Download the `Device Tree jh7110-visionfive-v2.dtb <https://github.com/starfive-tech/VisionFive2/releases/download/VF2_v3.1.5/jh7110-visionfive-v2.dtb>`_
from `StarFive VisionFive2 Software Releases <https://github.com/starfive-tech/VisionFive2/releases>`_
into the ``nuttx`` folder.
Inside the ``nuttx`` folder, create a Text File named ``nuttx.its``
with the following content:
::
/dts-v1/;
/ {
description = "NuttX FIT image";
#address-cells = <2>;
images {
vmlinux {
description = "vmlinux";
data = /incbin/("./nuttx.bin");
type = "kernel";
arch = "riscv";
os = "linux";
load = <0x0 0x40200000>;
entry = <0x0 0x40200000>;
compression = "none";
};
ramdisk {
description = "buildroot initramfs";
data = /incbin/("./initrd");
type = "ramdisk";
arch = "riscv";
os = "linux";
load = <0x0 0x46100000>;
compression = "none";
hash-1 {
algo = "sha256";
};
};
fdt {
data = /incbin/("./jh7110-visionfive-v2.dtb");
type = "flat_dt";
arch = "riscv";
load = <0x0 0x46000000>;
compression = "none";
hash-1 {
algo = "sha256";
};
};
};
configurations {
default = "nuttx";
nuttx {
description = "NuttX";
kernel = "vmlinux";
fdt = "fdt";
loadables = "ramdisk";
};
};
};
Package the NuttX Kernel, Initial RAM Disk and Device Tree into a
Flat Image Tree:
..code:: console
$ sudo apt install u-boot-tools
$ mkimage -f nuttx.its -A riscv -O linux -T flat_dt starfiveu.fit
The Flat Image Tree ``starfiveu.fit`` will be copied to a microSD Card
in the next step.
Booting
=======
NuttX boots on Star64 via a microSD Card. To prepare the microSD Card, download the
