ARM: OMAP2+: Prepare for irqs.h removal
[deliverable/linux.git] / arch / arm / mach-omap2 / board-n8x0.c
1 /*
2 * linux/arch/arm/mach-omap2/board-n8x0.c
3 *
4 * Copyright (C) 2005-2009 Nokia Corporation
5 * Author: Juha Yrjola <juha.yrjola@nokia.com>
6 *
7 * Modified from mach-omap2/board-generic.c
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
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/stddef.h>
20 #include <linux/i2c.h>
21 #include <linux/spi/spi.h>
22 #include <linux/usb/musb.h>
23 #include <sound/tlv320aic3x.h>
24
25 #include <asm/mach/arch.h>
26 #include <asm/mach-types.h>
27
28 #include "common.h"
29 #include <plat/menelaus.h>
30 #include <plat/mcspi.h>
31 #include <plat/onenand.h>
32 #include <plat/mmc.h>
33 #include <plat/serial.h>
34
35 #include "mux.h"
36
37 #define TUSB6010_ASYNC_CS 1
38 #define TUSB6010_SYNC_CS 4
39 #define TUSB6010_GPIO_INT 58
40 #define TUSB6010_GPIO_ENABLE 0
41 #define TUSB6010_DMACHAN 0x3f
42
43 #if defined(CONFIG_USB_MUSB_TUSB6010) || defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
44 /*
45 * Enable or disable power to TUSB6010. When enabling, turn on 3.3 V and
46 * 1.5 V voltage regulators of PM companion chip. Companion chip will then
47 * provide then PGOOD signal to TUSB6010 which will release it from reset.
48 */
49 static int tusb_set_power(int state)
50 {
51 int i, retval = 0;
52
53 if (state) {
54 gpio_set_value(TUSB6010_GPIO_ENABLE, 1);
55 msleep(1);
56
57 /* Wait until TUSB6010 pulls INT pin down */
58 i = 100;
59 while (i && gpio_get_value(TUSB6010_GPIO_INT)) {
60 msleep(1);
61 i--;
62 }
63
64 if (!i) {
65 printk(KERN_ERR "tusb: powerup failed\n");
66 retval = -ENODEV;
67 }
68 } else {
69 gpio_set_value(TUSB6010_GPIO_ENABLE, 0);
70 msleep(10);
71 }
72
73 return retval;
74 }
75
76 static struct musb_hdrc_config musb_config = {
77 .multipoint = 1,
78 .dyn_fifo = 1,
79 .num_eps = 16,
80 .ram_bits = 12,
81 };
82
83 static struct musb_hdrc_platform_data tusb_data = {
84 #ifdef CONFIG_USB_GADGET_MUSB_HDRC
85 .mode = MUSB_OTG,
86 #else
87 .mode = MUSB_HOST,
88 #endif
89 .set_power = tusb_set_power,
90 .min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */
91 .power = 100, /* Max 100 mA VBUS for host mode */
92 .config = &musb_config,
93 };
94
95 static void __init n8x0_usb_init(void)
96 {
97 int ret = 0;
98 static char announce[] __initdata = KERN_INFO "TUSB 6010\n";
99
100 /* PM companion chip power control pin */
101 ret = gpio_request_one(TUSB6010_GPIO_ENABLE, GPIOF_OUT_INIT_LOW,
102 "TUSB6010 enable");
103 if (ret != 0) {
104 printk(KERN_ERR "Could not get TUSB power GPIO%i\n",
105 TUSB6010_GPIO_ENABLE);
106 return;
107 }
108 tusb_set_power(0);
109
110 ret = tusb6010_setup_interface(&tusb_data, TUSB6010_REFCLK_19, 2,
111 TUSB6010_ASYNC_CS, TUSB6010_SYNC_CS,
112 TUSB6010_GPIO_INT, TUSB6010_DMACHAN);
113 if (ret != 0)
114 goto err;
115
116 printk(announce);
117
118 return;
119
120 err:
121 gpio_free(TUSB6010_GPIO_ENABLE);
122 }
123 #else
124
125 static void __init n8x0_usb_init(void) {}
126
127 #endif /*CONFIG_USB_MUSB_TUSB6010 */
128
129
130 static struct omap2_mcspi_device_config p54spi_mcspi_config = {
131 .turbo_mode = 0,
132 };
133
134 static struct spi_board_info n800_spi_board_info[] __initdata = {
135 {
136 .modalias = "p54spi",
137 .bus_num = 2,
138 .chip_select = 0,
139 .max_speed_hz = 48000000,
140 .controller_data = &p54spi_mcspi_config,
141 },
142 };
143
144 #if defined(CONFIG_MTD_ONENAND_OMAP2) || \
145 defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
146
147 static struct mtd_partition onenand_partitions[] = {
148 {
149 .name = "bootloader",
150 .offset = 0,
151 .size = 0x20000,
152 .mask_flags = MTD_WRITEABLE, /* Force read-only */
153 },
154 {
155 .name = "config",
156 .offset = MTDPART_OFS_APPEND,
157 .size = 0x60000,
158 },
159 {
160 .name = "kernel",
161 .offset = MTDPART_OFS_APPEND,
162 .size = 0x200000,
163 },
164 {
165 .name = "initfs",
166 .offset = MTDPART_OFS_APPEND,
167 .size = 0x400000,
168 },
169 {
170 .name = "rootfs",
171 .offset = MTDPART_OFS_APPEND,
172 .size = MTDPART_SIZ_FULL,
173 },
174 };
175
176 static struct omap_onenand_platform_data board_onenand_data[] = {
177 {
178 .cs = 0,
179 .gpio_irq = 26,
180 .parts = onenand_partitions,
181 .nr_parts = ARRAY_SIZE(onenand_partitions),
182 .flags = ONENAND_SYNC_READ,
183 }
184 };
185 #endif
186
187 #if defined(CONFIG_MENELAUS) && \
188 (defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE))
189
190 /*
191 * On both N800 and N810, only the first of the two MMC controllers is in use.
192 * The two MMC slots are multiplexed via Menelaus companion chip over I2C.
193 * On N800, both slots are powered via Menelaus. On N810, only one of the
194 * slots is powered via Menelaus. The N810 EMMC is powered via GPIO.
195 *
196 * VMMC slot 1 on both N800 and N810
197 * VDCDC3_APE and VMCS2_APE slot 2 on N800
198 * GPIO23 and GPIO9 slot 2 EMMC on N810
199 *
200 */
201 #define N8X0_SLOT_SWITCH_GPIO 96
202 #define N810_EMMC_VSD_GPIO 23
203 #define N810_EMMC_VIO_GPIO 9
204
205 static int slot1_cover_open;
206 static int slot2_cover_open;
207 static struct device *mmc_device;
208
209 static int n8x0_mmc_switch_slot(struct device *dev, int slot)
210 {
211 #ifdef CONFIG_MMC_DEBUG
212 dev_dbg(dev, "Choose slot %d\n", slot + 1);
213 #endif
214 gpio_set_value(N8X0_SLOT_SWITCH_GPIO, slot);
215 return 0;
216 }
217
218 static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot,
219 int power_on, int vdd)
220 {
221 int mV;
222
223 #ifdef CONFIG_MMC_DEBUG
224 dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1,
225 power_on ? "on" : "off", vdd);
226 #endif
227 if (slot == 0) {
228 if (!power_on)
229 return menelaus_set_vmmc(0);
230 switch (1 << vdd) {
231 case MMC_VDD_33_34:
232 case MMC_VDD_32_33:
233 case MMC_VDD_31_32:
234 mV = 3100;
235 break;
236 case MMC_VDD_30_31:
237 mV = 3000;
238 break;
239 case MMC_VDD_28_29:
240 mV = 2800;
241 break;
242 case MMC_VDD_165_195:
243 mV = 1850;
244 break;
245 default:
246 BUG();
247 }
248 return menelaus_set_vmmc(mV);
249 } else {
250 if (!power_on)
251 return menelaus_set_vdcdc(3, 0);
252 switch (1 << vdd) {
253 case MMC_VDD_33_34:
254 case MMC_VDD_32_33:
255 mV = 3300;
256 break;
257 case MMC_VDD_30_31:
258 case MMC_VDD_29_30:
259 mV = 3000;
260 break;
261 case MMC_VDD_28_29:
262 case MMC_VDD_27_28:
263 mV = 2800;
264 break;
265 case MMC_VDD_24_25:
266 case MMC_VDD_23_24:
267 mV = 2400;
268 break;
269 case MMC_VDD_22_23:
270 case MMC_VDD_21_22:
271 mV = 2200;
272 break;
273 case MMC_VDD_20_21:
274 mV = 2000;
275 break;
276 case MMC_VDD_165_195:
277 mV = 1800;
278 break;
279 default:
280 BUG();
281 }
282 return menelaus_set_vdcdc(3, mV);
283 }
284 return 0;
285 }
286
287 static void n810_set_power_emmc(struct device *dev,
288 int power_on)
289 {
290 dev_dbg(dev, "Set EMMC power %s\n", power_on ? "on" : "off");
291
292 if (power_on) {
293 gpio_set_value(N810_EMMC_VSD_GPIO, 1);
294 msleep(1);
295 gpio_set_value(N810_EMMC_VIO_GPIO, 1);
296 msleep(1);
297 } else {
298 gpio_set_value(N810_EMMC_VIO_GPIO, 0);
299 msleep(50);
300 gpio_set_value(N810_EMMC_VSD_GPIO, 0);
301 msleep(50);
302 }
303 }
304
305 static int n8x0_mmc_set_power(struct device *dev, int slot, int power_on,
306 int vdd)
307 {
308 if (machine_is_nokia_n800() || slot == 0)
309 return n8x0_mmc_set_power_menelaus(dev, slot, power_on, vdd);
310
311 n810_set_power_emmc(dev, power_on);
312
313 return 0;
314 }
315
316 static int n8x0_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode)
317 {
318 int r;
319
320 dev_dbg(dev, "Set slot %d bus mode %s\n", slot + 1,
321 bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull");
322 BUG_ON(slot != 0 && slot != 1);
323 slot++;
324 switch (bus_mode) {
325 case MMC_BUSMODE_OPENDRAIN:
326 r = menelaus_set_mmc_opendrain(slot, 1);
327 break;
328 case MMC_BUSMODE_PUSHPULL:
329 r = menelaus_set_mmc_opendrain(slot, 0);
330 break;
331 default:
332 BUG();
333 }
334 if (r != 0 && printk_ratelimit())
335 dev_err(dev, "MMC: unable to set bus mode for slot %d\n",
336 slot);
337 return r;
338 }
339
340 static int n8x0_mmc_get_cover_state(struct device *dev, int slot)
341 {
342 slot++;
343 BUG_ON(slot != 1 && slot != 2);
344 if (slot == 1)
345 return slot1_cover_open;
346 else
347 return slot2_cover_open;
348 }
349
350 static void n8x0_mmc_callback(void *data, u8 card_mask)
351 {
352 int bit, *openp, index;
353
354 if (machine_is_nokia_n800()) {
355 bit = 1 << 1;
356 openp = &slot2_cover_open;
357 index = 1;
358 } else {
359 bit = 1;
360 openp = &slot1_cover_open;
361 index = 0;
362 }
363
364 if (card_mask & bit)
365 *openp = 1;
366 else
367 *openp = 0;
368
369 #ifdef CONFIG_MMC_OMAP
370 omap_mmc_notify_cover_event(mmc_device, index, *openp);
371 #else
372 pr_warn("MMC: notify cover event not available\n");
373 #endif
374 }
375
376 static int n8x0_mmc_late_init(struct device *dev)
377 {
378 int r, bit, *openp;
379 int vs2sel;
380
381 mmc_device = dev;
382
383 r = menelaus_set_slot_sel(1);
384 if (r < 0)
385 return r;
386
387 if (machine_is_nokia_n800())
388 vs2sel = 0;
389 else
390 vs2sel = 2;
391
392 r = menelaus_set_mmc_slot(2, 0, vs2sel, 1);
393 if (r < 0)
394 return r;
395
396 n8x0_mmc_set_power(dev, 0, MMC_POWER_ON, 16); /* MMC_VDD_28_29 */
397 n8x0_mmc_set_power(dev, 1, MMC_POWER_ON, 16);
398
399 r = menelaus_set_mmc_slot(1, 1, 0, 1);
400 if (r < 0)
401 return r;
402 r = menelaus_set_mmc_slot(2, 1, vs2sel, 1);
403 if (r < 0)
404 return r;
405
406 r = menelaus_get_slot_pin_states();
407 if (r < 0)
408 return r;
409
410 if (machine_is_nokia_n800()) {
411 bit = 1 << 1;
412 openp = &slot2_cover_open;
413 } else {
414 bit = 1;
415 openp = &slot1_cover_open;
416 slot2_cover_open = 0;
417 }
418
419 /* All slot pin bits seem to be inversed until first switch change */
420 if (r == 0xf || r == (0xf & ~bit))
421 r = ~r;
422
423 if (r & bit)
424 *openp = 1;
425 else
426 *openp = 0;
427
428 r = menelaus_register_mmc_callback(n8x0_mmc_callback, NULL);
429
430 return r;
431 }
432
433 static void n8x0_mmc_shutdown(struct device *dev)
434 {
435 int vs2sel;
436
437 if (machine_is_nokia_n800())
438 vs2sel = 0;
439 else
440 vs2sel = 2;
441
442 menelaus_set_mmc_slot(1, 0, 0, 0);
443 menelaus_set_mmc_slot(2, 0, vs2sel, 0);
444 }
445
446 static void n8x0_mmc_cleanup(struct device *dev)
447 {
448 menelaus_unregister_mmc_callback();
449
450 gpio_free(N8X0_SLOT_SWITCH_GPIO);
451
452 if (machine_is_nokia_n810()) {
453 gpio_free(N810_EMMC_VSD_GPIO);
454 gpio_free(N810_EMMC_VIO_GPIO);
455 }
456 }
457
458 /*
459 * MMC controller1 has two slots that are multiplexed via I2C.
460 * MMC controller2 is not in use.
461 */
462 static struct omap_mmc_platform_data mmc1_data = {
463 .nr_slots = 2,
464 .switch_slot = n8x0_mmc_switch_slot,
465 .init = n8x0_mmc_late_init,
466 .cleanup = n8x0_mmc_cleanup,
467 .shutdown = n8x0_mmc_shutdown,
468 .max_freq = 24000000,
469 .slots[0] = {
470 .wires = 4,
471 .set_power = n8x0_mmc_set_power,
472 .set_bus_mode = n8x0_mmc_set_bus_mode,
473 .get_cover_state = n8x0_mmc_get_cover_state,
474 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_30_31 |
475 MMC_VDD_32_33 | MMC_VDD_33_34,
476 .name = "internal",
477 },
478 .slots[1] = {
479 .set_power = n8x0_mmc_set_power,
480 .set_bus_mode = n8x0_mmc_set_bus_mode,
481 .get_cover_state = n8x0_mmc_get_cover_state,
482 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_20_21 |
483 MMC_VDD_21_22 | MMC_VDD_22_23 |
484 MMC_VDD_23_24 | MMC_VDD_24_25 |
485 MMC_VDD_27_28 | MMC_VDD_28_29 |
486 MMC_VDD_29_30 | MMC_VDD_30_31 |
487 MMC_VDD_32_33 | MMC_VDD_33_34,
488 .name = "external",
489 },
490 };
491
492 static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC];
493
494 static struct gpio n810_emmc_gpios[] __initdata = {
495 { N810_EMMC_VSD_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vddf" },
496 { N810_EMMC_VIO_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vdd" },
497 };
498
499 static void __init n8x0_mmc_init(void)
500 {
501 int err;
502
503 if (machine_is_nokia_n810()) {
504 mmc1_data.slots[0].name = "external";
505
506 /*
507 * Some Samsung Movinand chips do not like open-ended
508 * multi-block reads and fall to braind-dead state
509 * while doing so. Reducing the number of blocks in
510 * the transfer or delays in clock disable do not help
511 */
512 mmc1_data.slots[1].name = "internal";
513 mmc1_data.slots[1].ban_openended = 1;
514 }
515
516 err = gpio_request_one(N8X0_SLOT_SWITCH_GPIO, GPIOF_OUT_INIT_LOW,
517 "MMC slot switch");
518 if (err)
519 return;
520
521 if (machine_is_nokia_n810()) {
522 err = gpio_request_array(n810_emmc_gpios,
523 ARRAY_SIZE(n810_emmc_gpios));
524 if (err) {
525 gpio_free(N8X0_SLOT_SWITCH_GPIO);
526 return;
527 }
528 }
529
530 mmc_data[0] = &mmc1_data;
531 omap242x_init_mmc(mmc_data);
532 }
533 #else
534
535 void __init n8x0_mmc_init(void)
536 {
537 }
538 #endif /* CONFIG_MMC_OMAP */
539
540 #ifdef CONFIG_MENELAUS
541
542 static int n8x0_auto_sleep_regulators(void)
543 {
544 u32 val;
545 int ret;
546
547 val = EN_VPLL_SLEEP | EN_VMMC_SLEEP \
548 | EN_VAUX_SLEEP | EN_VIO_SLEEP \
549 | EN_VMEM_SLEEP | EN_DC3_SLEEP \
550 | EN_VC_SLEEP | EN_DC2_SLEEP;
551
552 ret = menelaus_set_regulator_sleep(1, val);
553 if (ret < 0) {
554 printk(KERN_ERR "Could not set regulators to sleep on "
555 "menelaus: %u\n", ret);
556 return ret;
557 }
558 return 0;
559 }
560
561 static int n8x0_auto_voltage_scale(void)
562 {
563 int ret;
564
565 ret = menelaus_set_vcore_hw(1400, 1050);
566 if (ret < 0) {
567 printk(KERN_ERR "Could not set VCORE voltage on "
568 "menelaus: %u\n", ret);
569 return ret;
570 }
571 return 0;
572 }
573
574 static int n8x0_menelaus_late_init(struct device *dev)
575 {
576 int ret;
577
578 ret = n8x0_auto_voltage_scale();
579 if (ret < 0)
580 return ret;
581 ret = n8x0_auto_sleep_regulators();
582 if (ret < 0)
583 return ret;
584 return 0;
585 }
586
587 #else
588 static int n8x0_menelaus_late_init(struct device *dev)
589 {
590 return 0;
591 }
592 #endif
593
594 static struct menelaus_platform_data n8x0_menelaus_platform_data __initdata = {
595 .late_init = n8x0_menelaus_late_init,
596 };
597
598 static struct i2c_board_info __initdata n8x0_i2c_board_info_1[] __initdata = {
599 {
600 I2C_BOARD_INFO("menelaus", 0x72),
601 .irq = 7 + OMAP_INTC_START,
602 .platform_data = &n8x0_menelaus_platform_data,
603 },
604 };
605
606 static struct aic3x_pdata n810_aic33_data __initdata = {
607 .gpio_reset = 118,
608 };
609
610 static struct i2c_board_info n810_i2c_board_info_2[] __initdata = {
611 {
612 I2C_BOARD_INFO("tlv320aic3x", 0x18),
613 .platform_data = &n810_aic33_data,
614 },
615 };
616
617 #ifdef CONFIG_OMAP_MUX
618 static struct omap_board_mux board_mux[] __initdata = {
619 /* I2S codec port pins for McBSP block */
620 OMAP2420_MUX(EAC_AC_SCLK, OMAP_MUX_MODE1 | OMAP_PIN_INPUT),
621 OMAP2420_MUX(EAC_AC_FS, OMAP_MUX_MODE1 | OMAP_PIN_INPUT),
622 OMAP2420_MUX(EAC_AC_DIN, OMAP_MUX_MODE1 | OMAP_PIN_INPUT),
623 OMAP2420_MUX(EAC_AC_DOUT, OMAP_MUX_MODE1 | OMAP_PIN_OUTPUT),
624 { .reg_offset = OMAP_MUX_TERMINATOR },
625 };
626
627 static struct omap_device_pad serial2_pads[] __initdata = {
628 {
629 .name = "uart3_rx_irrx.uart3_rx_irrx",
630 .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP,
631 .enable = OMAP_MUX_MODE0,
632 .idle = OMAP_MUX_MODE3 /* Mux as GPIO for idle */
633 },
634 };
635
636 static inline void board_serial_init(void)
637 {
638 struct omap_board_data bdata;
639
640 bdata.flags = 0;
641 bdata.pads = NULL;
642 bdata.pads_cnt = 0;
643
644 bdata.id = 0;
645 omap_serial_init_port(&bdata, NULL);
646
647 bdata.id = 1;
648 omap_serial_init_port(&bdata, NULL);
649
650 bdata.id = 2;
651 bdata.pads = serial2_pads;
652 bdata.pads_cnt = ARRAY_SIZE(serial2_pads);
653 omap_serial_init_port(&bdata, NULL);
654 }
655
656 #else
657
658 static inline void board_serial_init(void)
659 {
660 omap_serial_init();
661 }
662
663 #endif
664
665 static void __init n8x0_init_machine(void)
666 {
667 omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC);
668 /* FIXME: add n810 spi devices */
669 spi_register_board_info(n800_spi_board_info,
670 ARRAY_SIZE(n800_spi_board_info));
671 omap_register_i2c_bus(1, 400, n8x0_i2c_board_info_1,
672 ARRAY_SIZE(n8x0_i2c_board_info_1));
673 omap_register_i2c_bus(2, 400, NULL, 0);
674 if (machine_is_nokia_n810())
675 i2c_register_board_info(2, n810_i2c_board_info_2,
676 ARRAY_SIZE(n810_i2c_board_info_2));
677 board_serial_init();
678 omap_sdrc_init(NULL, NULL);
679 gpmc_onenand_init(board_onenand_data);
680 n8x0_mmc_init();
681 n8x0_usb_init();
682 }
683
684 MACHINE_START(NOKIA_N800, "Nokia N800")
685 .atag_offset = 0x100,
686 .reserve = omap_reserve,
687 .map_io = omap242x_map_io,
688 .init_early = omap2420_init_early,
689 .init_irq = omap2_init_irq,
690 .handle_irq = omap2_intc_handle_irq,
691 .init_machine = n8x0_init_machine,
692 .init_late = omap2420_init_late,
693 .timer = &omap2_timer,
694 .restart = omap_prcm_restart,
695 MACHINE_END
696
697 MACHINE_START(NOKIA_N810, "Nokia N810")
698 .atag_offset = 0x100,
699 .reserve = omap_reserve,
700 .map_io = omap242x_map_io,
701 .init_early = omap2420_init_early,
702 .init_irq = omap2_init_irq,
703 .handle_irq = omap2_intc_handle_irq,
704 .init_machine = n8x0_init_machine,
705 .init_late = omap2420_init_late,
706 .timer = &omap2_timer,
707 .restart = omap_prcm_restart,
708 MACHINE_END
709
710 MACHINE_START(NOKIA_N810_WIMAX, "Nokia N810 WiMAX")
711 .atag_offset = 0x100,
712 .reserve = omap_reserve,
713 .map_io = omap242x_map_io,
714 .init_early = omap2420_init_early,
715 .init_irq = omap2_init_irq,
716 .handle_irq = omap2_intc_handle_irq,
717 .init_machine = n8x0_init_machine,
718 .init_late = omap2420_init_late,
719 .timer = &omap2_timer,
720 .restart = omap_prcm_restart,
721 MACHINE_END
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