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Merge tag 'for-linus' of git://linux-c6x.org/git/projects/linux-c6x-upstreaming
[~andy/linux] / 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/board.h>
29 #include <mach/at91_aic.h>
30 #include <mach/at91sam9_smc.h>
31
32 #include "sam9_smc.h"
33 #include "generic.h"
34
35
36 void __init stamp9g20_init_early(void)
37 {
38         /* Initialize processor: 18.432 MHz crystal */
39         at91_initialize(18432000);
40 }
41
42 /*
43  * NAND flash
44  */
45 static struct atmel_nand_data __initdata nand_data = {
46         .ale            = 21,
47         .cle            = 22,
48         .rdy_pin        = AT91_PIN_PC13,
49         .enable_pin     = AT91_PIN_PC14,
50         .bus_width_16   = 0,
51         .det_pin        = -EINVAL,
52         .ecc_mode       = NAND_ECC_SOFT,
53 };
54
55 static struct sam9_smc_config __initdata nand_smc_config = {
56         .ncs_read_setup         = 0,
57         .nrd_setup              = 2,
58         .ncs_write_setup        = 0,
59         .nwe_setup              = 2,
60
61         .ncs_read_pulse         = 4,
62         .nrd_pulse              = 4,
63         .ncs_write_pulse        = 4,
64         .nwe_pulse              = 4,
65
66         .read_cycle             = 7,
67         .write_cycle            = 7,
68
69         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
70         .tdf_cycles             = 3,
71 };
72
73 static void __init add_device_nand(void)
74 {
75         /* configure chip-select 3 (NAND) */
76         sam9_smc_configure(0, 3, &nand_smc_config);
77
78         at91_add_device_nand(&nand_data);
79 }
80
81
82 /*
83  * MCI (SD/MMC)
84  * det_pin, wp_pin and vcc_pin are not connected
85  */
86 #if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
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 #else
95 static struct at91_mmc_data __initdata mmc_data = {
96         .slot_b         = 0,
97         .wire4          = 1,
98         .det_pin        = -EINVAL,
99         .wp_pin         = -EINVAL,
100         .vcc_pin        = -EINVAL,
101 };
102 #endif
103
104
105 /*
106  * USB Host port
107  */
108 static struct at91_usbh_data __initdata usbh_data = {
109         .ports          = 2,
110         .vbus_pin       = {-EINVAL, -EINVAL},
111         .overcurrent_pin= {-EINVAL, -EINVAL},
112 };
113
114
115 /*
116  * USB Device port
117  */
118 static struct at91_udc_data __initdata portuxg20_udc_data = {
119         .vbus_pin       = AT91_PIN_PC7,
120         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
121 };
122
123 static struct at91_udc_data __initdata stamp9g20evb_udc_data = {
124         .vbus_pin       = AT91_PIN_PA22,
125         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
126 };
127
128
129 /*
130  * MACB Ethernet device
131  */
132 static struct macb_platform_data __initdata macb_data = {
133         .phy_irq_pin    = AT91_PIN_PA28,
134         .is_rmii        = 1,
135 };
136
137
138 /*
139  * LEDs
140  */
141 static struct gpio_led portuxg20_leds[] = {
142         {
143                 .name                   = "LED2",
144                 .gpio                   = AT91_PIN_PC5,
145                 .default_trigger        = "none",
146         }, {
147                 .name                   = "LED3",
148                 .gpio                   = AT91_PIN_PC4,
149                 .default_trigger        = "none",
150         }, {
151                 .name                   = "LED4",
152                 .gpio                   = AT91_PIN_PC10,
153                 .default_trigger        = "heartbeat",
154         }
155 };
156
157 static struct gpio_led stamp9g20evb_leds[] = {
158         {
159                 .name                   = "D8",
160                 .gpio                   = AT91_PIN_PB18,
161                 .active_low             = 1,
162                 .default_trigger        = "none",
163         }, {
164                 .name                   = "D9",
165                 .gpio                   = AT91_PIN_PB19,
166                 .active_low             = 1,
167                 .default_trigger        = "none",
168         }, {
169                 .name                   = "D10",
170                 .gpio                   = AT91_PIN_PB20,
171                 .active_low             = 1,
172                 .default_trigger        = "heartbeat",
173         }
174 };
175
176
177 /*
178  * SPI devices
179  */
180 static struct spi_board_info portuxg20_spi_devices[] = {
181         {
182                 .modalias       = "spidev",
183                 .chip_select    = 0,
184                 .max_speed_hz   = 1 * 1000 * 1000,
185                 .bus_num        = 0,
186         }, {
187                 .modalias       = "spidev",
188                 .chip_select    = 0,
189                 .max_speed_hz   = 1 * 1000 * 1000,
190                 .bus_num        = 1,
191         },
192 };
193
194
195 /*
196  * Dallas 1-Wire
197  */
198 static struct w1_gpio_platform_data w1_gpio_pdata = {
199         .pin            = AT91_PIN_PA29,
200         .is_open_drain  = 1,
201 };
202
203 static struct platform_device w1_device = {
204         .name                   = "w1-gpio",
205         .id                     = -1,
206         .dev.platform_data      = &w1_gpio_pdata,
207 };
208
209 void add_w1(void)
210 {
211         at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
212         at91_set_multi_drive(w1_gpio_pdata.pin, 1);
213         platform_device_register(&w1_device);
214 }
215
216
217 void __init stamp9g20_board_init(void)
218 {
219         /* Serial */
220         /* DGBU on ttyS0. (Rx & Tx only) */
221         at91_register_uart(0, 0, 0);
222         at91_add_device_serial();
223         /* NAND */
224         add_device_nand();
225         /* MMC */
226 #if defined(CONFIG_MMC_ATMELMCI) || defined(CONFIG_MMC_ATMELMCI_MODULE)
227         at91_add_device_mci(0, &mmc_data);
228 #else
229         at91_add_device_mmc(0, &mmc_data);
230 #endif
231         /* W1 */
232         add_w1();
233 }
234
235 static void __init portuxg20_board_init(void)
236 {
237         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
238         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
239                                                 | ATMEL_UART_DTR | ATMEL_UART_DSR
240                                                 | ATMEL_UART_DCD | ATMEL_UART_RI);
241
242         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) */
243         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
244
245         /* USART2 on ttyS3. (Rx, Tx, CTS, RTS) */
246         at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS | ATMEL_UART_RTS);
247
248         /* USART4 on ttyS5. (Rx, Tx only) */
249         at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
250
251         /* USART5 on ttyS6. (Rx, Tx only) */
252         at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
253         stamp9g20_board_init();
254         /* USB Host */
255         at91_add_device_usbh(&usbh_data);
256         /* USB Device */
257         at91_add_device_udc(&portuxg20_udc_data);
258         /* Ethernet */
259         at91_add_device_eth(&macb_data);
260         /* I2C */
261         at91_add_device_i2c(NULL, 0);
262         /* SPI */
263         at91_add_device_spi(portuxg20_spi_devices, ARRAY_SIZE(portuxg20_spi_devices));
264         /* LEDs */
265         at91_gpio_leds(portuxg20_leds, ARRAY_SIZE(portuxg20_leds));
266 }
267
268 static void __init stamp9g20evb_board_init(void)
269 {
270         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
271         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
272                                                 | ATMEL_UART_DTR | ATMEL_UART_DSR
273                                                 | ATMEL_UART_DCD | ATMEL_UART_RI);
274         stamp9g20_board_init();
275         /* USB Host */
276         at91_add_device_usbh(&usbh_data);
277         /* USB Device */
278         at91_add_device_udc(&stamp9g20evb_udc_data);
279         /* Ethernet */
280         at91_add_device_eth(&macb_data);
281         /* I2C */
282         at91_add_device_i2c(NULL, 0);
283         /* LEDs */
284         at91_gpio_leds(stamp9g20evb_leds, ARRAY_SIZE(stamp9g20evb_leds));
285 }
286
287 MACHINE_START(PORTUXG20, "taskit PortuxG20")
288         /* Maintainer: taskit GmbH */
289         .timer          = &at91sam926x_timer,
290         .map_io         = at91_map_io,
291         .handle_irq     = at91_aic_handle_irq,
292         .init_early     = stamp9g20_init_early,
293         .init_irq       = at91_init_irq_default,
294         .init_machine   = portuxg20_board_init,
295 MACHINE_END
296
297 MACHINE_START(STAMP9G20, "taskit Stamp9G20")
298         /* Maintainer: taskit GmbH */
299         .timer          = &at91sam926x_timer,
300         .map_io         = at91_map_io,
301         .handle_irq     = at91_aic_handle_irq,
302         .init_early     = stamp9g20_init_early,
303         .init_irq       = at91_init_irq_default,
304         .init_machine   = stamp9g20evb_board_init,
305 MACHINE_END