Question

How can I change the boot area from U-Boot?

Target devices

• AG10/20
• AR10/20

Answer

Follow the following procedure to change the boot area.

1. Switch the DIP switch to U-Boot command mode.
   
   
2. Reboot the device. (Initial password: amnimo)

   TIM-1.0 
   WTMI-devel-18.12.1-118f0bd 
   WTMI: system early-init 
   SVC REV: 5, CPU VDD voltage: 1.108V 
   (Omitted) 
   STATUS:SN=[300002],MAC0=[E8:1B:4B:00:30:02],BS=[a:0 b:385 h:0 s:0],DIPBM=[ubootcomman d] 
   am_show_board_status: CNTFRQ_EL0=12500000 Hz 
   Please enter password - autoboot in 10 sec... ← Enter "amnimo".
   Return to boot status(0x55) for login 
   Amnimo>> run stopwdt← Stop WATCHDOG.
   Amnimo>>

3. Check the current boot area.

   Amnimo>> ambootsw get

4. Select another boot area.

   Amnimo>> ambootsw set Number ← Select the area number. (0 or 1)

5. After changing the DIP switch to Linux mode, enter "reset" and reboot the device.
   
   

   Amnimo>> reset

Reference

• 1.2.2 DIP スイッチ（Japanse）