Hey Nico,
        So I've been seeing USB issues on my beagle xm board with the latest
linaro-2.6.38 tree, where when the system boots, lsusb will only show
the hubs, but no devices. 

Andy reported seeing similar on his overo board, so I bisected the issue
down to:

9e64bb1e9f0613093b3e34ac5402fcfef0dcc35a is the first bad commit
commit 9e64bb1e9f0613093b3e34ac5402fcfef0dcc35a
Author: Keshava Munegowda <keshava_mgo...@ti.com>
Date:   Tue Mar 1 20:08:19 2011 +0530

    arm: omap: usb: Invoke usbhs core device initialization

    The usbhs intialization is invoked by all omap3 and omap4
    variant board files.

    Signed-off-by: Keshava Munegowda <keshava_mgo...@ti.com>
    Signed-off-by: Felipe Balbi <ba...@ti.com>



It looks like this patch is just converting the initialization over to
usbhs, so it doesn't really point out the specific issue, but it does
seem that something in the usbhs core isn't working properly.

Any tips here?

thanks
-john



The full bisect log is:
git bisect start   
# good: [47dc59f22a6af00691a98975d05a8a1601714e1b] OMAP4: PandaBoard: remove 
unused power regulators
git bisect good 47dc59f22a6af00691a98975d05a8a1601714e1b
# bad: [8061f3a885ec3538bf405ff3957c205b1ab2aae4] mach-ux500: correct MMC/SDI 
parameters
git bisect bad 8061f3a885ec3538bf405ff3957c205b1ab2aae4
# bad: [1c49cb09b5666aa0d6df3b58f6c621df92c5dd44] Merge commit '05f6894' 
(omap-for-linus) into linaro-2.6.38
git bisect bad 1c49cb09b5666aa0d6df3b58f6c621df92c5dd44
# bad: [0cd3fd78e5951c1631ee60a2026603d63c671d98] Merge commit '9ced9f0' 
(rmk/devel-stable) into linaro-2.6.38
git bisect bad 0cd3fd78e5951c1631ee60a2026603d63c671d98
# bad: [23e0d1066f429ab44305e96fbff13f1793886277] usb: Refactor irq enabling 
out of usb_add_hcd()
git bisect bad 23e0d1066f429ab44305e96fbff13f1793886277
# good: [c9642374d0e969e8c17f4f31cd1a2bd111634227] USB: fix unsafe 
USB_SS_MAX_STREAMS() definition
git bisect good c9642374d0e969e8c17f4f31cd1a2bd111634227
# bad: [45d1b7ae205e39e95ec65747f8871661aaa105e4] usb-gadget: fix warning in 
ethernet
git bisect bad 45d1b7ae205e39e95ec65747f8871661aaa105e4
# good: [37db3af11f02c2ccdf44a788694da16062a0333c] usb: otg: TWL4030: Update 
the last_event variable.
git bisect good 37db3af11f02c2ccdf44a788694da16062a0333c
# good: [181b250cf53233a7a7c6d7e1e9df402506712e93] arm: omap: usb: create 
common enums and structures for ehci and ohci
git bisect good 181b250cf53233a7a7c6d7e1e9df402506712e93
# bad: [19403165c272cc4ed00c97973e7271714b009708] usb: host: omap: ehci and 
ohci simplification
git bisect bad 19403165c272cc4ed00c97973e7271714b009708
# good: [2236396d4d23828a0875a4d447103d0ab48aed0b] arm: omap: usb: usbhs core 
device initialization
git bisect good 2236396d4d23828a0875a4d447103d0ab48aed0b
# bad: [3b68ae73d8afa925807ebaae7eb14e2afd43f5b5] arm: omap: usb: cleanup ehci 
and ohci resources and devices
git bisect bad 3b68ae73d8afa925807ebaae7eb14e2afd43f5b5
# bad: [9e64bb1e9f0613093b3e34ac5402fcfef0dcc35a] arm: omap: usb: Invoke usbhs 
core device initialization
git bisect bad 9e64bb1e9f0613093b3e34ac5402fcfef0dcc35a



_______________________________________________
linaro-dev mailing list
linaro-dev@lists.linaro.org
http://lists.linaro.org/mailman/listinfo/linaro-dev

Reply via email to