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ARM: dts: am335x: 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] AM335x TRM: SPRUH73L: 7.1.3.3.12.2 NAND Device-Ready Pin

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>
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Roger Quadros authored and Tony Lindgren committed Feb 26, 2016
1 parent 0375214 commit db0f685
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Showing 6 changed files with 0 additions and 18 deletions.
3 changes: 0 additions & 3 deletions arch/arm/boot/dts/am335x-baltos-ir5221.dts
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Expand Up @@ -261,12 +261,9 @@
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>;

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3 changes: 0 additions & 3 deletions arch/arm/boot/dts/am335x-chilisom.dtsi
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Expand Up @@ -242,12 +242,9 @@
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>;
};
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3 changes: 0 additions & 3 deletions arch/arm/boot/dts/am335x-cm-t335.dts
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Expand Up @@ -326,12 +326,9 @@ status = "okay";
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>;
/* MTD partition table */
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3 changes: 0 additions & 3 deletions arch/arm/boot/dts/am335x-evm.dts
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Expand Up @@ -542,12 +542,9 @@
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>;
/* MTD partition table */
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3 changes: 0 additions & 3 deletions arch/arm/boot/dts/am335x-igep0033.dtsi
Original file line number Diff line number Diff line change
Expand Up @@ -152,12 +152,9 @@
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>;

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3 changes: 0 additions & 3 deletions arch/arm/boot/dts/am335x-phycore-som.dtsi
Original file line number Diff line number Diff line change
Expand Up @@ -189,13 +189,10 @@
gpmc,access-ns = <30>;
gpmc,rd-cycle-ns = <30>;
gpmc,wr-cycle-ns = <30>;
gpmc,wait-on-read = "true";
gpmc,wait-on-write = "true";
gpmc,bus-turnaround-ns = <0>;
gpmc,cycle2cycle-delay-ns = <50>;
gpmc,cycle2cycle-diffcsen;
gpmc,clk-activation-ns = <0>;
gpmc,wait-monitoring-ns = <0>;
gpmc,wr-access-ns = <30>;
gpmc,wr-data-mux-bus-ns = <0>;

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