1º Download the image .ISO AutoBoot.
http://tinycorelinux.net/12.x/x86/release/TinyCore-current.iso
2º Go to repository list web to select name of Application, The system have indiviual build.
http://distro.ibiblio.org/tinycorelinux/3.x/tcz/
3º To install you need push the Right Button Mousse and Go to System-Option and click in where say Apps.
Select the mirror where you want download the applications.   Repository APPs 
Go to /App/Browser and wait to the list.
4º You need this "Apt" to minimal compiler ARM.
        git.tcz
        
            compiletc.tcz
                                     
                   grub2-multi.tcz                       
                    
                              unzip.tcz
                              
                                   ncursesw-dev.tcz
| Cross Compiler | 
| U-Boot | 
| Compile C+ Code | 
| Make Binary Files | 
2º How create a Binary Files
    May be clone repository.
    You need go to Folder u-boot/confgis/ to copy the name of board selected to command write. Example-> rpi_2_defconfig 
1º Source Code Links Repository.
    https://github.com/ARM-software/u-boot.git
2º Compile the folder with board configuration
    Go to terminal and folder "u-boot".
    Write this commands:
                      make ARCH=arm rpi_2_defconfig 
                      make ARCH=arm CC=gcc rpi_2_defconfig 
                      make
                      
     Now you have a new .config file.         
3º Create Image or Binary Files depend how you desing.
        Write this;
        
           grub-mkimage 
           
           grub-mkimage -c u-boot.cfg -o 23.bin -O x86_64-efi -p boot
              or 
           grub-mkimage -c u-boot.cfg -o 23.img -O x86_64-efi -p boot
4º Adittional
        # To more option in the output file write "grub-mkimage" to read help.
             Or go to >>>>>>  https://manpages.debian.org/unstable/grub-common/grub-mkimage.1.en.html 
                                       
                                     You can look the options avaliable.
          
        # Now you have the files in the same folder where you compile before.



