linux-kernel - Re: [PATCH 1/3] mtd: brcmnand: Add brcm,bcm6368-nand device tree binding

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Date:	Fri, 4 Dec 2015 09:06:27 -0600
From:	Rob Herring <robh@...nel.org>
To:	Simon Arlott <simon@...e.lp0.eu>
Cc:	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Brian Norris <computersforpeace@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	David Woodhouse <dwmw2@...radead.org>,
	linux-mtd@...ts.infradead.org, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Florian Fainelli <f.fainelli@...il.com>,
	bcm-kernel-feedback-list@...adcom.com,
	Kamal Dasu <kdasu.kdev@...il.com>
Subject: Re: [PATCH 1/3] mtd: brcmnand: Add brcm,bcm6368-nand device tree
 binding

On Wed, Dec 02, 2015 at 11:41:26PM +0000, Simon Arlott wrote:
> Add device tree binding for NAND on the BCM6368.
> 
> The BCM6368 has a NAND interrupt register with combined status and enable
> registers. It also requires a clock, so add an optional clock to the
> common brcmnand binding.
> 
> Signed-off-by: Simon Arlott <simon@...e.lp0.eu>

Acked-by: Rob Herring <robh@...nel.org>

> ---
> Renamed from BCM63268, made clock a generic property.
> 
>  .../devicetree/bindings/mtd/brcm,brcmnand.txt      | 32 ++++++++++++++++++++++
>  1 file changed, 32 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt
> index 4ff7128..16d7835 100644
> --- a/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt
> +++ b/Documentation/devicetree/bindings/mtd/brcm,brcmnand.txt
> @@ -45,6 +45,8 @@ Required properties:
>  - #size-cells      : <0>
>  
>  Optional properties:
> +- clock                     : reference to the clock for the NAND controller
> +- clock-names               : "nand" (required for the above clock)
>  - brcm,nand-has-wp          : Some versions of this IP include a write-protect
>                                (WP) control bit. It is always available on >=
>                                v7.0. Use this property to describe the rare
> @@ -72,6 +74,12 @@ we define additional 'compatible' properties and associated register resources w
>         and enable registers
>       - reg-names: (required) "nand-int-base"
>  
> +   * "brcm,nand-bcm6368"
> +     - compatible: should contain "brcm,nand-bcm<soc>", "brcm,nand-bcm6368"
> +     - reg: (required) the 'NAND_INTR_BASE' register range, with combined status
> +       and enable registers, and boot address registers
> +     - reg-names: (required) "nand-intr-base"
> +
>     * "brcm,nand-iproc"
>       - reg: (required) the "IDM" register range, for interrupt enable and APB
>         bus access endianness configuration, and the "EXT" register range,
> @@ -148,3 +156,27 @@ nand@...42800 {
>  		};
>  	};
>  };
> +
> +nand@...00200 {
> +	compatible = "brcm,nand-bcm63168", "brcm,nand-bcm6368",
> +		"brcm,brcmnand-v4.0", "brcm,brcmnand";
> +	reg = <0x10000200 0x180>,
> +	      <0x10000600 0x200>,
> +	      <0x100000b0 0x10>;
> +	reg-names = "nand", "nand-cache", "nand-intr-base";
> +	interrupt-parent = <&periph_intc>;
> +	interrupts = <50>;
> +	clocks = <&periph_clk 20>;
> +	clock-names = "nand";
> +
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +
> +	nand0: nandcs@0 {
> +		compatible = "brcm,nandcs";
> +		reg = <0>;
> +		nand-on-flash-bbt;
> +		nand-ecc-strength = <1>;
> +		nand-ecc-step-size = <512>;
> +	};
> +};
> -- 
> 2.1.4
> 
> -- 
> Simon Arlott
--
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