1 /*
2 * Copyright (C) 2010 Christian Glindkamp <christian.glindkamp@taskit.de>
3 * taskit GmbH
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; either version 2 of the License, or
8 * (at your option) any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 */
19
20 #include <linux/mm.h>
21 #include <linux/platform_device.h>
22 #include <linux/gpio.h>
23 #include <linux/w1-gpio.h>
24
25 #include <asm/mach-types.h>
26 #include <asm/mach/arch.h>
27
28 #include <mach/board.h>
29 #include <mach/at91sam9_smc.h>
30
31 #include "sam9_smc.h"
32 #include "generic.h"
33
34
stamp9g20_init_early(void)35 void __init stamp9g20_init_early(void)
36 {
37 /* Initialize processor: 18.432 MHz crystal */
38 at91_initialize(18432000);
39
40 /* DGBU on ttyS0. (Rx & Tx only) */
41 at91_register_uart(0, 0, 0);
42
43 /* set serial console to ttyS0 (ie, DBGU) */
44 at91_set_serial_console(0);
45 }
46
stamp9g20evb_init_early(void)47 static void __init stamp9g20evb_init_early(void)
48 {
49 stamp9g20_init_early();
50
51 /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
52 at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
53 | ATMEL_UART_DTR | ATMEL_UART_DSR
54 | ATMEL_UART_DCD | ATMEL_UART_RI);
55 }
56
portuxg20_init_early(void)57 static void __init portuxg20_init_early(void)
58 {
59 stamp9g20_init_early();
60
61 /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
62 at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
63 | ATMEL_UART_DTR | ATMEL_UART_DSR
64 | ATMEL_UART_DCD | ATMEL_UART_RI);
65
66 /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) */
67 at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
68
69 /* USART2 on ttyS3. (Rx, Tx, CTS, RTS) */
70 at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS | ATMEL_UART_RTS);
71
72 /* USART4 on ttyS5. (Rx, Tx only) */
73 at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
74
75 /* USART5 on ttyS6. (Rx, Tx only) */
76 at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
77 }
78
79 /*
80 * NAND flash
81 */
82 static struct atmel_nand_data __initdata nand_data = {
83 .ale = 21,
84 .cle = 22,
85 .rdy_pin = AT91_PIN_PC13,
86 .enable_pin = AT91_PIN_PC14,
87 .bus_width_16 = 0,
88 .det_pin = -EINVAL,
89 };
90
91 static struct sam9_smc_config __initdata nand_smc_config = {
92 .ncs_read_setup = 0,
93 .nrd_setup = 2,
94 .ncs_write_setup = 0,
95 .nwe_setup = 2,
96
97 .ncs_read_pulse = 4,
98 .nrd_pulse = 4,
99 .ncs_write_pulse = 4,
100 .nwe_pulse = 4,
101
102 .read_cycle = 7,
103 .write_cycle = 7,
104
105 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
106 .tdf_cycles = 3,
107 };
108
add_device_nand(void)109 static void __init add_device_nand(void)
110 {
111 /* configure chip-select 3 (NAND) */
112 sam9_smc_configure(0, 3, &nand_smc_config);
113
114 at91_add_device_nand(&nand_data);
115 }
116
117
118 /*
119 * MCI (SD/MMC)
120 * det_pin, wp_pin and vcc_pin are not connected
121 */
122 #if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
123 static struct mci_platform_data __initdata mmc_data = {
124 .slot[0] = {
125 .bus_width = 4,
126 .detect_pin = -1,
127 .wp_pin = -1,
128 },
129 };
130 #else
131 static struct at91_mmc_data __initdata mmc_data = {
132 .slot_b = 0,
133 .wire4 = 1,
134 .det_pin = -EINVAL,
135 .wp_pin = -EINVAL,
136 .vcc_pin = -EINVAL,
137 };
138 #endif
139
140
141 /*
142 * USB Host port
143 */
144 static struct at91_usbh_data __initdata usbh_data = {
145 .ports = 2,
146 .vbus_pin = {-EINVAL, -EINVAL},
147 .overcurrent_pin= {-EINVAL, -EINVAL},
148 };
149
150
151 /*
152 * USB Device port
153 */
154 static struct at91_udc_data __initdata portuxg20_udc_data = {
155 .vbus_pin = AT91_PIN_PC7,
156 .pullup_pin = -EINVAL, /* pull-up driven by UDC */
157 };
158
159 static struct at91_udc_data __initdata stamp9g20evb_udc_data = {
160 .vbus_pin = AT91_PIN_PA22,
161 .pullup_pin = -EINVAL, /* pull-up driven by UDC */
162 };
163
164
165 /*
166 * MACB Ethernet device
167 */
168 static struct macb_platform_data __initdata macb_data = {
169 .phy_irq_pin = AT91_PIN_PA28,
170 .is_rmii = 1,
171 };
172
173
174 /*
175 * LEDs
176 */
177 static struct gpio_led portuxg20_leds[] = {
178 {
179 .name = "LED2",
180 .gpio = AT91_PIN_PC5,
181 .default_trigger = "none",
182 }, {
183 .name = "LED3",
184 .gpio = AT91_PIN_PC4,
185 .default_trigger = "none",
186 }, {
187 .name = "LED4",
188 .gpio = AT91_PIN_PC10,
189 .default_trigger = "heartbeat",
190 }
191 };
192
193 static struct gpio_led stamp9g20evb_leds[] = {
194 {
195 .name = "D8",
196 .gpio = AT91_PIN_PB18,
197 .active_low = 1,
198 .default_trigger = "none",
199 }, {
200 .name = "D9",
201 .gpio = AT91_PIN_PB19,
202 .active_low = 1,
203 .default_trigger = "none",
204 }, {
205 .name = "D10",
206 .gpio = AT91_PIN_PB20,
207 .active_low = 1,
208 .default_trigger = "heartbeat",
209 }
210 };
211
212
213 /*
214 * SPI devices
215 */
216 static struct spi_board_info portuxg20_spi_devices[] = {
217 {
218 .modalias = "spidev",
219 .chip_select = 0,
220 .max_speed_hz = 1 * 1000 * 1000,
221 .bus_num = 0,
222 }, {
223 .modalias = "spidev",
224 .chip_select = 0,
225 .max_speed_hz = 1 * 1000 * 1000,
226 .bus_num = 1,
227 },
228 };
229
230
231 /*
232 * Dallas 1-Wire
233 */
234 static struct w1_gpio_platform_data w1_gpio_pdata = {
235 .pin = AT91_PIN_PA29,
236 .is_open_drain = 1,
237 };
238
239 static struct platform_device w1_device = {
240 .name = "w1-gpio",
241 .id = -1,
242 .dev.platform_data = &w1_gpio_pdata,
243 };
244
add_w1(void)245 void add_w1(void)
246 {
247 at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
248 at91_set_multi_drive(w1_gpio_pdata.pin, 1);
249 platform_device_register(&w1_device);
250 }
251
252
stamp9g20_board_init(void)253 void __init stamp9g20_board_init(void)
254 {
255 /* Serial */
256 at91_add_device_serial();
257 /* NAND */
258 add_device_nand();
259 /* MMC */
260 #if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
261 at91_add_device_mci(0, &mmc_data);
262 #else
263 at91_add_device_mmc(0, &mmc_data);
264 #endif
265 /* W1 */
266 add_w1();
267 }
268
portuxg20_board_init(void)269 static void __init portuxg20_board_init(void)
270 {
271 stamp9g20_board_init();
272 /* USB Host */
273 at91_add_device_usbh(&usbh_data);
274 /* USB Device */
275 at91_add_device_udc(&portuxg20_udc_data);
276 /* Ethernet */
277 at91_add_device_eth(&macb_data);
278 /* I2C */
279 at91_add_device_i2c(NULL, 0);
280 /* SPI */
281 at91_add_device_spi(portuxg20_spi_devices, ARRAY_SIZE(portuxg20_spi_devices));
282 /* LEDs */
283 at91_gpio_leds(portuxg20_leds, ARRAY_SIZE(portuxg20_leds));
284 }
285
stamp9g20evb_board_init(void)286 static void __init stamp9g20evb_board_init(void)
287 {
288 stamp9g20_board_init();
289 /* USB Host */
290 at91_add_device_usbh(&usbh_data);
291 /* USB Device */
292 at91_add_device_udc(&stamp9g20evb_udc_data);
293 /* Ethernet */
294 at91_add_device_eth(&macb_data);
295 /* I2C */
296 at91_add_device_i2c(NULL, 0);
297 /* LEDs */
298 at91_gpio_leds(stamp9g20evb_leds, ARRAY_SIZE(stamp9g20evb_leds));
299 }
300
301 MACHINE_START(PORTUXG20, "taskit PortuxG20")
302 /* Maintainer: taskit GmbH */
303 .timer = &at91sam926x_timer,
304 .map_io = at91_map_io,
305 .init_early = portuxg20_init_early,
306 .init_irq = at91_init_irq_default,
307 .init_machine = portuxg20_board_init,
308 MACHINE_END
309
310 MACHINE_START(STAMP9G20, "taskit Stamp9G20")
311 /* Maintainer: taskit GmbH */
312 .timer = &at91sam926x_timer,
313 .map_io = at91_map_io,
314 .init_early = stamp9g20evb_init_early,
315 .init_irq = at91_init_irq_default,
316 .init_machine = stamp9g20evb_board_init,
317 MACHINE_END
318