mirror of
https://github.com/AsahiLinux/u-boot
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163967905f
Each image handler must return a not-zero velue if the header is not recognized to allow the main program to iterate to the next handler. Signed-off-by: Stefano Babic <sbabic@denx.de> CC: Heiko Schocher <hs@denx.de> Acked-by: Heiko Schocher <hs@denx.de>
280 lines
7.1 KiB
C
280 lines
7.1 KiB
C
/*
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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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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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/* Required to obtain the getline prototype from stdio.h */
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#define _GNU_SOURCE
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#include "mkimage.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 mkimage_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 mkimage_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 mkimage_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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static struct image_type_params ublimage_params = {
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.name = "Davinci UBL boot support",
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.header_size = sizeof(struct ubl_header),
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.hdr = (void *)&ublimage_header,
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.check_image_type = ublimage_check_image_types,
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.verify_header = ublimage_verify_header,
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.print_header = ublimage_print_header,
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.set_header = ublimage_set_header,
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.check_params = ublimage_check_params,
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};
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void init_ubl_image_type(void)
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{
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mkimage_register(&ublimage_params);
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}
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