[deliverable/linux.git] / drivers / scsi / ufs / ufs.h

/*
 * 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 <santosh.sy@samsung.com>
 *	Vinayak Holikatti <h.vinayak@samsung.com>
 *
 * 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
 * <http://www.gnu.org/licenses/gpl-2.0.html>
 *
 * 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 <linux/mutex.h>
#include <linux/types.h>

#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_DESC_HDR_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_MAX_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,
};

/* Device descriptor parameters offsets in bytes*/
enum device_desc_param {
	DEVICE_DESC_PARAM_LEN			= 0x0,
	DEVICE_DESC_PARAM_TYPE			= 0x1,
	DEVICE_DESC_PARAM_DEVICE_TYPE		= 0x2,
	DEVICE_DESC_PARAM_DEVICE_CLASS		= 0x3,
	DEVICE_DESC_PARAM_DEVICE_SUB_CLASS	= 0x4,
	DEVICE_DESC_PARAM_PRTCL			= 0x5,
	DEVICE_DESC_PARAM_NUM_LU		= 0x6,
	DEVICE_DESC_PARAM_NUM_WLU		= 0x7,
	DEVICE_DESC_PARAM_BOOT_ENBL		= 0x8,
	DEVICE_DESC_PARAM_DESC_ACCSS_ENBL	= 0x9,
	DEVICE_DESC_PARAM_INIT_PWR_MODE		= 0xA,
	DEVICE_DESC_PARAM_HIGH_PR_LUN		= 0xB,
	DEVICE_DESC_PARAM_SEC_RMV_TYPE		= 0xC,
	DEVICE_DESC_PARAM_SEC_LU		= 0xD,
	DEVICE_DESC_PARAM_BKOP_TERM_LT		= 0xE,
	DEVICE_DESC_PARAM_ACTVE_ICC_LVL		= 0xF,
	DEVICE_DESC_PARAM_SPEC_VER		= 0x10,
	DEVICE_DESC_PARAM_MANF_DATE		= 0x12,
	DEVICE_DESC_PARAM_MANF_NAME		= 0x14,
	DEVICE_DESC_PARAM_PRDCT_NAME		= 0x15,
	DEVICE_DESC_PARAM_SN			= 0x16,
	DEVICE_DESC_PARAM_OEM_ID		= 0x17,
	DEVICE_DESC_PARAM_MANF_ID		= 0x18,
	DEVICE_DESC_PARAM_UD_OFFSET		= 0x1A,
	DEVICE_DESC_PARAM_UD_LEN		= 0x1B,
	DEVICE_DESC_PARAM_RTT_CAP		= 0x1C,
	DEVICE_DESC_PARAM_FRQ_RTC		= 0x1D,
};

/*
 * 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;
	bool unused;
	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 */
Commit	Line	Data
7a3e97b0 SY	1	/*
	2	* Universal Flash Storage Host controller driver
	3	*
	4	* This code is based on drivers/scsi/ufs/ufs.h
3b1d0580	5	* Copyright (C) 2011-2013 Samsung India Software Operations
7a3e97b0	6	*
3b1d0580 VH	7	* Authors:
	8	* Santosh Yaraganavi <santosh.sy@samsung.com>
	9	* Vinayak Holikatti <h.vinayak@samsung.com>
7a3e97b0 SY	10	*
	11	* This program is free software; you can redistribute it and/or
	12	* modify it under the terms of the GNU General Public License
	13	* as published by the Free Software Foundation; either version 2
	14	* of the License, or (at your option) any later version.
3b1d0580 VH	15	* See the COPYING file in the top-level directory or visit
3b1d0580 VH	16	* <http://www.gnu.org/licenses/gpl-2.0.html>
7a3e97b0 SY	17	*
	18	* This program is distributed in the hope that it will be useful,
	19	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	20	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	21	* GNU General Public License for more details.
	22	*
3b1d0580 VH	23	* This program is provided "AS IS" and "WITH ALL FAULTS" and
	24	* without warranty of any kind. You are solely responsible for
	25	* determining the appropriateness of using and distributing
	26	* the program and assume all risks associated with your exercise
	27	* of rights with respect to the program, including but not limited
	28	* to infringement of third party rights, the risks and costs of
	29	* program errors, damage to or loss of data, programs or equipment,
	30	* and unavailability or interruption of operations. Under no
	31	* circumstances will the contributor of this Program be liable for
	32	* any damages of any kind arising from your use or distribution of
	33	* this program.
7a3e97b0 SY	34	*/
	35
	36	#ifndef _UFS_H
	37	#define _UFS_H
	38
5a0b0cb9 SRT	39	#include <linux/mutex.h>
	40	#include <linux/types.h>
	41
7a3e97b0	42	#define MAX_CDB_SIZE 16
68078d5c	43	#define GENERAL_UPIU_REQUEST_SIZE 32
d44a5f98 DR	44	#define QUERY_DESC_MAX_SIZE 255
d44a5f98 DR	45	#define QUERY_DESC_MIN_SIZE 2
b573d484	46	#define QUERY_DESC_HDR_SIZE 2
68078d5c DR	47	#define QUERY_OSF_SIZE (GENERAL_UPIU_REQUEST_SIZE - \
68078d5c DR	48	(sizeof(struct utp_upiu_header)))
7a3e97b0 SY	49
7a3e97b0 SY	50	#define UPIU_HEADER_DWORD(byte3, byte2, byte1, byte0)\
5a0b0cb9	51	cpu_to_be32((byte3 << 24) \| (byte2 << 16) \|\
7a3e97b0	52	(byte1 << 8) \| (byte0))
0ce147d4 SJ	53	/*
	54	* UFS device may have standard LUs and LUN id could be from 0x00 to
	55	* 0x7F. Standard LUs use "Peripheral Device Addressing Format".
	56	* UFS device may also have the Well Known LUs (also referred as W-LU)
	57	* which again could be from 0x00 to 0x7F. For W-LUs, device only use
	58	* the "Extended Addressing Format" which means the W-LUNs would be
	59	* from 0xc100 (SCSI_W_LUN_BASE) onwards.
	60	* This means max. LUN number reported from UFS device could be 0xC17F.
	61	*/
	62	#define UFS_UPIU_MAX_UNIT_NUM_ID 0x7F
	63	#define UFS_MAX_LUNS (SCSI_W_LUN_BASE + UFS_UPIU_MAX_UNIT_NUM_ID)
	64	#define UFS_UPIU_WLUN_ID (1 << 7)
da461cec SJ	65	#define UFS_UPIU_MAX_GENERAL_LUN 8
da461cec SJ	66
0ce147d4 SJ	67	/* Well known logical unit id in LUN field of UPIU */
	68	enum {
	69	UFS_UPIU_REPORT_LUNS_WLUN = 0x81,
	70	UFS_UPIU_UFS_DEVICE_WLUN = 0xD0,
	71	UFS_UPIU_BOOT_WLUN = 0xB0,
	72	UFS_UPIU_RPMB_WLUN = 0xC4,
	73	};
	74
7a3e97b0 SY	75	/*
	76	* UFS Protocol Information Unit related definitions
	77	*/
	78
	79	/* Task management functions */
	80	enum {
	81	UFS_ABORT_TASK = 0x01,
	82	UFS_ABORT_TASK_SET = 0x02,
	83	UFS_CLEAR_TASK_SET = 0x04,
	84	UFS_LOGICAL_RESET = 0x08,
	85	UFS_QUERY_TASK = 0x80,
	86	UFS_QUERY_TASK_SET = 0x81,
	87	};
	88
	89	/* UTP UPIU Transaction Codes Initiator to Target */
	90	enum {
	91	UPIU_TRANSACTION_NOP_OUT = 0x00,
	92	UPIU_TRANSACTION_COMMAND = 0x01,
	93	UPIU_TRANSACTION_DATA_OUT = 0x02,
	94	UPIU_TRANSACTION_TASK_REQ = 0x04,
68078d5c	95	UPIU_TRANSACTION_QUERY_REQ = 0x16,
7a3e97b0 SY	96	};
	97
	98	/* UTP UPIU Transaction Codes Target to Initiator */
	99	enum {
	100	UPIU_TRANSACTION_NOP_IN = 0x20,
	101	UPIU_TRANSACTION_RESPONSE = 0x21,
	102	UPIU_TRANSACTION_DATA_IN = 0x22,
	103	UPIU_TRANSACTION_TASK_RSP = 0x24,
	104	UPIU_TRANSACTION_READY_XFER = 0x31,
	105	UPIU_TRANSACTION_QUERY_RSP = 0x36,
5a0b0cb9	106	UPIU_TRANSACTION_REJECT_UPIU = 0x3F,
7a3e97b0 SY	107	};
	108
	109	/* UPIU Read/Write flags */
	110	enum {
	111	UPIU_CMD_FLAGS_NONE = 0x00,
	112	UPIU_CMD_FLAGS_WRITE = 0x20,
	113	UPIU_CMD_FLAGS_READ = 0x40,
	114	};
	115
	116	/* UPIU Task Attributes */
	117	enum {
	118	UPIU_TASK_ATTR_SIMPLE = 0x00,
	119	UPIU_TASK_ATTR_ORDERED = 0x01,
	120	UPIU_TASK_ATTR_HEADQ = 0x02,
	121	UPIU_TASK_ATTR_ACA = 0x03,
	122	};
	123
68078d5c	124	/* UPIU Query request function */
7a3e97b0	125	enum {
68078d5c DR	126	UPIU_QUERY_FUNC_STANDARD_READ_REQUEST = 0x01,
	127	UPIU_QUERY_FUNC_STANDARD_WRITE_REQUEST = 0x81,
	128	};
	129
	130	/* Flag idn for Query Requests*/
	131	enum flag_idn {
	132	QUERY_FLAG_IDN_FDEVICEINIT = 0x01,
57d104c1	133	QUERY_FLAG_IDN_PWR_ON_WPE = 0x03,
66ec6d59 SRT	134	QUERY_FLAG_IDN_BKOPS_EN = 0x04,
	135	};
	136
	137	/* Attribute idn for Query requests */
	138	enum attr_idn {
3a4bf06d	139	QUERY_ATTR_IDN_ACTIVE_ICC_LVL = 0x03,
66ec6d59 SRT	140	QUERY_ATTR_IDN_BKOPS_STATUS = 0x05,
	141	QUERY_ATTR_IDN_EE_CONTROL = 0x0D,
	142	QUERY_ATTR_IDN_EE_STATUS = 0x0E,
	143	};
	144
d44a5f98 DR	145	/* Descriptor idn for Query requests */
	146	enum desc_idn {
	147	QUERY_DESC_IDN_DEVICE = 0x0,
	148	QUERY_DESC_IDN_CONFIGURAION = 0x1,
	149	QUERY_DESC_IDN_UNIT = 0x2,
	150	QUERY_DESC_IDN_RFU_0 = 0x3,
	151	QUERY_DESC_IDN_INTERCONNECT = 0x4,
	152	QUERY_DESC_IDN_STRING = 0x5,
	153	QUERY_DESC_IDN_RFU_1 = 0x6,
	154	QUERY_DESC_IDN_GEOMETRY = 0x7,
	155	QUERY_DESC_IDN_POWER = 0x8,
da461cec SJ	156	QUERY_DESC_IDN_MAX,
	157	};
	158
	159	enum desc_header_offset {
	160	QUERY_DESC_LENGTH_OFFSET = 0x00,
	161	QUERY_DESC_DESC_TYPE_OFFSET = 0x01,
	162	};
	163
	164	enum ufs_desc_max_size {
	165	QUERY_DESC_DEVICE_MAX_SIZE = 0x1F,
	166	QUERY_DESC_CONFIGURAION_MAX_SIZE = 0x90,
	167	QUERY_DESC_UNIT_MAX_SIZE = 0x23,
	168	QUERY_DESC_INTERCONNECT_MAX_SIZE = 0x06,
	169	/*
	170	* Max. 126 UNICODE characters (2 bytes per character) plus 2 bytes
	171	* of descriptor header.
	172	*/
	173	QUERY_DESC_STRING_MAX_SIZE = 0xFE,
1ce21794	174	QUERY_DESC_GEOMETRY_MAX_SIZE = 0x44,
da461cec SJ	175	QUERY_DESC_POWER_MAX_SIZE = 0x62,
da461cec SJ	176	QUERY_DESC_RFU_MAX_SIZE = 0x00,
d44a5f98 DR	177	};
d44a5f98 DR	178
1b3e8956 DR	179	/* Unit descriptor parameters offsets in bytes*/
	180	enum unit_desc_param {
	181	UNIT_DESC_PARAM_LEN = 0x0,
	182	UNIT_DESC_PARAM_TYPE = 0x1,
	183	UNIT_DESC_PARAM_UNIT_INDEX = 0x2,
	184	UNIT_DESC_PARAM_LU_ENABLE = 0x3,
	185	UNIT_DESC_PARAM_BOOT_LUN_ID = 0x4,
	186	UNIT_DESC_PARAM_LU_WR_PROTECT = 0x5,
	187	UNIT_DESC_PARAM_LU_Q_DEPTH = 0x6,
	188	UNIT_DESC_PARAM_MEM_TYPE = 0x8,
	189	UNIT_DESC_PARAM_DATA_RELIABILITY = 0x9,
	190	UNIT_DESC_PARAM_LOGICAL_BLK_SIZE = 0xA,
	191	UNIT_DESC_PARAM_LOGICAL_BLK_COUNT = 0xB,
	192	UNIT_DESC_PARAM_ERASE_BLK_SIZE = 0x13,
	193	UNIT_DESC_PARAM_PROVISIONING_TYPE = 0x17,
	194	UNIT_DESC_PARAM_PHY_MEM_RSRC_CNT = 0x18,
	195	UNIT_DESC_PARAM_CTX_CAPABILITIES = 0x20,
	196	UNIT_DESC_PARAM_LARGE_UNIT_SIZE_M1 = 0x22,
	197	};
	198
c58ab7aa YG	199	/* Device descriptor parameters offsets in bytes*/
	200	enum device_desc_param {
	201	DEVICE_DESC_PARAM_LEN = 0x0,
	202	DEVICE_DESC_PARAM_TYPE = 0x1,
	203	DEVICE_DESC_PARAM_DEVICE_TYPE = 0x2,
	204	DEVICE_DESC_PARAM_DEVICE_CLASS = 0x3,
	205	DEVICE_DESC_PARAM_DEVICE_SUB_CLASS = 0x4,
	206	DEVICE_DESC_PARAM_PRTCL = 0x5,
	207	DEVICE_DESC_PARAM_NUM_LU = 0x6,
	208	DEVICE_DESC_PARAM_NUM_WLU = 0x7,
	209	DEVICE_DESC_PARAM_BOOT_ENBL = 0x8,
	210	DEVICE_DESC_PARAM_DESC_ACCSS_ENBL = 0x9,
	211	DEVICE_DESC_PARAM_INIT_PWR_MODE = 0xA,
	212	DEVICE_DESC_PARAM_HIGH_PR_LUN = 0xB,
	213	DEVICE_DESC_PARAM_SEC_RMV_TYPE = 0xC,
	214	DEVICE_DESC_PARAM_SEC_LU = 0xD,
	215	DEVICE_DESC_PARAM_BKOP_TERM_LT = 0xE,
	216	DEVICE_DESC_PARAM_ACTVE_ICC_LVL = 0xF,
	217	DEVICE_DESC_PARAM_SPEC_VER = 0x10,
	218	DEVICE_DESC_PARAM_MANF_DATE = 0x12,
	219	DEVICE_DESC_PARAM_MANF_NAME = 0x14,
	220	DEVICE_DESC_PARAM_PRDCT_NAME = 0x15,
	221	DEVICE_DESC_PARAM_SN = 0x16,
	222	DEVICE_DESC_PARAM_OEM_ID = 0x17,
	223	DEVICE_DESC_PARAM_MANF_ID = 0x18,
	224	DEVICE_DESC_PARAM_UD_OFFSET = 0x1A,
	225	DEVICE_DESC_PARAM_UD_LEN = 0x1B,
	226	DEVICE_DESC_PARAM_RTT_CAP = 0x1C,
	227	DEVICE_DESC_PARAM_FRQ_RTC = 0x1D,
	228	};
	229
57d104c1 SJ	230	/*
	231	* Logical Unit Write Protect
	232	* 00h: LU not write protected
	233	* 01h: LU write protected when fPowerOnWPEn =1
	234	* 02h: LU permanently write protected when fPermanentWPEn =1
	235	*/
	236	enum ufs_lu_wp_type {
	237	UFS_LU_NO_WP = 0x00,
	238	UFS_LU_POWER_ON_WP = 0x01,
	239	UFS_LU_PERM_WP = 0x02,
	240	};
	241
3a4bf06d YG	242	/* bActiveICCLevel parameter current units */
	243	enum {
	244	UFSHCD_NANO_AMP = 0,
	245	UFSHCD_MICRO_AMP = 1,
	246	UFSHCD_MILI_AMP = 2,
	247	UFSHCD_AMP = 3,
	248	};
	249
	250	#define POWER_DESC_MAX_SIZE 0x62
	251	#define POWER_DESC_MAX_ACTV_ICC_LVLS 16
	252
	253	/* Attribute bActiveICCLevel parameter bit masks definitions */
	254	#define ATTR_ICC_LVL_UNIT_OFFSET 14
	255	#define ATTR_ICC_LVL_UNIT_MASK (0x3 << ATTR_ICC_LVL_UNIT_OFFSET)
	256	#define ATTR_ICC_LVL_VALUE_MASK 0x3FF
	257
	258	/* Power descriptor parameters offsets in bytes */
	259	enum power_desc_param_offset {
	260	PWR_DESC_LEN = 0x0,
	261	PWR_DESC_TYPE = 0x1,
	262	PWR_DESC_ACTIVE_LVLS_VCC_0 = 0x2,
	263	PWR_DESC_ACTIVE_LVLS_VCCQ_0 = 0x22,
	264	PWR_DESC_ACTIVE_LVLS_VCCQ2_0 = 0x42,
	265	};
	266
66ec6d59 SRT	267	/* Exception event mask values */
	268	enum {
	269	MASK_EE_STATUS = 0xFFFF,
	270	MASK_EE_URGENT_BKOPS = (1 << 2),
	271	};
	272
	273	/* Background operation status */
57d104c1	274	enum bkops_status {
66ec6d59 SRT	275	BKOPS_STATUS_NO_OP = 0x0,
	276	BKOPS_STATUS_NON_CRITICAL = 0x1,
	277	BKOPS_STATUS_PERF_IMPACT = 0x2,
	278	BKOPS_STATUS_CRITICAL = 0x3,
57d104c1	279	BKOPS_STATUS_MAX = BKOPS_STATUS_CRITICAL,
68078d5c DR	280	};
	281
	282	/* UTP QUERY Transaction Specific Fields OpCode */
	283	enum query_opcode {
7a3e97b0 SY	284	UPIU_QUERY_OPCODE_NOP = 0x0,
	285	UPIU_QUERY_OPCODE_READ_DESC = 0x1,
	286	UPIU_QUERY_OPCODE_WRITE_DESC = 0x2,
	287	UPIU_QUERY_OPCODE_READ_ATTR = 0x3,
	288	UPIU_QUERY_OPCODE_WRITE_ATTR = 0x4,
	289	UPIU_QUERY_OPCODE_READ_FLAG = 0x5,
	290	UPIU_QUERY_OPCODE_SET_FLAG = 0x6,
	291	UPIU_QUERY_OPCODE_CLEAR_FLAG = 0x7,
	292	UPIU_QUERY_OPCODE_TOGGLE_FLAG = 0x8,
	293	};
	294
68078d5c DR	295	/* Query response result code */
	296	enum {
	297	QUERY_RESULT_SUCCESS = 0x00,
	298	QUERY_RESULT_NOT_READABLE = 0xF6,
	299	QUERY_RESULT_NOT_WRITEABLE = 0xF7,
	300	QUERY_RESULT_ALREADY_WRITTEN = 0xF8,
	301	QUERY_RESULT_INVALID_LENGTH = 0xF9,
	302	QUERY_RESULT_INVALID_VALUE = 0xFA,
	303	QUERY_RESULT_INVALID_SELECTOR = 0xFB,
	304	QUERY_RESULT_INVALID_INDEX = 0xFC,
	305	QUERY_RESULT_INVALID_IDN = 0xFD,
	306	QUERY_RESULT_INVALID_OPCODE = 0xFE,
	307	QUERY_RESULT_GENERAL_FAILURE = 0xFF,
	308	};
	309
7a3e97b0 SY	310	/* UTP Transfer Request Command Type (CT) */
	311	enum {
	312	UPIU_COMMAND_SET_TYPE_SCSI = 0x0,
	313	UPIU_COMMAND_SET_TYPE_UFS = 0x1,
	314	UPIU_COMMAND_SET_TYPE_QUERY = 0x2,
	315	};
	316
5a0b0cb9 SRT	317	/* UTP Transfer Request Command Offset */
	318	#define UPIU_COMMAND_TYPE_OFFSET 28
	319
	320	/* Offset of the response code in the UPIU header */
	321	#define UPIU_RSP_CODE_OFFSET 8
	322
7a3e97b0	323	enum {
68078d5c DR	324	MASK_SCSI_STATUS = 0xFF,
	325	MASK_TASK_RESPONSE = 0xFF00,
	326	MASK_RSP_UPIU_RESULT = 0xFFFF,
	327	MASK_QUERY_DATA_SEG_LEN = 0xFFFF,
1c2623c5	328	MASK_RSP_UPIU_DATA_SEG_LEN = 0xFFFF,
66ec6d59	329	MASK_RSP_EXCEPTION_EVENT = 0x10000,
7a3e97b0 SY	330	};
	331
	332	/* Task management service response */
	333	enum {
	334	UPIU_TASK_MANAGEMENT_FUNC_COMPL = 0x00,
	335	UPIU_TASK_MANAGEMENT_FUNC_NOT_SUPPORTED = 0x04,
	336	UPIU_TASK_MANAGEMENT_FUNC_SUCCEEDED = 0x08,
	337	UPIU_TASK_MANAGEMENT_FUNC_FAILED = 0x05,
	338	UPIU_INCORRECT_LOGICAL_UNIT_NO = 0x09,
	339	};
57d104c1 SJ	340
	341	/* UFS device power modes */
	342	enum ufs_dev_pwr_mode {
	343	UFS_ACTIVE_PWR_MODE = 1,
	344	UFS_SLEEP_PWR_MODE = 2,
	345	UFS_POWERDOWN_PWR_MODE = 3,
	346	};
	347
7a3e97b0 SY	348	/**
	349	* struct utp_upiu_header - UPIU header structure
	350	* @dword_0: UPIU header DW-0
	351	* @dword_1: UPIU header DW-1
	352	* @dword_2: UPIU header DW-2
	353	*/
	354	struct utp_upiu_header {
e8c8e82a SRT	355	__be32 dword_0;
	356	__be32 dword_1;
	357	__be32 dword_2;
7a3e97b0 SY	358	};
	359
	360	/**
	361	* struct utp_upiu_cmd - Command UPIU structure
7a3e97b0 SY	362	* @data_transfer_len: Data Transfer Length DW-3
	363	* @cdb: Command Descriptor Block CDB DW-4 to DW-7
	364	*/
	365	struct utp_upiu_cmd {
e8c8e82a	366	__be32 exp_data_transfer_len;
7a3e97b0 SY	367	u8 cdb[MAX_CDB_SIZE];
	368	};
	369
68078d5c DR	370	/**
	371	* struct utp_upiu_query - upiu request buffer structure for
	372	* query request.
	373	* @opcode: command to perform B-0
	374	* @idn: a value that indicates the particular type of data B-1
	375	* @index: Index to further identify data B-2
	376	* @selector: Index to further identify data B-3
	377	* @reserved_osf: spec reserved field B-4,5
	378	* @length: number of descriptor bytes to read/write B-6,7
	379	* @value: Attribute value to be written DW-5
	380	* @reserved: spec reserved DW-6,7
	381	*/
	382	struct utp_upiu_query {
	383	u8 opcode;
	384	u8 idn;
	385	u8 index;
	386	u8 selector;
e8c8e82a SRT	387	__be16 reserved_osf;
	388	__be16 length;
	389	__be32 value;
	390	__be32 reserved[2];
68078d5c DR	391	};
68078d5c DR	392
7a3e97b0	393	/**
5a0b0cb9 SRT	394	* struct utp_upiu_req - general upiu request structure
	395	* @header:UPIU header structure DW-0 to DW-2
	396	* @sc: fields structure for scsi command DW-3 to DW-7
68078d5c	397	* @qr: fields structure for query request DW-3 to DW-7
5a0b0cb9 SRT	398	*/
	399	struct utp_upiu_req {
	400	struct utp_upiu_header header;
68078d5c DR	401	union {
	402	struct utp_upiu_cmd sc;
	403	struct utp_upiu_query qr;
	404	};
5a0b0cb9 SRT	405	};
	406
	407	/**
	408	* struct utp_cmd_rsp - Response UPIU structure
7a3e97b0 SY	409	* @residual_transfer_count: Residual transfer count DW-3
	410	* @reserved: Reserved double words DW-4 to DW-7
	411	* @sense_data_len: Sense data length DW-8 U16
	412	* @sense_data: Sense data field DW-8 to DW-12
	413	*/
5a0b0cb9	414	struct utp_cmd_rsp {
e8c8e82a SRT	415	__be32 residual_transfer_count;
	416	__be32 reserved[4];
	417	__be16 sense_data_len;
7a3e97b0 SY	418	u8 sense_data[18];
	419	};
	420
5a0b0cb9 SRT	421	/**
	422	* struct utp_upiu_rsp - general upiu response structure
	423	* @header: UPIU header structure DW-0 to DW-2
	424	* @sr: fields structure for scsi command DW-3 to DW-12
68078d5c	425	* @qr: fields structure for query request DW-3 to DW-7
5a0b0cb9 SRT	426	*/
	427	struct utp_upiu_rsp {
	428	struct utp_upiu_header header;
68078d5c DR	429	union {
	430	struct utp_cmd_rsp sr;
	431	struct utp_upiu_query qr;
	432	};
5a0b0cb9 SRT	433	};
5a0b0cb9 SRT	434
7a3e97b0 SY	435	/**
	436	* struct utp_upiu_task_req - Task request UPIU structure
	437	* @header - UPIU header structure DW0 to DW-2
	438	* @input_param1: Input parameter 1 DW-3
	439	* @input_param2: Input parameter 2 DW-4
	440	* @input_param3: Input parameter 3 DW-5
	441	* @reserved: Reserved double words DW-6 to DW-7
	442	*/
	443	struct utp_upiu_task_req {
	444	struct utp_upiu_header header;
e8c8e82a SRT	445	__be32 input_param1;
	446	__be32 input_param2;
	447	__be32 input_param3;
	448	__be32 reserved[2];
7a3e97b0 SY	449	};
	450
	451	/**
	452	* struct utp_upiu_task_rsp - Task Management Response UPIU structure
	453	* @header: UPIU header structure DW0-DW-2
	454	* @output_param1: Ouput parameter 1 DW3
	455	* @output_param2: Output parameter 2 DW4
	456	* @reserved: Reserved double words DW-5 to DW-7
	457	*/
	458	struct utp_upiu_task_rsp {
	459	struct utp_upiu_header header;
e8c8e82a SRT	460	__be32 output_param1;
	461	__be32 output_param2;
	462	__be32 reserved[3];
7a3e97b0 SY	463	};
7a3e97b0 SY	464
68078d5c DR	465	/**
	466	* struct ufs_query_req - parameters for building a query request
	467	* @query_func: UPIU header query function
	468	* @upiu_req: the query request data
	469	*/
	470	struct ufs_query_req {
	471	u8 query_func;
	472	struct utp_upiu_query upiu_req;
	473	};
	474
	475	/**
	476	* struct ufs_query_resp - UPIU QUERY
	477	* @response: device response code
	478	* @upiu_res: query response data
	479	*/
	480	struct ufs_query_res {
	481	u8 response;
	482	struct utp_upiu_query upiu_res;
	483	};
	484
aa497613 SRT	485	#define UFS_VREG_VCC_MIN_UV 2700000 /* uV */
	486	#define UFS_VREG_VCC_MAX_UV 3600000 /* uV */
	487	#define UFS_VREG_VCC_1P8_MIN_UV 1700000 /* uV */
	488	#define UFS_VREG_VCC_1P8_MAX_UV 1950000 /* uV */
	489	#define UFS_VREG_VCCQ_MIN_UV 1100000 /* uV */
	490	#define UFS_VREG_VCCQ_MAX_UV 1300000 /* uV */
	491	#define UFS_VREG_VCCQ2_MIN_UV 1650000 /* uV */
	492	#define UFS_VREG_VCCQ2_MAX_UV 1950000 /* uV */
	493
57d104c1 SJ	494	/*
	495	* VCCQ & VCCQ2 current requirement when UFS device is in sleep state
	496	* and link is in Hibern8 state.
	497	*/
	498	#define UFS_VREG_LPM_LOAD_UA 1000 /* uA */
	499
aa497613 SRT	500	struct ufs_vreg {
	501	struct regulator *reg;
	502	const char *name;
	503	bool enabled;
60f01870	504	bool unused;
aa497613 SRT	505	int min_uV;
	506	int max_uV;
	507	int min_uA;
	508	int max_uA;
	509	};
	510
	511	struct ufs_vreg_info {
	512	struct ufs_vreg *vcc;
	513	struct ufs_vreg *vccq;
	514	struct ufs_vreg *vccq2;
6a771a65	515	struct ufs_vreg *vdd_hba;
aa497613 SRT	516	};
aa497613 SRT	517
57d104c1 SJ	518	struct ufs_dev_info {
	519	bool f_power_on_wp_en;
	520	/* Keeps information if any of the LU is power on write protected */
	521	bool is_lu_power_on_wp;
	522	};
	523
7a3e97b0	524	#endif /* End of Header */