From: Sourav Poddar <sourav.poddar@ti.com>
Date: Tue, 6 May 2014 11:07:24 +0000 (+0530)
Subject: ARM: dts: dra7: Add qspi device
X-Git-Tag: firefly_0821_release~176^2~3806^2~44
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=dc2dd5b8cb03ee3c4754af2442c9426e9948654a;p=firefly-linux-kernel-4.4.55.git

ARM: dts: dra7: Add qspi device

These add device tree entry for qspi controller driver on dra7-evm.

Signed-off-by: Sourav Poddar <sourav.poddar@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
---

diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts
index 39b718adfbec..5f1f6da17dad 100644
--- a/arch/arm/boot/dts/dra7-evm.dts
+++ b/arch/arm/boot/dts/dra7-evm.dts
@@ -93,6 +93,21 @@
 			0x24c (PIN_INPUT_SLEW | MUX_MODE0) /* uart3_txd */
 		>;
 	};
+
+	qspi1_pins: pinmux_qspi1_pins {
+		pinctrl-single,pins = <
+			0x4c (PIN_INPUT | MUX_MODE1)  /* gpmc_a3.qspi1_cs2 */
+			0x50 (PIN_INPUT | MUX_MODE1)  /* gpmc_a4.qspi1_cs3 */
+			0x74 (PIN_INPUT | MUX_MODE1)  /* gpmc_a13.qspi1_rtclk */
+			0x78 (PIN_INPUT | MUX_MODE1)  /* gpmc_a14.qspi1_d3 */
+			0x7c (PIN_INPUT | MUX_MODE1)  /* gpmc_a15.qspi1_d2 */
+			0x80 (PIN_INPUT | MUX_MODE1) /* gpmc_a16.qspi1_d1 */
+			0x84 (PIN_INPUT | MUX_MODE1)  /* gpmc_a17.qspi1_d0 */
+			0x88 (PIN_INPUT | MUX_MODE1)  /* qpmc_a18.qspi1_sclk */
+			0xb8 (PIN_INPUT_PULLUP | MUX_MODE1)  /* gpmc_cs2.qspi1_cs0 */
+			0xbc (PIN_INPUT_PULLUP | MUX_MODE1)  /* gpmc_cs3.qspi1_cs1 */
+		>;
+	};
 };
 
 &i2c1 {
@@ -273,3 +288,68 @@
 &cpu0 {
 	cpu0-supply = <&smps123_reg>;
 };
+
+&qspi {
+	status = "okay";
+	pinctrl-names = "default";
+	pinctrl-0 = <&qspi1_pins>;
+
+	spi-max-frequency = <48000000>;
+	m25p80@0 {
+		compatible = "s25fl256s1";
+		spi-max-frequency = <48000000>;
+		reg = <0>;
+		spi-tx-bus-width = <1>;
+		spi-rx-bus-width = <4>;
+		spi-cpol;
+		spi-cpha;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		/* MTD partition table.
+		 * The ROM checks the first four physical blocks
+		 * for a valid file to boot and the flash here is
+		 * 64KiB block size.
+		 */
+		partition@0 {
+			label = "QSPI.SPL";
+			reg = <0x00000000 0x000010000>;
+		};
+		partition@1 {
+			label = "QSPI.SPL.backup1";
+			reg = <0x00010000 0x00010000>;
+		};
+		partition@2 {
+			label = "QSPI.SPL.backup2";
+			reg = <0x00020000 0x00010000>;
+		};
+		partition@3 {
+			label = "QSPI.SPL.backup3";
+			reg = <0x00030000 0x00010000>;
+		};
+		partition@4 {
+			label = "QSPI.u-boot";
+			reg = <0x00040000 0x00100000>;
+		};
+		partition@5 {
+			label = "QSPI.u-boot-spl-os";
+			reg = <0x00140000 0x00010000>;
+		};
+		partition@6 {
+			label = "QSPI.u-boot-env";
+			reg = <0x00150000 0x00010000>;
+		};
+		partition@7 {
+			label = "QSPI.u-boot-env.backup1";
+			reg = <0x00160000 0x0010000>;
+		};
+		partition@8 {
+			label = "QSPI.kernel";
+			reg = <0x00170000 0x0800000>;
+		};
+		partition@9 {
+			label = "QSPI.file-system";
+			reg = <0x00970000 0x01690000>;
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
index a4f9f3927497..37a0595f47ed 100644
--- a/arch/arm/boot/dts/dra7.dtsi
+++ b/arch/arm/boot/dts/dra7.dtsi
@@ -762,6 +762,20 @@
 			dma-names = "tx0", "rx0";
 			status = "disabled";
 		};
+
+		qspi: qspi@4b300000 {
+			compatible = "ti,dra7xxx-qspi";
+			reg = <0x4b300000 0x100>;
+			reg-names = "qspi_base";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			ti,hwmods = "qspi";
+			clocks = <&qspi_gfclk_div>;
+			clock-names = "fck";
+			num-cs = <4>;
+			interrupts = <0 343 0x4>;
+			status = "disabled";
+		};
 	};
 };