linux-kernel - Denali NAND driver on SocKit

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Message-ID: <20151130183155.GA26351@amd>
Date:	Mon, 30 Nov 2015 19:31:55 +0100
From:	Pavel Machek <pavel@...x.de>
To:	dinguyen@...nsource.altera.com, wsa@...-dreams.de,
	kernel list <linux-kernel@...r.kernel.org>,
	jg1.han@...sung.com, artem.bityutskiy@...ux.intel.com,
	sachin.kamat@...aro.org, David.Woodhouse@...el.com,
	dinguyen@...era.com, sr@...x.de
Cc:	marex@...x.de
Subject: Denali NAND driver on SocKit

Hi!

I'm trying to get NAND to work on socdk board... but it looks like
neccessary device tree bindings are not there. And when I do add them,
they don't seem to work.

Does it work for you? Is there patch I should apply?

Thanks,
								Pavel


diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index bd2937f..ec61b29 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -582,6 +582,46 @@
 			status = "disabled";
 		};
 
+		nand: nand@...00000 {
+			#address-cells = <1>;
+			#size-cells = <1>;
+			compatible = "denali,denali-nand-dt";
+			reg = <0xff900000 0x100000>, <0xffb80000 0x10000>;
+			reg-names = "nand_data", "denali_reg";
+			interrupts = <0 144 4>;
+			dma-mask = <0xffffffff>;
+			clocks = <&nand_clk>;
+			have-hw-ecc-fixup;
+			status = "disabled";
+
+			partition@...d-boot {
+				/* 8MB for raw data. */
+				label = "NAND Flash Boot Area 8MB";
+				reg = <0x0 0x800000>;
+			};
+			partition@...d-rootfs {
+				/* 128MB jffs2 root filesystem. */
+				label = "NAND Flash jffs2 Root Filesystem 128MB";
+				reg = <0x800000 0x8000000>;
+			};
+			partition@...d-128 {
+				label = "NAND Flash 128 MB";
+				reg = <0x8800000 0x8000000>;
+			};
+			partition@...d-64 {
+				label = "NAND Flash 64 MB";
+				reg = <0x10800000 0x4000000>;
+			};
+			partition@...d-32 {
+				label = "NAND Flash 32 MB";
+				reg = <0x14800000 0x2000000>;
+			};
+			partition@...d-16 {
+				label = "NAND Flash 16 MB";
+				reg = <0x16800000 0x1000000>;
+			};
+		};
+
 		gpio0: gpio@...08000 {
 			#address-cells = <1>;
 			#size-cells = <0>;
diff --git a/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts b/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
index d4d0a28..b56c8f9 100644
--- a/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
+++ b/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
@@ -89,3 +89,7 @@
 &usb1 {
 	status = "okay";
 };
+
+&nand {
+        status = "okay";
+};

-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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