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79b9ebb700
Add MLO.byteswap as a target to spl/Makefile and un-guard the first MLO rule so we don't have to duplicate it. Signed-off-by: Tom Rini <trini@ti.com>
270 lines
6.6 KiB
C
270 lines
6.6 KiB
C
/*
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* (C) Copyright 2010
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* Linaro LTD, www.linaro.org
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* Author: John Rigby <john.rigby@linaro.org>
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* Based on TI's signGP.c
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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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* 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 "omapimage.h"
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/* Header size is CH header rounded up to 512 bytes plus GP header */
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#define OMAP_CH_HDR_SIZE 512
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#define OMAP_GP_HDR_SIZE (sizeof(struct gp_header))
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#define OMAP_FILE_HDR_SIZE (OMAP_CH_HDR_SIZE+OMAP_GP_HDR_SIZE)
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static int do_swap32 = 0;
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static uint32_t omapimage_swap32(uint32_t data)
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{
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uint32_t result = 0;
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result = (data & 0xFF000000) >> 24;
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result |= (data & 0x00FF0000) >> 8;
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result |= (data & 0x0000FF00) << 8;
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result |= (data & 0x000000FF) << 24;
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return result;
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}
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static uint8_t omapimage_header[OMAP_FILE_HDR_SIZE];
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static int omapimage_check_image_types(uint8_t type)
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{
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if (type == IH_TYPE_OMAPIMAGE)
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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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}
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/*
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* Only the simplest image type is currently supported:
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* TOC pointing to CHSETTINGS
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* TOC terminator
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* CHSETTINGS
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*
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* padding to OMAP_CH_HDR_SIZE bytes
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*
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* gp header
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* size
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* load_addr
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*/
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static int valid_gph_size(uint32_t size)
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{
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return size;
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}
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static int valid_gph_load_addr(uint32_t load_addr)
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{
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return load_addr;
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}
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static int omapimage_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 ch_toc *toc = (struct ch_toc *)ptr;
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struct gp_header *gph = (struct gp_header *)(ptr+OMAP_CH_HDR_SIZE);
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uint32_t offset, size, gph_size, gph_load_addr;
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while (toc->section_offset != 0xffffffff
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&& toc->section_size != 0xffffffff) {
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if (do_swap32) {
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offset = omapimage_swap32(toc->section_offset);
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size = omapimage_swap32(toc->section_size);
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} else {
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offset = toc->section_offset;
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size = toc->section_size;
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}
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if (!offset || !size)
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return -1;
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if (offset >= OMAP_CH_HDR_SIZE ||
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offset+size >= OMAP_CH_HDR_SIZE)
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return -1;
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toc++;
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}
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if (do_swap32) {
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gph_size = omapimage_swap32(gph->size);
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gph_load_addr = omapimage_swap32(gph->load_addr);
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} else {
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gph_size = gph->size;
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gph_load_addr = gph->load_addr;
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}
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if (!valid_gph_size(gph_size))
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return -1;
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if (!valid_gph_load_addr(gph_load_addr))
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return -1;
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return 0;
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}
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static void omapimage_print_section(struct ch_settings *chs)
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{
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const char *section_name;
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if (chs->section_key)
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section_name = "CHSETTINGS";
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else
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section_name = "UNKNOWNKEY";
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printf("%s (%x) "
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"valid:%x "
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"version:%x "
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"reserved:%x "
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"flags:%x\n",
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section_name,
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chs->section_key,
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chs->valid,
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chs->version,
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chs->reserved,
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chs->flags);
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}
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static void omapimage_print_header(const void *ptr)
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{
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const struct ch_toc *toc = (struct ch_toc *)ptr;
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const struct gp_header *gph =
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(struct gp_header *)(ptr+OMAP_CH_HDR_SIZE);
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uint32_t offset, size, gph_size, gph_load_addr;
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while (toc->section_offset != 0xffffffff
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&& toc->section_size != 0xffffffff) {
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if (do_swap32) {
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offset = omapimage_swap32(toc->section_offset);
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size = omapimage_swap32(toc->section_size);
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} else {
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offset = toc->section_offset;
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size = toc->section_size;
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}
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if (offset >= OMAP_CH_HDR_SIZE ||
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offset+size >= OMAP_CH_HDR_SIZE)
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exit(EXIT_FAILURE);
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printf("Section %s offset %x length %x\n",
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toc->section_name,
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toc->section_offset,
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toc->section_size);
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omapimage_print_section((struct ch_settings *)(ptr+offset));
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toc++;
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}
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if (do_swap32) {
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gph_size = omapimage_swap32(gph->size);
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gph_load_addr = omapimage_swap32(gph->load_addr);
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} else {
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gph_size = gph->size;
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gph_load_addr = gph->load_addr;
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}
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if (!valid_gph_size(gph_size)) {
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fprintf(stderr, "Error: invalid image size %x\n", gph_size);
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exit(EXIT_FAILURE);
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}
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if (!valid_gph_load_addr(gph_load_addr)) {
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fprintf(stderr, "Error: invalid image load address %x\n",
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gph_load_addr);
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exit(EXIT_FAILURE);
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}
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printf("GP Header: Size %x LoadAddr %x\n", gph_size, gph_load_addr);
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}
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static int toc_offset(void *hdr, void *member)
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{
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return member - hdr;
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}
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static void omapimage_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 ch_toc *toc = (struct ch_toc *)ptr;
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struct ch_settings *chs = (struct ch_settings *)
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(ptr + 2 * sizeof(*toc));
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struct gp_header *gph = (struct gp_header *)(ptr + OMAP_CH_HDR_SIZE);
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toc->section_offset = toc_offset(ptr, chs);
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toc->section_size = sizeof(struct ch_settings);
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strcpy((char *)toc->section_name, "CHSETTINGS");
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chs->section_key = KEY_CHSETTINGS;
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chs->valid = 0;
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chs->version = 1;
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chs->reserved = 0;
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chs->flags = 0;
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toc++;
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memset(toc, 0xff, sizeof(*toc));
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gph->size = sbuf->st_size - OMAP_FILE_HDR_SIZE;
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gph->load_addr = params->addr;
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if (strncmp(params->imagename, "byteswap", 8) == 0) {
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do_swap32 = 1;
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int swapped = 0;
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uint32_t *data = (uint32_t *)ptr;
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while (swapped <= (sbuf->st_size / sizeof(uint32_t))) {
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*data = omapimage_swap32(*data);
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swapped++;
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data++;
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}
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}
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}
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int omapimage_check_params(struct mkimage_params *params)
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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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}
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/*
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* omapimage parameters
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*/
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static struct image_type_params omapimage_params = {
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.name = "TI OMAP CH/GP Boot Image support",
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.header_size = OMAP_FILE_HDR_SIZE,
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.hdr = (void *)&omapimage_header,
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.check_image_type = omapimage_check_image_types,
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.verify_header = omapimage_verify_header,
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.print_header = omapimage_print_header,
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.set_header = omapimage_set_header,
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.check_params = omapimage_check_params,
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};
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void init_omap_image_type(void)
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{
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mkimage_register(&omapimage_params);
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}
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