From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755101AbcDTLde (ORCPT ); Wed, 20 Apr 2016 07:33:34 -0400 Received: from arroyo.ext.ti.com ([192.94.94.40]:48788 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752281AbcDTLdc (ORCPT ); Wed, 20 Apr 2016 07:33:32 -0400 From: Vignesh R To: Tony Lindgren CC: Rob Herring , Vignesh R , , , , , Subject: [PATCH v2 0/2] DRA7x: Increase QSPI frequency to 64MHz Date: Wed, 20 Apr 2016 17:02:58 +0530 Message-ID: <1461151980-28139-1-git-send-email-vigneshr@ti.com> X-Mailer: git-send-email 2.8.1 MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch series increases QSPI bus frequency to 64MHz and switch to SPI mode 0 in order to increase read/write throughput. First patch removes QSPI pinmux from DT as pinmux can only be done in U-Boot(see patch commit message for more info). Second patch does the dts changes to support 64MHz mode 0 operation. Tested on DRA74 and DRA72 EVM with U-Boot 2016.05-rc1. Vignesh R (2): ARM: dts: dra7x: Remove QSPI pinmux ARM: dts: dra7x: Support QSPI MODE-0 operation at 64MHz Documentation/devicetree/bindings/spi/ti_qspi.txt | 7 +++++++ arch/arm/boot/dts/dra7-evm.dts | 23 ++--------------------- arch/arm/boot/dts/dra72-evm-common.dtsi | 20 ++------------------ 3 files changed, 11 insertions(+), 39 deletions(-) -- 2.8.1