From: Scott Wood <scottwood@freescale.com>
To: Vitaly Bordug <vitb@kernel.crashing.org>
Cc: linuxppc-dev <linuxppc-dev@ozlabs.org>,
Paul Mackerras <paulus@samba.org>
Subject: Re: [PATCH] POWERPC 8xx: bump up initial memory limit for 8xx
Date: Wed, 01 Aug 2007 14:13:24 -0500 [thread overview]
Message-ID: <46B0DB54.8090705@freescale.com> (raw)
In-Reply-To: <20070717011723.23549.44672.stgit@localhost.localdomain>
Vitaly Bordug wrote:
> From: John Traill <john.traill@freescale.com>
>
> The 8xx can only support a max of 8M during early boot ( it seems a lot of
> 8xx boards only have 8M so the bug was never triggered ). The following
> change makes it able to run with 128M.
>
> Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org>
>
> ---
>
> arch/powerpc/mm/init_32.c | 3 +++
> 1 files changed, 3 insertions(+), 0 deletions(-)
>
> diff --git a/arch/powerpc/mm/init_32.c b/arch/powerpc/mm/init_32.c
> index e1f5ded..7cee86d 100644
> --- a/arch/powerpc/mm/init_32.c
> +++ b/arch/powerpc/mm/init_32.c
> @@ -133,6 +133,9 @@ void __init MMU_init(void)
> /* 601 can only access 16MB at the moment */
> if (PVR_VER(mfspr(SPRN_PVR)) == 1)
> __initial_memory_limit = 0x01000000;
> + /* 852 can only access 8MB at the moment */
> + if (PVR_VER(mfspr(SPRN_PVR)) == 0x50)
> + __initial_memory_limit = 0x00800000;
The comment should refer to 8xx, not 852, as this is a property of code
in head_8xx.S and not the chip itself.
Otherwise,
Acked-by: Scott Wood <scottwood@freescale.com>
-Scott
prev parent reply other threads:[~2007-08-01 19:13 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-17 1:17 [PATCH] POWERPC 8xx: bump up initial memory limit for 8xx Vitaly Bordug
2007-08-01 19:13 ` Scott Wood [this message]
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