Display problem while booting the bootloader on omap4430 custon board

Hello Gupta,

What is your version of the u-boot?

In the u-boot from Denx, your issues are not available. http://www.denx.de/wiki/U-Boot

Try to use Denx's u-boot.

Did you make modifications in your u-boot?

Best regards,

Yanko

Hi Yanko,

I'm using u-boot 1.1.4 version

( VERSION = 1
  PATCHLEVEL = 1
  SUBLEVEL = 4 )

i didn't modify anything in u-boot till now.
plz help me .

Regards
-Kaushal

Hello,

Could anyone plz help me out. ??

After Boot logo, some dotted coloured screen is coming. i want to remove it completely.

Here is the Boot code.

        /* Reconfigure DSI1 VC0 as high-speed video mode */
        __raw_writel(0x20808790, DSI_VC_CTRL(0));

        /* Write Long Packet header */
        __raw_writel(((0x00 << 24) | ((PANEL_WIDTH * BPP / 8)<<8)|(0x3E)),DSI_VC_LONG_PACKET_HEADER(0));

        for (i = 0; i < width*height*4; i+=4) {
                HEADER_PIXEL(header_data, pixel);
                *((unsigned char *)(0x80000000 + i)) = pixel[2];
                *((unsigned char *)(0x80000000 + i+1)) = pixel[1];
                *((unsigned char *)(0x80000000 + i+2)) = pixel[0];
                *((unsigned char *)(0x80000000 + i+3)) = 0x00;
        }

        /* Configure GFX pipeline */
        __raw_writel(0x80000000, DISPC_GFX_BA0);
        __raw_writel(0x80000000, DISPC_GFX_BA1);
        __raw_writel(0x02000098, DISPC_GFX_ATTRIBUTES);
        __raw_writel(((((PANEL_HEIGHT-height)/2) << 16) | ((PANEL_WIDTH-width)/2)), DISPC_GFX_POSITION);
        __raw_writel((((height-1) << 16) | (width-1)), DISPC_GFX_SIZE);

        /* Enable GFX pipeline */
        __raw_writel(__raw_readl(DISPC_GFX_ATTRIBUTES) | 0x1, DISPC_GFX_ATTRIBUTES);

        /* Enable manager (LCD ENABLE) */
        __raw_writel( __raw_readl(DISPC_CONTROL) | 0x1, DISPC_CONTROL);

        /* De-assert FORCE_TX_STOP_MODE_IO for video mode to work properly */
        __raw_writel(0x7fff7fff, DSI_TIMING1);

        /* Set GOLCD to sync pipelines */
        __raw_writel(__raw_readl(DISPC_CONTROL) | 0x3d, DISPC_CONTROL);

        enableVC(0);
        enableIF();

Which register value , i have to change and whats the register value ??

Thanks & Regards
-Kaushal

Hello,

Could anyone plz help me out.

I'm using omap4430 based custom board having u-boot version 1.1.4 and kernel version 2.6.32.