linux-kernel - Re: [PATCH 0/3] at91

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Message-Id: <1159262891.24662.25.camel@fuzzie.sanpeople.com>
Date:	26 Sep 2006 11:28:11 +0200
From:	Andrew Victor <andrew@...people.com>
To:	Haavard Skinnemoen <hskinnemoen@...el.com>
Cc:	Russell King <rmk+lkml@....linux.org.uk>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/3] at91_serial: Introduction

hi Haavard,

> Maybe we can agree on a platform_data format so
> that we can remove the #ifdef altogether?

The platform_data structure is currently defined in
include/asm-arm/arch-at91rm9200/board.h as:

struct at91_uart_data {
	short	use_dma_tx;	/* use transmit DMA? */
	short	use_dma_rx;	/* use receive DMA? */
};

I don't think the DMA-support is currently in mainline, but is in the
pending patches on http://maxim.org.za/AT91RM9200/2.6/

I guess we can just add another field:
	short	no_remap;	/* base address is already mapped */
(or something similar)


Regards,
  Andrew Victor


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