Merge branch 'async-scsi-resume' of git://git.kernel.org/pub/scm/linux/kernel/git...
[linux.git] / arch / arm / mach-at91 / board-stamp9g20.c
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/at91sam9_smc.h>
29 #include <mach/hardware.h>
30
31 #include "at91_aic.h"
32 #include "board.h"
33 #include "sam9_smc.h"
34 #include "generic.h"
35
36
37 void __init stamp9g20_init_early(void)
38 {
39         /* Initialize processor: 18.432 MHz crystal */
40         at91_initialize(18432000);
41 }
42
43 /*
44  * NAND flash
45  */
46 static struct atmel_nand_data __initdata nand_data = {
47         .ale            = 21,
48         .cle            = 22,
49         .rdy_pin        = AT91_PIN_PC13,
50         .enable_pin     = AT91_PIN_PC14,
51         .bus_width_16   = 0,
52         .det_pin        = -EINVAL,
53         .ecc_mode       = NAND_ECC_SOFT,
54 };
55
56 static struct sam9_smc_config __initdata nand_smc_config = {
57         .ncs_read_setup         = 0,
58         .nrd_setup              = 2,
59         .ncs_write_setup        = 0,
60         .nwe_setup              = 2,
61
62         .ncs_read_pulse         = 4,
63         .nrd_pulse              = 4,
64         .ncs_write_pulse        = 4,
65         .nwe_pulse              = 4,
66
67         .read_cycle             = 7,
68         .write_cycle            = 7,
69
70         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
71         .tdf_cycles             = 3,
72 };
73
74 static void __init add_device_nand(void)
75 {
76         /* configure chip-select 3 (NAND) */
77         sam9_smc_configure(0, 3, &nand_smc_config);
78
79         at91_add_device_nand(&nand_data);
80 }
81
82
83 /*
84  * MCI (SD/MMC)
85  * det_pin, wp_pin and vcc_pin are not connected
86  */
87 static struct mci_platform_data __initdata mmc_data = {
88         .slot[0] = {
89                 .bus_width      = 4,
90                 .detect_pin     = -1,
91                 .wp_pin         = -1,
92         },
93 };
94
95
96 /*
97  * USB Host port
98  */
99 static struct at91_usbh_data __initdata usbh_data = {
100         .ports          = 2,
101         .vbus_pin       = {-EINVAL, -EINVAL},
102         .overcurrent_pin= {-EINVAL, -EINVAL},
103 };
104
105
106 /*
107  * USB Device port
108  */
109 static struct at91_udc_data __initdata portuxg20_udc_data = {
110         .vbus_pin       = AT91_PIN_PC7,
111         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
112 };
113
114 static struct at91_udc_data __initdata stamp9g20evb_udc_data = {
115         .vbus_pin       = AT91_PIN_PA22,
116         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
117 };
118
119
120 /*
121  * MACB Ethernet device
122  */
123 static struct macb_platform_data __initdata macb_data = {
124         .phy_irq_pin    = AT91_PIN_PA28,
125         .is_rmii        = 1,
126 };
127
128
129 /*
130  * LEDs
131  */
132 static struct gpio_led portuxg20_leds[] = {
133         {
134                 .name                   = "LED2",
135                 .gpio                   = AT91_PIN_PC5,
136                 .default_trigger        = "none",
137         }, {
138                 .name                   = "LED3",
139                 .gpio                   = AT91_PIN_PC4,
140                 .default_trigger        = "none",
141         }, {
142                 .name                   = "LED4",
143                 .gpio                   = AT91_PIN_PC10,
144                 .default_trigger        = "heartbeat",
145         }
146 };
147
148 static struct gpio_led stamp9g20evb_leds[] = {
149         {
150                 .name                   = "D8",
151                 .gpio                   = AT91_PIN_PB18,
152                 .active_low             = 1,
153                 .default_trigger        = "none",
154         }, {
155                 .name                   = "D9",
156                 .gpio                   = AT91_PIN_PB19,
157                 .active_low             = 1,
158                 .default_trigger        = "none",
159         }, {
160                 .name                   = "D10",
161                 .gpio                   = AT91_PIN_PB20,
162                 .active_low             = 1,
163                 .default_trigger        = "heartbeat",
164         }
165 };
166
167
168 /*
169  * SPI devices
170  */
171 static struct spi_board_info portuxg20_spi_devices[] = {
172         {
173                 .modalias       = "spidev",
174                 .chip_select    = 0,
175                 .max_speed_hz   = 1 * 1000 * 1000,
176                 .bus_num        = 0,
177         }, {
178                 .modalias       = "spidev",
179                 .chip_select    = 0,
180                 .max_speed_hz   = 1 * 1000 * 1000,
181                 .bus_num        = 1,
182         },
183 };
184
185
186 /*
187  * Dallas 1-Wire
188  */
189 static struct w1_gpio_platform_data w1_gpio_pdata = {
190         .pin            = AT91_PIN_PA29,
191         .is_open_drain  = 1,
192         .ext_pullup_enable_pin  = -EINVAL,
193 };
194
195 static struct platform_device w1_device = {
196         .name                   = "w1-gpio",
197         .id                     = -1,
198         .dev.platform_data      = &w1_gpio_pdata,
199 };
200
201 void add_w1(void)
202 {
203         at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
204         at91_set_multi_drive(w1_gpio_pdata.pin, 1);
205         platform_device_register(&w1_device);
206 }
207
208
209 void __init stamp9g20_board_init(void)
210 {
211         /* Serial */
212         /* DGBU on ttyS0. (Rx & Tx only) */
213         at91_register_uart(0, 0, 0);
214         at91_add_device_serial();
215         /* NAND */
216         add_device_nand();
217         /* MMC */
218         at91_add_device_mci(0, &mmc_data);
219         /* W1 */
220         add_w1();
221 }
222
223 static void __init portuxg20_board_init(void)
224 {
225         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
226         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
227                                                 | ATMEL_UART_DTR | ATMEL_UART_DSR
228                                                 | ATMEL_UART_DCD | ATMEL_UART_RI);
229
230         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) */
231         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
232
233         /* USART2 on ttyS3. (Rx, Tx, CTS, RTS) */
234         at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS | ATMEL_UART_RTS);
235
236         /* USART4 on ttyS5. (Rx, Tx only) */
237         at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
238
239         /* USART5 on ttyS6. (Rx, Tx only) */
240         at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
241         stamp9g20_board_init();
242         /* USB Host */
243         at91_add_device_usbh(&usbh_data);
244         /* USB Device */
245         at91_add_device_udc(&portuxg20_udc_data);
246         /* Ethernet */
247         at91_add_device_eth(&macb_data);
248         /* I2C */
249         at91_add_device_i2c(NULL, 0);
250         /* SPI */
251         at91_add_device_spi(portuxg20_spi_devices, ARRAY_SIZE(portuxg20_spi_devices));
252         /* LEDs */
253         at91_gpio_leds(portuxg20_leds, ARRAY_SIZE(portuxg20_leds));
254 }
255
256 static void __init stamp9g20evb_board_init(void)
257 {
258         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
259         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
260                                                 | ATMEL_UART_DTR | ATMEL_UART_DSR
261                                                 | ATMEL_UART_DCD | ATMEL_UART_RI);
262         stamp9g20_board_init();
263         /* USB Host */
264         at91_add_device_usbh(&usbh_data);
265         /* USB Device */
266         at91_add_device_udc(&stamp9g20evb_udc_data);
267         /* Ethernet */
268         at91_add_device_eth(&macb_data);
269         /* I2C */
270         at91_add_device_i2c(NULL, 0);
271         /* LEDs */
272         at91_gpio_leds(stamp9g20evb_leds, ARRAY_SIZE(stamp9g20evb_leds));
273 }
274
275 MACHINE_START(PORTUXG20, "taskit PortuxG20")
276         /* Maintainer: taskit GmbH */
277         .init_time      = at91sam926x_pit_init,
278         .map_io         = at91_map_io,
279         .handle_irq     = at91_aic_handle_irq,
280         .init_early     = stamp9g20_init_early,
281         .init_irq       = at91_init_irq_default,
282         .init_machine   = portuxg20_board_init,
283 MACHINE_END
284
285 MACHINE_START(STAMP9G20, "taskit Stamp9G20")
286         /* Maintainer: taskit GmbH */
287         .init_time      = at91sam926x_pit_init,
288         .map_io         = at91_map_io,
289         .handle_irq     = at91_aic_handle_irq,
290         .init_early     = stamp9g20_init_early,
291         .init_irq       = at91_init_irq_default,
292         .init_machine   = stamp9g20evb_board_init,
293 MACHINE_END