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61352667 | 1 | /* |
2 | * Copyright (C) 2005 SAN People | |
3 | * Copyright (C) 2008 Atmel | |
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/types.h> | |
2f8163ba | 21 | #include <linux/gpio.h> |
61352667 | 22 | #include <linux/init.h> |
23 | #include <linux/mm.h> | |
24 | #include <linux/module.h> | |
25 | #include <linux/platform_device.h> | |
26 | #include <linux/spi/spi.h> | |
27 | #include <linux/spi/at73c213.h> | |
59c5fe6d NF |
28 | #include <linux/gpio_keys.h> |
29 | #include <linux/input.h> | |
61352667 | 30 | #include <linux/clk.h> |
5e886f68 DES |
31 | #include <linux/regulator/machine.h> |
32 | #include <linux/regulator/fixed.h> | |
33 | #include <linux/regulator/consumer.h> | |
61352667 | 34 | |
67b5d7b3 MR |
35 | #include <linux/platform_data/at91_adc.h> |
36 | ||
a09e64fb | 37 | #include <mach/hardware.h> |
61352667 | 38 | #include <asm/setup.h> |
39 | #include <asm/mach-types.h> | |
40 | #include <asm/irq.h> | |
41 | ||
42 | #include <asm/mach/arch.h> | |
43 | #include <asm/mach/map.h> | |
44 | #include <asm/mach/irq.h> | |
45 | ||
8cdae51a | 46 | #include <mach/at91sam9_smc.h> |
76b2ab76 | 47 | #include <mach/system_rev.h> |
61352667 | 48 | |
a510b9ba | 49 | #include "at91_aic.h" |
43d2f532 | 50 | #include "board.h" |
8cdae51a | 51 | #include "sam9_smc.h" |
61352667 | 52 | #include "generic.h" |
cf2e933c | 53 | #include "gpio.h" |
61352667 | 54 | |
a6e016f1 JCPV |
55 | /* |
56 | * board revision encoding | |
57 | * bit 0: | |
58 | * 0 => 1 sd/mmc slot | |
59 | * 1 => 2 sd/mmc slots connectors (board from revision C) | |
60 | */ | |
61 | #define HAVE_2MMC (1 << 0) | |
62 | static int inline ek_have_2mmc(void) | |
63 | { | |
64 | return machine_is_at91sam9g20ek_2mmc() || (system_rev & HAVE_2MMC); | |
65 | } | |
66 | ||
61352667 | 67 | |
1b021a3b | 68 | static void __init ek_init_early(void) |
61352667 | 69 | { |
70 | /* Initialize processor: 18.432 MHz crystal */ | |
21d08b9d | 71 | at91_initialize(18432000); |
61352667 | 72 | } |
73 | ||
61352667 | 74 | /* |
75 | * USB Host port | |
76 | */ | |
77 | static struct at91_usbh_data __initdata ek_usbh_data = { | |
78 | .ports = 2, | |
63b4c296 JCPV |
79 | .vbus_pin = {-EINVAL, -EINVAL}, |
80 | .overcurrent_pin= {-EINVAL, -EINVAL}, | |
61352667 | 81 | }; |
82 | ||
83 | /* | |
84 | * USB Device port | |
85 | */ | |
86 | static struct at91_udc_data __initdata ek_udc_data = { | |
87 | .vbus_pin = AT91_PIN_PC5, | |
63b4c296 | 88 | .pullup_pin = -EINVAL, /* pull-up driven by UDC */ |
61352667 | 89 | }; |
90 | ||
91 | ||
92 | /* | |
93 | * SPI devices. | |
94 | */ | |
95 | static struct spi_board_info ek_spi_devices[] = { | |
4cf3326a | 96 | #if !IS_ENABLED(CONFIG_MMC_ATMELMCI) |
61352667 | 97 | { /* DataFlash chip */ |
98 | .modalias = "mtd_dataflash", | |
99 | .chip_select = 1, | |
100 | .max_speed_hz = 15 * 1000 * 1000, | |
101 | .bus_num = 0, | |
102 | }, | |
103 | #if defined(CONFIG_MTD_AT91_DATAFLASH_CARD) | |
104 | { /* DataFlash card */ | |
105 | .modalias = "mtd_dataflash", | |
106 | .chip_select = 0, | |
107 | .max_speed_hz = 15 * 1000 * 1000, | |
108 | .bus_num = 0, | |
109 | }, | |
110 | #endif | |
111 | #endif | |
112 | }; | |
113 | ||
114 | ||
115 | /* | |
116 | * MACB Ethernet device | |
117 | */ | |
84e0cdb0 | 118 | static struct macb_platform_data __initdata ek_macb_data = { |
61352667 | 119 | .phy_irq_pin = AT91_PIN_PA7, |
120 | .is_rmii = 1, | |
121 | }; | |
122 | ||
a6e016f1 JCPV |
123 | static void __init ek_add_device_macb(void) |
124 | { | |
125 | if (ek_have_2mmc()) | |
126 | ek_macb_data.phy_irq_pin = AT91_PIN_PB0; | |
127 | ||
128 | at91_add_device_eth(&ek_macb_data); | |
129 | } | |
61352667 | 130 | |
131 | /* | |
132 | * NAND flash | |
133 | */ | |
134 | static struct mtd_partition __initdata ek_nand_partition[] = { | |
135 | { | |
136 | .name = "Bootstrap", | |
137 | .offset = 0, | |
e505240b | 138 | .size = 4 * SZ_1M, |
61352667 | 139 | }, |
140 | { | |
141 | .name = "Partition 1", | |
e505240b AV |
142 | .offset = MTDPART_OFS_NXTBLK, |
143 | .size = 60 * SZ_1M, | |
61352667 | 144 | }, |
145 | { | |
146 | .name = "Partition 2", | |
e505240b | 147 | .offset = MTDPART_OFS_NXTBLK, |
61352667 | 148 | .size = MTDPART_SIZ_FULL, |
149 | }, | |
150 | }; | |
151 | ||
61352667 | 152 | /* det_pin is not connected */ |
7c896834 | 153 | static struct atmel_nand_data __initdata ek_nand_data = { |
61352667 | 154 | .ale = 21, |
155 | .cle = 22, | |
156 | .rdy_pin = AT91_PIN_PC13, | |
157 | .enable_pin = AT91_PIN_PC14, | |
63b4c296 | 158 | .det_pin = -EINVAL, |
bf4289cb | 159 | .ecc_mode = NAND_ECC_SOFT, |
98619dcb | 160 | .on_flash_bbt = 1, |
1754aab9 DES |
161 | .parts = ek_nand_partition, |
162 | .num_parts = ARRAY_SIZE(ek_nand_partition), | |
61352667 | 163 | }; |
164 | ||
8cdae51a AV |
165 | static struct sam9_smc_config __initdata ek_nand_smc_config = { |
166 | .ncs_read_setup = 0, | |
167 | .nrd_setup = 2, | |
168 | .ncs_write_setup = 0, | |
169 | .nwe_setup = 2, | |
170 | ||
171 | .ncs_read_pulse = 4, | |
172 | .nrd_pulse = 4, | |
173 | .ncs_write_pulse = 4, | |
174 | .nwe_pulse = 4, | |
175 | ||
176 | .read_cycle = 7, | |
177 | .write_cycle = 7, | |
178 | ||
179 | .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE, | |
180 | .tdf_cycles = 3, | |
181 | }; | |
182 | ||
183 | static void __init ek_add_device_nand(void) | |
184 | { | |
64393b3a | 185 | ek_nand_data.bus_width_16 = board_have_nand_16bit(); |
8cdae51a AV |
186 | /* setup bus-width (8 or 16) */ |
187 | if (ek_nand_data.bus_width_16) | |
188 | ek_nand_smc_config.mode |= AT91_SMC_DBW_16; | |
189 | else | |
190 | ek_nand_smc_config.mode |= AT91_SMC_DBW_8; | |
191 | ||
192 | /* configure chip-select 3 (NAND) */ | |
faee0cc3 | 193 | sam9_smc_configure(0, 3, &ek_nand_smc_config); |
8cdae51a AV |
194 | |
195 | at91_add_device_nand(&ek_nand_data); | |
196 | } | |
197 | ||
61352667 | 198 | |
199 | /* | |
200 | * MCI (SD/MMC) | |
a6e016f1 | 201 | * wp_pin and vcc_pin are not connected |
61352667 | 202 | */ |
a6e016f1 JCPV |
203 | static struct mci_platform_data __initdata ek_mmc_data = { |
204 | .slot[1] = { | |
205 | .bus_width = 4, | |
206 | .detect_pin = AT91_PIN_PC9, | |
63b4c296 | 207 | .wp_pin = -EINVAL, |
a6e016f1 JCPV |
208 | }, |
209 | ||
210 | }; | |
61352667 | 211 | |
a6e016f1 JCPV |
212 | static void __init ek_add_device_mmc(void) |
213 | { | |
a6e016f1 JCPV |
214 | if (ek_have_2mmc()) { |
215 | ek_mmc_data.slot[0].bus_width = 4; | |
216 | ek_mmc_data.slot[0].detect_pin = AT91_PIN_PC2; | |
63b4c296 | 217 | ek_mmc_data.slot[0].wp_pin = -1; |
a6e016f1 JCPV |
218 | } |
219 | at91_add_device_mci(0, &ek_mmc_data); | |
a6e016f1 | 220 | } |
61352667 | 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 | ||
a6e016f1 JCPV |
239 | static void __init ek_add_device_gpio_leds(void) |
240 | { | |
241 | if (ek_have_2mmc()) { | |
242 | ek_leds[0].gpio = AT91_PIN_PB8; | |
243 | ek_leds[1].gpio = AT91_PIN_PB9; | |
244 | } | |
245 | ||
246 | at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds)); | |
247 | } | |
59c5fe6d NF |
248 | |
249 | /* | |
250 | * GPIO Buttons | |
251 | */ | |
252 | #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE) | |
253 | static struct gpio_keys_button ek_buttons[] = { | |
254 | { | |
255 | .gpio = AT91_PIN_PA30, | |
256 | .code = BTN_3, | |
257 | .desc = "Button 3", | |
258 | .active_low = 1, | |
259 | .wakeup = 1, | |
260 | }, | |
261 | { | |
262 | .gpio = AT91_PIN_PA31, | |
263 | .code = BTN_4, | |
264 | .desc = "Button 4", | |
265 | .active_low = 1, | |
266 | .wakeup = 1, | |
267 | } | |
268 | }; | |
269 | ||
270 | static struct gpio_keys_platform_data ek_button_data = { | |
271 | .buttons = ek_buttons, | |
272 | .nbuttons = ARRAY_SIZE(ek_buttons), | |
273 | }; | |
274 | ||
275 | static struct platform_device ek_button_device = { | |
276 | .name = "gpio-keys", | |
277 | .id = -1, | |
278 | .num_resources = 0, | |
279 | .dev = { | |
280 | .platform_data = &ek_button_data, | |
281 | } | |
282 | }; | |
283 | ||
284 | static void __init ek_add_device_buttons(void) | |
285 | { | |
286 | at91_set_gpio_input(AT91_PIN_PA30, 1); /* btn3 */ | |
287 | at91_set_deglitch(AT91_PIN_PA30, 1); | |
288 | at91_set_gpio_input(AT91_PIN_PA31, 1); /* btn4 */ | |
289 | at91_set_deglitch(AT91_PIN_PA31, 1); | |
290 | ||
291 | platform_device_register(&ek_button_device); | |
292 | } | |
293 | #else | |
294 | static void __init ek_add_device_buttons(void) {} | |
295 | #endif | |
296 | ||
67b5d7b3 MR |
297 | /* |
298 | * ADCs | |
299 | */ | |
300 | ||
301 | static struct at91_adc_data ek_adc_data = { | |
302 | .channels_used = BIT(0) | BIT(1) | BIT(2) | BIT(3), | |
303 | .use_external_triggers = true, | |
304 | .vref = 3300, | |
305 | }; | |
306 | ||
5e886f68 DES |
307 | #if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE) |
308 | static struct regulator_consumer_supply ek_audio_consumer_supplies[] = { | |
309 | REGULATOR_SUPPLY("AVDD", "0-001b"), | |
310 | REGULATOR_SUPPLY("HPVDD", "0-001b"), | |
311 | REGULATOR_SUPPLY("DBVDD", "0-001b"), | |
312 | REGULATOR_SUPPLY("DCVDD", "0-001b"), | |
313 | }; | |
314 | ||
315 | static struct regulator_init_data ek_avdd_reg_init_data = { | |
316 | .constraints = { | |
317 | .name = "3V3", | |
318 | .valid_ops_mask = REGULATOR_CHANGE_STATUS, | |
319 | }, | |
320 | .consumer_supplies = ek_audio_consumer_supplies, | |
321 | .num_consumer_supplies = ARRAY_SIZE(ek_audio_consumer_supplies), | |
322 | }; | |
323 | ||
324 | static struct fixed_voltage_config ek_vdd_pdata = { | |
325 | .supply_name = "board-3V3", | |
326 | .microvolts = 3300000, | |
327 | .gpio = -EINVAL, | |
328 | .enabled_at_boot = 0, | |
329 | .init_data = &ek_avdd_reg_init_data, | |
330 | }; | |
331 | static struct platform_device ek_voltage_regulator = { | |
332 | .name = "reg-fixed-voltage", | |
333 | .id = -1, | |
334 | .num_resources = 0, | |
335 | .dev = { | |
336 | .platform_data = &ek_vdd_pdata, | |
337 | }, | |
338 | }; | |
339 | static void __init ek_add_regulators(void) | |
340 | { | |
341 | platform_device_register(&ek_voltage_regulator); | |
342 | } | |
343 | #else | |
344 | static void __init ek_add_regulators(void) {} | |
345 | #endif | |
346 | ||
59c5fe6d | 347 | |
6953e47e | 348 | static struct i2c_board_info __initdata ek_i2c_devices[] = { |
438ff39d RA |
349 | { |
350 | I2C_BOARD_INFO("24c512", 0x50) | |
351 | }, | |
352 | { | |
353 | I2C_BOARD_INFO("wm8731", 0x1b) | |
354 | }, | |
6953e47e DES |
355 | }; |
356 | ||
bac91462 BS |
357 | static struct platform_device sam9g20ek_audio_device = { |
358 | .name = "at91sam9g20ek-audio", | |
359 | .id = -1, | |
360 | }; | |
361 | ||
362 | static void __init ek_add_device_audio(void) | |
363 | { | |
bac91462 BS |
364 | platform_device_register(&sam9g20ek_audio_device); |
365 | } | |
366 | ||
6953e47e | 367 | |
61352667 | 368 | static void __init ek_board_init(void) |
369 | { | |
370 | /* Serial */ | |
71b149b3 JCPV |
371 | /* DBGU on ttyS0. (Rx & Tx only) */ |
372 | at91_register_uart(0, 0, 0); | |
373 | ||
374 | /* USART0 on ttyS1. (Rx, Tx, CTS, RTS, DTR, DSR, DCD, RI) */ | |
375 | at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS | |
376 | | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD | |
377 | | ATMEL_UART_RI); | |
378 | ||
379 | /* USART1 on ttyS2. (Rx, Tx, RTS, CTS) */ | |
380 | at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS); | |
61352667 | 381 | at91_add_device_serial(); |
382 | /* USB Host */ | |
383 | at91_add_device_usbh(&ek_usbh_data); | |
384 | /* USB Device */ | |
385 | at91_add_device_udc(&ek_udc_data); | |
386 | /* SPI */ | |
387 | at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices)); | |
388 | /* NAND */ | |
8cdae51a | 389 | ek_add_device_nand(); |
61352667 | 390 | /* Ethernet */ |
a6e016f1 | 391 | ek_add_device_macb(); |
5e886f68 DES |
392 | /* Regulators */ |
393 | ek_add_regulators(); | |
61352667 | 394 | /* MMC */ |
a6e016f1 | 395 | ek_add_device_mmc(); |
61352667 | 396 | /* I2C */ |
6953e47e | 397 | at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices)); |
61352667 | 398 | /* LEDs */ |
a6e016f1 | 399 | ek_add_device_gpio_leds(); |
59c5fe6d NF |
400 | /* Push Buttons */ |
401 | ek_add_device_buttons(); | |
67b5d7b3 MR |
402 | /* ADCs */ |
403 | at91_add_device_adc(&ek_adc_data); | |
423145a5 MB |
404 | /* PCK0 provides MCLK to the WM8731 */ |
405 | at91_set_B_periph(AT91_PIN_PC1, 0); | |
406 | /* SSC (for WM8731) */ | |
407 | at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX); | |
bac91462 | 408 | ek_add_device_audio(); |
61352667 | 409 | } |
410 | ||
411 | MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK") | |
412 | /* Maintainer: Atmel */ | |
0f391f18 | 413 | .init_time = at91_init_time, |
21d08b9d | 414 | .map_io = at91_map_io, |
3e135466 | 415 | .handle_irq = at91_aic_handle_irq, |
1b021a3b | 416 | .init_early = ek_init_early, |
92100c12 | 417 | .init_irq = at91_init_irq_default, |
61352667 | 418 | .init_machine = ek_board_init, |
419 | MACHINE_END | |
a6e016f1 JCPV |
420 | |
421 | MACHINE_START(AT91SAM9G20EK_2MMC, "Atmel AT91SAM9G20-EK 2 MMC Slot Mod") | |
422 | /* Maintainer: Atmel */ | |
0f391f18 | 423 | .init_time = at91_init_time, |
21d08b9d | 424 | .map_io = at91_map_io, |
3e135466 | 425 | .handle_irq = at91_aic_handle_irq, |
1b021a3b | 426 | .init_early = ek_init_early, |
92100c12 | 427 | .init_irq = at91_init_irq_default, |
a6e016f1 JCPV |
428 | .init_machine = ek_board_init, |
429 | MACHINE_END |