Unknown L3 interrupt/error

I'm trying to bring up a custom OMAP4 board and I get this error as soon as the EHCI USB controller is initialized:

  WARNING: at /local/new_kernel/arch/arm/mach-omap2/omap_l3_noc.c:99 l3_interrupt_handler+0x114/0x174()
  L3 standard error: TARGET:ABE at address 0x0

Can someone enlighten me what this means and what might be causing it? That USB controller is working fine in U-Boot.

n.b. I'm working from the Ubuntu 12.04 kernel sources
git://dev.omapzoom.org/pub/scm/integration/kernel-ubuntu.git ti-ubuntu-3.4-1485.7

Thanks for any pointers

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Gary Thomas                 |  Consulting for the
MLB Associates              |    Embedded world
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