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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/machine.h>
14#include <linux/gpio/consumer.h>
15#include <linux/init.h>
16#include <linux/io.h>
17#include <linux/irq.h>
18#include <linux/stddef.h>
19#include <linux/i2c.h>
20#include <linux/spi/spi.h>
21#include <linux/usb/musb.h>
22#include <linux/mmc/host.h>
23#include <linux/platform_data/spi-omap2-mcspi.h>
24#include <linux/platform_data/mmc-omap.h>
25#include <linux/mfd/menelaus.h>
26
27#include <asm/mach/arch.h>
28#include <asm/mach-types.h>
29
30#include "common.h"
31#include "mmc.h"
32#include "usb-tusb6010.h"
33#include "soc.h"
34#include "common-board-devices.h"
35
36#define TUSB6010_ASYNC_CS 1
37#define TUSB6010_SYNC_CS 4
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
65static struct musb_hdrc_config musb_config = {
66 .multipoint = 1,
67 .dyn_fifo = 1,
68 .num_eps = 16,
69 .ram_bits = 12,
70};
71
72static struct musb_hdrc_platform_data tusb_data = {
73 .mode = MUSB_OTG,
74 .min_power = 25, /* x2 = 50 mA drawn from VBUS as peripheral */
75 .power = 100, /* Max 100 mA VBUS for host mode */
76 .config = &musb_config,
77};
78
79static struct gpiod_lookup_table tusb_gpio_table = {
80 .dev_id = "musb-tusb",
81 .table = {
82 GPIO_LOOKUP("gpio-0-31", 0, "enable", GPIO_ACTIVE_HIGH),
83 GPIO_LOOKUP("gpio-32-63", 26, "int", GPIO_ACTIVE_HIGH),
84 { }
85 },
86};
87
88static void __init n8x0_usb_init(void)
89{
90 int ret = 0;
91
92 gpiod_add_lookup_table(&tusb_gpio_table);
93 ret = tusb6010_setup_interface(&tusb_data, TUSB6010_REFCLK_19, 2,
94 TUSB6010_ASYNC_CS, TUSB6010_SYNC_CS,
95 TUSB6010_DMACHAN);
96 if (ret != 0)
97 return;
98
99 pr_info("TUSB 6010\n");
100
101 return;
102}
103#else
104
105static void __init n8x0_usb_init(void) {}
106
107#endif /*CONFIG_USB_MUSB_TUSB6010 */
108
109
110static struct omap2_mcspi_device_config p54spi_mcspi_config = {
111 .turbo_mode = 0,
112};
113
114static struct spi_board_info n800_spi_board_info[] __initdata = {
115 {
116 .modalias = "p54spi",
117 .bus_num = 2,
118 .chip_select = 0,
119 .max_speed_hz = 48000000,
120 .controller_data = &p54spi_mcspi_config,
121 },
122};
123
124#if defined(CONFIG_MENELAUS) && IS_ENABLED(CONFIG_MMC_OMAP)
125
126/*
127 * On both N800 and N810, only the first of the two MMC controllers is in use.
128 * The two MMC slots are multiplexed via Menelaus companion chip over I2C.
129 * On N800, both slots are powered via Menelaus. On N810, only one of the
130 * slots is powered via Menelaus. The N810 EMMC is powered via GPIO.
131 *
132 * VMMC slot 1 on both N800 and N810
133 * VDCDC3_APE and VMCS2_APE slot 2 on N800
134 * GPIO23 and GPIO9 slot 2 EMMC on N810
135 *
136 */
137static int slot1_cover_open;
138static int slot2_cover_open;
139static struct device *mmc_device;
140
141static struct gpiod_lookup_table nokia800_mmc_gpio_table = {
142 .dev_id = "mmci-omap.0",
143 .table = {
144 /* Slot switch, GPIO 96 */
145 GPIO_LOOKUP("gpio-96-127", 0, "switch", GPIO_ACTIVE_HIGH),
146 { }
147 },
148};
149
150static struct gpiod_lookup_table nokia810_mmc_gpio_table = {
151 .dev_id = "mmci-omap.0",
152 .table = {
153 /* Slot switch, GPIO 96 */
154 GPIO_LOOKUP("gpio-96-127", 0, "switch", GPIO_ACTIVE_HIGH),
155 /* Slot index 1, VSD power, GPIO 23 */
156 GPIO_LOOKUP_IDX("gpio-0-31", 23, "vsd", 1, GPIO_ACTIVE_HIGH),
157 /* Slot index 1, VIO power, GPIO 9 */
158 GPIO_LOOKUP_IDX("gpio-0-31", 9, "vio", 1, GPIO_ACTIVE_HIGH),
159 { }
160 },
161};
162
163static int n8x0_mmc_set_power_menelaus(struct device *dev, int slot,
164 int power_on, int vdd)
165{
166 int mV;
167
168#ifdef CONFIG_MMC_DEBUG
169 dev_dbg(dev, "Set slot %d power: %s (vdd %d)\n", slot + 1,
170 power_on ? "on" : "off", vdd);
171#endif
172 if (slot == 0) {
173 if (!power_on)
174 return menelaus_set_vmmc(0);
175 switch (1 << vdd) {
176 case MMC_VDD_33_34:
177 case MMC_VDD_32_33:
178 case MMC_VDD_31_32:
179 mV = 3100;
180 break;
181 case MMC_VDD_30_31:
182 mV = 3000;
183 break;
184 case MMC_VDD_28_29:
185 mV = 2800;
186 break;
187 case MMC_VDD_165_195:
188 mV = 1850;
189 break;
190 default:
191 BUG();
192 }
193 return menelaus_set_vmmc(mV);
194 } else {
195 if (!power_on)
196 return menelaus_set_vdcdc(3, 0);
197 switch (1 << vdd) {
198 case MMC_VDD_33_34:
199 case MMC_VDD_32_33:
200 mV = 3300;
201 break;
202 case MMC_VDD_30_31:
203 case MMC_VDD_29_30:
204 mV = 3000;
205 break;
206 case MMC_VDD_28_29:
207 case MMC_VDD_27_28:
208 mV = 2800;
209 break;
210 case MMC_VDD_24_25:
211 case MMC_VDD_23_24:
212 mV = 2400;
213 break;
214 case MMC_VDD_22_23:
215 case MMC_VDD_21_22:
216 mV = 2200;
217 break;
218 case MMC_VDD_20_21:
219 mV = 2000;
220 break;
221 case MMC_VDD_165_195:
222 mV = 1800;
223 break;
224 default:
225 BUG();
226 }
227 return menelaus_set_vdcdc(3, mV);
228 }
229 return 0;
230}
231
232static int n8x0_mmc_set_power(struct device *dev, int slot, int power_on,
233 int vdd)
234{
235 if (board_is_n800() || slot == 0)
236 return n8x0_mmc_set_power_menelaus(dev, slot, power_on, vdd);
237
238 /* The n810 power will be handled by GPIO code in the driver */
239
240 return 0;
241}
242
243static int n8x0_mmc_set_bus_mode(struct device *dev, int slot, int bus_mode)
244{
245 int r;
246
247 dev_dbg(dev, "Set slot %d bus mode %s\n", slot + 1,
248 bus_mode == MMC_BUSMODE_OPENDRAIN ? "open-drain" : "push-pull");
249 BUG_ON(slot != 0 && slot != 1);
250 slot++;
251 switch (bus_mode) {
252 case MMC_BUSMODE_OPENDRAIN:
253 r = menelaus_set_mmc_opendrain(slot, 1);
254 break;
255 case MMC_BUSMODE_PUSHPULL:
256 r = menelaus_set_mmc_opendrain(slot, 0);
257 break;
258 default:
259 BUG();
260 }
261 if (r != 0 && printk_ratelimit())
262 dev_err(dev, "MMC: unable to set bus mode for slot %d\n",
263 slot);
264 return r;
265}
266
267static int n8x0_mmc_get_cover_state(struct device *dev, int slot)
268{
269 slot++;
270 BUG_ON(slot != 1 && slot != 2);
271 if (slot == 1)
272 return slot1_cover_open;
273 else
274 return slot2_cover_open;
275}
276
277static void n8x0_mmc_callback(void *data, u8 card_mask)
278{
279#ifdef CONFIG_MMC_OMAP
280 int bit, *openp, index;
281
282 if (board_is_n800()) {
283 bit = 1 << 1;
284 openp = &slot2_cover_open;
285 index = 1;
286 } else {
287 bit = 1;
288 openp = &slot1_cover_open;
289 index = 0;
290 }
291
292 if (card_mask & bit)
293 *openp = 1;
294 else
295 *openp = 0;
296
297 omap_mmc_notify_cover_event(mmc_device, index, *openp);
298#else
299 pr_warn("MMC: notify cover event not available\n");
300#endif
301}
302
303static int n8x0_mmc_late_init(struct device *dev)
304{
305 int r, bit, *openp;
306 int vs2sel;
307
308 mmc_device = dev;
309
310 r = menelaus_set_slot_sel(1);
311 if (r < 0)
312 return r;
313
314 if (board_is_n800())
315 vs2sel = 0;
316 else
317 vs2sel = 2;
318
319 r = menelaus_set_mmc_slot(2, 0, vs2sel, 1);
320 if (r < 0)
321 return r;
322
323 n8x0_mmc_set_power(dev, 0, MMC_POWER_ON, 16); /* MMC_VDD_28_29 */
324 n8x0_mmc_set_power(dev, 1, MMC_POWER_ON, 16);
325
326 r = menelaus_set_mmc_slot(1, 1, 0, 1);
327 if (r < 0)
328 return r;
329 r = menelaus_set_mmc_slot(2, 1, vs2sel, 1);
330 if (r < 0)
331 return r;
332
333 r = menelaus_get_slot_pin_states();
334 if (r < 0)
335 return r;
336
337 if (board_is_n800()) {
338 bit = 1 << 1;
339 openp = &slot2_cover_open;
340 } else {
341 bit = 1;
342 openp = &slot1_cover_open;
343 slot2_cover_open = 0;
344 }
345
346 /* All slot pin bits seem to be inversed until first switch change */
347 if (r == 0xf || r == (0xf & ~bit))
348 r = ~r;
349
350 if (r & bit)
351 *openp = 1;
352 else
353 *openp = 0;
354
355 r = menelaus_register_mmc_callback(n8x0_mmc_callback, NULL);
356
357 return r;
358}
359
360static void n8x0_mmc_shutdown(struct device *dev)
361{
362 int vs2sel;
363
364 if (board_is_n800())
365 vs2sel = 0;
366 else
367 vs2sel = 2;
368
369 menelaus_set_mmc_slot(1, 0, 0, 0);
370 menelaus_set_mmc_slot(2, 0, vs2sel, 0);
371}
372
373static void n8x0_mmc_cleanup(struct device *dev)
374{
375 menelaus_unregister_mmc_callback();
376}
377
378/*
379 * MMC controller1 has two slots that are multiplexed via I2C.
380 * MMC controller2 is not in use.
381 */
382static struct omap_mmc_platform_data mmc1_data = {
383 .nr_slots = 0,
384 .init = n8x0_mmc_late_init,
385 .cleanup = n8x0_mmc_cleanup,
386 .shutdown = n8x0_mmc_shutdown,
387 .max_freq = 24000000,
388 .slots[0] = {
389 .wires = 4,
390 .set_power = n8x0_mmc_set_power,
391 .set_bus_mode = n8x0_mmc_set_bus_mode,
392 .get_cover_state = n8x0_mmc_get_cover_state,
393 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_30_31 |
394 MMC_VDD_32_33 | MMC_VDD_33_34,
395 .name = "internal",
396 },
397 .slots[1] = {
398 .set_power = n8x0_mmc_set_power,
399 .set_bus_mode = n8x0_mmc_set_bus_mode,
400 .get_cover_state = n8x0_mmc_get_cover_state,
401 .ocr_mask = MMC_VDD_165_195 | MMC_VDD_20_21 |
402 MMC_VDD_21_22 | MMC_VDD_22_23 |
403 MMC_VDD_23_24 | MMC_VDD_24_25 |
404 MMC_VDD_27_28 | MMC_VDD_28_29 |
405 MMC_VDD_29_30 | MMC_VDD_30_31 |
406 MMC_VDD_32_33 | MMC_VDD_33_34,
407 .name = "external",
408 },
409};
410
411static struct omap_mmc_platform_data *mmc_data[OMAP24XX_NR_MMC];
412
413static void __init n8x0_mmc_init(void)
414{
415 if (board_is_n810()) {
416 mmc1_data.slots[0].name = "external";
417
418 /*
419 * Some Samsung Movinand chips do not like open-ended
420 * multi-block reads and fall to braind-dead state
421 * while doing so. Reducing the number of blocks in
422 * the transfer or delays in clock disable do not help
423 */
424 mmc1_data.slots[1].name = "internal";
425 mmc1_data.slots[1].ban_openended = 1;
426 gpiod_add_lookup_table(&nokia810_mmc_gpio_table);
427 } else {
428 gpiod_add_lookup_table(&nokia800_mmc_gpio_table);
429 }
430
431 mmc1_data.nr_slots = 2;
432 mmc_data[0] = &mmc1_data;
433}
434#else
435static struct omap_mmc_platform_data mmc1_data;
436static void __init n8x0_mmc_init(void)
437{
438}
439#endif /* CONFIG_MMC_OMAP */
440
441#ifdef CONFIG_MENELAUS
442
443static int n8x0_auto_sleep_regulators(void)
444{
445 u32 val;
446 int ret;
447
448 val = EN_VPLL_SLEEP | EN_VMMC_SLEEP \
449 | EN_VAUX_SLEEP | EN_VIO_SLEEP \
450 | EN_VMEM_SLEEP | EN_DC3_SLEEP \
451 | EN_VC_SLEEP | EN_DC2_SLEEP;
452
453 ret = menelaus_set_regulator_sleep(1, val);
454 if (ret < 0) {
455 pr_err("Could not set regulators to sleep on menelaus: %u\n",
456 ret);
457 return ret;
458 }
459 return 0;
460}
461
462static int n8x0_auto_voltage_scale(void)
463{
464 int ret;
465
466 ret = menelaus_set_vcore_hw(1400, 1050);
467 if (ret < 0) {
468 pr_err("Could not set VCORE voltage on menelaus: %u\n", ret);
469 return ret;
470 }
471 return 0;
472}
473
474static int n8x0_menelaus_late_init(struct device *dev)
475{
476 int ret;
477
478 ret = n8x0_auto_voltage_scale();
479 if (ret < 0)
480 return ret;
481 ret = n8x0_auto_sleep_regulators();
482 if (ret < 0)
483 return ret;
484 return 0;
485}
486
487#else
488static int n8x0_menelaus_late_init(struct device *dev)
489{
490 return 0;
491}
492#endif
493
494struct menelaus_platform_data n8x0_menelaus_platform_data = {
495 .late_init = n8x0_menelaus_late_init,
496};
497
498static struct gpiod_lookup_table nokia810_asoc_gpio_table = {
499 .dev_id = "soc-audio",
500 .table = {
501 GPIO_LOOKUP("gpio-0-15", 10, "headset", GPIO_ACTIVE_HIGH),
502 GPIO_LOOKUP("gpio-80-111", 21, "speaker", GPIO_ACTIVE_HIGH),
503 { }
504 },
505};
506
507static int __init n8x0_late_initcall(void)
508{
509 if (!board_caps)
510 return -ENODEV;
511
512 n8x0_mmc_init();
513 n8x0_usb_init();
514 gpiod_add_lookup_table(&nokia810_asoc_gpio_table);
515
516 return 0;
517}
518omap_late_initcall(n8x0_late_initcall);
519
520/*
521 * Legacy init pdata init for n8x0. Note that we want to follow the
522 * I2C bus numbering starting at 0 for device tree like other omaps.
523 */
524void * __init n8x0_legacy_init(void)
525{
526 board_check_revision();
527 spi_register_board_info(n800_spi_board_info,
528 ARRAY_SIZE(n800_spi_board_info));
529 return &mmc1_data;
530}
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}