stdio: Make use of the SERIAL define
This is always enabled for U-Boot proper, so simplify the condition
in the common Makefile.
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
diff --git a/include/stdio.h b/include/stdio.h
index 7b999a5..e732579 100644
--- a/include/stdio.h
+++ b/include/stdio.h
@@ -9,10 +9,7 @@
int tstc(void);
/* stdout */
-#if !defined(CONFIG_SPL_BUILD) || \
- (defined(CONFIG_TPL_BUILD) && defined(CONFIG_TPL_SERIAL)) || \
- (defined(CONFIG_SPL_BUILD) && !defined(CONFIG_TPL_BUILD) && \
- defined(CONFIG_SPL_SERIAL))
+#if !defined(CONFIG_SPL_BUILD) || CONFIG_IS_ENABLED(SERIAL)
void putc(const char c);
void puts(const char *s);
#ifdef CONFIG_CONSOLE_FLUSH_SUPPORT