linux-kernel - Re: [RFC PATCH v3 16/16] ARM: dts: add AM33XX SPI support

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Date:	Sun, 28 Oct 2012 17:01:29 +0530
From:	Sekhar Nori <nsekhar@...com>
To:	Matt Porter <mporter@...com>
CC:	Tony Lindgren <tony@...mide.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Benoit Cousson <b-cousson@...com>,
	Russell King <linux@....linux.org.uk>,
	Vinod Koul <vinod.koul@...el.com>,
	Rob Landley <rob@...dley.net>, Chris Ball <cjb@...top.org>,
	Devicetree Discuss <devicetree-discuss@...ts.ozlabs.org>,
	Linux OMAP List <linux-omap@...r.kernel.org>,
	Linux ARM Kernel List <linux-arm-kernel@...ts.infradead.org>,
	Linux DaVinci Kernel List 
	<davinci-linux-open-source@...ux.davincidsp.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Linux Documentation List <linux-doc@...r.kernel.org>,
	Linux MMC List <linux-mmc@...r.kernel.org>,
	Linux SPI Devel List 
	<spi-devel-general@...ts.sourceforge.net>,
	Arnd Bergmann <arnd@...db.de>, Dan Williams <djbw@...com>,
	Rob Herring <rob.herring@...xeda.com>
Subject: Re: [RFC PATCH v3 16/16] ARM: dts: add AM33XX SPI support

On 10/18/2012 6:56 PM, Matt Porter wrote:
> Adds AM33XX SPI support for am335x-bone and am335x-evm.
> 
> Signed-off-by: Matt Porter <mporter@...com>
> ---
>  arch/arm/boot/dts/am335x-bone.dts |   17 +++++++++++++++
>  arch/arm/boot/dts/am335x-evm.dts  |    9 ++++++++
>  arch/arm/boot/dts/am33xx.dtsi     |   43 +++++++++++++++++++++++++++++++++++++
>  3 files changed, 69 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/am335x-bone.dts b/arch/arm/boot/dts/am335x-bone.dts
> index 5510979..23edfd8 100644
> --- a/arch/arm/boot/dts/am335x-bone.dts
> +++ b/arch/arm/boot/dts/am335x-bone.dts
> @@ -18,6 +18,17 @@
>  		reg = <0x80000000 0x10000000>; /* 256 MB */
>  	};
>  
> +	am3358_pinmux: pinmux@...10800 {
> +		spi1_pins: pinmux_spi1_pins {
> +			pinctrl-single,pins = <
> +				0x190 0x13	/* mcasp0_aclkx.spi1_sclk, OUTPUT_PULLUP | MODE3 */
> +				0x194 0x33	/* mcasp0_fsx.spi1_d0, INPUT_PULLUP | MODE3 */
> +				0x198 0x13	/* mcasp0_axr0.spi1_d1, OUTPUT_PULLUP | MODE3 */
> +				0x19c 0x13	/* mcasp0_ahclkr.spi1_cs0, OUTPUT_PULLUP | MODE3 */
> +			>;

Is there a single pinmux setting that provides SPI functionality on the
bone headers? Or this is specific to a cape you tested with?

Thanks,
Sekhar
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