Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid
[sfrench/cifs-2.6.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/at91_aic.h>
46 #include <mach/at91sam9_smc.h>
47 #include <mach/at91_shdwc.h>
48 #include <mach/system_rev.h>
49
50 #include "sam9_smc.h"
51 #include "generic.h"
52
53
54 static void __init ek_init_early(void)
55 {
56         /* Initialize processor: 18.432 MHz crystal */
57         at91_initialize(18432000);
58 }
59
60 /*
61  * USB Host port
62  */
63 static struct at91_usbh_data __initdata ek_usbh_data = {
64         .ports          = 2,
65         .vbus_pin       = {-EINVAL, -EINVAL},
66         .overcurrent_pin= {-EINVAL, -EINVAL},
67 };
68
69 /*
70  * USB Device port
71  */
72 static struct at91_udc_data __initdata ek_udc_data = {
73         .vbus_pin       = AT91_PIN_PC5,
74         .pullup_pin     = -EINVAL,              /* pull-up driven by UDC */
75 };
76
77
78 /*
79  * Audio
80  */
81 static struct at73c213_board_info at73c213_data = {
82         .ssc_id         = 0,
83         .shortname      = "AT91SAM9260-EK external DAC",
84 };
85
86 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
87 static void __init at73c213_set_clk(struct at73c213_board_info *info)
88 {
89         struct clk *pck0;
90         struct clk *plla;
91
92         pck0 = clk_get(NULL, "pck0");
93         plla = clk_get(NULL, "plla");
94
95         /* AT73C213 MCK Clock */
96         at91_set_B_periph(AT91_PIN_PC1, 0);     /* PCK0 */
97
98         clk_set_parent(pck0, plla);
99         clk_put(plla);
100
101         info->dac_clk = pck0;
102 }
103 #else
104 static void __init at73c213_set_clk(struct at73c213_board_info *info) {}
105 #endif
106
107 /*
108  * SPI devices.
109  */
110 static struct spi_board_info ek_spi_devices[] = {
111 #if !IS_ENABLED(CONFIG_MMC_ATMELMCI)
112         {       /* DataFlash chip */
113                 .modalias       = "mtd_dataflash",
114                 .chip_select    = 1,
115                 .max_speed_hz   = 15 * 1000 * 1000,
116                 .bus_num        = 0,
117         },
118 #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
119         {       /* DataFlash card */
120                 .modalias       = "mtd_dataflash",
121                 .chip_select    = 0,
122                 .max_speed_hz   = 15 * 1000 * 1000,
123                 .bus_num        = 0,
124         },
125 #endif
126 #endif
127 #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE)
128         {       /* AT73C213 DAC */
129                 .modalias       = "at73c213",
130                 .chip_select    = 0,
131                 .max_speed_hz   = 10 * 1000 * 1000,
132                 .bus_num        = 1,
133                 .mode           = SPI_MODE_1,
134                 .platform_data  = &at73c213_data,
135         },
136 #endif
137 };
138
139
140 /*
141  * MACB Ethernet device
142  */
143 static struct macb_platform_data __initdata ek_macb_data = {
144         .phy_irq_pin    = AT91_PIN_PA7,
145         .is_rmii        = 1,
146 };
147
148
149 /*
150  * NAND flash
151  */
152 static struct mtd_partition __initdata ek_nand_partition[] = {
153         {
154                 .name   = "Partition 1",
155                 .offset = 0,
156                 .size   = SZ_256K,
157         },
158         {
159                 .name   = "Partition 2",
160                 .offset = MTDPART_OFS_NXTBLK,
161                 .size   = MTDPART_SIZ_FULL,
162         },
163 };
164
165 static struct atmel_nand_data __initdata ek_nand_data = {
166         .ale            = 21,
167         .cle            = 22,
168         .det_pin        = -EINVAL,
169         .rdy_pin        = AT91_PIN_PC13,
170         .enable_pin     = AT91_PIN_PC14,
171         .ecc_mode       = NAND_ECC_SOFT,
172         .on_flash_bbt   = 1,
173         .parts          = ek_nand_partition,
174         .num_parts      = ARRAY_SIZE(ek_nand_partition),
175 };
176
177 static struct sam9_smc_config __initdata ek_nand_smc_config = {
178         .ncs_read_setup         = 0,
179         .nrd_setup              = 1,
180         .ncs_write_setup        = 0,
181         .nwe_setup              = 1,
182
183         .ncs_read_pulse         = 3,
184         .nrd_pulse              = 3,
185         .ncs_write_pulse        = 3,
186         .nwe_pulse              = 3,
187
188         .read_cycle             = 5,
189         .write_cycle            = 5,
190
191         .mode                   = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
192         .tdf_cycles             = 2,
193 };
194
195 static void __init ek_add_device_nand(void)
196 {
197         ek_nand_data.bus_width_16 = board_have_nand_16bit();
198         /* setup bus-width (8 or 16) */
199         if (ek_nand_data.bus_width_16)
200                 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
201         else
202                 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
203
204         /* configure chip-select 3 (NAND) */
205         sam9_smc_configure(0, 3, &ek_nand_smc_config);
206
207         at91_add_device_nand(&ek_nand_data);
208 }
209
210
211 /*
212  * MCI (SD/MMC)
213  */
214 static struct mci_platform_data __initdata ek_mci0_data = {
215         .slot[1] = {
216                 .bus_width      = 4,
217                 .detect_pin     = -EINVAL,
218                 .wp_pin         = -EINVAL,
219         },
220 };
221
222
223 /*
224  * LEDs
225  */
226 static struct gpio_led ek_leds[] = {
227         {       /* "bottom" led, green, userled1 to be defined */
228                 .name                   = "ds5",
229                 .gpio                   = AT91_PIN_PA6,
230                 .active_low             = 1,
231                 .default_trigger        = "none",
232         },
233         {       /* "power" led, yellow */
234                 .name                   = "ds1",
235                 .gpio                   = AT91_PIN_PA9,
236                 .default_trigger        = "heartbeat",
237         }
238 };
239
240 /*
241  * I2C devices
242  */
243 static struct at24_platform_data at24c512 = {
244         .byte_len       = SZ_512K / 8,
245         .page_size      = 128,
246         .flags          = AT24_FLAG_ADDR16,
247 };
248
249 static struct i2c_board_info __initdata ek_i2c_devices[] = {
250         {
251                 I2C_BOARD_INFO("24c512", 0x50),
252                 .platform_data = &at24c512,
253         },
254         /* more devices can be added using expansion connectors */
255 };
256
257
258 /*
259  * GPIO Buttons
260  */
261 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
262 static struct gpio_keys_button ek_buttons[] = {
263         {
264                 .gpio           = AT91_PIN_PA30,
265                 .code           = BTN_3,
266                 .desc           = "Button 3",
267                 .active_low     = 1,
268                 .wakeup         = 1,
269         },
270         {
271                 .gpio           = AT91_PIN_PA31,
272                 .code           = BTN_4,
273                 .desc           = "Button 4",
274                 .active_low     = 1,
275                 .wakeup         = 1,
276         }
277 };
278
279 static struct gpio_keys_platform_data ek_button_data = {
280         .buttons        = ek_buttons,
281         .nbuttons       = ARRAY_SIZE(ek_buttons),
282 };
283
284 static struct platform_device ek_button_device = {
285         .name           = "gpio-keys",
286         .id             = -1,
287         .num_resources  = 0,
288         .dev            = {
289                 .platform_data  = &ek_button_data,
290         }
291 };
292
293 static void __init ek_add_device_buttons(void)
294 {
295         at91_set_gpio_input(AT91_PIN_PA30, 1);  /* btn3 */
296         at91_set_deglitch(AT91_PIN_PA30, 1);
297         at91_set_gpio_input(AT91_PIN_PA31, 1);  /* btn4 */
298         at91_set_deglitch(AT91_PIN_PA31, 1);
299
300         platform_device_register(&ek_button_device);
301 }
302 #else
303 static void __init ek_add_device_buttons(void) {}
304 #endif
305
306
307 static void __init ek_board_init(void)
308 {
309         /* Serial */
310         /* DBGU on ttyS0. (Rx & Tx only) */
311         at91_register_uart(0, 0, 0);
312
313         /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */
314         at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
315                            | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
316                            | ATMEL_UART_RI);
317
318         /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */
319         at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
320         at91_add_device_serial();
321         /* USB Host */
322         at91_add_device_usbh(&ek_usbh_data);
323         /* USB Device */
324         at91_add_device_udc(&ek_udc_data);
325         /* SPI */
326         at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
327         /* NAND */
328         ek_add_device_nand();
329         /* Ethernet */
330         at91_add_device_eth(&ek_macb_data);
331         /* MMC */
332         at91_add_device_mci(0, &ek_mci0_data);
333         /* I2C */
334         at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
335         /* SSC (to AT73C213) */
336         at73c213_set_clk(&at73c213_data);
337         at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
338         /* LEDs */
339         at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
340         /* Push Buttons */
341         ek_add_device_buttons();
342 }
343
344 MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-EK")
345         /* Maintainer: Atmel */
346         .timer          = &at91sam926x_timer,
347         .map_io         = at91_map_io,
348         .handle_irq     = at91_aic_handle_irq,
349         .init_early     = ek_init_early,
350         .init_irq       = at91_init_irq_default,
351         .init_machine   = ek_board_init,
352 MACHINE_END