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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 <plat/board.h>
29#include "common.h"
30#include <plat/menelaus.h>
31#include <mach/irqs.h>
32#include <plat/mcspi.h>
33#include <plat/onenand.h>
34#include <plat/mmc.h>
35#include <plat/serial.h>
36
37#include "mux.h"
38
39#define TUSB6010_ASYNC_CS 1
40#define TUSB6010_SYNC_CS 4
41#define TUSB6010_GPIO_INT 58
42#define TUSB6010_GPIO_ENABLE 0
43#define TUSB6010_DMACHAN 0x3f
44
45#if defined(CONFIG_USB_MUSB_TUSB6010) || defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
46/*
47 * Enable or disable power to TUSB6010. When enabling, turn on 3.3 V and
48 * 1.5 V voltage regulators of PM companion chip. Companion chip will then
49 * provide then PGOOD signal to TUSB6010 which will release it from reset.
50 */
51static int tusb_set_power(int state)
52{
53 int i, retval = 0;
54
55 if (state) {
56 gpio_set_value(TUSB6010_GPIO_ENABLE, 1);
57 msleep(1);
58
59 /* Wait until TUSB6010 pulls INT pin down */
60 i = 100;
61 while (i && gpio_get_value(TUSB6010_GPIO_INT)) {
62 msleep(1);
63 i--;
64 }
65
66 if (!i) {
67 printk(KERN_ERR "tusb: powerup failed\n");
68 retval = -ENODEV;
69 }
70 } else {
71 gpio_set_value(TUSB6010_GPIO_ENABLE, 0);
72 msleep(10);
73 }
74
75 return retval;
76}
77
78static struct musb_hdrc_config musb_config = {
79 .multipoint = 1,
80 .dyn_fifo = 1,
81 .num_eps = 16,
82 .ram_bits = 12,
83};
84
85static struct musb_hdrc_platform_data tusb_data = {
86#ifdef CONFIG_USB_GADGET_MUSB_HDRC
87 .mode = MUSB_OTG,
88#else
89 .mode = MUSB_HOST,
90#endif
91 .set_power = tusb_set_power,
92 .min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */
93 .power = 100, /* Max 100 mA VBUS for host mode */
94 .config = &musb_config,
95};
96
97static void __init n8x0_usb_init(void)
98{
99 int ret = 0;
100 static char announce[] __initdata = KERN_INFO "TUSB 6010\n";
101
102 /* PM companion chip power control pin */
103 ret = gpio_request_one(TUSB6010_GPIO_ENABLE, GPIOF_OUT_INIT_LOW,
104 "TUSB6010 enable");
105 if (ret != 0) {
106 printk(KERN_ERR "Could not get TUSB power GPIO%i\n",
107 TUSB6010_GPIO_ENABLE);
108 return;
109 }
110 tusb_set_power(0);
111
112 ret = tusb6010_setup_interface(&tusb_data, TUSB6010_REFCLK_19, 2,
113 TUSB6010_ASYNC_CS, TUSB6010_SYNC_CS,
114 TUSB6010_GPIO_INT, TUSB6010_DMACHAN);
115 if (ret != 0)
116 goto err;
117
118 printk(announce);
119
120 return;
121
122err:
123 gpio_free(TUSB6010_GPIO_ENABLE);
124}
125#else
126
127static void __init n8x0_usb_init(void) {}
128
129#endif /*CONFIG_USB_MUSB_TUSB6010 */
130
131
132static struct omap2_mcspi_device_config p54spi_mcspi_config = {
133 .turbo_mode = 0,
134};
135
136static struct spi_board_info n800_spi_board_info[] __initdata = {
137 {
138 .modalias = "p54spi",
139 .bus_num = 2,
140 .chip_select = 0,
141 .max_speed_hz = 48000000,
142 .controller_data = &p54spi_mcspi_config,
143 },
144};
145
146#if defined(CONFIG_MTD_ONENAND_OMAP2) || \
147 defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
148
149static struct mtd_partition onenand_partitions[] = {
150 {
151 .name = "bootloader",
152 .offset = 0,
153 .size = 0x20000,
154 .mask_flags = MTD_WRITEABLE, /* Force read-only */
155 },
156 {
157 .name = "config",
158 .offset = MTDPART_OFS_APPEND,
159 .size = 0x60000,
160 },
161 {
162 .name = "kernel",
163 .offset = MTDPART_OFS_APPEND,
164 .size = 0x200000,
165 },
166 {
167 .name = "initfs",
168 .offset = MTDPART_OFS_APPEND,
169 .size = 0x400000,
170 },
171 {
172 .name = "rootfs",
173 .offset = MTDPART_OFS_APPEND,
174 .size = MTDPART_SIZ_FULL,
175 },
176};
177
178static struct omap_onenand_platform_data board_onenand_data[] = {
179 {
180 .cs = 0,
181 .gpio_irq = 26,
182 .parts = onenand_partitions,
183 .nr_parts = ARRAY_SIZE(onenand_partitions),
184 .flags = ONENAND_SYNC_READ,
185 }
186};
187#endif
188
189#if defined(CONFIG_MENELAUS) && \
190 (defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE))
191
192/*
193 * On both N800 and N810, only the first of the two MMC controllers is in use.
194 * The two MMC slots are multiplexed via Menelaus companion chip over I2C.
195 * On N800, both slots are powered via Menelaus. On N810, only one of the
196 * slots is powered via Menelaus. The N810 EMMC is powered via GPIO.
197 *
198 * VMMC slot 1 on both N800 and N810
199 * VDCDC3_APE and VMCS2_APE slot 2 on N800
200 * GPIO23 and GPIO9 slot 2 EMMC on N810
201 *
202 */
203#define N8X0_SLOT_SWITCH_GPIO 96
204#define N810_EMMC_VSD_GPIO 23
205#define N810_EMMC_VIO_GPIO 9
206
207static int slot1_cover_open;
208static int slot2_cover_open;
209static struct device *mmc_device;
210
211static int n8x0_mmc_switch_slot(struct device *dev, int slot)
212{
213#ifdef CONFIG_MMC_DEBUG
214 dev_dbg(dev, "Choose slot %d\n", slot + 1);
215#endif
216 gpio_set_value(N8X0_SLOT_SWITCH_GPIO, slot);
217 return 0;
218}
219
220static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot,
221 int power_on, int vdd)
222{
223 int mV;
224
225#ifdef CONFIG_MMC_DEBUG
226 dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1,
227 power_on ? "on" : "off", vdd);
228#endif
229 if (slot == 0) {
230 if (!power_on)
231 return menelaus_set_vmmc(0);
232 switch (1 << vdd) {
233 case MMC_VDD_33_34:
234 case MMC_VDD_32_33:
235 case MMC_VDD_31_32:
236 mV = 3100;
237 break;
238 case MMC_VDD_30_31:
239 mV = 3000;
240 break;
241 case MMC_VDD_28_29:
242 mV = 2800;
243 break;
244 case MMC_VDD_165_195:
245 mV = 1850;
246 break;
247 default:
248 BUG();
249 }
250 return menelaus_set_vmmc(mV);
251 } else {
252 if (!power_on)
253 return menelaus_set_vdcdc(3, 0);
254 switch (1 << vdd) {
255 case MMC_VDD_33_34:
256 case MMC_VDD_32_33:
257 mV = 3300;
258 break;
259 case MMC_VDD_30_31:
260 case MMC_VDD_29_30:
261 mV = 3000;
262 break;
263 case MMC_VDD_28_29:
264 case MMC_VDD_27_28:
265 mV = 2800;
266 break;
267 case MMC_VDD_24_25:
268 case MMC_VDD_23_24:
269 mV = 2400;
270 break;
271 case MMC_VDD_22_23:
272 case MMC_VDD_21_22:
273 mV = 2200;
274 break;
275 case MMC_VDD_20_21:
276 mV = 2000;
277 break;
278 case MMC_VDD_165_195:
279 mV = 1800;
280 break;
281 default:
282 BUG();
283 }
284 return menelaus_set_vdcdc(3, mV);
285 }
286 return 0;
287}
288
289static void n810_set_power_emmc(struct device *dev,
290 int power_on)
291{
292 dev_dbg(dev, "Set EMMC power %s\n", power_on ? "on" : "off");
293
294 if (power_on) {
295 gpio_set_value(N810_EMMC_VSD_GPIO, 1);
296 msleep(1);
297 gpio_set_value(N810_EMMC_VIO_GPIO, 1);
298 msleep(1);
299 } else {
300 gpio_set_value(N810_EMMC_VIO_GPIO, 0);
301 msleep(50);
302 gpio_set_value(N810_EMMC_VSD_GPIO, 0);
303 msleep(50);
304 }
305}
306
307static int n8x0_mmc_set_power(struct device *dev, int slot, int power_on,
308 int vdd)
309{
310 if (machine_is_nokia_n800() || slot == 0)
311 return n8x0_mmc_set_power_menelaus(dev, slot, power_on, vdd);
312
313 n810_set_power_emmc(dev, power_on);
314
315 return 0;
316}
317
318static int n8x0_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode)
319{
320 int r;
321
322 dev_dbg(dev, "Set slot %d bus mode %s\n", slot + 1,
323 bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull");
324 BUG_ON(slot != 0 && slot != 1);
325 slot++;
326 switch (bus_mode) {
327 case MMC_BUSMODE_OPENDRAIN:
328 r = menelaus_set_mmc_opendrain(slot, 1);
329 break;
330 case MMC_BUSMODE_PUSHPULL:
331 r = menelaus_set_mmc_opendrain(slot, 0);
332 break;
333 default:
334 BUG();
335 }
336 if (r != 0 && printk_ratelimit())
337 dev_err(dev, "MMC: unable to set bus mode for slot %d\n",
338 slot);
339 return r;
340}
341
342static int n8x0_mmc_get_cover_state(struct device *dev, int slot)
343{
344 slot++;
345 BUG_ON(slot != 1 && slot != 2);
346 if (slot == 1)
347 return slot1_cover_open;
348 else
349 return slot2_cover_open;
350}
351
352static void n8x0_mmc_callback(void *data, u8 card_mask)
353{
354 int bit, *openp, index;
355
356 if (machine_is_nokia_n800()) {
357 bit = 1 << 1;
358 openp = &slot2_cover_open;
359 index = 1;
360 } else {
361 bit = 1;
362 openp = &slot1_cover_open;
363 index = 0;
364 }
365
366 if (card_mask & bit)
367 *openp = 1;
368 else
369 *openp = 0;
370
371#ifdef CONFIG_MMC_OMAP
372 omap_mmc_notify_cover_event(mmc_device, index, *openp);
373#else
374 pr_warn("MMC: notify cover event not available\n");
375#endif
376}
377
378static int n8x0_mmc_late_init(struct device *dev)
379{
380 int r, bit, *openp;
381 int vs2sel;
382
383 mmc_device = dev;
384
385 r = menelaus_set_slot_sel(1);
386 if (r < 0)
387 return r;
388
389 if (machine_is_nokia_n800())
390 vs2sel = 0;
391 else
392 vs2sel = 2;
393
394 r = menelaus_set_mmc_slot(2, 0, vs2sel, 1);
395 if (r < 0)
396 return r;
397
398 n8x0_mmc_set_power(dev, 0, MMC_POWER_ON, 16); /* MMC_VDD_28_29 */
399 n8x0_mmc_set_power(dev, 1, MMC_POWER_ON, 16);
400
401 r = menelaus_set_mmc_slot(1, 1, 0, 1);
402 if (r < 0)
403 return r;
404 r = menelaus_set_mmc_slot(2, 1, vs2sel, 1);
405 if (r < 0)
406 return r;
407
408 r = menelaus_get_slot_pin_states();
409 if (r < 0)
410 return r;
411
412 if (machine_is_nokia_n800()) {
413 bit = 1 << 1;
414 openp = &slot2_cover_open;
415 } else {
416 bit = 1;
417 openp = &slot1_cover_open;
418 slot2_cover_open = 0;
419 }
420
421 /* All slot pin bits seem to be inversed until first switch change */
422 if (r == 0xf || r == (0xf & ~bit))
423 r = ~r;
424
425 if (r & bit)
426 *openp = 1;
427 else
428 *openp = 0;
429
430 r = menelaus_register_mmc_callback(n8x0_mmc_callback, NULL);
431
432 return r;
433}
434
435static void n8x0_mmc_shutdown(struct device *dev)
436{
437 int vs2sel;
438
439 if (machine_is_nokia_n800())
440 vs2sel = 0;
441 else
442 vs2sel = 2;
443
444 menelaus_set_mmc_slot(1, 0, 0, 0);
445 menelaus_set_mmc_slot(2, 0, vs2sel, 0);
446}
447
448static void n8x0_mmc_cleanup(struct device *dev)
449{
450 menelaus_unregister_mmc_callback();
451
452 gpio_free(N8X0_SLOT_SWITCH_GPIO);
453
454 if (machine_is_nokia_n810()) {
455 gpio_free(N810_EMMC_VSD_GPIO);
456 gpio_free(N810_EMMC_VIO_GPIO);
457 }
458}
459
460/*
461 * MMC controller1 has two slots that are multiplexed via I2C.
462 * MMC controller2 is not in use.
463 */
464static struct omap_mmc_platform_data mmc1_data = {
465 .nr_slots = 2,
466 .switch_slot = n8x0_mmc_switch_slot,
467 .init = n8x0_mmc_late_init,
468 .cleanup = n8x0_mmc_cleanup,
469 .shutdown = n8x0_mmc_shutdown,
470 .max_freq = 24000000,
471 .dma_mask = 0xffffffff,
472 .slots[0] = {
473 .wires = 4,
474 .set_power = n8x0_mmc_set_power,
475 .set_bus_mode = n8x0_mmc_set_bus_mode,
476 .get_cover_state = n8x0_mmc_get_cover_state,
477 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_30_31 |
478 MMC_VDD_32_33 | MMC_VDD_33_34,
479 .name = "internal",
480 },
481 .slots[1] = {
482 .set_power = n8x0_mmc_set_power,
483 .set_bus_mode = n8x0_mmc_set_bus_mode,
484 .get_cover_state = n8x0_mmc_get_cover_state,
485 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_20_21 |
486 MMC_VDD_21_22 | MMC_VDD_22_23 |
487 MMC_VDD_23_24 | MMC_VDD_24_25 |
488 MMC_VDD_27_28 | MMC_VDD_28_29 |
489 MMC_VDD_29_30 | MMC_VDD_30_31 |
490 MMC_VDD_32_33 | MMC_VDD_33_34,
491 .name = "external",
492 },
493};
494
495static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC];
496
497static struct gpio n810_emmc_gpios[] __initdata = {
498 { N810_EMMC_VSD_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vddf" },
499 { N810_EMMC_VIO_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vdd" },
500};
501
502static void __init n8x0_mmc_init(void)
503{
504 int err;
505
506 if (machine_is_nokia_n810()) {
507 mmc1_data.slots[0].name = "external";
508
509 /*
510 * Some Samsung Movinand chips do not like open-ended
511 * multi-block reads and fall to braind-dead state
512 * while doing so. Reducing the number of blocks in
513 * the transfer or delays in clock disable do not help
514 */
515 mmc1_data.slots[1].name = "internal";
516 mmc1_data.slots[1].ban_openended = 1;
517 }
518
519 err = gpio_request_one(N8X0_SLOT_SWITCH_GPIO, GPIOF_OUT_INIT_LOW,
520 "MMC slot switch");
521 if (err)
522 return;
523
524 if (machine_is_nokia_n810()) {
525 err = gpio_request_array(n810_emmc_gpios,
526 ARRAY_SIZE(n810_emmc_gpios));
527 if (err) {
528 gpio_free(N8X0_SLOT_SWITCH_GPIO);
529 return;
530 }
531 }
532
533 mmc_data[0] = &mmc1_data;
534 omap242x_init_mmc(mmc_data);
535}
536#else
537
538void __init n8x0_mmc_init(void)
539{
540}
541#endif /* CONFIG_MMC_OMAP */
542
543#ifdef CONFIG_MENELAUS
544
545static int n8x0_auto_sleep_regulators(void)
546{
547 u32 val;
548 int ret;
549
550 val = EN_VPLL_SLEEP | EN_VMMC_SLEEP \
551 | EN_VAUX_SLEEP | EN_VIO_SLEEP \
552 | EN_VMEM_SLEEP | EN_DC3_SLEEP \
553 | EN_VC_SLEEP | EN_DC2_SLEEP;
554
555 ret = menelaus_set_regulator_sleep(1, val);
556 if (ret < 0) {
557 printk(KERN_ERR "Could not set regulators to sleep on "
558 "menelaus: %u\n", ret);
559 return ret;
560 }
561 return 0;
562}
563
564static int n8x0_auto_voltage_scale(void)
565{
566 int ret;
567
568 ret = menelaus_set_vcore_hw(1400, 1050);
569 if (ret < 0) {
570 printk(KERN_ERR "Could not set VCORE voltage on "
571 "menelaus: %u\n", ret);
572 return ret;
573 }
574 return 0;
575}
576
577static int n8x0_menelaus_late_init(struct device *dev)
578{
579 int ret;
580
581 ret = n8x0_auto_voltage_scale();
582 if (ret < 0)
583 return ret;
584 ret = n8x0_auto_sleep_regulators();
585 if (ret < 0)
586 return ret;
587 return 0;
588}
589
590#else
591static int n8x0_menelaus_late_init(struct device *dev)
592{
593 return 0;
594}
595#endif
596
597static struct menelaus_platform_data n8x0_menelaus_platform_data __initdata = {
598 .late_init = n8x0_menelaus_late_init,
599};
600
601static struct i2c_board_info __initdata n8x0_i2c_board_info_1[] __initdata = {
602 {
603 I2C_BOARD_INFO("menelaus", 0x72),
604 .irq = INT_24XX_SYS_NIRQ,
605 .platform_data = &n8x0_menelaus_platform_data,
606 },
607};
608
609static struct aic3x_pdata n810_aic33_data __initdata = {
610 .gpio_reset = 118,
611};
612
613static struct i2c_board_info n810_i2c_board_info_2[] __initdata = {
614 {
615 I2C_BOARD_INFO("tlv320aic3x", 0x18),
616 .platform_data = &n810_aic33_data,
617 },
618};
619
620#ifdef CONFIG_OMAP_MUX
621static struct omap_board_mux board_mux[] __initdata = {
622 /* I2S codec port pins for McBSP block */
623 OMAP2420_MUX(EAC_AC_SCLK, OMAP_MUX_MODE1 | OMAP_PIN_INPUT),
624 OMAP2420_MUX(EAC_AC_FS, OMAP_MUX_MODE1 | OMAP_PIN_INPUT),
625 OMAP2420_MUX(EAC_AC_DIN, OMAP_MUX_MODE1 | OMAP_PIN_INPUT),
626 OMAP2420_MUX(EAC_AC_DOUT, OMAP_MUX_MODE1 | OMAP_PIN_OUTPUT),
627 { .reg_offset = OMAP_MUX_TERMINATOR },
628};
629
630static struct omap_device_pad serial2_pads[] __initdata = {
631 {
632 .name = "uart3_rx_irrx.uart3_rx_irrx",
633 .flags = OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP,
634 .enable = OMAP_MUX_MODE0,
635 .idle = OMAP_MUX_MODE3 /* Mux as GPIO for idle */
636 },
637};
638
639static inline void board_serial_init(void)
640{
641 struct omap_board_data bdata;
642
643 bdata.flags = 0;
644 bdata.pads = NULL;
645 bdata.pads_cnt = 0;
646
647 bdata.id = 0;
648 omap_serial_init_port(&bdata, NULL);
649
650 bdata.id = 1;
651 omap_serial_init_port(&bdata, NULL);
652
653 bdata.id = 2;
654 bdata.pads = serial2_pads;
655 bdata.pads_cnt = ARRAY_SIZE(serial2_pads);
656 omap_serial_init_port(&bdata, NULL);
657}
658
659#else
660
661static inline void board_serial_init(void)
662{
663 omap_serial_init();
664}
665
666#endif
667
668static void __init n8x0_init_machine(void)
669{
670 omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC);
671 /* FIXME: add n810 spi devices */
672 spi_register_board_info(n800_spi_board_info,
673 ARRAY_SIZE(n800_spi_board_info));
674 omap_register_i2c_bus(1, 400, n8x0_i2c_board_info_1,
675 ARRAY_SIZE(n8x0_i2c_board_info_1));
676 omap_register_i2c_bus(2, 400, NULL, 0);
677 if (machine_is_nokia_n810())
678 i2c_register_board_info(2, n810_i2c_board_info_2,
679 ARRAY_SIZE(n810_i2c_board_info_2));
680 board_serial_init();
681 omap_sdrc_init(NULL, NULL);
682 gpmc_onenand_init(board_onenand_data);
683 n8x0_mmc_init();
684 n8x0_usb_init();
685}
686
687MACHINE_START(NOKIA_N800, "Nokia N800")
688 .atag_offset = 0x100,
689 .reserve = omap_reserve,
690 .map_io = omap242x_map_io,
691 .init_early = omap2420_init_early,
692 .init_irq = omap2_init_irq,
693 .handle_irq = omap2_intc_handle_irq,
694 .init_machine = n8x0_init_machine,
695 .init_late = omap2420_init_late,
696 .timer = &omap2_timer,
697 .restart = omap_prcm_restart,
698MACHINE_END
699
700MACHINE_START(NOKIA_N810, "Nokia N810")
701 .atag_offset = 0x100,
702 .reserve = omap_reserve,
703 .map_io = omap242x_map_io,
704 .init_early = omap2420_init_early,
705 .init_irq = omap2_init_irq,
706 .handle_irq = omap2_intc_handle_irq,
707 .init_machine = n8x0_init_machine,
708 .init_late = omap2420_init_late,
709 .timer = &omap2_timer,
710 .restart = omap_prcm_restart,
711MACHINE_END
712
713MACHINE_START(NOKIA_N810_WIMAX, "Nokia N810 WiMAX")
714 .atag_offset = 0x100,
715 .reserve = omap_reserve,
716 .map_io = omap242x_map_io,
717 .init_early = omap2420_init_early,
718 .init_irq = omap2_init_irq,
719 .handle_irq = omap2_intc_handle_irq,
720 .init_machine = n8x0_init_machine,
721 .init_late = omap2420_init_late,
722 .timer = &omap2_timer,
723 .restart = omap_prcm_restart,
724MACHINE_END
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/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_machine_is_compatible("nokia,n800"))
57 board_caps = NOKIA_N800;
58 else if (of_machine_is_compatible("nokia,n810"))
59 board_caps = NOKIA_N810;
60 else if (of_machine_is_compatible("nokia,n810-wimax"))
61 board_caps = NOKIA_N810_WIMAX;
62
63 if (!board_caps)
64 pr_err("Unknown board\n");
65}
66
67#if IS_ENABLED(CONFIG_USB_MUSB_TUSB6010)
68/*
69 * Enable or disable power to TUSB6010. When enabling, turn on 3.3 V and
70 * 1.5 V voltage regulators of PM companion chip. Companion chip will then
71 * provide then PGOOD signal to TUSB6010 which will release it from reset.
72 */
73static int tusb_set_power(int state)
74{
75 int i, retval = 0;
76
77 if (state) {
78 gpio_set_value(TUSB6010_GPIO_ENABLE, 1);
79 msleep(1);
80
81 /* Wait until TUSB6010 pulls INT pin down */
82 i = 100;
83 while (i && gpio_get_value(TUSB6010_GPIO_INT)) {
84 msleep(1);
85 i--;
86 }
87
88 if (!i) {
89 printk(KERN_ERR "tusb: powerup failed\n");
90 retval = -ENODEV;
91 }
92 } else {
93 gpio_set_value(TUSB6010_GPIO_ENABLE, 0);
94 msleep(10);
95 }
96
97 return retval;
98}
99
100static struct musb_hdrc_config musb_config = {
101 .multipoint = 1,
102 .dyn_fifo = 1,
103 .num_eps = 16,
104 .ram_bits = 12,
105};
106
107static struct musb_hdrc_platform_data tusb_data = {
108 .mode = MUSB_OTG,
109 .set_power = tusb_set_power,
110 .min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */
111 .power = 100, /* Max 100 mA VBUS for host mode */
112 .config = &musb_config,
113};
114
115static void __init n8x0_usb_init(void)
116{
117 int ret = 0;
118 static const char announce[] __initconst = KERN_INFO "TUSB 6010\n";
119
120 /* PM companion chip power control pin */
121 ret = gpio_request_one(TUSB6010_GPIO_ENABLE, GPIOF_OUT_INIT_LOW,
122 "TUSB6010 enable");
123 if (ret != 0) {
124 printk(KERN_ERR "Could not get TUSB power GPIO%i\n",
125 TUSB6010_GPIO_ENABLE);
126 return;
127 }
128 tusb_set_power(0);
129
130 ret = tusb6010_setup_interface(&tusb_data, TUSB6010_REFCLK_19, 2,
131 TUSB6010_ASYNC_CS, TUSB6010_SYNC_CS,
132 TUSB6010_GPIO_INT, TUSB6010_DMACHAN);
133 if (ret != 0)
134 goto err;
135
136 printk(announce);
137
138 return;
139
140err:
141 gpio_free(TUSB6010_GPIO_ENABLE);
142}
143#else
144
145static void __init n8x0_usb_init(void) {}
146
147#endif /*CONFIG_USB_MUSB_TUSB6010 */
148
149
150static struct omap2_mcspi_device_config p54spi_mcspi_config = {
151 .turbo_mode = 0,
152};
153
154static struct spi_board_info n800_spi_board_info[] __initdata = {
155 {
156 .modalias = "p54spi",
157 .bus_num = 2,
158 .chip_select = 0,
159 .max_speed_hz = 48000000,
160 .controller_data = &p54spi_mcspi_config,
161 },
162};
163
164#if defined(CONFIG_MENELAUS) && IS_ENABLED(CONFIG_MMC_OMAP)
165
166/*
167 * On both N800 and N810, only the first of the two MMC controllers is in use.
168 * The two MMC slots are multiplexed via Menelaus companion chip over I2C.
169 * On N800, both slots are powered via Menelaus. On N810, only one of the
170 * slots is powered via Menelaus. The N810 EMMC is powered via GPIO.
171 *
172 * VMMC slot 1 on both N800 and N810
173 * VDCDC3_APE and VMCS2_APE slot 2 on N800
174 * GPIO23 and GPIO9 slot 2 EMMC on N810
175 *
176 */
177#define N8X0_SLOT_SWITCH_GPIO 96
178#define N810_EMMC_VSD_GPIO 23
179#define N810_EMMC_VIO_GPIO 9
180
181static int slot1_cover_open;
182static int slot2_cover_open;
183static struct device *mmc_device;
184
185static int n8x0_mmc_switch_slot(struct device *dev, int slot)
186{
187#ifdef CONFIG_MMC_DEBUG
188 dev_dbg(dev, "Choose slot %d\n", slot + 1);
189#endif
190 gpio_set_value(N8X0_SLOT_SWITCH_GPIO, slot);
191 return 0;
192}
193
194static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot,
195 int power_on, int vdd)
196{
197 int mV;
198
199#ifdef CONFIG_MMC_DEBUG
200 dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1,
201 power_on ? "on" : "off", vdd);
202#endif
203 if (slot == 0) {
204 if (!power_on)
205 return menelaus_set_vmmc(0);
206 switch (1 << vdd) {
207 case MMC_VDD_33_34:
208 case MMC_VDD_32_33:
209 case MMC_VDD_31_32:
210 mV = 3100;
211 break;
212 case MMC_VDD_30_31:
213 mV = 3000;
214 break;
215 case MMC_VDD_28_29:
216 mV = 2800;
217 break;
218 case MMC_VDD_165_195:
219 mV = 1850;
220 break;
221 default:
222 BUG();
223 }
224 return menelaus_set_vmmc(mV);
225 } else {
226 if (!power_on)
227 return menelaus_set_vdcdc(3, 0);
228 switch (1 << vdd) {
229 case MMC_VDD_33_34:
230 case MMC_VDD_32_33:
231 mV = 3300;
232 break;
233 case MMC_VDD_30_31:
234 case MMC_VDD_29_30:
235 mV = 3000;
236 break;
237 case MMC_VDD_28_29:
238 case MMC_VDD_27_28:
239 mV = 2800;
240 break;
241 case MMC_VDD_24_25:
242 case MMC_VDD_23_24:
243 mV = 2400;
244 break;
245 case MMC_VDD_22_23:
246 case MMC_VDD_21_22:
247 mV = 2200;
248 break;
249 case MMC_VDD_20_21:
250 mV = 2000;
251 break;
252 case MMC_VDD_165_195:
253 mV = 1800;
254 break;
255 default:
256 BUG();
257 }
258 return menelaus_set_vdcdc(3, mV);
259 }
260 return 0;
261}
262
263static void n810_set_power_emmc(struct device *dev,
264 int power_on)
265{
266 dev_dbg(dev, "Set EMMC power %s\n", power_on ? "on" : "off");
267
268 if (power_on) {
269 gpio_set_value(N810_EMMC_VSD_GPIO, 1);
270 msleep(1);
271 gpio_set_value(N810_EMMC_VIO_GPIO, 1);
272 msleep(1);
273 } else {
274 gpio_set_value(N810_EMMC_VIO_GPIO, 0);
275 msleep(50);
276 gpio_set_value(N810_EMMC_VSD_GPIO, 0);
277 msleep(50);
278 }
279}
280
281static int n8x0_mmc_set_power(struct device *dev, int slot, int power_on,
282 int vdd)
283{
284 if (board_is_n800() || slot == 0)
285 return n8x0_mmc_set_power_menelaus(dev, slot, power_on, vdd);
286
287 n810_set_power_emmc(dev, power_on);
288
289 return 0;
290}
291
292static int n8x0_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode)
293{
294 int r;
295
296 dev_dbg(dev, "Set slot %d bus mode %s\n", slot + 1,
297 bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull");
298 BUG_ON(slot != 0 && slot != 1);
299 slot++;
300 switch (bus_mode) {
301 case MMC_BUSMODE_OPENDRAIN:
302 r = menelaus_set_mmc_opendrain(slot, 1);
303 break;
304 case MMC_BUSMODE_PUSHPULL:
305 r = menelaus_set_mmc_opendrain(slot, 0);
306 break;
307 default:
308 BUG();
309 }
310 if (r != 0 && printk_ratelimit())
311 dev_err(dev, "MMC: unable to set bus mode for slot %d\n",
312 slot);
313 return r;
314}
315
316static int n8x0_mmc_get_cover_state(struct device *dev, int slot)
317{
318 slot++;
319 BUG_ON(slot != 1 && slot != 2);
320 if (slot == 1)
321 return slot1_cover_open;
322 else
323 return slot2_cover_open;
324}
325
326static void n8x0_mmc_callback(void *data, u8 card_mask)
327{
328 int bit, *openp, index;
329
330 if (board_is_n800()) {
331 bit = 1 << 1;
332 openp = &slot2_cover_open;
333 index = 1;
334 } else {
335 bit = 1;
336 openp = &slot1_cover_open;
337 index = 0;
338 }
339
340 if (card_mask & bit)
341 *openp = 1;
342 else
343 *openp = 0;
344
345#ifdef CONFIG_MMC_OMAP
346 omap_mmc_notify_cover_event(mmc_device, index, *openp);
347#else
348 pr_warn("MMC: notify cover event not available\n");
349#endif
350}
351
352static int n8x0_mmc_late_init(struct device *dev)
353{
354 int r, bit, *openp;
355 int vs2sel;
356
357 mmc_device = dev;
358
359 r = menelaus_set_slot_sel(1);
360 if (r < 0)
361 return r;
362
363 if (board_is_n800())
364 vs2sel = 0;
365 else
366 vs2sel = 2;
367
368 r = menelaus_set_mmc_slot(2, 0, vs2sel, 1);
369 if (r < 0)
370 return r;
371
372 n8x0_mmc_set_power(dev, 0, MMC_POWER_ON, 16); /* MMC_VDD_28_29 */
373 n8x0_mmc_set_power(dev, 1, MMC_POWER_ON, 16);
374
375 r = menelaus_set_mmc_slot(1, 1, 0, 1);
376 if (r < 0)
377 return r;
378 r = menelaus_set_mmc_slot(2, 1, vs2sel, 1);
379 if (r < 0)
380 return r;
381
382 r = menelaus_get_slot_pin_states();
383 if (r < 0)
384 return r;
385
386 if (board_is_n800()) {
387 bit = 1 << 1;
388 openp = &slot2_cover_open;
389 } else {
390 bit = 1;
391 openp = &slot1_cover_open;
392 slot2_cover_open = 0;
393 }
394
395 /* All slot pin bits seem to be inversed until first switch change */
396 if (r == 0xf || r == (0xf & ~bit))
397 r = ~r;
398
399 if (r & bit)
400 *openp = 1;
401 else
402 *openp = 0;
403
404 r = menelaus_register_mmc_callback(n8x0_mmc_callback, NULL);
405
406 return r;
407}
408
409static void n8x0_mmc_shutdown(struct device *dev)
410{
411 int vs2sel;
412
413 if (board_is_n800())
414 vs2sel = 0;
415 else
416 vs2sel = 2;
417
418 menelaus_set_mmc_slot(1, 0, 0, 0);
419 menelaus_set_mmc_slot(2, 0, vs2sel, 0);
420}
421
422static void n8x0_mmc_cleanup(struct device *dev)
423{
424 menelaus_unregister_mmc_callback();
425
426 gpio_free(N8X0_SLOT_SWITCH_GPIO);
427
428 if (board_is_n810()) {
429 gpio_free(N810_EMMC_VSD_GPIO);
430 gpio_free(N810_EMMC_VIO_GPIO);
431 }
432}
433
434/*
435 * MMC controller1 has two slots that are multiplexed via I2C.
436 * MMC controller2 is not in use.
437 */
438static struct omap_mmc_platform_data mmc1_data = {
439 .nr_slots = 0,
440 .switch_slot = n8x0_mmc_switch_slot,
441 .init = n8x0_mmc_late_init,
442 .cleanup = n8x0_mmc_cleanup,
443 .shutdown = n8x0_mmc_shutdown,
444 .max_freq = 24000000,
445 .slots[0] = {
446 .wires = 4,
447 .set_power = n8x0_mmc_set_power,
448 .set_bus_mode = n8x0_mmc_set_bus_mode,
449 .get_cover_state = n8x0_mmc_get_cover_state,
450 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_30_31 |
451 MMC_VDD_32_33 | MMC_VDD_33_34,
452 .name = "internal",
453 },
454 .slots[1] = {
455 .set_power = n8x0_mmc_set_power,
456 .set_bus_mode = n8x0_mmc_set_bus_mode,
457 .get_cover_state = n8x0_mmc_get_cover_state,
458 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_20_21 |
459 MMC_VDD_21_22 | MMC_VDD_22_23 |
460 MMC_VDD_23_24 | MMC_VDD_24_25 |
461 MMC_VDD_27_28 | MMC_VDD_28_29 |
462 MMC_VDD_29_30 | MMC_VDD_30_31 |
463 MMC_VDD_32_33 | MMC_VDD_33_34,
464 .name = "external",
465 },
466};
467
468static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC];
469
470static struct gpio n810_emmc_gpios[] __initdata = {
471 { N810_EMMC_VSD_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vddf" },
472 { N810_EMMC_VIO_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vdd" },
473};
474
475static void __init n8x0_mmc_init(void)
476{
477 int err;
478
479 if (board_is_n810()) {
480 mmc1_data.slots[0].name = "external";
481
482 /*
483 * Some Samsung Movinand chips do not like open-ended
484 * multi-block reads and fall to braind-dead state
485 * while doing so. Reducing the number of blocks in
486 * the transfer or delays in clock disable do not help
487 */
488 mmc1_data.slots[1].name = "internal";
489 mmc1_data.slots[1].ban_openended = 1;
490 }
491
492 err = gpio_request_one(N8X0_SLOT_SWITCH_GPIO, GPIOF_OUT_INIT_LOW,
493 "MMC slot switch");
494 if (err)
495 return;
496
497 if (board_is_n810()) {
498 err = gpio_request_array(n810_emmc_gpios,
499 ARRAY_SIZE(n810_emmc_gpios));
500 if (err) {
501 gpio_free(N8X0_SLOT_SWITCH_GPIO);
502 return;
503 }
504 }
505
506 mmc1_data.nr_slots = 2;
507 mmc_data[0] = &mmc1_data;
508}
509#else
510static struct omap_mmc_platform_data mmc1_data;
511void __init n8x0_mmc_init(void)
512{
513}
514#endif /* CONFIG_MMC_OMAP */
515
516#ifdef CONFIG_MENELAUS
517
518static int n8x0_auto_sleep_regulators(void)
519{
520 u32 val;
521 int ret;
522
523 val = EN_VPLL_SLEEP | EN_VMMC_SLEEP \
524 | EN_VAUX_SLEEP | EN_VIO_SLEEP \
525 | EN_VMEM_SLEEP | EN_DC3_SLEEP \
526 | EN_VC_SLEEP | EN_DC2_SLEEP;
527
528 ret = menelaus_set_regulator_sleep(1, val);
529 if (ret < 0) {
530 pr_err("Could not set regulators to sleep on menelaus: %u\n",
531 ret);
532 return ret;
533 }
534 return 0;
535}
536
537static int n8x0_auto_voltage_scale(void)
538{
539 int ret;
540
541 ret = menelaus_set_vcore_hw(1400, 1050);
542 if (ret < 0) {
543 pr_err("Could not set VCORE voltage on menelaus: %u\n", ret);
544 return ret;
545 }
546 return 0;
547}
548
549static int n8x0_menelaus_late_init(struct device *dev)
550{
551 int ret;
552
553 ret = n8x0_auto_voltage_scale();
554 if (ret < 0)
555 return ret;
556 ret = n8x0_auto_sleep_regulators();
557 if (ret < 0)
558 return ret;
559 return 0;
560}
561
562#else
563static int n8x0_menelaus_late_init(struct device *dev)
564{
565 return 0;
566}
567#endif
568
569struct menelaus_platform_data n8x0_menelaus_platform_data = {
570 .late_init = n8x0_menelaus_late_init,
571};
572
573struct aic3x_pdata n810_aic33_data = {
574 .gpio_reset = 118,
575};
576
577static int __init n8x0_late_initcall(void)
578{
579 if (!board_caps)
580 return -ENODEV;
581
582 n8x0_mmc_init();
583 n8x0_usb_init();
584
585 return 0;
586}
587omap_late_initcall(n8x0_late_initcall);
588
589/*
590 * Legacy init pdata init for n8x0. Note that we want to follow the
591 * I2C bus numbering starting at 0 for device tree like other omaps.
592 */
593void * __init n8x0_legacy_init(void)
594{
595 board_check_revision();
596 spi_register_board_info(n800_spi_board_info,
597 ARRAY_SIZE(n800_spi_board_info));
598 return &mmc1_data;
599}