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fwu: Mark failed bank as invalid during rollback

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When boot_idx differs from active_idx at boot time, it indicates a
rollback scenario where the firmware update failed and the system
reverted to the previous working bank. In this case, mark the failed
bank (active_idx) as invalid to prevent future boot attempts from that
bank.

Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
This commit is contained in:
Kory Maincent 2026-01-19 17:07:42 +01:00 committed by Ilias Apalodimas
parent e8d9ad18f0
commit 9367b8d933
1 changed files with 6 additions and 0 deletions
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6
lib/fwu_updates/fwu.c
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@ -766,6 +766,12 @@ static int fwu_boottime_checks(void)
if (boot_idx != active_idx) {
log_info("Boot idx %u is not matching active idx %u, changing active_idx\n",
boot_idx, active_idx);
ret = fwu_state_machine_updates(FWU_BANK_INVALID, active_idx);
if (ret)
log_err("Unable to set bank %u state as invalid",
active_idx);
ret = fwu_set_active_index(boot_idx);
if (!ret)
boottime_check = 1;