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
omap3_beagle_init_rev(void)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
beagle_twl_gpio_setup(struct device * dev,unsigned gpio,unsigned ngpio)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
omap3_beagle_i2c_init(void)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
beagle_opp_init(void)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
omap3_beagle_init(void)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 .init_machine = omap3_beagle_init,
592 .init_late = omap3_init_late,
593 .init_time = omap3_secure_sync32k_timer_init,
594 .restart = omap3xxx_restart,
595 MACHINE_END
596