From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wi0-f170.google.com ([209.85.212.170]:35702 "EHLO mail-wi0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1758175AbbDWO76 (ORCPT ); Thu, 23 Apr 2015 10:59:58 -0400 Received: by widdi4 with SMTP id di4so219173819wid.0 for ; Thu, 23 Apr 2015 07:59:56 -0700 (PDT) Date: Thu, 23 Apr 2015 16:59:53 +0200 From: Alexander Aring Subject: Re: at86rf233 on BeagleBone Black Message-ID: <20150423145952.GD9284@omega> References: <551EDFCA.3070905@fid4.com> <20150403191320.GD773@omega> <20150414150656.GB2179@omega> <553024C3.2020207@fid4.com> <55307D66.7020606@gmail.com> <55310A85.5080601@fid4.com> <20150417221913.GA3338@omega> <55353FC0.5050909@fid4.com> <20150423093739.GA8178@omega> <5538F7E7.9020308@fid4.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <5538F7E7.9020308@fid4.com> Sender: linux-wpan-owner@vger.kernel.org List-ID: To: "Michael C. Cambria" Cc: Varka Bhadram , linux-wpan@vger.kernel.org On Thu, Apr 23, 2015 at 09:47:19AM -0400, Michael C. Cambria wrote: > > > On 04/23/2015 05:37 AM, Alexander Aring wrote: > >On Mon, Apr 20, 2015 at 02:04:48PM -0400, Michael C. Cambria wrote: > >.... > >>&spi1 { > >> status = "okay"; > >> pinctrl-names = "default"; > >> pinctrl-0 = <&spi1_pins>; > >> at86rf233@0 { > >> compatible = "atmel,at86rf233"; > >> spi-max-frequency = <500000>; > >now I detect this here. Why such low clock? You should use a 7.5 Mhz > >clock here not 500 Khz. I had some troubles with such a low clock and > >fragmentation handling. > > > >Means: > > > >change it to "spi-max-frequency = <7500000>;" > > > >- Alex > > The openlabs blog post [0] used 500 Khz: I know and that's terrible... This was tested when the driver was in a "bad" state. - Alex