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14#include <linux/clk.h>
15#include <linux/delay.h>
16#include <linux/gpio.h>
17#include <linux/init.h>
18#include <linux/io.h>
19#include <linux/irq.h>
20#include <linux/stddef.h>
21#include <linux/i2c.h>
22#include <linux/spi/spi.h>
23#include <linux/usb/musb.h>
24#include <linux/mmc/host.h>
25#include <linux/platform_data/spi-omap2-mcspi.h>
26#include <linux/platform_data/mmc-omap.h>
27#include <linux/mfd/menelaus.h>
28#include <sound/tlv320aic3x.h>
29
30#include <asm/mach/arch.h>
31#include <asm/mach-types.h>
32
33#include "common.h"
34#include "mmc.h"
35#include "soc.h"
36#include "common-board-devices.h"
37
38#define TUSB6010_ASYNC_CS 1
39#define TUSB6010_SYNC_CS 4
40#define TUSB6010_GPIO_INT 58
41#define TUSB6010_GPIO_ENABLE 0
42#define TUSB6010_DMACHAN 0x3f
43
44#define NOKIA_N810_WIMAX (1 << 2)
45#define NOKIA_N810 (1 << 1)
46#define NOKIA_N800 (1 << 0)
47
48static u32 board_caps;
49
50#define board_is_n800() (board_caps & NOKIA_N800)
51#define board_is_n810() (board_caps & NOKIA_N810)
52#define board_is_n810_wimax() (board_caps & NOKIA_N810_WIMAX)
53
54static void board_check_revision(void)
55{
56 if (of_have_populated_dt()) {
57 if (of_machine_is_compatible("nokia,n800"))
58 board_caps = NOKIA_N800;
59 else if (of_machine_is_compatible("nokia,n810"))
60 board_caps = NOKIA_N810;
61 else if (of_machine_is_compatible("nokia,n810-wimax"))
62 board_caps = NOKIA_N810_WIMAX;
63 }
64
65 if (!board_caps)
66 pr_err("Unknown board\n");
67}
68
69#if IS_ENABLED(CONFIG_USB_MUSB_TUSB6010)
70
71
72
73
74
75static int tusb_set_power(int state)
76{
77 int i, retval = 0;
78
79 if (state) {
80 gpio_set_value(TUSB6010_GPIO_ENABLE, 1);
81 msleep(1);
82
83
84 i = 100;
85 while (i && gpio_get_value(TUSB6010_GPIO_INT)) {
86 msleep(1);
87 i--;
88 }
89
90 if (!i) {
91 printk(KERN_ERR "tusb: powerup failed\n");
92 retval = -ENODEV;
93 }
94 } else {
95 gpio_set_value(TUSB6010_GPIO_ENABLE, 0);
96 msleep(10);
97 }
98
99 return retval;
100}
101
102static struct musb_hdrc_config musb_config = {
103 .multipoint = 1,
104 .dyn_fifo = 1,
105 .num_eps = 16,
106 .ram_bits = 12,
107};
108
109static struct musb_hdrc_platform_data tusb_data = {
110 .mode = MUSB_OTG,
111 .set_power = tusb_set_power,
112 .min_power = 25,
113 .power = 100,
114 .config = &musb_config,
115};
116
117static void __init n8x0_usb_init(void)
118{
119 int ret = 0;
120 static char announce[] __initdata = KERN_INFO "TUSB 6010\n";
121
122
123 ret = gpio_request_one(TUSB6010_GPIO_ENABLE, GPIOF_OUT_INIT_LOW,
124 "TUSB6010 enable");
125 if (ret != 0) {
126 printk(KERN_ERR "Could not get TUSB power GPIO%i\n",
127 TUSB6010_GPIO_ENABLE);
128 return;
129 }
130 tusb_set_power(0);
131
132 ret = tusb6010_setup_interface(&tusb_data, TUSB6010_REFCLK_19, 2,
133 TUSB6010_ASYNC_CS, TUSB6010_SYNC_CS,
134 TUSB6010_GPIO_INT, TUSB6010_DMACHAN);
135 if (ret != 0)
136 goto err;
137
138 printk(announce);
139
140 return;
141
142err:
143 gpio_free(TUSB6010_GPIO_ENABLE);
144}
145#else
146
147static void __init n8x0_usb_init(void) {}
148
149#endif
150
151
152static struct omap2_mcspi_device_config p54spi_mcspi_config = {
153 .turbo_mode = 0,
154};
155
156static struct spi_board_info n800_spi_board_info[] __initdata = {
157 {
158 .modalias = "p54spi",
159 .bus_num = 2,
160 .chip_select = 0,
161 .max_speed_hz = 48000000,
162 .controller_data = &p54spi_mcspi_config,
163 },
164};
165
166#if defined(CONFIG_MENELAUS) && IS_ENABLED(CONFIG_MMC_OMAP)
167
168
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177
178
179#define N8X0_SLOT_SWITCH_GPIO 96
180#define N810_EMMC_VSD_GPIO 23
181#define N810_EMMC_VIO_GPIO 9
182
183static int slot1_cover_open;
184static int slot2_cover_open;
185static struct device *mmc_device;
186
187static int n8x0_mmc_switch_slot(struct device *dev, int slot)
188{
189#ifdef CONFIG_MMC_DEBUG
190 dev_dbg(dev, "Choose slot %d\n", slot + 1);
191#endif
192 gpio_set_value(N8X0_SLOT_SWITCH_GPIO, slot);
193 return 0;
194}
195
196static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot,
197 int power_on, int vdd)
198{
199 int mV;
200
201#ifdef CONFIG_MMC_DEBUG
202 dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1,
203 power_on ? "on" : "off", vdd);
204#endif
205 if (slot == 0) {
206 if (!power_on)
207 return menelaus_set_vmmc(0);
208 switch (1 << vdd) {
209 case MMC_VDD_33_34:
210 case MMC_VDD_32_33:
211 case MMC_VDD_31_32:
212 mV = 3100;
213 break;
214 case MMC_VDD_30_31:
215 mV = 3000;
216 break;
217 case MMC_VDD_28_29:
218 mV = 2800;
219 break;
220 case MMC_VDD_165_195:
221 mV = 1850;
222 break;
223 default:
224 BUG();
225 }
226 return menelaus_set_vmmc(mV);
227 } else {
228 if (!power_on)
229 return menelaus_set_vdcdc(3, 0);
230 switch (1 << vdd) {
231 case MMC_VDD_33_34:
232 case MMC_VDD_32_33:
233 mV = 3300;
234 break;
235 case MMC_VDD_30_31:
236 case MMC_VDD_29_30:
237 mV = 3000;
238 break;
239 case MMC_VDD_28_29:
240 case MMC_VDD_27_28:
241 mV = 2800;
242 break;
243 case MMC_VDD_24_25:
244 case MMC_VDD_23_24:
245 mV = 2400;
246 break;
247 case MMC_VDD_22_23:
248 case MMC_VDD_21_22:
249 mV = 2200;
250 break;
251 case MMC_VDD_20_21:
252 mV = 2000;
253 break;
254 case MMC_VDD_165_195:
255 mV = 1800;
256 break;
257 default:
258 BUG();
259 }
260 return menelaus_set_vdcdc(3, mV);
261 }
262 return 0;
263}
264
265static void n810_set_power_emmc(struct device *dev,
266 int power_on)
267{
268 dev_dbg(dev, "Set EMMC power %s\n", power_on ? "on" : "off");
269
270 if (power_on) {
271 gpio_set_value(N810_EMMC_VSD_GPIO, 1);
272 msleep(1);
273 gpio_set_value(N810_EMMC_VIO_GPIO, 1);
274 msleep(1);
275 } else {
276 gpio_set_value(N810_EMMC_VIO_GPIO, 0);
277 msleep(50);
278 gpio_set_value(N810_EMMC_VSD_GPIO, 0);
279 msleep(50);
280 }
281}
282
283static int n8x0_mmc_set_power(struct device *dev, int slot, int power_on,
284 int vdd)
285{
286 if (board_is_n800() || slot == 0)
287 return n8x0_mmc_set_power_menelaus(dev, slot, power_on, vdd);
288
289 n810_set_power_emmc(dev, power_on);
290
291 return 0;
292}
293
294static int n8x0_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode)
295{
296 int r;
297
298 dev_dbg(dev, "Set slot %d bus mode %s\n", slot + 1,
299 bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull");
300 BUG_ON(slot != 0 && slot != 1);
301 slot++;
302 switch (bus_mode) {
303 case MMC_BUSMODE_OPENDRAIN:
304 r = menelaus_set_mmc_opendrain(slot, 1);
305 break;
306 case MMC_BUSMODE_PUSHPULL:
307 r = menelaus_set_mmc_opendrain(slot, 0);
308 break;
309 default:
310 BUG();
311 }
312 if (r != 0 && printk_ratelimit())
313 dev_err(dev, "MMC: unable to set bus mode for slot %d\n",
314 slot);
315 return r;
316}
317
318static int n8x0_mmc_get_cover_state(struct device *dev, int slot)
319{
320 slot++;
321 BUG_ON(slot != 1 && slot != 2);
322 if (slot == 1)
323 return slot1_cover_open;
324 else
325 return slot2_cover_open;
326}
327
328static void n8x0_mmc_callback(void *data, u8 card_mask)
329{
330 int bit, *openp, index;
331
332 if (board_is_n800()) {
333 bit = 1 << 1;
334 openp = &slot2_cover_open;
335 index = 1;
336 } else {
337 bit = 1;
338 openp = &slot1_cover_open;
339 index = 0;
340 }
341
342 if (card_mask & bit)
343 *openp = 1;
344 else
345 *openp = 0;
346
347#ifdef CONFIG_MMC_OMAP
348 omap_mmc_notify_cover_event(mmc_device, index, *openp);
349#else
350 pr_warn("MMC: notify cover event not available\n");
351#endif
352}
353
354static int n8x0_mmc_late_init(struct device *dev)
355{
356 int r, bit, *openp;
357 int vs2sel;
358
359 mmc_device = dev;
360
361 r = menelaus_set_slot_sel(1);
362 if (r < 0)
363 return r;
364
365 if (board_is_n800())
366 vs2sel = 0;
367 else
368 vs2sel = 2;
369
370 r = menelaus_set_mmc_slot(2, 0, vs2sel, 1);
371 if (r < 0)
372 return r;
373
374 n8x0_mmc_set_power(dev, 0, MMC_POWER_ON, 16);
375 n8x0_mmc_set_power(dev, 1, MMC_POWER_ON, 16);
376
377 r = menelaus_set_mmc_slot(1, 1, 0, 1);
378 if (r < 0)
379 return r;
380 r = menelaus_set_mmc_slot(2, 1, vs2sel, 1);
381 if (r < 0)
382 return r;
383
384 r = menelaus_get_slot_pin_states();
385 if (r < 0)
386 return r;
387
388 if (board_is_n800()) {
389 bit = 1 << 1;
390 openp = &slot2_cover_open;
391 } else {
392 bit = 1;
393 openp = &slot1_cover_open;
394 slot2_cover_open = 0;
395 }
396
397
398 if (r == 0xf || r == (0xf & ~bit))
399 r = ~r;
400
401 if (r & bit)
402 *openp = 1;
403 else
404 *openp = 0;
405
406 r = menelaus_register_mmc_callback(n8x0_mmc_callback, NULL);
407
408 return r;
409}
410
411static void n8x0_mmc_shutdown(struct device *dev)
412{
413 int vs2sel;
414
415 if (board_is_n800())
416 vs2sel = 0;
417 else
418 vs2sel = 2;
419
420 menelaus_set_mmc_slot(1, 0, 0, 0);
421 menelaus_set_mmc_slot(2, 0, vs2sel, 0);
422}
423
424static void n8x0_mmc_cleanup(struct device *dev)
425{
426 menelaus_unregister_mmc_callback();
427
428 gpio_free(N8X0_SLOT_SWITCH_GPIO);
429
430 if (board_is_n810()) {
431 gpio_free(N810_EMMC_VSD_GPIO);
432 gpio_free(N810_EMMC_VIO_GPIO);
433 }
434}
435
436
437
438
439
440static struct omap_mmc_platform_data mmc1_data = {
441 .nr_slots = 0,
442 .switch_slot = n8x0_mmc_switch_slot,
443 .init = n8x0_mmc_late_init,
444 .cleanup = n8x0_mmc_cleanup,
445 .shutdown = n8x0_mmc_shutdown,
446 .max_freq = 24000000,
447 .slots[0] = {
448 .wires = 4,
449 .set_power = n8x0_mmc_set_power,
450 .set_bus_mode = n8x0_mmc_set_bus_mode,
451 .get_cover_state = n8x0_mmc_get_cover_state,
452 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_30_31 |
453 MMC_VDD_32_33 | MMC_VDD_33_34,
454 .name = "internal",
455 },
456 .slots[1] = {
457 .set_power = n8x0_mmc_set_power,
458 .set_bus_mode = n8x0_mmc_set_bus_mode,
459 .get_cover_state = n8x0_mmc_get_cover_state,
460 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_20_21 |
461 MMC_VDD_21_22 | MMC_VDD_22_23 |
462 MMC_VDD_23_24 | MMC_VDD_24_25 |
463 MMC_VDD_27_28 | MMC_VDD_28_29 |
464 MMC_VDD_29_30 | MMC_VDD_30_31 |
465 MMC_VDD_32_33 | MMC_VDD_33_34,
466 .name = "external",
467 },
468};
469
470static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC];
471
472static struct gpio n810_emmc_gpios[] __initdata = {
473 { N810_EMMC_VSD_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vddf" },
474 { N810_EMMC_VIO_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vdd" },
475};
476
477static void __init n8x0_mmc_init(void)
478{
479 int err;
480
481 if (board_is_n810()) {
482 mmc1_data.slots[0].name = "external";
483
484
485
486
487
488
489
490 mmc1_data.slots[1].name = "internal";
491 mmc1_data.slots[1].ban_openended = 1;
492 }
493
494 err = gpio_request_one(N8X0_SLOT_SWITCH_GPIO, GPIOF_OUT_INIT_LOW,
495 "MMC slot switch");
496 if (err)
497 return;
498
499 if (board_is_n810()) {
500 err = gpio_request_array(n810_emmc_gpios,
501 ARRAY_SIZE(n810_emmc_gpios));
502 if (err) {
503 gpio_free(N8X0_SLOT_SWITCH_GPIO);
504 return;
505 }
506 }
507
508 mmc1_data.nr_slots = 2;
509 mmc_data[0] = &mmc1_data;
510}
511#else
512static struct omap_mmc_platform_data mmc1_data;
513void __init n8x0_mmc_init(void)
514{
515}
516#endif
517
518#ifdef CONFIG_MENELAUS
519
520static int n8x0_auto_sleep_regulators(void)
521{
522 u32 val;
523 int ret;
524
525 val = EN_VPLL_SLEEP | EN_VMMC_SLEEP \
526 | EN_VAUX_SLEEP | EN_VIO_SLEEP \
527 | EN_VMEM_SLEEP | EN_DC3_SLEEP \
528 | EN_VC_SLEEP | EN_DC2_SLEEP;
529
530 ret = menelaus_set_regulator_sleep(1, val);
531 if (ret < 0) {
532 pr_err("Could not set regulators to sleep on menelaus: %u\n",
533 ret);
534 return ret;
535 }
536 return 0;
537}
538
539static int n8x0_auto_voltage_scale(void)
540{
541 int ret;
542
543 ret = menelaus_set_vcore_hw(1400, 1050);
544 if (ret < 0) {
545 pr_err("Could not set VCORE voltage on menelaus: %u\n", ret);
546 return ret;
547 }
548 return 0;
549}
550
551static int n8x0_menelaus_late_init(struct device *dev)
552{
553 int ret;
554
555 ret = n8x0_auto_voltage_scale();
556 if (ret < 0)
557 return ret;
558 ret = n8x0_auto_sleep_regulators();
559 if (ret < 0)
560 return ret;
561 return 0;
562}
563
564#else
565static int n8x0_menelaus_late_init(struct device *dev)
566{
567 return 0;
568}
569#endif
570
571struct menelaus_platform_data n8x0_menelaus_platform_data __initdata = {
572 .late_init = n8x0_menelaus_late_init,
573};
574
575struct aic3x_pdata n810_aic33_data __initdata = {
576 .gpio_reset = 118,
577};
578
579static int __init n8x0_late_initcall(void)
580{
581 if (!board_caps)
582 return -ENODEV;
583
584 n8x0_mmc_init();
585 n8x0_usb_init();
586
587 return 0;
588}
589omap_late_initcall(n8x0_late_initcall);
590
591
592
593
594
595void * __init n8x0_legacy_init(void)
596{
597 board_check_revision();
598 spi_register_board_info(n800_spi_board_info,
599 ARRAY_SIZE(n800_spi_board_info));
600 return &mmc1_data;
601}
602
