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authorDmitry Lifshitz <lifshitz@compulab.co.il>2014-12-28 16:30:49 +0200
committerTony Lindgren <tony@atomide.com>2015-01-13 08:00:10 -0800
commitdf73b7f84227fa821699477c7234c1abc39fc512 (patch)
tree1a9ca5d7675cc4978249b7bf5f59e8609e7f5341 /arch/arm/boot/dts/omap3-cm-t3x.dtsi
parent7a03f2c08d62371a6459331036e214bd7288ed10 (diff)
downloadlinux-df73b7f84227fa821699477c7234c1abc39fc512.tar.gz
ARM: dts: cm-t3x: add NAND support
CM-T3517, CM-T3530 and CM-T3730 features NAND storage chip connected to
GPMC bus.

Add GPMC DT entry into the root DT file omap3-cm-t3x.dtsi, common for
all three modules.

NAND timings are calculated to be safe for CM-T3x devices as it works
now in non DT boot (in this case the timings are updated by U-Boot).

Update GPMC ranges in boards DT files to include all connected devices.

Signed-off-by: Dmitry Lifshitz <lifshitz@compulab.co.il>
Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Acked-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot/dts/omap3-cm-t3x.dtsi')
-rw-r--r--arch/arm/boot/dts/omap3-cm-t3x.dtsi58
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/omap3-cm-t3x.dtsi b/arch/arm/boot/dts/omap3-cm-t3x.dtsi
index 6ea6d460db30..4d091ca43e25 100644
--- a/arch/arm/boot/dts/omap3-cm-t3x.dtsi
+++ b/arch/arm/boot/dts/omap3-cm-t3x.dtsi
@@ -259,3 +259,61 @@
 	pinctrl-names = "default";
 	pinctrl-0 = <&mcbsp2_pins>;
 };
+
+&gpmc {
+	ranges = <0 0 0x00000000 0x01000000>;
+
+	nand@0,0 {
+		reg = <0 0 4>;	/* CS0, offset 0, IO size 4 */
+		nand-bus-width = <8>;
+		gpmc,device-width = <1>;
+		ti,nand-ecc-opt = "sw";
+
+		gpmc,cs-on-ns = <0>;
+		gpmc,cs-rd-off-ns = <120>;
+		gpmc,cs-wr-off-ns = <120>;
+
+		gpmc,adv-on-ns = <0>;
+		gpmc,adv-rd-off-ns = <120>;
+		gpmc,adv-wr-off-ns = <120>;
+
+		gpmc,we-on-ns = <6>;
+		gpmc,we-off-ns = <90>;
+
+		gpmc,oe-on-ns = <6>;
+		gpmc,oe-off-ns = <90>;
+
+		gpmc,page-burst-access-ns = <6>;
+		gpmc,access-ns = <72>;
+		gpmc,cycle2cycle-delay-ns = <60>;
+
+		gpmc,rd-cycle-ns = <120>;
+		gpmc,wr-cycle-ns = <120>;
+		gpmc,wr-access-ns = <186>;
+		gpmc,wr-data-mux-bus-ns = <90>;
+
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		partition@0 {
+			label = "xloader";
+			reg = <0 0x80000>;
+		};
+		partition@0x80000 {
+			label = "uboot";
+			reg = <0x80000 0x1e0000>;
+		};
+		partition@0x260000 {
+			label = "uboot environment";
+			reg = <0x260000 0x40000>;
+		};
+		partition@0x2a0000 {
+			label = "linux";
+			reg = <0x2a0000 0x400000>;
+		};
+		partition@0x6a0000 {
+			label = "rootfs";
+			reg = <0x6a0000 0x1f880000>;
+		};
+	};
+};