From 377656b2cc3be3e704fc574041669a4a84ea6bb8 Mon Sep 17 00:00:00 2001 From: Bin Meng <bmeng.cn@gmail.com> Date: Tue, 14 Jun 2016 21:33:23 -0700 Subject: [PATCH] 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> --- arch/x86/cpu/baytrail/Kconfig | 11 +++++++++++ configs/bayleybay_defconfig | 1 + configs/minnowmax_defconfig | 1 + 3 files changed, 13 insertions(+) diff --git a/arch/x86/cpu/baytrail/Kconfig b/arch/x86/cpu/baytrail/Kconfig index 407feb214b..1c8ac370b3 100644 --- a/arch/x86/cpu/baytrail/Kconfig +++ b/arch/x86/cpu/baytrail/Kconfig @@ -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 diff --git a/configs/bayleybay_defconfig b/configs/bayleybay_defconfig index 9f1d7fbca9..0a71bb8d08 100644 --- a/configs/bayleybay_defconfig +++ b/configs/bayleybay_defconfig @@ -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 diff --git a/configs/minnowmax_defconfig b/configs/minnowmax_defconfig index 28b837daab..ba2b7dc43d 100644 --- a/configs/minnowmax_defconfig +++ b/configs/minnowmax_defconfig @@ -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 -- 2.39.5