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README.md

NOTE: support in upstream Buildroot

BeagleV Starlight and the StarFive JH7100 SoC has been merged into upstream buildroot. Instructions are available in buildroot master branch.

Freelight U SDK

This builds a complete RISC-V cross-compile toolchain for the StarFiveTech JH7100 SoC. It also builds a OpenSBI binary with U-boot as payload and a FIT(flattened image tree) image with linux kernel, device tree, ramdisk and rootdisk for the Starlight Dev board and Visionfive Dev board.

Prerequisites

Recommend OS: Ubuntu 16.04/18.04

After installing the operating system. Do not forget updating all packages

$sudo apt update
$sudo apt upgrade

Install required additional packages.

$ sudo apt-get install autoconf automake autotools-dev bc bison xxd \
build-essential curl flex gawk gdisk git gperf libgmp-dev \
libmpc-dev libmpfr-dev libncurses-dev libssl-dev libtool \
patchutils python screen texinfo unzip zlib1g-dev device-tree-compiler libyaml-dev

Fetch code Instructions

Checkout this repository (the multimedia branch: JH7100_starlight_multimedia). Then you will need to checkout all of the linked submodules using:

$ git checkout --track origin/JH7100_starlight_multimedia
$ git submodule update --init --recursive

This will take some time and require around 5GB of disk space. Some modules may fail because certain dependencies don’t have the best git hosting.

Once the submodules are initialized, 4 submodules buildroot, HiFive_U-boot, linux and opensbi need checkout to corresponding branches manually, seeing .gitmodule

$ cd buildroot && git checkout --track origin/starlight_multimedia && cd ..
$ cd HiFive_U-Boot && git checkout --track origin/JH7100_Multimedia_V0.1.0 && cd ..
$ cd linux && git checkout --track origin/visionfive-5.13.y-devel && cd ..
$ cd opensbi && git checkout master && cd ..

Build Instructions

After update submodules, run make or make -jx and the complete toolchain and fw_payload.bin.out & image.fit will be built. The completed build tree will consume about 18G of disk space.

U-SDK support different hardware boards, you should specify the board you use when build the project. Now U-SDK support fit image build for three starfive boards: starlight, starlight-a1 or visionfive. You can choose building your target board with HWBOARD variables.

For starlight-a1 or a2 board: make HWBOARD=starlight-a1, or make starlight-a1 For starlight-a3 board: make HWBOARD=starlight, or make starlight For visionfive board: make HWBOARD=visionfive, or make visionfive

Note that if not specify the HWBOARD , the default make is for visionfive, just equal to make HWBOARD=visionfive Also you can specify the system environment variables HWBOARD to choose the board, eg. export HWBOARD=visionfive, then run make

By default, the above generated image does not contain VPU driver module(wave511, the video hard decode driver and wave521, the video hard encode driver). The following instructions will add VPU driver module according to your requirement:

$ make -jx
$ make vpudriver-build
$ rm -rf work/buildroot_initramfs/images/rootfs.tar
$ make -jx

Copy files fw_payload.bin.out and image.fit to tftp installation path to use

Path:
freelight-u-sdk/work/image.fit
freelight-u-sdk/work/opensbi/platform/generic/firmware/fw_payload.bin.out

Note the other make command to config uboot, linux, buildroot, busybox configuration:

make uboot-menuconfig      # uboot menuconfig
make linux-menuconfig      # Kernel menuconfig
make buildroot_initramfs-menuconfig   # initramfs menuconfig
make buildroot_rootfs-menuconfig      # rootfs menuconfig
make -C ./work/buildroot_initramfs/ O=./work/buildroot_initramfs busybox-menuconfig  # for initrafs busybox menuconfig in

Running on VisionFive/Starlight Board

After the VisionFive or Starlight is properly connected to the serial port cable, network cable and power cord, turn on the power from the wall power socket to power on the VisionFive or Starlight and you will see the startup information as follows:

bootloader version: 210209-4547a8d
ddr 0x00000000, 1M test
ddr 0x00100000, 2M test
DDR clk 2133M,Version: 210302-5aea32f
2

Press any key as soon as it starts up to enter the upgrade menu. In this menu, you can update uboot

bootloader version: 210209-4547a8d
ddr 0x00000000, 1M test
ddr 0x00100000, 2M test
DDR clk 2133M,Version: 210302-5aea32f
0
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
xxxxxxxxxxxFLASH PROGRAMMINGxxxxxxxxxxxxxxx
xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

0:update boot
1:quit
select the function:

Type «0» to update the uboot file fw_payload.bin.out via Xmodem mode, and then Type «1» to exit Flash Programming.

After that, you will see the information Starlight # or VisionFive # when press the «f» button, select the installation path and transfer image.fit through TFTP:

Step1: set enviroment parameter:

setenv bootfile vmlinuz;setenv fdt_addr_r 0x88000000;setenv fdt_high 0xffffffffffffffff;setenv fdtcontroladdr 0xffffffffffffffff;setenv initrd_high 0xffffffffffffffff;setenv kernel_addr_r 0x84000000;setenv fileaddr a0000000;setenv ipaddr 192.168.xxx.xxx;setenv serverip 192.168.xxx.xxx

Step2: upload image file to ddr:

tftpboot ${fileaddr} ${serverip}:image.fit;

Step3: load and excute:

bootm start ${fileaddr};bootm loados ${fileaddr};booti 0x80200000 0x86100000:${filesize} 0x86000000

When you see the buildroot login: message, then congratulations, the launch was successful

buildroot login:root
Password: starfive

Appendix I: How to Switch Display Framework Between DRM and Framebuffer

The default display framework is DRM now. Use make linux-menuconfig follow below could change between DRM and Framebuffer framework

If switch from DRMto Framebuffer display framework (hdmi display device),

1. Disable the DRM feature:
   CONFIG_DRM_I2C_NXP_TDA998X
   CONFIG_DRM_I2C_NXP_TDA9950
   CONFIG_DRM_STARFIVE

2. Enable the Framebuffer feature:
   CONFIG_FB_STARFIVE
   CONFIG_FB_STARFIVE_HDMI_TDA998X
   CONFIG_FB_STARFIVE_VIDEO

Note: Recommend Disable the below for usdk:
   CONFIG_NVDLA
   CONFIG_FRAMEBUFFER_CONSOLE

If switch from Framebuffer to DRM display framework ( hdmi display device):

1. Disable the below kernel config
   CONFIG_FB_STARFIVE
   CONFIG_FB_STARFIVE_HDMI_TDA998X
   CONFIG_FB_STARFIVE_VIDEO
   CONFIG_NVDLA

2. Enable the below kernel config:
   CONFIG_DRM_I2C_NXP_TDA998X
   CONFIG_DRM_I2C_NXP_TDA9950
   CONFIG_DRM_STARFIVE

Note: when use DRM to hdmi pipeline, please make sure CONFIG_DRM_STARFIVE_MIPI_DSI is disable, or will cause color abnormal.

If switch from Framebuffer to DRM display framework (mipi dsi display device):

based on the above drm to hdmi pipeline config, enable the below kernel config:
CONFIG_PHY_M31_DPHY_RX0
CONFIG_DRM_STARFIVE_MIPI_DSI

Appendix II: How to Support WM8960 and AC108 Audio Board

The visionfive and starlight board natively always support PWMDAC to audio-out (3.5mm mini-jack on the board), also support WM8960 board to audio-in and audio-out, also support AC108 board to audio-in. Note that the WM8960 and AC108 could not be both supported.

If support WM8960 board, need to modify the follow:

HiFive_U-Boot/board/starfive/jh7100/jh7100.c:

#define STARFIVE_AUDIO_AC108 0 #define STARFIVE_AUDIO_WM8960 1 #define STARFIVE_AUDIO_VAD 0 #define STARFIVE_AUDIO_PWMDAC 1 #define STARFIVE_AUDIO_SPDIF 0 #define STARFIVE_AUDIO_PDM 0

HiFive_U-Boot/arch/riscv/dts/jh7100-beaglev-starlight.dts:

/* #include «codecs/sf_pdm.dtsi» */ /* #include «codecs/sf_spdif.dtsi» */ /* #include «codecs/sf_ac108.dtsi» */ #include «codecs/sf_wm8960.dtsi» /* #include «codecs/sf_vad.dtsi» */

If support AC108 board, need to modify the follow:

HiFive_U-Boot/board/starfive/jh7100/jh7100.c:

#define STARFIVE_AUDIO_AC108 1 #define STARFIVE_AUDIO_WM8960 0 #define STARFIVE_AUDIO_VAD 0 #define STARFIVE_AUDIO_PWMDAC 1 #define STARFIVE_AUDIO_SPDIF 0 #define STARFIVE_AUDIO_PDM 0

HiFive_U-Boot/arch/riscv/dts/jh7100-beaglev-starlight.dts:

/* #include «codecs/sf_pdm.dtsi» */ /* #include «codecs/sf_spdif.dtsi» */ #include «codecs/sf_ac108.dtsi» /*#include «codecs/sf_wm8960.dtsi» */ /* #include «codecs/sf_vad.dtsi» */

Linux kernel config: run make linux-menuconfig, then enable SND_SOC_AC108

Appendix III: Build TF Card Booting Image

If you don’t already use a local tftp server, then you probably want to make the sdcard target; the default size is 16 GBs. NOTE THIS WILL DESTROY ALL EXISTING DATA on the target sdcard; please modify the following file.

conf/beaglev_defconfig_513:

change
CONFIG_CMDLINE="earlyprintk console=tty1 console=ttyS0,115200 debug rootwait stmmaceth=chain_mode:1"
to
CONFIG_CMDLINE="earlyprintk console=tty1 console=ttyS0,115200 debug rootwait stmmaceth=chain_mode:1 root=/dev/mmcblk0p3"

HiFive_U-Boot/configs/starfive_jh7100_starlight_smode_defconfig(using starlight or starlight-a1 board) or HiFive_U-Boot/configs/starfive_jh7100_visionfive_smode_defconfig (using visionfive board):

change
CONFIG_USE_BOOTCOMMAND is not set
to
CONFIG_USE_BOOTCOMMAND=y

change
#CONFIG_BOOTCOMMAND="run mmcsetup; run fdtsetup; run fatenv; echo 'running boot2...'; run boot2"
to
CONFIG_BOOTCOMMAND="run mmcsetup; run fdtsetup; run fatenv; echo 'running boot2...'; run boot2"

Please insert the TF card and run command df -h to check the device name /dev/sdXX, then run command umount /dev/sdXX», then run the following instructions to build TF card image:

make buildroot_rootfs -jx
make -jx
make vpubuild_rootfs
make clean
make -jx
make buildroot_rootfs -jx
make DISK=/dev/sdX format-nvdla-rootfs && sync

Note: please also do not forget to update the fw_payload.bin.out which is built by this step.