Re: [PATCH] powerpc/cpm: Clear muram before it is in use.

[Kumar Gala <galak@kernel.crashing.org>]

On Oct 19, 2011, at 2:18 AM, Kumar Gala wrote:

> From: Hongjun Chen <Hong-jun.Chen@freescale.com>
> 
> We need to ensure that MURAM is in a known and cleared out state before
> using it as the bootloader could have utilized it from its own purposes
> and left it in an unknown state.
> 
> If we don't clear it out we've seen issues with UCC ethernet:
> * Multi ethernet interfaces can't work simultanously.
> * Multi up/down Ethernet interfaces will halt these ports.
> * UCC1 RGMII can't work when kernel boots from some hosts.
> 
> Signed-off-by: Kai.Jiang <Kai.Jiang@freescale.com>
> Signed-off-by: Hongjun Chen <Hong-jun.Chen@freescale.com>
> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
> ---
> arch/powerpc/sysdev/cpm_common.c |    3 ++-
> 1 files changed, 2 insertions(+), 1 deletions(-)

applied

- k