ARM: dts: am335x: Provide NAND ready pin
authorRoger Quadros <rogerq@ti.com>
Thu, 7 Apr 2016 10:25:39 +0000 (13:25 +0300)
committerTony Lindgren <tony@atomide.com>
Tue, 12 Apr 2016 21:32:02 +0000 (14:32 -0700)
commit63015d73f345a9196e910b84c3f329a22556bcf4
treed8a7007a063a6cb34c3a46fefa8cd5fccc476123
parent99a4101182d6107af869fb6d41cb375c717c66ad
ARM: dts: am335x: Provide NAND ready pin

On these boards NAND ready pin status is avilable over
GPMC_WAIT0 pin.

For NAND we don't use GPMC wait pin monitoring but
get the NAND Ready/Busy# status using GPIOlib.
GPMC driver provides the WAIT0 pin status over GPIOlib.

Read speed increases from 7869 KiB/ to 8875 KiB/s
and write speed was unchanged at 5100 KiB/s.

Measured using mtd_speedtest.ko on am335x-evm.

Cc: Teresa Remmet <t.remmet@phytec.de>
Cc: Ilya Ledvich <ilya@compulab.co.il>
Cc: Yegor Yefremov <yegorslists@googlemail.com>
Cc: Rostislav Lisovy <lisovy@gmail.com>
Cc: Enric Balletbo i Serra <eballetbo@iseebcn.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
arch/arm/boot/dts/am335x-baltos-ir5221.dts
arch/arm/boot/dts/am335x-chilisom.dtsi
arch/arm/boot/dts/am335x-cm-t335.dts
arch/arm/boot/dts/am335x-evm.dts
arch/arm/boot/dts/am335x-igep0033.dtsi
arch/arm/boot/dts/am335x-phycore-som.dtsi