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author | Waldemar Brodkorb <wbx@openadk.org> | 2014-03-16 22:14:34 +0100 |
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committer | Waldemar Brodkorb <wbx@openadk.org> | 2014-03-16 22:14:34 +0100 |
commit | 732db5d2473cb5bf2c7d3e28b67e47cecf6008a8 (patch) | |
tree | f6df5d74b1f9ed8dbaa4742779f4ab2bf942622d /docs/customize-kernel-config.txt | |
parent | 1133719749afb61faf8974c87e41c14384b03444 (diff) | |
parent | aaa312e56871e89b97704e5ac8c686fe7966c122 (diff) |
Merge branch 'master' of git+ssh://openadk.org/git/openadk
Diffstat (limited to 'docs/customize-kernel-config.txt')
-rw-r--r-- | docs/customize-kernel-config.txt | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/docs/customize-kernel-config.txt b/docs/customize-kernel-config.txt new file mode 100644 index 000000000..9adeb7a9d --- /dev/null +++ b/docs/customize-kernel-config.txt @@ -0,0 +1,48 @@ +// -*- mode:doc; -*- +// vim: set syntax=asciidoc: + +[[kernel-custom]] +Customizing the Linux kernel configuration +~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + +The Linux kernel configuration can be customized using +make menuconfig+. +OpenADK uses a combination of Linux miniconfig feature and user defined +features to generate a valid Linux configuration for your target. +Some features and drivers are not selectable via +make menuconfig+, either +because your choosen target system does not have support for it or the +option is not implemented, yet. OpenADK uses some kind of abstraction +layer between the real full featured and complicated Linux kernel configuration +and you. It is not perfect and does include a lot of manual work in ++target/linux/config+, but it works in a acceptable way. + +If you just want to view the Linux configuration, which is actually +used for your target, you can execute following command: + +--------------- + $ make kernelconfig +--------------- + +Any changes here will get lost and will not be used to generate a kernel for +your target. If you want to change the existing kernel configuration you need +to follow these steps. + +The basic kernel configuration used for your choosen target is concatenated from +following two files: ++target/linux/kernel.config+ and +target/<arch>/kernel/<system>+. + +So if you would like to change any basic stuff, just edit the files and recreate your +firmware via: + +--------------- + $ make +--------------- + +OpenADK automatically recognizes any change and will rebuild the kernel. + +The base kernel configuration for your target generated by OpenADK is normally just enough to +bootup the system with support for your board, serial console, network card and boot medium. +(like a hard disk, sd card or flash partition) + +If you need to enable some new optional drivers or features, which are not available in ++make menuconfig+, you need to dig in +target/linux/config+. There is the abstraction layer +for the real kernel configuration. |