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Date: Wed, 14 Mar 2012 13:09:54 +0800
From: "tiejun.chen" <tiejun.chen@windriver.com>
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To: hellohello <hellohello008@163.com>
Subject: Re: How to make a memory region to be cache disabled ? Cpu is mpc82XX
 or mpc83XX.
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hellohello wrote:
> How to make a memory region  to be cache disabled in linux?
> I'm porting mpc83XX from vxworks to linux. Now meet a question: Cpu use a memory region (GPCM mode of bus)  to access peripherals, we need this memory to be cache disabled.
> Linux Kernel is 2.6.25.
> Thanks very much for any hint! 

ioremap() is fine enough since it always set I|G as TLB entry attribute.

Tiejun