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 .ecc_mode = NAND_ECC_SOFT,
90 };
91
92 static struct sam9_smc_config __initdata nand_smc_config = {
93 .ncs_read_setup = 0,
94 .nrd_setup = 2,
95 .ncs_write_setup = 0,
96 .nwe_setup = 2,
97
98 .ncs_read_pulse = 4,
99 .nrd_pulse = 4,
100 .ncs_write_pulse = 4,
101 .nwe_pulse = 4,
102
103 .read_cycle = 7,
104 .write_cycle = 7,
105
106 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
107 .tdf_cycles = 3,
108 };
109
add_device_nand(void)110 static void __init add_device_nand(void)
111 {
112 /* configure chip-select 3 (NAND) */
113 sam9_smc_configure(0, 3, &nand_smc_config);
114
115 at91_add_device_nand(&nand_data);
116 }
117
118
119 /*
120 * MCI (SD/MMC)
121 * det_pin, wp_pin and vcc_pin are not connected
122 */
123 #if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
124 static struct mci_platform_data __initdata mmc_data = {
125 .slot[0] = {
126 .bus_width = 4,
127 .detect_pin = -1,
128 .wp_pin = -1,
129 },
130 };
131 #else
132 static struct at91_mmc_data __initdata mmc_data = {
133 .slot_b = 0,
134 .wire4 = 1,
135 .det_pin = -EINVAL,
136 .wp_pin = -EINVAL,
137 .vcc_pin = -EINVAL,
138 };
139 #endif
140
141
142 /*
143 * USB Host port
144 */
145 static struct at91_usbh_data __initdata usbh_data = {
146 .ports = 2,
147 .vbus_pin = {-EINVAL, -EINVAL},
148 .overcurrent_pin= {-EINVAL, -EINVAL},
149 };
150
151
152 /*
153 * USB Device port
154 */
155 static struct at91_udc_data __initdata portuxg20_udc_data = {
156 .vbus_pin = AT91_PIN_PC7,
157 .pullup_pin = -EINVAL, /* pull-up driven by UDC */
158 };
159
160 static struct at91_udc_data __initdata stamp9g20evb_udc_data = {
161 .vbus_pin = AT91_PIN_PA22,
162 .pullup_pin = -EINVAL, /* pull-up driven by UDC */
163 };
164
165
166 /*
167 * MACB Ethernet device
168 */
169 static struct macb_platform_data __initdata macb_data = {
170 .phy_irq_pin = AT91_PIN_PA28,
171 .is_rmii = 1,
172 };
173
174
175 /*
176 * LEDs
177 */
178 static struct gpio_led portuxg20_leds[] = {
179 {
180 .name = "LED2",
181 .gpio = AT91_PIN_PC5,
182 .default_trigger = "none",
183 }, {
184 .name = "LED3",
185 .gpio = AT91_PIN_PC4,
186 .default_trigger = "none",
187 }, {
188 .name = "LED4",
189 .gpio = AT91_PIN_PC10,
190 .default_trigger = "heartbeat",
191 }
192 };
193
194 static struct gpio_led stamp9g20evb_leds[] = {
195 {
196 .name = "D8",
197 .gpio = AT91_PIN_PB18,
198 .active_low = 1,
199 .default_trigger = "none",
200 }, {
201 .name = "D9",
202 .gpio = AT91_PIN_PB19,
203 .active_low = 1,
204 .default_trigger = "none",
205 }, {
206 .name = "D10",
207 .gpio = AT91_PIN_PB20,
208 .active_low = 1,
209 .default_trigger = "heartbeat",
210 }
211 };
212
213
214 /*
215 * SPI devices
216 */
217 static struct spi_board_info portuxg20_spi_devices[] = {
218 {
219 .modalias = "spidev",
220 .chip_select = 0,
221 .max_speed_hz = 1 * 1000 * 1000,
222 .bus_num = 0,
223 }, {
224 .modalias = "spidev",
225 .chip_select = 0,
226 .max_speed_hz = 1 * 1000 * 1000,
227 .bus_num = 1,
228 },
229 };
230
231
232 /*
233 * Dallas 1-Wire
234 */
235 static struct w1_gpio_platform_data w1_gpio_pdata = {
236 .pin = AT91_PIN_PA29,
237 .is_open_drain = 1,
238 };
239
240 static struct platform_device w1_device = {
241 .name = "w1-gpio",
242 .id = -1,
243 .dev.platform_data = &w1_gpio_pdata,
244 };
245
add_w1(void)246 void add_w1(void)
247 {
248 at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
249 at91_set_multi_drive(w1_gpio_pdata.pin, 1);
250 platform_device_register(&w1_device);
251 }
252
253
stamp9g20_board_init(void)254 void __init stamp9g20_board_init(void)
255 {
256 /* Serial */
257 at91_add_device_serial();
258 /* NAND */
259 add_device_nand();
260 /* MMC */
261 #if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
262 at91_add_device_mci(0, &mmc_data);
263 #else
264 at91_add_device_mmc(0, &mmc_data);
265 #endif
266 /* W1 */
267 add_w1();
268 }
269
portuxg20_board_init(void)270 static void __init portuxg20_board_init(void)
271 {
272 stamp9g20_board_init();
273 /* USB Host */
274 at91_add_device_usbh(&usbh_data);
275 /* USB Device */
276 at91_add_device_udc(&portuxg20_udc_data);
277 /* Ethernet */
278 at91_add_device_eth(&macb_data);
279 /* I2C */
280 at91_add_device_i2c(NULL, 0);
281 /* SPI */
282 at91_add_device_spi(portuxg20_spi_devices, ARRAY_SIZE(portuxg20_spi_devices));
283 /* LEDs */
284 at91_gpio_leds(portuxg20_leds, ARRAY_SIZE(portuxg20_leds));
285 }
286
stamp9g20evb_board_init(void)287 static void __init stamp9g20evb_board_init(void)
288 {
289 stamp9g20_board_init();
290 /* USB Host */
291 at91_add_device_usbh(&usbh_data);
292 /* USB Device */
293 at91_add_device_udc(&stamp9g20evb_udc_data);
294 /* Ethernet */
295 at91_add_device_eth(&macb_data);
296 /* I2C */
297 at91_add_device_i2c(NULL, 0);
298 /* LEDs */
299 at91_gpio_leds(stamp9g20evb_leds, ARRAY_SIZE(stamp9g20evb_leds));
300 }
301
302 MACHINE_START(PORTUXG20, "taskit PortuxG20")
303 /* Maintainer: taskit GmbH */
304 .timer = &at91sam926x_timer,
305 .map_io = at91_map_io,
306 .init_early = portuxg20_init_early,
307 .init_irq = at91_init_irq_default,
308 .init_machine = portuxg20_board_init,
309 MACHINE_END
310
311 MACHINE_START(STAMP9G20, "taskit Stamp9G20")
312 /* Maintainer: taskit GmbH */
313 .timer = &at91sam926x_timer,
314 .map_io = at91_map_io,
315 .init_early = stamp9g20evb_init_early,
316 .init_irq = at91_init_irq_default,
317 .init_machine = stamp9g20evb_board_init,
318 MACHINE_END
319