linux-kernel - [PATCH 0/2] DRA7x: Increase QSPI frequency to 64MHz

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Message-ID: <1460629101-24309-1-git-send-email-vigneshr@ti.com>
Date:	Thu, 14 Apr 2016 15:48:19 +0530
From:	Vignesh R <vigneshr@...com>
To:	Tony Lindgren <tony@...mide.com>
CC:	Rob Herring <robh+dt@...nel.org>, Vignesh R <vigneshr@...com>,
	<nsekhar@...com>, <devicetree@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH 0/2] DRA7x: Increase QSPI frequency to 64MHz


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.dts                   | 20 ++------------------
 3 files changed, 11 insertions(+), 39 deletions(-)

-- 
2.8.1