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

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Message-ID: <565F81A6.6060307@simon.arlott.org.uk>
Date:	Wed, 2 Dec 2015 23:41:26 +0000
From:	Simon Arlott <simon@...e.lp0.eu>
To:	"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
Cc:	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>,
	Florian Fainelli <f.fainelli@...il.com>,
	bcm-kernel-feedback-list@...adcom.com,
	Kamal Dasu <kdasu.kdev@...il.com>
Subject: [PATCH 1/3] mtd: brcmnand: Add brcm,bcm6368-nand device tree binding

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>
---
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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