console.c: fix problem with splashimage

If a board uses cfb_console driver and splash image
and also defines CONFIG_SILENT_CONSOLE, the user is
locked out even if "silent" is not set. It is not
possible to get any output, neither on vga console
device nor on serial console after redirecting the
output to the serial console, since the GD_FLG_SILENT
flag remains set.

Fix the problem by redirecting the output from frame
buffer to serial console if splashimage is used.
Only suppress the output if "silent" environment
variable was set and don't set the GD_FLG_SILENT
flag arbitrarily.

Signed-off-by: Anatolij Gustschin <agust@denx.de>

common/console.c

@@ -659,10 +659,14 @@ int console_init_r(void)
 #ifdef CONFIG_SPLASH_SCREEN
 	/*
 	 * suppress all output if splash screen is enabled and we have
-	 * a bmp to display
+	 * a bmp to display. We redirect the output from frame buffer
+	 * console to serial console in this case or suppress it if
+	 * "silent" mode was requested.
 	 */
-	if (getenv("splashimage") != NULL)
-		gd->flags |= GD_FLG_SILENT;
+	if (getenv("splashimage") != NULL) {
+		if (!(gd->flags & GD_FLG_SILENT))
+			outputdev = search_device (DEV_FLAGS_OUTPUT, "serial");
+	}
 #endif
 
 	/* Scan devices looking for input and output devices */