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// SPDX-License-Identifier: GPL-2.0-only
#include <common.h>
#include <firmware.h>
#include <asm/system.h>
#include <mach/atf.h>
#include <elf.h>
#include <asm/atf_common.h>
static unsigned long load_elf64_image_phdr(const void *elf)
{
const Elf64_Ehdr *ehdr; /* Elf header structure pointer */
const Elf64_Phdr *phdr; /* Program header structure pointer */
int i;
ehdr = elf;
phdr = elf + ehdr->e_phoff;
/* Load each program header */
for (i = 0; i < ehdr->e_phnum; ++i) {
void *dst = (void *)(ulong)phdr->p_paddr;
const void *src = elf + phdr->p_offset;
pr_debug("Loading phdr %i to 0x%p (%lu bytes)\n",
i, dst, (ulong)phdr->p_filesz);
if (phdr->p_filesz)
memcpy(dst, src, phdr->p_filesz);
if (phdr->p_filesz != phdr->p_memsz)
memset(dst + phdr->p_filesz, 0x00,
phdr->p_memsz - phdr->p_filesz);
++phdr;
}
return ehdr->e_entry;
}
void rk3568_atf_load_bl31(void *fdt)
{
const void *bl31_elf, *optee;
unsigned long bl31;
size_t bl31_elf_size, optee_size;
uintptr_t optee_load_address = 0;
get_builtin_firmware(rk3568_bl31_bin, &bl31_elf, &bl31_elf_size);
bl31 = load_elf64_image_phdr(bl31_elf);
if (IS_ENABLED(CONFIG_ARCH_RK3568_OPTEE)) {
optee_load_address = RK3568_OPTEE_LOAD_ADDRESS;
get_builtin_firmware(rk3568_op_tee_bin, &optee, &optee_size);
memcpy((void *)optee_load_address, optee, optee_size);
}
/* Setup an initial stack for EL2 */
asm volatile("msr sp_el2, %0" : :
"r" (RK3568_BAREBOX_LOAD_ADDRESS - 16) :
"cc");
bl31_entry(bl31, optee_load_address,
RK3568_BAREBOX_LOAD_ADDRESS, (uintptr_t)fdt);
}
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