Andre Przywara 9cc3fa1b8a rpi: console: Autodetect Mini-UART vs. PL011 configuration ... The Raspberry Pi has two different UART devices pin-muxed to GPIO 14&15: One ARM PL011 one and the 8250 compatible "Mini-UART". A dtoverlay parameter in config.txt will tell the firmware to switch between the two: it will setup the right clocks and will configure the pinmuxes accordingly. To autodetect the user's choice, we read the pinmux register and check its setting: ALT5 (0x2) means the Mini-UART is used, ALT0 (0x4) points to the PL011. Based on that we select the UART driver to initialise. This will allow console output in any case. Change-Id: I620d3ce68de6c6576599f2a405636020e1fd1376 Signed-off-by: Andre Przywara <andre.przywara@arm.com>		2020-03-17 13:44:55 +00:00
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aarch64	rpi3: console: Use same "clock-less" setup scheme as RPi4	2020-03-17 12:44:09 +00:00
include	rpi: Allow using PL011 UART for RPi3/RPi4	2020-03-17 13:44:49 +00:00
platform.mk	rpi: console: Autodetect Mini-UART vs. PL011 configuration	2020-03-17 13:44:55 +00:00
rpi4_bl31_setup.c	rpi3: console: Use same "clock-less" setup scheme as RPi4	2020-03-17 12:44:09 +00:00