1/*
  2 *  Copyright (C) 2005 SAN People
  3 *  Copyright (C) 2008 Atmel
  4 *  Copyright (C) 2010 Lee McLoughlin - lee@lmmrtech.com
  5 *  Copyright (C) 2010 Sergio Tanzilli - tanzilli@acmesystems.it
  6 *
  7 * This program is free software; you can redistribute it and/or modify
  8 * it under the terms of the GNU General Public License as published by
  9 * the Free Software Foundation; either version 2 of the License, or
 10 * (at your option) any later version.
 11 *
 12 * This program is distributed in the hope that it will be useful,
 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 15 * GNU General Public License for more details.
 16 *
 17 * You should have received a copy of the GNU General Public License
 18 * along with this program; if not, write to the Free Software
 19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 20 */
 21
 22#include <linux/types.h>
 23#include <linux/init.h>
 24#include <linux/mm.h>
 25#include <linux/module.h>
 26#include <linux/platform_device.h>
 27#include <linux/spi/spi.h>
 28#include <linux/spi/at73c213.h>
 29#include <linux/gpio.h>
 30#include <linux/gpio_keys.h>
 31#include <linux/input.h>
 32#include <linux/clk.h>
 33#include <linux/w1-gpio.h>
 34
 35#include <mach/hardware.h>
 36#include <asm/setup.h>
 37#include <asm/mach-types.h>
 38#include <asm/irq.h>
 39
 40#include <asm/mach/arch.h>
 41#include <asm/mach/map.h>
 42#include <asm/mach/irq.h>
 43
 44#include <mach/board.h>
 45#include <mach/at91sam9_smc.h>
 46
 47#include "sam9_smc.h"
 48#include "generic.h"
 49
 50/*
 51 * The FOX Board G20 hardware comes as the "Netus G20" board with
 52 * just the cpu, ram, dataflash and two header connectors.
 53 * This is plugged into the FOX Board which provides the ethernet,
 54 * usb, rtc, leds, switch, ...
 55 *
 56 * For more info visit: http://www.acmesystems.it/foxg20
 57 */
 58
 59
 60static void __init foxg20_init_early(void)
 61{
 62	/* Initialize processor: 18.432 MHz crystal */
 63	at91_initialize(18432000);
 64}
 65
 66/*
 67 * USB Host port
 68 */
 69static struct at91_usbh_data __initdata foxg20_usbh_data = {
 70	.ports		= 2,
 71	.vbus_pin	= {-EINVAL, -EINVAL},
 72	.overcurrent_pin= {-EINVAL, -EINVAL},
 73};
 74
 75/*
 76 * USB Device port
 77 */
 78static struct at91_udc_data __initdata foxg20_udc_data = {
 79	.vbus_pin	= AT91_PIN_PC6,
 80	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
 81};
 82
 83
 84/*
 85 * SPI devices.
 86 */
 87static struct spi_board_info foxg20_spi_devices[] = {
 88#if !defined(CONFIG_MMC_AT91)
 89	{
 90		.modalias	= "mtd_dataflash",
 91		.chip_select	= 1,
 92		.max_speed_hz	= 15 * 1000 * 1000,
 93		.bus_num	= 0,
 94	},
 95#endif
 96};
 97
 98
 99/*
100 * MACB Ethernet device
101 */
102static struct macb_platform_data __initdata foxg20_macb_data = {
103	.phy_irq_pin	= AT91_PIN_PA7,
104	.is_rmii	= 1,
105};
106
107/*
108 * MCI (SD/MMC)
109 * det_pin, wp_pin and vcc_pin are not connected
110 */
111static struct at91_mmc_data __initdata foxg20_mmc_data = {
112	.slot_b		= 1,
113	.wire4		= 1,
114	.det_pin	= -EINVAL,
115	.wp_pin		= -EINVAL,
116	.vcc_pin	= -EINVAL,
117};
118
119
120/*
121 * LEDs
122 */
123static struct gpio_led foxg20_leds[] = {
124	{	/* user led, red */
125		.name			= "user_led",
126		.gpio			= AT91_PIN_PC7,
127		.active_low		= 0,
128		.default_trigger	= "heartbeat",
129	},
130};
131
132
133/*
134 * GPIO Buttons
135 */
136#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
137static struct gpio_keys_button foxg20_buttons[] = {
138	{
139		.gpio		= AT91_PIN_PC4,
140		.code		= BTN_1,
141		.desc		= "Button 1",
142		.active_low	= 1,
143		.wakeup		= 1,
144	},
145};
146
147static struct gpio_keys_platform_data foxg20_button_data = {
148	.buttons	= foxg20_buttons,
149	.nbuttons	= ARRAY_SIZE(foxg20_buttons),
150};
151
152static struct platform_device foxg20_button_device = {
153	.name		= "gpio-keys",
154	.id		= -1,
155	.num_resources	= 0,
156	.dev		= {
157		.platform_data	= &foxg20_button_data,
158	}
159};
160
161static void __init foxg20_add_device_buttons(void)
162{
163	at91_set_gpio_input(AT91_PIN_PC4, 1);	/* btn1 */
164	at91_set_deglitch(AT91_PIN_PC4, 1);
165
166	platform_device_register(&foxg20_button_device);
167}
168#else
169static void __init foxg20_add_device_buttons(void) {}
170#endif
171
172
173#if defined(CONFIG_W1_MASTER_GPIO) || defined(CONFIG_W1_MASTER_GPIO_MODULE)
174static struct w1_gpio_platform_data w1_gpio_pdata = {
175	/* If you choose to use a pin other than PB16 it needs to be 3.3V */
176	.pin		= AT91_PIN_PB16,
177	.is_open_drain  = 1,
178};
179
180static struct platform_device w1_device = {
181	.name			= "w1-gpio",
182	.id			= -1,
183	.dev.platform_data	= &w1_gpio_pdata,
184};
185
186static void __init at91_add_device_w1(void)
187{
188	at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
189	at91_set_multi_drive(w1_gpio_pdata.pin, 1);
190	platform_device_register(&w1_device);
191}
192
193#endif
194
195
196static struct i2c_board_info __initdata foxg20_i2c_devices[] = {
197	{
198		I2C_BOARD_INFO("24c512", 0x50),
199	},
200};
201
202
203static void __init foxg20_board_init(void)
204{
205	/* Serial */
206	/* DBGU on ttyS0. (Rx & Tx only) */
207	at91_register_uart(0, 0, 0);
208
209	/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
210	at91_register_uart(AT91SAM9260_ID_US0, 1,
211				ATMEL_UART_CTS
212				| ATMEL_UART_RTS
213				| ATMEL_UART_DTR
214				| ATMEL_UART_DSR
215				| ATMEL_UART_DCD
216				| ATMEL_UART_RI);
217
218	/* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
219	at91_register_uart(AT91SAM9260_ID_US1, 2,
220		ATMEL_UART_CTS
221		| ATMEL_UART_RTS);
222
223	/* USART2 on ttyS3. (Rx & Tx only) */
224	at91_register_uart(AT91SAM9260_ID_US2, 3, 0);
225
226	/* USART3 on ttyS4. (Rx, Tx, RTS, CTS) */
227	at91_register_uart(AT91SAM9260_ID_US3, 4,
228		ATMEL_UART_CTS
229		| ATMEL_UART_RTS);
230
231	/* USART4 on ttyS5. (Rx & Tx only) */
232	at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
233
234	/* USART5 on ttyS6. (Rx & Tx only) */
235	at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
236
237	/* Set the internal pull-up resistor on DRXD */
238	at91_set_A_periph(AT91_PIN_PB14, 1);
239	at91_add_device_serial();
240	/* USB Host */
241	at91_add_device_usbh(&foxg20_usbh_data);
242	/* USB Device */
243	at91_add_device_udc(&foxg20_udc_data);
244	/* SPI */
245	at91_add_device_spi(foxg20_spi_devices, ARRAY_SIZE(foxg20_spi_devices));
246	/* Ethernet */
247	at91_add_device_eth(&foxg20_macb_data);
248	/* MMC */
249	at91_add_device_mmc(0, &foxg20_mmc_data);
250	/* I2C */
251	at91_add_device_i2c(foxg20_i2c_devices, ARRAY_SIZE(foxg20_i2c_devices));
252	/* LEDs */
253	at91_gpio_leds(foxg20_leds, ARRAY_SIZE(foxg20_leds));
254	/* Push Buttons */
255	foxg20_add_device_buttons();
256#if defined(CONFIG_W1_MASTER_GPIO) || defined(CONFIG_W1_MASTER_GPIO_MODULE)
257	at91_add_device_w1();
258#endif
259}
260
261MACHINE_START(ACMENETUSFOXG20, "Acme Systems srl FOX Board G20")
262	/* Maintainer: Sergio Tanzilli */
263	.timer		= &at91sam926x_timer,
264	.map_io		= at91_map_io,
265	.init_early	= foxg20_init_early,
266	.init_irq	= at91_init_irq_default,
267	.init_machine	= foxg20_board_init,
268MACHINE_END