diff options
-rw-r--r-- | documentation/kernel-dev/kernel-dev-advanced.xml | 19 |
1 files changed, 12 insertions, 7 deletions
diff --git a/documentation/kernel-dev/kernel-dev-advanced.xml b/documentation/kernel-dev/kernel-dev-advanced.xml index dc5d9ba3dd..1b19f74073 100644 --- a/documentation/kernel-dev/kernel-dev-advanced.xml +++ b/documentation/kernel-dev/kernel-dev-advanced.xml @@ -48,14 +48,18 @@ This variable is typically set to the same value as the <ulink url='&YOCTO_DOCS_REF_URL;#var-MACHINE'><filename>MACHINE</filename></ulink> variable, which is used by - <ulink url='&YOCTO_DOCS_DEV_URL;#bitbake-term'>BitBake</ulink> - (e.g. "edgerouter" or "emenlow"). + <ulink url='&YOCTO_DOCS_DEV_URL;#bitbake-term'>BitBake</ulink>. + However, in some cases, the variable might instead refer to the + underlying platform of the <filename>MACHINE</filename>. + </para> + + <para> Multiple BSPs can reuse the same <filename>KMACHINE</filename> name if they are built using the same BSP description. - The "emenlow" and "emenlow-noemgd" BSP combination - in the <filename>meta-intel</filename> + The "ep108-zynqmp" and "qemuzynqmp" BSP combination + in the <filename>meta-xilinx</filename> layer is a good example of two BSPs using the same - <filename>KMACHINE</filename> value (i.e. "emenlow"). + <filename>KMACHINE</filename> value (i.e. "zynqmp"). See the <link linkend='bsp-descriptions'>BSP Descriptions</link> section for more information. </para> @@ -67,9 +71,10 @@ variable must be set to indicate the branch. <note> You can use the <filename>KBRANCH</filename> value to define an - alternate branch typically with a machine override as follows: + alternate branch typically with a machine override as shown here + from the <filename>meta-emenlow</filename> layer: <literallayout class='monospaced'> - KBRANCH_emenlow ?= "standard/emenlow" + KBRANCH_emenlow-noemgd = "standard/base" </literallayout> </note> </para> |