Compile an image into uboot

When uboot displays an image, you can use the jpg image as a segment of uboot, and access the segment in the program to implement the image.

 

Image: logo.jpg. Copy it to common.

• Modify the u-boot.lds to add a ". log" segment. (U-boot.lds path: arch/arm/cpu/godnet/u-boot.lds)

OUTPUT_FORMAT(, , = = ALIGN(/arm/cpu/godnet/*= ALIGN(=/== ALIGN(*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*= ALIGN(*= ALIGN(*=*== ALIGN(=*=

 

• Add the logo. S file under common and write the following content:

• Add common/cmd_logo.c with the following content:
  

  #include <common.h><command.h> unsigned  unsigned  do_logo(cmd_tbl_t *cmdtp,  flag,  argc,  *  *p = (  *)(& len = = (unsigned )&__logo_end - (unsigned )&, &, & (i = ; i < len; i++(i %  == , *p++& 

• Modify common/Makefile and add the following content:

COBJS-y +=-y +== $( $(COBJS-= $( $(AOBJS-= $(AOBJS:.o=.S) $(COBJS:.o== $(addprefix $(obj),$(AOBJS) $(COBJS))

• Compile uboot

In this example, the image data of the. logo segment is read and printed, and the image is not the focus.