davinci: ea20: the console is always set to the serial line

Do not allow to overwrite it when video is enabled.
Signed-off-by: NBastian Ruppert <Bastian.Ruppert@Sewerin.de>
CC: Tom Rini <trini@ti.com>
Acked-by: NStefano Babic <sbabic@denx.de>

board/davinci/ea20/ea20.c

@@ -254,6 +254,15 @@ int board_early_init_f(void)
 	return 0;
 }
 
+/*
+ * Do not overwrite the console
+ * Use always serial for U-Boot console
+ */
+int overwrite_console(void)
+{
+	return 1;
+}
+
 int board_init(void)
 {
 	/* arch number of the board */
@@ -281,8 +290,6 @@ int board_late_init(void)
 	/* Set HALTEN to high */
 	gpio_direction_output(134, 1);
 
-	setenv("stdout", "serial");
-
 	/* Set fixed contrast settings for LCD via I2C potentiometer */
 	buf[0] = 0x00;
 	buf[1] = 0xd7;

include/configs/ea20.h

@@ -124,6 +124,8 @@
 #define CONFIG_VIDEO_LOGO
 #define CONFIG_VIDEO_BMP_RLE8
 #define CONFIG_CMD_BMP
+#define CONFIG_SYS_CONSOLE_IS_IN_ENV
+#define CONFIG_SYS_CONSOLE_OVERWRITE_ROUTINE
 #endif
 
 /*