Am Freitag, 3. November 2023, 10:28:12 CET schrieb Quentin Schulz: > From: Quentin Schulz <quentin.sch...@theobroma-systems.com> > > It's happened that glitches on the STM32_RST and STM32_BOOT lines have > put the STM32 companion microcontroller into DFU mode making it not boot > its FW, rendering it useless for the user. > > Considering that the STM32 companion microcontroller is always reset on > a reboot or power cycle, resetting it once again in U-Boot SPL isn't > going to hurt it any more. > > For ATtiny companion microcontroller, the situation is a bit different > because a reboot or power cycle doesn't reset it. Additionally, since it > can only be reset with a UPDI reset on the STM32_RST line, and that is > virtually impossible to mistakenly trigger, the ATtiny is unlikely to be > in unwanted reset or enter reset because U-Boot toggles STM32_RST line. > > Cc: Quentin Schulz <foss+ub...@0leil.net> > Signed-off-by: Quentin Schulz <quentin.sch...@theobroma-systems.com>
Reviewed-by: Heiko Stuebner <he...@sntech.de>
