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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/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/platform_data/spi-omap2-mcspi.h>
25#include <linux/platform_data/mtd-onenand-omap2.h>
26#include <linux/mfd/menelaus.h>
27#include <sound/tlv320aic3x.h>
28
29#include <asm/mach/arch.h>
30#include <asm/mach-types.h>
31
32#include "common.h"
33#include "mmc.h"
34#include "soc.h"
35#include "gpmc-onenand.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#define NOKIA_N810_WIMAX (1 << 2)
44#define NOKIA_N810 (1 << 1)
45#define NOKIA_N800 (1 << 0)
46
47static u32 board_caps;
48
49#define board_is_n800() (board_caps & NOKIA_N800)
50#define board_is_n810() (board_caps & NOKIA_N810)
51#define board_is_n810_wimax() (board_caps & NOKIA_N810_WIMAX)
52
53static void board_check_revision(void)
54{
55 if (of_have_populated_dt()) {
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
64 if (!board_caps)
65 pr_err("Unknown board\n");
66}
67
68#if defined(CONFIG_USB_MUSB_TUSB6010) || defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
69/*
70 * Enable or disable power to TUSB6010. When enabling, turn on 3.3 V and
71 * 1.5 V voltage regulators of PM companion chip. Companion chip will then
72 * provide then PGOOD signal to TUSB6010 which will release it from reset.
73 */
74static int tusb_set_power(int state)
75{
76 int i, retval = 0;
77
78 if (state) {
79 gpio_set_value(TUSB6010_GPIO_ENABLE, 1);
80 msleep(1);
81
82 /* Wait until TUSB6010 pulls INT pin down */
83 i = 100;
84 while (i && gpio_get_value(TUSB6010_GPIO_INT)) {
85 msleep(1);
86 i--;
87 }
88
89 if (!i) {
90 printk(KERN_ERR "tusb: powerup failed\n");
91 retval = -ENODEV;
92 }
93 } else {
94 gpio_set_value(TUSB6010_GPIO_ENABLE, 0);
95 msleep(10);
96 }
97
98 return retval;
99}
100
101static struct musb_hdrc_config musb_config = {
102 .multipoint = 1,
103 .dyn_fifo = 1,
104 .num_eps = 16,
105 .ram_bits = 12,
106};
107
108static struct musb_hdrc_platform_data tusb_data = {
109 .mode = MUSB_OTG,
110 .set_power = tusb_set_power,
111 .min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */
112 .power = 100, /* Max 100 mA VBUS for host mode */
113 .config = &musb_config,
114};
115
116static void __init n8x0_usb_init(void)
117{
118 int ret = 0;
119 static char announce[] __initdata = KERN_INFO "TUSB 6010\n";
120
121 /* PM companion chip power control pin */
122 ret = gpio_request_one(TUSB6010_GPIO_ENABLE, GPIOF_OUT_INIT_LOW,
123 "TUSB6010 enable");
124 if (ret != 0) {
125 printk(KERN_ERR "Could not get TUSB power GPIO%i\n",
126 TUSB6010_GPIO_ENABLE);
127 return;
128 }
129 tusb_set_power(0);
130
131 ret = tusb6010_setup_interface(&tusb_data, TUSB6010_REFCLK_19, 2,
132 TUSB6010_ASYNC_CS, TUSB6010_SYNC_CS,
133 TUSB6010_GPIO_INT, TUSB6010_DMACHAN);
134 if (ret != 0)
135 goto err;
136
137 printk(announce);
138
139 return;
140
141err:
142 gpio_free(TUSB6010_GPIO_ENABLE);
143}
144#else
145
146static void __init n8x0_usb_init(void) {}
147
148#endif /*CONFIG_USB_MUSB_TUSB6010 */
149
150
151static struct omap2_mcspi_device_config p54spi_mcspi_config = {
152 .turbo_mode = 0,
153};
154
155static struct spi_board_info n800_spi_board_info[] __initdata = {
156 {
157 .modalias = "p54spi",
158 .bus_num = 2,
159 .chip_select = 0,
160 .max_speed_hz = 48000000,
161 .controller_data = &p54spi_mcspi_config,
162 },
163};
164
165#if defined(CONFIG_MENELAUS) && \
166 (defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE))
167
168/*
169 * On both N800 and N810, only the first of the two MMC controllers is in use.
170 * The two MMC slots are multiplexed via Menelaus companion chip over I2C.
171 * On N800, both slots are powered via Menelaus. On N810, only one of the
172 * slots is powered via Menelaus. The N810 EMMC is powered via GPIO.
173 *
174 * VMMC slot 1 on both N800 and N810
175 * VDCDC3_APE and VMCS2_APE slot 2 on N800
176 * GPIO23 and GPIO9 slot 2 EMMC on N810
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); /* MMC_VDD_28_29 */
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 /* All slot pin bits seem to be inversed until first switch change */
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 * MMC controller1 has two slots that are multiplexed via I2C.
438 * MMC controller2 is not in use.
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 * Some Samsung Movinand chips do not like open-ended
486 * multi-block reads and fall to braind-dead state
487 * while doing so. Reducing the number of blocks in
488 * the transfer or delays in clock disable do not help
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 /* CONFIG_MMC_OMAP */
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
571static struct menelaus_platform_data n8x0_menelaus_platform_data __initdata = {
572 .late_init = n8x0_menelaus_late_init,
573};
574
575static struct i2c_board_info __initdata n8x0_i2c_board_info_1[] __initdata = {
576 {
577 I2C_BOARD_INFO("menelaus", 0x72),
578 .irq = 7 + OMAP_INTC_START,
579 .platform_data = &n8x0_menelaus_platform_data,
580 },
581};
582
583static struct aic3x_pdata n810_aic33_data __initdata = {
584 .gpio_reset = 118,
585};
586
587static struct i2c_board_info n810_i2c_board_info_2[] __initdata = {
588 {
589 I2C_BOARD_INFO("tlv320aic3x", 0x18),
590 .platform_data = &n810_aic33_data,
591 },
592};
593
594static int __init n8x0_late_initcall(void)
595{
596 if (!board_caps)
597 return -ENODEV;
598
599 n8x0_mmc_init();
600 n8x0_usb_init();
601
602 return 0;
603}
604omap_late_initcall(n8x0_late_initcall);
605
606/*
607 * Legacy init pdata init for n8x0. Note that we want to follow the
608 * I2C bus numbering starting at 0 for device tree like other omaps.
609 */
610void * __init n8x0_legacy_init(void)
611{
612 board_check_revision();
613 spi_register_board_info(n800_spi_board_info,
614 ARRAY_SIZE(n800_spi_board_info));
615 i2c_register_board_info(0, n8x0_i2c_board_info_1,
616 ARRAY_SIZE(n8x0_i2c_board_info_1));
617 if (board_is_n810())
618 i2c_register_board_info(1, n810_i2c_board_info_2,
619 ARRAY_SIZE(n810_i2c_board_info_2));
620
621 return &mmc1_data;
622}
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * linux/arch/arm/mach-omap2/board-n8x0.c
4 *
5 * Copyright (C) 2005-2009 Nokia Corporation
6 * Author: Juha Yrjola <juha.yrjola@nokia.com>
7 *
8 * Modified from mach-omap2/board-generic.c
9 */
10
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
26#include <asm/mach/arch.h>
27#include <asm/mach-types.h>
28
29#include "common.h"
30#include "mmc.h"
31#include "soc.h"
32#include "common-board-devices.h"
33
34#define TUSB6010_ASYNC_CS 1
35#define TUSB6010_SYNC_CS 4
36#define TUSB6010_GPIO_INT 58
37#define TUSB6010_GPIO_ENABLE 0
38#define TUSB6010_DMACHAN 0x3f
39
40#define NOKIA_N810_WIMAX (1 << 2)
41#define NOKIA_N810 (1 << 1)
42#define NOKIA_N800 (1 << 0)
43
44static u32 board_caps;
45
46#define board_is_n800() (board_caps & NOKIA_N800)
47#define board_is_n810() (board_caps & NOKIA_N810)
48#define board_is_n810_wimax() (board_caps & NOKIA_N810_WIMAX)
49
50static void board_check_revision(void)
51{
52 if (of_machine_is_compatible("nokia,n800"))
53 board_caps = NOKIA_N800;
54 else if (of_machine_is_compatible("nokia,n810"))
55 board_caps = NOKIA_N810;
56 else if (of_machine_is_compatible("nokia,n810-wimax"))
57 board_caps = NOKIA_N810_WIMAX;
58
59 if (!board_caps)
60 pr_err("Unknown board\n");
61}
62
63#if IS_ENABLED(CONFIG_USB_MUSB_TUSB6010)
64/*
65 * Enable or disable power to TUSB6010. When enabling, turn on 3.3 V and
66 * 1.5 V voltage regulators of PM companion chip. Companion chip will then
67 * provide then PGOOD signal to TUSB6010 which will release it from reset.
68 */
69static int tusb_set_power(int state)
70{
71 int i, retval = 0;
72
73 if (state) {
74 gpio_set_value(TUSB6010_GPIO_ENABLE, 1);
75 msleep(1);
76
77 /* Wait until TUSB6010 pulls INT pin down */
78 i = 100;
79 while (i && gpio_get_value(TUSB6010_GPIO_INT)) {
80 msleep(1);
81 i--;
82 }
83
84 if (!i) {
85 printk(KERN_ERR "tusb: powerup failed\n");
86 retval = -ENODEV;
87 }
88 } else {
89 gpio_set_value(TUSB6010_GPIO_ENABLE, 0);
90 msleep(10);
91 }
92
93 return retval;
94}
95
96static struct musb_hdrc_config musb_config = {
97 .multipoint = 1,
98 .dyn_fifo = 1,
99 .num_eps = 16,
100 .ram_bits = 12,
101};
102
103static struct musb_hdrc_platform_data tusb_data = {
104 .mode = MUSB_OTG,
105 .set_power = tusb_set_power,
106 .min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */
107 .power = 100, /* Max 100 mA VBUS for host mode */
108 .config = &musb_config,
109};
110
111static void __init n8x0_usb_init(void)
112{
113 int ret = 0;
114 static const char announce[] __initconst = KERN_INFO "TUSB 6010\n";
115
116 /* PM companion chip power control pin */
117 ret = gpio_request_one(TUSB6010_GPIO_ENABLE, GPIOF_OUT_INIT_LOW,
118 "TUSB6010 enable");
119 if (ret != 0) {
120 printk(KERN_ERR "Could not get TUSB power GPIO%i\n",
121 TUSB6010_GPIO_ENABLE);
122 return;
123 }
124 tusb_set_power(0);
125
126 ret = tusb6010_setup_interface(&tusb_data, TUSB6010_REFCLK_19, 2,
127 TUSB6010_ASYNC_CS, TUSB6010_SYNC_CS,
128 TUSB6010_GPIO_INT, TUSB6010_DMACHAN);
129 if (ret != 0)
130 goto err;
131
132 printk(announce);
133
134 return;
135
136err:
137 gpio_free(TUSB6010_GPIO_ENABLE);
138}
139#else
140
141static void __init n8x0_usb_init(void) {}
142
143#endif /*CONFIG_USB_MUSB_TUSB6010 */
144
145
146static struct omap2_mcspi_device_config p54spi_mcspi_config = {
147 .turbo_mode = 0,
148};
149
150static struct spi_board_info n800_spi_board_info[] __initdata = {
151 {
152 .modalias = "p54spi",
153 .bus_num = 2,
154 .chip_select = 0,
155 .max_speed_hz = 48000000,
156 .controller_data = &p54spi_mcspi_config,
157 },
158};
159
160#if defined(CONFIG_MENELAUS) && IS_ENABLED(CONFIG_MMC_OMAP)
161
162/*
163 * On both N800 and N810, only the first of the two MMC controllers is in use.
164 * The two MMC slots are multiplexed via Menelaus companion chip over I2C.
165 * On N800, both slots are powered via Menelaus. On N810, only one of the
166 * slots is powered via Menelaus. The N810 EMMC is powered via GPIO.
167 *
168 * VMMC slot 1 on both N800 and N810
169 * VDCDC3_APE and VMCS2_APE slot 2 on N800
170 * GPIO23 and GPIO9 slot 2 EMMC on N810
171 *
172 */
173#define N8X0_SLOT_SWITCH_GPIO 96
174#define N810_EMMC_VSD_GPIO 23
175#define N810_EMMC_VIO_GPIO 9
176
177static int slot1_cover_open;
178static int slot2_cover_open;
179static struct device *mmc_device;
180
181static int n8x0_mmc_switch_slot(struct device *dev, int slot)
182{
183#ifdef CONFIG_MMC_DEBUG
184 dev_dbg(dev, "Choose slot %d\n", slot + 1);
185#endif
186 gpio_set_value(N8X0_SLOT_SWITCH_GPIO, slot);
187 return 0;
188}
189
190static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot,
191 int power_on, int vdd)
192{
193 int mV;
194
195#ifdef CONFIG_MMC_DEBUG
196 dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1,
197 power_on ? "on" : "off", vdd);
198#endif
199 if (slot == 0) {
200 if (!power_on)
201 return menelaus_set_vmmc(0);
202 switch (1 << vdd) {
203 case MMC_VDD_33_34:
204 case MMC_VDD_32_33:
205 case MMC_VDD_31_32:
206 mV = 3100;
207 break;
208 case MMC_VDD_30_31:
209 mV = 3000;
210 break;
211 case MMC_VDD_28_29:
212 mV = 2800;
213 break;
214 case MMC_VDD_165_195:
215 mV = 1850;
216 break;
217 default:
218 BUG();
219 }
220 return menelaus_set_vmmc(mV);
221 } else {
222 if (!power_on)
223 return menelaus_set_vdcdc(3, 0);
224 switch (1 << vdd) {
225 case MMC_VDD_33_34:
226 case MMC_VDD_32_33:
227 mV = 3300;
228 break;
229 case MMC_VDD_30_31:
230 case MMC_VDD_29_30:
231 mV = 3000;
232 break;
233 case MMC_VDD_28_29:
234 case MMC_VDD_27_28:
235 mV = 2800;
236 break;
237 case MMC_VDD_24_25:
238 case MMC_VDD_23_24:
239 mV = 2400;
240 break;
241 case MMC_VDD_22_23:
242 case MMC_VDD_21_22:
243 mV = 2200;
244 break;
245 case MMC_VDD_20_21:
246 mV = 2000;
247 break;
248 case MMC_VDD_165_195:
249 mV = 1800;
250 break;
251 default:
252 BUG();
253 }
254 return menelaus_set_vdcdc(3, mV);
255 }
256 return 0;
257}
258
259static void n810_set_power_emmc(struct device *dev,
260 int power_on)
261{
262 dev_dbg(dev, "Set EMMC power %s\n", power_on ? "on" : "off");
263
264 if (power_on) {
265 gpio_set_value(N810_EMMC_VSD_GPIO, 1);
266 msleep(1);
267 gpio_set_value(N810_EMMC_VIO_GPIO, 1);
268 msleep(1);
269 } else {
270 gpio_set_value(N810_EMMC_VIO_GPIO, 0);
271 msleep(50);
272 gpio_set_value(N810_EMMC_VSD_GPIO, 0);
273 msleep(50);
274 }
275}
276
277static int n8x0_mmc_set_power(struct device *dev, int slot, int power_on,
278 int vdd)
279{
280 if (board_is_n800() || slot == 0)
281 return n8x0_mmc_set_power_menelaus(dev, slot, power_on, vdd);
282
283 n810_set_power_emmc(dev, power_on);
284
285 return 0;
286}
287
288static int n8x0_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode)
289{
290 int r;
291
292 dev_dbg(dev, "Set slot %d bus mode %s\n", slot + 1,
293 bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull");
294 BUG_ON(slot != 0 && slot != 1);
295 slot++;
296 switch (bus_mode) {
297 case MMC_BUSMODE_OPENDRAIN:
298 r = menelaus_set_mmc_opendrain(slot, 1);
299 break;
300 case MMC_BUSMODE_PUSHPULL:
301 r = menelaus_set_mmc_opendrain(slot, 0);
302 break;
303 default:
304 BUG();
305 }
306 if (r != 0 && printk_ratelimit())
307 dev_err(dev, "MMC: unable to set bus mode for slot %d\n",
308 slot);
309 return r;
310}
311
312static int n8x0_mmc_get_cover_state(struct device *dev, int slot)
313{
314 slot++;
315 BUG_ON(slot != 1 && slot != 2);
316 if (slot == 1)
317 return slot1_cover_open;
318 else
319 return slot2_cover_open;
320}
321
322static void n8x0_mmc_callback(void *data, u8 card_mask)
323{
324#ifdef CONFIG_MMC_OMAP
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 omap_mmc_notify_cover_event(mmc_device, index, *openp);
343#else
344 pr_warn("MMC: notify cover event not available\n");
345#endif
346}
347
348static int n8x0_mmc_late_init(struct device *dev)
349{
350 int r, bit, *openp;
351 int vs2sel;
352
353 mmc_device = dev;
354
355 r = menelaus_set_slot_sel(1);
356 if (r < 0)
357 return r;
358
359 if (board_is_n800())
360 vs2sel = 0;
361 else
362 vs2sel = 2;
363
364 r = menelaus_set_mmc_slot(2, 0, vs2sel, 1);
365 if (r < 0)
366 return r;
367
368 n8x0_mmc_set_power(dev, 0, MMC_POWER_ON, 16); /* MMC_VDD_28_29 */
369 n8x0_mmc_set_power(dev, 1, MMC_POWER_ON, 16);
370
371 r = menelaus_set_mmc_slot(1, 1, 0, 1);
372 if (r < 0)
373 return r;
374 r = menelaus_set_mmc_slot(2, 1, vs2sel, 1);
375 if (r < 0)
376 return r;
377
378 r = menelaus_get_slot_pin_states();
379 if (r < 0)
380 return r;
381
382 if (board_is_n800()) {
383 bit = 1 << 1;
384 openp = &slot2_cover_open;
385 } else {
386 bit = 1;
387 openp = &slot1_cover_open;
388 slot2_cover_open = 0;
389 }
390
391 /* All slot pin bits seem to be inversed until first switch change */
392 if (r == 0xf || r == (0xf & ~bit))
393 r = ~r;
394
395 if (r & bit)
396 *openp = 1;
397 else
398 *openp = 0;
399
400 r = menelaus_register_mmc_callback(n8x0_mmc_callback, NULL);
401
402 return r;
403}
404
405static void n8x0_mmc_shutdown(struct device *dev)
406{
407 int vs2sel;
408
409 if (board_is_n800())
410 vs2sel = 0;
411 else
412 vs2sel = 2;
413
414 menelaus_set_mmc_slot(1, 0, 0, 0);
415 menelaus_set_mmc_slot(2, 0, vs2sel, 0);
416}
417
418static void n8x0_mmc_cleanup(struct device *dev)
419{
420 menelaus_unregister_mmc_callback();
421
422 gpio_free(N8X0_SLOT_SWITCH_GPIO);
423
424 if (board_is_n810()) {
425 gpio_free(N810_EMMC_VSD_GPIO);
426 gpio_free(N810_EMMC_VIO_GPIO);
427 }
428}
429
430/*
431 * MMC controller1 has two slots that are multiplexed via I2C.
432 * MMC controller2 is not in use.
433 */
434static struct omap_mmc_platform_data mmc1_data = {
435 .nr_slots = 0,
436 .switch_slot = n8x0_mmc_switch_slot,
437 .init = n8x0_mmc_late_init,
438 .cleanup = n8x0_mmc_cleanup,
439 .shutdown = n8x0_mmc_shutdown,
440 .max_freq = 24000000,
441 .slots[0] = {
442 .wires = 4,
443 .set_power = n8x0_mmc_set_power,
444 .set_bus_mode = n8x0_mmc_set_bus_mode,
445 .get_cover_state = n8x0_mmc_get_cover_state,
446 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_30_31 |
447 MMC_VDD_32_33 | MMC_VDD_33_34,
448 .name = "internal",
449 },
450 .slots[1] = {
451 .set_power = n8x0_mmc_set_power,
452 .set_bus_mode = n8x0_mmc_set_bus_mode,
453 .get_cover_state = n8x0_mmc_get_cover_state,
454 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_20_21 |
455 MMC_VDD_21_22 | MMC_VDD_22_23 |
456 MMC_VDD_23_24 | MMC_VDD_24_25 |
457 MMC_VDD_27_28 | MMC_VDD_28_29 |
458 MMC_VDD_29_30 | MMC_VDD_30_31 |
459 MMC_VDD_32_33 | MMC_VDD_33_34,
460 .name = "external",
461 },
462};
463
464static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC];
465
466static struct gpio n810_emmc_gpios[] __initdata = {
467 { N810_EMMC_VSD_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vddf" },
468 { N810_EMMC_VIO_GPIO, GPIOF_OUT_INIT_LOW, "MMC slot 2 Vdd" },
469};
470
471static void __init n8x0_mmc_init(void)
472{
473 int err;
474
475 if (board_is_n810()) {
476 mmc1_data.slots[0].name = "external";
477
478 /*
479 * Some Samsung Movinand chips do not like open-ended
480 * multi-block reads and fall to braind-dead state
481 * while doing so. Reducing the number of blocks in
482 * the transfer or delays in clock disable do not help
483 */
484 mmc1_data.slots[1].name = "internal";
485 mmc1_data.slots[1].ban_openended = 1;
486 }
487
488 err = gpio_request_one(N8X0_SLOT_SWITCH_GPIO, GPIOF_OUT_INIT_LOW,
489 "MMC slot switch");
490 if (err)
491 return;
492
493 if (board_is_n810()) {
494 err = gpio_request_array(n810_emmc_gpios,
495 ARRAY_SIZE(n810_emmc_gpios));
496 if (err) {
497 gpio_free(N8X0_SLOT_SWITCH_GPIO);
498 return;
499 }
500 }
501
502 mmc1_data.nr_slots = 2;
503 mmc_data[0] = &mmc1_data;
504}
505#else
506static struct omap_mmc_platform_data mmc1_data;
507void __init n8x0_mmc_init(void)
508{
509}
510#endif /* CONFIG_MMC_OMAP */
511
512#ifdef CONFIG_MENELAUS
513
514static int n8x0_auto_sleep_regulators(void)
515{
516 u32 val;
517 int ret;
518
519 val = EN_VPLL_SLEEP | EN_VMMC_SLEEP \
520 | EN_VAUX_SLEEP | EN_VIO_SLEEP \
521 | EN_VMEM_SLEEP | EN_DC3_SLEEP \
522 | EN_VC_SLEEP | EN_DC2_SLEEP;
523
524 ret = menelaus_set_regulator_sleep(1, val);
525 if (ret < 0) {
526 pr_err("Could not set regulators to sleep on menelaus: %u\n",
527 ret);
528 return ret;
529 }
530 return 0;
531}
532
533static int n8x0_auto_voltage_scale(void)
534{
535 int ret;
536
537 ret = menelaus_set_vcore_hw(1400, 1050);
538 if (ret < 0) {
539 pr_err("Could not set VCORE voltage on menelaus: %u\n", ret);
540 return ret;
541 }
542 return 0;
543}
544
545static int n8x0_menelaus_late_init(struct device *dev)
546{
547 int ret;
548
549 ret = n8x0_auto_voltage_scale();
550 if (ret < 0)
551 return ret;
552 ret = n8x0_auto_sleep_regulators();
553 if (ret < 0)
554 return ret;
555 return 0;
556}
557
558#else
559static int n8x0_menelaus_late_init(struct device *dev)
560{
561 return 0;
562}
563#endif
564
565struct menelaus_platform_data n8x0_menelaus_platform_data = {
566 .late_init = n8x0_menelaus_late_init,
567};
568
569static int __init n8x0_late_initcall(void)
570{
571 if (!board_caps)
572 return -ENODEV;
573
574 n8x0_mmc_init();
575 n8x0_usb_init();
576
577 return 0;
578}
579omap_late_initcall(n8x0_late_initcall);
580
581/*
582 * Legacy init pdata init for n8x0. Note that we want to follow the
583 * I2C bus numbering starting at 0 for device tree like other omaps.
584 */
585void * __init n8x0_legacy_init(void)
586{
587 board_check_revision();
588 spi_register_board_info(n800_spi_board_info,
589 ARRAY_SIZE(n800_spi_board_info));
590 return &mmc1_data;
591}