mirror of
https://github.com/licsber/micropython.git
synced 2024-09-20 09:00:23 +08:00
a175f98a65
Since commit 3533924c36 the zlib module has
been replaced by the new deflate module. This commit updates the script
fwupdate.py to use the new deflate module.
Signed-off-by: Oliver Joos <oliver.joos@hispeed.ch>
266 lines
8.0 KiB
Python
266 lines
8.0 KiB
Python
# Update Mboot or MicroPython from a .dfu.gz file on the board's filesystem
|
|
# MIT license; Copyright (c) 2019-2022 Damien P. George
|
|
|
|
from micropython import const
|
|
import struct, time
|
|
import deflate, machine, stm
|
|
|
|
# Constants to be used with update_mpy
|
|
VFS_FAT = 1
|
|
VFS_LFS1 = 2
|
|
VFS_LFS2 = 3
|
|
|
|
# Constants for creating mboot elements.
|
|
_ELEM_TYPE_END = const(1)
|
|
_ELEM_TYPE_MOUNT = const(2)
|
|
_ELEM_TYPE_FSLOAD = const(3)
|
|
_ELEM_TYPE_STATUS = const(4)
|
|
|
|
|
|
def check_mem_contains(addr, buf):
|
|
mem8 = stm.mem8
|
|
r = range(len(buf))
|
|
for off in r:
|
|
if mem8[addr + off] != buf[off]:
|
|
return False
|
|
return True
|
|
|
|
|
|
def dfu_read(filename):
|
|
from binascii import crc32
|
|
|
|
f = open(filename, "rb")
|
|
|
|
hdr = f.read(3)
|
|
f.seek(0)
|
|
if hdr == b"Dfu":
|
|
pass
|
|
elif hdr == b"\x1f\x8b\x08":
|
|
f = deflate.DeflateIO(f, deflate.GZIP)
|
|
else:
|
|
print("Invalid firmware", filename)
|
|
return None
|
|
|
|
crc = 0
|
|
elems = []
|
|
|
|
hdr = f.read(11)
|
|
crc = crc32(hdr, crc)
|
|
sig, ver, size, num_targ = struct.unpack("<5sBIB", hdr)
|
|
|
|
file_offset = 11
|
|
|
|
for i in range(num_targ):
|
|
hdr = f.read(274)
|
|
crc = crc32(hdr, crc)
|
|
sig, alt, has_name, name, t_size, num_elem = struct.unpack("<6sBi255sII", hdr)
|
|
|
|
file_offset += 274
|
|
file_offset_t = file_offset
|
|
for j in range(num_elem):
|
|
hdr = f.read(8)
|
|
crc = crc32(hdr, crc)
|
|
addr, e_size = struct.unpack("<II", hdr)
|
|
data = f.read(e_size)
|
|
crc = crc32(data, crc)
|
|
elems.append((addr, data))
|
|
file_offset += 8 + e_size
|
|
|
|
if t_size != file_offset - file_offset_t:
|
|
print("corrupt DFU", t_size, file_offset - file_offset_t)
|
|
return None
|
|
|
|
if size != file_offset:
|
|
print("corrupt DFU", size, file_offset)
|
|
return None
|
|
|
|
hdr = f.read(16)
|
|
crc = crc32(hdr, crc)
|
|
crc = ~crc & 0xFFFFFFFF
|
|
if crc != 0:
|
|
print("CRC failed", crc)
|
|
return None
|
|
|
|
return elems
|
|
|
|
|
|
class Flash:
|
|
_FLASH_KEY1 = 0x45670123
|
|
_FLASH_KEY2 = 0xCDEF89AB
|
|
|
|
def __init__(self):
|
|
import os, uctypes
|
|
|
|
self.addressof = uctypes.addressof
|
|
|
|
# Detect MCU.
|
|
machine = os.uname().machine
|
|
if "STM32F4" in machine or "STM32F7" in machine:
|
|
dev_id = stm.mem32[0xE004_2000] & 0xFFF
|
|
elif "STM32H7" in machine:
|
|
dev_id = stm.mem32[0x5C00_1000] & 0xFFF
|
|
else:
|
|
dev_id = 0
|
|
|
|
# Configure flash parameters based on MCU.
|
|
if dev_id in (0x413, 0x419, 0x431, 0x434, 0x451, 0x452):
|
|
# 0x413: STM32F405/407, STM32F415/417
|
|
# 0x419: STM32F42x/43x
|
|
# 0x431: STM32F411
|
|
# 0x434: STM32F469/479
|
|
# 0x451: STM32F76x/77x
|
|
# 0x452: STM32F72x/73x
|
|
self._keyr = stm.FLASH + stm.FLASH_KEYR
|
|
self._sr = stm.FLASH + stm.FLASH_SR
|
|
self._sr_busy = 1 << 16
|
|
self._cr = stm.FLASH + stm.FLASH_CR
|
|
self._cr_lock = 1 << 31
|
|
self._cr_init_erase = lambda s: 2 << 8 | s << 3 | 1 << 1 # PSIZE=32-bits, SNB, SER
|
|
self._cr_start_erase = 1 << 16 # STRT
|
|
self._cr_init_write = 2 << 8 | 1 << 0 # PSIZE=32-bits, PG
|
|
self._cr_flush = None
|
|
self._write_multiple = 4
|
|
if dev_id == 0x451 and stm.mem32[0x1FFF_0008] & 1 << 13: # check nDBANK
|
|
# STM32F76x/77x in single-bank mode
|
|
self.sector0_size = 32 * 1024
|
|
else:
|
|
self.sector0_size = 16 * 1024
|
|
elif dev_id == 0x450:
|
|
# 0x450: STM32H742, STM32H743/753, STM32H750
|
|
self._keyr = stm.FLASH + stm.FLASH_KEYR1
|
|
self._sr = stm.FLASH + stm.FLASH_SR1
|
|
self._sr_busy = 1 << 2 # QW1
|
|
self._cr = stm.FLASH + stm.FLASH_CR1
|
|
self._cr_lock = 1 << 0 # LOCK1
|
|
self._cr_init_erase = lambda s: s << 8 | 3 << 4 | 1 << 2 # SNB1, PSIZE1=64-bits, SER1
|
|
self._cr_start_erase = 1 << 7 # START1
|
|
self._cr_init_write = 3 << 4 | 1 << 1 # PSIZE1=64-bits, PG1=1
|
|
self._cr_flush = 1 << 6 # FW1=1
|
|
self._write_multiple = 16
|
|
self.sector0_size = 128 * 1024
|
|
else:
|
|
raise Exception(f"unknown MCU {machine} DEV_ID=0x{dev_id:x}")
|
|
|
|
def wait_not_busy(self):
|
|
while stm.mem32[self._sr] & self._sr_busy:
|
|
machine.idle()
|
|
|
|
def unlock(self):
|
|
if stm.mem32[self._cr] & self._cr_lock:
|
|
stm.mem32[self._keyr] = self._FLASH_KEY1
|
|
stm.mem32[self._keyr] = self._FLASH_KEY2
|
|
|
|
def lock(self):
|
|
stm.mem32[self._cr] = self._cr_lock
|
|
|
|
def erase_sector(self, sector):
|
|
self.wait_not_busy()
|
|
stm.mem32[self._cr] = self._cr_init_erase(sector)
|
|
stm.mem32[self._cr] |= self._cr_start_erase
|
|
self.wait_not_busy()
|
|
stm.mem32[self._cr] = 0
|
|
|
|
# This method is optimised for speed, to reduce the time data is being written.
|
|
def write(self, addr, buf):
|
|
assert len(buf) % 4 == 0
|
|
mem32 = stm.mem32
|
|
buf_addr = self.addressof(buf)
|
|
r = range(0, len(buf), 4)
|
|
self.wait_not_busy()
|
|
mem32[self._cr] = self._cr_init_write
|
|
for off in r:
|
|
mem32[addr + off] = mem32[buf_addr + off]
|
|
if off % self._write_multiple == 0:
|
|
while mem32[self._sr] & self._sr_busy:
|
|
pass
|
|
if self._cr_flush is not None:
|
|
mem32[self._cr] |= self._cr_flush
|
|
self.wait_not_busy()
|
|
mem32[self._cr] = 0
|
|
|
|
|
|
def update_mboot(filename):
|
|
print("Loading file", filename)
|
|
|
|
mboot_fw = dfu_read(filename)
|
|
if mboot_fw is None:
|
|
return
|
|
if len(mboot_fw) != 1:
|
|
assert 0
|
|
mboot_addr, mboot_fw = mboot_fw[0]
|
|
if mboot_addr != 0x08000000:
|
|
assert 0
|
|
|
|
print("Found Mboot data with size %u." % len(mboot_fw))
|
|
|
|
chk = check_mem_contains(mboot_addr, mboot_fw)
|
|
if chk:
|
|
print("Supplied version of Mboot is already on device.")
|
|
return
|
|
|
|
print("Programming Mboot, do not turn off!")
|
|
time.sleep_ms(50)
|
|
|
|
flash = Flash()
|
|
irq = machine.disable_irq()
|
|
flash.unlock()
|
|
flash.erase_sector(0)
|
|
if len(mboot_fw) > flash.sector0_size:
|
|
flash.erase_sector(1)
|
|
flash.write(mboot_addr, mboot_fw)
|
|
flash.lock()
|
|
machine.enable_irq(irq)
|
|
|
|
print("New Mboot programmed.")
|
|
|
|
if check_mem_contains(mboot_addr, mboot_fw):
|
|
print("Verification of new Mboot succeeded.")
|
|
else:
|
|
print("Verification of new Mboot FAILED! Try rerunning.")
|
|
|
|
print("Programming finished, can now reset or turn off.")
|
|
|
|
|
|
def _create_element(kind, body):
|
|
return bytes([kind, len(body)]) + body
|
|
|
|
|
|
def update_app_elements(
|
|
filename, fs_base, fs_len, fs_type=VFS_FAT, fs_blocksize=0, status_addr=None, addr_64bit=False
|
|
):
|
|
# Check firmware is of .dfu or .dfu.gz type
|
|
try:
|
|
with open(filename, "rb") as f:
|
|
hdr = deflate.DeflateIO(f, deflate.GZIP).read(6)
|
|
except Exception:
|
|
with open(filename, "rb") as f:
|
|
hdr = f.read(6)
|
|
if hdr != b"DfuSe\x01":
|
|
print("Firmware must be a .dfu(.gz) file.")
|
|
return ()
|
|
|
|
if fs_type in (VFS_LFS1, VFS_LFS2) and not fs_blocksize:
|
|
raise Exception("littlefs requires fs_blocksize parameter")
|
|
|
|
mount_point = 1
|
|
mount_encoding = "<BBQQL" if addr_64bit else "<BBLLL"
|
|
elems = _create_element(
|
|
_ELEM_TYPE_MOUNT,
|
|
struct.pack(mount_encoding, mount_point, fs_type, fs_base, fs_len, fs_blocksize),
|
|
)
|
|
elems += _create_element(
|
|
_ELEM_TYPE_FSLOAD, struct.pack("<B", mount_point) + bytes(filename, "ascii")
|
|
)
|
|
if status_addr is not None:
|
|
# mboot will write 0 to status_addr on success, or a negative number on failure
|
|
machine.mem32[status_addr] = 1
|
|
elems += _create_element(_ELEM_TYPE_STATUS, struct.pack("<L", status_addr))
|
|
elems += _create_element(_ELEM_TYPE_END, b"")
|
|
return elems
|
|
|
|
|
|
def update_mpy(*args, **kwargs):
|
|
elems = update_app_elements(*args, **kwargs)
|
|
if elems:
|
|
machine.bootloader(elems)
|