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https://github.com/brain-hackers/u-boot-brain
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![Holger Dengler](/assets/img/avatar_default.png)
Signing parts of a u-boot imximage for image verification in High Assurance Boot (HAB) in a post-build process, requires some information from the imximage header. Currently, this information is only provided during the image build, which makes the transfer of this information to the post-build process harder than necessary. The i.MX HAB information (start and length) can be calculated either by using information from the image-configuration file, or from the information in the flash header of the imximage. The advantage of using information from flash header is, that they are not only available during image creation, but also available if existing images are processed. Example: $ tools/mkimage -l u-boot.imx Image Type: Freescale IMX Boot Image Image Ver: 2 (i.MX53/6/7 compatible) Mode: DCD Data Size: 483328 Bytes = 472.00 KiB = 0.46 MiB Load Address: 877ff420 Entry Point: 87800000 HAB Blocks: 0x877ff400 0x00000000 0x00071c00 DCD Blocks: 0x00910000 0x0000002c 0x00000208 Signed-off-by: Holger Dengler <dengler@linutronix.de> Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
997 lines
27 KiB
C
997 lines
27 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2009
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* Stefano Babic, DENX Software Engineering, sbabic@denx.de.
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*
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* (C) Copyright 2008
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* Marvell Semiconductor <www.marvell.com>
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* Written-by: Prafulla Wadaskar <prafulla@marvell.com>
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*/
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#include "imagetool.h"
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#include <image.h>
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#include "imximage.h"
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#define UNDEFINED 0xFFFFFFFF
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/*
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* Supported commands for configuration file
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*/
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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_WRITE_DATA, "DATA", "Reg Write Data", },
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{CMD_WRITE_CLR_BIT, "CLR_BIT", "Reg clear bit", },
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{CMD_WRITE_SET_BIT, "SET_BIT", "Reg set bit", },
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{CMD_CHECK_BITS_SET, "CHECK_BITS_SET", "Reg Check bits set", },
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{CMD_CHECK_BITS_CLR, "CHECK_BITS_CLR", "Reg Check bits clr", },
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{CMD_CSF, "CSF", "Command Sequence File", },
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{CMD_IMAGE_VERSION, "IMAGE_VERSION", "image version", },
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{CMD_PLUGIN, "PLUGIN", "file plugin_addr", },
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{-1, "", "", },
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};
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/*
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* Supported Boot options for configuration file
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* this is needed to set the correct flash offset
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*/
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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", },
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{FLASH_OFFSET_SATA, "sata", "SATA Disk", },
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{FLASH_OFFSET_SD, "sd", "SD Card", },
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{FLASH_OFFSET_SPI, "spi", "SPI Flash", },
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{FLASH_OFFSET_QSPI, "qspi", "QSPI NOR Flash",},
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{-1, "", "Invalid", },
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};
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/*
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* Supported Boot options for configuration file
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* this is needed to determine the initial load size
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*/
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static table_entry_t imximage_boot_loadsize[] = {
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{FLASH_LOADSIZE_ONENAND, "onenand", "OneNAND Flash",},
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{FLASH_LOADSIZE_NAND, "nand", "NAND Flash", },
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{FLASH_LOADSIZE_NOR, "nor", "NOR Flash", },
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{FLASH_LOADSIZE_SATA, "sata", "SATA Disk", },
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{FLASH_LOADSIZE_SD, "sd", "SD Card", },
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{FLASH_LOADSIZE_SPI, "spi", "SPI Flash", },
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{FLASH_LOADSIZE_QSPI, "qspi", "QSPI NOR Flash",},
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{-1, "", "Invalid", },
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};
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/*
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* IMXIMAGE version definition for i.MX chips
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*/
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static table_entry_t imximage_versions[] = {
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{IMXIMAGE_V1, "", " (i.MX25/35/51 compatible)", },
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{IMXIMAGE_V2, "", " (i.MX53/6/7 compatible)", },
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{-1, "", " (Invalid)", },
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};
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static struct imx_header imximage_header;
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static uint32_t imximage_version;
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/*
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* Image Vector Table Offset
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* Initialized to a wrong not 4-bytes aligned address to
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* check if it is was set by the cfg file.
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*/
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static uint32_t imximage_ivt_offset = UNDEFINED;
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static uint32_t imximage_csf_size = UNDEFINED;
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/* Initial Load Region Size */
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static uint32_t imximage_init_loadsize;
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static uint32_t imximage_iram_free_start;
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static uint32_t imximage_plugin_size;
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static uint32_t plugin_image;
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static set_dcd_val_t set_dcd_val;
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static set_dcd_param_t set_dcd_param;
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static set_dcd_rst_t set_dcd_rst;
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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)
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{
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char *endptr;
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uint32_t value;
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errno = 0;
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value = strtoul(token, &endptr, 16);
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if (errno || (token == endptr)) {
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fprintf(stderr, "Error: %s[%d] - Invalid hex data(%s)\n",
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name, linenr, token);
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exit(EXIT_FAILURE);
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}
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return value;
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}
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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;
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imx_header_v2_t *hdr_v2 = &imx_hdr->header.hdr_v2;
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flash_header_v1_t *fhdr_v1 = &hdr_v1->fhdr;
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flash_header_v2_t *fhdr_v2 = &hdr_v2->fhdr;
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/* Try to detect V1 */
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if ((fhdr_v1->app_code_barker == APP_CODE_BARKER) &&
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(hdr_v1->dcd_table.preamble.barker == DCD_BARKER))
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return IMXIMAGE_V1;
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/* Try to detect V2 */
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if ((fhdr_v2->header.tag == IVT_HEADER_TAG) &&
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(hdr_v2->data.dcd_table.header.tag == DCD_HEADER_TAG))
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return IMXIMAGE_V2;
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if ((fhdr_v2->header.tag == IVT_HEADER_TAG) &&
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hdr_v2->boot_data.plugin)
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return IMXIMAGE_V2;
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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,
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"Error: Unsupported imximage version:%d\n", version);
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exit(EXIT_FAILURE);
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}
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static void set_dcd_val_v1(struct imx_header *imxhdr, char *name, int lineno,
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int fld, uint32_t value, uint32_t off)
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{
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dcd_v1_t *dcd_v1 = &imxhdr->header.hdr_v1.dcd_table;
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switch (fld) {
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case CFG_REG_SIZE:
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/* Byte, halfword, word */
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if ((value != 1) && (value != 2) && (value != 4)) {
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fprintf(stderr, "Error: %s[%d] - "
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"Invalid register size " "(%d)\n",
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name, lineno, value);
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exit(EXIT_FAILURE);
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}
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dcd_v1->addr_data[off].type = value;
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break;
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case CFG_REG_ADDRESS:
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dcd_v1->addr_data[off].addr = value;
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break;
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case CFG_REG_VALUE:
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dcd_v1->addr_data[off].value = value;
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break;
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default:
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break;
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}
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}
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static struct dcd_v2_cmd *gd_last_cmd;
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static void set_dcd_param_v2(struct imx_header *imxhdr, uint32_t dcd_len,
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int32_t cmd)
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{
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dcd_v2_t *dcd_v2 = &imxhdr->header.hdr_v2.data.dcd_table;
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struct dcd_v2_cmd *d = gd_last_cmd;
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struct dcd_v2_cmd *d2;
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int len;
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if (!d)
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d = &dcd_v2->dcd_cmd;
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d2 = d;
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len = be16_to_cpu(d->write_dcd_command.length);
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if (len > 4)
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d2 = (struct dcd_v2_cmd *)(((char *)d) + len);
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switch (cmd) {
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case CMD_WRITE_DATA:
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if ((d->write_dcd_command.tag == DCD_WRITE_DATA_COMMAND_TAG) &&
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(d->write_dcd_command.param == DCD_WRITE_DATA_PARAM))
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break;
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d = d2;
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d->write_dcd_command.tag = DCD_WRITE_DATA_COMMAND_TAG;
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d->write_dcd_command.length = cpu_to_be16(4);
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d->write_dcd_command.param = DCD_WRITE_DATA_PARAM;
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break;
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case CMD_WRITE_CLR_BIT:
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if ((d->write_dcd_command.tag == DCD_WRITE_DATA_COMMAND_TAG) &&
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(d->write_dcd_command.param == DCD_WRITE_CLR_BIT_PARAM))
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break;
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d = d2;
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d->write_dcd_command.tag = DCD_WRITE_DATA_COMMAND_TAG;
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d->write_dcd_command.length = cpu_to_be16(4);
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d->write_dcd_command.param = DCD_WRITE_CLR_BIT_PARAM;
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break;
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case CMD_WRITE_SET_BIT:
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if ((d->write_dcd_command.tag == DCD_WRITE_DATA_COMMAND_TAG) &&
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(d->write_dcd_command.param == DCD_WRITE_SET_BIT_PARAM))
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break;
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d = d2;
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d->write_dcd_command.tag = DCD_WRITE_DATA_COMMAND_TAG;
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d->write_dcd_command.length = cpu_to_be16(4);
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d->write_dcd_command.param = DCD_WRITE_SET_BIT_PARAM;
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break;
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/*
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* Check data command only supports one entry,
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*/
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case CMD_CHECK_BITS_SET:
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d = d2;
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d->write_dcd_command.tag = DCD_CHECK_DATA_COMMAND_TAG;
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d->write_dcd_command.length = cpu_to_be16(4);
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d->write_dcd_command.param = DCD_CHECK_BITS_SET_PARAM;
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break;
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case CMD_CHECK_BITS_CLR:
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d = d2;
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d->write_dcd_command.tag = DCD_CHECK_DATA_COMMAND_TAG;
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d->write_dcd_command.length = cpu_to_be16(4);
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d->write_dcd_command.param = DCD_CHECK_BITS_CLR_PARAM;
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break;
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default:
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break;
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}
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gd_last_cmd = d;
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}
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static void set_dcd_val_v2(struct imx_header *imxhdr, char *name, int lineno,
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int fld, uint32_t value, uint32_t off)
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{
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struct dcd_v2_cmd *d = gd_last_cmd;
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int len;
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len = be16_to_cpu(d->write_dcd_command.length);
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off = (len - 4) >> 3;
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switch (fld) {
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case CFG_REG_ADDRESS:
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d->addr_data[off].addr = cpu_to_be32(value);
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break;
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case CFG_REG_VALUE:
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d->addr_data[off].value = cpu_to_be32(value);
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off++;
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d->write_dcd_command.length = cpu_to_be16((off << 3) + 4);
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break;
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default:
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break;
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}
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}
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/*
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* Complete setting up the rest field of DCD of V1
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* such as barker code and DCD data length.
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*/
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static void set_dcd_rst_v1(struct imx_header *imxhdr, uint32_t dcd_len,
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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;
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dcd_v1->preamble.length = dcd_len * sizeof(dcd_type_addr_data_t);
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}
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/*
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* Complete setting up the reset field of DCD of V2
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* such as DCD tag, version, length, etc.
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*/
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static void set_dcd_rst_v2(struct imx_header *imxhdr, uint32_t dcd_len,
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char *name, int lineno)
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{
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if (!imxhdr->header.hdr_v2.boot_data.plugin) {
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dcd_v2_t *dcd_v2 = &imxhdr->header.hdr_v2.data.dcd_table;
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struct dcd_v2_cmd *d = gd_last_cmd;
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int len;
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if (!d)
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d = &dcd_v2->dcd_cmd;
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len = be16_to_cpu(d->write_dcd_command.length);
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if (len > 4)
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d = (struct dcd_v2_cmd *)(((char *)d) + len);
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len = (char *)d - (char *)&dcd_v2->header;
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dcd_v2->header.tag = DCD_HEADER_TAG;
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dcd_v2->header.length = cpu_to_be16(len);
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dcd_v2->header.version = DCD_VERSION;
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}
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}
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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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{
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imx_header_v1_t *hdr_v1 = &imxhdr->header.hdr_v1;
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flash_header_v1_t *fhdr_v1 = &hdr_v1->fhdr;
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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)
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- ((char *)imxhdr));
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/* Set magic number */
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fhdr_v1->app_code_barker = APP_CODE_BARKER;
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hdr_base = entry_point - imximage_init_loadsize + flash_offset;
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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);
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fhdr_v1->dcd_ptr = hdr_base + offsetof(imx_header_v1_t, dcd_table);
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/* Security feature are not supported */
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fhdr_v1->app_code_csf = 0;
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fhdr_v1->super_root_key = 0;
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header_size_ptr = (uint32_t *)(((char *)imxhdr) + header_length - 4);
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}
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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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{
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imx_header_v2_t *hdr_v2 = &imxhdr->header.hdr_v2;
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flash_header_v2_t *fhdr_v2 = &hdr_v2->fhdr;
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uint32_t hdr_base;
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/* Set magic number */
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fhdr_v2->header.tag = IVT_HEADER_TAG; /* 0xD1 */
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fhdr_v2->header.length = cpu_to_be16(sizeof(flash_header_v2_t));
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fhdr_v2->header.version = IVT_VERSION; /* 0x40 */
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if (!hdr_v2->boot_data.plugin) {
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fhdr_v2->entry = entry_point;
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fhdr_v2->reserved1 = 0;
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fhdr_v2->reserved1 = 0;
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hdr_base = entry_point - imximage_init_loadsize +
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flash_offset;
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fhdr_v2->self = hdr_base;
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if (dcd_len > 0)
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fhdr_v2->dcd_ptr = hdr_base +
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offsetof(imx_header_v2_t, data);
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else
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fhdr_v2->dcd_ptr = 0;
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fhdr_v2->boot_data_ptr = hdr_base
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+ 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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} else {
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imx_header_v2_t *next_hdr_v2;
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flash_header_v2_t *next_fhdr_v2;
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if (imximage_csf_size != 0) {
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fprintf(stderr, "Error: Header v2: SECURE_BOOT is only supported in DCD mode!");
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exit(EXIT_FAILURE);
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}
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fhdr_v2->entry = imximage_iram_free_start +
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flash_offset + sizeof(flash_header_v2_t) +
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sizeof(boot_data_t);
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fhdr_v2->reserved1 = 0;
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fhdr_v2->reserved2 = 0;
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fhdr_v2->self = imximage_iram_free_start + flash_offset;
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fhdr_v2->dcd_ptr = 0;
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fhdr_v2->boot_data_ptr = fhdr_v2->self +
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offsetof(imx_header_v2_t, boot_data);
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hdr_v2->boot_data.start = imximage_iram_free_start;
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/*
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* The actural size of plugin image is "imximage_plugin_size +
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* sizeof(flash_header_v2_t) + sizeof(boot_data_t)", plus the
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* flash_offset space.The ROM code only need to copy this size
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* to run the plugin code. However, later when copy the whole
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* U-Boot image to DDR, the ROM code use memcpy to copy the
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* first part of the image, and use the storage read function
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* to get the remaining part. This requires the dividing point
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* must be multiple of storage sector size. Here we set the
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* first section to be MAX_PLUGIN_CODE_SIZE(64KB) for this
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* purpose.
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*/
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hdr_v2->boot_data.size = MAX_PLUGIN_CODE_SIZE;
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/* Security feature are not supported */
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fhdr_v2->csf = 0;
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next_hdr_v2 = (imx_header_v2_t *)((char *)hdr_v2 +
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imximage_plugin_size);
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next_fhdr_v2 = &next_hdr_v2->fhdr;
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next_fhdr_v2->header.tag = IVT_HEADER_TAG; /* 0xD1 */
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next_fhdr_v2->header.length =
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cpu_to_be16(sizeof(flash_header_v2_t));
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next_fhdr_v2->header.version = IVT_VERSION; /* 0x40 */
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next_fhdr_v2->entry = entry_point;
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hdr_base = entry_point - sizeof(struct imx_header);
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next_fhdr_v2->reserved1 = 0;
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next_fhdr_v2->reserved2 = 0;
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next_fhdr_v2->self = hdr_base + imximage_plugin_size;
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next_fhdr_v2->dcd_ptr = 0;
|
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next_fhdr_v2->boot_data_ptr = next_fhdr_v2->self +
|
|
offsetof(imx_header_v2_t, boot_data);
|
|
|
|
next_hdr_v2->boot_data.start = hdr_base - flash_offset;
|
|
|
|
header_size_ptr = &next_hdr_v2->boot_data.size;
|
|
|
|
next_hdr_v2->boot_data.plugin = 0;
|
|
|
|
next_fhdr_v2->csf = 0;
|
|
}
|
|
}
|
|
|
|
static void set_hdr_func(void)
|
|
{
|
|
switch (imximage_version) {
|
|
case IMXIMAGE_V1:
|
|
set_dcd_val = set_dcd_val_v1;
|
|
set_dcd_param = NULL;
|
|
set_dcd_rst = set_dcd_rst_v1;
|
|
set_imx_hdr = set_imx_hdr_v1;
|
|
max_dcd_entries = MAX_HW_CFG_SIZE_V1;
|
|
break;
|
|
case IMXIMAGE_V2:
|
|
gd_last_cmd = NULL;
|
|
set_dcd_val = set_dcd_val_v2;
|
|
set_dcd_param = set_dcd_param_v2;
|
|
set_dcd_rst = set_dcd_rst_v2;
|
|
set_imx_hdr = set_imx_hdr_v2;
|
|
max_dcd_entries = MAX_HW_CFG_SIZE_V2;
|
|
break;
|
|
default:
|
|
err_imximage_version(imximage_version);
|
|
break;
|
|
}
|
|
}
|
|
|
|
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))) {
|
|
fprintf(stderr,
|
|
"Error: Image corrupt DCD size %d exceed maximum %d\n",
|
|
(uint32_t)(size / sizeof(dcd_type_addr_data_t)),
|
|
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\n");
|
|
printf("Image Ver: %x", ver);
|
|
printf("%s\n", get_table_entry_name(imximage_versions, NULL, ver));
|
|
printf("Data Size: ");
|
|
genimg_print_size(dcd_v1->addr_data[length].type);
|
|
printf("Load Address: %08x\n", (uint32_t)fhdr_v1->app_dest_ptr);
|
|
printf("Entry Point: %08x\n", (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->data.dcd_table;
|
|
uint32_t size, version, plugin;
|
|
|
|
plugin = hdr_v2->boot_data.plugin;
|
|
if (!plugin) {
|
|
size = be16_to_cpu(dcd_v2->header.length);
|
|
if (size > (MAX_HW_CFG_SIZE_V2 * sizeof(dcd_addr_data_t))) {
|
|
fprintf(stderr,
|
|
"Error: Image corrupt DCD size %d exceed maximum %d\n",
|
|
(uint32_t)(size / sizeof(dcd_addr_data_t)),
|
|
MAX_HW_CFG_SIZE_V2);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
|
|
version = detect_imximage_version(imx_hdr);
|
|
|
|
printf("Image Type: Freescale IMX Boot Image\n");
|
|
printf("Image Ver: %x", version);
|
|
printf("%s\n", get_table_entry_name(imximage_versions, NULL, version));
|
|
printf("Mode: %s\n", plugin ? "PLUGIN" : "DCD");
|
|
if (!plugin) {
|
|
printf("Data Size: ");
|
|
genimg_print_size(hdr_v2->boot_data.size);
|
|
printf("Load Address: %08x\n", (uint32_t)fhdr_v2->boot_data_ptr);
|
|
printf("Entry Point: %08x\n", (uint32_t)fhdr_v2->entry);
|
|
if (fhdr_v2->csf) {
|
|
uint16_t dcdlen;
|
|
int offs;
|
|
|
|
dcdlen = hdr_v2->data.dcd_table.header.length;
|
|
offs = (char *)&hdr_v2->data.dcd_table
|
|
- (char *)hdr_v2;
|
|
|
|
/*
|
|
* The HAB block is the first part of the image, from
|
|
* start of IVT header (fhdr_v2->self) to the start of
|
|
* the CSF block (fhdr_v2->csf). So HAB size is
|
|
* calculated as:
|
|
* HAB_size = fhdr_v2->csf - fhdr_v2->self
|
|
*/
|
|
printf("HAB Blocks: 0x%08x 0x%08x 0x%08x\n",
|
|
(uint32_t)fhdr_v2->self, 0,
|
|
(uint32_t)(fhdr_v2->csf - fhdr_v2->self));
|
|
printf("DCD Blocks: 0x00910000 0x%08x 0x%08x\n",
|
|
offs, be16_to_cpu(dcdlen));
|
|
}
|
|
} else {
|
|
imx_header_v2_t *next_hdr_v2;
|
|
flash_header_v2_t *next_fhdr_v2;
|
|
|
|
/*First Header*/
|
|
printf("Plugin Data Size: ");
|
|
genimg_print_size(hdr_v2->boot_data.size);
|
|
printf("Plugin Code Size: ");
|
|
genimg_print_size(imximage_plugin_size);
|
|
printf("Plugin Load Address: %08x\n", hdr_v2->boot_data.start);
|
|
printf("Plugin Entry Point: %08x\n", (uint32_t)fhdr_v2->entry);
|
|
|
|
/*Second Header*/
|
|
next_hdr_v2 = (imx_header_v2_t *)((char *)hdr_v2 +
|
|
imximage_plugin_size);
|
|
next_fhdr_v2 = &next_hdr_v2->fhdr;
|
|
printf("U-Boot Data Size: ");
|
|
genimg_print_size(next_hdr_v2->boot_data.size);
|
|
printf("U-Boot Load Address: %08x\n",
|
|
next_hdr_v2->boot_data.start);
|
|
printf("U-Boot Entry Point: %08x\n",
|
|
(uint32_t)next_fhdr_v2->entry);
|
|
}
|
|
}
|
|
|
|
static void copy_plugin_code(struct imx_header *imxhdr, char *plugin_file)
|
|
{
|
|
int ifd;
|
|
struct stat sbuf;
|
|
char *plugin_buf = imxhdr->header.hdr_v2.data.plugin_code;
|
|
char *ptr;
|
|
|
|
ifd = open(plugin_file, O_RDONLY|O_BINARY);
|
|
if (ifd < 0) {
|
|
fprintf(stderr, "Can't open %s: %s\n",
|
|
plugin_file,
|
|
strerror(errno));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
if (fstat(ifd, &sbuf) < 0) {
|
|
fprintf(stderr, "Can't stat %s: %s\n",
|
|
plugin_file,
|
|
strerror(errno));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
ptr = mmap(0, sbuf.st_size, PROT_READ, MAP_SHARED, ifd, 0);
|
|
if (ptr == MAP_FAILED) {
|
|
fprintf(stderr, "Can't read %s: %s\n",
|
|
plugin_file,
|
|
strerror(errno));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
if (sbuf.st_size > MAX_PLUGIN_CODE_SIZE) {
|
|
printf("plugin binary size too large\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
memcpy(plugin_buf, ptr, sbuf.st_size);
|
|
imximage_plugin_size = sbuf.st_size;
|
|
|
|
(void) munmap((void *)ptr, sbuf.st_size);
|
|
(void) close(ifd);
|
|
|
|
imxhdr->header.hdr_v2.boot_data.plugin = 1;
|
|
}
|
|
|
|
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\n", name, lineno);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
cmd_ver_first = 1;
|
|
set_hdr_func();
|
|
break;
|
|
case CMD_BOOT_FROM:
|
|
imximage_ivt_offset = get_table_entry_id(imximage_boot_offset,
|
|
"imximage boot option", token);
|
|
if (imximage_ivt_offset == -1) {
|
|
fprintf(stderr, "Error: %s[%d] -Invalid boot device"
|
|
"(%s)\n", name, lineno, token);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
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)\n",
|
|
name, lineno, token);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
/*
|
|
* 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;
|
|
if (unlikely(cmd_ver_first != 1))
|
|
cmd_ver_first = 0;
|
|
break;
|
|
case CMD_BOOT_OFFSET:
|
|
imximage_ivt_offset = get_cfg_value(token, name, lineno);
|
|
if (unlikely(cmd_ver_first != 1))
|
|
cmd_ver_first = 0;
|
|
break;
|
|
case CMD_WRITE_DATA:
|
|
case CMD_WRITE_CLR_BIT:
|
|
case CMD_WRITE_SET_BIT:
|
|
case CMD_CHECK_BITS_SET:
|
|
case CMD_CHECK_BITS_CLR:
|
|
value = get_cfg_value(token, name, lineno);
|
|
if (set_dcd_param)
|
|
(*set_dcd_param)(imxhdr, dcd_len, cmd);
|
|
(*set_dcd_val)(imxhdr, name, lineno, fld, value, dcd_len);
|
|
if (unlikely(cmd_ver_first != 1))
|
|
cmd_ver_first = 0;
|
|
break;
|
|
case CMD_CSF:
|
|
if (imximage_version != 2) {
|
|
fprintf(stderr,
|
|
"Error: %s[%d] - CSF only supported for VERSION 2(%s)\n",
|
|
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;
|
|
case CMD_PLUGIN:
|
|
plugin_image = 1;
|
|
copy_plugin_code(imxhdr, token);
|
|
break;
|
|
}
|
|
}
|
|
|
|
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)\n", 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:
|
|
switch(*cmd) {
|
|
case CMD_WRITE_DATA:
|
|
case CMD_WRITE_CLR_BIT:
|
|
case CMD_WRITE_SET_BIT:
|
|
case CMD_CHECK_BITS_SET:
|
|
case CMD_CHECK_BITS_CLR:
|
|
|
|
value = get_cfg_value(token, name, lineno);
|
|
if (set_dcd_param)
|
|
(*set_dcd_param)(imxhdr, *dcd_len, *cmd);
|
|
(*set_dcd_val)(imxhdr, name, lineno, fld, value,
|
|
*dcd_len);
|
|
|
|
if (fld == CFG_REG_VALUE) {
|
|
(*dcd_len)++;
|
|
if (*dcd_len > max_dcd_entries) {
|
|
fprintf(stderr, "Error: %s[%d] -"
|
|
"DCD table exceeds maximum size(%d)\n",
|
|
name, lineno, max_dcd_entries);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
}
|
|
break;
|
|
case CMD_PLUGIN:
|
|
value = get_cfg_value(token, name, lineno);
|
|
imximage_iram_free_start = value;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
static uint32_t parse_cfg_file(struct imx_header *imxhdr, char *name)
|
|
{
|
|
FILE *fd = NULL;
|
|
char *line = NULL;
|
|
char *token, *saveptr1, *saveptr2;
|
|
int lineno = 0;
|
|
int fld;
|
|
size_t len;
|
|
int dcd_len = 0;
|
|
int32_t cmd;
|
|
|
|
fd = fopen(name, "r");
|
|
if (fd == 0) {
|
|
fprintf(stderr, "Error: %s - Can't open DCD file\n", name);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
/*
|
|
* Very simple parsing, line starting with # are comments
|
|
* and are dropped
|
|
*/
|
|
while ((getline(&line, &len, fd)) > 0) {
|
|
lineno++;
|
|
|
|
token = strtok_r(line, "\r\n", &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;
|
|
|
|
parse_cfg_fld(imxhdr, &cmd, token, name,
|
|
lineno, fld, &dcd_len);
|
|
}
|
|
|
|
}
|
|
|
|
(*set_dcd_rst)(imxhdr, dcd_len, name, lineno);
|
|
fclose(fd);
|
|
|
|
/* Exit if there is no BOOT_FROM field specifying the flash_offset */
|
|
if (imximage_ivt_offset == FLASH_OFFSET_UNDEFINED) {
|
|
fprintf(stderr, "Error: No BOOT_FROM tag in %s\n", name);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
return dcd_len;
|
|
}
|
|
|
|
|
|
static int imximage_check_image_types(uint8_t type)
|
|
{
|
|
if (type == IH_TYPE_IMXIMAGE)
|
|
return EXIT_SUCCESS;
|
|
else
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
static int imximage_verify_header(unsigned char *ptr, int image_size,
|
|
struct image_tool_params *params)
|
|
{
|
|
struct imx_header *imx_hdr = (struct imx_header *) ptr;
|
|
|
|
if (detect_imximage_version(imx_hdr) == IMXIMAGE_VER_INVALID)
|
|
return -FDT_ERR_BADSTRUCTURE;
|
|
|
|
return 0;
|
|
}
|
|
|
|
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;
|
|
}
|
|
}
|
|
|
|
static void imximage_set_header(void *ptr, struct stat *sbuf, int ifd,
|
|
struct image_tool_params *params)
|
|
{
|
|
struct imx_header *imxhdr = (struct imx_header *)ptr;
|
|
uint32_t dcd_len;
|
|
uint32_t header_size;
|
|
|
|
/*
|
|
* 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;
|
|
set_hdr_func();
|
|
|
|
/* Parse dcd configuration file */
|
|
dcd_len = parse_cfg_file(imxhdr, params->imagename);
|
|
|
|
if (imximage_version == IMXIMAGE_V1)
|
|
header_size = sizeof(flash_header_v1_t);
|
|
else {
|
|
header_size = sizeof(flash_header_v2_t) + sizeof(boot_data_t);
|
|
if (!plugin_image)
|
|
header_size += sizeof(dcd_v2_t);
|
|
else
|
|
header_size += MAX_PLUGIN_CODE_SIZE;
|
|
}
|
|
|
|
if (imximage_init_loadsize < imximage_ivt_offset + header_size)
|
|
imximage_init_loadsize = imximage_ivt_offset + header_size;
|
|
|
|
/* Set the imx header */
|
|
(*set_imx_hdr)(imxhdr, dcd_len, params->ep, imximage_ivt_offset);
|
|
|
|
/*
|
|
* ROM bug alert
|
|
*
|
|
* 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!
|
|
*/
|
|
*header_size_ptr = ROUND((sbuf->st_size + imximage_ivt_offset), 4096);
|
|
|
|
if (csf_ptr && imximage_csf_size) {
|
|
*csf_ptr = params->ep - imximage_init_loadsize +
|
|
*header_size_ptr;
|
|
*header_size_ptr += imximage_csf_size;
|
|
}
|
|
}
|
|
|
|
int imximage_check_params(struct image_tool_params *params)
|
|
{
|
|
if (!params)
|
|
return CFG_INVALID;
|
|
if (!strlen(params->imagename)) {
|
|
fprintf(stderr, "Error: %s - Configuration file not specified, "
|
|
"it is needed for imximage generation\n",
|
|
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));
|
|
}
|
|
|
|
static int imximage_generate(struct image_tool_params *params,
|
|
struct image_type_params *tparams)
|
|
{
|
|
struct imx_header *imxhdr;
|
|
size_t alloc_len;
|
|
struct stat sbuf;
|
|
char *datafile = params->datafile;
|
|
uint32_t pad_len, header_size;
|
|
|
|
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;
|
|
set_hdr_func();
|
|
|
|
/* Parse dcd configuration file */
|
|
parse_cfg_file(&imximage_header, params->imagename);
|
|
|
|
if (imximage_version == IMXIMAGE_V1)
|
|
header_size = sizeof(imx_header_v1_t);
|
|
else {
|
|
header_size = sizeof(flash_header_v2_t) + sizeof(boot_data_t);
|
|
if (!plugin_image)
|
|
header_size += sizeof(dcd_v2_t);
|
|
else
|
|
header_size += MAX_PLUGIN_CODE_SIZE;
|
|
}
|
|
|
|
if (imximage_init_loadsize < imximage_ivt_offset + header_size)
|
|
imximage_init_loadsize = imximage_ivt_offset + header_size;
|
|
|
|
alloc_len = imximage_init_loadsize - imximage_ivt_offset;
|
|
|
|
if (alloc_len < header_size) {
|
|
fprintf(stderr, "%s: header error\n",
|
|
params->cmdname);
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
imxhdr = malloc(alloc_len);
|
|
|
|
if (!imxhdr) {
|
|
fprintf(stderr, "%s: malloc return failure: %s\n",
|
|
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\n",
|
|
params->cmdname, datafile, strerror(errno));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
pad_len = ROUND(sbuf.st_size, 4096) - sbuf.st_size;
|
|
|
|
return pad_len;
|
|
}
|
|
|
|
|
|
/*
|
|
* imximage parameters
|
|
*/
|
|
U_BOOT_IMAGE_TYPE(
|
|
imximage,
|
|
"Freescale i.MX Boot Image support",
|
|
0,
|
|
NULL,
|
|
imximage_check_params,
|
|
imximage_verify_header,
|
|
imximage_print_header,
|
|
imximage_set_header,
|
|
NULL,
|
|
imximage_check_image_types,
|
|
NULL,
|
|
imximage_generate
|
|
);
|