Change in coreboot[master]: drivers/uart/Kconfig: Be smarter about DRIVERS_UART_8250IO

[Nico Huber (Code Review)]

Nico Huber has uploaded this change for review. ( https://review.coreboot.org/29571

Change subject: drivers/uart/Kconfig: Be smarter about DRIVERS_UART_8250IO
......................................................................

drivers/uart/Kconfig: Be smarter about DRIVERS_UART_8250IO

It defaults to y to avoid having to select it per mainboard. But that
makes a mess because it results in linker conflicts unless other UART
drivers disable it explicitly.

We try to be smarter about the default value for now. The real solu-
tion would be to hardcode it per mainboard. But who knows which boards
actually have it?

Change-Id: I7e755fe0e4f6d1c31ef2854603a5510c3cdc4967
Signed-off-by: Nico Huber 
---
M src/drivers/uart/Kconfig
M src/soc/intel/denverton_ns/Kconfig
2 files changed, 4 insertions(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/71/29571/1

diff --git a/src/drivers/uart/Kconfig b/src/drivers/uart/Kconfig
index 39d20a3..1130aeb 100644
--- a/src/drivers/uart/Kconfig
+++ b/src/drivers/uart/Kconfig
@@ -4,8 +4,11 @@
    default n

config DRIVERS_UART_8250IO
+	# FIXME: Shouldn't have a prompt, should default to n, and
+	#        should be selected by boards that have it instead.
    bool "Serial port on SuperIO"
    depends on ARCH_X86
+	default n if DRIVERS_UART_8250MEM || HAVE_UART_SPECIAL
    default n if NO_UART_ON_SUPERIO
    default y

diff --git a/src/soc/intel/denverton_ns/Kconfig b/src/soc/intel/denverton_ns/Kconfig
index 736d567..59655ce 100644
--- a/src/soc/intel/denverton_ns/Kconfig
+++ b/src/soc/intel/denverton_ns/Kconfig
@@ -166,7 +166,7 @@
 endchoice

config ENABLE_HSUART
-	depends on (!DRIVERS_UART_8250IO && NON_LEGACY_UART_MODE)
+	depends on NON_LEGACY_UART_MODE
    bool "Enable High-speed UART debug port selected by UART_FOR_CONSOLE."
    default n
    select CONSOLE_SERIAL