[U-Boot] [PATCH 2/2] ARM: exynos: Disable serial support in SPL

[Marek Vasut <marex@denx.de>]

The exynos5 platforms use DM in U-Boot and do not use DM in SPL. The serial
driver, serial_s5p.c, is DM-only. This is OK for U-Boot, but in SPL, this
will fail with the following compile error:

drivers/built-in.o: In function `get_current':
...u-boot/drivers/serial/serial.c:387: undefined reference to `default_serial_console'

This warning happens because common/console.c is compiled into U-Boot SPL
if CONFIG_SPL_SERIAL_SUPPORT . The common/console.c invokes serial_*()
functions and since exynos5 does not use DM in SPL, these functions come
from drivers/serial/serial.c . The serial_*() locate default serial port
by calling default_serial_console(), but because the serial_s5p.c is DM-only,
it does no longer define default_serial_console(). Thus the error.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
---
 include/configs/exynos5-common.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/include/configs/exynos5-common.h b/include/configs/exynos5-common.h
index b2ff4dd..6846ad6 100644
--- a/include/configs/exynos5-common.h
+++ b/include/configs/exynos5-common.h
@@ -60,7 +60,6 @@
 
 #define CONFIG_SPL_LIBCOMMON_SUPPORT
 #define CONFIG_SPL_GPIO_SUPPORT
-#define CONFIG_SPL_SERIAL_SUPPORT
 #define CONFIG_SPL_LIBGENERIC_SUPPORT
 
 /* specific .lds file */
-- 
2.7.0