trezor-mcu/firmware/fastflash.c

42 lines
1.3 KiB
C

/*
* This file is part of the TREZOR project, https://trezor.io/
*
* Copyright (C) 2017 Saleem Rashid <trezor@saleemrashid.com>
*
* This library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#include "fastflash.h"
#include "util.h"
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
#define bootloader_vec ((vector_table_t *) 0x20000000)
void __attribute__((noreturn)) run_bootloader(void)
{
extern uint8_t __bootloader_start__[];
extern uint8_t __bootloader_size__[];
// zero out SRAM
memset_reg(_ram_start, _ram_end, 0);
// copy bootloader
memcpy(bootloader_vec, __bootloader_start__, (size_t) __bootloader_size__);
load_vector_table(bootloader_vec);
}