On 23/05/2018 15:00, Marek Vasut wrote:
On 05/23/2018 07:52 PM, DATACOM - Paulo.Zaneti wrote:
On 23/05/2018 14:43, Marek Vasut wrote:
On 05/23/2018 07:37 PM, DATACOM - Paulo.Zaneti wrote:
On 23/05/2018 14:03, Marek Vasut wrote:
On 05/23/2018 07:00 PM, DATACOM - Paulo.Zaneti wrote:
Hi,
Hi,
When trying to migrate a board from u-boot version 2016.09 to version
2018.03, I found a problem with a USB 2.0 device which used to work on
version 2016.09.
Does it still happen in u-boot/master ?
Yes, it still happens.
I just tested it with the following commit:
dca268a .travis.yml: Further optimizations
In u-boot version 2016.09 the device appears like this:
2: Mass Storage, USB Revision 2.0
- SanDisk Cruzer Blade 200443243002FB509E64
Let me guess, is this a DWC2-based host ? You didn't mention which SoC
or USB controller it is.
Cfr https://lists.denx.de/pipermail/u-boot/2016-January/240090.html ,
DWC2 has problems with those sandisk sticks.
No, it is a NXP T1024 SoC.
Do you think it may be a problem with the SoC or NXP USB host driver ?
So that's chipidea ? That one should be reasonably sane.
I don't think so. It uses following drivers:
drivers/usb/host/ehci-fsl.c
drivers/usb/host/ehci-hcd.c
Submit the patch you had in mind and let's see what happens.
I just noticed that this stick needs more time after the
usb_set_address() call.
I increased the mdelay(10) to mdelay(20) and the "usb start" command worked.
But the problem is that I am still not convinced that this should be the
solution.
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