This article will discuss the steps needed to download and compile a Bootable (SD) Linux Image for the ZCU102 using the OSL flow.
...
- mkdir repo/my_dt
- cd repo/my_dt
- git clone https://github.com/Xilinx/device-tree-xlnx
- cd device-tree-xlnx
- git checkout xilinx-v2020.1
- cd ../../../
- Create a .tcl file with the following contents:
| Code Block | ||
|---|---|---|
| ||
proc gen_dtb {hdf} {
open_hw_design $hdf
set_repo_path ./repo
create_sw_design device-tree -os device_tree -proc psu_cortexa53_0
generate_target -dir my_dts
} |
...
Creating the FIT image:
| Code Block | ||
|---|---|---|
| ||
/dts-v1/;
/ {
description = "U-Boot fitImage for plnx_aarch64 kernel";
#address-cells = <1>;
images {
kernel@0 {
description = "Linux Kernel";
data = /incbin/("./linux-xlnx/arch/arm64/boot/Image");
type = "kernel";
arch = "arm64";
os = "linux";
compression = "none";
load = <0x80000>;
entry = <0x80000>;
hash@1 {
algo = "sha1";
};
};
fdt@0 {
description = "Flattened Device Tree blob";
data = /incbin/("./my_dts/system.dtb");
type = "flat_dt";
arch = "arm64";
compression = "none";
hash@1 {
algo = "sha1";
};
};
ramdisk@0 {
description = "ramdisk";
data = /incbin/("./petalinux-user-image-plnx_aarch64.cpio.gz");
type = "ramdisk";
arch = "arm64";
os = "linux";
compression = "none";
hash@1 {
algo = "sha1";
};
};
};
configurations {
default = "conf@1";
conf@1 {
description = "Boot Linux kernel with FDT blob + ramdisk";
kernel = "kernel@0";
fdt = "fdt@0";
ramdisk = "ramdisk@0";
hash@1 {
algo = "sha1";
};
};
conf@2 {
description = "Boot Linux kernel with FDT blob";
kernel = "kernel@0";
fdt = "fdt@0";
hash@1 {
algo = "sha1";
};
};
};
}; |
- u-boot-xlnx/tools/mkimage -f fitimage.its fitimage.itb
Load the BOOT.BIN and the fitImage.itb on the SD card and boot. Stop at uboot, and
- fatload mmc 0 0x3000000 0x10000000 fitimage
- bootm 0x30000000x10000000
Users, can also update add the uboot u- boot-xlnx/include/configs/Xilinx_zynqmp.h to add this:
.scr to the SD Card from here: