dm: Allow debug UART to support an early console

When there is no console ready, allow the debug UART to be used for output.
This makes debugging of early code considerably easier.

Signed-off-by: Simon Glass <sjg@chromium.org>

diff --git a/common/console.c b/common/console.c
index 00582224d463272b43647af31f8dcba519b2c61c..acad8bdca06f5a9a251d3bce41456204e488f2ce 100644 (file)
--- a/common/console.c
+++ b/common/console.c
@@ -6,6 +6,7 @@
  */
 
 #include <common.h>
+#include <debug_uart.h>
 #include <stdarg.h>
 #include <iomux.h>
 #include <malloc.h>
@@ -460,6 +461,13 @@ void putc(const char c)
                return;
        }
 #endif
+#ifdef CONFIG_DEBUG_UART
+       /* if we don't have a console yet, use the debug UART */
+       if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
+               printch(c);
+               return;
+       }
+#endif
 #ifdef CONFIG_SILENT_CONSOLE
        if (gd->flags & GD_FLG_SILENT)
                return;
@@ -491,7 +499,18 @@ void puts(const char *s)
                return;
        }
 #endif
+#ifdef CONFIG_DEBUG_UART
+       if (!gd || !(gd->flags & GD_FLG_SERIAL_READY)) {
+               while (*s) {
+                       int ch = *s++;
 
+                       printch(ch);
+                       if (ch == '\n')
+                               printch('\r');
+               }
+               return;
+       }
+#endif
 #ifdef CONFIG_SILENT_CONSOLE
        if (gd->flags & GD_FLG_SILENT)
                return;