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

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>

diff --git a/arch/arm/boot/dts/am437x-cm-t43.dts b/arch/arm/boot/dts/am437x-cm-t43.dts
index 4aa5357b3a8437f07653edda9f565af4c9603c6a..9551c4713173b5d6c3c9de10abf484954935451f 100644 (file)
--- a/arch/arm/boot/dts/am437x-cm-t43.dts
+++ b/arch/arm/boot/dts/am437x-cm-t43.dts
@@ -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 */

diff --git a/arch/arm/boot/dts/am437x-gp-evm.dts b/arch/arm/boot/dts/am437x-gp-evm.dts
index 7081b887bbcc3552007be17197a61768c3aa0362..b3cfedb8c11e8ac8795a991c498aaa0423167439 100644 (file)
--- a/arch/arm/boot/dts/am437x-gp-evm.dts
+++ b/arch/arm/boot/dts/am437x-gp-evm.dts
@@ -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 */

diff --git a/arch/arm/boot/dts/am43x-epos-evm.dts b/arch/arm/boot/dts/am43x-epos-evm.dts
index 12b08cf85517a289989c08956e33066a6b2425bb..b1f2bd68d4856df79620315bc5f5437a9cd842f3 100644 (file)
--- a/arch/arm/boot/dts/am43x-epos-evm.dts
+++ b/arch/arm/boot/dts/am43x-epos-evm.dts
@@ -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 */