Merge tag 'arc-3.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
[sfrench/cifs-2.6.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 #include "gpio.h"
36
37
38 void __init stamp9g20_init_early(void)
39 {
40         /* Initialize processor: 18.432 MHz crystal */
41         at91_initialize(18432000);
42 }
43
44 /*
45  * NAND flash
46  */
47 static struct atmel_nand_data __initdata nand_data = {
48         .ale            = 21,
49         .cle            = 22,
50         .rdy_pin        = AT91_PIN_PC13,
51         .enable_pin     = AT91_PIN_PC14,
52         .bus_width_16   = 0,
53         .det_pin        = -EINVAL,
54         .ecc_mode       = NAND_ECC_SOFT,
55 };
56
57 static struct sam9_smc_config __initdata nand_smc_config = {
58         .ncs_read_setup         = 0,
59         .nrd_setup              = 2,
60         .ncs_write_setup        = 0,
61         .nwe_setup              = 2,
62
63         .ncs_read_pulse         = 4,
64         .nrd_pulse              = 4,
65         .ncs_write_pulse        = 4,
66         .nwe_pulse              = 4,
67
68         .read_cycle             = 7,
69         .write_cycle            = 7,
70
71         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_DBW_8,
72         .tdf_cycles             = 3,
73 };
74
75 static void __init add_device_nand(void)
76 {
77         /* configure chip-select 3 (NAND) */
78         sam9_smc_configure(0, 3, &nand_smc_config);
79
80         at91_add_device_nand(&nand_data);
81 }
82
83
84 /*
85  * MCI (SD/MMC)
86  * det_pin, wp_pin and vcc_pin are not connected
87  */
88 static struct mci_platform_data __initdata mmc_data = {
89         .slot[0] = {
90                 .bus_width      = 4,
91                 .detect_pin     = -1,
92                 .wp_pin         = -1,
93         },
94 };
95
96
97 /*
98  * USB Host port
99  */
100 static struct at91_usbh_data __initdata usbh_data = {
101         .ports          = 2,
102         .vbus_pin       = {-EINVAL, -EINVAL},
103         .overcurrent_pin= {-EINVAL, -EINVAL},
104 };
105
106
107 /*
108  * USB Device port
109  */
110 static struct at91_udc_data __initdata portuxg20_udc_data = {
111         .vbus_pin       = AT91_PIN_PC7,
112         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
113 };
114
115 static struct at91_udc_data __initdata stamp9g20evb_udc_data = {
116         .vbus_pin       = AT91_PIN_PA22,
117         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
118 };
119
120
121 /*
122  * MACB Ethernet device
123  */
124 static struct macb_platform_data __initdata macb_data = {
125         .phy_irq_pin    = AT91_PIN_PA28,
126         .is_rmii        = 1,
127 };
128
129
130 /*
131  * LEDs
132  */
133 static struct gpio_led portuxg20_leds[] = {
134         {
135                 .name                   = "LED2",
136                 .gpio                   = AT91_PIN_PC5,
137                 .default_trigger        = "none",
138         }, {
139                 .name                   = "LED3",
140                 .gpio                   = AT91_PIN_PC4,
141                 .default_trigger        = "none",
142         }, {
143                 .name                   = "LED4",
144                 .gpio                   = AT91_PIN_PC10,
145                 .default_trigger        = "heartbeat",
146         }
147 };
148
149 static struct gpio_led stamp9g20evb_leds[] = {
150         {
151                 .name                   = "D8",
152                 .gpio                   = AT91_PIN_PB18,
153                 .active_low             = 1,
154                 .default_trigger        = "none",
155         }, {
156                 .name                   = "D9",
157                 .gpio                   = AT91_PIN_PB19,
158                 .active_low             = 1,
159                 .default_trigger        = "none",
160         }, {
161                 .name                   = "D10",
162                 .gpio                   = AT91_PIN_PB20,
163                 .active_low             = 1,
164                 .default_trigger        = "heartbeat",
165         }
166 };
167
168
169 /*
170  * SPI devices
171  */
172 static struct spi_board_info portuxg20_spi_devices[] = {
173         {
174                 .modalias       = "spidev",
175                 .chip_select    = 0,
176                 .max_speed_hz   = 1 * 1000 * 1000,
177                 .bus_num        = 0,
178         }, {
179                 .modalias       = "spidev",
180                 .chip_select    = 0,
181                 .max_speed_hz   = 1 * 1000 * 1000,
182                 .bus_num        = 1,
183         },
184 };
185
186
187 /*
188  * Dallas 1-Wire
189  */
190 static struct w1_gpio_platform_data w1_gpio_pdata = {
191         .pin            = AT91_PIN_PA29,
192         .is_open_drain  = 1,
193         .ext_pullup_enable_pin  = -EINVAL,
194 };
195
196 static struct platform_device w1_device = {
197         .name                   = "w1-gpio",
198         .id                     = -1,
199         .dev.platform_data      = &w1_gpio_pdata,
200 };
201
202 void add_w1(void)
203 {
204         at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
205         at91_set_multi_drive(w1_gpio_pdata.pin, 1);
206         platform_device_register(&w1_device);
207 }
208
209
210 void __init stamp9g20_board_init(void)
211 {
212         /* Serial */
213         /* DGBU on ttyS0. (Rx & Tx only) */
214         at91_register_uart(0, 0, 0);
215         at91_add_device_serial();
216         /* NAND */
217         add_device_nand();
218         /* MMC */
219         at91_add_device_mci(0, &mmc_data);
220         /* W1 */
221         add_w1();
222 }
223
224 static void __init portuxg20_board_init(void)
225 {
226         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
227         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
228                                                 | ATMEL_UART_DTR | ATMEL_UART_DSR
229                                                 | ATMEL_UART_DCD | ATMEL_UART_RI);
230
231         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) */
232         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
233
234         /* USART2 on ttyS3. (Rx, Tx, CTS, RTS) */
235         at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS | ATMEL_UART_RTS);
236
237         /* USART4 on ttyS5. (Rx, Tx only) */
238         at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
239
240         /* USART5 on ttyS6. (Rx, Tx only) */
241         at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
242         stamp9g20_board_init();
243         /* USB Host */
244         at91_add_device_usbh(&usbh_data);
245         /* USB Device */
246         at91_add_device_udc(&portuxg20_udc_data);
247         /* Ethernet */
248         at91_add_device_eth(&macb_data);
249         /* I2C */
250         at91_add_device_i2c(NULL, 0);
251         /* SPI */
252         at91_add_device_spi(portuxg20_spi_devices, ARRAY_SIZE(portuxg20_spi_devices));
253         /* LEDs */
254         at91_gpio_leds(portuxg20_leds, ARRAY_SIZE(portuxg20_leds));
255 }
256
257 static void __init stamp9g20evb_board_init(void)
258 {
259         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
260         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
261                                                 | ATMEL_UART_DTR | ATMEL_UART_DSR
262                                                 | ATMEL_UART_DCD | ATMEL_UART_RI);
263         stamp9g20_board_init();
264         /* USB Host */
265         at91_add_device_usbh(&usbh_data);
266         /* USB Device */
267         at91_add_device_udc(&stamp9g20evb_udc_data);
268         /* Ethernet */
269         at91_add_device_eth(&macb_data);
270         /* I2C */
271         at91_add_device_i2c(NULL, 0);
272         /* LEDs */
273         at91_gpio_leds(stamp9g20evb_leds, ARRAY_SIZE(stamp9g20evb_leds));
274 }
275
276 MACHINE_START(PORTUXG20, "taskit PortuxG20")
277         /* Maintainer: taskit GmbH */
278         .init_time      = at91_init_time,
279         .map_io         = at91_map_io,
280         .handle_irq     = at91_aic_handle_irq,
281         .init_early     = stamp9g20_init_early,
282         .init_irq       = at91_init_irq_default,
283         .init_machine   = portuxg20_board_init,
284 MACHINE_END
285
286 MACHINE_START(STAMP9G20, "taskit Stamp9G20")
287         /* Maintainer: taskit GmbH */
288         .init_time      = at91_init_time,
289         .map_io         = at91_map_io,
290         .handle_irq     = at91_aic_handle_irq,
291         .init_early     = stamp9g20_init_early,
292         .init_irq       = at91_init_irq_default,
293         .init_machine   = stamp9g20evb_board_init,
294 MACHINE_END