[U-Boot] [PATCH] [v3] [upstream] powerpc/85xx: Adding configuration for DCSRCR to enable 32M access

Kumar Gala galak at kernel.crashing.org
Wed Jul 20 17:06:54 CEST 2011


On Jul 20, 2011, at 9:47 AM, Stephen George wrote:

> Configuring DCSRCR to define the DCSR space to be 1G instead
> of the default 4M. DCSRCR only allows selection of either 4M
> or 1G.
> Most DCSR registers are within 4M but the Nexus trace buffer
> is located at offset 16M within the DCSR.
> 
> Configuring the LAW to be 32M to allow access to the Nexus
> trace buffer. No TLB modification is required since accessing
> the Nexus trace buffer from within u-boot is not required.
> 
> Signed-off-by: Stephen George <stephen.george at freescale.com>
> ---
> arch/powerpc/cpu/mpc85xx/cpu_init.c   |   11 +++++++++++
> arch/powerpc/include/asm/immap_85xx.h |    7 ++++++-
> board/freescale/corenet_ds/law.c      |    3 ++-
> 3 files changed, 19 insertions(+), 2 deletions(-)

in the future:

1. when posting upstream (reset internal counter [v3])
2. don't CC internal list
3. dont need [upstream] in the subject

- k


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