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====== Edge-2L build Linux U-Boot ======


We provide [[kg>Fenix]] to help you build the Ubuntu OS images easily. You can follow the steps below to build U-Boot.

===== Setup environment =====

Configure the environment by choosing your ''board'' (e.g. ''Edge-2L''), ''U-Boot version'', ''Linux version'', ''system version'', etc.

```shell
$ source setenv.sh
```

Select the options that match your requirements.

===== Build U-Boot =====

Build U-Boot with a single command:

```shell
$ make uboot
```

The output binaries are located in the U-Boot source code root directory.  the following files: 

  * ''uboot.img'' - U-Boot image.
  * ''rk3588_spl_loader_vx.xx.xxx.bin'' - The SPL (Secondary Program Loader) image, where ''x.xx.xxx'' indicates version, e.g. ''1.07.111''.

===== Build U-Boot Debian package =====

You can also build the U-Boot Debian package:

```shell
$ make uboot-deb
```

The generated Debian packages are located in ''build/images/debs/{VERSION}/{BOARD}''.

**VERSION** : Refers to the Fenix version, e.g. ''1.1.1''\\
**BOARD** : Refers to the Khadas SBC, e.g. ''Edge-2L''

For example, the directory would be ''build/images/debs/1.1.1/Edge-2L/'', and the Debian package is named ''linux-u-boot-xxx-xxx_xxx-xxx_arm64.deb''.

  * Example SoC vendor Debian U-Boot package: ''linux-u-boot-edge-2l-vendor_1.0.11-2017.09_arm64.deb''

===== About U-Boot source code =====

The [[kg>u-boot/tree/khadas-edges-v2017.09|U-Boot source code for Edge-2L]] uses the branch: ''khadas-edges-v2017.09''.

===== See also =====

  * [[products:sbc:edge-2l:configurations:upgrade-linux-uboot]]
  * [[products:sbc:edge-2l:development:linux:build-linux-kernel]]
  * [[products:sbc:edge-2l:development:linux:build-ubuntu]]