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https://github.com/AsahiLinux/u-boot
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cf7aa03543
Instead of always retuning success, return actual result of load_simple_fit_image or spl_parse_image_header, otherwise we might end up jumping on uninitialized spl_image->entry_point. Signed-off-by: Nikita Shubin <n.shubin@yadro.com> Reviewed-by: Stefan Roese <sr@denx.de>
99 lines
2.4 KiB
C
99 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2016
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* Xilinx, Inc.
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*
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* (C) Copyright 2016
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* Toradex AG
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*
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* Michal Simek <michal.simek@xilinx.com>
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* Stefan Agner <stefan.agner@toradex.com>
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*/
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#include <common.h>
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#include <binman_sym.h>
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#include <image.h>
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#include <log.h>
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#include <mapmem.h>
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#include <spl.h>
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#include <linux/libfdt.h>
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static ulong spl_ram_load_read(struct spl_load_info *load, ulong sector,
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ulong count, void *buf)
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{
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ulong addr;
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debug("%s: sector %lx, count %lx, buf %lx\n",
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__func__, sector, count, (ulong)buf);
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addr = (ulong)CONFIG_SPL_LOAD_FIT_ADDRESS + sector;
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if (CONFIG_IS_ENABLED(IMAGE_PRE_LOAD))
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addr += image_load_offset;
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memcpy(buf, (void *)addr, count);
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return count;
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}
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static int spl_ram_load_image(struct spl_image_info *spl_image,
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struct spl_boot_device *bootdev)
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{
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struct legacy_img_hdr *header;
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int ret;
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header = (struct legacy_img_hdr *)CONFIG_SPL_LOAD_FIT_ADDRESS;
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if (CONFIG_IS_ENABLED(IMAGE_PRE_LOAD)) {
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unsigned long addr = (unsigned long)header;
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ret = image_pre_load(addr);
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if (ret)
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return ret;
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addr += image_load_offset;
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header = (struct legacy_img_hdr *)addr;
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}
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#if CONFIG_IS_ENABLED(DFU)
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if (bootdev->boot_device == BOOT_DEVICE_DFU)
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spl_dfu_cmd(0, "dfu_alt_info_ram", "ram", "0");
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#endif
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if (IS_ENABLED(CONFIG_SPL_LOAD_FIT) &&
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image_get_magic(header) == FDT_MAGIC) {
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struct spl_load_info load;
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debug("Found FIT\n");
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load.bl_len = 1;
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load.read = spl_ram_load_read;
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ret = spl_load_simple_fit(spl_image, &load, 0, header);
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} else {
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ulong u_boot_pos = spl_get_image_pos();
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debug("Legacy image\n");
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/*
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* Get the header. It will point to an address defined by
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* handoff which will tell where the image located inside
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* the flash.
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*/
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debug("u_boot_pos = %lx\n", u_boot_pos);
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if (u_boot_pos == BINMAN_SYM_MISSING) {
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/*
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* No binman support or no information. For now, fix it
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* to the address pointed to by U-Boot.
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*/
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u_boot_pos = (ulong)spl_get_load_buffer(-sizeof(*header),
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sizeof(*header));
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}
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header = (struct legacy_img_hdr *)map_sysmem(u_boot_pos, 0);
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ret = spl_parse_image_header(spl_image, bootdev, header);
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}
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return ret;
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}
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#if CONFIG_IS_ENABLED(RAM_DEVICE)
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SPL_LOAD_IMAGE_METHOD("RAM", 0, BOOT_DEVICE_RAM, spl_ram_load_image);
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#endif
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#if CONFIG_IS_ENABLED(DFU)
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SPL_LOAD_IMAGE_METHOD("DFU", 0, BOOT_DEVICE_DFU, spl_ram_load_image);
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#endif
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