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      1 /* SPDX-License-Identifier: GPL-2.0+ */
      2 /*
      3  * (C) Copyright 2009
      4  * Stefano Babic, DENX Software Engineering, sbabic (at) denx.de.
      5  */
      6 
      7 #ifndef _IMXIMAGE_H_
      8 #define _IMXIMAGE_H_
      9 
     10 #define MAX_HW_CFG_SIZE_V2 220 /* Max number of registers imx can set for v2 */
     11 #define MAX_PLUGIN_CODE_SIZE (64 * 1024)
     12 #define MAX_HW_CFG_SIZE_V1 60  /* Max number of registers imx can set for v1 */
     13 #define APP_CODE_BARKER	0xB1
     14 #define DCD_BARKER	0xB17219E9
     15 
     16 /* Specify the offset of the IVT in the IMX header as expected by BootROM */
     17 #define BOOTROM_IVT_HDR_OFFSET	0xC00
     18 
     19 /*
     20  * NOTE: This file must be kept in sync with arch/arm/include/asm/\
     21  *       mach-imx/imximage.cfg because tools/imximage.c can not
     22  *       cross-include headers from arch/arm/ and vice-versa.
     23  */
     24 #define CMD_DATA_STR	"DATA"
     25 
     26 /* Initial Vector Table Offset */
     27 #define FLASH_OFFSET_UNDEFINED	0xFFFFFFFF
     28 #define FLASH_OFFSET_STANDARD	0x400
     29 #define FLASH_OFFSET_NAND	FLASH_OFFSET_STANDARD
     30 #define FLASH_OFFSET_SD		FLASH_OFFSET_STANDARD
     31 #define FLASH_OFFSET_SPI	FLASH_OFFSET_STANDARD
     32 #define FLASH_OFFSET_ONENAND	0x100
     33 #define FLASH_OFFSET_NOR	0x1000
     34 #define FLASH_OFFSET_SATA	FLASH_OFFSET_STANDARD
     35 #define FLASH_OFFSET_QSPI	0x1000
     36 
     37 /* Initial Load Region Size */
     38 #define FLASH_LOADSIZE_UNDEFINED	0xFFFFFFFF
     39 #define FLASH_LOADSIZE_STANDARD		0x1000
     40 #define FLASH_LOADSIZE_NAND		FLASH_LOADSIZE_STANDARD
     41 #define FLASH_LOADSIZE_SD		FLASH_LOADSIZE_STANDARD
     42 #define FLASH_LOADSIZE_SPI		FLASH_LOADSIZE_STANDARD
     43 #define FLASH_LOADSIZE_ONENAND		0x400
     44 #define FLASH_LOADSIZE_NOR		0x0 /* entire image */
     45 #define FLASH_LOADSIZE_SATA		FLASH_LOADSIZE_STANDARD
     46 #define FLASH_LOADSIZE_QSPI		0x0 /* entire image */
     47 
     48 /* Command tags and parameters */
     49 #define IVT_HEADER_TAG			0xD1
     50 #define IVT_VERSION			0x40
     51 #define DCD_HEADER_TAG			0xD2
     52 #define DCD_VERSION			0x40
     53 #define DCD_WRITE_DATA_COMMAND_TAG	0xCC
     54 #define DCD_WRITE_DATA_PARAM		0x4
     55 #define DCD_WRITE_CLR_BIT_PARAM		0xC
     56 #define DCD_WRITE_SET_BIT_PARAM		0x1C
     57 #define DCD_CHECK_DATA_COMMAND_TAG	0xCF
     58 #define DCD_CHECK_BITS_SET_PARAM	0x14
     59 #define DCD_CHECK_BITS_CLR_PARAM	0x04
     60 
     61 #ifndef __ASSEMBLY__
     62 enum imximage_cmd {
     63 	CMD_INVALID,
     64 	CMD_IMAGE_VERSION,
     65 	CMD_BOOT_FROM,
     66 	CMD_BOOT_OFFSET,
     67 	CMD_WRITE_DATA,
     68 	CMD_WRITE_CLR_BIT,
     69 	CMD_WRITE_SET_BIT,
     70 	CMD_CHECK_BITS_SET,
     71 	CMD_CHECK_BITS_CLR,
     72 	CMD_CSF,
     73 	CMD_PLUGIN,
     74 };
     75 
     76 enum imximage_fld_types {
     77 	CFG_INVALID = -1,
     78 	CFG_COMMAND,
     79 	CFG_REG_SIZE,
     80 	CFG_REG_ADDRESS,
     81 	CFG_REG_VALUE
     82 };
     83 
     84 enum imximage_version {
     85 	IMXIMAGE_VER_INVALID = -1,
     86 	IMXIMAGE_V1 = 1,
     87 	IMXIMAGE_V2
     88 };
     89 
     90 typedef struct {
     91 	uint32_t type; /* Type of pointer (byte, halfword, word, wait/read) */
     92 	uint32_t addr; /* Address to write to */
     93 	uint32_t value; /* Data to write */
     94 } dcd_type_addr_data_t;
     95 
     96 typedef struct {
     97 	uint32_t barker; /* Barker for sanity check */
     98 	uint32_t length; /* Device configuration length (without preamble) */
     99 } dcd_preamble_t;
    100 
    101 typedef struct {
    102 	dcd_preamble_t preamble;
    103 	dcd_type_addr_data_t addr_data[MAX_HW_CFG_SIZE_V1];
    104 } dcd_v1_t;
    105 
    106 typedef struct {
    107 	uint32_t app_code_jump_vector;
    108 	uint32_t app_code_barker;
    109 	uint32_t app_code_csf;
    110 	uint32_t dcd_ptr_ptr;
    111 	uint32_t super_root_key;
    112 	uint32_t dcd_ptr;
    113 	uint32_t app_dest_ptr;
    114 } flash_header_v1_t;
    115 
    116 typedef struct {
    117 	uint32_t length; 	/* Length of data to be read from flash */
    118 } flash_cfg_parms_t;
    119 
    120 typedef struct {
    121 	flash_header_v1_t fhdr;
    122 	dcd_v1_t dcd_table;
    123 	flash_cfg_parms_t ext_header;
    124 } imx_header_v1_t;
    125 
    126 typedef struct {
    127 	uint32_t addr;
    128 	uint32_t value;
    129 } dcd_addr_data_t;
    130 
    131 typedef struct {
    132 	uint8_t tag;
    133 	uint16_t length;
    134 	uint8_t version;
    135 } __attribute__((packed)) ivt_header_t;
    136 
    137 typedef struct {
    138 	uint8_t tag;
    139 	uint16_t length;
    140 	uint8_t param;
    141 } __attribute__((packed)) write_dcd_command_t;
    142 
    143 struct dcd_v2_cmd {
    144 	write_dcd_command_t write_dcd_command;
    145 	dcd_addr_data_t addr_data[MAX_HW_CFG_SIZE_V2];
    146 };
    147 
    148 typedef struct {
    149 	ivt_header_t header;
    150 	struct dcd_v2_cmd dcd_cmd;
    151 	uint32_t padding[1]; /* end up on an 8-byte boundary */
    152 } dcd_v2_t;
    153 
    154 typedef struct {
    155 	uint32_t start;
    156 	uint32_t size;
    157 	uint32_t plugin;
    158 } boot_data_t;
    159 
    160 typedef struct {
    161 	ivt_header_t header;
    162 	uint32_t entry;
    163 	uint32_t reserved1;
    164 	uint32_t dcd_ptr;
    165 	uint32_t boot_data_ptr;
    166 	uint32_t self;
    167 	uint32_t csf;
    168 	uint32_t reserved2;
    169 } flash_header_v2_t;
    170 
    171 typedef struct {
    172 	flash_header_v2_t fhdr;
    173 	boot_data_t boot_data;
    174 	union {
    175 		dcd_v2_t dcd_table;
    176 		char plugin_code[MAX_PLUGIN_CODE_SIZE];
    177 	} data;
    178 } imx_header_v2_t;
    179 
    180 /* The header must be aligned to 4k on MX53 for NAND boot */
    181 struct imx_header {
    182 	union {
    183 		imx_header_v1_t hdr_v1;
    184 		imx_header_v2_t hdr_v2;
    185 	} header;
    186 };
    187 
    188 typedef void (*set_dcd_val_t)(struct imx_header *imxhdr,
    189 					char *name, int lineno,
    190 					int fld, uint32_t value,
    191 					uint32_t off);
    192 
    193 typedef void (*set_dcd_param_t)(struct imx_header *imxhdr, uint32_t dcd_len,
    194 					int32_t cmd);
    195 
    196 typedef void (*set_dcd_rst_t)(struct imx_header *imxhdr,
    197 					uint32_t dcd_len,
    198 					char *name, int lineno);
    199 
    200 typedef void (*set_imx_hdr_t)(struct imx_header *imxhdr, uint32_t dcd_len,
    201 		uint32_t entry_point, uint32_t flash_offset);
    202 
    203 #endif /* __ASSEMBLY__ */
    204 #endif /* _IMXIMAGE_H_ */
    205