[U-Boot] [PATCH 4/4] dfu: add SF backend

[Stephen Warren <swarren@wwwdotorg.org>]

On 09/21/2015 08:55 PM, Fabio Estevam wrote:
> On Mon, Sep 21, 2015 at 10:50 PM, Fabio Estevam <festevam@gmail.com> wrote:
>> Stephen,
>>
>> On Mon, Sep 21, 2015 at 2:37 PM, Fabio Estevam <festevam@gmail.com> wrote:
>>> On Mon, Sep 21, 2015 at 2:31 PM, Stephen Warren <swarren@wwwdotorg.org> wrote:
>>>
>>>> I haven't tested SF support recently (only MMC). However, it should still
>>>> work:-) Are you using ci_udc? If so, make sure you have this very recent
>>>> patch:
>>>>
>>>>> commit b337b3b2a53f112a217f4bd31307b02f830bb787
>>>>> Author: Stephen Warren <swarren@nvidia.com>
>>>>> Date:   Fri Sep 11 17:10:02 2015 -0600
>>>>>
>>>>>     usb: ci_udc: fix emissions of ZLPs
>>>
>>> Yes, I am using ci_udc and this patch is applied.
>>
>> Do you recall what you used as 'dfu_alt_info' variable when flashing
>> SPI via DFU?
> 
> Nevermind. I fixed the issue and will submit the patch shortly.

Oh good:-)

I was going to give you my dfu_alt_info, but it's at work right now, so
I was waiting until tomorrow. I did try to repro this, but I was having
a lot of trouble with both the two boards I have that have SPI, so
wasn't able to test yet.

One thing I did notice: dfu_sf.c's parsing code doesn't work with
multiple entries in dfu_alt_info (e.g. for different partitions) since
the parsing of the device parameter (to the dfu command; not part of
dfu_info) modifies that parameter so it can't be parsed the second time
around. Since you're set up to test this, perhaps you could fix it too?
I assume all it'd need is to add a strdup()/free() to the start/end of
the alt info parsing function?