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b85a8914 | 1 | /* |
d0760b3b | 2 | * linux/arch/arm/mach-at91/board-sam9260ek.c |
b85a8914 AV |
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> | |
2f8163ba | 23 | #include <linux/gpio.h> |
b85a8914 AV |
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> | |
5e9df924 AV |
29 | #include <linux/spi/at73c213.h> |
30 | #include <linux/clk.h> | |
a745a622 | 31 | #include <linux/i2c/at24.h> |
2e9f12d6 AV |
32 | #include <linux/gpio_keys.h> |
33 | #include <linux/input.h> | |
b85a8914 | 34 | |
b85a8914 AV |
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 | ||
e505240b | 43 | #include <mach/hardware.h> |
a09e64fb | 44 | #include <mach/board.h> |
8cdae51a AV |
45 | #include <mach/at91sam9_smc.h> |
46 | #include <mach/at91_shdwc.h> | |
76b2ab76 | 47 | #include <mach/system_rev.h> |
b85a8914 | 48 | |
8cdae51a | 49 | #include "sam9_smc.h" |
b85a8914 AV |
50 | #include "generic.h" |
51 | ||
52 | ||
1b021a3b | 53 | static void __init ek_init_early(void) |
b85a8914 AV |
54 | { |
55 | /* Initialize processor: 18.432 MHz crystal */ | |
21d08b9d | 56 | at91_initialize(18432000); |
b85a8914 | 57 | |
4f37940d | 58 | /* DBGU on ttyS0. (Rx & Tx only) */ |
a3da1222 AV |
59 | at91_register_uart(0, 0, 0); |
60 | ||
61 | /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */ | |
62 | at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS | |
63 | | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD | |
64 | | ATMEL_UART_RI); | |
65 | ||
66 | /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */ | |
67 | at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS); | |
68 | ||
69 | /* set serial console to ttyS0 (ie, DBGU) */ | |
70 | at91_set_serial_console(0); | |
b85a8914 AV |
71 | } |
72 | ||
b85a8914 AV |
73 | /* |
74 | * USB Host port | |
75 | */ | |
76 | static struct at91_usbh_data __initdata ek_usbh_data = { | |
77 | .ports = 2, | |
78 | }; | |
79 | ||
80 | /* | |
81 | * USB Device port | |
82 | */ | |
83 | static struct at91_udc_data __initdata ek_udc_data = { | |
84 | .vbus_pin = AT91_PIN_PC5, | |
85 | .pullup_pin = 0, /* pull-up driven by UDC */ | |
86 | }; | |
87 | ||
88 | ||
5e9df924 AV |
89 | /* |
90 | * Audio | |
91 | */ | |
92 | static struct at73c213_board_info at73c213_data = { | |
93 | .ssc_id = 0, | |
94 | .shortname = "AT91SAM9260-EK external DAC", | |
95 | }; | |
96 | ||
97 | #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE) | |
98 | static void __init at73c213_set_clk(struct at73c213_board_info *info) | |
99 | { | |
100 | struct clk *pck0; | |
101 | struct clk *plla; | |
102 | ||
103 | pck0 = clk_get(NULL, "pck0"); | |
104 | plla = clk_get(NULL, "plla"); | |
105 | ||
106 | /* AT73C213 MCK Clock */ | |
107 | at91_set_B_periph(AT91_PIN_PC1, 0); /* PCK0 */ | |
108 | ||
109 | clk_set_parent(pck0, plla); | |
110 | clk_put(plla); | |
111 | ||
112 | info->dac_clk = pck0; | |
113 | } | |
114 | #else | |
115 | static void __init at73c213_set_clk(struct at73c213_board_info *info) {} | |
116 | #endif | |
117 | ||
b85a8914 AV |
118 | /* |
119 | * SPI devices. | |
120 | */ | |
121 | static struct spi_board_info ek_spi_devices[] = { | |
122 | #if !defined(CONFIG_MMC_AT91) | |
123 | { /* DataFlash chip */ | |
124 | .modalias = "mtd_dataflash", | |
125 | .chip_select = 1, | |
126 | .max_speed_hz = 15 * 1000 * 1000, | |
127 | .bus_num = 0, | |
128 | }, | |
129 | #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD) | |
130 | { /* DataFlash card */ | |
131 | .modalias = "mtd_dataflash", | |
132 | .chip_select = 0, | |
133 | .max_speed_hz = 15 * 1000 * 1000, | |
134 | .bus_num = 0, | |
135 | }, | |
136 | #endif | |
137 | #endif | |
93afa752 | 138 | #if defined(CONFIG_SND_AT73C213) || defined(CONFIG_SND_AT73C213_MODULE) |
b85a8914 | 139 | { /* AT73C213 DAC */ |
93afa752 | 140 | .modalias = "at73c213", |
b85a8914 AV |
141 | .chip_select = 0, |
142 | .max_speed_hz = 10 * 1000 * 1000, | |
143 | .bus_num = 1, | |
5e9df924 AV |
144 | .mode = SPI_MODE_1, |
145 | .platform_data = &at73c213_data, | |
b85a8914 AV |
146 | }, |
147 | #endif | |
148 | }; | |
149 | ||
150 | ||
151 | /* | |
152 | * MACB Ethernet device | |
153 | */ | |
3e18c8dd | 154 | static struct at91_eth_data __initdata ek_macb_data = { |
44853a81 | 155 | .phy_irq_pin = AT91_PIN_PA7, |
b85a8914 AV |
156 | .is_rmii = 1, |
157 | }; | |
158 | ||
159 | ||
160 | /* | |
161 | * NAND flash | |
162 | */ | |
163 | static struct mtd_partition __initdata ek_nand_partition[] = { | |
164 | { | |
165 | .name = "Partition 1", | |
166 | .offset = 0, | |
e505240b | 167 | .size = SZ_256K, |
b85a8914 AV |
168 | }, |
169 | { | |
170 | .name = "Partition 2", | |
e505240b | 171 | .offset = MTDPART_OFS_NXTBLK, |
b85a8914 AV |
172 | .size = MTDPART_SIZ_FULL, |
173 | }, | |
174 | }; | |
175 | ||
3e18c8dd | 176 | static struct mtd_partition * __init nand_partitions(int size, int *num_partitions) |
b85a8914 AV |
177 | { |
178 | *num_partitions = ARRAY_SIZE(ek_nand_partition); | |
179 | return ek_nand_partition; | |
180 | } | |
181 | ||
3c3796cc | 182 | static struct atmel_nand_data __initdata ek_nand_data = { |
b85a8914 AV |
183 | .ale = 21, |
184 | .cle = 22, | |
185 | // .det_pin = ... not connected | |
186 | .rdy_pin = AT91_PIN_PC13, | |
187 | .enable_pin = AT91_PIN_PC14, | |
188 | .partition_info = nand_partitions, | |
b85a8914 AV |
189 | }; |
190 | ||
8cdae51a AV |
191 | static struct sam9_smc_config __initdata ek_nand_smc_config = { |
192 | .ncs_read_setup = 0, | |
193 | .nrd_setup = 1, | |
194 | .ncs_write_setup = 0, | |
195 | .nwe_setup = 1, | |
196 | ||
197 | .ncs_read_pulse = 3, | |
198 | .nrd_pulse = 3, | |
199 | .ncs_write_pulse = 3, | |
200 | .nwe_pulse = 3, | |
201 | ||
202 | .read_cycle = 5, | |
203 | .write_cycle = 5, | |
204 | ||
205 | .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE, | |
206 | .tdf_cycles = 2, | |
207 | }; | |
208 | ||
209 | static void __init ek_add_device_nand(void) | |
210 | { | |
64393b3a | 211 | ek_nand_data.bus_width_16 = board_have_nand_16bit(); |
8cdae51a AV |
212 | /* setup bus-width (8 or 16) */ |
213 | if (ek_nand_data.bus_width_16) | |
214 | ek_nand_smc_config.mode |= AT91_SMC_DBW_16; | |
215 | else | |
216 | ek_nand_smc_config.mode |= AT91_SMC_DBW_8; | |
217 | ||
218 | /* configure chip-select 3 (NAND) */ | |
219 | sam9_smc_configure(3, &ek_nand_smc_config); | |
220 | ||
221 | at91_add_device_nand(&ek_nand_data); | |
222 | } | |
223 | ||
b85a8914 AV |
224 | |
225 | /* | |
226 | * MCI (SD/MMC) | |
227 | */ | |
228 | static struct at91_mmc_data __initdata ek_mmc_data = { | |
229 | .slot_b = 1, | |
230 | .wire4 = 1, | |
231 | // .det_pin = ... not connected | |
232 | // .wp_pin = ... not connected | |
233 | // .vcc_pin = ... not connected | |
234 | }; | |
235 | ||
5b7659d1 AV |
236 | |
237 | /* | |
238 | * LEDs | |
239 | */ | |
240 | static struct gpio_led ek_leds[] = { | |
241 | { /* "bottom" led, green, userled1 to be defined */ | |
242 | .name = "ds5", | |
243 | .gpio = AT91_PIN_PA6, | |
244 | .active_low = 1, | |
245 | .default_trigger = "none", | |
246 | }, | |
247 | { /* "power" led, yellow */ | |
248 | .name = "ds1", | |
249 | .gpio = AT91_PIN_PA9, | |
250 | .default_trigger = "heartbeat", | |
251 | } | |
252 | }; | |
253 | ||
a745a622 DB |
254 | /* |
255 | * I2C devices | |
256 | */ | |
257 | static struct at24_platform_data at24c512 = { | |
258 | .byte_len = SZ_512K / 8, | |
259 | .page_size = 128, | |
260 | .flags = AT24_FLAG_ADDR16, | |
261 | }; | |
262 | ||
263 | static struct i2c_board_info __initdata ek_i2c_devices[] = { | |
264 | { | |
265 | I2C_BOARD_INFO("24c512", 0x50), | |
266 | .platform_data = &at24c512, | |
267 | }, | |
268 | /* more devices can be added using expansion connectors */ | |
269 | }; | |
270 | ||
2e9f12d6 AV |
271 | |
272 | /* | |
273 | * GPIO Buttons | |
274 | */ | |
275 | #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) | |
276 | static struct gpio_keys_button ek_buttons[] = { | |
277 | { | |
278 | .gpio = AT91_PIN_PA30, | |
279 | .code = BTN_3, | |
280 | .desc = "Button 3", | |
281 | .active_low = 1, | |
282 | .wakeup = 1, | |
283 | }, | |
284 | { | |
285 | .gpio = AT91_PIN_PA31, | |
286 | .code = BTN_4, | |
287 | .desc = "Button 4", | |
288 | .active_low = 1, | |
289 | .wakeup = 1, | |
290 | } | |
291 | }; | |
292 | ||
293 | static struct gpio_keys_platform_data ek_button_data = { | |
294 | .buttons = ek_buttons, | |
295 | .nbuttons = ARRAY_SIZE(ek_buttons), | |
296 | }; | |
297 | ||
298 | static struct platform_device ek_button_device = { | |
299 | .name = "gpio-keys", | |
300 | .id = -1, | |
301 | .num_resources = 0, | |
302 | .dev = { | |
303 | .platform_data = &ek_button_data, | |
304 | } | |
305 | }; | |
306 | ||
307 | static void __init ek_add_device_buttons(void) | |
308 | { | |
309 | at91_set_gpio_input(AT91_PIN_PA30, 1); /* btn3 */ | |
310 | at91_set_deglitch(AT91_PIN_PA30, 1); | |
311 | at91_set_gpio_input(AT91_PIN_PA31, 1); /* btn4 */ | |
312 | at91_set_deglitch(AT91_PIN_PA31, 1); | |
313 | ||
314 | platform_device_register(&ek_button_device); | |
315 | } | |
316 | #else | |
317 | static void __init ek_add_device_buttons(void) {} | |
318 | #endif | |
319 | ||
320 | ||
b85a8914 AV |
321 | static void __init ek_board_init(void) |
322 | { | |
323 | /* Serial */ | |
324 | at91_add_device_serial(); | |
325 | /* USB Host */ | |
326 | at91_add_device_usbh(&ek_usbh_data); | |
327 | /* USB Device */ | |
328 | at91_add_device_udc(&ek_udc_data); | |
329 | /* SPI */ | |
330 | at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices)); | |
331 | /* NAND */ | |
8cdae51a | 332 | ek_add_device_nand(); |
b85a8914 AV |
333 | /* Ethernet */ |
334 | at91_add_device_eth(&ek_macb_data); | |
335 | /* MMC */ | |
d0760b3b | 336 | at91_add_device_mmc(0, &ek_mmc_data); |
93afa752 | 337 | /* I2C */ |
a745a622 | 338 | at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices)); |
5e9df924 AV |
339 | /* SSC (to AT73C213) */ |
340 | at73c213_set_clk(&at73c213_data); | |
341 | at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX); | |
5b7659d1 AV |
342 | /* LEDs */ |
343 | at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds)); | |
2e9f12d6 AV |
344 | /* Push Buttons */ |
345 | ek_add_device_buttons(); | |
b85a8914 AV |
346 | } |
347 | ||
348 | MACHINE_START(AT91SAM9260EK, "Atmel AT91SAM9260-EK") | |
349 | /* Maintainer: Atmel */ | |
b85a8914 | 350 | .timer = &at91sam926x_timer, |
21d08b9d | 351 | .map_io = at91_map_io, |
1b021a3b | 352 | .init_early = ek_init_early, |
92100c12 | 353 | .init_irq = at91_init_irq_default, |
b85a8914 AV |
354 | .init_machine = ek_board_init, |
355 | MACHINE_END |