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[karo-tx-linux.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/gpio.h>
24 #include <linux/init.h>
25 #include <linux/mm.h>
26 #include <linux/module.h>
27 #include <linux/platform_device.h>
28 #include <linux/spi/spi.h>
29 #include <linux/spi/at73c213.h>
30 #include <linux/clk.h>
31 #include <linux/i2c/at24.h>
32 #include <linux/gpio_keys.h>
33 #include <linux/input.h>
34
35 #include <asm/setup.h>
36 #include <asm/mach-types.h>
37 #include <asm/irq.h>
38
39 #include <asm/mach/arch.h>
40 #include <asm/mach/map.h>
41 #include <asm/mach/irq.h>
42
43 #include <mach/hardware.h>
44 #include <mach/board.h>
45 #include <mach/at91sam9_smc.h>
46 #include <mach/at91_shdwc.h>
47 #include <mach/system_rev.h>
48
49 #include "sam9_smc.h"
50 #include "generic.h"
51
52
53 static void __init ek_init_early(void)
54 {
55         /* Initialize processor: 18.432 MHz crystal */
56         at91_initialize(18432000);
57 }
58
59 /*
60  * USB Host port
61  */
62 static struct at91_usbh_data __initdata ek_usbh_data = {
63         .ports          = 2,
64         .vbus_pin       = {-EINVAL, -EINVAL},
65         .overcurrent_pin= {-EINVAL, -EINVAL},
66 };
67
68 /*
69  * USB Device port
70  */
71 static struct at91_udc_data __initdata ek_udc_data = {
72         .vbus_pin       = AT91_PIN_PC5,
73         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
74 };
75
76
77 /*
78  * Audio
79  */
80 static struct at73c213_board_info at73c213_data = {
81         .ssc_id         = 0,
82         .shortname      = "AT91SAM9260-EK external DAC",
83 };
84
85 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
86 static void __init at73c213_set_clk(struct at73c213_board_info *info)
87 {
88         struct clk *pck0;
89         struct clk *plla;
90
91         pck0 = clk_get(NULL, "pck0");
92         plla = clk_get(NULL, "plla");
93
94         /* AT73C213 MCK Clock */
95         at91_set_B_periph(AT91_PIN_PC1, 0);     /* PCK0 */
96
97         clk_set_parent(pck0, plla);
98         clk_put(plla);
99
100         info->dac_clk = pck0;
101 }
102 #else
103 static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
104 #endif
105
106 /*
107  * SPI devices.
108  */
109 static struct spi_board_info ek_spi_devices[] = {
110 #if !defined(CONFIG_MMC_AT91)
111         {       /* DataFlash chip */
112                 .modalias       = "mtd_dataflash",
113                 .chip_select    = 1,
114                 .max_speed_hz   = 15 * 1000 * 1000,
115                 .bus_num        = 0,
116         },
117 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
118         {       /* DataFlash card */
119                 .modalias       = "mtd_dataflash",
120                 .chip_select    = 0,
121                 .max_speed_hz   = 15 * 1000 * 1000,
122                 .bus_num        = 0,
123         },
124 #endif
125 #endif
126 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
127         {       /* AT73C213 DAC */
128                 .modalias       = "at73c213",
129                 .chip_select    = 0,
130                 .max_speed_hz   = 10 * 1000 * 1000,
131                 .bus_num        = 1,
132                 .mode           = SPI_MODE_1,
133                 .platform_data  = &at73c213_data,
134         },
135 #endif
136 };
137
138
139 /*
140  * MACB Ethernet device
141  */
142 static struct macb_platform_data __initdata ek_macb_data = {
143         .phy_irq_pin    = AT91_PIN_PA7,
144         .is_rmii        = 1,
145 };
146
147
148 /*
149  * NAND flash
150  */
151 static struct mtd_partition __initdata ek_nand_partition[] = {
152         {
153                 .name   = "Partition 1",
154                 .offset = 0,
155                 .size   = SZ_256K,
156         },
157         {
158                 .name   = "Partition 2",
159                 .offset = MTDPART_OFS_NXTBLK,
160                 .size   = MTDPART_SIZ_FULL,
161         },
162 };
163
164 static struct atmel_nand_data __initdata ek_nand_data = {
165         .ale            = 21,
166         .cle            = 22,
167         .det_pin        = -EINVAL,
168         .rdy_pin        = AT91_PIN_PC13,
169         .enable_pin     = AT91_PIN_PC14,
170         .ecc_mode       = NAND_ECC_SOFT,
171         .on_flash_bbt   = 1,
172         .parts          = ek_nand_partition,
173         .num_parts      = ARRAY_SIZE(ek_nand_partition),
174 };
175
176 static struct sam9_smc_config __initdata ek_nand_smc_config = {
177         .ncs_read_setup         = 0,
178         .nrd_setup              = 1,
179         .ncs_write_setup        = 0,
180         .nwe_setup              = 1,
181
182         .ncs_read_pulse         = 3,
183         .nrd_pulse              = 3,
184         .ncs_write_pulse        = 3,
185         .nwe_pulse              = 3,
186
187         .read_cycle             = 5,
188         .write_cycle            = 5,
189
190         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
191         .tdf_cycles             = 2,
192 };
193
194 static void __init ek_add_device_nand(void)
195 {
196         ek_nand_data.bus_width_16 = board_have_nand_16bit();
197         /* setup bus-width (8 or 16) */
198         if (ek_nand_data.bus_width_16)
199                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
200         else
201                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
202
203         /* configure chip-select 3 (NAND) */
204         sam9_smc_configure(0, 3, &ek_nand_smc_config);
205
206         at91_add_device_nand(&ek_nand_data);
207 }
208
209
210 /*
211  * MCI (SD/MMC)
212  */
213 static struct at91_mmc_data __initdata ek_mmc_data = {
214         .slot_b         = 1,
215         .wire4          = 1,
216         .det_pin        = -EINVAL,
217         .wp_pin         = -EINVAL,
218         .vcc_pin        = -EINVAL,
219 };
220
221
222 /*
223  * LEDs
224  */
225 static struct gpio_led ek_leds[] = {
226         {       /* "bottom" led, green, userled1 to be defined */
227                 .name                   = "ds5",
228                 .gpio                   = AT91_PIN_PA6,
229                 .active_low             = 1,
230                 .default_trigger        = "none",
231         },
232         {       /* "power" led, yellow */
233                 .name                   = "ds1",
234                 .gpio                   = AT91_PIN_PA9,
235                 .default_trigger        = "heartbeat",
236         }
237 };
238
239 /*
240  * I2C devices
241  */
242 static struct at24_platform_data at24c512 = {
243         .byte_len       = SZ_512K / 8,
244         .page_size      = 128,
245         .flags          = AT24_FLAG_ADDR16,
246 };
247
248 static struct i2c_board_info __initdata ek_i2c_devices[] = {
249         {
250                 I2C_BOARD_INFO("24c512", 0x50),
251                 .platform_data = &at24c512,
252         },
253         /* more devices can be added using expansion connectors */
254 };
255
256
257 /*
258  * GPIO Buttons
259  */
260 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
261 static struct gpio_keys_button ek_buttons[] = {
262         {
263                 .gpio           = AT91_PIN_PA30,
264                 .code           = BTN_3,
265                 .desc           = "Button 3",
266                 .active_low     = 1,
267                 .wakeup         = 1,
268         },
269         {
270                 .gpio           = AT91_PIN_PA31,
271                 .code           = BTN_4,
272                 .desc           = "Button 4",
273                 .active_low     = 1,
274                 .wakeup         = 1,
275         }
276 };
277
278 static struct gpio_keys_platform_data ek_button_data = {
279         .buttons        = ek_buttons,
280         .nbuttons       = ARRAY_SIZE(ek_buttons),
281 };
282
283 static struct platform_device ek_button_device = {
284         .name           = "gpio-keys",
285         .id             = -1,
286         .num_resources  = 0,
287         .dev            = {
288                 .platform_data  = &ek_button_data,
289         }
290 };
291
292 static void __init ek_add_device_buttons(void)
293 {
294         at91_set_gpio_input(AT91_PIN_PA30, 1);  /* btn3 */
295         at91_set_deglitch(AT91_PIN_PA30, 1);
296         at91_set_gpio_input(AT91_PIN_PA31, 1);  /* btn4 */
297         at91_set_deglitch(AT91_PIN_PA31, 1);
298
299         platform_device_register(&ek_button_device);
300 }
301 #else
302 static void __init ek_add_device_buttons(void) {}
303 #endif
304
305
306 static void __init ek_board_init(void)
307 {
308         /* Serial */
309         /* DBGU on ttyS0. (Rx & Tx only) */
310         at91_register_uart(0, 0, 0);
311
312         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
313         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
314                            | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
315                            | ATMEL_UART_RI);
316
317         /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
318         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
319         at91_add_device_serial();
320         /* USB Host */
321         at91_add_device_usbh(&ek_usbh_data);
322         /* USB Device */
323         at91_add_device_udc(&ek_udc_data);
324         /* SPI */
325         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
326         /* NAND */
327         ek_add_device_nand();
328         /* Ethernet */
329         at91_add_device_eth(&ek_macb_data);
330         /* MMC */
331         at91_add_device_mmc(0, &ek_mmc_data);
332         /* I2C */
333         at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
334         /* SSC (to AT73C213) */
335         at73c213_set_clk(&at73c213_data);
336         at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
337         /* LEDs */
338         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
339         /* Push Buttons */
340         ek_add_device_buttons();
341 }
342
343 MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-EK")
344         /* Maintainer: Atmel */
345         .timer          = &at91sam926x_timer,
346         .map_io         = at91_map_io,
347         .init_early     = ek_init_early,
348         .init_irq       = at91_init_irq_default,
349         .init_machine   = ek_board_init,
350 MACHINE_END