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Code Issues Releases Wiki Activity

firmware: try updating bootloader 10 times before bailing

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Pavol Rusnak 2018-06-21 14:39:23 +02:00
parent da9f8bec6f
commit 01933e68fb
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GPG Key ID: 91F3B339B9A02A3D
1 changed files with 22 additions and 13 deletions
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35
firmware/bl_check.c
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@ -49,7 +49,7 @@ void check_bootloader(void)
int r = memory_bootloader_hash(hash);
if (!known_bootloader(r, hash)) {
layoutDialog(&bmp_icon_error, NULL, NULL, NULL, "Unknown bootloader", "detected.", NULL, "Unplug your TREZOR", "contact our support.", NULL);
layoutDialog(&bmp_icon_error, NULL, NULL, NULL, _("Unknown bootloader"), _("detected."), NULL, _("Unplug your TREZOR"), _("contact our support."), NULL);
shutdown();
}
@ -66,24 +66,33 @@ void check_bootloader(void)
// ATTEMPTING TO OVERWRITE BOOTLOADER WITH UNSIGNED FIRMWARE MAY BRICK
// YOUR DEVICE.
layoutDialog(&bmp_icon_warning, NULL, NULL, NULL, "Overwriting bootloader", NULL, NULL, "DON'T UNPLUG", "YOUR TREZOR", NULL);
layoutDialog(&bmp_icon_warning, NULL, NULL, NULL, _("Updating bootloader"), NULL, NULL, _("DO NOT UNPLUG"), _("YOUR TREZOR!"), NULL);
// unlock sectors
memory_write_unlock();
// replace bootloader
flash_unlock();
for (int i = FLASH_BOOT_SECTOR_FIRST; i <= FLASH_BOOT_SECTOR_LAST; i++) {
flash_erase_sector(i, FLASH_CR_PROGRAM_X32);
for (int tries = 0; tries < 10; tries++) {
// replace bootloader
flash_unlock();
for (int i = FLASH_BOOT_SECTOR_FIRST; i <= FLASH_BOOT_SECTOR_LAST; i++) {
flash_erase_sector(i, FLASH_CR_PROGRAM_X32);
}
for (int i = 0; i < FLASH_BOOT_LEN / 4; i++) {
const uint32_t *w = (const uint32_t *)(bl_data + i * 4);
flash_program_word(FLASH_BOOT_START + i * 4, *w);
}
flash_lock();
// check whether the write was OK
r = memory_bootloader_hash(hash);
if (r == 32 && 0 == memcmp(hash, bl_hash, 32)) {
// OK -> show info and halt
layoutDialog(&bmp_icon_info, NULL, NULL, NULL, _("Update finished"), _("successfully."), NULL, _("Please reconnect"), _("the device."), NULL);
shutdown();
return;
}
}
for (int i = 0; i < FLASH_BOOT_LEN / 4; i++) {
const uint32_t *w = (const uint32_t *)(bl_data + i * 4);
flash_program_word(FLASH_BOOT_START + i * 4, *w);
}
flash_lock();
// show info and halt
layoutDialog(&bmp_icon_info, NULL, NULL, NULL, _("Update finished"), _("successfully."), NULL, _("Please reconnect"), _("the device."), NULL);
layoutDialog(&bmp_icon_error, NULL, NULL, NULL, _("Bootloader update"), _("broken."), NULL, _("Unplug your TREZOR"), _("contact our support."), NULL);
shutdown();
#endif
}