_VREG_VCC_MAX_UV 3600000 /* uV */ #define UFS_VREG_VCC_1P8_MIN_UV 1700000 /* uV */ #define UFS_VREG_VCC_1P8_MAX_UV 1950000 /* uV */ #define UFS_VREG_VCCQ_MIN_UV 1100000 /* uV */ #define UFS_VREG_VCCQ_MAX_UV 1300000 /* uV */ #define UFS_VREG_VCCQ2_MIN_UV 1650000 /* uV */ #define UFS_VREG_VCCQ2_MAX_UV 1950000 /* uV */ /* * VCCQ & VCCQ2 current requirement when UFS device is in sleep state * and link is in Hibern8 state. */ #define UFS_VREG_LPM_LOAD_UA 1000 /* uA */ struct ufs_vreg { struct regulator *reg; const char *name; bool enabled; int min_uV; int max_uV; int min_uA; int max_uA; }; struct ufs_vreg_info { struct ufs_vreg *vcc; struct ufs_vreg *vccq; struct ufs_vreg *vccq2; struct ufs_vreg *vdd_hba; }; struct ufs_dev_info { bool f_power_on_wp_en; /* Keeps information if any of the LU is power on write protected */ bool is_lu_power_on_wp; }; #endif /* End of Header */