[fedora-arm] Slow USB storage on A9 processors

David A. Marlin dmarlin at redhat.com
Fri Sep 9 17:48:50 UTC 2011

Peter Robinson wrote:
> Hey All,
> I know it was discussed a while ago how the USB storage on PandaBoards
> was slow, not sure what the resolution was but saw this article on LWN
> that looks like our problem there for those that might not have seen
> the post elsewhere and are interested.
> https://lwn.net/Articles/457145/
I have built a kernel package for f13 and f15 using Mark's patches.  
They are available from the xpfa repos.


The f15 repo can be set up just like the f13 version by using f15 in the 
path, i.e.:

  sudo yum --nogpgcheck install \

If you install (or update) and configure the f15 grubby 
(grubby-7.0.16-5.01.fc15.armv7hl.rpm) it will create the U-Boot images 
for you (as per the instructions mentioned above).

  If you use grubby, be sure to configure /etc/sysconfig/uboot _before_ 
installing the kernel.
  This version of grubby has only been tested on a Panda board (omap) 
and on the Trim Slice (tegra).
  Be sure to install the correct kernel variant for your system, i.e.:
     sudo yum --enablerepo=xpfa install kernel-omap        # for Panda
     sudo yum --enablerepo=xpfa install kernel-tegra         # for Trim 

> Peter
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