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trezor-firmware/embed/reflash/main.c
2017-12-16 18:42:06 +01:00

95 lines
2.3 KiB
C

/*
* Copyright (c) Jan Pochyla, SatoshiLabs
*
* Licensed under TREZOR License
* see LICENSE file for details
*/
#include <string.h>
#include <stdlib.h>
#include <sys/types.h>
#include STM32_HAL_H
#include "common.h"
#include "display.h"
#include "flash.h"
#include "image.h"
#include "rng.h"
#include "sbu.h"
#include "sdcard.h"
#include "secbool.h"
#include "touch.h"
static void progress_callback(int pos, int len)
{
display_printf(".");
}
static void flash_from_sdcard(uint32_t target, uint32_t source, uint32_t length)
{
static uint32_t buf[SDCARD_BLOCK_SIZE / sizeof(uint32_t)];
ensure(
sectrue * (source % SDCARD_BLOCK_SIZE == 0),
"source not a multiple of block size");
ensure(
sectrue * (length % SDCARD_BLOCK_SIZE == 0),
"length not a multiple of block size");
for (uint32_t i = 0; i < length / SDCARD_BLOCK_SIZE; i++) {
display_printf("read %d\n", (unsigned int)(i + source / SDCARD_BLOCK_SIZE));
ensure(
sdcard_read_blocks(buf, i + source / SDCARD_BLOCK_SIZE, 1),
"sdcard_read_blocks");
for (uint32_t j = 0; j < SDCARD_BLOCK_SIZE / sizeof(uint32_t); j++) {
ensure(flash_write_word(target + i * SDCARD_BLOCK_SIZE + j * sizeof(uint32_t), buf[j]), NULL);
}
}
}
int main(void)
{
sdcard_init();
touch_init();
display_orientation(0);
display_clear();
display_backlight(255);
ensure(
sdcard_is_present(),
"sdcard_is_present");
display_printf("updating boardloader + bootloader\n");
const uint8_t sectors[] = {
FLASH_SECTOR_BOARDLOADER_START,
1,
FLASH_SECTOR_BOARDLOADER_END,
FLASH_SECTOR_BOOTLOADER,
};
display_printf("erasing sectors");
ensure(flash_erase_sectors(sectors, sizeof(sectors), progress_callback), "flash_erase_sectors");
display_printf("\n");
display_printf("erased\n");
ensure(flash_unlock(), NULL);
sdcard_power_on();
#define BOARDLOADER_SIZE (3 * 16 * 1024)
#define BOOTLOADER_SIZE (128 * 1024)
flash_from_sdcard(BOARDLOADER_START, 0, BOARDLOADER_SIZE);
flash_from_sdcard(BOOTLOADER_START, BOARDLOADER_SIZE, BOOTLOADER_SIZE);
display_printf("done\n");
sdcard_power_off();
ensure(flash_lock(), NULL);
return 0;
}