From c8e750473a8b81f38e1ece0a2a99572d36ebda53 Mon Sep 17 00:00:00 2001
From: Vignesh R <vigneshr@ti.com>
Date: Wed, 6 Jul 2016 09:59:05 +0530
Subject: [PATCH] ARM: dts: k2g: add support for Davinci SPI controller

K2G SoC has 4 SPI instances that are compatible with davinci_spi
controller(present on previous generation of Keystone2 devices). Add DT
nodes for the same. K2G EVM has a N25Q128A13 SPI NOR flash connected on
SPI-1. Add DT bindings for the same.

Signed-off-by: Vignesh R <vigneshr@ti.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Jagan Teki <jteki@openedev.com>
---
 arch/arm/dts/k2g-evm.dts | 24 ++++++++++++++++++++
 arch/arm/dts/k2g.dtsi    | 47 ++++++++++++++++++++++++++++++++++++++++
 2 files changed, 71 insertions(+)

diff --git a/arch/arm/dts/k2g-evm.dts b/arch/arm/dts/k2g-evm.dts
index 0ca36ef39a..38ca7ae1b6 100644
--- a/arch/arm/dts/k2g-evm.dts
+++ b/arch/arm/dts/k2g-evm.dts
@@ -31,3 +31,27 @@
 &gbe0 {
 	phy-handle = <&ethphy0>;
 };
+
+&spi1 {
+	status = "okay";
+
+	spi_nor: flash@0 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "spi-flash";
+		spi-max-frequency = <50000000>;
+		m25p,fast-read;
+		reg = <0>;
+
+		partition@0 {
+			label = "u-boot-spl";
+			reg = <0x0 0x80000>;
+			read-only;
+		};
+
+		partition@1 {
+			label = "misc";
+			reg = <0x80000 0xf80000>;
+		};
+	};
+};
diff --git a/arch/arm/dts/k2g.dtsi b/arch/arm/dts/k2g.dtsi
index a3ed444d3c..88b1a8e998 100644
--- a/arch/arm/dts/k2g.dtsi
+++ b/arch/arm/dts/k2g.dtsi
@@ -19,6 +19,10 @@
 
 	aliases {
 		serial0	= &uart0;
+		spi0 = &spi0;
+		spi1 = &spi1;
+		spi2 = &spi2;
+		spi3 = &spi3;
 	};
 
 	memory {
@@ -88,5 +92,48 @@
 			ti,lpsc_module = <1>;
 		};
 
+		spi0: spi@21805400 {
+			compatible = "ti,keystone-spi", "ti,dm6441-spi";
+			reg = <0x21805400 0x200>;
+			num-cs = <4>;
+			ti,davinci-spi-intr-line = <0>;
+			interrupts = <GIC_SPI 64 IRQ_TYPE_EDGE_RISING>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		spi1: spi@21805800 {
+			compatible = "ti,keystone-spi", "ti,dm6441-spi";
+			reg = <0x21805800 0x200>;
+			num-cs = <4>;
+			ti,davinci-spi-intr-line = <0>;
+			interrupts = <GIC_SPI 66 IRQ_TYPE_EDGE_RISING>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		spi2: spi@21805c00 {
+			compatible = "ti,keystone-spi", "ti,dm6441-spi";
+			reg = <0x21805C00 0x200>;
+			num-cs = <4>;
+			ti,davinci-spi-intr-line = <0>;
+			interrupts = <GIC_SPI 68 IRQ_TYPE_EDGE_RISING>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
+
+		spi3: spi@21806000 {
+			compatible = "ti,keystone-spi", "ti,dm6441-spi";
+			reg = <0x21806000 0x200>;
+			num-cs = <4>;
+			ti,davinci-spi-intr-line = <0>;
+			interrupts = <GIC_SPI 70 IRQ_TYPE_EDGE_RISING>;
+			#address-cells = <1>;
+			#size-cells = <0>;
+			status = "disabled";
+		};
 	};
 };
-- 
2.39.5