• U-Boot update: ⇒ run update_uboot
  
• Device Tree update: ⇒ run update_fdt
  
• Kernel update: ⇒ run update_kernel
  

Starting with TQMa6x-BSP-REV.0109 we deliver a Linux tool to upload U-Boot into the TQMa6X RAM from your development host and start it. After building the BSP the tool is located under
…/TQMa6x-BSP-REV.0109/platform-MBa6x/packages/h-imx_usb_loader-master

You have to apply the following steps before you can start to work with the tool:

• Copy the content of folder …/TQMa6x-BSP-REV.0109/platform-MBa6x/packages/host-imx_usb_loader-master/usr/etc/ to /etc
• Copy the content of folder …/TQMa6x-BSP-REV.0109/platform-MBa6x/packages/host-imx_usb_loader-master/usr/bin/ to /bin

1. Set Starterkit to boot-mode “serial downloader”, please see MBa6x DIP switch settings
2. Connect Starterkit connector X8 (Micro USB cable provided with the Starterkit) to your host
3. Connect Starterkit connector X15 (RS232) to your host
4. Power up Starterkit
5. Please check that Linux recognized a new USB device, see output of command dmesg | grep -i usb. You should see something like the following :

   usb 1-1: Manufacturer: Freescale SemiConductor Inc 
   hid-generic 0003:15A2:0054.0002: hiddev0,hidraw1: USB HID v1.10 Device [Freescale SemiConductor Inc  SE Blank ARIK] on usb-0000:02:03.0-1/input0

6. Open a serial terminal on your host e.g. TeraTerm
7. Open a Linux terminal and naviagate to folder “images” in the BSP dirctory
   e.g. /home/embedded/TQMa6x-BSP-REV.0109/platform-MBa6x/images
   
8. Start the serial downloader imx_usb as super user with the desired U-Boot as parameter

   Keep in mind to select a U-Boot that is corresponding to your module, please see deployment

   e.g.

   embedded@ubuntu:~/workspace/TQMa6x-BSP-REV.0109/platform-MBa6x/images$ sudo imx_usb u-boot-TQMa6Q_MBa6x.imx

   host console output after starting the serial downloader

   config file </etc/imx-loader.d/imx_usb.conf>
   vid=0x066f pid=0x3780 file_name=mx23_usb_work.conf
   vid=0x15a2 pid=0x004f file_name=mx28_usb_work.conf
   vid=0x15a2 pid=0x0052 file_name=mx50_usb_work.conf
   vid=0x15a2 pid=0x0054 file_name=mx6_usb_work.conf
   vid=0x15a2 pid=0x0061 file_name=mx6_usb_work.conf
   vid=0x15a2 pid=0x0063 file_name=mx6_usb_work.conf
   vid=0x15a2 pid=0x0041 file_name=mx51_usb_work.conf
   vid=0x15a2 pid=0x004e file_name=mx53_usb_work.conf
   vid=0x15a2 pid=0x006a file_name=vybrid_usb_work.conf
   vid=0x066f pid=0x37ff file_name=linux_gadget.conf
   config file </etc/imx-loader.d/mx6_usb_work.conf>
   parse /etc/imx-loader.d/mx6_usb_work.conf
   15a2:0054(mx6_qsb) bConfigurationValue =1
   Interface 0 claimed
   HAB security state: development mode (0x56787856)
   == work item
   filename u-boot-TQMa6Q_MBa6x.imx
   load_size 0 bytes
   load_addr 0x00000000
   dcd 1
   clear_dcd 0
   plug 1
   jump_mode 2
   jump_addr 0x00000000
   == end work item
   main dcd length 308
   sub dcd length 304
   
   loading binary file(u-boot-TQMa6Q_MBa6x.imx) to 4fbff400, skip=0, fsize=5cc00 type=aa
   
   <<<379904, 379904 bytes>>>
   succeeded (status 0x88888888)
   jumping to 0x4fbff400

9. Now you can see the U-Boot messages in the serial terminal programm

Next steps are:

• write U-Boot using tftp to eMMC, see Updating existing firmware over ethernet
• write kernel image using tftp to eMMC, see Updating existing firmware over ethernet