Mainline:Broadcom Kona/Introduction: Difference between revisions

Line 63:

* Copy <code>devmem-read-block.sh</code> to the device and dump the relevant registers; save the files in two separate directories, to make sure you don't mistake downstream for mainline

* Run <code>generate-dump-diff.py</code> on the generated dumps and look at differences in the browser

=== Porting board files to DTS ===

New kernels use device trees to describe components. The Kona downstream kernels are too old to use it; rather, while they have some DTS support and files, they don't seem to actually be used in any of the production devices.

Instead, the relevant device info is stored in board files in <code>arch/arm/mach-(codename)</code> directories. These files contain the relevant setup for all componenets. There's usually a separate "board-bcm590xx" file that contains BCM590xx PMIC settings.

Note that board files contain configuration for lots of possible components that may not actually be present on your device; these are usually commented out with <code>#ifdef</code> statements referencing defconfig options. Make sure to have your device's defconfig handy for reference.

(todo: add more info here)

== See also ==

* [https://wiki.postmarketos.org/wiki/Mainlining Mainlining on the postmarketOS wiki]

@@ Line 63: / Line 63: @@
 * Copy <code>devmem-read-block.sh</code> to the device and dump the relevant registers; save the files in two separate directories, to make sure you don't mistake downstream for mainline
 * Run <code>generate-dump-diff.py</code> on the generated dumps and look at differences in the browser
+=== Porting board files to DTS ===
+New kernels use device trees to describe components. The Kona downstream kernels are too old to use it; rather, while they have some DTS support and files, they don't seem to actually be used in any of the production devices.
+Instead, the relevant device info is stored in board files in <code>arch/arm/mach-(codename)</code> directories. These files contain the relevant setup for all componenets. There's usually a separate "board-bcm590xx" file that contains BCM590xx PMIC settings.
+Note that board files contain configuration for lots of possible components that may not actually be present on your device; these are usually commented out with <code>#ifdef</code> statements referencing defconfig options. Make sure to have your device's defconfig handy for reference.
+(todo: add more info here)
 == See also ==
 * [https://wiki.postmarketos.org/wiki/Mainlining Mainlining on the postmarketOS wiki]