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Re: early_ioremap for MIPS

To: Florian Fainelli <florian.fainelli@telecomint.eu>
Subject: Re: early_ioremap for MIPS
From: "Maciej W. Rozycki" <macro@linux-mips.org>
Date: Fri, 8 Feb 2008 11:05:12 +0000 (GMT)
Cc: linux-mips@linux-mips.org
In-reply-to: <200802071932.23965.florian.fainelli@telecomint.eu>
Original-recipient: rfc822;linux-mips@linux-mips.org
References: <200802071932.23965.florian.fainelli@telecomint.eu>
Sender: linux-mips-bounce@linux-mips.org
On Thu, 7 Feb 2008, Florian Fainelli wrote:

> Is there any need for early_ioremap on MIPS ? Seems like only x86_64 is 
> implementing it for now.

 There is hardly any need as generally KSEG0/KSEG1 and XPHYS mappings 
fulfil the need and are always available, even before paging has been 
initialised.  Some 32-bit systems with devices outside low 512MB of 
physical address space could potentially benefit though.  I recall some 
Alchemy systems may fall into this category.

  Maciej

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