From mboxrd@z Thu Jan 1 00:00:00 1970 From: viresh kumar Subject: Re: [QUERY] Behavior of spi slave memories w.r.t chip select signal. Date: Fri, 13 May 2011 14:50:37 +0530 Message-ID: <4DCCF7E5.2090009@st.com> References: <4DCA0B77.8060700@st.com> <4DCCAB19.2020302@st.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Cc: Dinesh Kumar SHARMA , Martin BERGSTROM , Armando VISCONTI , Marcus COOPER , Shiraz HASHIM , "spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org" , Vikas MANOCHA , "linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org" To: Linus Walleij , Jamie Iles Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: spi-devel-general-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-spi.vger.kernel.org On 05/13/2011 12:24 PM, Linus Walleij wrote: > 2011/5/13 viresh kumar : >> Linus, Jamie, >> >> Have you ever seen this kind of issue? Which spi slave memories did you used for testing? >> I am using standard pl0022 and m25p80 driver. Tried in all modes: polling, interrupt, dma. > > Not really. I'll throw in a few people on CC and see if they have some hints. > Thanks guys. Issue is solved now, data must be latched on Rising Edge and i have passed phase as falling edge. -- viresh ------------------------------------------------------------------------------ Achieve unprecedented app performance and reliability What every C/C++ and Fortran developer should know. Learn how Intel has extended the reach of its next-generation tools to help boost performance applications - inlcuding clusters. http://p.sf.net/sfu/intel-dev2devmay From mboxrd@z Thu Jan 1 00:00:00 1970 From: viresh.kumar@st.com (viresh kumar) Date: Fri, 13 May 2011 14:50:37 +0530 Subject: [QUERY] Behavior of spi slave memories w.r.t chip select signal. In-Reply-To: References: <4DCA0B77.8060700@st.com> <4DCCAB19.2020302@st.com> Message-ID: <4DCCF7E5.2090009@st.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 05/13/2011 12:24 PM, Linus Walleij wrote: > 2011/5/13 viresh kumar : >> Linus, Jamie, >> >> Have you ever seen this kind of issue? Which spi slave memories did you used for testing? >> I am using standard pl0022 and m25p80 driver. Tried in all modes: polling, interrupt, dma. > > Not really. I'll throw in a few people on CC and see if they have some hints. > Thanks guys. Issue is solved now, data must be latched on Rising Edge and i have passed phase as falling edge. -- viresh