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https://github.com/brain-hackers/u-boot-brain
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![Tom Rini](/assets/img/avatar_default.png)
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
260 lines
6.1 KiB
C
260 lines
6.1 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2011
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* Heiko Schocher, DENX Software Engineering, hs@denx.de.
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*
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* Based on:
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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 "ublimage.h"
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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 ublimage_cmds[] = {
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{CMD_BOOT_MODE, "MODE", "UBL special modes", },
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{CMD_ENTRY, "ENTRY", "Entry point addr for bootloader", },
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{CMD_PAGE, "PAGES",
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"number of pages (size of bootloader)", },
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{CMD_ST_BLOCK, "START_BLOCK",
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"block number where bootloader is present", },
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{CMD_ST_PAGE, "START_PAGE",
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"page number where bootloader is present", },
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{CMD_LD_ADDR, "LD_ADDR",
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"load 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 ublimage_bootops[] = {
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{UBL_MAGIC_SAFE, "safe", "Safe boot mode", },
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{-1, "", "Invalid", },
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};
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static struct ubl_header ublimage_header;
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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 void print_hdr(struct ubl_header *ubl_hdr)
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{
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printf("Image Type : Davinci UBL Boot Image\n");
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printf("UBL magic : %08x\n", ubl_hdr->magic);
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printf("Entry Point: %08x\n", ubl_hdr->entry);
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printf("nr of pages: %08x\n", ubl_hdr->pages);
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printf("start block: %08x\n", ubl_hdr->block);
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printf("start page : %08x\n", ubl_hdr->page);
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}
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static void parse_cfg_cmd(struct ubl_header *ublhdr, int32_t cmd, char *token,
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char *name, int lineno, int fld, int dcd_len)
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{
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static int cmd_ver_first = ~0;
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switch (cmd) {
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case CMD_BOOT_MODE:
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ublhdr->magic = get_table_entry_id(ublimage_bootops,
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"ublimage special boot mode", token);
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if (ublhdr->magic == -1) {
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fprintf(stderr, "Error: %s[%d] -Invalid boot mode"
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"(%s)\n", name, lineno, token);
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exit(EXIT_FAILURE);
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}
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ublhdr->magic += UBL_MAGIC_BASE;
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if (unlikely(cmd_ver_first != 1))
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cmd_ver_first = 0;
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break;
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case CMD_ENTRY:
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ublhdr->entry = get_cfg_value(token, name, lineno);
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break;
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case CMD_PAGE:
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ublhdr->pages = get_cfg_value(token, name, lineno);
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break;
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case CMD_ST_BLOCK:
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ublhdr->block = get_cfg_value(token, name, lineno);
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break;
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case CMD_ST_PAGE:
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ublhdr->page = get_cfg_value(token, name, lineno);
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break;
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case CMD_LD_ADDR:
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ublhdr->pll_m = get_cfg_value(token, name, lineno);
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break;
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}
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}
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static void parse_cfg_fld(struct ubl_header *ublhdr, int32_t *cmd,
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char *token, char *name, int lineno, int fld, int *dcd_len)
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{
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switch (fld) {
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case CFG_COMMAND:
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*cmd = get_table_entry_id(ublimage_cmds,
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"ublimage commands", token);
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if (*cmd < 0) {
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fprintf(stderr, "Error: %s[%d] - Invalid command"
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"(%s)\n", name, lineno, token);
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exit(EXIT_FAILURE);
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}
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break;
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case CFG_REG_VALUE:
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parse_cfg_cmd(ublhdr, *cmd, token, name, lineno, fld, *dcd_len);
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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 uint32_t parse_cfg_file(struct ubl_header *ublhdr, char *name)
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{
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FILE *fd = NULL;
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char *line = NULL;
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char *token, *saveptr1, *saveptr2;
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int lineno = 0;
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int i;
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char *ptr = (char *)ublhdr;
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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;
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int ublhdrlen = sizeof(struct ubl_header);
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fd = fopen(name, "r");
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if (fd == 0) {
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fprintf(stderr, "Error: %s - Can't open DCD file\n", name);
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exit(EXIT_FAILURE);
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}
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/* Fill header with 0xff */
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for (i = 0; i < ublhdrlen; i++) {
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*ptr = 0xff;
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ptr++;
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}
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/*
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* Very simple parsing, line starting with # are comments
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* and are dropped
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*/
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while ((getline(&line, &len, fd)) > 0) {
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lineno++;
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token = strtok_r(line, "\r\n", &saveptr1);
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if (token == NULL)
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continue;
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/* Check inside the single line */
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for (fld = CFG_COMMAND, cmd = CMD_INVALID,
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line = token; ; line = NULL, fld++) {
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token = strtok_r(line, " \t", &saveptr2);
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if (token == NULL)
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break;
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/* Drop all text starting with '#' as comments */
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if (token[0] == '#')
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break;
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parse_cfg_fld(ublhdr, &cmd, token, name,
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lineno, fld, &dcd_len);
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}
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}
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fclose(fd);
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return dcd_len;
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}
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static int ublimage_check_image_types(uint8_t type)
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{
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if (type == IH_TYPE_UBLIMAGE)
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return EXIT_SUCCESS;
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else
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return EXIT_FAILURE;
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}
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static int ublimage_verify_header(unsigned char *ptr, int image_size,
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struct image_tool_params *params)
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{
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struct ubl_header *ubl_hdr = (struct ubl_header *)ptr;
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if ((ubl_hdr->magic & 0xFFFFFF00) != UBL_MAGIC_BASE)
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return -1;
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return 0;
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}
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static void ublimage_print_header(const void *ptr)
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{
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struct ubl_header *ubl_hdr = (struct ubl_header *) ptr;
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print_hdr(ubl_hdr);
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}
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static void ublimage_set_header(void *ptr, struct stat *sbuf, int ifd,
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struct image_tool_params *params)
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{
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struct ubl_header *ublhdr = (struct ubl_header *)ptr;
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/* Parse configuration file */
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parse_cfg_file(ublhdr, params->imagename);
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}
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int ublimage_check_params(struct image_tool_params *params)
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{
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if (!params)
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return CFG_INVALID;
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if (!strlen(params->imagename)) {
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fprintf(stderr, "Error: %s - Configuration file not"
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"specified, it is needed for ublimage generation\n",
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params->cmdname);
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return CFG_INVALID;
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}
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/*
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* Check parameters:
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* XIP is not allowed and verify that incompatible
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* parameters are not sent at the same time
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* For example, if list is required a data image must not be provided
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*/
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return (params->dflag && (params->fflag || params->lflag)) ||
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(params->fflag && (params->dflag || params->lflag)) ||
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(params->lflag && (params->dflag || params->fflag)) ||
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(params->xflag) || !(strlen(params->imagename));
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}
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/*
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* ublimage parameters
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*/
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U_BOOT_IMAGE_TYPE(
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ublimage,
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"Davinci UBL boot support",
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sizeof(struct ubl_header),
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(void *)&ublimage_header,
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ublimage_check_params,
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ublimage_verify_header,
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ublimage_print_header,
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ublimage_set_header,
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NULL,
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ublimage_check_image_types,
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NULL,
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NULL
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);
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