diff options
| author | Bin Meng <bmeng.cn@gmail.com> | 2017-06-01 03:41:13 -0700 |
|---|---|---|
| committer | Bin Meng <bmeng.cn@gmail.com> | 2017-06-05 08:55:22 +0800 |
| commit | 37d1023264e7b73b72e0c42fd55de91c7018135d (patch) | |
| tree | d123912fddd1b0c6dab6072c78288eb3a2883a50 /arch/x86 | |
| parent | f8f291b0962c795fcb025338d5c2284e2357a669 (diff) | |
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 <bmeng.cn@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/cpu/baytrail/Kconfig | 4 | ||||
| -rw-r--r-- | arch/x86/cpu/baytrail/early_uart.c | 5 |
2 files changed, 9 insertions, 0 deletions
diff --git a/arch/x86/cpu/baytrail/Kconfig b/arch/x86/cpu/baytrail/Kconfig index 1c8ac370b3..6c85186486 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 471d592b49..afab21f1dd 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); +} |