Merge branch 'idle-release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb...
[pandora-kernel.git] / arch / arm / mach-at91 / board-sam9260ek.c
1 /*
2  * linux/arch/arm/mach-at91/board-sam9260ek.c
3  *
4  *  Copyright (C) 2005 SAN People
5  *  Copyright (C) 2006 Atmel
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation; either version 2 of the License, or
10  * (at your option) any later version.
11  *
12  * This program is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15  * GNU General Public License for more details.
16  *
17  * You should have received a copy of the GNU General Public License
18  * along with this program; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
20  */
21
22 #include <linux/types.h>
23 #include <linux/init.h>
24 #include <linux/mm.h>
25 #include <linux/module.h>
26 #include <linux/platform_device.h>
27 #include <linux/spi/spi.h>
28 #include <linux/spi/at73c213.h>
29 #include <linux/clk.h>
30 #include <linux/i2c/at24.h>
31 #include <linux/gpio_keys.h>
32 #include <linux/input.h>
33
34 #include <asm/setup.h>
35 #include <asm/mach-types.h>
36 #include <asm/irq.h>
37
38 #include <asm/mach/arch.h>
39 #include <asm/mach/map.h>
40 #include <asm/mach/irq.h>
41
42 #include <mach/hardware.h>
43 #include <mach/board.h>
44 #include <mach/gpio.h>
45 #include <mach/at91sam9_smc.h>
46 #include <mach/at91_shdwc.h>
47
48 #include "sam9_smc.h"
49 #include "generic.h"
50
51
52 static void __init ek_map_io(void)
53 {
54         /* Initialize processor: 18.432 MHz crystal */
55         at91sam9260_initialize(18432000);
56
57         /* DBGU on ttyS0. (Rx & Tx only) */
58         at91_register_uart(0, 0, 0);
59
60         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
61         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
62                            | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
63                            | ATMEL_UART_RI);
64
65         /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
66         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
67
68         /* set serial console to ttyS0 (ie, DBGU) */
69         at91_set_serial_console(0);
70 }
71
72 static void __init ek_init_irq(void)
73 {
74         at91sam9260_init_interrupts(NULL);
75 }
76
77
78 /*
79  * USB Host port
80  */
81 static struct at91_usbh_data __initdata ek_usbh_data = {
82         .ports          = 2,
83 };
84
85 /*
86  * USB Device port
87  */
88 static struct at91_udc_data __initdata ek_udc_data = {
89         .vbus_pin       = AT91_PIN_PC5,
90         .pullup_pin     = 0,            /* pull-up driven by UDC */
91 };
92
93
94 /*
95  * Audio
96  */
97 static struct at73c213_board_info at73c213_data = {
98         .ssc_id         = 0,
99         .shortname      = "AT91SAM9260-EK external DAC",
100 };
101
102 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
103 static void __init at73c213_set_clk(struct at73c213_board_info *info)
104 {
105         struct clk *pck0;
106         struct clk *plla;
107
108         pck0 = clk_get(NULL, "pck0");
109         plla = clk_get(NULL, "plla");
110
111         /* AT73C213 MCK Clock */
112         at91_set_B_periph(AT91_PIN_PC1, 0);     /* PCK0 */
113
114         clk_set_parent(pck0, plla);
115         clk_put(plla);
116
117         info->dac_clk = pck0;
118 }
119 #else
120 static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
121 #endif
122
123 /*
124  * SPI devices.
125  */
126 static struct spi_board_info ek_spi_devices[] = {
127 #if !defined(CONFIG_MMC_AT91)
128         {       /* DataFlash chip */
129                 .modalias       = "mtd_dataflash",
130                 .chip_select    = 1,
131                 .max_speed_hz   = 15 * 1000 * 1000,
132                 .bus_num        = 0,
133         },
134 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
135         {       /* DataFlash card */
136                 .modalias       = "mtd_dataflash",
137                 .chip_select    = 0,
138                 .max_speed_hz   = 15 * 1000 * 1000,
139                 .bus_num        = 0,
140         },
141 #endif
142 #endif
143 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
144         {       /* AT73C213 DAC */
145                 .modalias       = "at73c213",
146                 .chip_select    = 0,
147                 .max_speed_hz   = 10 * 1000 * 1000,
148                 .bus_num        = 1,
149                 .mode           = SPI_MODE_1,
150                 .platform_data  = &at73c213_data,
151         },
152 #endif
153 };
154
155
156 /*
157  * MACB Ethernet device
158  */
159 static struct at91_eth_data __initdata ek_macb_data = {
160         .phy_irq_pin    = AT91_PIN_PA7,
161         .is_rmii        = 1,
162 };
163
164
165 /*
166  * NAND flash
167  */
168 static struct mtd_partition __initdata ek_nand_partition[] = {
169         {
170                 .name   = "Partition 1",
171                 .offset = 0,
172                 .size   = SZ_256K,
173         },
174         {
175                 .name   = "Partition 2",
176                 .offset = MTDPART_OFS_NXTBLK,
177                 .size   = MTDPART_SIZ_FULL,
178         },
179 };
180
181 static struct mtd_partition * __init nand_partitions(int size, int *num_partitions)
182 {
183         *num_partitions = ARRAY_SIZE(ek_nand_partition);
184         return ek_nand_partition;
185 }
186
187 static struct atmel_nand_data __initdata ek_nand_data = {
188         .ale            = 21,
189         .cle            = 22,
190 //      .det_pin        = ... not connected
191         .rdy_pin        = AT91_PIN_PC13,
192         .enable_pin     = AT91_PIN_PC14,
193         .partition_info = nand_partitions,
194 #if defined(CONFIG_MTD_NAND_ATMEL_BUSWIDTH_16)
195         .bus_width_16   = 1,
196 #else
197         .bus_width_16   = 0,
198 #endif
199 };
200
201 static struct sam9_smc_config __initdata ek_nand_smc_config = {
202         .ncs_read_setup         = 0,
203         .nrd_setup              = 1,
204         .ncs_write_setup        = 0,
205         .nwe_setup              = 1,
206
207         .ncs_read_pulse         = 3,
208         .nrd_pulse              = 3,
209         .ncs_write_pulse        = 3,
210         .nwe_pulse              = 3,
211
212         .read_cycle             = 5,
213         .write_cycle            = 5,
214
215         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
216         .tdf_cycles             = 2,
217 };
218
219 static void __init ek_add_device_nand(void)
220 {
221         /* setup bus-width (8 or 16) */
222         if (ek_nand_data.bus_width_16)
223                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
224         else
225                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
226
227         /* configure chip-select 3 (NAND) */
228         sam9_smc_configure(3, &ek_nand_smc_config);
229
230         at91_add_device_nand(&ek_nand_data);
231 }
232
233
234 /*
235  * MCI (SD/MMC)
236  */
237 static struct at91_mmc_data __initdata ek_mmc_data = {
238         .slot_b         = 1,
239         .wire4          = 1,
240 //      .det_pin        = ... not connected
241 //      .wp_pin         = ... not connected
242 //      .vcc_pin        = ... not connected
243 };
244
245
246 /*
247  * LEDs
248  */
249 static struct gpio_led ek_leds[] = {
250         {       /* "bottom" led, green, userled1 to be defined */
251                 .name                   = "ds5",
252                 .gpio                   = AT91_PIN_PA6,
253                 .active_low             = 1,
254                 .default_trigger        = "none",
255         },
256         {       /* "power" led, yellow */
257                 .name                   = "ds1",
258                 .gpio                   = AT91_PIN_PA9,
259                 .default_trigger        = "heartbeat",
260         }
261 };
262
263 /*
264  * I2C devices
265  */
266 static struct at24_platform_data at24c512 = {
267         .byte_len       = SZ_512K / 8,
268         .page_size      = 128,
269         .flags          = AT24_FLAG_ADDR16,
270 };
271
272 static struct i2c_board_info __initdata ek_i2c_devices[] = {
273         {
274                 I2C_BOARD_INFO("24c512", 0x50),
275                 .platform_data = &at24c512,
276         },
277         /* more devices can be added using expansion connectors */
278 };
279
280
281 /*
282  * GPIO Buttons
283  */
284 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
285 static struct gpio_keys_button ek_buttons[] = {
286         {
287                 .gpio           = AT91_PIN_PA30,
288                 .code           = BTN_3,
289                 .desc           = "Button 3",
290                 .active_low     = 1,
291                 .wakeup         = 1,
292         },
293         {
294                 .gpio           = AT91_PIN_PA31,
295                 .code           = BTN_4,
296                 .desc           = "Button 4",
297                 .active_low     = 1,
298                 .wakeup         = 1,
299         }
300 };
301
302 static struct gpio_keys_platform_data ek_button_data = {
303         .buttons        = ek_buttons,
304         .nbuttons       = ARRAY_SIZE(ek_buttons),
305 };
306
307 static struct platform_device ek_button_device = {
308         .name           = "gpio-keys",
309         .id             = -1,
310         .num_resources  = 0,
311         .dev            = {
312                 .platform_data  = &ek_button_data,
313         }
314 };
315
316 static void __init ek_add_device_buttons(void)
317 {
318         at91_set_gpio_input(AT91_PIN_PA30, 1);  /* btn3 */
319         at91_set_deglitch(AT91_PIN_PA30, 1);
320         at91_set_gpio_input(AT91_PIN_PA31, 1);  /* btn4 */
321         at91_set_deglitch(AT91_PIN_PA31, 1);
322
323         platform_device_register(&ek_button_device);
324 }
325 #else
326 static void __init ek_add_device_buttons(void) {}
327 #endif
328
329
330 static void __init ek_board_init(void)
331 {
332         /* Serial */
333         at91_add_device_serial();
334         /* USB Host */
335         at91_add_device_usbh(&ek_usbh_data);
336         /* USB Device */
337         at91_add_device_udc(&ek_udc_data);
338         /* SPI */
339         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
340         /* NAND */
341         ek_add_device_nand();
342         /* Ethernet */
343         at91_add_device_eth(&ek_macb_data);
344         /* MMC */
345         at91_add_device_mmc(0, &ek_mmc_data);
346         /* I2C */
347         at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
348         /* SSC (to AT73C213) */
349         at73c213_set_clk(&at73c213_data);
350         at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
351         /* LEDs */
352         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
353         /* Push Buttons */
354         ek_add_device_buttons();
355 }
356
357 MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-EK")
358         /* Maintainer: Atmel */
359         .boot_params    = AT91_SDRAM_BASE + 0x100,
360         .timer          = &at91sam926x_timer,
361         .map_io         = ek_map_io,
362         .init_irq       = ek_init_irq,
363         .init_machine   = ek_board_init,
364 MACHINE_END