1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
|
/*
* Copyright (C) 2010 Christian Glindkamp <christian.glindkamp@taskit.de>
* taskit GmbH
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/mm.h>
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/w1-gpio.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <mach/board.h>
#include <mach/at91sam9_smc.h>
#include "sam9_smc.h"
#include "generic.h"
static void __init portuxg20_map_io(void)
{
/* Initialize processor: 18.432 MHz crystal */
at91sam9260_initialize(18432000);
/* DGBU on ttyS0. (Rx & Tx only) */
at91_register_uart(0, 0, 0);
/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
| ATMEL_UART_DTR | ATMEL_UART_DSR
| ATMEL_UART_DCD | ATMEL_UART_RI);
/* USART1 on ttyS2. (Rx, Tx, CTS, RTS) */
at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
/* USART2 on ttyS3. (Rx, Tx, CTS, RTS) */
at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS | ATMEL_UART_RTS);
/* USART4 on ttyS5. (Rx, Tx only) */
at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
/* USART5 on ttyS6. (Rx, Tx only) */
at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
/* set serial console to ttyS0 (ie, DBGU) */
at91_set_serial_console(0);
}
static void __init stamp9g20_map_io(void)
{
/* Initialize processor: 18.432 MHz crystal */
at91sam9260_initialize(18432000);
/* DGBU on ttyS0. (Rx & Tx only) */
at91_register_uart(0, 0, 0);
/* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
| ATMEL_UART_DTR | ATMEL_UART_DSR
| ATMEL_UART_DCD | ATMEL_UART_RI);
/* set serial console to ttyS0 (ie, DBGU) */
at91_set_serial_console(0);
}
static void __init init_irq(void)
{
at91sam9260_init_interrupts(NULL);
}
/*
* NAND flash
*/
static struct atmel_nand_data __initdata nand_data = {
.ale = 21,
.cle = 22,
.rdy_pin = AT91_PIN_PC13,
.enable_pin = AT91_PIN_PC14,
.bus_width_16 = 0,
};
static struct sam9_smc_config __initdata nand_smc_config = {
.ncs_read_setup = 0,
.nrd_setup = 2,
.ncs_write_setup = 0,
.nwe_setup = 2,
.ncs_read_pulse = 4,
.nrd_pulse = 4,
.ncs_write_pulse = 4,
.nwe_pulse = 4,
.read_cycle = 7,
.write_cycle = 7,
.mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
.tdf_cycles = 3,
};
static void __init add_device_nand(void)
{
/* configure chip-select 3 (NAND) */
sam9_smc_configure(3, &nand_smc_config);
at91_add_device_nand(&nand_data);
}
/*
* MCI (SD/MMC)
* det_pin, wp_pin and vcc_pin are not connected
*/
#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
static struct mci_platform_data __initdata mmc_data = {
.slot[0] = {
.bus_width = 4,
},
};
#else
static struct at91_mmc_data __initdata mmc_data = {
.slot_b = 0,
.wire4 = 1,
};
#endif
/*
* USB Host port
*/
static struct at91_usbh_data __initdata usbh_data = {
.ports = 2,
};
/*
* USB Device port
*/
static struct at91_udc_data __initdata portuxg20_udc_data = {
.vbus_pin = AT91_PIN_PC7,
.pullup_pin = 0, /* pull-up driven by UDC */
};
static struct at91_udc_data __initdata stamp9g20_udc_data = {
.vbus_pin = AT91_PIN_PA22,
.pullup_pin = 0, /* pull-up driven by UDC */
};
/*
* MACB Ethernet device
*/
static struct at91_eth_data __initdata macb_data = {
.phy_irq_pin = AT91_PIN_PA28,
.is_rmii = 1,
};
/*
* LEDs
*/
static struct gpio_led portuxg20_leds[] = {
{
.name = "LED2",
.gpio = AT91_PIN_PC5,
.default_trigger = "none",
}, {
.name = "LED3",
.gpio = AT91_PIN_PC4,
.default_trigger = "none",
}, {
.name = "LED4",
.gpio = AT91_PIN_PC10,
.default_trigger = "heartbeat",
}
};
static struct gpio_led stamp9g20_leds[] = {
{
.name = "D8",
.gpio = AT91_PIN_PB18,
.active_low = 1,
.default_trigger = "none",
}, {
.name = "D9",
.gpio = AT91_PIN_PB19,
.active_low = 1,
.default_trigger = "none",
}, {
.name = "D10",
.gpio = AT91_PIN_PB20,
.active_low = 1,
.default_trigger = "heartbeat",
}
};
/*
* SPI devices
*/
static struct spi_board_info portuxg20_spi_devices[] = {
{
.modalias = "spidev",
.chip_select = 0,
.max_speed_hz = 1 * 1000 * 1000,
.bus_num = 0,
}, {
.modalias = "spidev",
.chip_select = 0,
.max_speed_hz = 1 * 1000 * 1000,
.bus_num = 1,
},
};
/*
* Dallas 1-Wire
*/
static struct w1_gpio_platform_data w1_gpio_pdata = {
.pin = AT91_PIN_PA29,
.is_open_drain = 1,
};
static struct platform_device w1_device = {
.name = "w1-gpio",
.id = -1,
.dev.platform_data = &w1_gpio_pdata,
};
void add_w1(void)
{
at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
at91_set_multi_drive(w1_gpio_pdata.pin, 1);
platform_device_register(&w1_device);
}
static void __init generic_board_init(void)
{
/* Serial */
at91_add_device_serial();
/* NAND */
add_device_nand();
/* MMC */
#if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
at91_add_device_mci(0, &mmc_data);
#else
at91_add_device_mmc(0, &mmc_data);
#endif
/* USB Host */
at91_add_device_usbh(&usbh_data);
/* Ethernet */
at91_add_device_eth(&macb_data);
/* I2C */
at91_add_device_i2c(NULL, 0);
/* W1 */
add_w1();
}
static void __init portuxg20_board_init(void)
{
generic_board_init();
/* SPI */
at91_add_device_spi(portuxg20_spi_devices, ARRAY_SIZE(portuxg20_spi_devices));
/* USB Device */
at91_add_device_udc(&portuxg20_udc_data);
/* LEDs */
at91_gpio_leds(portuxg20_leds, ARRAY_SIZE(portuxg20_leds));
}
static void __init stamp9g20_board_init(void)
{
generic_board_init();
/* USB Device */
at91_add_device_udc(&stamp9g20_udc_data);
/* LEDs */
at91_gpio_leds(stamp9g20_leds, ARRAY_SIZE(stamp9g20_leds));
}
MACHINE_START(PORTUXG20, "taskit PortuxG20")
/* Maintainer: taskit GmbH */
.boot_params = AT91_SDRAM_BASE + 0x100,
.timer = &at91sam926x_timer,
.map_io = portuxg20_map_io,
.init_irq = init_irq,
.init_machine = portuxg20_board_init,
MACHINE_END
MACHINE_START(STAMP9G20, "taskit Stamp9G20")
/* Maintainer: taskit GmbH */
.boot_params = AT91_SDRAM_BASE + 0x100,
.timer = &at91sam926x_timer,
.map_io = stamp9g20_map_io,
.init_irq = init_irq,
.init_machine = stamp9g20_board_init,
MACHINE_END
|
