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// SPDX-License-Identifier: GPL-2.0-only
// SPDX-FileCopyrightText: 2018 Sascha Hauer <s.hauer@pengutronix.de>
#define pr_fmt(fmt) "booti: " fmt
#include <common.h>
#include <memory.h>
#include <bootm.h>
#include <linux/sizes.h>
static unsigned long get_kernel_address(unsigned long os_address,
unsigned long text_offset)
{
resource_size_t start, end;
int ret;
if (os_address == UIMAGE_SOME_ADDRESS ||
os_address == UIMAGE_INVALID_ADDRESS) {
ret = memory_bank_first_find_space(&start, &end);
if (ret)
return UIMAGE_INVALID_ADDRESS;
return ALIGN(start, SZ_2M) + text_offset;
}
if (os_address >= text_offset && IS_ALIGNED(os_address - text_offset, SZ_2M))
return os_address;
return ALIGN(os_address, SZ_2M) + text_offset;
}
void *booti_load_image(struct image_data *data, phys_addr_t *oftree)
{
const void *kernel_header =
data->os_fit ? data->fit_kernel : data->os_header;
unsigned long text_offset, image_size, devicetree, kernel;
unsigned long image_end;
int ret;
void *fdt;
text_offset = le64_to_cpup(kernel_header + 8);
image_size = le64_to_cpup(kernel_header + 16);
kernel = get_kernel_address(data->os_address, text_offset);
print_hex_dump_bytes("header ", DUMP_PREFIX_OFFSET,
kernel_header, 80);
pr_debug("Kernel to be loaded to %lx+%lx\n", kernel, image_size);
if (kernel == UIMAGE_INVALID_ADDRESS)
return ERR_PTR(-ENOENT);
ret = bootm_load_os(data, kernel);
if (ret)
return ERR_PTR(ret);
image_end = PAGE_ALIGN(kernel + image_size);
if (oftree) {
if (bootm_has_initrd(data)) {
ret = bootm_load_initrd(data, image_end);
if (ret)
return ERR_PTR(ret);
image_end += resource_size(data->initrd_res);
image_end = PAGE_ALIGN(image_end);
}
devicetree = image_end;
fdt = bootm_get_devicetree(data);
if (IS_ERR(fdt))
return fdt;
ret = bootm_load_devicetree(data, fdt, devicetree);
free(fdt);
if (ret)
return ERR_PTR(ret);
*oftree = devicetree;
}
printf("Loaded kernel to 0x%08lx", kernel);
if (oftree)
printf(", devicetree at 0x%08lx", devicetree);
printf("\n");
return (void *)kernel;
}
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