[mirror_ubuntu-artful-kernel.git] / drivers / scsi / ufs / ufshci.h

/*
 * Universal Flash Storage Host controller driver
 *
 * This code is based on drivers/scsi/ufs/ufshci.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 _UFSHCI_H
#define _UFSHCI_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_UFS_VERSION				= 0x08,
	REG_CONTROLLER_DEV_ID			= 0x10,
	REG_CONTROLLER_PROD_ID			= 0x14,
	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,
};

/* Controller capability masks */
enum {
	MASK_TRANSFER_REQUESTS_SLOTS		= 0x0000001F,
	MASK_TASK_MANAGEMENT_REQUEST_SLOTS	= 0x00070000,
	MASK_64_ADDRESSING_SUPPORT		= 0x01000000,
	MASK_OUT_OF_ORDER_DATA_DELIVERY_SUPPORT	= 0x02000000,
	MASK_UIC_DME_TEST_MODE_SUPPORT		= 0x04000000,
};

/* UFS Version 08h */
#define MINOR_VERSION_NUM_MASK		UFS_MASK(0xFFFF, 0)
#define MAJOR_VERSION_NUM_MASK		UFS_MASK(0xFFFF, 16)

/* Controller UFSHCI version */
enum {
	UFSHCI_VERSION_10 = 0x00010000,
	UFSHCI_VERSION_11 = 0x00010100,
};

/*
 * 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)

#define UFS_BIT(x)	(1L << (x))

#define UTP_TRANSFER_REQ_COMPL			UFS_BIT(0)
#define UIC_DME_END_PT_RESET			UFS_BIT(1)
#define UIC_ERROR				UFS_BIT(2)
#define UIC_TEST_MODE				UFS_BIT(3)
#define UIC_POWER_MODE				UFS_BIT(4)
#define UIC_HIBERNATE_EXIT			UFS_BIT(5)
#define UIC_HIBERNATE_ENTER			UFS_BIT(6)
#define UIC_LINK_LOST				UFS_BIT(7)
#define UIC_LINK_STARTUP			UFS_BIT(8)
#define UTP_TASK_REQ_COMPL			UFS_BIT(9)
#define UIC_COMMAND_COMPL			UFS_BIT(10)
#define DEVICE_FATAL_ERROR			UFS_BIT(11)
#define CONTROLLER_FATAL_ERROR			UFS_BIT(16)
#define SYSTEM_BUS_FATAL_ERROR			UFS_BIT(17)

#define UFSHCD_UIC_PWR_MASK	(UIC_HIBERNATE_ENTER |\
				UIC_HIBERNATE_EXIT |\
				UIC_POWER_MODE)

#define UFSHCD_UIC_MASK		(UIC_COMMAND_COMPL | UFSHCD_UIC_PWR_MASK)

#define UFSHCD_ERROR_MASK	(UIC_ERROR |\
				DEVICE_FATAL_ERROR |\
				CONTROLLER_FATAL_ERROR |\
				SYSTEM_BUS_FATAL_ERROR)

#define INT_FATAL_ERRORS	(DEVICE_FATAL_ERROR |\
				CONTROLLER_FATAL_ERROR |\
				SYSTEM_BUS_FATAL_ERROR)

/* HCS - Host Controller Status 30h */
#define DEVICE_PRESENT				UFS_BIT(0)
#define UTP_TRANSFER_REQ_LIST_READY		UFS_BIT(1)
#define UTP_TASK_REQ_LIST_READY			UFS_BIT(2)
#define UIC_COMMAND_READY			UFS_BIT(3)
#define HOST_ERROR_INDICATOR			UFS_BIT(4)
#define DEVICE_ERROR_INDICATOR			UFS_BIT(5)
#define UIC_POWER_MODE_CHANGE_REQ_STATUS_MASK	UFS_MASK(0x7, 8)

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	UFS_BIT(0)
#define CONTROLLER_DISABLE	0x0

/* UECPA - Host UIC Error Code PHY Adapter Layer 38h */
#define UIC_PHY_ADAPTER_LAYER_ERROR			UFS_BIT(31)
#define UIC_PHY_ADAPTER_LAYER_ERROR_CODE_MASK		0x1F

/* UECDL - Host UIC Error Code Data Link Layer 3Ch */
#define UIC_DATA_LINK_LAYER_ERROR		UFS_BIT(31)
#define UIC_DATA_LINK_LAYER_ERROR_CODE_MASK	0x7FFF
#define UIC_DATA_LINK_LAYER_ERROR_PA_INIT	0x2000

/* UECN - Host UIC Error Code Network Layer 40h */
#define UIC_NETWORK_LAYER_ERROR			UFS_BIT(31)
#define UIC_NETWORK_LAYER_ERROR_CODE_MASK	0x7

/* UECT - Host UIC Error Code Transport Layer 44h */
#define UIC_TRANSPORT_LAYER_ERROR		UFS_BIT(31)
#define UIC_TRANSPORT_LAYER_ERROR_CODE_MASK	0x7F

/* UECDME - Host UIC Error Code DME 48h */
#define UIC_DME_ERROR			UFS_BIT(31)
#define UIC_DME_ERROR_CODE_MASK		0x1

#define INT_AGGR_TIMEOUT_VAL_MASK		0xFF
#define INT_AGGR_COUNTER_THRESHOLD_MASK		UFS_MASK(0x1F, 8)
#define INT_AGGR_COUNTER_AND_TIMER_RESET	UFS_BIT(16)
#define INT_AGGR_STATUS_BIT			UFS_BIT(20)
#define INT_AGGR_PARAM_WRITE			UFS_BIT(24)
#define INT_AGGR_ENABLE				UFS_BIT(31)

/* UTRLRSR - UTP Transfer Request Run-Stop Register 60h */
#define UTP_TRANSFER_REQ_LIST_RUN_STOP_BIT	UFS_BIT(0)

/* UTMRLRSR - UTP Task Management Request Run-Stop Register 80h */
#define UTP_TASK_REQ_LIST_RUN_STOP_BIT		UFS_BIT(0)

/* 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

#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)

/* 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 v1.0 */
	INTERRUPT_MASK_ALL_VER_10	= 0x30FFF,
	INTERRUPT_MASK_RW_VER_10	= 0x30000,

	/* Interrupt disable mask for UFSHCI v1.1 */
	INTERRUPT_MASK_ALL_VER_11	= 0x31FFF,
};

/*
 * Request Descriptor Definitions
 */

/* Transfer request command type */
enum {
	UTP_CMD_TYPE_SCSI		= 0x0,
	UTP_CMD_TYPE_UFS		= 0x1,
	UTP_CMD_TYPE_DEV_MANAGE		= 0x2,
};

enum {
	UTP_SCSI_COMMAND		= 0x00000000,
	UTP_NATIVE_UFS_COMMAND		= 0x10000000,
	UTP_DEVICE_MANAGEMENT_FUNCTION	= 0x20000000,
	UTP_REQ_DESC_INT_CMD		= 0x01000000,
};

/* UTP Transfer Request Data Direction (DD) */
enum {
	UTP_NO_DATA_TRANSFER	= 0x00000000,
	UTP_HOST_TO_DEVICE	= 0x02000000,
	UTP_DEVICE_TO_HOST	= 0x04000000,
};

/* Overall command status values */
enum {
	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_INVALID_COMMAND_STATUS	= 0x0F,
	MASK_OCS			= 0x0F,
};

/* The maximum length of the data byte count field in the PRDT is 256KB */
#define PRDT_DATA_BYTE_COUNT_MAX	(256 * 1024)
/* 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
 * @base_addr: Lower 32bit physical address DW-0
 * @upper_addr: Upper 32bit physical address DW-1
 * @reserved: Reserved for future use DW-2
 * @size: size of physical segment DW-3
 */
struct ufshcd_sg_entry {
	__le32    base_addr;
	__le32    upper_addr;
	__le32    reserved;
	__le32    size;
};

/**
 * struct utp_transfer_cmd_desc - UFS Command Descriptor structure
 * @command_upiu: Command UPIU Frame address
 * @response_upiu: Response UPIU Frame address
 * @prd_table: Physical Region Descriptor
 */
struct utp_transfer_cmd_desc {
	u8 command_upiu[ALIGNED_UPIU_SIZE];
	u8 response_upiu[ALIGNED_UPIU_SIZE];
	struct ufshcd_sg_entry    prd_table[SG_ALL];
};

/**
 * struct request_desc_header - Descriptor Header common to both UTRD and UTMRD
 * @dword0: Descriptor Header DW0
 * @dword1: Descriptor Header DW1
 * @dword2: Descriptor Header DW2
 * @dword3: Descriptor Header DW3
 */
struct request_desc_header {
	__le32 dword_0;
	__le32 dword_1;
	__le32 dword_2;
	__le32 dword_3;
};

/**
 * struct utp_transfer_req_desc - UTRD structure
 * @header: UTRD header DW-0 to DW-3
 * @command_desc_base_addr_lo: UCD base address low DW-4
 * @command_desc_base_addr_hi: UCD base address high DW-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*/
	__le32  command_desc_base_addr_lo;
	__le32  command_desc_base_addr_hi;

	/* DW 6 */
	__le16  response_upiu_length;
	__le16  response_upiu_offset;

	/* DW 7 */
	__le16  prd_table_length;
	__le16  prd_table_offset;
};

/**
 * struct utp_task_req_desc - UTMRD structure
 * @header: UTMRD header DW-0 to DW-3
 * @task_req_upiu: Pointer to task request UPIU DW-4 to DW-11
 * @task_rsp_upiu: Pointer to task response UPIU DW12 to DW-19
 */
struct utp_task_req_desc {

	/* DW 0-3 */
	struct request_desc_header header;

	/* DW 4-11 */
	__le32 task_req_upiu[TASK_REQ_UPIU_SIZE_DWORDS];

	/* DW 12-19 */
	__le32 task_rsp_upiu[TASK_RSP_UPIU_SIZE_DWORDS];
};

#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/ufshci.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 _UFSHCI_H
	37	#define _UFSHCI_H
	38
	39	enum {
	40	TASK_REQ_UPIU_SIZE_DWORDS = 8,
	41	TASK_RSP_UPIU_SIZE_DWORDS = 8,
68078d5c	42	ALIGNED_UPIU_SIZE = 512,
7a3e97b0 SY	43	};
	44
	45	/* UFSHCI Registers */
	46	enum {
	47	REG_CONTROLLER_CAPABILITIES = 0x00,
	48	REG_UFS_VERSION = 0x08,
	49	REG_CONTROLLER_DEV_ID = 0x10,
	50	REG_CONTROLLER_PROD_ID = 0x14,
	51	REG_INTERRUPT_STATUS = 0x20,
	52	REG_INTERRUPT_ENABLE = 0x24,
	53	REG_CONTROLLER_STATUS = 0x30,
	54	REG_CONTROLLER_ENABLE = 0x34,
	55	REG_UIC_ERROR_CODE_PHY_ADAPTER_LAYER = 0x38,
	56	REG_UIC_ERROR_CODE_DATA_LINK_LAYER = 0x3C,
	57	REG_UIC_ERROR_CODE_NETWORK_LAYER = 0x40,
	58	REG_UIC_ERROR_CODE_TRANSPORT_LAYER = 0x44,
	59	REG_UIC_ERROR_CODE_DME = 0x48,
	60	REG_UTP_TRANSFER_REQ_INT_AGG_CONTROL = 0x4C,
	61	REG_UTP_TRANSFER_REQ_LIST_BASE_L = 0x50,
	62	REG_UTP_TRANSFER_REQ_LIST_BASE_H = 0x54,
	63	REG_UTP_TRANSFER_REQ_DOOR_BELL = 0x58,
	64	REG_UTP_TRANSFER_REQ_LIST_CLEAR = 0x5C,
	65	REG_UTP_TRANSFER_REQ_LIST_RUN_STOP = 0x60,
	66	REG_UTP_TASK_REQ_LIST_BASE_L = 0x70,
	67	REG_UTP_TASK_REQ_LIST_BASE_H = 0x74,
	68	REG_UTP_TASK_REQ_DOOR_BELL = 0x78,
	69	REG_UTP_TASK_REQ_LIST_CLEAR = 0x7C,
	70	REG_UTP_TASK_REQ_LIST_RUN_STOP = 0x80,
	71	REG_UIC_COMMAND = 0x90,
	72	REG_UIC_COMMAND_ARG_1 = 0x94,
	73	REG_UIC_COMMAND_ARG_2 = 0x98,
	74	REG_UIC_COMMAND_ARG_3 = 0x9C,
	75	};
	76
	77	/* Controller capability masks */
	78	enum {
	79	MASK_TRANSFER_REQUESTS_SLOTS = 0x0000001F,
	80	MASK_TASK_MANAGEMENT_REQUEST_SLOTS = 0x00070000,
	81	MASK_64_ADDRESSING_SUPPORT = 0x01000000,
	82	MASK_OUT_OF_ORDER_DATA_DELIVERY_SUPPORT = 0x02000000,
	83	MASK_UIC_DME_TEST_MODE_SUPPORT = 0x04000000,
	84	};
	85
	86	/* UFS Version 08h */
	87	#define MINOR_VERSION_NUM_MASK UFS_MASK(0xFFFF, 0)
	88	#define MAJOR_VERSION_NUM_MASK UFS_MASK(0xFFFF, 16)
	89
	90	/* Controller UFSHCI version */
	91	enum {
	92	UFSHCI_VERSION_10 = 0x00010000,
	93	UFSHCI_VERSION_11 = 0x00010100,
	94	};
	95
	96	/*
	97	* HCDDID - Host Controller Identification Descriptor
	98	* - Device ID and Device Class 10h
	99	*/
	100	#define DEVICE_CLASS UFS_MASK(0xFFFF, 0)
	101	#define DEVICE_ID UFS_MASK(0xFF, 24)
	102
	103	/*
	104	* HCPMID - Host Controller Identification Descriptor
	105	* - Product/Manufacturer ID 14h
	106	*/
107	#define MANUFACTURE_ID_MASK UFS_MASK(0xFFFF, 0)
108	#define PRODUCT_ID_MASK UFS_MASK(0xFFFF, 16)
109
110	#define UFS_BIT(x) (1L << (x))
111
112	#define UTP_TRANSFER_REQ_COMPL UFS_BIT(0)
113	#define UIC_DME_END_PT_RESET UFS_BIT(1)
114	#define UIC_ERROR UFS_BIT(2)
115	#define UIC_TEST_MODE UFS_BIT(3)
116	#define UIC_POWER_MODE UFS_BIT(4)
117	#define UIC_HIBERNATE_EXIT UFS_BIT(5)
118	#define UIC_HIBERNATE_ENTER UFS_BIT(6)
119	#define UIC_LINK_LOST UFS_BIT(7)
120	#define UIC_LINK_STARTUP UFS_BIT(8)
121	#define UTP_TASK_REQ_COMPL UFS_BIT(9)
122	#define UIC_COMMAND_COMPL UFS_BIT(10)
123	#define DEVICE_FATAL_ERROR UFS_BIT(11)
124	#define CONTROLLER_FATAL_ERROR UFS_BIT(16)
125	#define SYSTEM_BUS_FATAL_ERROR UFS_BIT(17)
126
57d104c1 SJ	127	#define UFSHCD_UIC_PWR_MASK (UIC_HIBERNATE_ENTER \|\
	128	UIC_HIBERNATE_EXIT \|\
	129	UIC_POWER_MODE)
	130
	131	#define UFSHCD_UIC_MASK (UIC_COMMAND_COMPL \| UFSHCD_UIC_PWR_MASK)
53b3d9c3	132
7a3e97b0 SY	133	#define UFSHCD_ERROR_MASK (UIC_ERROR \|\
	134	DEVICE_FATAL_ERROR \|\
	135	CONTROLLER_FATAL_ERROR \|\
	136	SYSTEM_BUS_FATAL_ERROR)
	137
	138	#define INT_FATAL_ERRORS (DEVICE_FATAL_ERROR \|\
	139	CONTROLLER_FATAL_ERROR \|\
	140	SYSTEM_BUS_FATAL_ERROR)
	141
	142	/* HCS - Host Controller Status 30h */
	143	#define DEVICE_PRESENT UFS_BIT(0)
	144	#define UTP_TRANSFER_REQ_LIST_READY UFS_BIT(1)
	145	#define UTP_TASK_REQ_LIST_READY UFS_BIT(2)
	146	#define UIC_COMMAND_READY UFS_BIT(3)
	147	#define HOST_ERROR_INDICATOR UFS_BIT(4)
	148	#define DEVICE_ERROR_INDICATOR UFS_BIT(5)
	149	#define UIC_POWER_MODE_CHANGE_REQ_STATUS_MASK UFS_MASK(0x7, 8)
	150
53b3d9c3 SJ	151	enum {
	152	PWR_OK = 0x0,
	153	PWR_LOCAL = 0x01,
	154	PWR_REMOTE = 0x02,
	155	PWR_BUSY = 0x03,
	156	PWR_ERROR_CAP = 0x04,
	157	PWR_FATAL_ERROR = 0x05,
	158	};
	159
7a3e97b0 SY	160	/* HCE - Host Controller Enable 34h */
	161	#define CONTROLLER_ENABLE UFS_BIT(0)
	162	#define CONTROLLER_DISABLE 0x0
	163
	164	/* UECPA - Host UIC Error Code PHY Adapter Layer 38h */
	165	#define UIC_PHY_ADAPTER_LAYER_ERROR UFS_BIT(31)
	166	#define UIC_PHY_ADAPTER_LAYER_ERROR_CODE_MASK 0x1F
	167
	168	/* UECDL - Host UIC Error Code Data Link Layer 3Ch */
	169	#define UIC_DATA_LINK_LAYER_ERROR UFS_BIT(31)
	170	#define UIC_DATA_LINK_LAYER_ERROR_CODE_MASK 0x7FFF
	171	#define UIC_DATA_LINK_LAYER_ERROR_PA_INIT 0x2000
	172
	173	/* UECN - Host UIC Error Code Network Layer 40h */
	174	#define UIC_NETWORK_LAYER_ERROR UFS_BIT(31)
	175	#define UIC_NETWORK_LAYER_ERROR_CODE_MASK 0x7
	176
	177	/* UECT - Host UIC Error Code Transport Layer 44h */
	178	#define UIC_TRANSPORT_LAYER_ERROR UFS_BIT(31)
	179	#define UIC_TRANSPORT_LAYER_ERROR_CODE_MASK 0x7F
	180
	181	/* UECDME - Host UIC Error Code DME 48h */
	182	#define UIC_DME_ERROR UFS_BIT(31)
	183	#define UIC_DME_ERROR_CODE_MASK 0x1
	184
	185	#define INT_AGGR_TIMEOUT_VAL_MASK 0xFF
	186	#define INT_AGGR_COUNTER_THRESHOLD_MASK UFS_MASK(0x1F, 8)
	187	#define INT_AGGR_COUNTER_AND_TIMER_RESET UFS_BIT(16)
	188	#define INT_AGGR_STATUS_BIT UFS_BIT(20)
	189	#define INT_AGGR_PARAM_WRITE UFS_BIT(24)
	190	#define INT_AGGR_ENABLE UFS_BIT(31)
	191
	192	/* UTRLRSR - UTP Transfer Request Run-Stop Register 60h */
	193	#define UTP_TRANSFER_REQ_LIST_RUN_STOP_BIT UFS_BIT(0)
	194
	195	/* UTMRLRSR - UTP Task Management Request Run-Stop Register 80h */
	196	#define UTP_TASK_REQ_LIST_RUN_STOP_BIT UFS_BIT(0)
	197
	198	/* UICCMD - UIC Command */
	199	#define COMMAND_OPCODE_MASK 0xFF
	200	#define GEN_SELECTOR_INDEX_MASK 0xFFFF
	201
	202	#define MIB_ATTRIBUTE_MASK UFS_MASK(0xFFFF, 16)
	203	#define RESET_LEVEL 0xFF
	204
	205	#define ATTR_SET_TYPE_MASK UFS_MASK(0xFF, 16)
	206	#define CONFIG_RESULT_CODE_MASK 0xFF
	207	#define GENERIC_ERROR_CODE_MASK 0xFF
	208
12b4fdb4 SJ	209	#define UIC_ARG_MIB_SEL(attr, sel) ((((attr) & 0xFFFF) << 16) \|\
	210	((sel) & 0xFFFF))
	211	#define UIC_ARG_MIB(attr) UIC_ARG_MIB_SEL(attr, 0)
	212	#define UIC_ARG_ATTR_TYPE(t) (((t) & 0xFF) << 16)
	213	#define UIC_GET_ATTR_ID(v) (((v) >> 16) & 0xFFFF)
	214
7a3e97b0	215	/* UIC Commands */
57d104c1	216	enum uic_cmd_dme {
7a3e97b0 SY	217	UIC_CMD_DME_GET = 0x01,
	218	UIC_CMD_DME_SET = 0x02,
	219	UIC_CMD_DME_PEER_GET = 0x03,
	220	UIC_CMD_DME_PEER_SET = 0x04,
	221	UIC_CMD_DME_POWERON = 0x10,
	222	UIC_CMD_DME_POWEROFF = 0x11,
	223	UIC_CMD_DME_ENABLE = 0x12,
	224	UIC_CMD_DME_RESET = 0x14,
	225	UIC_CMD_DME_END_PT_RST = 0x15,
	226	UIC_CMD_DME_LINK_STARTUP = 0x16,
	227	UIC_CMD_DME_HIBER_ENTER = 0x17,
	228	UIC_CMD_DME_HIBER_EXIT = 0x18,
	229	UIC_CMD_DME_TEST_MODE = 0x1A,
	230	};
	231
	232	/* UIC Config result code / Generic error code */
	233	enum {
	234	UIC_CMD_RESULT_SUCCESS = 0x00,
	235	UIC_CMD_RESULT_INVALID_ATTR = 0x01,
	236	UIC_CMD_RESULT_FAILURE = 0x01,
	237	UIC_CMD_RESULT_INVALID_ATTR_VALUE = 0x02,
	238	UIC_CMD_RESULT_READ_ONLY_ATTR = 0x03,
	239	UIC_CMD_RESULT_WRITE_ONLY_ATTR = 0x04,
	240	UIC_CMD_RESULT_BAD_INDEX = 0x05,
	241	UIC_CMD_RESULT_LOCKED_ATTR = 0x06,
	242	UIC_CMD_RESULT_BAD_TEST_FEATURE_INDEX = 0x07,
	243	UIC_CMD_RESULT_PEER_COMM_FAILURE = 0x08,
	244	UIC_CMD_RESULT_BUSY = 0x09,
	245	UIC_CMD_RESULT_DME_FAILURE = 0x0A,
	246	};
	247
	248	#define MASK_UIC_COMMAND_RESULT 0xFF
	249
7d568652 SJ	250	#define INT_AGGR_COUNTER_THLD_VAL(c) (((c) & 0x1F) << 8)
7d568652 SJ	251	#define INT_AGGR_TIMEOUT_VAL(t) (((t) & 0xFF) << 0)
7a3e97b0 SY	252
	253	/* Interrupt disable masks */
	254	enum {
	255	/* Interrupt disable mask for UFSHCI v1.0 */
2fbd009b SJ	256	INTERRUPT_MASK_ALL_VER_10 = 0x30FFF,
2fbd009b SJ	257	INTERRUPT_MASK_RW_VER_10 = 0x30000,
7a3e97b0 SY	258
7a3e97b0 SY	259	/* Interrupt disable mask for UFSHCI v1.1 */
2fbd009b	260	INTERRUPT_MASK_ALL_VER_11 = 0x31FFF,
7a3e97b0 SY	261	};
	262
	263	/*
	264	* Request Descriptor Definitions
	265	*/
	266
	267	/* Transfer request command type */
	268	enum {
	269	UTP_CMD_TYPE_SCSI = 0x0,
	270	UTP_CMD_TYPE_UFS = 0x1,
	271	UTP_CMD_TYPE_DEV_MANAGE = 0x2,
	272	};
	273
	274	enum {
	275	UTP_SCSI_COMMAND = 0x00000000,
	276	UTP_NATIVE_UFS_COMMAND = 0x10000000,
	277	UTP_DEVICE_MANAGEMENT_FUNCTION = 0x20000000,
	278	UTP_REQ_DESC_INT_CMD = 0x01000000,
	279	};
	280
	281	/* UTP Transfer Request Data Direction (DD) */
	282	enum {
	283	UTP_NO_DATA_TRANSFER = 0x00000000,
	284	UTP_HOST_TO_DEVICE = 0x02000000,
	285	UTP_DEVICE_TO_HOST = 0x04000000,
	286	};
	287
	288	/* Overall command status values */
	289	enum {
	290	OCS_SUCCESS = 0x0,
	291	OCS_INVALID_CMD_TABLE_ATTR = 0x1,
	292	OCS_INVALID_PRDT_ATTR = 0x2,
	293	OCS_MISMATCH_DATA_BUF_SIZE = 0x3,
	294	OCS_MISMATCH_RESP_UPIU_SIZE = 0x4,
	295	OCS_PEER_COMM_FAILURE = 0x5,
	296	OCS_ABORTED = 0x6,
	297	OCS_FATAL_ERROR = 0x7,
	298	OCS_INVALID_COMMAND_STATUS = 0x0F,
	299	MASK_OCS = 0x0F,
	300	};
	301
eeda4749 AM	302	/* The maximum length of the data byte count field in the PRDT is 256KB */
	303	#define PRDT_DATA_BYTE_COUNT_MAX (256 * 1024)
	304	/* The granularity of the data byte count field in the PRDT is 32-bit */
	305	#define PRDT_DATA_BYTE_COUNT_PAD 4
	306
7a3e97b0 SY	307	/**
	308	* struct ufshcd_sg_entry - UFSHCI PRD Entry
	309	* @base_addr: Lower 32bit physical address DW-0
	310	* @upper_addr: Upper 32bit physical address DW-1
	311	* @reserved: Reserved for future use DW-2
	312	* @size: size of physical segment DW-3
	313	*/
	314	struct ufshcd_sg_entry {
e8c8e82a SRT	315	__le32 base_addr;
	316	__le32 upper_addr;
	317	__le32 reserved;
	318	__le32 size;
7a3e97b0 SY	319	};
	320
	321	/**
	322	* struct utp_transfer_cmd_desc - UFS Command Descriptor structure
	323	* @command_upiu: Command UPIU Frame address
	324	* @response_upiu: Response UPIU Frame address
	325	* @prd_table: Physical Region Descriptor
	326	*/
	327	struct utp_transfer_cmd_desc {
	328	u8 command_upiu[ALIGNED_UPIU_SIZE];
	329	u8 response_upiu[ALIGNED_UPIU_SIZE];
	330	struct ufshcd_sg_entry prd_table[SG_ALL];
	331	};
	332
	333	/**
	334	* struct request_desc_header - Descriptor Header common to both UTRD and UTMRD
	335	* @dword0: Descriptor Header DW0
	336	* @dword1: Descriptor Header DW1
	337	* @dword2: Descriptor Header DW2
	338	* @dword3: Descriptor Header DW3
	339	*/
	340	struct request_desc_header {
e8c8e82a SRT	341	__le32 dword_0;
	342	__le32 dword_1;
	343	__le32 dword_2;
	344	__le32 dword_3;
7a3e97b0 SY	345	};
	346
	347	/**
	348	* struct utp_transfer_req_desc - UTRD structure
	349	* @header: UTRD header DW-0 to DW-3
	350	* @command_desc_base_addr_lo: UCD base address low DW-4
	351	* @command_desc_base_addr_hi: UCD base address high DW-5
	352	* @response_upiu_length: response UPIU length DW-6
	353	* @response_upiu_offset: response UPIU offset DW-6
	354	* @prd_table_length: Physical region descriptor length DW-7
	355	* @prd_table_offset: Physical region descriptor offset DW-7
	356	*/
	357	struct utp_transfer_req_desc {
	358
	359	/* DW 0-3 */
	360	struct request_desc_header header;
	361
	362	/* DW 4-5*/
e8c8e82a SRT	363	__le32 command_desc_base_addr_lo;
e8c8e82a SRT	364	__le32 command_desc_base_addr_hi;
7a3e97b0 SY	365
7a3e97b0 SY	366	/* DW 6 */
e8c8e82a SRT	367	__le16 response_upiu_length;
e8c8e82a SRT	368	__le16 response_upiu_offset;
7a3e97b0 SY	369
7a3e97b0 SY	370	/* DW 7 */
e8c8e82a SRT	371	__le16 prd_table_length;
e8c8e82a SRT	372	__le16 prd_table_offset;
7a3e97b0 SY	373	};
	374
	375	/**
	376	* struct utp_task_req_desc - UTMRD structure
	377	* @header: UTMRD header DW-0 to DW-3
	378	* @task_req_upiu: Pointer to task request UPIU DW-4 to DW-11
	379	* @task_rsp_upiu: Pointer to task response UPIU DW12 to DW-19
	380	*/
	381	struct utp_task_req_desc {
	382
	383	/* DW 0-3 */
	384	struct request_desc_header header;
	385
	386	/* DW 4-11 */
e8c8e82a	387	__le32 task_req_upiu[TASK_REQ_UPIU_SIZE_DWORDS];
7a3e97b0 SY	388
7a3e97b0 SY	389	/* DW 12-19 */
e8c8e82a	390	__le32 task_rsp_upiu[TASK_RSP_UPIU_SIZE_DWORDS];
7a3e97b0 SY	391	};
	392
	393	#endif /* End of Header */