spl: ti: Avoid serial calls when serial support is disabled
If CONFIG_SPL_SERIAL_SUPPORT is not set, then the build will fail:
board/ti/am335x/built-in.o: In function `spl_start_uboot':
board/ti/am335x/board.c:247: undefined reference to `serial_tstc'
board/ti/am335x/board.c:247: undefined reference to `serial_getc'
Avoid the calls to the serial functions in that case.
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
diff --git a/board/ti/am335x/board.c b/board/ti/am335x/board.c
index c33bf58..896b9b6 100644
--- a/board/ti/am335x/board.c
+++ b/board/ti/am335x/board.c
@@ -243,9 +243,11 @@
#ifdef CONFIG_SPL_OS_BOOT
int spl_start_uboot(void)
{
+#ifdef CONFIG_SPL_SERIAL_SUPPORT
/* break into full u-boot on 'c' */
if (serial_tstc() && serial_getc() == 'c')
return 1;
+#endif
#ifdef CONFIG_SPL_ENV_SUPPORT
env_init();