linux-kernel - Re: [PATCH4/4] [POWERPC] Fix cpm

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Message-ID: <46F7DE85.7000401@freescale.com>
Date:	Mon, 24 Sep 2007 10:57:57 -0500
From:	Scott Wood <scottwood@...escale.com>
To:	Jochen Friedrich <jochen@...am.de>
CC:	linuxppc-embedded@...abs.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH4/4] [POWERPC] Fix cpm_uart driver

Jochen Friedrich wrote:
> 
> In cpm_uart_core, functions cpm_uart_init_bd and cpm_uart_init_scc
> an offset into DP RAM is calculated by substracting a physical
> memory constant from an virtual address. This patch fixes the
> problem by converting the virtual address into a physical
> first.

Huh?  DPRAM_BASE is a virtual address.  With this patch, you'd be 
subtracting a virtual address from a physical address.

-Scott
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