7.27. Poplar

Poplar is the first development board compliant with the 96Boards Enterprise Edition TV Platform specification.

The board features the Hi3798C V200 with an integrated quad-core 64-bit Arm Cortex A53 processor and high performance Mali T720 GPU, making it capable of running any commercial set-top solution based on Linux or Android.

It supports a premium user experience with up to H.265 HEVC decoding of 4K video at 60 frames per second.

SOC Hisilicon Hi3798CV200
CPU Quad-core Arm Cortex-A53 64 bit
DRAM DDR3/3L/4 SDRAM interface, maximum 32-bit data width 2 GB
USB Two USB 2.0 ports One USB 3.0 ports
CONSOLE USB-micro port for console support
ETHERNET 1 GBe Ethernet
PCIE One PCIe 2.0 interfaces
EXPANSION INTERFACE Linaro 96Boards Low Speed Expansion slot
DIMENSION Standard 160×120 mm 96Boards Enterprice Edition form factor
WIFI 802.11AC 2*2 with Bluetooth
CONNECTORS One connector for Smart Card One connector for TSI

At the start of the boot sequence, the bootROM executes the so called l-loader binary whose main role is to change the processor state to 64bit mode. This must happen prior to invoking Trusted Firmware-A:

l-loader --> Trusted Firmware-A --> u-boot

7.27.1. How to build Code Locations Build Procedure

  • Fetch all the above 3 repositories into local host. Make all the repositories in the same ${BUILD_PATH}.

  • Prepare the AARCH64 toolchain.

  • Build u-boot using poplar_defconfig

make CROSS_COMPILE=aarch64-linux-gnu- poplar_defconfig
make CROSS_COMPILE=aarch64-linux-gnu-
  • Build atf providing the previously generated u-boot.bin as the BL33 image

make CROSS_COMPILE=aarch64-linux-gnu-  all fip SPD=none PLAT=poplar
  • Build l-loader (generated the final fastboot.bin)
    1. copy the atf generated files fip.bin and bl1.bin to l-loader/atf/


    3. make

7.27.2. Install Procedure

  • Copy l-loader/fastboot.bin to a FAT partition on a USB pen drive.

  • Plug the USB pen drive to any of the USB2 ports

  • Power the board while keeping S3 pressed (usb_boot)

The system will boot into a u-boot shell which you can then use to write the working firmware to eMMC.

7.27.3. Boot trace

Bootrom start
Boot Media: eMMC
Decrypt auxiliary code ...OK

lsadc voltage min: 000000FE, max: 000000FF, aver: 000000FE, index: 00000000

Entry boot auxiliary code

Auxiliary code - v1.00
DDR code - V1.1.2 20160205
Build: Mar 24 2016 - 17:09:44
Reg Version:  v134
Reg Time:     2016/03/18 09:44:55
Reg Name:     hi3798cv2dmb_hi3798cv200_ddr3_2gbyte_8bitx4_4layers.reg

Boot auxiliary code success
Bootrom success

LOADER:  Switched to aarch64 mode
LOADER:  CPU0 executes at 0x000ce000

INFO:    BL1: 0xe1000 - 0xe7000 [size = 24576]
NOTICE:  Booting Trusted Firmware
NOTICE:  BL1: v1.3(debug):v1.3-372-g1ba9c60
NOTICE:  BL1: Built : 17:51:33, Apr 30 2017
INFO:    BL1: RAM 0xe1000 - 0xe7000
INFO:    BL1: Loading BL2
INFO:    Loading image id=1 at address 0xe9000
INFO:    Image id=1 loaded at address 0xe9000, size = 0x5008
NOTICE:  BL1: Booting BL2
INFO:    Entry point address = 0xe9000
INFO:    SPSR = 0x3c5
NOTICE:  BL2: v1.3(debug):v1.3-372-g1ba9c60
NOTICE:  BL2: Built : 17:51:33, Apr 30 2017
INFO:    BL2: Loading BL31
INFO:    Loading image id=3 at address 0x129000
INFO:    Image id=3 loaded at address 0x129000, size = 0x8038
INFO:    BL2: Loading BL33
INFO:    Loading image id=5 at address 0x37000000
INFO:    Image id=5 loaded at address 0x37000000, size = 0x58f17
NOTICE:  BL1: Booting BL31
INFO:    Entry point address = 0x129000
INFO:    SPSR = 0x3cd
INFO:    Boot bl33 from 0x37000000 for 364311 Bytes
NOTICE:  BL31: v1.3(debug):v1.3-372-g1ba9c60
NOTICE:  BL31: Built : 17:51:33, Apr 30 2017
INFO:    BL31: Initializing runtime services
INFO:    BL31: Preparing for EL3 exit to normal world
INFO:    Entry point address = 0x37000000
INFO:    SPSR = 0x3c9

U-Boot 2017.05-rc2-00130-gd2255b0 (Apr 30 2017 - 17:51:28 +0200)poplar

Model: HiSilicon Poplar Development Board
BOARD: Hisilicon HI3798cv200 Poplar
DRAM:  1 GiB
MMC:   Hisilicon DWMMC: 0
In:    serial@f8b00000
Out:   serial@f8b00000
Err:   serial@f8b00000
Net:   Net Initialization Skipped
No ethernet found.

Hit any key to stop autoboot:  0
starting USB...
USB0:   USB EHCI 1.00
scanning bus 0 for devices... 1 USB Device(s) found
USB1:   USB EHCI 1.00
scanning bus 1 for devices... 4 USB Device(s) found
       scanning usb for storage devices... 1 Storage Device(s) found
       scanning usb for ethernet devices... 1 Ethernet Device(s) found

USB device 0:
    Device 0: Vendor: SanDisk Rev: 1.00 Prod: Cruzer Blade
            Type: Removable Hard Disk
            Capacity: 7632.0 MB = 7.4 GB (15630336 x 512)
... is now current device
Scanning usb 0:1...