Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S940380AbXHIPNr (ORCPT ); Thu, 9 Aug 2007 11:13:47 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1760057AbXHIPNh (ORCPT ); Thu, 9 Aug 2007 11:13:37 -0400 Received: from web25012.mail.ukl.yahoo.com ([217.146.183.115]:23289 "HELO web25012.mail.ukl.yahoo.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with SMTP id S1762075AbXHIPNg (ORCPT ); Thu, 9 Aug 2007 11:13:36 -0400 DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=yahoo.co.uk; h=X-YMail-OSG:Received:Date:From:Subject:To:Cc:In-Reply-To:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-ID; b=3hIHEWKTOUYmXrH3hPVN/AwESErJZ06LuyawDzlGvXEQSEx86xY1Q3KdoqhNmouuY9cW5/C2dADHGo0Ki9Q2i+u66BUcR2+KWUSSX3JtjAjjh/WlADjR93RKl48Ce/Ns8aAtk0LOzSKnc8R4j+was867yTptaXJD/WxlUxvJeDo=; X-YMail-OSG: O2S5.yAVM1mcPZW_eSRpZyFJVCPEjDF2FZ1zoxWES2Mrj7.CeVUljR4M56hKRYrGROIQO5EX5fdXdAHCDC481xSluO0xqO..NAJLIIH6_mS3hRQy2sQtuudJnhU- Date: Thu, 9 Aug 2007 16:06:54 +0100 (BST) From: Steven Newbury Subject: Re: [PATCH] pxa2xx PCMCIA timing issue on iPAQ H5550 To: Milan Plzik , linux-kernel@vger.kernel.org Cc: linux-pcmcia@lists.infradead.org In-Reply-To: <1186172532.32154.30.camel@localhost> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7BIT Message-ID: <817976.91299.qm@web25012.mail.ukl.yahoo.com> Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1564 Lines: 36 --- Milan Plzik wrote: > Good day, > > recently I've been trying to get working PCMCIA interface on H5000 > ipaq series, using dual PCMCIA sleeve. So far things work correctly, but > I had to do one modification to drivers/pcmcia/pxa2xx_base.c to get the > interface working with orinoco gold PCMCIA card (wired pcnet_cs ethernet > card worked even without this modification). Patch attached. > > The issue has something to do with assert time on PCMCIA bus, but I'm > not really sure what -- I found the working value just by trial&error > approach. I'm not sure how is the assert value in pxa2xx_mcxx_asst > calculated (I know, simple formula, but the reason why is it calculated > that way is not obvious for me), neither that my modification is > correct. It just works with iPAQ. > I posted a patch to linux-arm-kernel which reworked the timing code. The existing is/was IMHO wrong and this showed up for me with frequency scaling where the code would not keep the PCMCIA timings constant with changes to the core frequency. Here it is: http://marc.info/?l=linux-arm-kernel&m=116861295404294&w=2 Steve ___________________________________________________________ For email that puts you in control, choose Yahoo! Mail. http://uk.docs.yahoo.com/mail/addressguard2.html - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/