On Wed, Jan 14, 2015 at 12:43:25PM +0100, Rafał Miłecki wrote: > On 13 January 2015 at 16:56, Maxime Ripard > <maxime.rip...@free-electrons.com> wrote: > > Some devices out there only have a NOR flash to store the rootfs on. > > > > While using UBI is arguable on this kind of NAND, this is something that > > should > > be supported. > > So why use UBI at all? Doesn't it make more sense to stick to the > JFFS2? You should be even able to easily create 2 different image > types (one for NOR, one for NAND) in one target (see bcm53xx).
The Openblocks AX3 has a fairly large NOR (128MB) which would make JFFS2 a rather poor choice, and the UBI overhead wouldn't be that bad. The A385-RD board has a much smaller SPI-NOR (16MB) though, so we could use jffs2 there, but I wasn't seeing much point at creating a whole new layout just for a single board. That does make sense though. Maxime -- Maxime Ripard, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com
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