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11#include <linux/clk.h>
12#include <linux/delay.h>
13#include <linux/gpio.h>
14#include <linux/init.h>
15#include <linux/io.h>
16#include <linux/irq.h>
17#include <linux/stddef.h>
18#include <linux/i2c.h>
19#include <linux/spi/spi.h>
20#include <linux/usb/musb.h>
21#include <linux/mmc/host.h>
22#include <linux/platform_data/spi-omap2-mcspi.h>
23#include <linux/platform_data/mmc-omap.h>
24#include <linux/mfd/menelaus.h>
25#include <sound/tlv320aic3x.h>
26
27#include <asm/mach/arch.h>
28#include <asm/mach-types.h>
29
30#include "common.h"
31#include "mmc.h"
32#include "soc.h"
33#include "common-board-devices.h"
34
35#define TUSB6010_ASYNC_CS 1
36#define TUSB6010_SYNC_CS 4
37#define TUSB6010_GPIO_INT 58
38#define TUSB6010_GPIO_ENABLE 0
39#define TUSB6010_DMACHAN 0x3f
40
41#define NOKIA_N810_WIMAX (1 << 2)
42#define NOKIA_N810 (1 << 1)
43#define NOKIA_N800 (1 << 0)
44
45static u32 board_caps;
46
47#define board_is_n800() (board_caps & NOKIA_N800)
48#define board_is_n810() (board_caps & NOKIA_N810)
49#define board_is_n810_wimax() (board_caps & NOKIA_N810_WIMAX)
50
51static void board_check_revision(void)
52{
53 if (of_machine_is_compatible("nokia,n800"))
54 board_caps = NOKIA_N800;
55 else if (of_machine_is_compatible("nokia,n810"))
56 board_caps = NOKIA_N810;
57 else if (of_machine_is_compatible("nokia,n810-wimax"))
58 board_caps = NOKIA_N810_WIMAX;
59
60 if (!board_caps)
61 pr_err("Unknown board\n");
62}
63
64#if IS_ENABLED(CONFIG_USB_MUSB_TUSB6010)
65
66
67
68
69
70static int tusb_set_power(int state)
71{
72 int i, retval = 0;
73
74 if (state) {
75 gpio_set_value(TUSB6010_GPIO_ENABLE, 1);
76 msleep(1);
77
78
79 i = 100;
80 while (i && gpio_get_value(TUSB6010_GPIO_INT)) {
81 msleep(1);
82 i--;
83 }
84
85 if (!i) {
86 printk(KERN_ERR "tusb: powerup failed\n");
87 retval = -ENODEV;
88 }
89 } else {
90 gpio_set_value(TUSB6010_GPIO_ENABLE, 0);
91 msleep(10);
92 }
93
94 return retval;
95}
96
97static struct musb_hdrc_config musb_config = {
98 .multipoint = 1,
99 .dyn_fifo = 1,
100 .num_eps = 16,
101 .ram_bits = 12,
102};
103
104static struct musb_hdrc_platform_data tusb_data = {
105 .mode = MUSB_OTG,
106 .set_power = tusb_set_power,
107 .min_power = 25,
108 .power = 100,
109 .config = &musb_config,
110};
111
112static void __init n8x0_usb_init(void)
113{
114 int ret = 0;
115 static const char announce[] __initconst = KERN_INFO "TUSB 6010\n";
116
117
118 ret = gpio_request_one(TUSB6010_GPIO_ENABLE, GPIOF_OUT_INIT_LOW,
119 "TUSB6010 enable");
120 if (ret != 0) {
121 printk(KERN_ERR "Could not get TUSB power GPIO%i\n",
122 TUSB6010_GPIO_ENABLE);
123 return;
124 }
125 tusb_set_power(0);
126
127 ret = tusb6010_setup_interface(&tusb_data, TUSB6010_REFCLK_19, 2,
128 TUSB6010_ASYNC_CS, TUSB6010_SYNC_CS,
129 TUSB6010_GPIO_INT, TUSB6010_DMACHAN);
130 if (ret != 0)
131 goto err;
132
133 printk(announce);
134
135 return;
136
137err:
138 gpio_free(TUSB6010_GPIO_ENABLE);
139}
140#else
141
142static void __init n8x0_usb_init(void) {}
143
144#endif
145
146
147static struct omap2_mcspi_device_config p54spi_mcspi_config = {
148 .turbo_mode = 0,
149};
150
151static struct spi_board_info n800_spi_board_info[] __initdata = {
152 {
153 .modalias = "p54spi",
154 .bus_num = 2,
155 .chip_select = 0,
156 .max_speed_hz = 48000000,
157 .controller_data = &p54spi_mcspi_config,
158 },
159};
160
161#if defined(CONFIG_MENELAUS) && IS_ENABLED(CONFIG_MMC_OMAP)
162
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172
173
174#define N8X0_SLOT_SWITCH_GPIO 96
175#define N810_EMMC_VSD_GPIO 23
176#define N810_EMMC_VIO_GPIO 9
177
178static int slot1_cover_open;
179static int slot2_cover_open;
180static struct device *mmc_device;
181
182static int n8x0_mmc_switch_slot(struct device *dev, int slot)
183{
184#ifdef CONFIG_MMC_DEBUG
185 dev_dbg(dev, "Choose slot %d\n", slot + 1);
186#endif
187 gpio_set_value(N8X0_SLOT_SWITCH_GPIO, slot);
188 return 0;
189}
190
191static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot,
192 int power_on, int vdd)
193{
194 int mV;
195
196#ifdef CONFIG_MMC_DEBUG
197 dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1,
198 power_on ? "on" : "off", vdd);
199#endif
200 if (slot == 0) {
201 if (!power_on)
202 return menelaus_set_vmmc(0);
203 switch (1 << vdd) {
204 case MMC_VDD_33_34:
205 case MMC_VDD_32_33:
206 case MMC_VDD_31_32:
207 mV = 3100;
208 break;
209 case MMC_VDD_30_31:
210 mV = 3000;
211 break;
212 case MMC_VDD_28_29:
213 mV = 2800;
214 break;
215 case MMC_VDD_165_195:
216 mV = 1850;
217 break;
218 default:
219 BUG();
220 }
221 return menelaus_set_vmmc(mV);
222 } else {
223 if (!power_on)
224 return menelaus_set_vdcdc(3, 0);
225 switch (1 << vdd) {
226 case MMC_VDD_33_34:
227 case MMC_VDD_32_33:
228 mV = 3300;
229 break;
230 case MMC_VDD_30_31:
231 case MMC_VDD_29_30:
232 mV = 3000;
233 break;
234 case MMC_VDD_28_29:
235 case MMC_VDD_27_28:
236 mV = 2800;
237 break;
238 case MMC_VDD_24_25:
239 case MMC_VDD_23_24:
240 mV = 2400;
241 break;
242 case MMC_VDD_22_23:
243 case MMC_VDD_21_22:
244 mV = 2200;
245 break;
246 case MMC_VDD_20_21:
247 mV = 2000;
248 break;
249 case MMC_VDD_165_195:
250 mV = 1800;
251 break;
252 default:
253 BUG();
254 }
255 return menelaus_set_vdcdc(3, mV);
256 }
257 return 0;
258}
259
260static void n810_set_power_emmc(struct device *dev,
261 int power_on)
262{
263 dev_dbg(dev, "Set EMMC power %s\n", power_on ? "on" : "off");
264
265 if (power_on) {
266 gpio_set_value(N810_EMMC_VSD_GPIO, 1);
267 msleep(1);
268 gpio_set_value(N810_EMMC_VIO_GPIO, 1);
269 msleep(1);
270 } else {
271 gpio_set_value(N810_EMMC_VIO_GPIO, 0);
272 msleep(50);
273 gpio_set_value(N810_EMMC_VSD_GPIO, 0);
274 msleep(50);
275 }
276}
277
278static int n8x0_mmc_set_power(struct device *dev, int slot, int power_on,
279 int vdd)
280{
281 if (board_is_n800() || slot == 0)
282 return n8x0_mmc_set_power_menelaus(dev, slot, power_on, vdd);
283
284 n810_set_power_emmc(dev, power_on);
285
286 return 0;
287}
288
289static int n8x0_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode)
290{
291 int r;
292
293 dev_dbg(dev, "Set slot %d bus mode %s\n", slot + 1,
294 bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull");
295 BUG_ON(slot != 0 && slot != 1);
296 slot++;
297 switch (bus_mode) {
298 case MMC_BUSMODE_OPENDRAIN:
299 r = menelaus_set_mmc_opendrain(slot, 1);
300 break;
301 case MMC_BUSMODE_PUSHPULL:
302 r = menelaus_set_mmc_opendrain(slot, 0);
303 break;
304 default:
305 BUG();
306 }
307 if (r != 0 && printk_ratelimit())
308 dev_err(dev, "MMC: unable to set bus mode for slot %d\n",
309 slot);
310 return r;
311}
312
313static int n8x0_mmc_get_cover_state(struct device *dev, int slot)
314{
315 slot++;
316 BUG_ON(slot != 1 && slot != 2);
317 if (slot == 1)
318 return slot1_cover_open;
319 else
320 return slot2_cover_open;
321}
322
323static void n8x0_mmc_callback(void *data, u8 card_mask)
324{
325 int bit, *openp, index;
326
327 if (board_is_n800()) {
328 bit = 1 << 1;
329 openp = &slot2_cover_open;
330 index = 1;
331 } else {
332 bit = 1;
333 openp = &slot1_cover_open;
334 index = 0;
335 }
336
337 if (card_mask & bit)
338 *openp = 1;
339 else
340 *openp = 0;
341
342#ifdef CONFIG_MMC_OMAP
343 omap_mmc_notify_cover_event(mmc_device, index, *openp);
344#else
345 pr_warn("MMC: notify cover event not available\n");
346#endif
347}
348
349static int n8x0_mmc_late_init(struct device *dev)
350{
351 int r, bit, *openp;
352 int vs2sel;
353
354 mmc_device = dev;
355
356 r = menelaus_set_slot_sel(1);
357 if (r < 0)
358 return r;
359
360 if (board_is_n800())
361 vs2sel = 0;
362 else
363 vs2sel = 2;
364
365 r = menelaus_set_mmc_slot(2, 0, vs2sel, 1);
366 if (r < 0)
367 return r;
368
369 n8x0_mmc_set_power(dev, 0, MMC_POWER_ON, 16);
370 n8x0_mmc_set_power(dev, 1, MMC_POWER_ON, 16);
371
372 r = menelaus_set_mmc_slot(1, 1, 0, 1);
373 if (r < 0)
374 return r;
375 r = menelaus_set_mmc_slot(2, 1, vs2sel, 1);
376 if (r < 0)
377 return r;
378
379 r = menelaus_get_slot_pin_states();
380 if (r < 0)
381 return r;
382
383 if (board_is_n800()) {
384 bit = 1 << 1;
385 openp = &slot2_cover_open;
386 } else {
387 bit = 1;
388 openp = &slot1_cover_open;
389 slot2_cover_open = 0;
390 }
391
392
393 if (r == 0xf || r == (0xf & ~bit))
394 r = ~r;
395
396 if (r & bit)
397 *openp = 1;
398 else
399 *openp = 0;
400
401 r = menelaus_register_mmc_callback(n8x0_mmc_callback, NULL);
402
403 return r;
404}
405
406static void n8x0_mmc_shutdown(struct device *dev)
407{
408 int vs2sel;
409
410 if (board_is_n800())
411 vs2sel = 0;
412 else
413 vs2sel = 2;
414
415 menelaus_set_mmc_slot(1, 0, 0, 0);
416 menelaus_set_mmc_slot(2, 0, vs2sel, 0);
417}
418
419static void n8x0_mmc_cleanup(struct device *dev)
420{
421 menelaus_unregister_mmc_callback();
422
423 gpio_free(N8X0_SLOT_SWITCH_GPIO);
424
425 if (board_is_n810()) {
426 gpio_free(N810_EMMC_VSD_GPIO);
427 gpio_free(N810_EMMC_VIO_GPIO);
428 }
429}
430
431
432
433
434
435static struct omap_mmc_platform_data mmc1_data = {
436 .nr_slots = 0,
437 .switch_slot = n8x0_mmc_switch_slot,
438 .init = n8x0_mmc_late_init,
439 .cleanup = n8x0_mmc_cleanup,
440 .shutdown = n8x0_mmc_shutdown,
441 .max_freq = 24000000,
442 .slots[0] = {
443 .wires = 4,
444 .set_power = n8x0_mmc_set_power,
445 .set_bus_mode = n8x0_mmc_set_bus_mode,
446 .get_cover_state = n8x0_mmc_get_cover_state,
447 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_30_31 |
448 MMC_VDD_32_33 | MMC_VDD_33_34,
449 .name = "internal",
450 },
451 .slots[1] = {
452 .set_power = n8x0_mmc_set_power,
453 .set_bus_mode = n8x0_mmc_set_bus_mode,
454 .get_cover_state = n8x0_mmc_get_cover_state,
455 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_20_21 |
456 MMC_VDD_21_22 | MMC_VDD_22_23 |
457 MMC_VDD_23_24 | MMC_VDD_24_25 |
458 MMC_VDD_27_28 | MMC_VDD_28_29 |
459 MMC_VDD_29_30 | MMC_VDD_30_31 |
460 MMC_VDD_32_33 | MMC_VDD_33_34,
461 .name = "external",
462 },
463};
464
465static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC];
466
467static struct gpio n810_emmc_gpios[] __initdata = {
468 { N810_EMMC_VSD_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vddf" },
469 { N810_EMMC_VIO_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vdd" },
470};
471
472static void __init n8x0_mmc_init(void)
473{
474 int err;
475
476 if (board_is_n810()) {
477 mmc1_data.slots[0].name = "external";
478
479
480
481
482
483
484
485 mmc1_data.slots[1].name = "internal";
486 mmc1_data.slots[1].ban_openended = 1;
487 }
488
489 err = gpio_request_one(N8X0_SLOT_SWITCH_GPIO, GPIOF_OUT_INIT_LOW,
490 "MMC slot switch");
491 if (err)
492 return;
493
494 if (board_is_n810()) {
495 err = gpio_request_array(n810_emmc_gpios,
496 ARRAY_SIZE(n810_emmc_gpios));
497 if (err) {
498 gpio_free(N8X0_SLOT_SWITCH_GPIO);
499 return;
500 }
501 }
502
503 mmc1_data.nr_slots = 2;
504 mmc_data[0] = &mmc1_data;
505}
506#else
507static struct omap_mmc_platform_data mmc1_data;
508void __init n8x0_mmc_init(void)
509{
510}
511#endif
512
513#ifdef CONFIG_MENELAUS
514
515static int n8x0_auto_sleep_regulators(void)
516{
517 u32 val;
518 int ret;
519
520 val = EN_VPLL_SLEEP | EN_VMMC_SLEEP \
521 | EN_VAUX_SLEEP | EN_VIO_SLEEP \
522 | EN_VMEM_SLEEP | EN_DC3_SLEEP \
523 | EN_VC_SLEEP | EN_DC2_SLEEP;
524
525 ret = menelaus_set_regulator_sleep(1, val);
526 if (ret < 0) {
527 pr_err("Could not set regulators to sleep on menelaus: %u\n",
528 ret);
529 return ret;
530 }
531 return 0;
532}
533
534static int n8x0_auto_voltage_scale(void)
535{
536 int ret;
537
538 ret = menelaus_set_vcore_hw(1400, 1050);
539 if (ret < 0) {
540 pr_err("Could not set VCORE voltage on menelaus: %u\n", ret);
541 return ret;
542 }
543 return 0;
544}
545
546static int n8x0_menelaus_late_init(struct device *dev)
547{
548 int ret;
549
550 ret = n8x0_auto_voltage_scale();
551 if (ret < 0)
552 return ret;
553 ret = n8x0_auto_sleep_regulators();
554 if (ret < 0)
555 return ret;
556 return 0;
557}
558
559#else
560static int n8x0_menelaus_late_init(struct device *dev)
561{
562 return 0;
563}
564#endif
565
566struct menelaus_platform_data n8x0_menelaus_platform_data = {
567 .late_init = n8x0_menelaus_late_init,
568};
569
570struct aic3x_pdata n810_aic33_data = {
571 .gpio_reset = 118,
572};
573
574static int __init n8x0_late_initcall(void)
575{
576 if (!board_caps)
577 return -ENODEV;
578
579 n8x0_mmc_init();
580 n8x0_usb_init();
581
582 return 0;
583}
584omap_late_initcall(n8x0_late_initcall);
585
586
587
588
589
590void * __init n8x0_legacy_init(void)
591{
592 board_check_revision();
593 spi_register_board_info(n800_spi_board_info,
594 ARRAY_SIZE(n800_spi_board_info));
595 return &mmc1_data;
596}
597
