ARM: stm32mp157c-dk2: add optional DEBUG_LL print to entry point
The TF-A sets up pin muxing and clocking for the UART4 which is the UART
suggested by ST for use as debug console.

Eventually, we might want to do this ourselves to be sure, but for now
lets just stick in a putc_ll('>'), so user selecting DEBUG_LL can see
that barebox started.

Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
1 parent 19aa70c commit bffb9deb9030f26cb929c29a7b3acc2fba6f3f83
@Ahmad Fatoum Ahmad Fatoum authored on 12 Nov 2019
Sascha Hauer committed on 13 Nov 2019
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arch/arm/boards/stm32mp157c-dk2/lowlevel.c