From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vignesh R Date: Wed, 25 May 2016 13:18:43 +0530 Subject: [U-Boot] [PATCH] ARM: dts: dra7x: Support QSPI MODE-0 operation at 64MHz In-Reply-To: <20160520130234.GF4404@bill-the-cat> References: <20160520104122.3539-1-vigneshr@ti.com> <20160520130234.GF4404@bill-the-cat> Message-ID: <574558DB.6040009@ti.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 05/20/2016 06:32 PM, Tom Rini wrote: > On Fri, May 20, 2016 at 04:11:22PM +0530, Vignesh R wrote: > >> According to Data Manual(SPRS915P) of AM57x, TI QSPI controller on >> DRA74(rev 1.1+)/DRA72 EVM can support up to 64MHz in MODE-0, whereas >> MODE-3 is limited to 48MHz. Hence, switch to MODE-0 for better >> throughput. >> >> Signed-off-by: Vignesh R > > Are older revs seen in the wild or just within TI? Thanks! QSPI was never supported on rev 1.0 due to erratas, moreover rev 1.0s are not production version. -- Regards Vignesh