sunxi: musb: Fix "usb reset" handling
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Cover letter [U-Boot] [PATCH 0/2] sunxi: musb: Fix "usb reset" handling
Hi,
Quoted 7 lines · Paul Kocialkowski
Le dimanche 14 juin 2015 ? 12:40 +0200, Hans de Goede a ?crit :
Quoted 5 lines
Hi Ian, Paul,
Here is a patch to fix the problems where most usb devices will no longer work after a "usb reset ", when connected to the otg controller in host mode + a related cleanup patch.
Quoted 8 lines
This works fine for an USB storage device and an USB2 keyboard but does not work with an USB1 keyboard, with error:
sunxi# usb reset
resetting USB...
USB0: scanning bus 0 for devices... USB device descriptor short read
(expected 8, got 0)
No USB Device found
Hmm, did you test my sunxi-wip branch perhaps? This bug does exist there, but it is the result of me refactoring things so that the musb code can use the device-model when build in host mode, which will allow enabling both the otg port in host mode and regular usb hosts in a single build, which is esp. useful for boards which have the otg hooked up in host-only mode (e.g. connected to an usb-a receptacle, or usb <-> sata bridge).
I've just retested current u-boot/master with just this patch and the problem you are describing does not happen then.
Sorry about my sunxi-wip being broken atm I try to always keep it 100% functional, but well it is a wip tree after all.
Regards,
Hans