From: Bin Meng Date: Thu, 1 Jun 2017 10:41:13 +0000 (-0700) Subject: x86: baytrail: Fix boot hang with a debug build X-Git-Tag: v2017.07-rc1~85^2~1 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=37d1023264e7b73b72e0c42fd55de91c7018135d;p=platform%2Fkernel%2Fu-boot.git x86: baytrail: Fix boot hang with a debug build 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 Reviewed-by: Stefan Roese Reviewed-by: Simon Glass --- diff --git a/arch/x86/cpu/baytrail/Kconfig b/arch/x86/cpu/baytrail/Kconfig index 1c8ac37..6c85186 100644 --- a/arch/x86/cpu/baytrail/Kconfig +++ b/arch/x86/cpu/baytrail/Kconfig @@ -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 diff --git a/arch/x86/cpu/baytrail/early_uart.c b/arch/x86/cpu/baytrail/early_uart.c index 471d592..afab21f 100644 --- a/arch/x86/cpu/baytrail/early_uart.c +++ b/arch/x86/cpu/baytrail/early_uart.c @@ -80,3 +80,8 @@ int setup_internal_uart(int enable) return 0; } + +void board_debug_uart_init(void) +{ + setup_internal_uart(1); +}