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877d7720 AV |
1 | /* |
2 | * Copyright (C) 2007 Atmel Corporation | |
3 | * | |
4 | * This file is subject to the terms and conditions of the GNU General Public | |
5 | * License. See the file COPYING in the main directory of this archive for | |
6 | * more details. | |
7 | */ | |
8 | ||
9 | #include <asm/mach/arch.h> | |
10 | #include <asm/mach/map.h> | |
11 | ||
c6686ff9 | 12 | #include <linux/dma-mapping.h> |
877d7720 | 13 | #include <linux/platform_device.h> |
f230d3f5 | 14 | #include <linux/i2c-gpio.h> |
877d7720 | 15 | |
f230d3f5 | 16 | #include <linux/fb.h> |
877d7720 AV |
17 | #include <video/atmel_lcdc.h> |
18 | ||
19 | #include <asm/arch/board.h> | |
20 | #include <asm/arch/gpio.h> | |
21 | #include <asm/arch/at91sam9rl.h> | |
22 | #include <asm/arch/at91sam9rl_matrix.h> | |
b78eabde | 23 | #include <asm/arch/at91sam9_smc.h> |
877d7720 AV |
24 | |
25 | #include "generic.h" | |
26 | ||
877d7720 AV |
27 | |
28 | /* -------------------------------------------------------------------- | |
29 | * MMC / SD | |
30 | * -------------------------------------------------------------------- */ | |
31 | ||
32 | #if defined(CONFIG_MMC_AT91) || defined(CONFIG_MMC_AT91_MODULE) | |
c6686ff9 | 33 | static u64 mmc_dmamask = DMA_BIT_MASK(32); |
877d7720 AV |
34 | static struct at91_mmc_data mmc_data; |
35 | ||
36 | static struct resource mmc_resources[] = { | |
37 | [0] = { | |
38 | .start = AT91SAM9RL_BASE_MCI, | |
39 | .end = AT91SAM9RL_BASE_MCI + SZ_16K - 1, | |
40 | .flags = IORESOURCE_MEM, | |
41 | }, | |
42 | [1] = { | |
43 | .start = AT91SAM9RL_ID_MCI, | |
44 | .end = AT91SAM9RL_ID_MCI, | |
45 | .flags = IORESOURCE_IRQ, | |
46 | }, | |
47 | }; | |
48 | ||
49 | static struct platform_device at91sam9rl_mmc_device = { | |
50 | .name = "at91_mci", | |
51 | .id = -1, | |
52 | .dev = { | |
53 | .dma_mask = &mmc_dmamask, | |
c6686ff9 | 54 | .coherent_dma_mask = DMA_BIT_MASK(32), |
877d7720 AV |
55 | .platform_data = &mmc_data, |
56 | }, | |
57 | .resource = mmc_resources, | |
58 | .num_resources = ARRAY_SIZE(mmc_resources), | |
59 | }; | |
60 | ||
61 | void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) | |
62 | { | |
63 | if (!data) | |
64 | return; | |
65 | ||
66 | /* input/irq */ | |
67 | if (data->det_pin) { | |
68 | at91_set_gpio_input(data->det_pin, 1); | |
69 | at91_set_deglitch(data->det_pin, 1); | |
70 | } | |
71 | if (data->wp_pin) | |
72 | at91_set_gpio_input(data->wp_pin, 1); | |
73 | if (data->vcc_pin) | |
74 | at91_set_gpio_output(data->vcc_pin, 0); | |
75 | ||
76 | /* CLK */ | |
77 | at91_set_A_periph(AT91_PIN_PA2, 0); | |
78 | ||
79 | /* CMD */ | |
80 | at91_set_A_periph(AT91_PIN_PA1, 1); | |
81 | ||
82 | /* DAT0, maybe DAT1..DAT3 */ | |
83 | at91_set_A_periph(AT91_PIN_PA0, 1); | |
84 | if (data->wire4) { | |
85 | at91_set_A_periph(AT91_PIN_PA3, 1); | |
86 | at91_set_A_periph(AT91_PIN_PA4, 1); | |
87 | at91_set_A_periph(AT91_PIN_PA5, 1); | |
88 | } | |
89 | ||
90 | mmc_data = *data; | |
91 | platform_device_register(&at91sam9rl_mmc_device); | |
92 | } | |
93 | #else | |
94 | void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data) {} | |
95 | #endif | |
96 | ||
97 | ||
98 | /* -------------------------------------------------------------------- | |
99 | * NAND / SmartMedia | |
100 | * -------------------------------------------------------------------- */ | |
101 | ||
102 | #if defined(CONFIG_MTD_NAND_AT91) || defined(CONFIG_MTD_NAND_AT91_MODULE) | |
3c3796cc | 103 | static struct atmel_nand_data nand_data; |
877d7720 AV |
104 | |
105 | #define NAND_BASE AT91_CHIPSELECT_3 | |
106 | ||
107 | static struct resource nand_resources[] = { | |
d7a2415f | 108 | [0] = { |
877d7720 AV |
109 | .start = NAND_BASE, |
110 | .end = NAND_BASE + SZ_256M - 1, | |
111 | .flags = IORESOURCE_MEM, | |
d7a2415f AV |
112 | }, |
113 | [1] = { | |
114 | .start = AT91_BASE_SYS + AT91_ECC, | |
115 | .end = AT91_BASE_SYS + AT91_ECC + SZ_512 - 1, | |
116 | .flags = IORESOURCE_MEM, | |
877d7720 AV |
117 | } |
118 | }; | |
119 | ||
3c3796cc HS |
120 | static struct platform_device atmel_nand_device = { |
121 | .name = "atmel_nand", | |
877d7720 AV |
122 | .id = -1, |
123 | .dev = { | |
124 | .platform_data = &nand_data, | |
125 | }, | |
126 | .resource = nand_resources, | |
127 | .num_resources = ARRAY_SIZE(nand_resources), | |
128 | }; | |
129 | ||
3c3796cc | 130 | void __init at91_add_device_nand(struct atmel_nand_data *data) |
877d7720 AV |
131 | { |
132 | unsigned long csa; | |
133 | ||
134 | if (!data) | |
135 | return; | |
136 | ||
137 | csa = at91_sys_read(AT91_MATRIX_EBICSA); | |
138 | at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA); | |
139 | ||
140 | /* set the bus interface characteristics */ | |
141 | at91_sys_write(AT91_SMC_SETUP(3), AT91_SMC_NWESETUP_(0) | AT91_SMC_NCS_WRSETUP_(0) | |
142 | | AT91_SMC_NRDSETUP_(0) | AT91_SMC_NCS_RDSETUP_(0)); | |
143 | ||
144 | at91_sys_write(AT91_SMC_PULSE(3), AT91_SMC_NWEPULSE_(2) | AT91_SMC_NCS_WRPULSE_(5) | |
145 | | AT91_SMC_NRDPULSE_(2) | AT91_SMC_NCS_RDPULSE_(5)); | |
146 | ||
147 | at91_sys_write(AT91_SMC_CYCLE(3), AT91_SMC_NWECYCLE_(7) | AT91_SMC_NRDCYCLE_(7)); | |
148 | ||
149 | at91_sys_write(AT91_SMC_MODE(3), AT91_SMC_DBW_8 | AT91_SMC_READMODE | AT91_SMC_WRITEMODE | AT91_SMC_EXNWMODE_DISABLE | AT91_SMC_TDF_(1)); | |
150 | ||
151 | /* enable pin */ | |
152 | if (data->enable_pin) | |
153 | at91_set_gpio_output(data->enable_pin, 1); | |
154 | ||
155 | /* ready/busy pin */ | |
156 | if (data->rdy_pin) | |
157 | at91_set_gpio_input(data->rdy_pin, 1); | |
158 | ||
159 | /* card detect pin */ | |
160 | if (data->det_pin) | |
161 | at91_set_gpio_input(data->det_pin, 1); | |
162 | ||
163 | at91_set_A_periph(AT91_PIN_PB4, 0); /* NANDOE */ | |
164 | at91_set_A_periph(AT91_PIN_PB5, 0); /* NANDWE */ | |
165 | ||
166 | nand_data = *data; | |
3c3796cc | 167 | platform_device_register(&atmel_nand_device); |
877d7720 AV |
168 | } |
169 | ||
170 | #else | |
3c3796cc | 171 | void __init at91_add_device_nand(struct atmel_nand_data *data) {} |
877d7720 AV |
172 | #endif |
173 | ||
174 | ||
175 | /* -------------------------------------------------------------------- | |
176 | * TWI (i2c) | |
177 | * -------------------------------------------------------------------- */ | |
178 | ||
f230d3f5 AV |
179 | /* |
180 | * Prefer the GPIO code since the TWI controller isn't robust | |
181 | * (gets overruns and underruns under load) and can only issue | |
182 | * repeated STARTs in one scenario (the driver doesn't yet handle them). | |
183 | */ | |
184 | #if defined(CONFIG_I2C_GPIO) || defined(CONFIG_I2C_GPIO_MODULE) | |
185 | ||
186 | static struct i2c_gpio_platform_data pdata = { | |
187 | .sda_pin = AT91_PIN_PA23, | |
188 | .sda_is_open_drain = 1, | |
189 | .scl_pin = AT91_PIN_PA24, | |
190 | .scl_is_open_drain = 1, | |
191 | .udelay = 2, /* ~100 kHz */ | |
192 | }; | |
193 | ||
194 | static struct platform_device at91sam9rl_twi_device = { | |
195 | .name = "i2c-gpio", | |
196 | .id = -1, | |
197 | .dev.platform_data = &pdata, | |
198 | }; | |
199 | ||
200 | void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) | |
201 | { | |
202 | at91_set_GPIO_periph(AT91_PIN_PA23, 1); /* TWD (SDA) */ | |
203 | at91_set_multi_drive(AT91_PIN_PA23, 1); | |
204 | ||
205 | at91_set_GPIO_periph(AT91_PIN_PA24, 1); /* TWCK (SCL) */ | |
206 | at91_set_multi_drive(AT91_PIN_PA24, 1); | |
207 | ||
208 | i2c_register_board_info(0, devices, nr_devices); | |
209 | platform_device_register(&at91sam9rl_twi_device); | |
210 | } | |
211 | ||
212 | #elif defined(CONFIG_I2C_AT91) || defined(CONFIG_I2C_AT91_MODULE) | |
877d7720 AV |
213 | |
214 | static struct resource twi_resources[] = { | |
215 | [0] = { | |
216 | .start = AT91SAM9RL_BASE_TWI0, | |
217 | .end = AT91SAM9RL_BASE_TWI0 + SZ_16K - 1, | |
218 | .flags = IORESOURCE_MEM, | |
219 | }, | |
220 | [1] = { | |
221 | .start = AT91SAM9RL_ID_TWI0, | |
222 | .end = AT91SAM9RL_ID_TWI0, | |
223 | .flags = IORESOURCE_IRQ, | |
224 | }, | |
225 | }; | |
226 | ||
227 | static struct platform_device at91sam9rl_twi_device = { | |
228 | .name = "at91_i2c", | |
229 | .id = -1, | |
230 | .resource = twi_resources, | |
231 | .num_resources = ARRAY_SIZE(twi_resources), | |
232 | }; | |
233 | ||
f230d3f5 | 234 | void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) |
877d7720 AV |
235 | { |
236 | /* pins used for TWI interface */ | |
237 | at91_set_A_periph(AT91_PIN_PA23, 0); /* TWD */ | |
238 | at91_set_multi_drive(AT91_PIN_PA23, 1); | |
239 | ||
240 | at91_set_A_periph(AT91_PIN_PA24, 0); /* TWCK */ | |
241 | at91_set_multi_drive(AT91_PIN_PA24, 1); | |
242 | ||
f230d3f5 | 243 | i2c_register_board_info(0, devices, nr_devices); |
877d7720 AV |
244 | platform_device_register(&at91sam9rl_twi_device); |
245 | } | |
246 | #else | |
f230d3f5 | 247 | void __init at91_add_device_i2c(struct i2c_board_info *devices, int nr_devices) {} |
877d7720 AV |
248 | #endif |
249 | ||
250 | ||
251 | /* -------------------------------------------------------------------- | |
252 | * SPI | |
253 | * -------------------------------------------------------------------- */ | |
254 | ||
255 | #if defined(CONFIG_SPI_ATMEL) || defined(CONFIG_SPI_ATMEL_MODULE) | |
c6686ff9 | 256 | static u64 spi_dmamask = DMA_BIT_MASK(32); |
877d7720 AV |
257 | |
258 | static struct resource spi_resources[] = { | |
259 | [0] = { | |
260 | .start = AT91SAM9RL_BASE_SPI, | |
261 | .end = AT91SAM9RL_BASE_SPI + SZ_16K - 1, | |
262 | .flags = IORESOURCE_MEM, | |
263 | }, | |
264 | [1] = { | |
265 | .start = AT91SAM9RL_ID_SPI, | |
266 | .end = AT91SAM9RL_ID_SPI, | |
267 | .flags = IORESOURCE_IRQ, | |
268 | }, | |
269 | }; | |
270 | ||
271 | static struct platform_device at91sam9rl_spi_device = { | |
272 | .name = "atmel_spi", | |
273 | .id = 0, | |
274 | .dev = { | |
275 | .dma_mask = &spi_dmamask, | |
c6686ff9 | 276 | .coherent_dma_mask = DMA_BIT_MASK(32), |
877d7720 AV |
277 | }, |
278 | .resource = spi_resources, | |
279 | .num_resources = ARRAY_SIZE(spi_resources), | |
280 | }; | |
281 | ||
282 | static const unsigned spi_standard_cs[4] = { AT91_PIN_PA28, AT91_PIN_PB7, AT91_PIN_PD8, AT91_PIN_PD9 }; | |
283 | ||
284 | ||
285 | void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) | |
286 | { | |
287 | int i; | |
288 | unsigned long cs_pin; | |
289 | ||
290 | at91_set_A_periph(AT91_PIN_PA25, 0); /* MISO */ | |
291 | at91_set_A_periph(AT91_PIN_PA26, 0); /* MOSI */ | |
292 | at91_set_A_periph(AT91_PIN_PA27, 0); /* SPCK */ | |
293 | ||
294 | /* Enable SPI chip-selects */ | |
295 | for (i = 0; i < nr_devices; i++) { | |
296 | if (devices[i].controller_data) | |
297 | cs_pin = (unsigned long) devices[i].controller_data; | |
298 | else | |
299 | cs_pin = spi_standard_cs[devices[i].chip_select]; | |
300 | ||
301 | /* enable chip-select pin */ | |
302 | at91_set_gpio_output(cs_pin, 1); | |
303 | ||
304 | /* pass chip-select pin to driver */ | |
305 | devices[i].controller_data = (void *) cs_pin; | |
306 | } | |
307 | ||
308 | spi_register_board_info(devices, nr_devices); | |
309 | platform_device_register(&at91sam9rl_spi_device); | |
310 | } | |
311 | #else | |
312 | void __init at91_add_device_spi(struct spi_board_info *devices, int nr_devices) {} | |
313 | #endif | |
314 | ||
315 | ||
316 | /* -------------------------------------------------------------------- | |
317 | * LCD Controller | |
318 | * -------------------------------------------------------------------- */ | |
319 | ||
320 | #if defined(CONFIG_FB_ATMEL) || defined(CONFIG_FB_ATMEL_MODULE) | |
c6686ff9 | 321 | static u64 lcdc_dmamask = DMA_BIT_MASK(32); |
877d7720 AV |
322 | static struct atmel_lcdfb_info lcdc_data; |
323 | ||
324 | static struct resource lcdc_resources[] = { | |
325 | [0] = { | |
326 | .start = AT91SAM9RL_LCDC_BASE, | |
327 | .end = AT91SAM9RL_LCDC_BASE + SZ_4K - 1, | |
328 | .flags = IORESOURCE_MEM, | |
329 | }, | |
330 | [1] = { | |
331 | .start = AT91SAM9RL_ID_LCDC, | |
332 | .end = AT91SAM9RL_ID_LCDC, | |
333 | .flags = IORESOURCE_IRQ, | |
334 | }, | |
335 | #if defined(CONFIG_FB_INTSRAM) | |
336 | [2] = { | |
337 | .start = AT91SAM9RL_SRAM_BASE, | |
338 | .end = AT91SAM9RL_SRAM_BASE + AT91SAM9RL_SRAM_SIZE - 1, | |
339 | .flags = IORESOURCE_MEM, | |
340 | }, | |
341 | #endif | |
342 | }; | |
343 | ||
344 | static struct platform_device at91_lcdc_device = { | |
345 | .name = "atmel_lcdfb", | |
346 | .id = 0, | |
347 | .dev = { | |
348 | .dma_mask = &lcdc_dmamask, | |
c6686ff9 | 349 | .coherent_dma_mask = DMA_BIT_MASK(32), |
877d7720 AV |
350 | .platform_data = &lcdc_data, |
351 | }, | |
352 | .resource = lcdc_resources, | |
353 | .num_resources = ARRAY_SIZE(lcdc_resources), | |
354 | }; | |
355 | ||
356 | void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) | |
357 | { | |
358 | if (!data) { | |
359 | return; | |
360 | } | |
361 | ||
362 | at91_set_B_periph(AT91_PIN_PC1, 0); /* LCDPWR */ | |
363 | at91_set_A_periph(AT91_PIN_PC5, 0); /* LCDHSYNC */ | |
364 | at91_set_A_periph(AT91_PIN_PC6, 0); /* LCDDOTCK */ | |
365 | at91_set_A_periph(AT91_PIN_PC7, 0); /* LCDDEN */ | |
366 | at91_set_A_periph(AT91_PIN_PC3, 0); /* LCDCC */ | |
367 | at91_set_B_periph(AT91_PIN_PC9, 0); /* LCDD3 */ | |
368 | at91_set_B_periph(AT91_PIN_PC10, 0); /* LCDD4 */ | |
369 | at91_set_B_periph(AT91_PIN_PC11, 0); /* LCDD5 */ | |
370 | at91_set_B_periph(AT91_PIN_PC12, 0); /* LCDD6 */ | |
371 | at91_set_B_periph(AT91_PIN_PC13, 0); /* LCDD7 */ | |
372 | at91_set_B_periph(AT91_PIN_PC15, 0); /* LCDD11 */ | |
373 | at91_set_B_periph(AT91_PIN_PC16, 0); /* LCDD12 */ | |
374 | at91_set_B_periph(AT91_PIN_PC17, 0); /* LCDD13 */ | |
375 | at91_set_B_periph(AT91_PIN_PC18, 0); /* LCDD14 */ | |
376 | at91_set_B_periph(AT91_PIN_PC19, 0); /* LCDD15 */ | |
377 | at91_set_B_periph(AT91_PIN_PC20, 0); /* LCDD18 */ | |
378 | at91_set_B_periph(AT91_PIN_PC21, 0); /* LCDD19 */ | |
379 | at91_set_B_periph(AT91_PIN_PC22, 0); /* LCDD20 */ | |
380 | at91_set_B_periph(AT91_PIN_PC23, 0); /* LCDD21 */ | |
381 | at91_set_B_periph(AT91_PIN_PC24, 0); /* LCDD22 */ | |
382 | at91_set_B_periph(AT91_PIN_PC25, 0); /* LCDD23 */ | |
383 | ||
01d3a5e7 HS |
384 | #ifdef CONFIG_FB_INTSRAM |
385 | { | |
386 | void __iomem *fb; | |
387 | struct resource *fb_res = &lcdc_resources[2]; | |
388 | size_t fb_len = fb_res->end - fb_res->start + 1; | |
389 | ||
390 | fb = ioremap_writecombine(fb_res->start, fb_len); | |
391 | if (fb) { | |
392 | memset(fb, 0, fb_len); | |
393 | iounmap(fb, fb_len); | |
394 | } | |
395 | } | |
396 | #endif | |
397 | ||
877d7720 AV |
398 | lcdc_data = *data; |
399 | platform_device_register(&at91_lcdc_device); | |
400 | } | |
401 | #else | |
402 | void __init at91_add_device_lcdc(struct atmel_lcdfb_info *data) {} | |
403 | #endif | |
404 | ||
405 | ||
e5f40bfa AV |
406 | /* -------------------------------------------------------------------- |
407 | * Timer/Counter block | |
408 | * -------------------------------------------------------------------- */ | |
409 | ||
410 | #ifdef CONFIG_ATMEL_TCLIB | |
411 | ||
412 | static struct resource tcb_resources[] = { | |
413 | [0] = { | |
414 | .start = AT91SAM9RL_BASE_TCB0, | |
415 | .end = AT91SAM9RL_BASE_TCB0 + SZ_16K - 1, | |
416 | .flags = IORESOURCE_MEM, | |
417 | }, | |
418 | [1] = { | |
419 | .start = AT91SAM9RL_ID_TC0, | |
420 | .end = AT91SAM9RL_ID_TC0, | |
421 | .flags = IORESOURCE_IRQ, | |
422 | }, | |
423 | [2] = { | |
424 | .start = AT91SAM9RL_ID_TC1, | |
425 | .end = AT91SAM9RL_ID_TC1, | |
426 | .flags = IORESOURCE_IRQ, | |
427 | }, | |
428 | [3] = { | |
429 | .start = AT91SAM9RL_ID_TC2, | |
430 | .end = AT91SAM9RL_ID_TC2, | |
431 | .flags = IORESOURCE_IRQ, | |
432 | }, | |
433 | }; | |
434 | ||
435 | static struct platform_device at91sam9rl_tcb_device = { | |
436 | .name = "atmel_tcb", | |
437 | .id = 0, | |
438 | .resource = tcb_resources, | |
439 | .num_resources = ARRAY_SIZE(tcb_resources), | |
440 | }; | |
441 | ||
442 | static void __init at91_add_device_tc(void) | |
443 | { | |
444 | /* this chip has a separate clock and irq for each TC channel */ | |
445 | at91_clock_associate("tc0_clk", &at91sam9rl_tcb_device.dev, "t0_clk"); | |
446 | at91_clock_associate("tc1_clk", &at91sam9rl_tcb_device.dev, "t1_clk"); | |
447 | at91_clock_associate("tc2_clk", &at91sam9rl_tcb_device.dev, "t2_clk"); | |
448 | platform_device_register(&at91sam9rl_tcb_device); | |
449 | } | |
450 | #else | |
451 | static void __init at91_add_device_tc(void) { } | |
452 | #endif | |
453 | ||
454 | ||
884f5a6a AV |
455 | /* -------------------------------------------------------------------- |
456 | * RTC | |
457 | * -------------------------------------------------------------------- */ | |
458 | ||
459 | #if defined(CONFIG_RTC_DRV_AT91RM9200) || defined(CONFIG_RTC_DRV_AT91RM9200_MODULE) | |
460 | static struct platform_device at91sam9rl_rtc_device = { | |
461 | .name = "at91_rtc", | |
462 | .id = -1, | |
463 | .num_resources = 0, | |
464 | }; | |
465 | ||
466 | static void __init at91_add_device_rtc(void) | |
467 | { | |
468 | platform_device_register(&at91sam9rl_rtc_device); | |
469 | } | |
470 | #else | |
471 | static void __init at91_add_device_rtc(void) {} | |
472 | #endif | |
473 | ||
474 | ||
475 | /* -------------------------------------------------------------------- | |
476 | * RTT | |
477 | * -------------------------------------------------------------------- */ | |
478 | ||
479 | static struct resource rtt_resources[] = { | |
480 | { | |
481 | .start = AT91_BASE_SYS + AT91_RTT, | |
482 | .end = AT91_BASE_SYS + AT91_RTT + SZ_16 - 1, | |
483 | .flags = IORESOURCE_MEM, | |
484 | } | |
485 | }; | |
486 | ||
487 | static struct platform_device at91sam9rl_rtt_device = { | |
488 | .name = "at91_rtt", | |
4fd9212c | 489 | .id = 0, |
884f5a6a AV |
490 | .resource = rtt_resources, |
491 | .num_resources = ARRAY_SIZE(rtt_resources), | |
492 | }; | |
493 | ||
494 | static void __init at91_add_device_rtt(void) | |
495 | { | |
496 | platform_device_register(&at91sam9rl_rtt_device); | |
497 | } | |
498 | ||
499 | ||
500 | /* -------------------------------------------------------------------- | |
501 | * Watchdog | |
502 | * -------------------------------------------------------------------- */ | |
503 | ||
504 | #if defined(CONFIG_AT91SAM9_WATCHDOG) || defined(CONFIG_AT91SAM9_WATCHDOG_MODULE) | |
505 | static struct platform_device at91sam9rl_wdt_device = { | |
506 | .name = "at91_wdt", | |
507 | .id = -1, | |
508 | .num_resources = 0, | |
509 | }; | |
510 | ||
511 | static void __init at91_add_device_watchdog(void) | |
512 | { | |
513 | platform_device_register(&at91sam9rl_wdt_device); | |
514 | } | |
515 | #else | |
516 | static void __init at91_add_device_watchdog(void) {} | |
517 | #endif | |
518 | ||
519 | ||
bfbc3266 AV |
520 | /* -------------------------------------------------------------------- |
521 | * SSC -- Synchronous Serial Controller | |
522 | * -------------------------------------------------------------------- */ | |
523 | ||
524 | #if defined(CONFIG_ATMEL_SSC) || defined(CONFIG_ATMEL_SSC_MODULE) | |
525 | static u64 ssc0_dmamask = DMA_BIT_MASK(32); | |
526 | ||
527 | static struct resource ssc0_resources[] = { | |
528 | [0] = { | |
529 | .start = AT91SAM9RL_BASE_SSC0, | |
530 | .end = AT91SAM9RL_BASE_SSC0 + SZ_16K - 1, | |
531 | .flags = IORESOURCE_MEM, | |
532 | }, | |
533 | [1] = { | |
534 | .start = AT91SAM9RL_ID_SSC0, | |
535 | .end = AT91SAM9RL_ID_SSC0, | |
536 | .flags = IORESOURCE_IRQ, | |
537 | }, | |
538 | }; | |
539 | ||
540 | static struct platform_device at91sam9rl_ssc0_device = { | |
541 | .name = "ssc", | |
542 | .id = 0, | |
543 | .dev = { | |
544 | .dma_mask = &ssc0_dmamask, | |
545 | .coherent_dma_mask = DMA_BIT_MASK(32), | |
546 | }, | |
547 | .resource = ssc0_resources, | |
548 | .num_resources = ARRAY_SIZE(ssc0_resources), | |
549 | }; | |
550 | ||
551 | static inline void configure_ssc0_pins(unsigned pins) | |
552 | { | |
553 | if (pins & ATMEL_SSC_TF) | |
554 | at91_set_A_periph(AT91_PIN_PC0, 1); | |
555 | if (pins & ATMEL_SSC_TK) | |
556 | at91_set_A_periph(AT91_PIN_PC1, 1); | |
557 | if (pins & ATMEL_SSC_TD) | |
558 | at91_set_A_periph(AT91_PIN_PA15, 1); | |
559 | if (pins & ATMEL_SSC_RD) | |
560 | at91_set_A_periph(AT91_PIN_PA16, 1); | |
561 | if (pins & ATMEL_SSC_RK) | |
562 | at91_set_B_periph(AT91_PIN_PA10, 1); | |
563 | if (pins & ATMEL_SSC_RF) | |
564 | at91_set_B_periph(AT91_PIN_PA22, 1); | |
565 | } | |
566 | ||
567 | static u64 ssc1_dmamask = DMA_BIT_MASK(32); | |
568 | ||
569 | static struct resource ssc1_resources[] = { | |
570 | [0] = { | |
571 | .start = AT91SAM9RL_BASE_SSC1, | |
572 | .end = AT91SAM9RL_BASE_SSC1 + SZ_16K - 1, | |
573 | .flags = IORESOURCE_MEM, | |
574 | }, | |
575 | [1] = { | |
576 | .start = AT91SAM9RL_ID_SSC1, | |
577 | .end = AT91SAM9RL_ID_SSC1, | |
578 | .flags = IORESOURCE_IRQ, | |
579 | }, | |
580 | }; | |
581 | ||
582 | static struct platform_device at91sam9rl_ssc1_device = { | |
583 | .name = "ssc", | |
584 | .id = 1, | |
585 | .dev = { | |
586 | .dma_mask = &ssc1_dmamask, | |
587 | .coherent_dma_mask = DMA_BIT_MASK(32), | |
588 | }, | |
589 | .resource = ssc1_resources, | |
590 | .num_resources = ARRAY_SIZE(ssc1_resources), | |
591 | }; | |
592 | ||
593 | static inline void configure_ssc1_pins(unsigned pins) | |
594 | { | |
595 | if (pins & ATMEL_SSC_TF) | |
596 | at91_set_B_periph(AT91_PIN_PA29, 1); | |
597 | if (pins & ATMEL_SSC_TK) | |
598 | at91_set_B_periph(AT91_PIN_PA30, 1); | |
599 | if (pins & ATMEL_SSC_TD) | |
600 | at91_set_B_periph(AT91_PIN_PA13, 1); | |
601 | if (pins & ATMEL_SSC_RD) | |
602 | at91_set_B_periph(AT91_PIN_PA14, 1); | |
603 | if (pins & ATMEL_SSC_RK) | |
604 | at91_set_B_periph(AT91_PIN_PA9, 1); | |
605 | if (pins & ATMEL_SSC_RF) | |
606 | at91_set_B_periph(AT91_PIN_PA8, 1); | |
607 | } | |
608 | ||
609 | /* | |
bfbc3266 AV |
610 | * SSC controllers are accessed through library code, instead of any |
611 | * kind of all-singing/all-dancing driver. For example one could be | |
612 | * used by a particular I2S audio codec's driver, while another one | |
613 | * on the same system might be used by a custom data capture driver. | |
614 | */ | |
615 | void __init at91_add_device_ssc(unsigned id, unsigned pins) | |
616 | { | |
617 | struct platform_device *pdev; | |
618 | ||
619 | /* | |
620 | * NOTE: caller is responsible for passing information matching | |
621 | * "pins" to whatever will be using each particular controller. | |
622 | */ | |
623 | switch (id) { | |
624 | case AT91SAM9RL_ID_SSC0: | |
625 | pdev = &at91sam9rl_ssc0_device; | |
626 | configure_ssc0_pins(pins); | |
627 | at91_clock_associate("ssc0_clk", &pdev->dev, "pclk"); | |
628 | break; | |
629 | case AT91SAM9RL_ID_SSC1: | |
630 | pdev = &at91sam9rl_ssc1_device; | |
631 | configure_ssc1_pins(pins); | |
632 | at91_clock_associate("ssc1_clk", &pdev->dev, "pclk"); | |
633 | break; | |
634 | default: | |
635 | return; | |
636 | } | |
637 | ||
638 | platform_device_register(pdev); | |
639 | } | |
640 | ||
641 | #else | |
642 | void __init at91_add_device_ssc(unsigned id, unsigned pins) {} | |
643 | #endif | |
644 | ||
645 | ||
877d7720 AV |
646 | /* -------------------------------------------------------------------- |
647 | * UART | |
648 | * -------------------------------------------------------------------- */ | |
649 | ||
650 | #if defined(CONFIG_SERIAL_ATMEL) | |
651 | static struct resource dbgu_resources[] = { | |
652 | [0] = { | |
653 | .start = AT91_VA_BASE_SYS + AT91_DBGU, | |
654 | .end = AT91_VA_BASE_SYS + AT91_DBGU + SZ_512 - 1, | |
655 | .flags = IORESOURCE_MEM, | |
656 | }, | |
657 | [1] = { | |
658 | .start = AT91_ID_SYS, | |
659 | .end = AT91_ID_SYS, | |
660 | .flags = IORESOURCE_IRQ, | |
661 | }, | |
662 | }; | |
663 | ||
664 | static struct atmel_uart_data dbgu_data = { | |
665 | .use_dma_tx = 0, | |
666 | .use_dma_rx = 0, /* DBGU not capable of receive DMA */ | |
667 | .regs = (void __iomem *)(AT91_VA_BASE_SYS + AT91_DBGU), | |
668 | }; | |
669 | ||
c6686ff9 AV |
670 | static u64 dbgu_dmamask = DMA_BIT_MASK(32); |
671 | ||
877d7720 AV |
672 | static struct platform_device at91sam9rl_dbgu_device = { |
673 | .name = "atmel_usart", | |
674 | .id = 0, | |
675 | .dev = { | |
c6686ff9 AV |
676 | .dma_mask = &dbgu_dmamask, |
677 | .coherent_dma_mask = DMA_BIT_MASK(32), | |
678 | .platform_data = &dbgu_data, | |
877d7720 AV |
679 | }, |
680 | .resource = dbgu_resources, | |
681 | .num_resources = ARRAY_SIZE(dbgu_resources), | |
682 | }; | |
683 | ||
684 | static inline void configure_dbgu_pins(void) | |
685 | { | |
686 | at91_set_A_periph(AT91_PIN_PA21, 0); /* DRXD */ | |
687 | at91_set_A_periph(AT91_PIN_PA22, 1); /* DTXD */ | |
688 | } | |
689 | ||
690 | static struct resource uart0_resources[] = { | |
691 | [0] = { | |
692 | .start = AT91SAM9RL_BASE_US0, | |
693 | .end = AT91SAM9RL_BASE_US0 + SZ_16K - 1, | |
694 | .flags = IORESOURCE_MEM, | |
695 | }, | |
696 | [1] = { | |
697 | .start = AT91SAM9RL_ID_US0, | |
698 | .end = AT91SAM9RL_ID_US0, | |
699 | .flags = IORESOURCE_IRQ, | |
700 | }, | |
701 | }; | |
702 | ||
703 | static struct atmel_uart_data uart0_data = { | |
704 | .use_dma_tx = 1, | |
705 | .use_dma_rx = 1, | |
706 | }; | |
707 | ||
c6686ff9 AV |
708 | static u64 uart0_dmamask = DMA_BIT_MASK(32); |
709 | ||
877d7720 AV |
710 | static struct platform_device at91sam9rl_uart0_device = { |
711 | .name = "atmel_usart", | |
712 | .id = 1, | |
713 | .dev = { | |
c6686ff9 AV |
714 | .dma_mask = &uart0_dmamask, |
715 | .coherent_dma_mask = DMA_BIT_MASK(32), | |
716 | .platform_data = &uart0_data, | |
877d7720 AV |
717 | }, |
718 | .resource = uart0_resources, | |
719 | .num_resources = ARRAY_SIZE(uart0_resources), | |
720 | }; | |
721 | ||
c8f385a6 | 722 | static inline void configure_usart0_pins(unsigned pins) |
877d7720 AV |
723 | { |
724 | at91_set_A_periph(AT91_PIN_PA6, 1); /* TXD0 */ | |
725 | at91_set_A_periph(AT91_PIN_PA7, 0); /* RXD0 */ | |
c8f385a6 AV |
726 | |
727 | if (pins & ATMEL_UART_RTS) | |
728 | at91_set_A_periph(AT91_PIN_PA9, 0); /* RTS0 */ | |
729 | if (pins & ATMEL_UART_CTS) | |
730 | at91_set_A_periph(AT91_PIN_PA10, 0); /* CTS0 */ | |
731 | if (pins & ATMEL_UART_DSR) | |
732 | at91_set_A_periph(AT91_PIN_PD14, 0); /* DSR0 */ | |
733 | if (pins & ATMEL_UART_DTR) | |
734 | at91_set_A_periph(AT91_PIN_PD15, 0); /* DTR0 */ | |
735 | if (pins & ATMEL_UART_DCD) | |
736 | at91_set_A_periph(AT91_PIN_PD16, 0); /* DCD0 */ | |
737 | if (pins & ATMEL_UART_RI) | |
738 | at91_set_A_periph(AT91_PIN_PD17, 0); /* RI0 */ | |
877d7720 AV |
739 | } |
740 | ||
741 | static struct resource uart1_resources[] = { | |
742 | [0] = { | |
743 | .start = AT91SAM9RL_BASE_US1, | |
744 | .end = AT91SAM9RL_BASE_US1 + SZ_16K - 1, | |
745 | .flags = IORESOURCE_MEM, | |
746 | }, | |
747 | [1] = { | |
748 | .start = AT91SAM9RL_ID_US1, | |
749 | .end = AT91SAM9RL_ID_US1, | |
750 | .flags = IORESOURCE_IRQ, | |
751 | }, | |
752 | }; | |
753 | ||
754 | static struct atmel_uart_data uart1_data = { | |
755 | .use_dma_tx = 1, | |
756 | .use_dma_rx = 1, | |
757 | }; | |
758 | ||
c6686ff9 AV |
759 | static u64 uart1_dmamask = DMA_BIT_MASK(32); |
760 | ||
877d7720 AV |
761 | static struct platform_device at91sam9rl_uart1_device = { |
762 | .name = "atmel_usart", | |
763 | .id = 2, | |
764 | .dev = { | |
c6686ff9 AV |
765 | .dma_mask = &uart1_dmamask, |
766 | .coherent_dma_mask = DMA_BIT_MASK(32), | |
767 | .platform_data = &uart1_data, | |
877d7720 AV |
768 | }, |
769 | .resource = uart1_resources, | |
770 | .num_resources = ARRAY_SIZE(uart1_resources), | |
771 | }; | |
772 | ||
c8f385a6 | 773 | static inline void configure_usart1_pins(unsigned pins) |
877d7720 AV |
774 | { |
775 | at91_set_A_periph(AT91_PIN_PA11, 1); /* TXD1 */ | |
776 | at91_set_A_periph(AT91_PIN_PA12, 0); /* RXD1 */ | |
c8f385a6 AV |
777 | |
778 | if (pins & ATMEL_UART_RTS) | |
779 | at91_set_B_periph(AT91_PIN_PA18, 0); /* RTS1 */ | |
780 | if (pins & ATMEL_UART_CTS) | |
781 | at91_set_B_periph(AT91_PIN_PA19, 0); /* CTS1 */ | |
877d7720 AV |
782 | } |
783 | ||
784 | static struct resource uart2_resources[] = { | |
785 | [0] = { | |
786 | .start = AT91SAM9RL_BASE_US2, | |
787 | .end = AT91SAM9RL_BASE_US2 + SZ_16K - 1, | |
788 | .flags = IORESOURCE_MEM, | |
789 | }, | |
790 | [1] = { | |
791 | .start = AT91SAM9RL_ID_US2, | |
792 | .end = AT91SAM9RL_ID_US2, | |
793 | .flags = IORESOURCE_IRQ, | |
794 | }, | |
795 | }; | |
796 | ||
797 | static struct atmel_uart_data uart2_data = { | |
798 | .use_dma_tx = 1, | |
799 | .use_dma_rx = 1, | |
800 | }; | |
801 | ||
c6686ff9 AV |
802 | static u64 uart2_dmamask = DMA_BIT_MASK(32); |
803 | ||
877d7720 AV |
804 | static struct platform_device at91sam9rl_uart2_device = { |
805 | .name = "atmel_usart", | |
806 | .id = 3, | |
807 | .dev = { | |
c6686ff9 AV |
808 | .dma_mask = &uart2_dmamask, |
809 | .coherent_dma_mask = DMA_BIT_MASK(32), | |
810 | .platform_data = &uart2_data, | |
877d7720 AV |
811 | }, |
812 | .resource = uart2_resources, | |
813 | .num_resources = ARRAY_SIZE(uart2_resources), | |
814 | }; | |
815 | ||
c8f385a6 | 816 | static inline void configure_usart2_pins(unsigned pins) |
877d7720 AV |
817 | { |
818 | at91_set_A_periph(AT91_PIN_PA13, 1); /* TXD2 */ | |
819 | at91_set_A_periph(AT91_PIN_PA14, 0); /* RXD2 */ | |
c8f385a6 AV |
820 | |
821 | if (pins & ATMEL_UART_RTS) | |
822 | at91_set_A_periph(AT91_PIN_PA29, 0); /* RTS2 */ | |
823 | if (pins & ATMEL_UART_CTS) | |
824 | at91_set_A_periph(AT91_PIN_PA30, 0); /* CTS2 */ | |
877d7720 AV |
825 | } |
826 | ||
827 | static struct resource uart3_resources[] = { | |
828 | [0] = { | |
829 | .start = AT91SAM9RL_BASE_US3, | |
830 | .end = AT91SAM9RL_BASE_US3 + SZ_16K - 1, | |
831 | .flags = IORESOURCE_MEM, | |
832 | }, | |
833 | [1] = { | |
834 | .start = AT91SAM9RL_ID_US3, | |
835 | .end = AT91SAM9RL_ID_US3, | |
836 | .flags = IORESOURCE_IRQ, | |
837 | }, | |
838 | }; | |
839 | ||
840 | static struct atmel_uart_data uart3_data = { | |
841 | .use_dma_tx = 1, | |
842 | .use_dma_rx = 1, | |
843 | }; | |
844 | ||
c6686ff9 AV |
845 | static u64 uart3_dmamask = DMA_BIT_MASK(32); |
846 | ||
877d7720 AV |
847 | static struct platform_device at91sam9rl_uart3_device = { |
848 | .name = "atmel_usart", | |
849 | .id = 4, | |
850 | .dev = { | |
c6686ff9 AV |
851 | .dma_mask = &uart3_dmamask, |
852 | .coherent_dma_mask = DMA_BIT_MASK(32), | |
853 | .platform_data = &uart3_data, | |
877d7720 AV |
854 | }, |
855 | .resource = uart3_resources, | |
856 | .num_resources = ARRAY_SIZE(uart3_resources), | |
857 | }; | |
858 | ||
c8f385a6 | 859 | static inline void configure_usart3_pins(unsigned pins) |
877d7720 AV |
860 | { |
861 | at91_set_A_periph(AT91_PIN_PB0, 1); /* TXD3 */ | |
862 | at91_set_A_periph(AT91_PIN_PB1, 0); /* RXD3 */ | |
c8f385a6 AV |
863 | |
864 | if (pins & ATMEL_UART_RTS) | |
865 | at91_set_B_periph(AT91_PIN_PD4, 0); /* RTS3 */ | |
866 | if (pins & ATMEL_UART_CTS) | |
867 | at91_set_B_periph(AT91_PIN_PD3, 0); /* CTS3 */ | |
877d7720 AV |
868 | } |
869 | ||
11aadac4 | 870 | static struct platform_device *__initdata at91_uarts[ATMEL_MAX_UART]; /* the UARTs to use */ |
877d7720 AV |
871 | struct platform_device *atmel_default_console_device; /* the serial console device */ |
872 | ||
c8f385a6 AV |
873 | void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) |
874 | { | |
875 | struct platform_device *pdev; | |
876 | ||
877 | switch (id) { | |
878 | case 0: /* DBGU */ | |
879 | pdev = &at91sam9rl_dbgu_device; | |
880 | configure_dbgu_pins(); | |
881 | at91_clock_associate("mck", &pdev->dev, "usart"); | |
882 | break; | |
883 | case AT91SAM9RL_ID_US0: | |
884 | pdev = &at91sam9rl_uart0_device; | |
885 | configure_usart0_pins(pins); | |
886 | at91_clock_associate("usart0_clk", &pdev->dev, "usart"); | |
887 | break; | |
888 | case AT91SAM9RL_ID_US1: | |
889 | pdev = &at91sam9rl_uart1_device; | |
890 | configure_usart1_pins(pins); | |
891 | at91_clock_associate("usart1_clk", &pdev->dev, "usart"); | |
892 | break; | |
893 | case AT91SAM9RL_ID_US2: | |
894 | pdev = &at91sam9rl_uart2_device; | |
895 | configure_usart2_pins(pins); | |
896 | at91_clock_associate("usart2_clk", &pdev->dev, "usart"); | |
897 | break; | |
898 | case AT91SAM9RL_ID_US3: | |
899 | pdev = &at91sam9rl_uart3_device; | |
900 | configure_usart3_pins(pins); | |
901 | at91_clock_associate("usart3_clk", &pdev->dev, "usart"); | |
902 | break; | |
903 | default: | |
904 | return; | |
905 | } | |
906 | pdev->id = portnr; /* update to mapped ID */ | |
907 | ||
908 | if (portnr < ATMEL_MAX_UART) | |
909 | at91_uarts[portnr] = pdev; | |
910 | } | |
911 | ||
912 | void __init at91_set_serial_console(unsigned portnr) | |
913 | { | |
914 | if (portnr < ATMEL_MAX_UART) | |
915 | atmel_default_console_device = at91_uarts[portnr]; | |
c8f385a6 AV |
916 | } |
917 | ||
877d7720 AV |
918 | void __init at91_add_device_serial(void) |
919 | { | |
920 | int i; | |
921 | ||
922 | for (i = 0; i < ATMEL_MAX_UART; i++) { | |
923 | if (at91_uarts[i]) | |
924 | platform_device_register(at91_uarts[i]); | |
925 | } | |
11aadac4 AV |
926 | |
927 | if (!atmel_default_console_device) | |
928 | printk(KERN_INFO "AT91: No default serial console defined.\n"); | |
877d7720 AV |
929 | } |
930 | #else | |
c8f385a6 AV |
931 | void __init at91_register_uart(unsigned id, unsigned portnr, unsigned pins) {} |
932 | void __init at91_set_serial_console(unsigned portnr) {} | |
877d7720 AV |
933 | void __init at91_add_device_serial(void) {} |
934 | #endif | |
935 | ||
936 | ||
937 | /* -------------------------------------------------------------------- */ | |
938 | ||
939 | /* | |
940 | * These devices are always present and don't need any board-specific | |
941 | * setup. | |
942 | */ | |
943 | static int __init at91_add_standard_devices(void) | |
944 | { | |
884f5a6a AV |
945 | at91_add_device_rtc(); |
946 | at91_add_device_rtt(); | |
947 | at91_add_device_watchdog(); | |
e5f40bfa | 948 | at91_add_device_tc(); |
877d7720 AV |
949 | return 0; |
950 | } | |
951 | ||
952 | arch_initcall(at91_add_standard_devices); |