Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]


Groups > linux.kernel > #1378676

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

From Vignesh R <vigneshr@ti.com>
Newsgroups linux.kernel
Subject [PATCH 0/2] DRA7x: Increase QSPI frequency to 64MHz
Date 2016-04-14 12:20 +0200
Message-ID <rnMxr-8f-5@gated-at.bofh.it> (permalink)
Organization linux.* mail to news gateway

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

-- 
2.8.1

Back to linux.kernel | Previous | Next | Find similar | Unroll thread


Thread

[PATCH 0/2] DRA7x: Increase QSPI frequency to 64MHz Vignesh R <vigneshr@ti.com> - 2016-04-14 12:20 +0200

csiph-web