Merge branch 'kirkwood/boards' of git://git.infradead.org/users/jcooper/linux into...
[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 <linux/platform_data/spi-omap2-mcspi.h>
24 #include <linux/platform_data/mtd-onenand-omap2.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 <plat/menelaus.h>
32 #include <plat/mmc.h>
33
34 #include "mux.h"
35
36 #define TUSB6010_ASYNC_CS 1
37 #define TUSB6010_SYNC_CS 4
38 #define TUSB6010_GPIO_INT 58
39 #define TUSB6010_GPIO_ENABLE 0
40 #define TUSB6010_DMACHAN 0x3f
41
42 #if defined(CONFIG_USB_MUSB_TUSB6010) || defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
43 /*
44 * Enable or disable power to TUSB6010. When enabling, turn on 3.3 V and
45 * 1.5 V voltage regulators of PM companion chip. Companion chip will then
46 * provide then PGOOD signal to TUSB6010 which will release it from reset.
47 */
48 static int tusb_set_power(int state)
49 {
50 int i, retval = 0;
51
52 if (state) {
53 gpio_set_value(TUSB6010_GPIO_ENABLE, 1);
54 msleep(1);
55
56 /* Wait until TUSB6010 pulls INT pin down */
57 i = 100;
58 while (i && gpio_get_value(TUSB6010_GPIO_INT)) {
59 msleep(1);
60 i--;
61 }
62
63 if (!i) {
64 printk(KERN_ERR "tusb: powerup failed\n");
65 retval = -ENODEV;
66 }
67 } else {
68 gpio_set_value(TUSB6010_GPIO_ENABLE, 0);
69 msleep(10);
70 }
71
72 return retval;
73 }
74
75 static struct musb_hdrc_config musb_config = {
76 .multipoint = 1,
77 .dyn_fifo = 1,
78 .num_eps = 16,
79 .ram_bits = 12,
80 };
81
82 static struct musb_hdrc_platform_data tusb_data = {
83 #ifdef CONFIG_USB_GADGET_MUSB_HDRC
84 .mode = MUSB_OTG,
85 #else
86 .mode = MUSB_HOST,
87 #endif
88 .set_power = tusb_set_power,
89 .min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */
90 .power = 100, /* Max 100 mA VBUS for host mode */
91 .config = &musb_config,
92 };
93
94 static void __init n8x0_usb_init(void)
95 {
96 int ret = 0;
97 static char announce[] __initdata = KERN_INFO "TUSB 6010\n";
98
99 /* PM companion chip power control pin */
100 ret = gpio_request_one(TUSB6010_GPIO_ENABLE, GPIOF_OUT_INIT_LOW,
101 "TUSB6010 enable");
102 if (ret != 0) {
103 printk(KERN_ERR "Could not get TUSB power GPIO%i\n",
104 TUSB6010_GPIO_ENABLE);
105 return;
106 }
107 tusb_set_power(0);
108
109 ret = tusb6010_setup_interface(&tusb_data, TUSB6010_REFCLK_19, 2,
110 TUSB6010_ASYNC_CS, TUSB6010_SYNC_CS,
111 TUSB6010_GPIO_INT, TUSB6010_DMACHAN);
112 if (ret != 0)
113 goto err;
114
115 printk(announce);
116
117 return;
118
119 err:
120 gpio_free(TUSB6010_GPIO_ENABLE);
121 }
122 #else
123
124 static void __init n8x0_usb_init(void) {}
125
126 #endif /*CONFIG_USB_MUSB_TUSB6010 */
127
128
129 static struct omap2_mcspi_device_config p54spi_mcspi_config = {
130 .turbo_mode = 0,
131 };
132
133 static struct spi_board_info n800_spi_board_info[] __initdata = {
134 {
135 .modalias = "p54spi",
136 .bus_num = 2,
137 .chip_select = 0,
138 .max_speed_hz = 48000000,
139 .controller_data = &p54spi_mcspi_config,
140 },
141 };
142
143 #if defined(CONFIG_MTD_ONENAND_OMAP2) || \
144 defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
145
146 static struct mtd_partition onenand_partitions[] = {
147 {
148 .name = "bootloader",
149 .offset = 0,
150 .size = 0x20000,
151 .mask_flags = MTD_WRITEABLE, /* Force read-only */
152 },
153 {
154 .name = "config",
155 .offset = MTDPART_OFS_APPEND,
156 .size = 0x60000,
157 },
158 {
159 .name = "kernel",
160 .offset = MTDPART_OFS_APPEND,
161 .size = 0x200000,
162 },
163 {
164 .name = "initfs",
165 .offset = MTDPART_OFS_APPEND,
166 .size = 0x400000,
167 },
168 {
169 .name = "rootfs",
170 .offset = MTDPART_OFS_APPEND,
171 .size = MTDPART_SIZ_FULL,
172 },
173 };
174
175 static struct omap_onenand_platform_data board_onenand_data[] = {
176 {
177 .cs = 0,
178 .gpio_irq = 26,
179 .parts = onenand_partitions,
180 .nr_parts = ARRAY_SIZE(onenand_partitions),
181 .flags = ONENAND_SYNC_READ,
182 }
183 };
184 #endif
185
186 #if defined(CONFIG_MENELAUS) && \
187 (defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE))
188
189 /*
190 * On both N800 and N810, only the first of the two MMC controllers is in use.
191 * The two MMC slots are multiplexed via Menelaus companion chip over I2C.
192 * On N800, both slots are powered via Menelaus. On N810, only one of the
193 * slots is powered via Menelaus. The N810 EMMC is powered via GPIO.
194 *
195 * VMMC slot 1 on both N800 and N810
196 * VDCDC3_APE and VMCS2_APE slot 2 on N800
197 * GPIO23 and GPIO9 slot 2 EMMC on N810
198 *
199 */
200 #define N8X0_SLOT_SWITCH_GPIO 96
201 #define N810_EMMC_VSD_GPIO 23
202 #define N810_EMMC_VIO_GPIO 9
203
204 static int slot1_cover_open;
205 static int slot2_cover_open;
206 static struct device *mmc_device;
207
208 static int n8x0_mmc_switch_slot(struct device *dev, int slot)
209 {
210 #ifdef CONFIG_MMC_DEBUG
211 dev_dbg(dev, "Choose slot %d\n", slot + 1);
212 #endif
213 gpio_set_value(N8X0_SLOT_SWITCH_GPIO, slot);
214 return 0;
215 }
216
217 static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot,
218 int power_on, int vdd)
219 {
220 int mV;
221
222 #ifdef CONFIG_MMC_DEBUG
223 dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1,
224 power_on ? "on" : "off", vdd);
225 #endif
226 if (slot == 0) {
227 if (!power_on)
228 return menelaus_set_vmmc(0);
229 switch (1 << vdd) {
230 case MMC_VDD_33_34:
231 case MMC_VDD_32_33:
232 case MMC_VDD_31_32:
233 mV = 3100;
234 break;
235 case MMC_VDD_30_31:
236 mV = 3000;
237 break;
238 case MMC_VDD_28_29:
239 mV = 2800;
240 break;
241 case MMC_VDD_165_195:
242 mV = 1850;
243 break;
244 default:
245 BUG();
246 }
247 return menelaus_set_vmmc(mV);
248 } else {
249 if (!power_on)
250 return menelaus_set_vdcdc(3, 0);
251 switch (1 << vdd) {
252 case MMC_VDD_33_34:
253 case MMC_VDD_32_33:
254 mV = 3300;
255 break;
256 case MMC_VDD_30_31:
257 case MMC_VDD_29_30:
258 mV = 3000;
259 break;
260 case MMC_VDD_28_29:
261 case MMC_VDD_27_28:
262 mV = 2800;
263 break;
264 case MMC_VDD_24_25:
265 case MMC_VDD_23_24:
266 mV = 2400;
267 break;
268 case MMC_VDD_22_23:
269 case MMC_VDD_21_22:
270 mV = 2200;
271 break;
272 case MMC_VDD_20_21:
273 mV = 2000;
274 break;
275 case MMC_VDD_165_195:
276 mV = 1800;
277 break;
278 default:
279 BUG();
280 }
281 return menelaus_set_vdcdc(3, mV);
282 }
283 return 0;
284 }
285
286 static void n810_set_power_emmc(struct device *dev,
287 int power_on)
288 {
289 dev_dbg(dev, "Set EMMC power %s\n", power_on ? "on" : "off");
290
291 if (power_on) {
292 gpio_set_value(N810_EMMC_VSD_GPIO, 1);
293 msleep(1);
294 gpio_set_value(N810_EMMC_VIO_GPIO, 1);
295 msleep(1);
296 } else {
297 gpio_set_value(N810_EMMC_VIO_GPIO, 0);
298 msleep(50);
299 gpio_set_value(N810_EMMC_VSD_GPIO, 0);
300 msleep(50);
301 }
302 }
303
304 static int n8x0_mmc_set_power(struct device *dev, int slot, int power_on,
305 int vdd)
306 {
307 if (machine_is_nokia_n800() || slot == 0)
308 return n8x0_mmc_set_power_menelaus(dev, slot, power_on, vdd);
309
310 n810_set_power_emmc(dev, power_on);
311
312 return 0;
313 }
314
315 static int n8x0_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode)
316 {
317 int r;
318
319 dev_dbg(dev, "Set slot %d bus mode %s\n", slot + 1,
320 bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull");
321 BUG_ON(slot != 0 && slot != 1);
322 slot++;
323 switch (bus_mode) {
324 case MMC_BUSMODE_OPENDRAIN:
325 r = menelaus_set_mmc_opendrain(slot, 1);
326 break;
327 case MMC_BUSMODE_PUSHPULL:
328 r = menelaus_set_mmc_opendrain(slot, 0);
329 break;
330 default:
331 BUG();
332 }
333 if (r != 0 && printk_ratelimit())
334 dev_err(dev, "MMC: unable to set bus mode for slot %d\n",
335 slot);
336 return r;
337 }
338
339 static int n8x0_mmc_get_cover_state(struct device *dev, int slot)
340 {
341 slot++;
342 BUG_ON(slot != 1 && slot != 2);
343 if (slot == 1)
344 return slot1_cover_open;
345 else
346 return slot2_cover_open;
347 }
348
349 static void n8x0_mmc_callback(void *data, u8 card_mask)
350 {
351 int bit, *openp, index;
352
353 if (machine_is_nokia_n800()) {
354 bit = 1 << 1;
355 openp = &slot2_cover_open;
356 index = 1;
357 } else {
358 bit = 1;
359 openp = &slot1_cover_open;
360 index = 0;
361 }
362
363 if (card_mask & bit)
364 *openp = 1;
365 else
366 *openp = 0;
367
368 #ifdef CONFIG_MMC_OMAP
369 omap_mmc_notify_cover_event(mmc_device, index, *openp);
370 #else
371 pr_warn("MMC: notify cover event not available\n");
372 #endif
373 }
374
375 static int n8x0_mmc_late_init(struct device *dev)
376 {
377 int r, bit, *openp;
378 int vs2sel;
379
380 mmc_device = dev;
381
382 r = menelaus_set_slot_sel(1);
383 if (r < 0)
384 return r;
385
386 if (machine_is_nokia_n800())
387 vs2sel = 0;
388 else
389 vs2sel = 2;
390
391 r = menelaus_set_mmc_slot(2, 0, vs2sel, 1);
392 if (r < 0)
393 return r;
394
395 n8x0_mmc_set_power(dev, 0, MMC_POWER_ON, 16); /* MMC_VDD_28_29 */
396 n8x0_mmc_set_power(dev, 1, MMC_POWER_ON, 16);
397
398 r = menelaus_set_mmc_slot(1, 1, 0, 1);
399 if (r < 0)
400 return r;
401 r = menelaus_set_mmc_slot(2, 1, vs2sel, 1);
402 if (r < 0)
403 return r;
404
405 r = menelaus_get_slot_pin_states();
406 if (r < 0)
407 return r;
408
409 if (machine_is_nokia_n800()) {
410 bit = 1 << 1;
411 openp = &slot2_cover_open;
412 } else {
413 bit = 1;
414 openp = &slot1_cover_open;
415 slot2_cover_open = 0;
416 }
417
418 /* All slot pin bits seem to be inversed until first switch change */
419 if (r == 0xf || r == (0xf & ~bit))
420 r = ~r;
421
422 if (r & bit)
423 *openp = 1;
424 else
425 *openp = 0;
426
427 r = menelaus_register_mmc_callback(n8x0_mmc_callback, NULL);
428
429 return r;
430 }
431
432 static void n8x0_mmc_shutdown(struct device *dev)
433 {
434 int vs2sel;
435
436 if (machine_is_nokia_n800())
437 vs2sel = 0;
438 else
439 vs2sel = 2;
440
441 menelaus_set_mmc_slot(1, 0, 0, 0);
442 menelaus_set_mmc_slot(2, 0, vs2sel, 0);
443 }
444
445 static void n8x0_mmc_cleanup(struct device *dev)
446 {
447 menelaus_unregister_mmc_callback();
448
449 gpio_free(N8X0_SLOT_SWITCH_GPIO);
450
451 if (machine_is_nokia_n810()) {
452 gpio_free(N810_EMMC_VSD_GPIO);
453 gpio_free(N810_EMMC_VIO_GPIO);
454 }
455 }
456
457 /*
458 * MMC controller1 has two slots that are multiplexed via I2C.
459 * MMC controller2 is not in use.
460 */
461 static struct omap_mmc_platform_data mmc1_data = {
462 .nr_slots = 2,
463 .switch_slot = n8x0_mmc_switch_slot,
464 .init = n8x0_mmc_late_init,
465 .cleanup = n8x0_mmc_cleanup,
466 .shutdown = n8x0_mmc_shutdown,
467 .max_freq = 24000000,
468 .slots[0] = {
469 .wires = 4,
470 .set_power = n8x0_mmc_set_power,
471 .set_bus_mode = n8x0_mmc_set_bus_mode,
472 .get_cover_state = n8x0_mmc_get_cover_state,
473 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_30_31 |
474 MMC_VDD_32_33 | MMC_VDD_33_34,
475 .name = "internal",
476 },
477 .slots[1] = {
478 .set_power = n8x0_mmc_set_power,
479 .set_bus_mode = n8x0_mmc_set_bus_mode,
480 .get_cover_state = n8x0_mmc_get_cover_state,
481 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_20_21 |
482 MMC_VDD_21_22 | MMC_VDD_22_23 |
483 MMC_VDD_23_24 | MMC_VDD_24_25 |
484 MMC_VDD_27_28 | MMC_VDD_28_29 |
485 MMC_VDD_29_30 | MMC_VDD_30_31 |
486 MMC_VDD_32_33 | MMC_VDD_33_34,
487 .name = "external",
488 },
489 };
490
491 static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC];
492
493 static struct gpio n810_emmc_gpios[] __initdata = {
494 { N810_EMMC_VSD_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vddf" },
495 { N810_EMMC_VIO_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vdd" },
496 };
497
498 static void __init n8x0_mmc_init(void)
499 {
500 int err;
501
502 if (machine_is_nokia_n810()) {
503 mmc1_data.slots[0].name = "external";
504
505 /*
506 * Some Samsung Movinand chips do not like open-ended
507 * multi-block reads and fall to braind-dead state
508 * while doing so. Reducing the number of blocks in
509 * the transfer or delays in clock disable do not help
510 */
511 mmc1_data.slots[1].name = "internal";
512 mmc1_data.slots[1].ban_openended = 1;
513 }
514
515 err = gpio_request_one(N8X0_SLOT_SWITCH_GPIO, GPIOF_OUT_INIT_LOW,
516 "MMC slot switch");
517 if (err)
518 return;
519
520 if (machine_is_nokia_n810()) {
521 err = gpio_request_array(n810_emmc_gpios,
522 ARRAY_SIZE(n810_emmc_gpios));
523 if (err) {
524 gpio_free(N8X0_SLOT_SWITCH_GPIO);
525 return;
526 }
527 }
528
529 mmc_data[0] = &mmc1_data;
530 omap242x_init_mmc(mmc_data);
531 }
532 #else
533
534 void __init n8x0_mmc_init(void)
535 {
536 }
537 #endif /* CONFIG_MMC_OMAP */
538
539 #ifdef CONFIG_MENELAUS
540
541 static int n8x0_auto_sleep_regulators(void)
542 {
543 u32 val;
544 int ret;
545
546 val = EN_VPLL_SLEEP | EN_VMMC_SLEEP \
547 | EN_VAUX_SLEEP | EN_VIO_SLEEP \
548 | EN_VMEM_SLEEP | EN_DC3_SLEEP \
549 | EN_VC_SLEEP | EN_DC2_SLEEP;
550
551 ret = menelaus_set_regulator_sleep(1, val);
552 if (ret < 0) {
553 pr_err("Could not set regulators to sleep on menelaus: %u\n",
554 ret);
555 return ret;
556 }
557 return 0;
558 }
559
560 static int n8x0_auto_voltage_scale(void)
561 {
562 int ret;
563
564 ret = menelaus_set_vcore_hw(1400, 1050);
565 if (ret < 0) {
566 pr_err("Could not set VCORE voltage on menelaus: %u\n", ret);
567 return ret;
568 }
569 return 0;
570 }
571
572 static int n8x0_menelaus_late_init(struct device *dev)
573 {
574 int ret;
575
576 ret = n8x0_auto_voltage_scale();
577 if (ret < 0)
578 return ret;
579 ret = n8x0_auto_sleep_regulators();
580 if (ret < 0)
581 return ret;
582 return 0;
583 }
584
585 #else
586 static int n8x0_menelaus_late_init(struct device *dev)
587 {
588 return 0;
589 }
590 #endif
591
592 static struct menelaus_platform_data n8x0_menelaus_platform_data __initdata = {
593 .late_init = n8x0_menelaus_late_init,
594 };
595
596 static struct i2c_board_info __initdata n8x0_i2c_board_info_1[] __initdata = {
597 {
598 I2C_BOARD_INFO("menelaus", 0x72),
599 .irq = 7 + OMAP_INTC_START,
600 .platform_data = &n8x0_menelaus_platform_data,
601 },
602 };
603
604 static struct aic3x_pdata n810_aic33_data __initdata = {
605 .gpio_reset = 118,
606 };
607
608 static struct i2c_board_info n810_i2c_board_info_2[] __initdata = {
609 {
610 I2C_BOARD_INFO("tlv320aic3x", 0x18),
611 .platform_data = &n810_aic33_data,
612 },
613 };
614
615 #ifdef CONFIG_OMAP_MUX
616 static struct omap_board_mux board_mux[] __initdata = {
617 /* I2S codec port pins for McBSP block */
618 OMAP2420_MUX(EAC_AC_SCLK, OMAP_MUX_MODE1 | OMAP_PIN_INPUT),
619 OMAP2420_MUX(EAC_AC_FS, OMAP_MUX_MODE1 | OMAP_PIN_INPUT),
620 OMAP2420_MUX(EAC_AC_DIN, OMAP_MUX_MODE1 | OMAP_PIN_INPUT),
621 OMAP2420_MUX(EAC_AC_DOUT, OMAP_MUX_MODE1 | OMAP_PIN_OUTPUT),
622 { .reg_offset = OMAP_MUX_TERMINATOR },
623 };
624
625 static struct omap_device_pad serial2_pads[] __initdata = {
626 {
627 .name = "uart3_rx_irrx.uart3_rx_irrx",
628 .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP,
629 .enable = OMAP_MUX_MODE0,
630 .idle = OMAP_MUX_MODE3 /* Mux as GPIO for idle */
631 },
632 };
633
634 static inline void board_serial_init(void)
635 {
636 struct omap_board_data bdata;
637
638 bdata.flags = 0;
639 bdata.pads = NULL;
640 bdata.pads_cnt = 0;
641
642 bdata.id = 0;
643 omap_serial_init_port(&bdata, NULL);
644
645 bdata.id = 1;
646 omap_serial_init_port(&bdata, NULL);
647
648 bdata.id = 2;
649 bdata.pads = serial2_pads;
650 bdata.pads_cnt = ARRAY_SIZE(serial2_pads);
651 omap_serial_init_port(&bdata, NULL);
652 }
653
654 #else
655
656 static inline void board_serial_init(void)
657 {
658 omap_serial_init();
659 }
660
661 #endif
662
663 static void __init n8x0_init_machine(void)
664 {
665 omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC);
666 /* FIXME: add n810 spi devices */
667 spi_register_board_info(n800_spi_board_info,
668 ARRAY_SIZE(n800_spi_board_info));
669 omap_register_i2c_bus(1, 400, n8x0_i2c_board_info_1,
670 ARRAY_SIZE(n8x0_i2c_board_info_1));
671 omap_register_i2c_bus(2, 400, NULL, 0);
672 if (machine_is_nokia_n810())
673 i2c_register_board_info(2, n810_i2c_board_info_2,
674 ARRAY_SIZE(n810_i2c_board_info_2));
675 board_serial_init();
676 omap_sdrc_init(NULL, NULL);
677 gpmc_onenand_init(board_onenand_data);
678 n8x0_mmc_init();
679 n8x0_usb_init();
680 }
681
682 MACHINE_START(NOKIA_N800, "Nokia N800")
683 .atag_offset = 0x100,
684 .reserve = omap_reserve,
685 .map_io = omap242x_map_io,
686 .init_early = omap2420_init_early,
687 .init_irq = omap2_init_irq,
688 .handle_irq = omap2_intc_handle_irq,
689 .init_machine = n8x0_init_machine,
690 .init_late = omap2420_init_late,
691 .timer = &omap2_timer,
692 .restart = omap_prcm_restart,
693 MACHINE_END
694
695 MACHINE_START(NOKIA_N810, "Nokia N810")
696 .atag_offset = 0x100,
697 .reserve = omap_reserve,
698 .map_io = omap242x_map_io,
699 .init_early = omap2420_init_early,
700 .init_irq = omap2_init_irq,
701 .handle_irq = omap2_intc_handle_irq,
702 .init_machine = n8x0_init_machine,
703 .init_late = omap2420_init_late,
704 .timer = &omap2_timer,
705 .restart = omap_prcm_restart,
706 MACHINE_END
707
708 MACHINE_START(NOKIA_N810_WIMAX, "Nokia N810 WiMAX")
709 .atag_offset = 0x100,
710 .reserve = omap_reserve,
711 .map_io = omap242x_map_io,
712 .init_early = omap2420_init_early,
713 .init_irq = omap2_init_irq,
714 .handle_irq = omap2_intc_handle_irq,
715 .init_machine = n8x0_init_machine,
716 .init_late = omap2420_init_late,
717 .timer = &omap2_timer,
718 .restart = omap_prcm_restart,
719 MACHINE_END
This page took 0.044756 seconds and 5 git commands to generate.