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-   -   Fix usb on omap hw when gcc 4.6 is used (http://www.linux-archive.org/ubuntu-kernel-team/542803-fix-usb-omap-hw-when-gcc-4-6-used.html)

Paolo Pisati 06-22-2011 01:17 PM

Fix usb on omap hw when gcc 4.6 is used
 
This is a multi-part message in MIME format.SRU Justification:

Impact: when compiled with gcc 4.6, we loose usb on every omap* hw.
Fix: see attached patch.
Testcase: compile an omap[4] kernel with gcc 4.6 and boot it, you will
notice there are no usb devices present.

beagle xm, natty kernel and gcc 4.6:

flag@ubuntu:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

versus

beagle xm, natty kernel and gcc 4.6 + ehci fix:

flag@ubuntu:~$ lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 002: ID 0424:9514 Standard Microsystems Corp.
Bus 001 Device 003: ID 0424:ec00 Standard Microsystems Corp.
Bus 001 Device 004: ID 03f0:5307 Hewlett-Packard

BugLink: http://launchpad.net/bug/791552

upstream commit 139540170d9d9b7ead3caaf540f161756b356d56

--
bye,
p.


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