On Thu, Jun 11, 2020 at 07:18:38PM +0200, Ahmad Fatoum wrote: > If we experience a watchdog reset, the indicating flag should persist > till the Linux driver had a chance to see it. > > The flag bit is special however in that writing 1 clears the bit and > writing 0 keeps it intact, i.e. : > > Bit > read written result > 0 0 = 0 > 1 0 = 1 > 0 1 = 0 > 1 1 = 0 > > So in the bootloader, we should write a zero always. The OS on the > other hand can either write 1 or the old value after reading to > clear the flag. > > Signed-off-by: Ahmad Fatoum <a.fatoum@xxxxxxxxxxxxxx> > --- > drivers/watchdog/f71808e_wdt.c | 59 +++++++++++++++++++++++----------- > 1 file changed, 40 insertions(+), 19 deletions(-) Applied, thanks Sascha -- Pengutronix e.K. | | Steuerwalder Str. 21 | http://www.pengutronix.de/ | 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@xxxxxxxxxxxxxxxxxxx http://lists.infradead.org/mailman/listinfo/barebox
