1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
// 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;
}
#define rockchip_atf_load_bl31(SOC, atf_bin, tee_bin, fdt) do { \
const void *bl31_elf, *optee; \
unsigned long bl31; \
size_t bl31_elf_size, optee_size; \
uintptr_t optee_load_address = 0; \
\
get_builtin_firmware(atf_bin, &bl31_elf, &bl31_elf_size); \
\
bl31 = load_elf64_image_phdr(bl31_elf); \
\
if (IS_ENABLED(CONFIG_ARCH_##SOC##_OPTEE)) { \
optee_load_address = SOC##_OPTEE_LOAD_ADDRESS; \
\
get_builtin_firmware(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" (SOC##_BAREBOX_LOAD_ADDRESS - 16) : \
"cc"); \
\
bl31_entry(bl31, optee_load_address, \
SOC##_BAREBOX_LOAD_ADDRESS, (uintptr_t)fdt); \
} while (0) \
void rk3568_atf_load_bl31(void *fdt)
{
rockchip_atf_load_bl31(RK3568, rk3568_bl31_bin, rk3568_op_tee_bin, fdt);
}
|
