Boot using U-Boot

Load the QNX IFS from the microSD

1. Connect your Honeycomb LX2 target board to your host system.
2. On your host machine, start your favorite terminal program with these settings:
   • Baud rate: 115200
   • Data: 8 bit
   • Parity: none
   • Stop: 1 bit
   • Flow control: none
   • Serial Device: /dev/ttyUSB0
3. To turn on the board, short the two red ON/OFF pins (pin 6 and pin 8) of the Front Panel header pins to simulate a power button press and turn on the board. It is recommended to use jumper wires to short the connectors but the user can use alternative methods.

   
   

   

   
   

4. After the power is turned on, output from U-Boot appears terminal console. When you see the prompt Hit any key to stop autoboot, press any key on your keyboard to interrupt the boot process as follows:

   NOTICE:  BL2: v2.4(release):LSDK-21.08-10-gfb8c3ba01
   NOTICE:  BL2: Built : 09:29:58, Jul 31 2024
   NOTICE:  UDIMM KF3200C20S4/32GX
   NOTICE:  DDR PMU Hardware version-0x1210
   NOTICE:  DDR PMU Firmware vision-0x1001 (vA-2019.04)
   NOTICE:  DDR4 UDIMM with 2-rank 64-bit bus (x8)
   
   NOTICE:  64 GB DDR4, 64-bit, CL=20, ECC off, 256B, CS0+CS1
   NOTICE:  BL2: Booting BL31
   NOTICE:  BL31: v2.4(release):LSDK-21.08-10-gfb8c3ba01
   NOTICE:  BL31: Built : 09:29:58, Jul 31 2024
   NOTICE:  Welcome to lx2160acex7 BL31 Phase
   SEC0:  RNG instantiated
   fsl_board_late_init
   Net:   eth0: DPMAC3@xgmii, eth1: DPMAC4@xgmii, eth2: DPMAC5@xgmii, eth3: DPMAC6@xgmii, eth4: DPMAC7@xgmii, eth5: DPMAC8@xgmii, eth6: DPMAC9@xgmii, eth7: DPMAC10@xgmii, eth8: DPMAC17@rgmii-id [PRIME]
   
   MMC read: dev # 0, block # 20480, count 4608 ... 4608 blocks read: OK
   
   MMC read: dev # 0, block # 28672, count 2048 ... 2048 blocks read: OK
   crc32+
   fsl-mc: Booting Management Complex ... SUCCESS
   fsl-mc: Management Complex booted (version: 10.37.0, boot status: 0x1)
   Hit any key to stop autoboot:  0
   =>

5. On the U-Boot prompt, type the following U-Boot commands to load the QNX IFS from the microSD:
   • mmc read 0x80d00000 0x6800 0x800; fsl_mc apply dpl 0x80d00000; fatload mmc 0:2 0x80200000 ifs-honeycomb.ui; fatload mmc 0:2 0x80100000 fsl-lx2160a-clearfog-cx.dtb; bootm 0x80200000 - 0x80100000

   => mmc read 0x80d00000 0x6800 0x800; fsl_mc apply dpl 0x80d00000; fatload mmc 0:2 0x80200000 ifs-honeycomb.ui; fatload mmc 0:2 0x80100000 fsl-lx2160a-clearfog-cx.dtb; bootm 0x80200000 - 0x80100000
   
   MMC read: dev # 0, block # 26624, count 2048 ... 2048 blocks read: OK
   fsl-mc: Deploying data path layout ... SUCCESS
   14502832 bytes read in 639 ms (21.6 MiB/s)
   45111 bytes read in 16 ms (2.7 MiB/s)
   ## Booting kernel from Legacy Image at 80200000 ...
      Image Name:   
      Created:      2025-04-23  17:51:43 UTC
      Image Type:   AArch64 Linux Kernel Image (uncompressed)
      Data Size:    14502768 Bytes = 13.8 MiB
      Load Address: 80200000
      Entry Point:  80200000
      Verifying Checksum ... OK
   ## Flattened Device Tree blob at 80100000
      Booting using the fdt blob at 0x80100000
      Loading Kernel Image
      Loading Device Tree to 000000009fff1000, end 000000009ffff036 ... OK
   found ar8035 ethernet phy at emdio1 address 1
   Releasing fan controller full speed gpio
   
   Starting kernel ...
   
   syspage::hypinfo::flags=0x00000000
    
   Welcome to QNX 8.0.0 on SolidRun_HoneyComb-LX2 !
    
   Starting I2C driver ...
   Starting Serial driver...
   Starting SDMMC driver for SD card...
   Starting SDMMC driver for eMMC ...
   Path=0 - ls10xx
    target=0 lun=0     Direct-Access(0) - SDMMC: DG4064 Rev: 0.1
   Starting devf-ram filesystem ...
   Starting networking ...
   Starting DHCP client ...
   Starting SSH daemon ...
   Starting thermal...
   Starting shell ...
   #
   

You should now be able to test the OS by executing any shell command, or any command residing within the QNX IFS image. For example: ls or uname -a.