ARM: rockchip: rk3228: implement function rk3228_restart
[firefly-linux-kernel-4.4.55.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/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 #include <linux/usb/nop-usb-xceiv.h>
37
38 #include <linux/regulator/machine.h>
39 #include <linux/i2c/twl.h>
40
41 #include <asm/mach-types.h>
42 #include <asm/mach/arch.h>
43 #include <asm/mach/map.h>
44 #include <asm/mach/flash.h>
45
46 #include <video/omapdss.h>
47 #include <video/omap-panel-data.h>
48 #include <linux/platform_data/mtd-nand-omap2.h>
49
50 #include "common.h"
51 #include "omap_device.h"
52 #include "gpmc.h"
53 #include "soc.h"
54 #include "mux.h"
55 #include "hsmmc.h"
56 #include "pm.h"
57 #include "board-flash.h"
58 #include "common-board-devices.h"
59
60 #define NAND_CS 0
61
62 static struct pwm_lookup pwm_lookup[] = {
63         /* LEDB -> PMU_STAT */
64         PWM_LOOKUP("twl-pwmled", 1, "leds_pwm", "beagleboard::pmu_stat"),
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 tfp410_platform_data dvi_panel = {
229         .i2c_bus_num = 3,
230         .power_down_gpio = -1,
231 };
232
233 static struct omap_dss_device beagle_dvi_device = {
234         .type = OMAP_DISPLAY_TYPE_DPI,
235         .name = "dvi",
236         .driver_name = "tfp410",
237         .data = &dvi_panel,
238         .phy.dpi.data_lines = 24,
239 };
240
241 static struct omap_dss_device beagle_tv_device = {
242         .name = "tv",
243         .driver_name = "venc",
244         .type = OMAP_DISPLAY_TYPE_VENC,
245         .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
246 };
247
248 static struct omap_dss_device *beagle_dss_devices[] = {
249         &beagle_dvi_device,
250         &beagle_tv_device,
251 };
252
253 static struct omap_dss_board_info beagle_dss_data = {
254         .num_devices = ARRAY_SIZE(beagle_dss_devices),
255         .devices = beagle_dss_devices,
256         .default_device = &beagle_dvi_device,
257 };
258
259 #include "sdram-micron-mt46h32m32lf-6.h"
260
261 static struct omap2_hsmmc_info mmc[] = {
262         {
263                 .mmc            = 1,
264                 .caps           = MMC_CAP_4_BIT_DATA,
265                 .gpio_wp        = -EINVAL,
266                 .deferred       = true,
267         },
268         {}      /* Terminator */
269 };
270
271 static struct regulator_consumer_supply beagle_vmmc1_supply[] = {
272         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
273 };
274
275 static struct regulator_consumer_supply beagle_vsim_supply[] = {
276         REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
277 };
278
279 static struct gpio_led gpio_leds[];
280
281 /* PHY's VCC regulator might be added later, so flag that we need it */
282 static struct nop_usb_xceiv_platform_data hsusb2_phy_data = {
283         .needs_vcc = true,
284 };
285
286 static struct usbhs_phy_data phy_data[] = {
287         {
288                 .port = 2,
289                 .reset_gpio = 147,
290                 .vcc_gpio = -1,         /* updated in beagle_twl_gpio_setup */
291                 .vcc_polarity = 1,      /* updated in beagle_twl_gpio_setup */
292                 .platform_data = &hsusb2_phy_data,
293         },
294 };
295
296 static int beagle_twl_gpio_setup(struct device *dev,
297                 unsigned gpio, unsigned ngpio)
298 {
299         int r;
300
301         mmc[0].gpio_wp = beagle_config.mmc1_gpio_wp;
302         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
303         mmc[0].gpio_cd = gpio + 0;
304         omap_hsmmc_late_init(mmc);
305
306         /*
307          * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
308          * high / others active low)
309          * DVI reset GPIO is different between beagle revisions
310          */
311         /* Valid for all -xM revisions */
312         if (cpu_is_omap3630()) {
313                 /*
314                  * gpio + 1 on Xm controls the TFP410's enable line (active low)
315                  * gpio + 2 control varies depending on the board rev as below:
316                  * P7/P8 revisions(prototype): Camera EN
317                  * A2+ revisions (production): LDO (DVI, serial, led blocks)
318                  */
319                 r = gpio_request_one(gpio + 1, GPIOF_OUT_INIT_LOW,
320                                      "nDVI_PWR_EN");
321                 if (r)
322                         pr_err("%s: unable to configure nDVI_PWR_EN\n",
323                                 __func__);
324
325                 beagle_config.dvi_pd_gpio = gpio + 2;
326
327         } else {
328                 /*
329                  * REVISIT: need ehci-omap hooks for external VBUS
330                  * power switch and overcurrent detect
331                  */
332                 if (gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC"))
333                         pr_err("%s: unable to configure EHCI_nOC\n", __func__);
334         }
335         dvi_panel.power_down_gpio = beagle_config.dvi_pd_gpio;
336
337         /* TWL4030_GPIO_MAX i.e. LED_GPO controls HS USB Port 2 power */
338         phy_data[0].vcc_gpio = gpio + TWL4030_GPIO_MAX;
339         phy_data[0].vcc_polarity = beagle_config.usb_pwr_level;
340
341         usbhs_init_phys(phy_data, ARRAY_SIZE(phy_data));
342         return 0;
343 }
344
345 static struct twl4030_gpio_platform_data beagle_gpio_data = {
346         .use_leds       = true,
347         .pullups        = BIT(1),
348         .pulldowns      = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
349                                 | BIT(15) | BIT(16) | BIT(17),
350         .setup          = beagle_twl_gpio_setup,
351 };
352
353 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
354 static struct regulator_init_data beagle_vmmc1 = {
355         .constraints = {
356                 .min_uV                 = 1850000,
357                 .max_uV                 = 3150000,
358                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
359                                         | REGULATOR_MODE_STANDBY,
360                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
361                                         | REGULATOR_CHANGE_MODE
362                                         | REGULATOR_CHANGE_STATUS,
363         },
364         .num_consumer_supplies  = ARRAY_SIZE(beagle_vmmc1_supply),
365         .consumer_supplies      = beagle_vmmc1_supply,
366 };
367
368 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
369 static struct regulator_init_data beagle_vsim = {
370         .constraints = {
371                 .min_uV                 = 1800000,
372                 .max_uV                 = 3000000,
373                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
374                                         | REGULATOR_MODE_STANDBY,
375                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
376                                         | REGULATOR_CHANGE_MODE
377                                         | REGULATOR_CHANGE_STATUS,
378         },
379         .num_consumer_supplies  = ARRAY_SIZE(beagle_vsim_supply),
380         .consumer_supplies      = beagle_vsim_supply,
381 };
382
383 static struct twl4030_platform_data beagle_twldata = {
384         /* platform_data for children goes here */
385         .gpio           = &beagle_gpio_data,
386         .vmmc1          = &beagle_vmmc1,
387         .vsim           = &beagle_vsim,
388 };
389
390 static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
391        {
392                I2C_BOARD_INFO("eeprom", 0x50),
393        },
394 };
395
396 static int __init omap3_beagle_i2c_init(void)
397 {
398         omap3_pmic_get_config(&beagle_twldata,
399                         TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_MADC |
400                         TWL_COMMON_PDATA_AUDIO,
401                         TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
402
403         beagle_twldata.vpll2->constraints.name = "VDVI";
404
405         omap3_pmic_init("twl4030", &beagle_twldata);
406         /* Bus 3 is attached to the DVI port where devices like the pico DLP
407          * projector don't work reliably with 400kHz */
408         omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
409         return 0;
410 }
411
412 static struct gpio_led gpio_leds[] = {
413         {
414                 .name                   = "beagleboard::usr0",
415                 .default_trigger        = "heartbeat",
416                 .gpio                   = 150,
417         },
418         {
419                 .name                   = "beagleboard::usr1",
420                 .default_trigger        = "mmc0",
421                 .gpio                   = 149,
422         },
423 };
424
425 static struct gpio_led_platform_data gpio_led_info = {
426         .leds           = gpio_leds,
427         .num_leds       = ARRAY_SIZE(gpio_leds),
428 };
429
430 static struct platform_device leds_gpio = {
431         .name   = "leds-gpio",
432         .id     = -1,
433         .dev    = {
434                 .platform_data  = &gpio_led_info,
435         },
436 };
437
438 static struct gpio_keys_button gpio_buttons[] = {
439         {
440                 .code                   = BTN_EXTRA,
441                 /* Dynamically assigned depending on board */
442                 .gpio                   = -EINVAL,
443                 .desc                   = "user",
444                 .wakeup                 = 1,
445         },
446 };
447
448 static struct gpio_keys_platform_data gpio_key_info = {
449         .buttons        = gpio_buttons,
450         .nbuttons       = ARRAY_SIZE(gpio_buttons),
451 };
452
453 static struct platform_device keys_gpio = {
454         .name   = "gpio-keys",
455         .id     = -1,
456         .dev    = {
457                 .platform_data  = &gpio_key_info,
458         },
459 };
460
461 static struct platform_device madc_hwmon = {
462         .name   = "twl4030_madc_hwmon",
463         .id     = -1,
464 };
465
466 static struct platform_device *omap3_beagle_devices[] __initdata = {
467         &leds_gpio,
468         &keys_gpio,
469         &madc_hwmon,
470         &leds_pwm,
471 };
472
473 static struct usbhs_omap_platform_data usbhs_bdata __initdata = {
474         .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
475 };
476
477 #ifdef CONFIG_OMAP_MUX
478 static struct omap_board_mux board_mux[] __initdata = {
479         { .reg_offset = OMAP_MUX_TERMINATOR },
480 };
481 #endif
482
483 static int __init beagle_opp_init(void)
484 {
485         int r = 0;
486
487         if (!machine_is_omap3_beagle())
488                 return 0;
489
490         /* Initialize the omap3 opp table if not already created. */
491         r = omap3_opp_init();
492         if (r < 0 && (r != -EEXIST)) {
493                 pr_err("%s: opp default init failed\n", __func__);
494                 return r;
495         }
496
497         /* Custom OPP enabled for all xM versions */
498         if (cpu_is_omap3630()) {
499                 struct device *mpu_dev, *iva_dev;
500
501                 mpu_dev = get_cpu_device(0);
502                 iva_dev = omap_device_get_by_hwmod_name("iva");
503
504                 if (IS_ERR(mpu_dev) || IS_ERR(iva_dev)) {
505                         pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
506                                 __func__, mpu_dev, iva_dev);
507                         return -ENODEV;
508                 }
509                 /* Enable MPU 1GHz and lower opps */
510                 r = opp_enable(mpu_dev, 800000000);
511                 /* TODO: MPU 1GHz needs SR and ABB */
512
513                 /* Enable IVA 800MHz and lower opps */
514                 r |= opp_enable(iva_dev, 660000000);
515                 /* TODO: DSP 800MHz needs SR and ABB */
516                 if (r) {
517                         pr_err("%s: failed to enable higher opp %d\n",
518                                 __func__, r);
519                         /*
520                          * Cleanup - disable the higher freqs - we dont care
521                          * about the results
522                          */
523                         opp_disable(mpu_dev, 800000000);
524                         opp_disable(iva_dev, 660000000);
525                 }
526         }
527         return 0;
528 }
529 omap_device_initcall(beagle_opp_init);
530
531 static void __init omap3_beagle_init(void)
532 {
533         omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
534         omap3_beagle_init_rev();
535
536         if (gpio_is_valid(beagle_config.mmc1_gpio_wp))
537                 omap_mux_init_gpio(beagle_config.mmc1_gpio_wp, OMAP_PIN_INPUT);
538         mmc[0].caps = beagle_config.mmc_caps;
539         omap_hsmmc_init(mmc);
540
541         omap3_beagle_i2c_init();
542
543         gpio_buttons[0].gpio = beagle_config.usr_button_gpio;
544
545         platform_add_devices(omap3_beagle_devices,
546                         ARRAY_SIZE(omap3_beagle_devices));
547         if (gpio_is_valid(beagle_config.dvi_pd_gpio))
548                 omap_mux_init_gpio(beagle_config.dvi_pd_gpio, OMAP_PIN_OUTPUT);
549         omap_display_init(&beagle_dss_data);
550         omap_serial_init();
551         omap_sdrc_init(mt46h32m32lf6_sdrc_params,
552                                   mt46h32m32lf6_sdrc_params);
553
554         usb_bind_phy("musb-hdrc.0.auto", 0, "twl4030_usb");
555         usb_musb_init(NULL);
556
557         usbhs_init(&usbhs_bdata);
558
559         board_nand_init(omap3beagle_nand_partitions,
560                         ARRAY_SIZE(omap3beagle_nand_partitions), NAND_CS,
561                         NAND_BUSWIDTH_16, NULL);
562         omap_twl4030_audio_init("omap3beagle", NULL);
563
564         /* Ensure msecure is mux'd to be able to set the RTC. */
565         omap_mux_init_signal("sys_drm_msecure", OMAP_PIN_OFF_OUTPUT_HIGH);
566
567         /* Ensure SDRC pins are mux'd for self-refresh */
568         omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
569         omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
570
571         pwm_add_table(pwm_lookup, ARRAY_SIZE(pwm_lookup));
572 }
573
574 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
575         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
576         .atag_offset    = 0x100,
577         .reserve        = omap_reserve,
578         .map_io         = omap3_map_io,
579         .init_early     = omap3_init_early,
580         .init_irq       = omap3_init_irq,
581         .handle_irq     = omap3_intc_handle_irq,
582         .init_machine   = omap3_beagle_init,
583         .init_late      = omap3_init_late,
584         .init_time      = omap3_secure_sync32k_timer_init,
585         .restart        = omap3xxx_restart,
586 MACHINE_END