[PATCH v2 0/2] DRA7x: Increase QSPI frequency to 64MHz

From: Vignesh R
Date: Wed Apr 20 2016 - 07:33:36 EST




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(-)

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2.8.1