diff options
| author | Damien George <damien@micropython.org> | 2024-04-28 15:39:00 +1000 |
|---|---|---|
| committer | Damien George <damien@micropython.org> | 2024-05-01 16:16:33 +1000 |
| commit | 64f28dc1eb542c90e38e89cd55b5452ed59290d0 (patch) | |
| tree | 23f76ce12750bf2b0fa78d748f94bcc64b552ae8 | |
| parent | b896fa9b1f5f17d9f92901dd9a75a0efdec39a92 (diff) | |
stm32/boards/LEGO_HUB_NO7: Add robust update logic to mboot.
Following change in 899592ac341ed9f10ee554424f964f6880fc8c48
Signed-off-by: Damien George <damien@micropython.org>
| -rw-r--r-- | ports/stm32/boards/LEGO_HUB_NO7/board_init.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/ports/stm32/boards/LEGO_HUB_NO7/board_init.c b/ports/stm32/boards/LEGO_HUB_NO7/board_init.c index 7b155b1c3..4f7b36c29 100644 --- a/ports/stm32/boards/LEGO_HUB_NO7/board_init.c +++ b/ports/stm32/boards/LEGO_HUB_NO7/board_init.c @@ -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); |