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tools/imximage.c
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/* * (C) Copyright 2009 * Stefano Babic, DENX Software Engineering, sbabic@denx.de. * * (C) Copyright 2008 * Marvell Semiconductor <www.marvell.com> * Written-by: Prafulla Wadaskar <prafulla@marvell.com> * |
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* SPDX-License-Identifier: GPL-2.0+ |
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*/ |
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#include "imagetool.h" |
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#include <image.h> #include "imximage.h" |
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#define UNDEFINED 0xFFFFFFFF |
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/* * Supported commands for configuration file */ static table_entry_t imximage_cmds[] = { |
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{CMD_BOOT_FROM, "BOOT_FROM", "boot command", }, |
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{CMD_BOOT_OFFSET, "BOOT_OFFSET", "Boot offset", }, |
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{CMD_DATA, "DATA", "Reg Write Data", }, |
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{CMD_CSF, "CSF", "Command Sequence File", }, |
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{CMD_IMAGE_VERSION, "IMAGE_VERSION", "image version", }, {-1, "", "", }, |
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}; /* * Supported Boot options for configuration file * this is needed to set the correct flash offset */ |
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static table_entry_t imximage_boot_offset[] = { |
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{FLASH_OFFSET_ONENAND, "onenand", "OneNAND Flash",}, |
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{FLASH_OFFSET_NAND, "nand", "NAND Flash", }, |
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{FLASH_OFFSET_NOR, "nor", "NOR Flash", }, {FLASH_OFFSET_SATA, "sata", "SATA Disk", }, |
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{FLASH_OFFSET_SD, "sd", "SD Card", }, {FLASH_OFFSET_SPI, "spi", "SPI Flash", }, |
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{-1, "", "Invalid", }, }; |
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/* |
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* Supported Boot options for configuration file * this is needed to determine the initial load size */ static table_entry_t imximage_boot_loadsize[] = { {FLASH_LOADSIZE_ONENAND, "onenand", "OneNAND Flash",}, {FLASH_LOADSIZE_NAND, "nand", "NAND Flash", }, {FLASH_LOADSIZE_NOR, "nor", "NOR Flash", }, {FLASH_LOADSIZE_SATA, "sata", "SATA Disk", }, {FLASH_LOADSIZE_SD, "sd", "SD Card", }, {FLASH_LOADSIZE_SPI, "spi", "SPI Flash", }, {-1, "", "Invalid", }, }; /* |
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* IMXIMAGE version definition for i.MX chips */ static table_entry_t imximage_versions[] = { {IMXIMAGE_V1, "", " (i.MX25/35/51 compatible)", }, |
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{IMXIMAGE_V2, "", " (i.MX53/6 compatible)", }, |
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{-1, "", " (Invalid)", }, }; |
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static struct imx_header imximage_header; |
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static uint32_t imximage_version; |
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/* * Image Vector Table Offset * Initialized to a wrong not 4-bytes aligned address to * check if it is was set by the cfg file. */ static uint32_t imximage_ivt_offset = UNDEFINED; static uint32_t imximage_csf_size = UNDEFINED; |
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/* Initial Load Region Size */ static uint32_t imximage_init_loadsize; |
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static set_dcd_val_t set_dcd_val; static set_dcd_rst_t set_dcd_rst; static set_imx_hdr_t set_imx_hdr; |
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static uint32_t max_dcd_entries; |
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static uint32_t *header_size_ptr; |
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static uint32_t *csf_ptr; |
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static uint32_t get_cfg_value(char *token, char *name, int linenr) { char *endptr; uint32_t value; errno = 0; value = strtoul(token, &endptr, 16); if (errno || (token == endptr)) { fprintf(stderr, "Error: %s[%d] - Invalid hex data(%s) ", name, linenr, token); exit(EXIT_FAILURE); } return value; } |
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static uint32_t detect_imximage_version(struct imx_header *imx_hdr) |
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{ |
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imx_header_v1_t *hdr_v1 = &imx_hdr->header.hdr_v1; imx_header_v2_t *hdr_v2 = &imx_hdr->header.hdr_v2; flash_header_v1_t *fhdr_v1 = &hdr_v1->fhdr; flash_header_v2_t *fhdr_v2 = &hdr_v2->fhdr; /* Try to detect V1 */ if ((fhdr_v1->app_code_barker == APP_CODE_BARKER) && (hdr_v1->dcd_table.preamble.barker == DCD_BARKER)) return IMXIMAGE_V1; /* Try to detect V2 */ if ((fhdr_v2->header.tag == IVT_HEADER_TAG) && (hdr_v2->dcd_table.header.tag == DCD_HEADER_TAG)) return IMXIMAGE_V2; return IMXIMAGE_VER_INVALID; |
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} |
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static void err_imximage_version(int version) |
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{ |
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fprintf(stderr, "Error: Unsupported imximage version:%d ", version); |
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exit(EXIT_FAILURE); } |
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static void set_dcd_val_v1(struct imx_header *imxhdr, char *name, int lineno, int fld, uint32_t value, uint32_t off) { dcd_v1_t *dcd_v1 = &imxhdr->header.hdr_v1.dcd_table; switch (fld) { case CFG_REG_SIZE: /* Byte, halfword, word */ if ((value != 1) && (value != 2) && (value != 4)) { fprintf(stderr, "Error: %s[%d] - " "Invalid register size " "(%d) ", name, lineno, value); exit(EXIT_FAILURE); } dcd_v1->addr_data[off].type = value; break; case CFG_REG_ADDRESS: dcd_v1->addr_data[off].addr = value; break; case CFG_REG_VALUE: dcd_v1->addr_data[off].value = value; break; default: break; |
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} } |
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static void set_dcd_val_v2(struct imx_header *imxhdr, char *name, int lineno, int fld, uint32_t value, uint32_t off) { dcd_v2_t *dcd_v2 = &imxhdr->header.hdr_v2.dcd_table; switch (fld) { case CFG_REG_ADDRESS: dcd_v2->addr_data[off].addr = cpu_to_be32(value); break; case CFG_REG_VALUE: dcd_v2->addr_data[off].value = cpu_to_be32(value); break; default: break; } |
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} |
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/* * Complete setting up the rest field of DCD of V1 * such as barker code and DCD data length. */ static void set_dcd_rst_v1(struct imx_header *imxhdr, uint32_t dcd_len, char *name, int lineno) |
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{ |
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dcd_v1_t *dcd_v1 = &imxhdr->header.hdr_v1.dcd_table; |
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dcd_v1->preamble.barker = DCD_BARKER; dcd_v1->preamble.length = dcd_len * sizeof(dcd_type_addr_data_t); } /* * Complete setting up the reset field of DCD of V2 * such as DCD tag, version, length, etc. */ static void set_dcd_rst_v2(struct imx_header *imxhdr, uint32_t dcd_len, char *name, int lineno) { dcd_v2_t *dcd_v2 = &imxhdr->header.hdr_v2.dcd_table; |
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dcd_v2->header.tag = DCD_HEADER_TAG; dcd_v2->header.length = cpu_to_be16( dcd_len * sizeof(dcd_addr_data_t) + 8); dcd_v2->header.version = DCD_VERSION; dcd_v2->write_dcd_command.tag = DCD_COMMAND_TAG; dcd_v2->write_dcd_command.length = cpu_to_be16( dcd_len * sizeof(dcd_addr_data_t) + 4); dcd_v2->write_dcd_command.param = DCD_COMMAND_PARAM; } static void set_imx_hdr_v1(struct imx_header *imxhdr, uint32_t dcd_len, |
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uint32_t entry_point, uint32_t flash_offset) |
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{ imx_header_v1_t *hdr_v1 = &imxhdr->header.hdr_v1; flash_header_v1_t *fhdr_v1 = &hdr_v1->fhdr; dcd_v1_t *dcd_v1 = &hdr_v1->dcd_table; |
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uint32_t hdr_base; |
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uint32_t header_length = (((char *)&dcd_v1->addr_data[dcd_len].addr) - ((char *)imxhdr)); |
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/* Set magic number */ fhdr_v1->app_code_barker = APP_CODE_BARKER; |
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/* TODO: check i.MX image V1 handling, for now use 'old' style */ hdr_base = entry_point - 4096; |
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fhdr_v1->app_dest_ptr = hdr_base - flash_offset; |
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fhdr_v1->app_code_jump_vector = entry_point; |
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fhdr_v1->dcd_ptr_ptr = hdr_base + offsetof(flash_header_v1_t, dcd_ptr); fhdr_v1->dcd_ptr = hdr_base + offsetof(imx_header_v1_t, dcd_table); |
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/* Security feature are not supported */ fhdr_v1->app_code_csf = 0; fhdr_v1->super_root_key = 0; |
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header_size_ptr = (uint32_t *)(((char *)imxhdr) + header_length - 4); |
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} static void set_imx_hdr_v2(struct imx_header *imxhdr, uint32_t dcd_len, |
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uint32_t entry_point, uint32_t flash_offset) |
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{ imx_header_v2_t *hdr_v2 = &imxhdr->header.hdr_v2; flash_header_v2_t *fhdr_v2 = &hdr_v2->fhdr; |
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uint32_t hdr_base; |
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/* Set magic number */ fhdr_v2->header.tag = IVT_HEADER_TAG; /* 0xD1 */ fhdr_v2->header.length = cpu_to_be16(sizeof(flash_header_v2_t)); fhdr_v2->header.version = IVT_VERSION; /* 0x40 */ |
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fhdr_v2->entry = entry_point; |
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fhdr_v2->reserved1 = fhdr_v2->reserved2 = 0; |
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hdr_base = entry_point - imximage_init_loadsize + flash_offset; fhdr_v2->self = hdr_base; |
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fhdr_v2->dcd_ptr = hdr_base + offsetof(imx_header_v2_t, dcd_table); fhdr_v2->boot_data_ptr = hdr_base + offsetof(imx_header_v2_t, boot_data); |
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hdr_v2->boot_data.start = entry_point - imximage_init_loadsize; |
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fhdr_v2->csf = 0; |
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header_size_ptr = &hdr_v2->boot_data.size; |
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csf_ptr = &fhdr_v2->csf; |
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} |
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static void set_hdr_func(void) |
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{ switch (imximage_version) { case IMXIMAGE_V1: set_dcd_val = set_dcd_val_v1; set_dcd_rst = set_dcd_rst_v1; set_imx_hdr = set_imx_hdr_v1; |
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max_dcd_entries = MAX_HW_CFG_SIZE_V1; |
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break; case IMXIMAGE_V2: set_dcd_val = set_dcd_val_v2; set_dcd_rst = set_dcd_rst_v2; set_imx_hdr = set_imx_hdr_v2; |
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max_dcd_entries = MAX_HW_CFG_SIZE_V2; |
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break; default: err_imximage_version(imximage_version); break; } } |
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static void print_hdr_v1(struct imx_header *imx_hdr) { imx_header_v1_t *hdr_v1 = &imx_hdr->header.hdr_v1; flash_header_v1_t *fhdr_v1 = &hdr_v1->fhdr; dcd_v1_t *dcd_v1 = &hdr_v1->dcd_table; uint32_t size, length, ver; size = dcd_v1->preamble.length; if (size > (MAX_HW_CFG_SIZE_V1 * sizeof(dcd_type_addr_data_t))) { |
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fprintf(stderr, "Error: Image corrupt DCD size %d exceed maximum %d ", |
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(uint32_t)(size / sizeof(dcd_type_addr_data_t)), |
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MAX_HW_CFG_SIZE_V1); exit(EXIT_FAILURE); } length = dcd_v1->preamble.length / sizeof(dcd_type_addr_data_t); ver = detect_imximage_version(imx_hdr); printf("Image Type: Freescale IMX Boot Image "); printf("Image Ver: %x", ver); printf("%s ", get_table_entry_name(imximage_versions, NULL, ver)); printf("Data Size: "); genimg_print_size(dcd_v1->addr_data[length].type); printf("Load Address: %08x ", (uint32_t)fhdr_v1->app_dest_ptr); printf("Entry Point: %08x ", (uint32_t)fhdr_v1->app_code_jump_vector); } static void print_hdr_v2(struct imx_header *imx_hdr) { imx_header_v2_t *hdr_v2 = &imx_hdr->header.hdr_v2; flash_header_v2_t *fhdr_v2 = &hdr_v2->fhdr; dcd_v2_t *dcd_v2 = &hdr_v2->dcd_table; uint32_t size, version; size = be16_to_cpu(dcd_v2->header.length) - 8; if (size > (MAX_HW_CFG_SIZE_V2 * sizeof(dcd_addr_data_t))) { fprintf(stderr, "Error: Image corrupt DCD size %d exceed maximum %d ", (uint32_t)(size / sizeof(dcd_addr_data_t)), MAX_HW_CFG_SIZE_V2); |
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exit(EXIT_FAILURE); } |
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version = detect_imximage_version(imx_hdr); |
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printf("Image Type: Freescale IMX Boot Image "); |
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printf("Image Ver: %x", version); printf("%s ", get_table_entry_name(imximage_versions, NULL, version)); |
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printf("Data Size: "); |
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genimg_print_size(hdr_v2->boot_data.size); printf("Load Address: %08x ", (uint32_t)fhdr_v2->boot_data_ptr); printf("Entry Point: %08x ", (uint32_t)fhdr_v2->entry); |
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if (fhdr_v2->csf && (imximage_ivt_offset != UNDEFINED) && (imximage_csf_size != UNDEFINED)) { printf("HAB Blocks: %08x %08x %08x ", (uint32_t)fhdr_v2->self, 0, hdr_v2->boot_data.size - imximage_ivt_offset - imximage_csf_size); } |
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} |
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static void parse_cfg_cmd(struct imx_header *imxhdr, int32_t cmd, char *token, char *name, int lineno, int fld, int dcd_len) { int value; static int cmd_ver_first = ~0; switch (cmd) { case CMD_IMAGE_VERSION: imximage_version = get_cfg_value(token, name, lineno); if (cmd_ver_first == 0) { fprintf(stderr, "Error: %s[%d] - IMAGE_VERSION " "command need be the first before other " "valid command in the file ", name, lineno); exit(EXIT_FAILURE); } cmd_ver_first = 1; |
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set_hdr_func(); |
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break; case CMD_BOOT_FROM: |
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imximage_ivt_offset = get_table_entry_id(imximage_boot_offset, |
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"imximage boot option", token); |
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if (imximage_ivt_offset == -1) { |
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fprintf(stderr, "Error: %s[%d] -Invalid boot device" "(%s) ", name, lineno, token); exit(EXIT_FAILURE); } |
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imximage_init_loadsize = get_table_entry_id(imximage_boot_loadsize, "imximage boot option", token); if (imximage_init_loadsize == -1) { fprintf(stderr, "Error: %s[%d] -Invalid boot device(%s) ", name, lineno, token); exit(EXIT_FAILURE); } |
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/* * The SOC loads from the storage starting at address 0 * then ensures that the load size contains the offset */ if (imximage_init_loadsize < imximage_ivt_offset) imximage_init_loadsize = imximage_ivt_offset; |
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if (unlikely(cmd_ver_first != 1)) cmd_ver_first = 0; break; |
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case CMD_BOOT_OFFSET: |
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imximage_ivt_offset = get_cfg_value(token, name, lineno); |
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if (unlikely(cmd_ver_first != 1)) cmd_ver_first = 0; break; |
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case CMD_DATA: value = get_cfg_value(token, name, lineno); (*set_dcd_val)(imxhdr, name, lineno, fld, value, dcd_len); if (unlikely(cmd_ver_first != 1)) cmd_ver_first = 0; break; |
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case CMD_CSF: if (imximage_version != 2) { fprintf(stderr, "Error: %s[%d] - CSF only supported for VERSION 2(%s) ", name, lineno, token); exit(EXIT_FAILURE); } imximage_csf_size = get_cfg_value(token, name, lineno); if (unlikely(cmd_ver_first != 1)) cmd_ver_first = 0; break; |
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} } static void parse_cfg_fld(struct imx_header *imxhdr, int32_t *cmd, char *token, char *name, int lineno, int fld, int *dcd_len) { int value; switch (fld) { case CFG_COMMAND: *cmd = get_table_entry_id(imximage_cmds, "imximage commands", token); if (*cmd < 0) { fprintf(stderr, "Error: %s[%d] - Invalid command" "(%s) ", name, lineno, token); exit(EXIT_FAILURE); } break; case CFG_REG_SIZE: parse_cfg_cmd(imxhdr, *cmd, token, name, lineno, fld, *dcd_len); break; case CFG_REG_ADDRESS: case CFG_REG_VALUE: if (*cmd != CMD_DATA) return; value = get_cfg_value(token, name, lineno); (*set_dcd_val)(imxhdr, name, lineno, fld, value, *dcd_len); |
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if (fld == CFG_REG_VALUE) { |
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(*dcd_len)++; |
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if (*dcd_len > max_dcd_entries) { fprintf(stderr, "Error: %s[%d] -" "DCD table exceeds maximum size(%d) ", name, lineno, max_dcd_entries); exit(EXIT_FAILURE); } } |
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break; default: break; } } static uint32_t parse_cfg_file(struct imx_header *imxhdr, char *name) |
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{ FILE *fd = NULL; char *line = NULL; char *token, *saveptr1, *saveptr2; int lineno = 0; |
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int fld; |
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size_t len; |
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int dcd_len = 0; |
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int32_t cmd; fd = fopen(name, "r"); if (fd == 0) { fprintf(stderr, "Error: %s - Can't open DCD file ", name); exit(EXIT_FAILURE); } |
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/* * Very simple parsing, line starting with # are comments |
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* and are dropped */ while ((getline(&line, &len, fd)) > 0) { lineno++; token = strtok_r(line, "\r ", &saveptr1); if (token == NULL) continue; /* Check inside the single line */ for (fld = CFG_COMMAND, cmd = CMD_INVALID, line = token; ; line = NULL, fld++) { token = strtok_r(line, " \t", &saveptr2); if (token == NULL) break; /* Drop all text starting with '#' as comments */ if (token[0] == '#') break; |
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parse_cfg_fld(imxhdr, &cmd, token, name, lineno, fld, &dcd_len); |
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} |
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} |
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(*set_dcd_rst)(imxhdr, dcd_len, name, lineno); |
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fclose(fd); |
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/* Exit if there is no BOOT_FROM field specifying the flash_offset */ |
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if (imximage_ivt_offset == FLASH_OFFSET_UNDEFINED) { |
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fprintf(stderr, "Error: No BOOT_FROM tag in %s ", name); exit(EXIT_FAILURE); } |
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return dcd_len; |
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} |
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|
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static int imximage_check_image_types(uint8_t type) { if (type == IH_TYPE_IMXIMAGE) return EXIT_SUCCESS; else return EXIT_FAILURE; } |
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|
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static int imximage_verify_header(unsigned char *ptr, int image_size, |
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struct image_tool_params *params) |
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{ struct imx_header *imx_hdr = (struct imx_header *) ptr; |
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|
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if (detect_imximage_version(imx_hdr) == IMXIMAGE_VER_INVALID) return -FDT_ERR_BADSTRUCTURE; |
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|
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return 0; } |
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|
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static void imximage_print_header(const void *ptr) { struct imx_header *imx_hdr = (struct imx_header *) ptr; uint32_t version = detect_imximage_version(imx_hdr); switch (version) { case IMXIMAGE_V1: print_hdr_v1(imx_hdr); break; case IMXIMAGE_V2: print_hdr_v2(imx_hdr); break; default: err_imximage_version(version); break; } } |
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|
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static void imximage_set_header(void *ptr, struct stat *sbuf, int ifd, |
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struct image_tool_params *params) |
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{ struct imx_header *imxhdr = (struct imx_header *)ptr; uint32_t dcd_len; |
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|
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/* * In order to not change the old imx cfg file * by adding VERSION command into it, here need * set up function ptr group to V1 by default. */ imximage_version = IMXIMAGE_V1; |
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/* Be able to detect if the cfg file has no BOOT_FROM tag */ |
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imximage_ivt_offset = FLASH_OFFSET_UNDEFINED; |
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imximage_csf_size = 0; |
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set_hdr_func(); |
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|
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/* Parse dcd configuration file */ dcd_len = parse_cfg_file(imxhdr, params->imagename); |
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|
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if (imximage_version == IMXIMAGE_V2) { if (imximage_init_loadsize < imximage_ivt_offset + sizeof(imx_header_v2_t)) imximage_init_loadsize = imximage_ivt_offset + sizeof(imx_header_v2_t); } |
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/* Set the imx header */ |
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(*set_imx_hdr)(imxhdr, dcd_len, params->ep, imximage_ivt_offset); |
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/* * ROM bug alert |
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* * MX53 only loads 512 byte multiples in case of SD boot. * MX53 only loads NAND page multiples in case of NAND boot and * supports up to 4096 byte large pages, thus align to 4096. * * The remaining fraction of a block bytes would not be loaded! |
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*/ |
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*header_size_ptr = ROUND(sbuf->st_size, 4096); |
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if (csf_ptr && imximage_csf_size) { *csf_ptr = params->ep - imximage_init_loadsize + *header_size_ptr; *header_size_ptr += imximage_csf_size; } |
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} |
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int imximage_check_params(struct image_tool_params *params) |
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{ if (!params) return CFG_INVALID; if (!strlen(params->imagename)) { fprintf(stderr, "Error: %s - Configuration file not specified, " "it is needed for imximage generation ", params->cmdname); return CFG_INVALID; } /* * Check parameters: * XIP is not allowed and verify that incompatible * parameters are not sent at the same time * For example, if list is required a data image must not be provided */ return (params->dflag && (params->fflag || params->lflag)) || (params->fflag && (params->dflag || params->lflag)) || (params->lflag && (params->dflag || params->fflag)) || (params->xflag) || !(strlen(params->imagename)); } |
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static int imximage_generate(struct image_tool_params *params, |
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struct image_type_params *tparams) { struct imx_header *imxhdr; size_t alloc_len; struct stat sbuf; char *datafile = params->datafile; uint32_t pad_len; memset(&imximage_header, 0, sizeof(imximage_header)); /* * In order to not change the old imx cfg file * by adding VERSION command into it, here need * set up function ptr group to V1 by default. */ imximage_version = IMXIMAGE_V1; /* Be able to detect if the cfg file has no BOOT_FROM tag */ imximage_ivt_offset = FLASH_OFFSET_UNDEFINED; imximage_csf_size = 0; |
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set_hdr_func(); |
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/* Parse dcd configuration file */ parse_cfg_file(&imximage_header, params->imagename); /* TODO: check i.MX image V1 handling, for now use 'old' style */ if (imximage_version == IMXIMAGE_V1) { alloc_len = 4096; } else { if (imximage_init_loadsize < imximage_ivt_offset + sizeof(imx_header_v2_t)) imximage_init_loadsize = imximage_ivt_offset + sizeof(imx_header_v2_t); alloc_len = imximage_init_loadsize - imximage_ivt_offset; } if (alloc_len < sizeof(struct imx_header)) { fprintf(stderr, "%s: header error ", params->cmdname); exit(EXIT_FAILURE); } imxhdr = malloc(alloc_len); if (!imxhdr) { fprintf(stderr, "%s: malloc return failure: %s ", params->cmdname, strerror(errno)); exit(EXIT_FAILURE); } memset(imxhdr, 0, alloc_len); tparams->header_size = alloc_len; tparams->hdr = imxhdr; /* determine data image file length */ if (stat(datafile, &sbuf) < 0) { fprintf(stderr, "%s: Can't stat %s: %s ", params->cmdname, datafile, strerror(errno)); exit(EXIT_FAILURE); } pad_len = ROUND(sbuf.st_size, 4096) - sbuf.st_size; /* TODO: check i.MX image V1 handling, for now use 'old' style */ if (imximage_version == IMXIMAGE_V1) return 0; else return pad_len; } |
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/* * imximage parameters */ static struct image_type_params imximage_params = { |
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.name = "Freescale i.MX Boot Image support", |
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.header_size = 0, .hdr = NULL, |
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.check_image_type = imximage_check_image_types, .verify_header = imximage_verify_header, .print_header = imximage_print_header, .set_header = imximage_set_header, .check_params = imximage_check_params, |
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.vrec_header = imximage_generate, |
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}; void init_imx_image_type(void) { |
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register_image_type(&imximage_params); |
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} |