linux-kernel - Re: [PATCH v5 07/11] ARM: at91: select ATMEL_EBI when compiling a kernel for at91sam9 or sama5d3

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Date:	Thu, 4 Dec 2014 11:34:27 +0100
From:	Nicolas Ferre <nicolas.ferre@...el.com>
To:	Boris Brezillon <boris.brezillon@...e-electrons.com>,
	"Jean-Christophe Plagniol-Villard" <plagnioj@...osoft.com>,
	Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
	Andrew Victor <linux@...im.org.za>
CC:	Samuel Ortiz <sameo@...ux.intel.com>,
	Lee Jones <lee.jones@...aro.org>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	"Mark Rutland" <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	<devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, "Arnd Bergmann" <arnd@...db.de>,
	Jean-Jacques Hiblot <jjhiblot@...phandler.com>
Subject: Re: [PATCH v5 07/11] ARM: at91: select ATMEL_EBI when compiling a
 kernel for at91sam9 or sama5d3

Le 03/12/2014 21:44, Boris Brezillon a écrit :
> at91sam9* and sama5d* SoCs have an EBI (External Bus Interface).
> Select the ATMEL_EBI driver when support for these SoCs is selected.
> 
> Signed-off-by: Boris Brezillon <boris.brezillon@...e-electrons.com>
> ---
>  .../bindings/memory-controllers/atmel-ebi.txt          | 18 +++++++++---------
>  arch/arm/mach-at91/Kconfig                             |  2 ++
>  2 files changed, 11 insertions(+), 9 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/memory-controllers/atmel-ebi.txt b/Documentation/devicetree/bindings/memory-controllers/atmel-ebi.txt
> index 3749ea1..68af1ad 100644
> --- a/Documentation/devicetree/bindings/memory-controllers/atmel-ebi.txt
> +++ b/Documentation/devicetree/bindings/memory-controllers/atmel-ebi.txt
> @@ -16,6 +16,7 @@ Required properties:
>  			"atmel,at91sam9261-ebi"
>  			"atmel,at91sam9263-ebi0"
>  			"atmel,at91sam9263-ebi1"
> +			"atmel,at91sam9rl-ebi"
>  			"atmel,at91sam9g45-ebi"
>  			"atmel,at91sam9x5-ebi"
>  			"atmel,sama5d3-ebi"
> @@ -51,15 +52,14 @@ Required child cs node properties:
>  			memory layout.
>  
>  Optional child cs node properties:
> -- atmel,generic-dev		boolean property specifying if the device is
> -				a generic device.
> +- atmel,specialized-logic	boolean property specifying if the device is
> +				a connected to a specialized logic:
> +				NAND, Compact Flash, SDR-SDRAM.

Ah, ok, seen it here.

>  				The following properties are only parsed if
> -				this property is present.
> -				Specialized devices are attached to specialized
> -				controllers which are responsible for
> -				configuring the bus appropriately.
> -				Here are some examples of specialized
> -				controllers: NAND, CompactFlash, SDR-SDRAM.
> +				this property is absent.
> +				If this property is set, specialized controller
> +				drivers are responsible for configuring the bus
> +				appropriately.
>  
>  - atmel,bus-width:		width of the asynchronous device's data bus
>  				8, 16 or 32.
> @@ -99,7 +99,7 @@ present 0 is assumed):
>  - atmel,tdf-optimized		data float optimized mode. If present the data
>  				float time is optimized depending on the next
>  				device being accessed (next device setup
> -				time is substracted to the current devive data
> +				time is subtracted to the current device data
>  				float time).
>  
>  
> diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
> index 0e6d548..78b1412 100644
> --- a/arch/arm/mach-at91/Kconfig
> +++ b/arch/arm/mach-at91/Kconfig
> @@ -49,6 +49,7 @@ config SOC_AT91SAM9
>  	select GENERIC_CLOCKEVENTS
>  	select MEMORY if USE_OF
>  	select ATMEL_SDRAMC if USE_OF
> +	select ATMEL_EBI
>  
>  config SOC_SAMA5
>  	bool
> @@ -58,6 +59,7 @@ config SOC_SAMA5
>  	select USE_OF
>  	select MEMORY
>  	select ATMEL_SDRAMC
> +	select ATMEL_EBI
>  
>  menu "Atmel AT91 System-on-Chip"
>  
> 


-- 
Nicolas Ferre
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