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console: Always allow setting "EARLY_CONSOLE" configuration. 

Early console should always be allowed to be turned on / off (for generating
production and debug versions), and should not be enforced by "select" Kconfig
rule.

A new "DEFAULT_EARLY_CONSOLE" is introduced for devices to select if they
prefer early console output by default.

Verified Kconfig value on qemu/x86 (default y by CACHE_AS_RAM), snow/x86
(default y by EXYNOS5 config), and intel/jarrell (default n).

Change-Id: Ib1cc76d4ec115a302b95e7317224f1a40d1ab035
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Reviewed-on: http://review.coreboot.org/2307
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: David Hendricks <dhendrix@chromium.org>
This commit is contained in:
Hung-Te Lin 2013-02-07 13:41:56 +08:00 committed by David Hendricks
parent 31bb2df508
commit f7fcb2056f
3 changed files with 7 additions and 5 deletions
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6
src/console/Kconfig
View File

@ -1,8 +1,12 @@
menu "Console"
config DEFAULT_EARLY_CONSOLE
bool
default n
config EARLY_CONSOLE
bool "Enable early (pre-RAM) console output."
default n
default DEFAULT_EARLY_CONSOLE
help
Use console during early (pre-RAM) boot stages

2
src/cpu/Kconfig
View File

@ -16,7 +16,7 @@ source src/cpu/x86/Kconfig
config CACHE_AS_RAM
bool
select EARLY_CONSOLE
select DEFAULT_EARLY_CONSOLE
default !ROMCC
config DCACHE_RAM_BASE

4
src/cpu/samsung/Kconfig
View File

@ -6,9 +6,7 @@ config CPU_SAMSUNG_EXYNOS5
depends on ARCH_ARMV7
select CPU_SAMSUNG_EXYNOS
select HAVE_UART_SPECIAL
# TODO remove EARLY_CONSOLE when we can run ramstage without early UART
# init.
select EARLY_CONSOLE
select DEFAULT_EARLY_CONSOLE
bool
default n