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ARM: dts: omap3-beagle: Provide NAND ready pin

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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 13212 KiB/ to 15753 KiB/s
and write speed was unchanged at 4404 KiB/s.

Measured using mtd_speedtest.ko on omap3-beagle-c4.

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Roger Quadros 2016-04-07 13:25:40 +03:00 committed by Tony Lindgren
parent 63015d73f3
commit 4cb53a2308
1 changed files with 1 additions and 0 deletions
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arch/arm/boot/dts/omap3-beagle.dts
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@ -390,6 +390,7 @@
interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
<1 IRQ_TYPE_NONE>; /* termcount */
ti,nand-ecc-opt = "ham1";
rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */
nand-bus-width = <16>;
#address-cells = <1>;
#size-cells = <1>;