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x86: baytrail: Fix boot hang with a debug build

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It was observed that when -DDEBUG is used to generate a debug build,
U-Boot does not boot on MinnowMax board. A workaround is to disable
CONFIG_DEBUG_UART. The real issue is that in order to have the debug
uart to work, BayTrail SoC needs to be configured so that its internal
uart is available to be used as the debug uart.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng 2017-06-01 03:41:13 -07:00
parent f8f291b096
commit 37d1023264
2 changed files with 9 additions and 0 deletions
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4
arch/x86/cpu/baytrail/Kconfig
View File

@ -17,4 +17,8 @@ config INTERNAL_UART
reason, it is recommended that the UART port be used for
debug purposes only, eg: U-Boot console.
config DEBUG_UART
bool
select DEBUG_UART_BOARD_INIT
endif

5
arch/x86/cpu/baytrail/early_uart.c
View File

@ -80,3 +80,8 @@ int setup_internal_uart(int enable)
return 0;
}
void board_debug_uart_init(void)
{
setup_internal_uart(1);
}