From: Roger Quadros <rogerq-l0cyMroinI0@public.gmane.org>
To: tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org
Cc: robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
fcooper-l0cyMroinI0@public.gmane.org,
linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
Roger Quadros <rogerq-l0cyMroinI0@public.gmane.org>
Subject: [PATCH 11/13] ARM: dts: am437x: Provide NAND ready pin
Date: Thu, 7 Apr 2016 13:25:38 +0300 [thread overview]
Message-ID: <1460024740-19716-12-git-send-email-rogerq@ti.com> (raw)
In-Reply-To: <1460024740-19716-1-git-send-email-rogerq-l0cyMroinI0@public.gmane.org>
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 16516 KiB/ to 18813 KiB/s
and write speed was unchanged at 9941 KiB/s.
Measured using mtd_speedtest.ko.
Signed-off-by: Roger Quadros <rogerq-l0cyMroinI0@public.gmane.org>
---
arch/arm/boot/dts/am437x-gp-evm.dts | 1 +
arch/arm/boot/dts/am43x-epos-evm.dts | 1 +
2 files changed, 2 insertions(+)
diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index 8889be1..5e63e59 100644
--- a/arch/arm/boot/dts/am437x-gp-evm.dts
+++ b/arch/arm/boot/dts/am437x-gp-evm.dts
@@ -817,6 +817,7 @@
interrupt-parent = <&gpmc>;
interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
<1 IRQ_TYPE_NONE>; /* termcount */
+ rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */
ti,nand-ecc-opt = "bch16";
ti,elm-id = <&elm>;
nand-bus-width = <8>;
diff --git a/arch/arm/boot/dts/am43x-epos-evm.dts b/arch/arm/boot/dts/am43x-epos-evm.dts
index 83dfafa..2708f11 100644
--- a/arch/arm/boot/dts/am43x-epos-evm.dts
+++ b/arch/arm/boot/dts/am43x-epos-evm.dts
@@ -568,6 +568,7 @@
interrupt-parent = <&gpmc>;
interrupts = <0 IRQ_TYPE_NONE>, /* fifoevent */
<1 IRQ_TYPE_NONE>; /* termcount */
+ rb-gpios = <&gpmc 0 GPIO_ACTIVE_HIGH>; /* gpmc_wait0 */
ti,nand-ecc-opt = "bch16";
ti,elm-id = <&elm>;
nand-bus-width = <8>;
--
2.5.0
--
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next prev parent reply other threads:[~2016-04-07 10:25 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-07 10:25 [PATCH 00/13] ARM: dts: OMAP2+: Enable gpio controller for GPMC and add NAND ready pin Roger Quadros
[not found] ` <1460024740-19716-1-git-send-email-rogerq-l0cyMroinI0@public.gmane.org>
2016-04-07 10:25 ` [PATCH 01/13] ARM: dts: omap24xx: Enable gpio and interrupt controller for GPMC Roger Quadros
2016-04-07 10:25 ` [PATCH 02/13] ARM: dts: omap4: " Roger Quadros
2016-04-07 10:25 ` [PATCH 03/13] ARM: dts: omap5: " Roger Quadros
2016-04-07 10:25 ` [PATCH 04/13] ARM: dts: dra7: Enable gpio " Roger Quadros
2016-04-07 10:25 ` [PATCH 05/13] ARM: dts: am335x: " Roger Quadros
2016-04-07 10:25 ` [PATCH 06/13] ARM: dts: am4372: " Roger Quadros
2016-04-07 10:25 ` [PATCH 07/13] ARM: dts: omap3: " Roger Quadros
2016-04-07 10:25 ` [PATCH 08/13] ARM: dts: dm814x: " Roger Quadros
2016-04-07 10:25 ` [PATCH 09/13] ARM: dts: dm816x: " Roger Quadros
2016-04-07 10:25 ` [PATCH 10/13] ARM: dts: dra7x-evm: Provide NAND ready pin Roger Quadros
2016-04-07 10:25 ` Roger Quadros [this message]
2016-04-07 10:25 ` [PATCH 12/13] ARM: dts: am335x: " Roger Quadros
2016-04-07 10:25 ` [PATCH 13/13] ARM: dts: omap3-beagle: " Roger Quadros
2016-04-12 21:28 ` [PATCH 00/13] ARM: dts: OMAP2+: Enable gpio controller for GPMC and add " Tony Lindgren
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