Merge branch 'next' into for-linus
[sfrench/cifs-2.6.git] / arch / arm / mach-omap2 / board-omap3beagle.c
1 /*
2  * linux/arch/arm/mach-omap2/board-omap3beagle.c
3  *
4  * Copyright (C) 2008 Texas Instruments
5  *
6  * Modified from mach-omap2/board-3430sdp.c
7  *
8  * Initial code: Syed Mohammed Khasim
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License version 2 as
12  * published by the Free Software Foundation.
13  */
14
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/platform_device.h>
18 #include <linux/delay.h>
19 #include <linux/err.h>
20 #include <linux/clk.h>
21 #include <linux/io.h>
22 #include <linux/leds.h>
23 #include <linux/pwm.h>
24 #include <linux/leds_pwm.h>
25 #include <linux/gpio.h>
26 #include <linux/input.h>
27 #include <linux/gpio_keys.h>
28 #include <linux/pm_opp.h>
29 #include <linux/cpu.h>
30
31 #include <linux/mtd/mtd.h>
32 #include <linux/mtd/partitions.h>
33 #include <linux/mtd/nand.h>
34 #include <linux/mmc/host.h>
35 #include <linux/usb/phy.h>
36
37 #include <linux/regulator/machine.h>
38 #include <linux/i2c/twl.h>
39
40 #include <asm/mach-types.h>
41 #include <asm/mach/arch.h>
42 #include <asm/mach/map.h>
43 #include <asm/mach/flash.h>
44
45 #include <video/omapdss.h>
46 #include <video/omap-panel-data.h>
47 #include <linux/platform_data/mtd-nand-omap2.h>
48
49 #include "common.h"
50 #include "omap_device.h"
51 #include "gpmc.h"
52 #include "soc.h"
53 #include "mux.h"
54 #include "hsmmc.h"
55 #include "pm.h"
56 #include "board-flash.h"
57 #include "common-board-devices.h"
58
59 #define NAND_CS 0
60
61 static struct pwm_lookup pwm_lookup[] = {
62         /* LEDB -> PMU_STAT */
63         PWM_LOOKUP("twl-pwmled", 1, "leds_pwm", "beagleboard::pmu_stat",
64                    7812500, PWM_POLARITY_NORMAL),
65 };
66
67 static struct led_pwm pwm_leds[] = {
68         {
69                 .name           = "beagleboard::pmu_stat",
70                 .max_brightness = 127,
71                 .pwm_period_ns  = 7812500,
72         },
73 };
74
75 static struct led_pwm_platform_data pwm_data = {
76         .num_leds       = ARRAY_SIZE(pwm_leds),
77         .leds           = pwm_leds,
78 };
79
80 static struct platform_device leds_pwm = {
81         .name   = "leds_pwm",
82         .id     = -1,
83         .dev    = {
84                 .platform_data = &pwm_data,
85         },
86 };
87
88 /*
89  * OMAP3 Beagle revision
90  * Run time detection of Beagle revision is done by reading GPIO.
91  * GPIO ID -
92  *      AXBX    = GPIO173, GPIO172, GPIO171: 1 1 1
93  *      C1_3    = GPIO173, GPIO172, GPIO171: 1 1 0
94  *      C4      = GPIO173, GPIO172, GPIO171: 1 0 1
95  *      XMA/XMB = GPIO173, GPIO172, GPIO171: 0 0 0
96  *      XMC = GPIO173, GPIO172, GPIO171: 0 1 0
97  */
98 enum {
99         OMAP3BEAGLE_BOARD_UNKN = 0,
100         OMAP3BEAGLE_BOARD_AXBX,
101         OMAP3BEAGLE_BOARD_C1_3,
102         OMAP3BEAGLE_BOARD_C4,
103         OMAP3BEAGLE_BOARD_XM,
104         OMAP3BEAGLE_BOARD_XMC,
105 };
106
107 static u8 omap3_beagle_version;
108
109 /*
110  * Board-specific configuration
111  * Defaults to BeagleBoard-xMC
112  */
113 static struct {
114         int mmc1_gpio_wp;
115         bool usb_pwr_level;     /* 0 - Active Low, 1 - Active High */
116         int dvi_pd_gpio;
117         int usr_button_gpio;
118         int mmc_caps;
119 } beagle_config = {
120         .mmc1_gpio_wp = -EINVAL,
121         .usb_pwr_level = 0,
122         .dvi_pd_gpio = -EINVAL,
123         .usr_button_gpio = 4,
124         .mmc_caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
125 };
126
127 static struct gpio omap3_beagle_rev_gpios[] __initdata = {
128         { 171, GPIOF_IN, "rev_id_0"    },
129         { 172, GPIOF_IN, "rev_id_1" },
130         { 173, GPIOF_IN, "rev_id_2"    },
131 };
132
133 static void __init omap3_beagle_init_rev(void)
134 {
135         int ret;
136         u16 beagle_rev = 0;
137
138         omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP);
139         omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP);
140         omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP);
141
142         ret = gpio_request_array(omap3_beagle_rev_gpios,
143                                  ARRAY_SIZE(omap3_beagle_rev_gpios));
144         if (ret < 0) {
145                 printk(KERN_ERR "Unable to get revision detection GPIO pins\n");
146                 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
147                 return;
148         }
149
150         beagle_rev = gpio_get_value(171) | (gpio_get_value(172) << 1)
151                         | (gpio_get_value(173) << 2);
152
153         gpio_free_array(omap3_beagle_rev_gpios,
154                         ARRAY_SIZE(omap3_beagle_rev_gpios));
155
156         switch (beagle_rev) {
157         case 7:
158                 printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n");
159                 omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX;
160                 beagle_config.mmc1_gpio_wp = 29;
161                 beagle_config.dvi_pd_gpio = 170;
162                 beagle_config.usr_button_gpio = 7;
163                 break;
164         case 6:
165                 printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n");
166                 omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3;
167                 beagle_config.mmc1_gpio_wp = 23;
168                 beagle_config.dvi_pd_gpio = 170;
169                 beagle_config.usr_button_gpio = 7;
170                 break;
171         case 5:
172                 printk(KERN_INFO "OMAP3 Beagle Rev: C4\n");
173                 omap3_beagle_version = OMAP3BEAGLE_BOARD_C4;
174                 beagle_config.mmc1_gpio_wp = 23;
175                 beagle_config.dvi_pd_gpio = 170;
176                 beagle_config.usr_button_gpio = 7;
177                 break;
178         case 0:
179                 printk(KERN_INFO "OMAP3 Beagle Rev: xM Ax/Bx\n");
180                 omap3_beagle_version = OMAP3BEAGLE_BOARD_XM;
181                 beagle_config.usb_pwr_level = 1;
182                 beagle_config.mmc_caps &= ~MMC_CAP_8_BIT_DATA;
183                 break;
184         case 2:
185                 printk(KERN_INFO "OMAP3 Beagle Rev: xM C\n");
186                 omap3_beagle_version = OMAP3BEAGLE_BOARD_XMC;
187                 beagle_config.mmc_caps &= ~MMC_CAP_8_BIT_DATA;
188                 break;
189         default:
190                 printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev);
191                 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
192         }
193 }
194
195 static struct mtd_partition omap3beagle_nand_partitions[] = {
196         /* All the partition sizes are listed in terms of NAND block size */
197         {
198                 .name           = "X-Loader",
199                 .offset         = 0,
200                 .size           = 4 * NAND_BLOCK_SIZE,
201                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
202         },
203         {
204                 .name           = "U-Boot",
205                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
206                 .size           = 15 * NAND_BLOCK_SIZE,
207                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
208         },
209         {
210                 .name           = "U-Boot Env",
211                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
212                 .size           = 1 * NAND_BLOCK_SIZE,
213         },
214         {
215                 .name           = "Kernel",
216                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
217                 .size           = 32 * NAND_BLOCK_SIZE,
218         },
219         {
220                 .name           = "File System",
221                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
222                 .size           = MTDPART_SIZ_FULL,
223         },
224 };
225
226 /* DSS */
227
228 static struct connector_dvi_platform_data beagle_dvi_connector_pdata = {
229         .name                   = "dvi",
230         .source                 = "tfp410.0",
231         .i2c_bus_num            = 3,
232 };
233
234 static struct platform_device beagle_dvi_connector_device = {
235         .name                   = "connector-dvi",
236         .id                     = 0,
237         .dev.platform_data      = &beagle_dvi_connector_pdata,
238 };
239
240 static struct encoder_tfp410_platform_data beagle_tfp410_pdata = {
241         .name                   = "tfp410.0",
242         .source                 = "dpi.0",
243         .data_lines             = 24,
244         .power_down_gpio        = -1,
245 };
246
247 static struct platform_device beagle_tfp410_device = {
248         .name                   = "tfp410",
249         .id                     = 0,
250         .dev.platform_data      = &beagle_tfp410_pdata,
251 };
252
253 static struct connector_atv_platform_data beagle_tv_pdata = {
254         .name = "tv",
255         .source = "venc.0",
256         .connector_type = OMAP_DSS_VENC_TYPE_SVIDEO,
257         .invert_polarity = false,
258 };
259
260 static struct platform_device beagle_tv_connector_device = {
261         .name                   = "connector-analog-tv",
262         .id                     = 0,
263         .dev.platform_data      = &beagle_tv_pdata,
264 };
265
266 static struct omap_dss_board_info beagle_dss_data = {
267         .default_display_name = "dvi",
268 };
269
270 #include "sdram-micron-mt46h32m32lf-6.h"
271
272 static struct omap2_hsmmc_info mmc[] = {
273         {
274                 .mmc            = 1,
275                 .caps           = MMC_CAP_4_BIT_DATA,
276                 .gpio_wp        = -EINVAL,
277                 .deferred       = true,
278         },
279         {}      /* Terminator */
280 };
281
282 static struct regulator_consumer_supply beagle_vmmc1_supply[] = {
283         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
284 };
285
286 static struct regulator_consumer_supply beagle_vsim_supply[] = {
287         REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
288 };
289
290 static struct gpio_led gpio_leds[];
291
292 static struct usbhs_phy_data phy_data[] = {
293         {
294                 .port = 2,
295                 .reset_gpio = 147,
296                 .vcc_gpio = -1,         /* updated in beagle_twl_gpio_setup */
297                 .vcc_polarity = 1,      /* updated in beagle_twl_gpio_setup */
298         },
299 };
300
301 static int beagle_twl_gpio_setup(struct device *dev,
302                 unsigned gpio, unsigned ngpio)
303 {
304         int r;
305
306         mmc[0].gpio_wp = beagle_config.mmc1_gpio_wp;
307         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
308         mmc[0].gpio_cd = gpio + 0;
309         omap_hsmmc_late_init(mmc);
310
311         /*
312          * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
313          * high / others active low)
314          * DVI reset GPIO is different between beagle revisions
315          */
316         /* Valid for all -xM revisions */
317         if (cpu_is_omap3630()) {
318                 /*
319                  * gpio + 1 on Xm controls the TFP410's enable line (active low)
320                  * gpio + 2 control varies depending on the board rev as below:
321                  * P7/P8 revisions(prototype): Camera EN
322                  * A2+ revisions (production): LDO (DVI, serial, led blocks)
323                  */
324                 r = gpio_request_one(gpio + 1, GPIOF_OUT_INIT_LOW,
325                                      "nDVI_PWR_EN");
326                 if (r)
327                         pr_err("%s: unable to configure nDVI_PWR_EN\n",
328                                 __func__);
329
330                 beagle_config.dvi_pd_gpio = gpio + 2;
331
332         } else {
333                 /*
334                  * REVISIT: need ehci-omap hooks for external VBUS
335                  * power switch and overcurrent detect
336                  */
337                 if (gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC"))
338                         pr_err("%s: unable to configure EHCI_nOC\n", __func__);
339         }
340         beagle_tfp410_pdata.power_down_gpio = beagle_config.dvi_pd_gpio;
341
342         platform_device_register(&beagle_tfp410_device);
343         platform_device_register(&beagle_dvi_connector_device);
344         platform_device_register(&beagle_tv_connector_device);
345
346         /* TWL4030_GPIO_MAX i.e. LED_GPO controls HS USB Port 2 power */
347         phy_data[0].vcc_gpio = gpio + TWL4030_GPIO_MAX;
348         phy_data[0].vcc_polarity = beagle_config.usb_pwr_level;
349
350         usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data));
351         return 0;
352 }
353
354 static struct twl4030_gpio_platform_data beagle_gpio_data = {
355         .use_leds       = true,
356         .pullups        = BIT(1),
357         .pulldowns      = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
358                                 | BIT(15) | BIT(16) | BIT(17),
359         .setup          = beagle_twl_gpio_setup,
360 };
361
362 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
363 static struct regulator_init_data beagle_vmmc1 = {
364         .constraints = {
365                 .min_uV                 = 1850000,
366                 .max_uV                 = 3150000,
367                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
368                                         | REGULATOR_MODE_STANDBY,
369                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
370                                         | REGULATOR_CHANGE_MODE
371                                         | REGULATOR_CHANGE_STATUS,
372         },
373         .num_consumer_supplies  = ARRAY_SIZE(beagle_vmmc1_supply),
374         .consumer_supplies      = beagle_vmmc1_supply,
375 };
376
377 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
378 static struct regulator_init_data beagle_vsim = {
379         .constraints = {
380                 .min_uV                 = 1800000,
381                 .max_uV                 = 3000000,
382                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
383                                         | REGULATOR_MODE_STANDBY,
384                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
385                                         | REGULATOR_CHANGE_MODE
386                                         | REGULATOR_CHANGE_STATUS,
387         },
388         .num_consumer_supplies  = ARRAY_SIZE(beagle_vsim_supply),
389         .consumer_supplies      = beagle_vsim_supply,
390 };
391
392 static struct twl4030_platform_data beagle_twldata = {
393         /* platform_data for children goes here */
394         .gpio           = &beagle_gpio_data,
395         .vmmc1          = &beagle_vmmc1,
396         .vsim           = &beagle_vsim,
397 };
398
399 static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
400        {
401                I2C_BOARD_INFO("eeprom", 0x50),
402        },
403 };
404
405 static int __init omap3_beagle_i2c_init(void)
406 {
407         omap3_pmic_get_config(&beagle_twldata,
408                         TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_MADC |
409                         TWL_COMMON_PDATA_AUDIO,
410                         TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
411
412         beagle_twldata.vpll2->constraints.name = "VDVI";
413
414         omap3_pmic_init("twl4030", &beagle_twldata);
415         /* Bus 3 is attached to the DVI port where devices like the pico DLP
416          * projector don't work reliably with 400kHz */
417         omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
418         return 0;
419 }
420
421 static struct gpio_led gpio_leds[] = {
422         {
423                 .name                   = "beagleboard::usr0",
424                 .default_trigger        = "heartbeat",
425                 .gpio                   = 150,
426         },
427         {
428                 .name                   = "beagleboard::usr1",
429                 .default_trigger        = "mmc0",
430                 .gpio                   = 149,
431         },
432 };
433
434 static struct gpio_led_platform_data gpio_led_info = {
435         .leds           = gpio_leds,
436         .num_leds       = ARRAY_SIZE(gpio_leds),
437 };
438
439 static struct platform_device leds_gpio = {
440         .name   = "leds-gpio",
441         .id     = -1,
442         .dev    = {
443                 .platform_data  = &gpio_led_info,
444         },
445 };
446
447 static struct gpio_keys_button gpio_buttons[] = {
448         {
449                 .code                   = BTN_EXTRA,
450                 /* Dynamically assigned depending on board */
451                 .gpio                   = -EINVAL,
452                 .desc                   = "user",
453                 .wakeup                 = 1,
454         },
455 };
456
457 static struct gpio_keys_platform_data gpio_key_info = {
458         .buttons        = gpio_buttons,
459         .nbuttons       = ARRAY_SIZE(gpio_buttons),
460 };
461
462 static struct platform_device keys_gpio = {
463         .name   = "gpio-keys",
464         .id     = -1,
465         .dev    = {
466                 .platform_data  = &gpio_key_info,
467         },
468 };
469
470 static struct platform_device madc_hwmon = {
471         .name   = "twl4030_madc_hwmon",
472         .id     = -1,
473 };
474
475 static struct platform_device *omap3_beagle_devices[] __initdata = {
476         &leds_gpio,
477         &keys_gpio,
478         &madc_hwmon,
479         &leds_pwm,
480 };
481
482 static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
483         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
484 };
485
486 #ifdef CONFIG_OMAP_MUX
487 static struct omap_board_mux board_mux[] __initdata = {
488         { .reg_offset = OMAP_MUX_TERMINATOR },
489 };
490 #endif
491
492 static int __init beagle_opp_init(void)
493 {
494         int r = 0;
495
496         if (!machine_is_omap3_beagle())
497                 return 0;
498
499         /* Initialize the omap3 opp table if not already created. */
500         r = omap3_opp_init();
501         if (r < 0 && (r != -EEXIST)) {
502                 pr_err("%s: opp default init failed\n", __func__);
503                 return r;
504         }
505
506         /* Custom OPP enabled for all xM versions */
507         if (cpu_is_omap3630()) {
508                 struct device *mpu_dev, *iva_dev;
509
510                 mpu_dev = get_cpu_device(0);
511                 iva_dev = omap_device_get_by_hwmod_name("iva");
512
513                 if (!mpu_dev || IS_ERR(iva_dev)) {
514                         pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
515                                 __func__, mpu_dev, iva_dev);
516                         return -ENODEV;
517                 }
518                 /* Enable MPU 1GHz and lower opps */
519                 r = dev_pm_opp_enable(mpu_dev, 800000000);
520                 /* TODO: MPU 1GHz needs SR and ABB */
521
522                 /* Enable IVA 800MHz and lower opps */
523                 r |= dev_pm_opp_enable(iva_dev, 660000000);
524                 /* TODO: DSP 800MHz needs SR and ABB */
525                 if (r) {
526                         pr_err("%s: failed to enable higher opp %d\n",
527                                 __func__, r);
528                         /*
529                          * Cleanup - disable the higher freqs - we dont care
530                          * about the results
531                          */
532                         dev_pm_opp_disable(mpu_dev, 800000000);
533                         dev_pm_opp_disable(iva_dev, 660000000);
534                 }
535         }
536         return 0;
537 }
538 omap_device_initcall(beagle_opp_init);
539
540 static void __init omap3_beagle_init(void)
541 {
542         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
543         omap3_beagle_init_rev();
544
545         if (gpio_is_valid(beagle_config.mmc1_gpio_wp))
546                 omap_mux_init_gpio(beagle_config.mmc1_gpio_wp, OMAP_PIN_INPUT);
547         mmc[0].caps = beagle_config.mmc_caps;
548         omap_hsmmc_init(mmc);
549
550         omap3_beagle_i2c_init();
551
552         gpio_buttons[0].gpio = beagle_config.usr_button_gpio;
553
554         platform_add_devices(omap3_beagle_devices,
555                         ARRAY_SIZE(omap3_beagle_devices));
556         if (gpio_is_valid(beagle_config.dvi_pd_gpio))
557                 omap_mux_init_gpio(beagle_config.dvi_pd_gpio, OMAP_PIN_OUTPUT);
558         omap_display_init(&beagle_dss_data);
559
560         omap_serial_init();
561         omap_sdrc_init(mt46h32m32lf6_sdrc_params,
562                                   mt46h32m32lf6_sdrc_params);
563
564         usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
565         usb_musb_init(NULL);
566
567         usbhs_init(&usbhs_bdata);
568
569         board_nand_init(omap3beagle_nand_partitions,
570                         ARRAY_SIZE(omap3beagle_nand_partitions), NAND_CS,
571                         NAND_BUSWIDTH_16, NULL);
572         omap_twl4030_audio_init("omap3beagle", NULL);
573
574         /* Ensure msecure is mux'd to be able to set the RTC. */
575         omap_mux_init_signal("sys_drm_msecure", OMAP_PIN_OFF_OUTPUT_HIGH);
576
577         /* Ensure SDRC pins are mux'd for self-refresh */
578         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
579         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
580
581         pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup));
582 }
583
584 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
585         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
586         .atag_offset    = 0x100,
587         .reserve        = omap_reserve,
588         .map_io         = omap3_map_io,
589         .init_early     = omap3_init_early,
590         .init_irq       = omap3_init_irq,
591         .handle_irq     = omap3_intc_handle_irq,
592         .init_machine   = omap3_beagle_init,
593         .init_late      = omap3_init_late,
594         .init_time      = omap3_secure_sync32k_timer_init,
595         .restart        = omap3xxx_restart,
596 MACHINE_END