On 28.11.2015 17:52, Andrew Lunn wrote: > On Sat, Nov 28, 2015 at 12:14:05PM +0100, Sebastian Hesselbarth wrote: >> Current NAND node has an additional flash partition for the whole >> flash overlapping with real partitions. Remove this partition as >> the whole flash is already represented by the NAND device itself. > > If i remember correctly, we discussed this when the contribution was > made. I think the stock firmware might use this for applying updates. > Maybe Benoit can comment? Yes, please. > If so, removing this will break compatibility with stock firmware. Do > we want to do that? There are a few other mvebu dts files with a > partition spanning the whole flash. Should we remove them as well? Well, there is already a mtd device that spans the whole flash so what is the purpose of another "partition" that isn't a part but all of the device? Actually, I doubt that a FW update will wipe the flash as a whole, i.e. including boot loader, boot env, user config. Anyway, let's see if Benoit can shed some light on this. FWIW, neither single partitions nor a combined partitions node should be a direct sub-node of the _controller_ but a NAND _device_ node instead. Luckily, multi-device systems are not that common, so I guess we wait with it until such a system pops up for testing. Sebastian -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
