[RFC PATCH 0/6] nvmem: add block device NVMEM provider

Christoph Hellwig hch at infradead.org
Thu Jul 20 00:09:09 PDT 2023


On Wed, Jul 19, 2023 at 11:01:14PM +0100, Daniel Golle wrote:
> This series is meant to open the discussion on how exactly the device tree
> schema for block devices and partitions may look like, and even if using
> the block layer to back the NVMEM device is at all the way to go -- to me
> it seemed to be a good solution because it will be reuable e.g. for NVMe.

If only NVMe did something sane there.  NVMe copied the completely
idiotic idea of boot partitions from eMMC/SD, and made it even worse
by first requiring bit banged register access for them, and now adding
a weird admin command to read them, which is not bound to a block
device.  If we want to support that in NVMe we'll need code in the
nvme core, but I hope we can avoid it and no one sane (that is
everyone but the completely clueless BIOS people at Intel) will never
use this completely fucked up boot partition concept.




More information about the linux-mtd mailing list