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https://github.com/AsahiLinux/u-boot
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7b86cd4274
Add parsing i.MX8 Container file support, this is to let SPL could load images in a container file to destination address. Signed-off-by: Peng Fan <peng.fan@nxp.com>
120 lines
2.9 KiB
C
120 lines
2.9 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2018-2019 NXP
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*/
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#include <common.h>
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#include <errno.h>
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#include <spl.h>
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#include <asm/arch/image.h>
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static struct boot_img_t *read_auth_image(struct spl_image_info *spl_image,
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struct spl_load_info *info,
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struct container_hdr *container,
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int image_index,
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u32 container_sector)
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{
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struct boot_img_t *images;
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ulong sector;
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u32 sectors;
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if (image_index > container->num_images) {
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debug("Invalid image number\n");
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return NULL;
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}
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images = (struct boot_img_t *)((u8 *)container +
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sizeof(struct container_hdr));
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if (images[image_index].offset % info->bl_len) {
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printf("%s: image%d offset not aligned to %u\n",
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__func__, image_index, info->bl_len);
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return NULL;
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}
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sectors = roundup(images[image_index].size, info->bl_len) /
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info->bl_len;
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sector = images[image_index].offset / info->bl_len +
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container_sector;
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debug("%s: container: %p sector: %lu sectors: %u\n", __func__,
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container, sector, sectors);
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if (info->read(info, sector, sectors,
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(void *)images[image_index].entry) != sectors) {
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printf("%s wrong\n", __func__);
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return NULL;
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}
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return &images[image_index];
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}
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static int read_auth_container(struct spl_image_info *spl_image,
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struct spl_load_info *info, ulong sector)
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{
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struct container_hdr *container = NULL;
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u16 length;
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u32 sectors;
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int i, size;
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size = roundup(CONTAINER_HDR_ALIGNMENT, info->bl_len);
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sectors = size / info->bl_len;
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/*
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* It will not override the ATF code, so safe to use it here,
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* no need malloc
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*/
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container = (struct container_hdr *)spl_get_load_buffer(-size, size);
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debug("%s: container: %p sector: %lu sectors: %u\n", __func__,
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container, sector, sectors);
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if (info->read(info, sector, sectors, container) != sectors)
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return -EIO;
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if (container->tag != 0x87 && container->version != 0x0) {
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printf("Wrong container header");
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return -ENOENT;
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}
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if (!container->num_images) {
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printf("Wrong container, no image found");
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return -ENOENT;
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}
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length = container->length_lsb + (container->length_msb << 8);
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debug("Container length %u\n", length);
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if (length > CONTAINER_HDR_ALIGNMENT) {
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size = roundup(length, info->bl_len);
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sectors = size / info->bl_len;
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container = (struct container_hdr *)spl_get_load_buffer(-size, size);
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debug("%s: container: %p sector: %lu sectors: %u\n",
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__func__, container, sector, sectors);
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if (info->read(info, sector, sectors, container) !=
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sectors)
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return -EIO;
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}
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for (i = 0; i < container->num_images; i++) {
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struct boot_img_t *image = read_auth_image(spl_image, info,
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container, i,
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sector);
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if (!image)
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return -EINVAL;
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if (i == 0) {
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spl_image->load_addr = image->dst;
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spl_image->entry_point = image->entry;
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}
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}
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return 0;
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}
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int spl_load_imx_container(struct spl_image_info *spl_image,
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struct spl_load_info *info, ulong sector)
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{
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return read_auth_container(spl_image, info, sector);
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}
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