u-boot-2015.04 how to start with logo

[fulinux]

hi,

i want to start u-boot-2015.04 with logo, what steps need to be done?

in include/configs/mx6sabresd.h i has enabled this macro:

#define CONFIG_SPLASH_SCREEN

then u-boot Log follows:

U-Boot 2015.04-14469-gd3ef2ab-dirty (Apr 21 2016 - 01:50:53)

CPU:   Freescale i.MX6Q rev1.5 at 792 MHz

CPU:   Temperature 39 C

Reset cause: POR

Board: MX6-SabreSD

I2C:   ready

DRAM:  3.8 GiB

MMC:   FSL_SDHC: 0, FSL_SDHC: 1, FSL_SDHC: 2, FSL_SDHC: 3

No panel detected: default to Hannstar-XGA

Display: Hannstar-XGA (1024x768)

In:    serial

Out:   serial

Err:   serial

switch to partitions #0, OK

mmc0(part 0) is current device

Net:   Phy 1 not found

PHY reset timed out

FEC [PRIME]

Normal Boot

Hit any key to stop autoboot:  0

=>

The screen is balck, without any thing.

should i need download any bmp picture tu sd card at address 0x1000000(or other address?)，or logo bmp picture is in u-boot.imx.

[art]

Please refer to the Section 5.4 of the attached document. Also, refer to the following community thread:

https://community.freescale.com/message/320514

Hope it will be helpful.

Have a great day,
Artur

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[fulinux]

Hi, Artur

my lcd pannel uses lvds,my lcd is samsung's LTM230HL08, how to setting this lcd in uboot. like this:

board/freescale/mx6sabresd/mx6sabresd.c

struct display_info_t const displays[] = {{

763     .bus    = -1,

764     .addr   = 0,

765     .pixfmt = IPU_PIX_FMT_RGB666,

766     .detect = NULL,

767     .enable = enable_lvds,

768     .mode   = {

769         .name           = "SAMSUNG-LTM230HL08",

770         .refresh        = 60,

771         .xres           = 1920,

772         .yres           = 1080,

773         .pixclock       = 12048,

774         .left_margin    = 80,

775         .right_margin   = 68,

776         .upper_margin   = 15,

777         .lower_margin   = 15,

778         .hsync_len      = 12,

779         .vsync_len      = 8,

780         .sync           = 0,

781         .vmode          = FB_VMODE_NONINTERLACED

782 } }, {

is right?

and if i don't enabel #define CONFIG_SPLASH_SCREEN, does it will show uboot versio string on screen?

[art]

Q. and if i don't enabel #define CONFIG_SPLASH_SCREEN, does it will show uboot versio string on screen?

A. No, the output will only be available on the serial console.

[fulinux]

in drivers/video/cfb_console.c:

static void *video_logo(void)

{

....

     sprintf(info, " %s", version_string);

     space = (VIDEO_COLS - VIDEO_INFO_X) / VIDEO_FONT_WIDTH;

     len = strlen(info);

     if (len > space) {

         int xx = VIDEO_INFO_X, yy = VIDEO_INFO_Y;

         uchar *p = (uchar *) info;

        while (len) {

             if (len > space) {

                 video_drawchars(xx, yy, p, space);

                 len -= space;

                 p = (uchar *) p + space;

                 if (!y_off) {

                     xx += VIDEO_FONT_WIDTH;

                     space--;

                 }

                 yy += VIDEO_FONT_HEIGHT;

                 y_off++;

             } else {

                 video_drawchars(xx, yy, p, len);

                len = 0;

             }

         }

     } else

         video_drawstring(VIDEO_INFO_X, VIDEO_INFO_Y, (uchar *) info);

....

}

look at this code, it will show uboot version string on the serial console not on lcd pannel screen?

[fulinux]

thanks