From: Roger Quadros <rogerq@ti.com> To: <tony@atomide.com> Cc: <computersforpeace@gmail.com>, <ezequiel@vanguardiasur.com.ar>, <javier@dowhile0.org>, <fcooper@ti.com>, <nsekhar@ti.com>, <linux-omap@vger.kernel.org>, <devicetree@vger.kernel.org>, <linux-kernel@vger.kernel.org>, Roger Quadros <rogerq@ti.com> Subject: [PATCH v7 4/9] ARM: dts: am437x: Disable wait pin monitoring for NAND Date: Tue, 23 Feb 2016 18:37:20 +0200 [thread overview] Message-ID: <1456245445-31824-5-git-send-email-rogerq@ti.com> (raw) In-Reply-To: <1456245445-31824-1-git-send-email-rogerq@ti.com> 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> --- arch/arm/boot/dts/am437x-cm-t43.dts | 5 ----- arch/arm/boot/dts/am437x-gp-evm.dts | 2 -- arch/arm/boot/dts/am43x-epos-evm.dts | 2 -- 3 files changed, 9 deletions(-) diff --git a/arch/arm/boot/dts/am437x-cm-t43.dts b/arch/arm/boot/dts/am437x-cm-t43.dts index 4aa5357..9551c47 100644 --- 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 7081b88..b3cfedb 100644 --- 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 12b08cf..b1f2bd6 100644 --- 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 */ -- 2.5.0
WARNING: multiple messages have this Message-ID (diff)
From: Roger Quadros <rogerq@ti.com> To: tony@atomide.com Cc: computersforpeace@gmail.com, ezequiel@vanguardiasur.com.ar, javier@dowhile0.org, fcooper@ti.com, nsekhar@ti.com, linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Roger Quadros <rogerq@ti.com> Subject: [PATCH v7 4/9] ARM: dts: am437x: Disable wait pin monitoring for NAND Date: Tue, 23 Feb 2016 18:37:20 +0200 [thread overview] Message-ID: <1456245445-31824-5-git-send-email-rogerq@ti.com> (raw) In-Reply-To: <1456245445-31824-1-git-send-email-rogerq@ti.com> 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> --- arch/arm/boot/dts/am437x-cm-t43.dts | 5 ----- arch/arm/boot/dts/am437x-gp-evm.dts | 2 -- arch/arm/boot/dts/am43x-epos-evm.dts | 2 -- 3 files changed, 9 deletions(-) diff --git a/arch/arm/boot/dts/am437x-cm-t43.dts b/arch/arm/boot/dts/am437x-cm-t43.dts index 4aa5357..9551c47 100644 --- 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 7081b88..b3cfedb 100644 --- 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 12b08cf..b1f2bd6 100644 --- 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 */ -- 2.5.0
next prev parent reply other threads:[~2016-02-23 16:37 UTC|newest] Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top 2016-02-23 16:37 [PATCH v7 0/9] ARM: dts: omap2+: GPMC NAND node fixes Roger Quadros 2016-02-23 16:37 ` Roger Quadros 2016-02-23 16:37 ` [PATCH v7 1/9] ARM: dts: dra7: Fix NAND device nodes Roger Quadros 2016-02-23 16:37 ` Roger Quadros 2016-02-23 16:37 ` [PATCH v7 2/9] ARM: dts: dra7: Remove redundant nand property Roger Quadros 2016-02-23 16:37 ` Roger Quadros 2016-02-23 16:37 ` [PATCH v7 3/9] ARM: dts: am437x: Fix NAND device nodes Roger Quadros 2016-02-23 16:37 ` Roger Quadros 2016-02-23 16:37 ` Roger Quadros [this message] 2016-02-23 16:37 ` [PATCH v7 4/9] ARM: dts: am437x: Disable wait pin monitoring for NAND Roger Quadros 2016-02-23 16:37 ` [PATCH v7 5/9] ARM: dts: am335x: Fix NAND device nodes Roger Quadros 2016-02-23 16:37 ` Roger Quadros 2016-02-23 16:37 ` [PATCH v7 6/9] ARM: dts: am335x: Disable wait pin monitoring for NAND Roger Quadros 2016-02-23 16:37 ` Roger Quadros 2016-02-23 16:37 ` [PATCH v7 7/9] ARM: dts: dm816x: Fix NAND device nodes Roger Quadros 2016-02-23 16:37 ` Roger Quadros 2016-02-23 16:37 ` [PATCH v7 8/9] ARM: dts: dm8168-evm: ARM: dts: Disable wait pin monitoring for NAND Roger Quadros 2016-02-23 16:37 ` Roger Quadros 2016-02-23 16:37 ` [PATCH v7 9/9] ARM: dts: omap3: Fix NAND device nodess Roger Quadros 2016-02-23 16:37 ` Roger Quadros [not found] ` <CAHCN7xJqzgtuSW4KK93tHQh2WVRE4L5Zh6+5sGM+DZGU4qy5zg@mail.gmail.com> 2016-11-24 10:49 ` Roger Quadros 2016-11-24 10:49 ` Roger Quadros 2016-02-26 18:44 ` [PATCH v7 0/9] ARM: dts: omap2+: GPMC NAND node fixes Tony Lindgren 2016-02-29 16:13 ` Roger Quadros 2016-02-29 16:13 ` Roger Quadros 2016-02-29 17:17 ` Tony Lindgren 2016-02-29 17:17 ` Tony Lindgren
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