linux-kernel - [RFC PATCH 9/9] ARM: sunxi/dt: enable NAND on cubietruck board

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Message-Id: <1389194891-26771-1-git-send-email-b.brezillon@overkiz.com>
Date:	Wed,  8 Jan 2014 16:28:11 +0100
From:	Boris BREZILLON <b.brezillon@...rkiz.com>
To:	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Rob Landley <rob@...dley.net>,
	Russell King <linux@....linux.org.uk>,
	David Woodhouse <dwmw2@...radead.org>,
	Grant Likely <grant.likely@...aro.org>
Cc:	devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-mtd@...ts.infradead.org, dev@...ux-sunxi.org,
	Boris BREZILLON <b.brezillon@...rkiz.com>
Subject: [RFC PATCH 9/9] ARM: sunxi/dt: enable NAND on cubietruck board

Enable the NFC and describe the NAND flash connected to this controller.

Signed-off-by: Boris BREZILLON <b.brezillon@...rkiz.com>
---
 arch/arm/boot/dts/sun7i-a20-cubietruck.dts |   33 ++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
index 8a1009d..08ee7d3 100644
--- a/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
+++ b/arch/arm/boot/dts/sun7i-a20-cubietruck.dts
@@ -18,7 +18,40 @@
 	model = "Cubietech Cubietruck";
 	compatible = "cubietech,cubietruck", "allwinner,sun7i-a20";
 
+	chosen {
+		bootargs = "console=ttyS0,115200 earlyprintk root=/dev/ram0 rootfstype=ext2 rw";
+	};
+
 	soc@...00000 {
+		nfc: nand@...03000 {
+			pinctrl-names = "default";
+			pinctrl-0 = <&nand_pins_a &nand_cs0_pins_a &nand_rb0_pins_a>;
+			status = "okay";
+
+			nand@0 {
+				reg = <0>;
+				allwinner,rb = <0>;
+				nand-ecc-mode = "soft_bch";
+
+				/* nand timings */
+				tCLS-min = <6>;
+				tCLH-min = <3>;
+				tCS-min = <20>;
+				tCH-min = <5>;
+				tWP-min = <8>;
+				tWH-min = <6>;
+				tALS-min = <6>;
+				tDS-min = <6>;
+				tDH-min = <2>;
+				tRR-min = <20>;
+				tALH-min = <3>;
+				tRP-min = <8>;
+				tREH-min = <6>;
+				tRC-min = <16>;
+				tWC-min = <16>;
+			};
+		};
+
 		pinctrl@...20800 {
 			led_pins_cubietruck: led_pins@0 {
 				allwinner,pins = "PH7", "PH11", "PH20", "PH21";
-- 
1.7.9.5

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