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/*
* This file is part of the TREZOR project, https://trezor.io/
*
* Copyright (C) 2014 Pavol Rusnak <stick@satoshilabs.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/>.
*/
#ifndef __MEMORY_H__
#define __MEMORY_H__
#include <stdint.h>
/*
flash memory layout:
name | range | size | function
-----------+-------------------------+---------+------------------
Sector 0 | 0x08000000 - 0x08003FFF | 16 KiB | bootloader code
Sector 1 | 0x08004000 - 0x08007FFF | 16 KiB | bootloader code
-----------+-------------------------+---------+------------------
Sector 2 | 0x08008000 - 0x0800BFFF | 16 KiB | metadata area
Sector 3 | 0x0800C000 - 0x0800FFFF | 16 KiB | metadata area
-----------+-------------------------+---------+------------------
Sector 4 | 0x08010000 - 0x0801FFFF | 64 KiB | application code
Sector 5 | 0x08020000 - 0x0803FFFF | 128 KiB | application code
Sector 6 | 0x08040000 - 0x0805FFFF | 128 KiB | application code
Sector 7 | 0x08060000 - 0x0807FFFF | 128 KiB | application code
===========+=========================+============================
Sector 8 | 0x08080000 - 0x0809FFFF | 128 KiB | application code
Sector 9 | 0x080A0000 - 0x080BFFFF | 128 KiB | application code
Sector 10 | 0x080C0000 - 0x080DFFFF | 128 KiB | application code
Sector 11 | 0x080E0000 - 0x080FFFFF | 128 KiB | application code
metadata area:
offset | type/length | description
--------+-------------+-------------------------------
0x0000 | 4 bytes | magic = 'TRZR'
0x0004 | uint32 | length of the code (codelen)
0x0008 | uint8 | signature index #1
0x0009 | uint8 | signature index #2
0x000A | uint8 | signature index #3
0x000B | uint8 | flags
0x000C | 52 bytes | reserved
0x0040 | 64 bytes | signature #1
0x0080 | 64 bytes | signature #2
0x00C0 | 64 bytes | signature #3
0x0100 | 32K-256 B | persistent storage
flags & 0x01 -> restore storage after flashing (if signatures are ok)
*/
#define FLASH_ORIGIN (0x08000000)
#if EMULATOR
extern uint8_t *emulator_flash_base;
#define FLASH_PTR(x) (emulator_flash_base + (x - FLASH_ORIGIN))
#else
#define FLASH_PTR(x) (const uint8_t*) (x)
#endif
#define FLASH_TOTAL_SIZE (1024 * 1024)
#define FLASH_BOOT_START (FLASH_ORIGIN)
#define FLASH_BOOT_LEN (0x8000)
#define FLASH_META_START (FLASH_BOOT_START + FLASH_BOOT_LEN)
#define FLASH_META_LEN (0x8000)
#define FLASH_APP_START (FLASH_META_START + FLASH_META_LEN)
#define FLASH_META_MAGIC (FLASH_META_START)
#define FLASH_META_CODELEN (FLASH_META_START + 0x0004)
#define FLASH_META_SIGINDEX1 (FLASH_META_START + 0x0008)
#define FLASH_META_SIGINDEX2 (FLASH_META_START + 0x0009)
#define FLASH_META_SIGINDEX3 (FLASH_META_START + 0x000A)
#define FLASH_META_FLAGS (FLASH_META_START + 0x000B)
#define FLASH_META_SIG1 (FLASH_META_START + 0x0040)
#define FLASH_META_SIG2 (FLASH_META_START + 0x0080)
#define FLASH_META_SIG3 (FLASH_META_START + 0x00C0)
#define FLASH_META_DESC_LEN (0x100)
#define FLASH_STORAGE_START (FLASH_META_START + FLASH_META_DESC_LEN)
#define FLASH_STORAGE_LEN (FLASH_APP_START - FLASH_STORAGE_START)
#define FLASH_BOOT_SECTOR_FIRST 0
#define FLASH_BOOT_SECTOR_LAST 1
#define FLASH_META_SECTOR_FIRST 2
#define FLASH_META_SECTOR_LAST 3
#define FLASH_CODE_SECTOR_FIRST 4
#define FLASH_CODE_SECTOR_LAST 11
void memory_protect(void);
void memory_write_unlock(void);
int memory_bootloader_hash(uint8_t *hash);
static inline void flash_write32(uint32_t addr, uint32_t word) {
*(volatile uint32_t *) FLASH_PTR(addr) = word;
}
static inline void flash_write8(uint32_t addr, uint8_t byte) {
*(volatile uint8_t *) FLASH_PTR(addr) = byte;
}
#endif