From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Zj0Zl-0001yc-LK for barebox@lists.infradead.org; Mon, 05 Oct 2015 07:52:50 +0000 Received: from ptx.hi.pengutronix.de ([2001:67c:670:100:1d::c0] ident=Debian-exim) by metis.ext.pengutronix.de with esmtps (TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.80) (envelope-from ) id 1Zj0ZP-00046O-VF for barebox@lists.infradead.org; Mon, 05 Oct 2015 09:52:27 +0200 Received: from sha by ptx.hi.pengutronix.de with local (Exim 4.80) (envelope-from ) id 1Zj0ZP-0001Y7-0W for barebox@lists.infradead.org; Mon, 05 Oct 2015 09:52:27 +0200 Date: Mon, 5 Oct 2015 09:52:26 +0200 From: Sascha Hauer Message-ID: <20151005075226.GB7825@pengutronix.de> References: <1441033966-14045-1-git-send-email-s.hauer@pengutronix.de> <1441033966-14045-3-git-send-email-s.hauer@pengutronix.de> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <1441033966-14045-3-git-send-email-s.hauer@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: Re: [PATCH 3/3] spi: i.MX: optimize transfers for ECSPI v2.3 To: Barebox List On Mon, Aug 31, 2015 at 05:12:46PM +0200, Sascha Hauer wrote: > Instead of writing one word to the txfifo and then wait until > one is received in the rxfifo we can write until the txfifos > are not full and read as long the rxfifos contain data. This > makes transfers for the m25p80 driver around 7 times faster > here. I had to revert this one for now as it doesn't work on the Efika MX Smartbook on which the MC13892 is connected via SPI. I'll rework this once I'm back from ELCE. Sascha -- Pengutronix e.K. | | Industrial Linux Solutions | http://www.pengutronix.de/ | Peiner Str. 6-8, 31137 Hildesheim, Germany | Phone: +49-5121-206917-0 | Amtsgericht Hildesheim, HRA 2686 | Fax: +49-5121-206917-5555 | _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox