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
foxg20_init_early(void)60 static void __init foxg20_init_early(void)
61 {
62 /* Initialize processor: 18.432 MHz crystal */
63 at91_initialize(18432000);
64
65 /* DBGU on ttyS0. (Rx & Tx only) */
66 at91_register_uart(0, 0, 0);
67
68 /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
69 at91_register_uart(AT91SAM9260_ID_US0, 1,
70 ATMEL_UART_CTS
71 | ATMEL_UART_RTS
72 | ATMEL_UART_DTR
73 | ATMEL_UART_DSR
74 | ATMEL_UART_DCD
75 | ATMEL_UART_RI);
76
77 /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
78 at91_register_uart(AT91SAM9260_ID_US1, 2,
79 ATMEL_UART_CTS
80 | ATMEL_UART_RTS);
81
82 /* USART2 on ttyS3. (Rx & Tx only) */
83 at91_register_uart(AT91SAM9260_ID_US2, 3, 0);
84
85 /* USART3 on ttyS4. (Rx, Tx, RTS, CTS) */
86 at91_register_uart(AT91SAM9260_ID_US3, 4,
87 ATMEL_UART_CTS
88 | ATMEL_UART_RTS);
89
90 /* USART4 on ttyS5. (Rx & Tx only) */
91 at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
92
93 /* USART5 on ttyS6. (Rx & Tx only) */
94 at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
95
96 /* set serial console to ttyS0 (ie, DBGU) */
97 at91_set_serial_console(0);
98
99 /* Set the internal pull-up resistor on DRXD */
100 at91_set_A_periph(AT91_PIN_PB14, 1);
101
102 }
103
104 /*
105 * USB Host port
106 */
107 static struct at91_usbh_data __initdata foxg20_usbh_data = {
108 .ports = 2,
109 .vbus_pin = {-EINVAL, -EINVAL},
110 .overcurrent_pin= {-EINVAL, -EINVAL},
111 };
112
113 /*
114 * USB Device port
115 */
116 static struct at91_udc_data __initdata foxg20_udc_data = {
117 .vbus_pin = AT91_PIN_PC6,
118 .pullup_pin = -EINVAL, /* pull-up driven by UDC */
119 };
120
121
122 /*
123 * SPI devices.
124 */
125 static struct spi_board_info foxg20_spi_devices[] = {
126 #if !defined(CONFIG_MMC_AT91)
127 {
128 .modalias = "mtd_dataflash",
129 .chip_select = 1,
130 .max_speed_hz = 15 * 1000 * 1000,
131 .bus_num = 0,
132 },
133 #endif
134 };
135
136
137 /*
138 * MACB Ethernet device
139 */
140 static struct macb_platform_data __initdata foxg20_macb_data = {
141 .phy_irq_pin = AT91_PIN_PA7,
142 .is_rmii = 1,
143 };
144
145 /*
146 * MCI (SD/MMC)
147 * det_pin, wp_pin and vcc_pin are not connected
148 */
149 static struct at91_mmc_data __initdata foxg20_mmc_data = {
150 .slot_b = 1,
151 .wire4 = 1,
152 .det_pin = -EINVAL,
153 .wp_pin = -EINVAL,
154 .vcc_pin = -EINVAL,
155 };
156
157
158 /*
159 * LEDs
160 */
161 static struct gpio_led foxg20_leds[] = {
162 { /* user led, red */
163 .name = "user_led",
164 .gpio = AT91_PIN_PC7,
165 .active_low = 0,
166 .default_trigger = "heartbeat",
167 },
168 };
169
170
171 /*
172 * GPIO Buttons
173 */
174 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
175 static struct gpio_keys_button foxg20_buttons[] = {
176 {
177 .gpio = AT91_PIN_PC4,
178 .code = BTN_1,
179 .desc = "Button 1",
180 .active_low = 1,
181 .wakeup = 1,
182 },
183 };
184
185 static struct gpio_keys_platform_data foxg20_button_data = {
186 .buttons = foxg20_buttons,
187 .nbuttons = ARRAY_SIZE(foxg20_buttons),
188 };
189
190 static struct platform_device foxg20_button_device = {
191 .name = "gpio-keys",
192 .id = -1,
193 .num_resources = 0,
194 .dev = {
195 .platform_data = &foxg20_button_data,
196 }
197 };
198
foxg20_add_device_buttons(void)199 static void __init foxg20_add_device_buttons(void)
200 {
201 at91_set_gpio_input(AT91_PIN_PC4, 1); /* btn1 */
202 at91_set_deglitch(AT91_PIN_PC4, 1);
203
204 platform_device_register(&foxg20_button_device);
205 }
206 #else
foxg20_add_device_buttons(void)207 static void __init foxg20_add_device_buttons(void) {}
208 #endif
209
210
211 #if defined(CONFIG_W1_MASTER_GPIO) || defined(CONFIG_W1_MASTER_GPIO_MODULE)
212 static struct w1_gpio_platform_data w1_gpio_pdata = {
213 /* If you choose to use a pin other than PB16 it needs to be 3.3V */
214 .pin = AT91_PIN_PB16,
215 .is_open_drain = 1,
216 };
217
218 static struct platform_device w1_device = {
219 .name = "w1-gpio",
220 .id = -1,
221 .dev.platform_data = &w1_gpio_pdata,
222 };
223
at91_add_device_w1(void)224 static void __init at91_add_device_w1(void)
225 {
226 at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
227 at91_set_multi_drive(w1_gpio_pdata.pin, 1);
228 platform_device_register(&w1_device);
229 }
230
231 #endif
232
233
234 static struct i2c_board_info __initdata foxg20_i2c_devices[] = {
235 {
236 I2C_BOARD_INFO("24c512", 0x50),
237 },
238 };
239
240
foxg20_board_init(void)241 static void __init foxg20_board_init(void)
242 {
243 /* Serial */
244 at91_add_device_serial();
245 /* USB Host */
246 at91_add_device_usbh(&foxg20_usbh_data);
247 /* USB Device */
248 at91_add_device_udc(&foxg20_udc_data);
249 /* SPI */
250 at91_add_device_spi(foxg20_spi_devices, ARRAY_SIZE(foxg20_spi_devices));
251 /* Ethernet */
252 at91_add_device_eth(&foxg20_macb_data);
253 /* MMC */
254 at91_add_device_mmc(0, &foxg20_mmc_data);
255 /* I2C */
256 at91_add_device_i2c(foxg20_i2c_devices, ARRAY_SIZE(foxg20_i2c_devices));
257 /* LEDs */
258 at91_gpio_leds(foxg20_leds, ARRAY_SIZE(foxg20_leds));
259 /* Push Buttons */
260 foxg20_add_device_buttons();
261 #if defined(CONFIG_W1_MASTER_GPIO) || defined(CONFIG_W1_MASTER_GPIO_MODULE)
262 at91_add_device_w1();
263 #endif
264 }
265
266 MACHINE_START(ACMENETUSFOXG20, "Acme Systems srl FOX Board G20")
267 /* Maintainer: Sergio Tanzilli */
268 .timer = &at91sam926x_timer,
269 .map_io = at91_map_io,
270 .init_early = foxg20_init_early,
271 .init_irq = at91_init_irq_default,
272 .init_machine = foxg20_board_init,
273 MACHINE_END
274