[U-Boot] [PATCH] dfu: fix some issues with reads/uploads

[Stephen Warren <swarren@wwwdotorg.org>]

On 05/30/2014 02:28 AM, Lukasz Majewski wrote:
...
> I've tested if raw u-boot can be downloaded and uploaded via DFU. The
> u-boot size is 1MiB precisely. 
> 
> Corresponding dfu_alt_info entry: 
> "u-boot raw 0x80 0x800;" \
...
> 2. Upload (raw):
> 
> dfu-util -a0 -U u-boot-mmc.bin_target
> It exits immediately and I can only see the file size of 0.
> 
> So obviously we have regression here. However, since I didn't covered
> this case in my tests I don't know when it was broken.

Hmmm. I tested with that exact value of dfu_alt_info and got back an
exactly 1MB file with either the dfu-util packaged in Ubuntu 12.10, or
with the latest git tree of dfu-util. Can you investigate why you're
getting back a 0-length file? Perhaps there's some error condition, so
dfu-util exits before any data is downloaded, or perhaps when
dfu_get_medium_size_mmc() is called, either lba_size or lba_blk_size is
0 (neither should be...)

Thanks.