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stm32/boards/LEGO_HUB_NO7: Add robust update logic to mboot.

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Following change in 899592ac34

Signed-off-by: Damien George <damien@micropython.org>
This commit is contained in:
Damien George 2024-04-28 15:39:00 +10:00
parent b896fa9b1f
commit 64f28dc1eb
1 changed files with 8 additions and 1 deletions
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9
ports/stm32/boards/LEGO_HUB_NO7/board_init.c
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@ -199,7 +199,14 @@ int board_mboot_get_reset_mode(uint32_t *initial_r0) {
}
void board_mboot_state_change(int state, uint32_t arg) {
if (state == MBOOT_STATE_FSLOAD_END) {
if (state == MBOOT_STATE_FSLOAD_START) {
// The FS-load update is about to start. Program the update key and FS-load elements
// into the flash so they can be retrieved if there is a power failure during the update.
mp_spiflash_erase_block(MBOOT_SPIFLASH_SPIFLASH, SPIFLASH_UPDATE_KEY_ADDR);
mp_spiflash_write(MBOOT_SPIFLASH_SPIFLASH, SPIFLASH_UPDATE_KEY_ADDR + 4, ELEM_DATA_SIZE, ELEM_DATA_START);
uint32_t key = SPIFLASH_UPDATE_KEY_VALUE;
mp_spiflash_write(MBOOT_SPIFLASH_SPIFLASH, SPIFLASH_UPDATE_KEY_ADDR, 4, (const uint8_t *)&key);
} else if (state == MBOOT_STATE_FSLOAD_END) {
// The FS-load update completed (either with success or failure), so erase the
// update key and write the result of the FS-load operation into flash.
mp_spiflash_erase_block(MBOOT_SPIFLASH_SPIFLASH, SPIFLASH_UPDATE_KEY_ADDR);