110 lines
2.6 KiB
C
110 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright (C) 2012 Stefan Roese <sr@denx.de>
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*/
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#include <config.h>
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#include <image.h>
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#include <imx_container.h>
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#include <log.h>
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#include <spl.h>
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#include <spl_load.h>
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static ulong spl_nor_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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debug("%s: sector %lx, count %lx, buf %p\n",
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__func__, sector, count, buf);
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memcpy(buf, map_sysmem(sector, count), count);
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return count;
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}
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unsigned long __weak spl_nor_get_uboot_base(void)
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{
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return CFG_SYS_UBOOT_BASE;
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}
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#if IS_ENABLED(CONFIG_SPL_OS_BOOT)
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static int spl_nor_load_image_os(struct spl_image_info *spl_image,
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struct spl_boot_device *bootdev)
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{
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/*
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* Load Linux from its location in NOR flash to its defined
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* location in SDRAM
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*/
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const struct legacy_img_hdr *header =
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(const struct legacy_img_hdr *)CONFIG_SYS_OS_BASE;
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struct spl_load_info load;
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#ifdef CONFIG_SPL_LOAD_FIT
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if (image_get_magic(header) == FDT_MAGIC) {
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int ret;
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debug("Found FIT\n");
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spl_load_init(&load, spl_nor_load_read, NULL, 1);
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ret = spl_load_simple_fit(spl_image, &load, CONFIG_SYS_OS_BASE,
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(void *)header);
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#if defined CONFIG_SPL_PAYLOAD_ARGS_ADDR && defined CONFIG_CMD_SPL_NOR_OFS
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memcpy((void *)CONFIG_SPL_PAYLOAD_ARGS_ADDR,
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(void *)CONFIG_CMD_SPL_NOR_OFS,
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CONFIG_CMD_SPL_WRITE_SIZE);
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#endif
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return ret;
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}
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#endif
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if (image_get_os(header) != IH_OS_LINUX)
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return -EINVAL;
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/* happy - was a Linux */
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int ret;
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ret = spl_parse_image_header(spl_image, bootdev, header);
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if (ret)
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return ret;
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memcpy((void *)spl_image->load_addr,
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(void *)(CONFIG_SYS_OS_BASE + sizeof(struct legacy_img_hdr)),
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spl_image->size);
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return 0;
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}
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#endif
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static int spl_nor_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 spl_load_info load;
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/*
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* Loading of the payload to SDRAM is done with skipping of
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* the mkimage header in this SPL NOR driver
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*/
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spl_image->flags |= SPL_COPY_PAYLOAD_ONLY;
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#if IS_ENABLED(CONFIG_SPL_OS_BOOT)
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int err;
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if (!spl_start_uboot()) {
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err = spl_nor_load_image_os(spl_image, bootdev);
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if (!err)
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return 0;
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printf("%s: Failed in falcon boot: %d", __func__, err);
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if (IS_ENABLED(CONFIG_SPL_OS_BOOT_SECURE))
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return err;
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printf("Fallback to U-Boot\n");
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}
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#endif
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/*
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* Load real U-Boot from its location in NOR flash to its
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* defined location in SDRAM
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*/
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spl_load_init(&load, spl_nor_load_read, NULL, 1);
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return spl_load(spl_image, bootdev, &load, 0, spl_nor_get_uboot_base());
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}
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SPL_LOAD_IMAGE_METHOD("NOR", 0, BOOT_DEVICE_NOR, spl_nor_load_image);
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