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From: shawnguo@kernel.org (Shawn Guo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH][RESEND] Documentation: binding: Update endianness usage
Date: Thu, 30 Nov 2017 08:51:09 +0800	[thread overview]
Message-ID: <20171130005108.GE22908@dragon> (raw)
In-Reply-To: <1511955071-8770-1-git-send-email-prabhakar.kushwaha@nxp.com>

On Wed, Nov 29, 2017 at 05:01:11PM +0530, Prabhakar Kushwaha wrote:
> IFC controller version < 2.0 support IFC register access as
> big endian. These controller version also require IFC NOR signals to
> be connected in reverse order with NOR flash.
> 
> IFC >= 2.0 is other way around.
> 
> So updating IFC binding to take care of both using endianness field.
> 
> Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha@nxp.com>

I would suggest something like 'dt-bindings: ifc: ...' to be the prefix.

Shawn

> ---
>  Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt b/Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt
> index 89427b0..824a2ca 100644
> --- a/Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt
> +++ b/Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt
> @@ -18,8 +18,10 @@ Properties:
>                interrupt (NAND_EVTER_STAT).  If there is only one,
>                that interrupt reports both types of event.
>  
> -- little-endian : If this property is absent, the big-endian mode will
> -                  be in use as default for registers.
> +- little-endian or big-endin : It represents how IFC registers  to be accessed.
> +			It also represents connection between controller and
> +			NOR flash. If this property is absent, the big-endian
> +			mode will be in use as default.
>  
>  - ranges : Each range corresponds to a single chipselect, and covers
>             the entire access window as configured.
> -- 
> 1.9.1
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel at lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

WARNING: multiple messages have this Message-ID (diff)
From: Shawn Guo <shawnguo-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>
To: Prabhakar Kushwaha <prabhakar.kushwaha-3arQi8VN3Tc@public.gmane.org>
Cc: devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	robh-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org,
	mark.rutland-5wv7dgnIgG8@public.gmane.org,
	linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH][RESEND] Documentation: binding: Update endianness usage
Date: Thu, 30 Nov 2017 08:51:09 +0800	[thread overview]
Message-ID: <20171130005108.GE22908@dragon> (raw)
In-Reply-To: <1511955071-8770-1-git-send-email-prabhakar.kushwaha-3arQi8VN3Tc@public.gmane.org>

On Wed, Nov 29, 2017 at 05:01:11PM +0530, Prabhakar Kushwaha wrote:
> IFC controller version < 2.0 support IFC register access as
> big endian. These controller version also require IFC NOR signals to
> be connected in reverse order with NOR flash.
> 
> IFC >= 2.0 is other way around.
> 
> So updating IFC binding to take care of both using endianness field.
> 
> Signed-off-by: Prabhakar Kushwaha <prabhakar.kushwaha-3arQi8VN3Tc@public.gmane.org>

I would suggest something like 'dt-bindings: ifc: ...' to be the prefix.

Shawn

> ---
>  Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt b/Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt
> index 89427b0..824a2ca 100644
> --- a/Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt
> +++ b/Documentation/devicetree/bindings/memory-controllers/fsl/ifc.txt
> @@ -18,8 +18,10 @@ Properties:
>                interrupt (NAND_EVTER_STAT).  If there is only one,
>                that interrupt reports both types of event.
>  
> -- little-endian : If this property is absent, the big-endian mode will
> -                  be in use as default for registers.
> +- little-endian or big-endin : It represents how IFC registers  to be accessed.
> +			It also represents connection between controller and
> +			NOR flash. If this property is absent, the big-endian
> +			mode will be in use as default.
>  
>  - ranges : Each range corresponds to a single chipselect, and covers
>             the entire access window as configured.
> -- 
> 1.9.1
> 
> 
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
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  reply	other threads:[~2017-11-30  0:51 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-29 11:31 [PATCH][RESEND] Documentation: binding: Update endianness usage Prabhakar Kushwaha
2017-11-29 11:31 ` Prabhakar Kushwaha
2017-11-30  0:51 ` Shawn Guo [this message]
2017-11-30  0:51   ` Shawn Guo
2017-12-01  2:15   ` Rob Herring
2017-12-01  2:15     ` Rob Herring

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