1/*
  2 * Device Tree for the ST-Ericsson Nomadik S8815 board
  3 * Produced by Calao Systems
  4 */
  5
  6/dts-v1/;
  7#include <dt-bindings/interrupt-controller/irq.h>
  8#include "ste-nomadik-stn8815.dtsi"
  9
 10/ {
 11	model = "Calao Systems USB-S8815";
 12	compatible = "calaosystems,usb-s8815";
 13
 14	chosen {
 15		bootargs = "root=/dev/ram0 console=ttyAMA1,115200n8 earlyprintk";
 16	};
 17
 18	aliases {
 19		serial0 = &uart0;
 20		serial1 = &uart1;
 21	};
 22
 23	gpio3: gpio@101e7000 {
 24		/* This hog will bias the MMC/SD card detect line */
 25		mmcsd-gpio {
 26			gpio-hog;
 27			gpios = <16 0x0>;
 28			output-low;
 29			line-name = "card detect bias";
 30		};
 31	};
 32
 33	src@101e0000 {
 34		/* These chrystal drivers are not used on this board */
 35		disable-sxtalo;
 36		disable-mxtalo;
 37	};
 38
 39	pinctrl {
 40		/* Hog CD pins */
 41		pinctrl-names = "default";
 42		pinctrl-0 = <&cd_default_mode>;
 43
 44		uart0 {
 45			/* Only use RX/TX pins */
 46			uart0_s8815_mode: uart0_mux {
 47				u0_default_mux {
 48					function = "u0";
 49					groups = "u0txrx_a_1";
 50				};
 51			};
 52		};
 53		mmcsd-cd {
 54			cd_default_mode: cd_default {
 55				cd_default_cfg1 {
 56					/* CD input GPIO */
 57					pins = "GPIO111_H21";
 58					ste,input = <0>;
 59				};
 60				cd_default_cfg2 {
 61					/* CD GPIO biasing */
 62					pins = "GPIO112_J21";
 63					ste,output = <0>;
 64				};
 65			};
 66		};
 67		gpioi2c {
 68			gpioi2c_default_mode: gpioi2c_default {
 69				gpioi2c_default_cfg {
 70					pins = "GPIO73_C21", "GPIO74_C20";
 71					ste,input = <0>;
 72				};
 73			};
 74		};
 75		user-led {
 76			user_led_default_mode: user_led_default {
 77				user_led_default_cfg {
 78					pins = "GPIO2_C5";
 79					ste,output = <1>;
 80				};
 81			};
 82		};
 83		user-button {
 84			user_button_default_mode: user_button_default {
 85				user_button_default_cfg {
 86					pins = "GPIO3_A4";
 87					ste,input = <0>;
 88				};
 89			};
 90		};
 91	};
 92
 93	/* Ethernet */
 94	external-bus@34000000 {
 95		compatible = "simple-bus";
 96		reg = <0x34000000 0x1000000>;
 97		#address-cells = <1>;
 98		#size-cells = <1>;
 99		ranges = <0 0x34000000 0x1000000>;
100		ethernet@300 {
101			compatible = "smsc,lan91c111";
102			reg = <0x300 0x0fd00>;
103			interrupt-parent = <&gpio3>;
104			interrupts = <8 IRQ_TYPE_EDGE_RISING>;
105		};
106	};
107
108	i2c1 {
109		lis3lv02dl@1d {
110			/* Accelerometer */
111			compatible = "st,lis3lv02dl-accel";
112			reg = <0x1d>;
113		};
114	};
115
116	/* GPIO I2C connected to the USB portions of the STw4811 only */
117	gpio-i2c {
118		compatible = "i2c-gpio";
119		gpios = <&gpio2 10 0>, /* sda */
120			<&gpio2 9 0>; /* scl */
121		#address-cells = <1>;
122		#size-cells = <0>;
123		pinctrl-names = "default";
124		pinctrl-0 = <&gpioi2c_default_mode>;
125
126		stw4811@2d {
127			   compatible = "st,stw4811-usb";
128			   reg = <0x2d>;
129		};
130	};
131
132
133	amba {
134		/* Activate RXTX on UART 0 */
135		uart0: uart@101fd000 {
136			pinctrl-names = "default";
137			pinctrl-0 = <&uart0_s8815_mode>;
138			status = "okay";
139		};
140		/* Configure card detect for the uSD slot */
141		mmcsd: sdi@101f6000 {
142			cd-gpios = <&gpio3 15 GPIO_ACTIVE_LOW>;
143		};
144	};
145
146	/* The user LED on the board is set up to be used for heartbeat */
147	leds {
148		compatible = "gpio-leds";
149		user-led {
150			label = "user_led";
151			gpios = <&gpio0 2 0x1>;
152			default-state = "off";
153			linux,default-trigger = "heartbeat";
154			pinctrl-names = "default";
155			pinctrl-0 = <&user_led_default_mode>;
156		};
157	};
158
159	/* User key mapped in as "escape" */
160	gpio-keys {
161		compatible = "gpio-keys";
162		user-button {
163			label = "user_button";
164			gpios = <&gpio0 3 0x1>;
165			linux,code = <1>; /* KEY_ESC */
166			wakeup-source;
167			pinctrl-names = "default";
168			pinctrl-0 = <&user_button_default_mode>;
169		};
170	};
171};