The kernel can use as the default console a serial port if is defined
as stdout device in the Device Tree.
This allows a board to be booted without the need of having a console
parameter in the kernel command line.
Currently the Snow DTS has a bootargs in the /chosen node and this is
kept since users that don't have a serial console on this board might
be using it to have the boot log shown in the display. This will have
more precedence than the stdout-path but it's fine since is only used
when CONFIG_ARM_ATAG_DTB_COMPAT_CMDLINE_EXTEND is enabled.
Signed-off-by: Javier Martinez Canillas <javier.marti...@collabora.co.uk>
---
arch/arm/boot/dts/exynos5250-snow.dts | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm/boot/dts/exynos5250-snow.dts
b/arch/arm/boot/dts/exynos5250-snow.dts
index 5be966df7603..2657e842e5a5 100644
--- a/arch/arm/boot/dts/exynos5250-snow.dts
+++ b/arch/arm/boot/dts/exynos5250-snow.dts
@@ -29,6 +29,7 @@
chosen {
bootargs = "console=tty1";
+ stdout-path = "serial3:115200n8";
};
gpio-keys {
--
2.1.4
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