From: vigneshr@ti.com (Vignesh R)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 0/2] DRA7x: Increase QSPI frequency to 64MHz
Date: Wed, 20 Apr 2016 17:02:58 +0530 [thread overview]
Message-ID: <1461151980-28139-1-git-send-email-vigneshr@ti.com> (raw)
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
next reply other threads:[~2016-04-20 11:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-20 11:32 Vignesh R [this message]
2016-04-20 11:32 ` [PATCH v2 1/2] ARM: dts: dra7x: Remove QSPI pinmux Vignesh R
2016-04-20 11:33 ` [PATCH v2 2/2] ARM: dts: dra7x: Support QSPI MODE-0 operation at 64MHz Vignesh R
2016-04-22 19:33 ` Rob Herring
2016-04-26 17:52 ` Tony Lindgren
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