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feat(stm32mp1): only fuse monotonic counter on closed devices

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The fused monotonic counter is checked by the ROM bootloader. The ROM
bootloader won't allow booting images build with a lower
STM32_TF_VERSION value.

On non-closed devices a user can easily circumvent this. But it is
annoying for a developer when open development hardware gets the counter
value fused.

Signed-off-by: Robin van der Gracht <robin@protonic.nl>
Change-Id: Ie52561368a3178de9d9a44b9d089664241452651
This commit is contained in:
Robin van der Gracht 2024-01-24 09:29:13 +01:00
parent 61dfdfd4db
commit d6bb94f3a1
1 changed files with 3 additions and 1 deletions
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4
plat/st/stm32mp1/bl2_plat_setup.c
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@ -367,7 +367,9 @@ skip_console_init:
print_reset_reason();
#if STM32MP15
update_monotonic_counter();
if (stm32mp_check_closed_device() == STM32MP_CHIP_SEC_CLOSED) {
update_monotonic_counter();
}
#endif
stm32mp1_syscfg_enable_io_compensation_finish();