From: Vikas Manocha <vikas.manocha@st.com>
Date: Fri, 3 Jul 2015 01:29:42 +0000 (-0700)
Subject: stv0991: configure device tree for cadence qspi & flash
X-Git-Tag: v2015.10-rc1~191^2~4
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=51d558392bc71f9cfb58ce5ea70975dee6bf6292;p=platform%2Fkernel%2Fu-boot.git

stv0991: configure device tree for cadence qspi & flash

This patch add the device tree entry for qspi controller & spi flash
memory.

Signed-off-by: Vikas Manocha <vikas.manocha@st.com>
Reviewed-by: Jagannadh Teki <jteki@openedev.com>
---

diff --git a/arch/arm/dts/stv0991.dts b/arch/arm/dts/stv0991.dts
index b25c48b..3b1efca 100644
--- a/arch/arm/dts/stv0991.dts
+++ b/arch/arm/dts/stv0991.dts
@@ -20,4 +20,38 @@
 		reg = <0x80406000 0x1000>;
 		clock = <2700000>;
 	};
+
+	aliases {
+		spi0 = "/spi@80203000";		/* QSPI */
+	};
+
+	qspi: spi@80203000 {
+			compatible = "cadence,qspi";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			reg = <0x80203000 0x100>,
+				<0x40000000 0x1000000>;
+			clocks = <3750000>;
+			ext-decoder = <0>; /* external decoder */
+			num-cs = <4>;
+			fifo-depth = <256>;
+			bus-num = <0>;
+			status = "okay";
+
+			flash0: n25q32@0 {
+				#address-cells = <1>;
+				#size-cells = <1>;
+				compatible = "spi-flash";
+				reg = <0>;		/* chip select */
+				spi-max-frequency = <50000000>;
+				m25p,fast-read;
+				page-size = <256>;
+				block-size = <16>; 	/* 2^16, 64KB */
+				read-delay = <4>;	/* delay value in read data capture register */
+				tshsl-ns = <50>;
+				tsd2d-ns = <50>;
+				tchsh-ns = <4>;
+				tslch-ns = <4>;
+			};
+	};
 };