On 04/03/2013 09:00 PM, Spencer Cheng wrote: > Hi Stephen, > > On Apr 3, 2013, at 17:35, Stephen Warren <swarren@xxxxxxxxxxxxx> wrote: >> Spencer, which 3.8 kernel are you attempting to use? >> > > It was the stable 3.8 kernel at the time, perhaps 3.8.2. > >> As Peter mentioned, we don't support CARMA upstream at the moment. >> However, in theory, you should simply need to write a device tree file >> to enable the upstream kernel to boot on CARMA. > > Is there a HowTo on writing the device tree file? I don't think there's an explicit HowTo. To get a general idea of DT content, I would start by simply reading the existing Tegra device trees in the upstream kernel. It's probably best to take a look at the Tegra-specific tree so you see the very latest changes: git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra.git branch for-next files arch/arm/boot/dts/tegra*.dts* directory Documentation/devicetree/bindings/ As far as general DT background information, you could look at the following links, which I cribbed from our internal wiki: http://devicetree.org/Main_Page (many other links are on this page). http://devicetree.org/Device_Tree_Usage (general DT structure for a board) http://devicetree.org/MPC5200:PCI (some background info re: PCI bindings; I have no idea how correct/applicable this is, but it should aid understanding at least) http://lists.ozlabs.org/listinfo/devicetree-discuss http://elinux.org/images/1/14/Glikely--device-tree.pdf http://elinux.org/Device_Trees http://wiki.freebsd.org/FlattenedDeviceTree http://www.denx.de/wiki/DULG/LinuxFDTBlob -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
