[U-Boot] LCD Support on mx51 vision2

[Fabio Estevam]

Anatolij,

On Tue, May 8, 2012 at 4:35 PM, Fabio Estevam <festevam at gmail.com> wrote:

> Thanks for your suggestion. Increasing  CONFIG_SYS_MALLOC_LEN does not
> fix the issue.

Below is my patch and some more debug information.

As you can see mode->xres is getting a weird value instead of '800'
that I pass in the fb_videomode struct.

diff --git a/board/freescale/mx51evk/mx51evk.c
b/board/freescale/mx51evk/mx51evk.c
index b505a71..a6cf64a 100644
--- a/board/freescale/mx51evk/mx51evk.c
+++ b/board/freescale/mx51evk/mx51evk.c
@@ -36,6 +36,8 @@
 #include <fsl_pmic.h>
 #include <mc13892.h>
 #include <usb/ehci-fsl.h>
+#include <linux/fb.h>
+#include <ipu_pixfmt.h>

 DECLARE_GLOBAL_DATA_PTR;

@@ -453,6 +455,27 @@ int board_mmc_init(bd_t *bis)
 }
 #endif

+static struct fb_videomode claa_wvga = {
+	.name		= "CLAA07LC0ACW",
+	.refresh	= 57,
+	.xres		= 800,
+	.yres		= 480,
+	.pixclock	= 37037,
+	.left_margin	= 40,
+	.right_margin	= 60,
+	.upper_margin	= 10,
+	.lower_margin	= 10,
+	.hsync_len	= 20,
+	.vsync_len	= 10,
+	.sync		= 0,
+	.vmode		= FB_VMODE_NONINTERLACED
+};
+
+void lcd_enable(void)
+{
+	mx51_fb_init(&claa_wvga, 1, IPU_PIX_FMT_RGB565);
+}
+
 int board_early_init_f(void)
 {
 	setup_iomux_uart();
diff --git a/drivers/video/mxc_ipuv3_fb.c b/drivers/video/mxc_ipuv3_fb.c
index 1bee54c..c640838 100644
--- a/drivers/video/mxc_ipuv3_fb.c
+++ b/drivers/video/mxc_ipuv3_fb.c
@@ -26,6 +26,7 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  * MA 02111-1307 USA
  */
+#define DEBUG

 #include <common.h>
 #include <asm/errno.h>
@@ -66,6 +67,8 @@ void fb_videomode_to_var(struct fb_var_screeninfo *var,
 	var->vsync_len = mode->vsync_len;
 	var->sync = mode->sync;
 	var->vmode = mode->vmode & FB_VMODE_MASK;
+
+	printf("%s mode->xres: %d\n", __func__, mode->xres);
 }

 /*
@@ -542,8 +545,15 @@ static int mxcfb_probe(u32 interface_pix_fmt, uint8_t disp,
 	fb_videomode_to_var(&fbi->var, mode);
 	fbi->var.bits_per_pixel = 16;
 	fbi->fix.line_length = fbi->var.xres * (fbi->var.bits_per_pixel / 8);
+
+	printf("fbi->var.xres: %d\n", fbi->var.xres);
+	printf("fbi->var.bits_per_pixel /8 : %d\n", fbi->var.bits_per_pixel / 8);
+	printf("fbi->fix.line_length: %d\n", fbi->fix.line_length);
+
 	fbi->fix.smem_len = fbi->var.yres_virtual * fbi->fix.line_length;

+	printf("fbi->fix.smem_len: %d\n", fbi->fix.smem_len);
+
 	mxcfb_check_var(&fbi->var, fbi);

 	/* Default Y virtual size is 2x panel size */
diff --git a/include/configs/mx51evk.h b/include/configs/mx51evk.h
index 1477b21..e4240ba 100644
--- a/include/configs/mx51evk.h
+++ b/include/configs/mx51evk.h
@@ -51,7 +51,7 @@
 /*
  * Size of malloc() pool
  */
-#define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + 2 * 1024 * 1024)
+#define CONFIG_SYS_MALLOC_LEN		(CONFIG_ENV_SIZE + 10 * 1024 * 1024)

 #define CONFIG_BOARD_LATE_INIT

@@ -123,6 +123,17 @@
 #define CONFIG_MXC_USB_PORTSC	PORT_PTS_ULPI
 #define CONFIG_MXC_USB_FLAGS	MXC_EHCI_POWER_PINS_ENABLED

+/* Framebuffer and LCD */
+#define CONFIG_PREBOOT
+#define CONFIG_VIDEO
+#define CONFIG_VIDEO_MX5
+#define CONFIG_CFB_CONSOLE
+#define CONFIG_VGA_AS_SINGLE_DEVICE
+#define CONFIG_VIDEO_BMP_RLE8
+#define CONFIG_SPLASH_SCREEN
+#define CONFIG_CMD_BMP
+#define CONFIG_BMP_16BPP
+
 /* allow to overwrite serial and ethaddr */
 #define CONFIG_ENV_OVERWRITE
 #define CONFIG_CONS_INDEX		1
-- 

U-Boot 2012.04.01-00075-g6efea73-dirty (May 08 2012 - 18:18:40)

CPU:   Freescale i.MX51 rev3.0 at 800 MHz
Reset cause: POR
Board: MX51EVK
DRAM:  512 MiB
WARNING: Caches not enabled
MMC:   FSL_SDHC: 0, FSL_SDHC: 1
mxcfb_init_fbinfo: 4 640 112 524
Framebuffer structures at: fbi=0xaf56e268 mxcfbi=0xaf56e478
fb_videomode_to_var mode->xres: -442503140
fbi->var.xres: -442503140
fbi->var.bits_per_pixel /8 : 2
fbi->fix.line_length: -885006280
fbi->fix.smem_len: 2012808736
Unable to allocate framebuffer memory
Framebuffer at 0x0