[U-Boot] [PATCH 00/30] dm: Add driver-model support for block drivers

[Stephen Warren]

On 02/14/2016 07:16 PM, Simon Glass wrote:
> Recent additions of the MMC and DISK uclasses have indicated that it is time
> to look at adding a uclass for block devices. This series does this and
> includes a few clean-ups to the partition code also.
>
> A block device is typically a child device of its storage parent. For
> example an MMC device will have a block-device child. A USB storage device
> may have multiple block-device children, one for each LUN.
>
> With this series only USB storage and 'host' are converted over to use the
> new support. Several more remain, including SCSI, IDE and MMC. Each of these
> should get its own uclass.
>
> The uclass implements only a few basic features. A few tests are added to
> check that things work as expected.
>
> The code size impact of switching to driver model for block devices is
> small. One benefit is that it becomes possible to enumerate all block
> devices, regardless of their type.

This series looks OK, and I would give it an Acked-by, except that it 
seems to break DFU to SD card on the 3 systems where I'm running 
test/py, and even cause "dhcp" to fail on one of them (that could be 
either memory corruption caused by these patches, or pre-existing 
corruption that these patches shuffle around in memory so it only now 
causes a problem). I'll see if I can bisect these down to a specific 
patch in the series and see what's up.