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20#include <linux/types.h>
21#include <linux/gpio.h>
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>
28#include <linux/gpio_keys.h>
29#include <linux/input.h>
30#include <linux/clk.h>
31#include <linux/regulator/machine.h>
32#include <linux/regulator/fixed.h>
33#include <linux/regulator/consumer.h>
34
35#include <linux/platform_data/at91_adc.h>
36
37#include <mach/hardware.h>
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
46#include <mach/at91sam9_smc.h>
47#include <mach/system_rev.h>
48
49#include "at91_aic.h"
50#include "board.h"
51#include "sam9_smc.h"
52#include "generic.h"
53
54
55
56
57
58
59
60#define HAVE_2MMC (1 << 0)
61static int inline ek_have_2mmc(void)
62{
63 return machine_is_at91sam9g20ek_2mmc() || (system_rev & HAVE_2MMC);
64}
65
66
67static void __init ek_init_early(void)
68{
69
70 at91_initialize(18432000);
71}
72
73
74
75
76static struct at91_usbh_data __initdata ek_usbh_data = {
77 .ports = 2,
78 .vbus_pin = {-EINVAL, -EINVAL},
79 .overcurrent_pin= {-EINVAL, -EINVAL},
80};
81
82
83
84
85static struct at91_udc_data __initdata ek_udc_data = {
86 .vbus_pin = AT91_PIN_PC5,
87 .pullup_pin = -EINVAL,
88};
89
90
91
92
93
94static struct spi_board_info ek_spi_devices[] = {
95#if !IS_ENABLED(CONFIG_MMC_ATMELMCI)
96 {
97 .modalias = "mtd_dataflash",
98 .chip_select = 1,
99 .max_speed_hz = 15 * 1000 * 1000,
100 .bus_num = 0,
101 },
102#if defined(CONFIG_MTD_AT91_DATAFLASH_CARD)
103 {
104 .modalias = "mtd_dataflash",
105 .chip_select = 0,
106 .max_speed_hz = 15 * 1000 * 1000,
107 .bus_num = 0,
108 },
109#endif
110#endif
111};
112
113
114
115
116
117static struct macb_platform_data __initdata ek_macb_data = {
118 .phy_irq_pin = AT91_PIN_PA7,
119 .is_rmii = 1,
120};
121
122static void __init ek_add_device_macb(void)
123{
124 if (ek_have_2mmc())
125 ek_macb_data.phy_irq_pin = AT91_PIN_PB0;
126
127 at91_add_device_eth(&ek_macb_data);
128}
129
130
131
132
133static struct mtd_partition __initdata ek_nand_partition[] = {
134 {
135 .name = "Bootstrap",
136 .offset = 0,
137 .size = 4 * SZ_1M,
138 },
139 {
140 .name = "Partition 1",
141 .offset = MTDPART_OFS_NXTBLK,
142 .size = 60 * SZ_1M,
143 },
144 {
145 .name = "Partition 2",
146 .offset = MTDPART_OFS_NXTBLK,
147 .size = MTDPART_SIZ_FULL,
148 },
149};
150
151
152static struct atmel_nand_data __initdata ek_nand_data = {
153 .ale = 21,
154 .cle = 22,
155 .rdy_pin = AT91_PIN_PC13,
156 .enable_pin = AT91_PIN_PC14,
157 .det_pin = -EINVAL,
158 .ecc_mode = NAND_ECC_SOFT,
159 .on_flash_bbt = 1,
160 .parts = ek_nand_partition,
161 .num_parts = ARRAY_SIZE(ek_nand_partition),
162};
163
164static struct sam9_smc_config __initdata ek_nand_smc_config = {
165 .ncs_read_setup = 0,
166 .nrd_setup = 2,
167 .ncs_write_setup = 0,
168 .nwe_setup = 2,
169
170 .ncs_read_pulse = 4,
171 .nrd_pulse = 4,
172 .ncs_write_pulse = 4,
173 .nwe_pulse = 4,
174
175 .read_cycle = 7,
176 .write_cycle = 7,
177
178 .mode = AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE,
179 .tdf_cycles = 3,
180};
181
182static void __init ek_add_device_nand(void)
183{
184 ek_nand_data.bus_width_16 = board_have_nand_16bit();
185
186 if (ek_nand_data.bus_width_16)
187 ek_nand_smc_config.mode |= AT91_SMC_DBW_16;
188 else
189 ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
190
191
192 sam9_smc_configure(0, 3, &ek_nand_smc_config);
193
194 at91_add_device_nand(&ek_nand_data);
195}
196
197
198
199
200
201
202static struct mci_platform_data __initdata ek_mmc_data = {
203 .slot[1] = {
204 .bus_width = 4,
205 .detect_pin = AT91_PIN_PC9,
206 .wp_pin = -EINVAL,
207 },
208
209};
210
211static void __init ek_add_device_mmc(void)
212{
213 if (ek_have_2mmc()) {
214 ek_mmc_data.slot[0].bus_width = 4;
215 ek_mmc_data.slot[0].detect_pin = AT91_PIN_PC2;
216 ek_mmc_data.slot[0].wp_pin = -1;
217 }
218 at91_add_device_mci(0, &ek_mmc_data);
219}
220
221
222
223
224static struct gpio_led ek_leds[] = {
225 {
226 .name = "ds5",
227 .gpio = AT91_PIN_PA6,
228 .active_low = 1,
229 .default_trigger = "none",
230 },
231 {
232 .name = "ds1",
233 .gpio = AT91_PIN_PA9,
234 .default_trigger = "heartbeat",
235 }
236};
237
238static void __init ek_add_device_gpio_leds(void)
239{
240 if (ek_have_2mmc()) {
241 ek_leds[0].gpio = AT91_PIN_PB8;
242 ek_leds[1].gpio = AT91_PIN_PB9;
243 }
244
245 at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
246}
247
248
249
250
251#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
252static struct gpio_keys_button ek_buttons[] = {
253 {
254 .gpio = AT91_PIN_PA30,
255 .code = BTN_3,
256 .desc = "Button 3",
257 .active_low = 1,
258 .wakeup = 1,
259 },
260 {
261 .gpio = AT91_PIN_PA31,
262 .code = BTN_4,
263 .desc = "Button 4",
264 .active_low = 1,
265 .wakeup = 1,
266 }
267};
268
269static struct gpio_keys_platform_data ek_button_data = {
270 .buttons = ek_buttons,
271 .nbuttons = ARRAY_SIZE(ek_buttons),
272};
273
274static struct platform_device ek_button_device = {
275 .name = "gpio-keys",
276 .id = -1,
277 .num_resources = 0,
278 .dev = {
279 .platform_data = &ek_button_data,
280 }
281};
282
283static void __init ek_add_device_buttons(void)
284{
285 at91_set_gpio_input(AT91_PIN_PA30, 1);
286 at91_set_deglitch(AT91_PIN_PA30, 1);
287 at91_set_gpio_input(AT91_PIN_PA31, 1);
288 at91_set_deglitch(AT91_PIN_PA31, 1);
289
290 platform_device_register(&ek_button_device);
291}
292#else
293static void __init ek_add_device_buttons(void) {}
294#endif
295
296
297
298
299
300static struct at91_adc_data ek_adc_data = {
301 .channels_used = BIT(0) | BIT(1) | BIT(2) | BIT(3),
302 .use_external_triggers = true,
303 .vref = 3300,
304};
305
306#if defined(CONFIG_REGULATOR_FIXED_VOLTAGE) || defined(CONFIG_REGULATOR_FIXED_VOLTAGE_MODULE)
307static struct regulator_consumer_supply ek_audio_consumer_supplies[] = {
308 REGULATOR_SUPPLY("AVDD", "0-001b"),
309 REGULATOR_SUPPLY("HPVDD", "0-001b"),
310 REGULATOR_SUPPLY("DBVDD", "0-001b"),
311 REGULATOR_SUPPLY("DCVDD", "0-001b"),
312};
313
314static struct regulator_init_data ek_avdd_reg_init_data = {
315 .constraints = {
316 .name = "3V3",
317 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
318 },
319 .consumer_supplies = ek_audio_consumer_supplies,
320 .num_consumer_supplies = ARRAY_SIZE(ek_audio_consumer_supplies),
321};
322
323static struct fixed_voltage_config ek_vdd_pdata = {
324 .supply_name = "board-3V3",
325 .microvolts = 3300000,
326 .gpio = -EINVAL,
327 .enabled_at_boot = 0,
328 .init_data = &ek_avdd_reg_init_data,
329};
330static struct platform_device ek_voltage_regulator = {
331 .name = "reg-fixed-voltage",
332 .id = -1,
333 .num_resources = 0,
334 .dev = {
335 .platform_data = &ek_vdd_pdata,
336 },
337};
338static void __init ek_add_regulators(void)
339{
340 platform_device_register(&ek_voltage_regulator);
341}
342#else
343static void __init ek_add_regulators(void) {}
344#endif
345
346
347static struct i2c_board_info __initdata ek_i2c_devices[] = {
348 {
349 I2C_BOARD_INFO("24c512", 0x50)
350 },
351 {
352 I2C_BOARD_INFO("wm8731", 0x1b)
353 },
354};
355
356static struct platform_device sam9g20ek_audio_device = {
357 .name = "at91sam9g20ek-audio",
358 .id = -1,
359};
360
361static void __init ek_add_device_audio(void)
362{
363 platform_device_register(&sam9g20ek_audio_device);
364}
365
366
367static void __init ek_board_init(void)
368{
369
370
371 at91_register_uart(0, 0, 0);
372
373
374 at91_register_uart(AT91SAM9260_ID_US0, 1, ATMEL_UART_CTS | ATMEL_UART_RTS
375 | ATMEL_UART_DTR | ATMEL_UART_DSR | ATMEL_UART_DCD
376 | ATMEL_UART_RI);
377
378
379 at91_register_uart(AT91SAM9260_ID_US1, 2, ATMEL_UART_CTS | ATMEL_UART_RTS);
380 at91_add_device_serial();
381
382 at91_add_device_usbh(&ek_usbh_data);
383
384 at91_add_device_udc(&ek_udc_data);
385
386 at91_add_device_spi(ek_spi_devices, ARRAY_SIZE(ek_spi_devices));
387
388 ek_add_device_nand();
389
390 ek_add_device_macb();
391
392 ek_add_regulators();
393
394 ek_add_device_mmc();
395
396 at91_add_device_i2c(ek_i2c_devices, ARRAY_SIZE(ek_i2c_devices));
397
398 ek_add_device_gpio_leds();
399
400 ek_add_device_buttons();
401
402 at91_add_device_adc(&ek_adc_data);
403
404 at91_set_B_periph(AT91_PIN_PC1, 0);
405
406 at91_add_device_ssc(AT91SAM9260_ID_SSC, ATMEL_SSC_TX);
407 ek_add_device_audio();
408}
409
410MACHINE_START(AT91SAM9G20EK, "Atmel AT91SAM9G20-EK")
411
412 .init_time = at91sam926x_pit_init,
413 .map_io = at91_map_io,
414 .handle_irq = at91_aic_handle_irq,
415 .init_early = ek_init_early,
416 .init_irq = at91_init_irq_default,
417 .init_machine = ek_board_init,
418MACHINE_END
419
420MACHINE_START(AT91SAM9G20EK_2MMC, "Atmel AT91SAM9G20-EK 2 MMC Slot Mod")
421
422 .init_time = at91sam926x_pit_init,
423 .map_io = at91_map_io,
424 .handle_irq = at91_aic_handle_irq,
425 .init_early = ek_init_early,
426 .init_irq = at91_init_irq_default,
427 .init_machine = ek_board_init,
428MACHINE_END
429
