0082-beaglebone-Add-nixie-cape-device-tree-entry.patch

From 44672d4eb47cd81974f8ac453219ca92531853fe Mon Sep 17 00:00:00 2001
From: Matt Ranostay <mranostay@gmail.com>
Date: Tue, 22 Jan 2013 10:09:48 -0800
Subject: [PATCH 082/184] beaglebone: Add nixie cape device tree entry

Added nixie dt overlays, PWM, and leds definitions to am355x-bone-common

Signed-off-by: Matt Ranostay <mranostay@gmail.com>
---
 arch/arm/boot/dts/am335x-bone-common.dtsi |  19 ++++++
 firmware/Makefile                         |   4 ++
 firmware/capes/cape-bone-nixie-00A0.dts   | 107 ++++++++++++++++++++++++++++++
 3 files changed, 130 insertions(+)
 create mode 100644 firmware/capes/cape-bone-nixie-00A0.dts

diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
index bf863bd..c45daa2 100644
--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
+++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
@@ -181,6 +181,17 @@
 				manufacturer = "Texas Instruments";
 				part-number = "BB-BONELT-HDMI";
 			};
+
+			/* Nixie cape version A0 without an EEPROM */
+			slot@7 {
+				ti,cape-override;
+				compatible = "kernel-command-line", "runtime";
+				board-name = "Bone-Nixie";
+				version = "00A0";
+				manufacturer = "Ranostay Industries";
+				part-number = "BB-BONE-NIXIE";
+			};
+
 		};
 
 		/* mapping between board names and dtb objects */
@@ -249,6 +260,14 @@
 				};
 			};
 
+			/* nixie cape */
+			cape@6 {
+				part-number = "BB-BONE-NIXIE";
+				version@00A0 {
+					version = "00A0";
+					dtbo = "cape-bone-nixie-00A0.dtbo";
+				};
+			};
 		};
 	};
 };
diff --git a/firmware/Makefile b/firmware/Makefile
index f8c4a9e..efe2b90 100644
--- a/firmware/Makefile
+++ b/firmware/Makefile
@@ -150,6 +150,10 @@ fw-shipped-$(CONFIG_CAPE_BEAGLEBONE) += \
 fw-shipped-$(CONFIG_CAPE_BEAGLEBONE_GEIGER) += \
 	cape-bone-geiger-00A0.dtbo
 
+# the nixie cape
+fw-shipped-$(CONFIG_CAPE_BEAGLEBONE_NIXIE) += \
+	cape-bone-nixie-00A0.dtbo
+
 # the weather cape
 fw-shipped-$(CONFIG_CAPE_BEAGLEBONE) += cape-bone-weather-00A0.dtbo
 
diff --git a/firmware/capes/cape-bone-nixie-00A0.dts b/firmware/capes/cape-bone-nixie-00A0.dts
new file mode 100644
index 0000000..7ec2c46
--- /dev/null
+++ b/firmware/capes/cape-bone-nixie-00A0.dts
@@ -0,0 +1,107 @@
+/*
+* Copyright (C) 2013 Matt Ranostay <mranostay@gmail.com>
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License version 2 as
+* published by the Free Software Foundation.
+*/
+/dts-v1/;
+/plugin/;
+
+/ {
+	compatible = "ti,beaglebone", "ti,beaglebone-black";
+
+	/* identification */
+	part-number = "BB-BONE-NIXIE";
+	version = "00A0";
+
+	fragment@0 {
+		target = <&am33xx_pinmux>;
+		__overlay__ {
+
+			bone_nixie_cape_led_pins: pinmux_bone_nixie_cape_led_pins {
+				pinctrl-single,pins = <
+					0x1ac 0x07	/* mcasp0_ahclkx.gpio3_21, MODE7 */
+				>;
+			};
+
+			bone_nixie_cape_pins: pinmux_bone_nixie_cape_pins {
+				pinctrl-single,pins = <
+					0x0a0 0x03      /* lcd_data0.gpio2_6 | MODE3 */
+					0x0a4 0x03      /* lcd_data1.gpio2_7 | MODE3 */ 
+				>;
+		        };
+
+			pruss_pins: pinmux_pruss_pins {
+				pinctrl-single,pins = <
+					0x190 0x05	/* mcasp0_aclkx.pr1_pru0_pru_r30_0, MODE5 | DATA */
+					0x194 0x05	/* mcasp0_fsx.pr1_pru0_pru_r30_1, MODE5 | LATCH */
+					0x1a4 0x05	/* mcasp0_fsr.pr1_pru1_pru_r30_5, MODE5 | CLK */
+				>;
+			};
+		};	
+	};
+
+	fragment@2 {
+		target = <&epwmss2>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	fragment@1 {
+		target = <&ehrpwm2>;
+		__overlay__ {
+			status = "okay";
+		};
+	};
+
+	fragment@3 {
+		target = <&ocp>;
+		__overlay__ {
+
+			/* avoid stupid warning */
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			gpio-leds-cape-nixie {
+				compatible = "gpio-leds";
+				pinctrl-names = "default";
+				pinctrl-0 = <&bone_nixie_cape_led_pins>;
+
+				nixie-led0 {
+					label = "nixie:green:usr0";
+					gpios = <&gpio4 21 0>;
+					linux,default-trigger = "nixie-run";
+					default-state = "off";
+				};
+			};
+
+			bone-cape-nixie {
+				compatible = "bone-cape-nixie";
+				status = "okay";
+
+				pinctrl-names = "default";
+				pinctrl-0 = <&bone_nixie_cape_pins>;
+
+				pwms = <&ehrpwm2 0 500000 0>;
+				pwm-names = "bone-nixie-cape";
+
+				pwm-frequency  = <9250>;	/* 9.250KHz */
+				pwm-duty-cycle = <35>;		/* 35% */
+
+				default-brightness = <35>;	/* 35% */
+			};
+		};
+	};
+
+	fragment@4 {
+		target = <&pruss>;
+		__overlay__ {
+			status = "okay";
+
+			pinctrl-names = "default";
+			pinctrl-0 = <&pruss_pins>;
+		};
+	};
+};
-- 
1.8.2.1