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x86: baytrail: Introduce a Kconfig option for the internal UART 

There are quite a number of BayTrail boards that uses an external
SuperIO chipset to provide the legacy UART. For such cases, it's
better to have a Kconfig option to enable the internal UART.

So far BayleyBay and MinnowMax boards are using internal UART as
the U-Boot console, enable this on these two boards.

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 2016-06-14 21:33:23 -07:00
parent f698baa9d1
commit 377656b2cc
3 changed files with 13 additions and 0 deletions
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11
arch/x86/cpu/baytrail/Kconfig
View File

@ -7,3 +7,14 @@
config INTEL_BAYTRAIL
bool
select HAVE_FSP if !EFI
if INTEL_BAYTRAIL
config INTERNAL_UART
bool "Enable the SoC integrated legacy UART"
help
There is a legacy UART integrated into the Bay Trail SoC.
A maximum baud rate of 115200 bps is supported. For this
reason, it is recommended that the UART port be used for
debug purposes only, eg: U-Boot console.
endif

1
configs/bayleybay_defconfig
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@ -2,6 +2,7 @@ CONFIG_X86=y
CONFIG_VENDOR_INTEL=y
CONFIG_DEFAULT_DEVICE_TREE="bayleybay"
CONFIG_TARGET_BAYLEYBAY=y
CONFIG_INTERNAL_UART=y
CONFIG_HAVE_INTEL_ME=y
CONFIG_ENABLE_MRC_CACHE=y
CONFIG_SMP=y

1
configs/minnowmax_defconfig
View File

@ -2,6 +2,7 @@ CONFIG_X86=y
CONFIG_VENDOR_INTEL=y
CONFIG_DEFAULT_DEVICE_TREE="minnowmax"
CONFIG_TARGET_MINNOWMAX=y
CONFIG_INTERNAL_UART=y
CONFIG_HAVE_INTEL_ME=y
CONFIG_ENABLE_MRC_CACHE=y
CONFIG_SMP=y