[PATCH 0/9] Switch internal registers address to 0xF1 on Armada 370/XP

Thomas Petazzoni thomas.petazzoni at free-electrons.com
Wed May 22 09:52:18 EDT 2013


Dear Russell King - ARM Linux,

On Wed, 22 May 2013 14:43:36 +0100, Russell King - ARM Linux wrote:
> On Wed, May 22, 2013 at 12:01:29PM +0200, Sebastian Hesselbarth wrote:
> > I tried the above on Dove which is possibly affected by the workaround
> > as it is also ARMv7. In Dove you can access unmapped addresses without
> > any problems, but as Thomas already stated Armada 370/XP just hang.
> > Must be some default AHB slave in Dove, which Armada 370/XP is missing.
> 
> It may be some clock setting somewhere on the 370/XP.  The Dove will hang
> as well if you prod at peripherals which you've turned their clocks off.

The register in question (offset 0x20080 from the base address of the
internal register) is part of the "core" registers, so I clearly don't
see how the system could even be booting if this clock was gated. No?

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com



More information about the linux-arm-kernel mailing list