From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sekhar Nori Subject: Re: [PATCH] ARM: davinci: da850-evm: fix read access to SPI flash Date: Wed, 18 Jan 2017 15:28:21 +0530 Message-ID: References: <20170117125742.9536-1-fparent@baylibre.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=m.gmane.org@lists.infradead.org To: Kevin Hilman , Fabien Parent Cc: mark.rutland@arm.com, devicetree@vger.kernel.org, robh+dt@kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org List-Id: devicetree@vger.kernel.org On Wednesday 18 January 2017 05:55 AM, Kevin Hilman wrote: > Fabien Parent writes: > >> Read access to the SPI flash are broken on da850-evm, i.e. the data >> read is not what is actually programmed on the flash. >> According to the datasheet for the M25P64 part present on the da850-evm, >> if the SPI frequency is higher than 20MHz then the READ command is not >> usable anymore and only the FAST_READ command can be used to read data. >> >> This commit specifies in the DTS that we should use FAST_READ command >> instead of the READ command. >> >> Signed-off-by: Fabien Parent > > Tested on da850-evm on top of v4.10-rc3. This gets the DT boot > functionatliy in line with the legacy (board-file) boot. > > Tested-by: Kevin Hilman Applied with Kevin's Tested-by and also marked for stable. Sending pull request for v4.10-rc shortly. Thanks, Sekhar