mx51evk: Add DVI output support

Add DVI output support and make it the default video output.

Currently the CLAA WVGA panel is supported, but this panel has to be purchased
separately, so using the DVI output as the default would allow more people to
try the splash screen feature on a mx51evk.

If someone still wants to use the CLAA WVGA, just set the panel variable as:
set panel claa

Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>

2 files changed, 36 insertions, 5 deletions

diff --git a/board/freescale/mx51evk/mx51evk.c b/board/freescale/mx51evk/mx51evk.c
index d1ef43189..54c16b1f9 100644
--- a/board/freescale/mx51evk/mx51evk.c
+++ b/board/freescale/mx51evk/mx51evk.c
@@ -489,8 +489,6 @@ int board_init(void)
 	/* address of boot parameters */
 	gd->bd->bi_boot_params = PHYS_SDRAM_1 + 0x100;
 
-	lcd_enable();
-
 	return 0;
 }
 
diff --git a/board/freescale/mx51evk/mx51evk_video.c b/board/freescale/mx51evk/mx51evk_video.c
index f036cf73b..7be5c9bef 100644
--- a/board/freescale/mx51evk/mx51evk_video.c
+++ b/board/freescale/mx51evk/mx51evk_video.c
@@ -48,6 +48,22 @@ static struct fb_videomode const claa_wvga = {
 	.vmode		= FB_VMODE_NONINTERLACED
 };
 
+static struct fb_videomode const dvi = {
+	.name		= "DVI panel",
+	.refresh	= 60,
+	.xres		= 1024,
+	.yres		= 768,
+	.pixclock	= 15385,
+	.left_margin	= 220,
+	.right_margin	= 40,
+	.upper_margin	= 21,
+	.lower_margin	= 7,
+	.hsync_len	= 60,
+	.vsync_len	= 10,
+	.sync		= 0,
+	.vmode		= FB_VMODE_NONINTERLACED
+};
+
 void setup_iomux_lcd(void)
 {
 	/* DI2_PIN15 */
@@ -73,9 +89,26 @@ void setup_iomux_lcd(void)
 	gpio_direction_output(MX51EVK_LCD_BACKLIGHT, 1);
 }
 
-void lcd_enable(void)
+int board_video_skip(void)
 {
-	int ret = ipuv3_fb_init(&claa_wvga, 1, IPU_PIX_FMT_RGB565);
+	int ret;
+	char const *e = getenv("panel");
+
+	if (e) {
+		if (strcmp(e, "claa") == 0) {
+			ret = ipuv3_fb_init(&claa_wvga, 1, IPU_PIX_FMT_RGB565);
+			if (ret)
+				printf("claa cannot be configured: %d\n", ret);
+			return ret;
+		}
+	}
+
+	/*
+	 * 'panel' env variable not found or has different value than 'claa'
+	 *  Defaulting to dvi output.
+	 */
+	ret = ipuv3_fb_init(&dvi, 0, IPU_PIX_FMT_RGB24);
 	if (ret)
-		printf("LCD cannot be configured: %d\n", ret);
+		printf("dvi cannot be configured: %d\n", ret);
+	return ret;
 }