linux-kernel - [PATCH 3/8] ARM: sti: Add BCH (NAND Flash) Controller support for STiH41x (Orly) SoCs

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Message-Id: <1407921127-8590-4-git-send-email-lee.jones@linaro.org>
Date:	Wed, 13 Aug 2014 10:12:02 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Cc:	lee.jones@...aro.org, kernel@...inux.com,
	computersforpeace@...il.com, pekon@...-sem.com,
	linux-mtd@...ts.infradead.org
Subject: [PATCH 3/8] ARM: sti: Add BCH (NAND Flash) Controller support for STiH41x (Orly) SoCs

Provide device information and flash layout for the NAND Micron
MT29F8G08ABABAWP chip found on the STM B2020 Development Board.

Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 arch/arm/boot/dts/stih41x-b2020.dtsi | 38 ++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)

diff --git a/arch/arm/boot/dts/stih41x-b2020.dtsi b/arch/arm/boot/dts/stih41x-b2020.dtsi
index d8a8429..553ee1f 100644
--- a/arch/arm/boot/dts/stih41x-b2020.dtsi
+++ b/arch/arm/boot/dts/stih41x-b2020.dtsi
@@ -74,5 +74,43 @@
 
 			pinctrl-0	= <&pinctrl_rgmii1>;
 		};
+
+		nand@...01000 {
+			compatible = "st,nand-bch";
+			reg = <0xfe901000 0x1000>, <0xfef00000 0x107c>;
+			reg-names = "emi_nand", "emiss";
+			interrupts = <0 139 0x0>;
+			interrupt-names = "nand_irq";
+			status = "disabled";
+
+			/*
+			 * Micron MT29F8G08ABABAWP:
+			 *  - Size = 8Gib(1GiB); Page = 4096+224; Block = 512KiB
+			 *  - ECC = 4-bit/540B min
+			 *  - ONFI 2.1 (timing parameters retrieved during probe)
+			 */
+			bank0 {
+				nand-on-flash-bbt;
+				st,nand-csn		= <0>;
+				st,nand-timing-relax	= <0>;
+
+				partitions {
+					#address-cells	= <1>;
+					#size-cells	= <1>;
+
+					partition@0 {
+						/* 8MB */
+						label = "NANDFlash1";
+						reg = <0x00000000 0x00800000>;
+					};
+
+					partition@...000 {
+						/* 1GB - 8MB */
+						label = "NANDFlash2";
+						reg = <0x00800000 0x1f000000>;
+					};
+				};
+			};
+		};
 	};
 };
-- 
1.9.1

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