tty: serial: atmel: add earlycon support

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Add early console support which relies on the bootloader for the
initialization of the UART.
Please note, that the compatibles are taken from at91-usart MFD
driver.

Tested-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Reviewed-by: Claudiu Beznea <claudiu.beznea@microchip.com>
Acked-by: Richard Genoud <richard.genoud@gmail.com>
Signed-off-by: Michael Walle <michael@walle.cc>
Link: https://lore.kernel.org/r/20220217094620.1148571-1-michael@walle.cc
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Michael Walle 2022-02-17 10:46:20 +01:00 • committed by Greg Kroah-Hartman

parent 802d00bd77

commit aab68e959b

2 changed files with 25 additions and 0 deletions

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1

drivers/tty/serial/Kconfig

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24

drivers/tty/serial/atmel_serial.c

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