include/emmc_partitions.h - u-boot - Git at Google

 /*
 * Copyright (C) 2017 Amlogic, Inc. All rights reserved.
 * *
 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.
 * *
 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.
 * *
 You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 * *
 Description:
 */

 #ifndef _AML_MMC_H
 #define _AML_MMC_H

 #include <asm/io.h>
 #include <config.h>
 #include <common.h>
 #include <command.h>
 #include <mmc.h>
 #include <part.h>
 #include <malloc.h>
 #include <linux/list.h>
 #include <mmc.h>
 #include <div64.h>
 #include <environment.h>
 #include <malloc.h>
 #include <asm/cache.h>
 #include <asm/arch/clock.h>
 #include<partition_table.h>
 #include <storage.h>
 #include <linux/sizes.h>

 #define     AML_MMC_DBG

 #define     MAX_DEVICE_NUM                  32
 #define     MAX_DEVICE_NAME_LEN             16
 #define     MAX_MMC_PART_NUM                32
 #define     MAX_MMC_PART_NAME_LEN           16

 #define 	MMC_BOOT_PARTITION_SUPPORT		1

 #ifndef CONFIG_AML_MMC_INHERENT_PART
 #define     PARTITION_RESERVED              (8*SZ_1M)  // 8MB
 #define     MMC_BOOT_PARTITION_RESERVED     (32*SZ_1M) // 32MB
 #define     MMC_GPT_RESERVED_PARTITION_RESERVED MMC_BOOT_PARTITION_RESERVED

 #define     MMC_GPT_RESERVED_NAME           "gpt-reserved"
 #define     MMC_GPT_RESERVED_SIZE			(SZ_4M)

 #define     MMC_PARTITION_PROTECT_MASK      0x10      //low 4bit is for nand

 #define     MMC_BOOT_NAME                   "bootloader"
 #define     MMC_BOOT_NAME0                   "bootloader-boot0"
 #define     MMC_BOOT_NAME1                   "bootloader-boot1"
 #define     MMC_BOOT_DEVICE_SIZE            (0x4*SZ_1M)

 #define     MMC_RESERVED_NAME               "reserved"
 // The original "reserved" partition in VIM3 vendor-provided images is 64 MB.
 //
 // Old versions of Fuchsia VIM3 bootloader changed the gap between
 // "gpt-reserved" partition and "reserved" partition from 32MB to 8MB.
 // (see https://third-party-mirror.googlesource.com/u-boot/+/d09e609e5de5e7e87253d05ca05ba32c00fa341b)
 //
 // In order to get the correct "reserved" partition offset, while preserving
 // the partition offset of all Fuchsia-specific partitions (zircon/vbmeta/fvm),
 // we should increase the gap between "gpt-reserved" and "reserved" from 8MB
 // to 32MB, meanwhile we reduce the size of "reserved" partition by 24MB
 // (32MB - 8MB).
 //
 // The "reserved" partition is only used for u-boot virtual partitions and it
 // only takes less than 9MB so far; so it is safe to reduce its size to 40MB
 // without breaking u-boot.
 #define MMC_RESERVED_SIZE 					(64 * SZ_1M - (MMC_GPT_RESERVED_PARTITION_RESERVED - PARTITION_RESERVED))
 #define		MMC_BOTTOM_RSV_SIZE				(0)
 #endif		/* CONFIG_AML_MMC_INHERENT_PART */

 #define     MMC_CACHE_NAME                  "cache"
 // #define     MMC_CACHE_SIZE                  (512*SZ_1M) // this is not used and should be get from spl

 #define     MMC_ENV_NAME                    "env"
 #define     MMC_ENV_SIZE                    (8*SZ_1M)

 #define     MMC_ZIRCON_LOGO_NAME            "logo"
 #define     MMC_ZIRCON_LOGO_SIZE            (8*SZ_1M)

 #define     MMC_ZIRCON_A_NAME               "zircon-a"
 #define     MMC_ZIRCON_A_SIZE               (24*SZ_1M)

 #define     MMC_ZIRCON_B_NAME               "zircon-b"
 #define     MMC_ZIRCON_B_SIZE               (24*SZ_1M)

 #define     MMC_ZIRCON_R_NAME               "zircon-r"
 #define     MMC_ZIRCON_R_SIZE               (24*SZ_1M)

 #define     MMC_ZIRCON_SYS_CONF_NAME        "sys-config"
 #define     MMC_ZIRCON_SYS_CONF_SIZE        (24*SZ_1M)

 #define     MMC_ZIRCON_FVM_NAME              "fvm"
 #define     MMC_ZIRCON_FVM_SIZE              (1024*SZ_1M)

 #define     MMC_KEY_NAME                    "key"
 #define     MMC_KEY_SIZE                    (256*1024)
 #define     EMMCKEY_RESERVE_OFFSET           (0x4000)
 #define     MMC_RESERVED_OFFSET              (36*SZ_1M)
 #define     MMC_BLOCK_SIZE                   (512)
 // #define     MMC_SECURE_NAME                 "secure"
 // #define     MMC_SECURE_SIZE                 (0x1*SZ_1M)

 #define     MMC_MPT_VERSION_1               "01.00.00"
 #define     MMC_MPT_VERSION_2               "01.02.00"
 /* version in use, fixme when kenel driver is updated. */
 #define		MMC_MPT_VERSION					MMC_MPT_VERSION_1

 #define     MMC_PARTITIONS_MAGIC            "MPT" // MMC Partition Table
 #define     MMC_CARD_PARTITION_NAME         "card"

 /* virtual partitions*/

 #define MMC_MBR_NAME    ("AML_MBR")
 /* offset&size of mbr will not be used */
 #define MMC_MBR_OFFSET  (0x0)
 #define MMC_MBR_SIZE    (0x200)

 /*
 * partition table
 * |<----partition_table---->|<----key---->|
 *
 */
 #define MMC_TABLE_NAME		("AML_TABLE")
 #define MMC_TABLE_OFFSET		(0x0)
 #define MMC_TABLE_SIZE		(16*1024)

 /*
 * write 128KB data pattern
 * |<----pattern---->||<------DTB------>|
 */
 #define	MMC_PATTERN_NAME		"pattern"
 #define CALI_PATTERN_OFFSET	(SZ_1M * 3)
 #define CALI_PATTERN_SIZE	(256 * 512)
 #define CALI_BLOCK_SIZE		(512)
 #define CALI_PATTERN		(0x55aa55aa)

 #define	MMC_MAGIC_NAME		"magic"
 #define MAGIC_OFFSET	(SZ_1M * 6)
 #define MAGIC_SIZE	(256 * 512)
 #define MAGIC_BLOCK_SIZE		(512)
 #define MAGIC_PATTERN	(0X00FF00FF)

 #define	MMC_RANDOM_NAME		"random"
 #define RANDOM_OFFSET	(SZ_1M * 7)
 #define RANDOM_SIZE	(256 * 512)
 #define RANDOM_BLOCK_SIZE		(512)
 #define RANDOM_PATTERN	(0X52414E44)

 #define MMC_DDR_PARAMETER_NAME	"ddr-parameter"
 #define DDR_PARAMETER_OFFSET	(SZ_1M * 8)
 #define DDR_PARAMETER_SIZE	(4 * 512)

 /*
  * 2 copies dtb were stored in dtb area.
  * each is 256K.
  * timestamp&checksum are in the tail.
  * |<--------------DTB Area-------------->|
  * |<------DTB1------->|<------DTB2------>|
  */
 #define MMC_DTB_NAME		"dtb"
 #define DTB_OFFSET		(SZ_1M * 4)
 #define DTB_BLK_SIZE		(512)
 #define DTB_BLK_CNT			(512)
 #define DTB_SIZE			(DTB_BLK_CNT * DTB_BLK_SIZE)
 #define DTB_COPIES			(2)
 #define DTB_AREA_BLK_CNT	(DTB_BLK_CNT * DTB_COPIES)
 #define EMMC_DTB_DEV		(1)
 #define EMMC_FASTBOOT_CONTEXT_DEV         (1)

 #define MMC_FASTBOOT_CONTEXT_NAME     "fastboot_context"
 #define FASTBOOT_CONTEXT_OFFSET  (SZ_1M * 5)
 #define FASTBOOT_CONTEXT_SIZE    (512)

 struct virtual_partition {
 	char name[MAX_MMC_PART_NAME_LEN];
 	uint64_t offset;
 	uint64_t size;
 };

 #define VIRTUAL_PARTITION_ELEMENT(na, of, sz) {.name = na, .offset = of, .size = sz,}

 struct aml_pattern {
 	char name[MAX_MMC_PART_NAME_LEN];
 	unsigned int pattern;
 };
 #define AML_PATTERN_ELEMENT(na, pa) {.name = na, .pattern = pa,}

 #ifdef AML_MMC_DBG
 #define aml_mmc_dbg(fmt, ...) printk( "%s: line:%d " fmt "\n", \
                   __func__, __LINE__, ##__VA_ARGS__)

 #define aml_mmc_msg(fmt, ...) printk( "%s: line:%d " fmt "\n", \
                   __func__, __LINE__, ##__VA_ARGS__)
 #else
 #define aml_mmc_dbg(fmt, ...)
 #define aml_mmc_msg(fmt, ...) printk( fmt "\n",  ##__VA_ARGS__)
 #endif

 #define DOS_MBR	0
 #define DOS_PBR	1

 #define DOS_PBR_FSTYPE_OFFSET	0x36
 #define DOS_PBR32_FSTYPE_OFFSET	0x52

 #define DOS_PART_DISKSIG_OFFSET	0x1b8
 #define DOS_PART_TBL_OFFSET	0x1be
 #define DOS_PART_MAGIC_OFFSET	0x1fe
 #define DOS_PBR_MEDIA_TYPE_OFFSET	0x15

 #define DOS_PARTITION_COUNT 32

 typedef struct dos_partition {
 	unsigned char boot_ind;		/* 0x80 - active			*/
 	unsigned char head;		/* starting head			*/
 	unsigned char sector;		/* starting sector			*/
 	unsigned char cyl;		/* starting cylinder			*/
 	unsigned char sys_ind;		/* What partition type			*/
 	unsigned char end_head;		/* end head				*/
 	unsigned char end_sector;	/* end sector				*/
 	unsigned char end_cyl;		/* end cylinder				*/
 	unsigned char start4[4];	/* starting sector counting from 0	*/
 	unsigned char size4[4];		/* nr of sectors in partition		*/
 } dos_partition_t;

 struct dos_mbr_or_ebr{
 	unsigned char bootstart[446];
 	struct dos_partition part_entry[4];
 	unsigned char magic[2];
 };

 struct mmc_partitions_fmt {
     char magic[4];
     unsigned char version[12];
     int part_num;
     int checksum;
     struct partitions partitions[MAX_MMC_PART_NUM];
 };

 struct mmc_partition_config{
     unsigned char version[12];
     int part_num;
     struct partitions partitions[MAX_MMC_PART_NUM];
     unsigned option;
     void * private_data;
 };

 /*
 struct _mmc_device{
     char name[MAX_DEVICE_NAME_LEN];
     uint64_t  offset;
     uint64_t  size;
     void * private_data;
     struct list_head list;
 };
 */

 #define LOCK_MAJOR_VERSION 1
 #define LOCK_MINOR_VERSION 0

 #define LOCK_DATA_SIZE 16

 typedef struct LockData {
 	uint8_t version_major;
 	uint8_t version_minor;

 	/* Padding to eight bytes. */
 	uint8_t reserved1[2];

 	/* 0: unlock    1: lock*/
 	uint8_t lock_state;

 	/* 0: unlock    1: lock*/
 	uint8_t lock_critical_state;

 	/* 0: enable bootloader version rollback 1: prevent bootloader version rollback*/
 	uint8_t lock_bootloader;
 	uint8_t reserved2[1];
 } LockData_t;

 /*512Bytes*/
 typedef struct FastbootContext {
 	/* locks */
 	LockData_t lock;
 	uint8_t rsv[248];
 	/* checksum, storage driver care */
 	uint32_t crc32;
 } FastbootContext_t;

 extern bool is_partition_checked;
 extern struct partitions emmc_partition_table[];

 extern int get_emmc_partition_arraysize(void);

 /*
  * get the partition number by name
  * return value
  *	< 0 means no partition found
  *	>= 0 means valid partition
  */
 extern int get_partition_num_by_name(char *name);

 struct partitions *find_mmc_partition_by_name(const char *name);
 struct partitions *aml_get_partition_by_name(const char *name);
 int mmc_boot_size(char *name, uint64_t* size);
 struct virtual_partition *aml_get_virtual_partition_by_name(const char *name);
 bool aml_is_emmc_tsd (struct mmc *mmc);
 int mmc_device_init (struct mmc *mmc);
 ulong _get_inherent_offset(const char *name);

 #define PARTITION_ELEMENT(na, sz, flags) {.name = na, .size = sz, .mask_flags = flags,}

 #endif
	/*
	* Copyright (C) 2017 Amlogic, Inc. All rights reserved.
	* *
	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.
	* *
	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.
	* *
	You should have received a copy of the GNU General Public License along
	* with this program; if not, write to the Free Software Foundation, Inc.,
	* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
	* *
	Description:
	*/

	#ifndef _AML_MMC_H
	#define _AML_MMC_H

	#include <asm/io.h>
	#include <config.h>
	#include <common.h>
	#include <command.h>
	#include <mmc.h>
	#include <part.h>
	#include <malloc.h>
	#include <linux/list.h>
	#include <mmc.h>
	#include <div64.h>
	#include <environment.h>
	#include <malloc.h>
	#include <asm/cache.h>
	#include <asm/arch/clock.h>
	#include<partition_table.h>
	#include <storage.h>
	#include <linux/sizes.h>

	#define AML_MMC_DBG

	#define MAX_DEVICE_NUM 32
	#define MAX_DEVICE_NAME_LEN 16
	#define MAX_MMC_PART_NUM 32
	#define MAX_MMC_PART_NAME_LEN 16

	#define MMC_BOOT_PARTITION_SUPPORT 1

	#ifndef CONFIG_AML_MMC_INHERENT_PART
	#define PARTITION_RESERVED (8*SZ_1M) // 8MB
	#define MMC_BOOT_PARTITION_RESERVED (32*SZ_1M) // 32MB
	#define MMC_GPT_RESERVED_PARTITION_RESERVED MMC_BOOT_PARTITION_RESERVED

	#define MMC_GPT_RESERVED_NAME "gpt-reserved"
	#define MMC_GPT_RESERVED_SIZE (SZ_4M)

	#define MMC_PARTITION_PROTECT_MASK 0x10 //low 4bit is for nand

	#define MMC_BOOT_NAME "bootloader"
	#define MMC_BOOT_NAME0 "bootloader-boot0"
	#define MMC_BOOT_NAME1 "bootloader-boot1"
	#define MMC_BOOT_DEVICE_SIZE (0x4*SZ_1M)

	#define MMC_RESERVED_NAME "reserved"
	// The original "reserved" partition in VIM3 vendor-provided images is 64 MB.
	//
	// Old versions of Fuchsia VIM3 bootloader changed the gap between
	// "gpt-reserved" partition and "reserved" partition from 32MB to 8MB.
	// (see https://third-party-mirror.googlesource.com/u-boot/+/d09e609e5de5e7e87253d05ca05ba32c00fa341b)
	//
	// In order to get the correct "reserved" partition offset, while preserving
	// the partition offset of all Fuchsia-specific partitions (zircon/vbmeta/fvm),
	// we should increase the gap between "gpt-reserved" and "reserved" from 8MB
	// to 32MB, meanwhile we reduce the size of "reserved" partition by 24MB
	// (32MB - 8MB).
	//
	// The "reserved" partition is only used for u-boot virtual partitions and it
	// only takes less than 9MB so far; so it is safe to reduce its size to 40MB
	// without breaking u-boot.
	#define MMC_RESERVED_SIZE (64 * SZ_1M - (MMC_GPT_RESERVED_PARTITION_RESERVED - PARTITION_RESERVED))
	#define MMC_BOTTOM_RSV_SIZE (0)
	#endif /* CONFIG_AML_MMC_INHERENT_PART */

	#define MMC_CACHE_NAME "cache"
	// #define MMC_CACHE_SIZE (512*SZ_1M) // this is not used and should be get from spl

	#define MMC_ENV_NAME "env"
	#define MMC_ENV_SIZE (8*SZ_1M)

	#define MMC_ZIRCON_LOGO_NAME "logo"
	#define MMC_ZIRCON_LOGO_SIZE (8*SZ_1M)

	#define MMC_ZIRCON_A_NAME "zircon-a"
	#define MMC_ZIRCON_A_SIZE (24*SZ_1M)

	#define MMC_ZIRCON_B_NAME "zircon-b"
	#define MMC_ZIRCON_B_SIZE (24*SZ_1M)

	#define MMC_ZIRCON_R_NAME "zircon-r"
	#define MMC_ZIRCON_R_SIZE (24*SZ_1M)

	#define MMC_ZIRCON_SYS_CONF_NAME "sys-config"
	#define MMC_ZIRCON_SYS_CONF_SIZE (24*SZ_1M)

	#define MMC_ZIRCON_FVM_NAME "fvm"
	#define MMC_ZIRCON_FVM_SIZE (1024*SZ_1M)

	#define MMC_KEY_NAME "key"
	#define MMC_KEY_SIZE (256*1024)
	#define EMMCKEY_RESERVE_OFFSET (0x4000)
	#define MMC_RESERVED_OFFSET (36*SZ_1M)
	#define MMC_BLOCK_SIZE (512)
	// #define MMC_SECURE_NAME "secure"
	// #define MMC_SECURE_SIZE (0x1*SZ_1M)

	#define MMC_MPT_VERSION_1 "01.00.00"
	#define MMC_MPT_VERSION_2 "01.02.00"
	/* version in use, fixme when kenel driver is updated. */
	#define MMC_MPT_VERSION MMC_MPT_VERSION_1

	#define MMC_PARTITIONS_MAGIC "MPT" // MMC Partition Table
	#define MMC_CARD_PARTITION_NAME "card"

	/* virtual partitions*/

	#define MMC_MBR_NAME ("AML_MBR")
	/* offset&size of mbr will not be used */
	#define MMC_MBR_OFFSET (0x0)
	#define MMC_MBR_SIZE (0x200)

	/*
	* partition table
	* \|<----partition_table---->\|<----key---->\|
	*
	*/
	#define MMC_TABLE_NAME ("AML_TABLE")
	#define MMC_TABLE_OFFSET (0x0)
	#define MMC_TABLE_SIZE (16*1024)

	/*
	* write 128KB data pattern
	* \|<----pattern---->\|\|<------DTB------>\|
	*/
	#define MMC_PATTERN_NAME "pattern"
	#define CALI_PATTERN_OFFSET (SZ_1M * 3)
	#define CALI_PATTERN_SIZE (256 * 512)
	#define CALI_BLOCK_SIZE (512)
	#define CALI_PATTERN (0x55aa55aa)

	#define MMC_MAGIC_NAME "magic"
	#define MAGIC_OFFSET (SZ_1M * 6)
	#define MAGIC_SIZE (256 * 512)
	#define MAGIC_BLOCK_SIZE (512)
	#define MAGIC_PATTERN (0X00FF00FF)

	#define MMC_RANDOM_NAME "random"
	#define RANDOM_OFFSET (SZ_1M * 7)
	#define RANDOM_SIZE (256 * 512)
	#define RANDOM_BLOCK_SIZE (512)
	#define RANDOM_PATTERN (0X52414E44)

	#define MMC_DDR_PARAMETER_NAME "ddr-parameter"
	#define DDR_PARAMETER_OFFSET (SZ_1M * 8)
	#define DDR_PARAMETER_SIZE (4 * 512)

	/*
	* 2 copies dtb were stored in dtb area.
	* each is 256K.
	* timestamp&checksum are in the tail.
	* \|<--------------DTB Area-------------->\|
	* \|<------DTB1------->\|<------DTB2------>\|
	*/
	#define MMC_DTB_NAME "dtb"
	#define DTB_OFFSET (SZ_1M * 4)
	#define DTB_BLK_SIZE (512)
	#define DTB_BLK_CNT (512)
	#define DTB_SIZE (DTB_BLK_CNT * DTB_BLK_SIZE)
	#define DTB_COPIES (2)
	#define DTB_AREA_BLK_CNT (DTB_BLK_CNT * DTB_COPIES)
	#define EMMC_DTB_DEV (1)
	#define EMMC_FASTBOOT_CONTEXT_DEV (1)

	#define MMC_FASTBOOT_CONTEXT_NAME "fastboot_context"
	#define FASTBOOT_CONTEXT_OFFSET (SZ_1M * 5)
	#define FASTBOOT_CONTEXT_SIZE (512)

	struct virtual_partition {
	char name[MAX_MMC_PART_NAME_LEN];
	uint64_t offset;
	uint64_t size;
	};

	#define VIRTUAL_PARTITION_ELEMENT(na, of, sz) {.name = na, .offset = of, .size = sz,}

	struct aml_pattern {
	char name[MAX_MMC_PART_NAME_LEN];
	unsigned int pattern;
	};
	#define AML_PATTERN_ELEMENT(na, pa) {.name = na, .pattern = pa,}

	#ifdef AML_MMC_DBG
	#define aml_mmc_dbg(fmt, ...) printk( "%s: line:%d " fmt "\n", \
	__func__, __LINE__, ##__VA_ARGS__)

	#define aml_mmc_msg(fmt, ...) printk( "%s: line:%d " fmt "\n", \
	__func__, __LINE__, ##__VA_ARGS__)
	#else
	#define aml_mmc_dbg(fmt, ...)
	#define aml_mmc_msg(fmt, ...) printk( fmt "\n", ##__VA_ARGS__)
	#endif

	#define DOS_MBR 0
	#define DOS_PBR 1

	#define DOS_PBR_FSTYPE_OFFSET 0x36
	#define DOS_PBR32_FSTYPE_OFFSET 0x52

	#define DOS_PART_DISKSIG_OFFSET 0x1b8
	#define DOS_PART_TBL_OFFSET 0x1be
	#define DOS_PART_MAGIC_OFFSET 0x1fe
	#define DOS_PBR_MEDIA_TYPE_OFFSET 0x15

	#define DOS_PARTITION_COUNT 32

	typedef struct dos_partition {
	unsigned char boot_ind; /* 0x80 - active */
	unsigned char head; /* starting head */
	unsigned char sector; /* starting sector */
	unsigned char cyl; /* starting cylinder */
	unsigned char sys_ind; /* What partition type */
	unsigned char end_head; /* end head */
	unsigned char end_sector; /* end sector */
	unsigned char end_cyl; /* end cylinder */
	unsigned char start4[4]; /* starting sector counting from 0 */
	unsigned char size4[4]; /* nr of sectors in partition */
	} dos_partition_t;

	struct dos_mbr_or_ebr{
	unsigned char bootstart[446];
	struct dos_partition part_entry[4];
	unsigned char magic[2];
	};

	struct mmc_partitions_fmt {
	char magic[4];
	unsigned char version[12];
	int part_num;
	int checksum;
	struct partitions partitions[MAX_MMC_PART_NUM];
	};

	struct mmc_partition_config{
	unsigned char version[12];
	int part_num;
	struct partitions partitions[MAX_MMC_PART_NUM];
	unsigned option;
	void * private_data;
	};

	/*
	struct _mmc_device{
	char name[MAX_DEVICE_NAME_LEN];
	uint64_t offset;
	uint64_t size;
	void * private_data;
	struct list_head list;
	};
	*/

	#define LOCK_MAJOR_VERSION 1
	#define LOCK_MINOR_VERSION 0

	#define LOCK_DATA_SIZE 16

	typedef struct LockData {
	uint8_t version_major;
	uint8_t version_minor;

	/* Padding to eight bytes. */
	uint8_t reserved1[2];

	/* 0: unlock 1: lock*/
	uint8_t lock_state;

	/* 0: unlock 1: lock*/
	uint8_t lock_critical_state;

	/* 0: enable bootloader version rollback 1: prevent bootloader version rollback*/
	uint8_t lock_bootloader;
	uint8_t reserved2[1];
	} LockData_t;

	/512Bytes/
	typedef struct FastbootContext {
	/* locks */
	LockData_t lock;
	uint8_t rsv[248];
	/* checksum, storage driver care */
	uint32_t crc32;
	} FastbootContext_t;

	extern bool is_partition_checked;
	extern struct partitions emmc_partition_table[];

	extern int get_emmc_partition_arraysize(void);

	/*
	* get the partition number by name
	* return value
	* < 0 means no partition found
	* >= 0 means valid partition
	*/
	extern int get_partition_num_by_name(char *name);

	struct partitions find_mmc_partition_by_name(const char name);
	struct partitions aml_get_partition_by_name(const char name);
	int mmc_boot_size(char name, uint64_t size);
	struct virtual_partition aml_get_virtual_partition_by_name(const char name);
	bool aml_is_emmc_tsd (struct mmc *mmc);
	int mmc_device_init (struct mmc *mmc);
	ulong _get_inherent_offset(const char *name);

	#define PARTITION_ELEMENT(na, sz, flags) {.name = na, .size = sz, .mask_flags = flags,}

	#endif