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ARM: dts: am437x: Disable wait pin monitoring for NAND

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The NAND Ready/Busy# line is connected to GPMC_WAIT0 pin and
can't be used for wait state insertion for NAND I/O read/write.
So disable read/write wait monitoring as per Reference Manual's
suggestion [1].

[1] AM437x TRM: SPRUHL7D: 9.1.3.3.12.2 NAND Device-Ready Pin

Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Roger Quadros 2016-02-23 18:37:20 +02:00 committed by Tony Lindgren
parent be3f39c835
commit cb9ea8b693
3 changed files with 0 additions and 9 deletions
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5
arch/arm/boot/dts/am437x-cm-t43.dts
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@ -170,17 +170,12 @@
gpmc,access-ns = <64>;
gpmc,rd-cycle-ns = <82>;
gpmc,wr-cycle-ns = <82>;
gpmc,wait-on-read = "true";
gpmc,wait-on-write = "true";
gpmc,bus-turnaround-ns = <0>;
gpmc,cycle2cycle-delay-ns = <0>;
gpmc,clk-activation-ns = <0>;
gpmc,wait-monitoring-ns = <0>;
gpmc,wr-access-ns = <40>;
gpmc,wr-data-mux-bus-ns = <0>;
gpmc,wait-pin = <0>;
#address-cells = <1>;
#size-cells = <1>;
/* MTD partition table */

2
arch/arm/boot/dts/am437x-gp-evm.dts
View File

@ -837,11 +837,9 @@
gpmc,access-ns = <30>;
gpmc,rd-cycle-ns = <40>;
gpmc,wr-cycle-ns = <40>;
gpmc,wait-pin = <0>;
gpmc,bus-turnaround-ns = <0>;
gpmc,cycle2cycle-delay-ns = <0>;
gpmc,clk-activation-ns = <0>;
gpmc,wait-monitoring-ns = <0>;
gpmc,wr-access-ns = <40>;
gpmc,wr-data-mux-bus-ns = <0>;
/* MTD partition table */

2
arch/arm/boot/dts/am43x-epos-evm.dts
View File

@ -586,11 +586,9 @@
gpmc,access-ns = <30>; /* tCEA + 4*/
gpmc,rd-cycle-ns = <40>;
gpmc,wr-cycle-ns = <40>;
gpmc,wait-pin = <0>;
gpmc,bus-turnaround-ns = <0>;
gpmc,cycle2cycle-delay-ns = <0>;
gpmc,clk-activation-ns = <0>;
gpmc,wait-monitoring-ns = <0>;
gpmc,wr-access-ns = <40>;
gpmc,wr-data-mux-bus-ns = <0>;
/* MTD partition table */