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// SPDX-License-Identifier: GPL-2.0-only
#define pr_fmt(fmt) "rockchip-bootm-barebox: " fmt
#include <bootm.h>
#include <common.h>
#include <init.h>
#include <memory.h>
#include <mach/rockchip/rockchip.h>
struct newidb_entry {
uint32_t sector;
uint32_t unknown_ffffffff;
uint32_t unknown1;
uint32_t image_number;
unsigned char unknown2[8];
unsigned char hash[64];
};
struct newidb {
uint32_t magic;
unsigned char unknown1[4];
uint32_t n_files;
uint32_t hashtype;
unsigned char unknown2[8];
unsigned char unknown3[8];
unsigned char unknown4[88];
struct newidb_entry entries[4];
unsigned char unknown5[40];
unsigned char unknown6[512];
unsigned char unknown7[16];
unsigned char unknown8[32];
unsigned char unknown9[464];
unsigned char hash[512];
};
#define SECTOR_SIZE 512
static int do_bootm_rkns_barebox_image(struct image_data *data)
{
void (*barebox)(unsigned long x0, unsigned long x1, unsigned long x2,
unsigned long x3);
resource_size_t start, end;
struct newidb *idb;
int ret, i, n_files;
void *buf;
resource_size_t image_size;
ret = memory_bank_first_find_space(&start, &end);
if (ret)
return ret;
ret = bootm_load_os(data, start);
if (ret)
return ret;
idb = (void *)data->os_res->start;
buf = (void *)data->os_res->start;
image_size = resource_size(data->os_res);
if (image_size < SECTOR_SIZE)
return -EINVAL;
n_files = idb->n_files >> 16;
if (n_files > 4)
n_files = 4;
if (data->verbose)
printf("RKNS image contains %d binaries:\n", n_files);
for (i = 0; i < n_files; i++) {
struct newidb_entry *entry = &idb->entries[i];
unsigned int entry_size = (entry->sector >> 16) * SECTOR_SIZE;
unsigned int entry_start = (entry->sector & 0xffff) * SECTOR_SIZE;
enum filetype filetype;
filetype = file_detect_type(buf + entry_start, SECTOR_SIZE);
if (entry_start + entry_size > image_size) {
printf("image %d expands outside the image\n", i);
continue;
}
if (data->verbose)
printf("image %d: size: %d offset: %d type: %s\n",
i, entry_size, entry_start,
file_type_to_string(filetype));
if (filetype == filetype_arm_barebox) {
memmove(buf, buf + entry_start, image_size - entry_start);
barebox = buf;
goto found;
}
}
return -EIO;
found:
printf("Starting barebox image at 0x%p\n", barebox);
shutdown_barebox();
barebox(0, 0, 0, 0);
return -EINVAL;
}
static struct image_handler image_handler_rkns_barebox_image = {
.name = "Rockchip RKNS barebox image",
.bootm = do_bootm_rkns_barebox_image,
.filetype = filetype_rockchip_rkns_image,
};
static int rockchip_register_barebox_image_handler(void)
{
if (rockchip_soc() < 0)
return 0;
return register_image_handler(&image_handler_rkns_barebox_image);
}
late_initcall(rockchip_register_barebox_image_handler);
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