Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm...
[linux-drm-fsl-dcu.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
30 #include "at91_aic.h"
31 #include "board.h"
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 static struct mci_platform_data __initdata mmc_data = {
87         .slot[0] = {
88                 .bus_width      = 4,
89                 .detect_pin     = -1,
90                 .wp_pin         = -1,
91         },
92 };
93
94
95 /*
96  * USB Host port
97  */
98 static struct at91_usbh_data __initdata usbh_data = {
99         .ports          = 2,
100         .vbus_pin       = {-EINVAL, -EINVAL},
101         .overcurrent_pin= {-EINVAL, -EINVAL},
102 };
103
104
105 /*
106  * USB Device port
107  */
108 static struct at91_udc_data __initdata portuxg20_udc_data = {
109         .vbus_pin       = AT91_PIN_PC7,
110         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
111 };
112
113 static struct at91_udc_data __initdata stamp9g20evb_udc_data = {
114         .vbus_pin       = AT91_PIN_PA22,
115         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
116 };
117
118
119 /*
120  * MACB Ethernet device
121  */
122 static struct macb_platform_data __initdata macb_data = {
123         .phy_irq_pin    = AT91_PIN_PA28,
124         .is_rmii        = 1,
125 };
126
127
128 /*
129  * LEDs
130  */
131 static struct gpio_led portuxg20_leds[] = {
132         {
133                 .name                   = "LED2",
134                 .gpio                   = AT91_PIN_PC5,
135                 .default_trigger        = "none",
136         }, {
137                 .name                   = "LED3",
138                 .gpio                   = AT91_PIN_PC4,
139                 .default_trigger        = "none",
140         }, {
141                 .name                   = "LED4",
142                 .gpio                   = AT91_PIN_PC10,
143                 .default_trigger        = "heartbeat",
144         }
145 };
146
147 static struct gpio_led stamp9g20evb_leds[] = {
148         {
149                 .name                   = "D8",
150                 .gpio                   = AT91_PIN_PB18,
151                 .active_low             = 1,
152                 .default_trigger        = "none",
153         }, {
154                 .name                   = "D9",
155                 .gpio                   = AT91_PIN_PB19,
156                 .active_low             = 1,
157                 .default_trigger        = "none",
158         }, {
159                 .name                   = "D10",
160                 .gpio                   = AT91_PIN_PB20,
161                 .active_low             = 1,
162                 .default_trigger        = "heartbeat",
163         }
164 };
165
166
167 /*
168  * SPI devices
169  */
170 static struct spi_board_info portuxg20_spi_devices[] = {
171         {
172                 .modalias       = "spidev",
173                 .chip_select    = 0,
174                 .max_speed_hz   = 1 * 1000 * 1000,
175                 .bus_num        = 0,
176         }, {
177                 .modalias       = "spidev",
178                 .chip_select    = 0,
179                 .max_speed_hz   = 1 * 1000 * 1000,
180                 .bus_num        = 1,
181         },
182 };
183
184
185 /*
186  * Dallas 1-Wire
187  */
188 static struct w1_gpio_platform_data w1_gpio_pdata = {
189         .pin            = AT91_PIN_PA29,
190         .is_open_drain  = 1,
191         .ext_pullup_enable_pin  = -EINVAL,
192 };
193
194 static struct platform_device w1_device = {
195         .name                   = "w1-gpio",
196         .id                     = -1,
197         .dev.platform_data      = &w1_gpio_pdata,
198 };
199
200 void add_w1(void)
201 {
202         at91_set_GPIO_periph(w1_gpio_pdata.pin, 1);
203         at91_set_multi_drive(w1_gpio_pdata.pin, 1);
204         platform_device_register(&w1_device);
205 }
206
207
208 void __init stamp9g20_board_init(void)
209 {
210         /* Serial */
211         /* DGBU on ttyS0. (Rx & Tx only) */
212         at91_register_uart(0, 0, 0);
213         at91_add_device_serial();
214         /* NAND */
215         add_device_nand();
216         /* MMC */
217         at91_add_device_mci(0, &mmc_data);
218         /* W1 */
219         add_w1();
220 }
221
222 static void __init portuxg20_board_init(void)
223 {
224         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
225         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
226                                                 | ATMEL_UART_DTR | ATMEL_UART_DSR
227                                                 | ATMEL_UART_DCD | ATMEL_UART_RI);
228
229         /* USART1 on ttyS2. (Rx, Tx, CTS, RTS) */
230         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
231
232         /* USART2 on ttyS3. (Rx, Tx, CTS, RTS) */
233         at91_register_uart(AT91SAM9260_ID_US2, 3, ATMEL_UART_CTS | ATMEL_UART_RTS);
234
235         /* USART4 on ttyS5. (Rx, Tx only) */
236         at91_register_uart(AT91SAM9260_ID_US4, 5, 0);
237
238         /* USART5 on ttyS6. (Rx, Tx only) */
239         at91_register_uart(AT91SAM9260_ID_US5, 6, 0);
240         stamp9g20_board_init();
241         /* USB Host */
242         at91_add_device_usbh(&usbh_data);
243         /* USB Device */
244         at91_add_device_udc(&portuxg20_udc_data);
245         /* Ethernet */
246         at91_add_device_eth(&macb_data);
247         /* I2C */
248         at91_add_device_i2c(NULL, 0);
249         /* SPI */
250         at91_add_device_spi(portuxg20_spi_devices, ARRAY_SIZE(portuxg20_spi_devices));
251         /* LEDs */
252         at91_gpio_leds(portuxg20_leds, ARRAY_SIZE(portuxg20_leds));
253 }
254
255 static void __init stamp9g20evb_board_init(void)
256 {
257         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
258         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
259                                                 | ATMEL_UART_DTR | ATMEL_UART_DSR
260                                                 | ATMEL_UART_DCD | ATMEL_UART_RI);
261         stamp9g20_board_init();
262         /* USB Host */
263         at91_add_device_usbh(&usbh_data);
264         /* USB Device */
265         at91_add_device_udc(&stamp9g20evb_udc_data);
266         /* Ethernet */
267         at91_add_device_eth(&macb_data);
268         /* I2C */
269         at91_add_device_i2c(NULL, 0);
270         /* LEDs */
271         at91_gpio_leds(stamp9g20evb_leds, ARRAY_SIZE(stamp9g20evb_leds));
272 }
273
274 MACHINE_START(PORTUXG20, "taskit PortuxG20")
275         /* Maintainer: taskit GmbH */
276         .init_time      = at91sam926x_pit_init,
277         .map_io         = at91_map_io,
278         .handle_irq     = at91_aic_handle_irq,
279         .init_early     = stamp9g20_init_early,
280         .init_irq       = at91_init_irq_default,
281         .init_machine   = portuxg20_board_init,
282 MACHINE_END
283
284 MACHINE_START(STAMP9G20, "taskit Stamp9G20")
285         /* Maintainer: taskit GmbH */
286         .init_time      = at91sam926x_pit_init,
287         .map_io         = at91_map_io,
288         .handle_irq     = at91_aic_handle_irq,
289         .init_early     = stamp9g20_init_early,
290         .init_irq       = at91_init_irq_default,
291         .init_machine   = stamp9g20evb_board_init,
292 MACHINE_END