Changing the Default Console Baudrate on M2S-SOM-1A Running U-Boot Release 1.9.0

To change the default console baudrate from 57600 to 115200, reinstall U-Boot using the provided .stp file (m2s-som-1a.stp) and the Microsemi FlashPro tool:

1. Start FlashPro on a Windows host.
2. From the FlashPro IDE, create a new project with an arbitrary name.
3. From the main FlashPro window, push Configure Device.
4. Push Browse next to load existing programming file. Browse to the Linux SmartFusion2 project file m2s-som-1a.stp and choose it.
5. Push Program at the top of the main window to program the project onto the SmartFusion2 device and wait for the programming procedure to complete. If the programming completes successfully, a next reset should bring the U-Boot start-up messages and the command line interface onto the serial console interface.
6. To change the baudrate settings in U-Boot:
   
   - Connect to the U-Boot console using 115200,8N1 terminal settings.
   - Reset the board and hit any key to stop at the U-Boot prompt.
   - Set the new console baudrate (115200):
   
   

   M2S-SOM> setenv baudrate 115200
   ## Switch baudrate to 115200 bps and press ENTER ...
   M2S-SOM> setenv bootargs m2s_platform=m2s-som console=ttyS0,115200 panic=10
   M2S-SOM> saveenv
   Saving Environment to SPI Flash...
   Erasing SPI flash...
   Writing to SPI flash...
   done
   M2S-SOM>

7. Reset M2S-SOM.