tree 0f47341a2c4ef0f4ef4814c8a5a97bed19aa67dd
parent edf6d7d59a69982bb7fe3fddf37a0897b260019e
author Anson Huang <Anson.Huang@nxp.com> 1547533630 +0800
committer Anson Huang <Anson.Huang@nxp.com> 1547533951 +0800

imx: make imx uart work for debug mode

With DEBUG_CONSOLE enabled, build will fail for imx8mq platform:

./build/imx8mq/release/bl31/imx8mq_bl31_setup.o:
In function `bl31_early_platform_setup2':
imx8mq_bl31_setup.c:(.text.bl31_early_platform_setup2+0x40):
	undefined reference to `console_uart_register'
Makefile:741: recipe for target 'build/imx8mq/release/bl31/bl31.elf' failed
make: *** [build/imx8mq/release/bl31/bl31.elf] Error 1

Besides, the .console_flush callback needs to be added to avoid
panic when debug mode is enabled, since the console_flush() will
call it without checking whether the function callback is valid.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>