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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/gpio.h>
24#include <linux/input.h>
25#include <linux/gpio_keys.h>
26#include <linux/opp.h>
27
28#include <linux/mtd/mtd.h>
29#include <linux/mtd/partitions.h>
30#include <linux/mtd/nand.h>
31#include <linux/mmc/host.h>
32
33#include <linux/regulator/machine.h>
34#include <linux/i2c/twl.h>
35
36#include <mach/hardware.h>
37#include <asm/mach-types.h>
38#include <asm/mach/arch.h>
39#include <asm/mach/map.h>
40#include <asm/mach/flash.h>
41
42#include <plat/board.h>
43#include "common.h"
44#include <video/omapdss.h>
45#include <video/omap-panel-tfp410.h>
46#include <plat/gpmc.h>
47#include <plat/nand.h>
48#include <plat/usb.h>
49#include <plat/omap_device.h>
50
51#include "mux.h"
52#include "hsmmc.h"
53#include "pm.h"
54#include "common-board-devices.h"
55
56/*
57 * OMAP3 Beagle revision
58 * Run time detection of Beagle revision is done by reading GPIO.
59 * GPIO ID -
60 * AXBX = GPIO173, GPIO172, GPIO171: 1 1 1
61 * C1_3 = GPIO173, GPIO172, GPIO171: 1 1 0
62 * C4 = GPIO173, GPIO172, GPIO171: 1 0 1
63 * XMA/XMB = GPIO173, GPIO172, GPIO171: 0 0 0
64 * XMC = GPIO173, GPIO172, GPIO171: 0 1 0
65 */
66enum {
67 OMAP3BEAGLE_BOARD_UNKN = 0,
68 OMAP3BEAGLE_BOARD_AXBX,
69 OMAP3BEAGLE_BOARD_C1_3,
70 OMAP3BEAGLE_BOARD_C4,
71 OMAP3BEAGLE_BOARD_XM,
72 OMAP3BEAGLE_BOARD_XMC,
73};
74
75static u8 omap3_beagle_version;
76
77/*
78 * Board-specific configuration
79 * Defaults to BeagleBoard-xMC
80 */
81static struct {
82 int mmc1_gpio_wp;
83 int usb_pwr_level;
84 int dvi_pd_gpio;
85 int usr_button_gpio;
86 int mmc_caps;
87} beagle_config = {
88 .mmc1_gpio_wp = -EINVAL,
89 .usb_pwr_level = GPIOF_OUT_INIT_LOW,
90 .dvi_pd_gpio = -EINVAL,
91 .usr_button_gpio = 4,
92 .mmc_caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
93};
94
95static struct gpio omap3_beagle_rev_gpios[] __initdata = {
96 { 171, GPIOF_IN, "rev_id_0" },
97 { 172, GPIOF_IN, "rev_id_1" },
98 { 173, GPIOF_IN, "rev_id_2" },
99};
100
101static void __init omap3_beagle_init_rev(void)
102{
103 int ret;
104 u16 beagle_rev = 0;
105
106 omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP);
107 omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP);
108 omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP);
109
110 ret = gpio_request_array(omap3_beagle_rev_gpios,
111 ARRAY_SIZE(omap3_beagle_rev_gpios));
112 if (ret < 0) {
113 printk(KERN_ERR "Unable to get revision detection GPIO pins\n");
114 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
115 return;
116 }
117
118 beagle_rev = gpio_get_value(171) | (gpio_get_value(172) << 1)
119 | (gpio_get_value(173) << 2);
120
121 gpio_free_array(omap3_beagle_rev_gpios,
122 ARRAY_SIZE(omap3_beagle_rev_gpios));
123
124 switch (beagle_rev) {
125 case 7:
126 printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n");
127 omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX;
128 beagle_config.mmc1_gpio_wp = 29;
129 beagle_config.dvi_pd_gpio = 170;
130 beagle_config.usr_button_gpio = 7;
131 break;
132 case 6:
133 printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n");
134 omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3;
135 beagle_config.mmc1_gpio_wp = 23;
136 beagle_config.dvi_pd_gpio = 170;
137 beagle_config.usr_button_gpio = 7;
138 break;
139 case 5:
140 printk(KERN_INFO "OMAP3 Beagle Rev: C4\n");
141 omap3_beagle_version = OMAP3BEAGLE_BOARD_C4;
142 beagle_config.mmc1_gpio_wp = 23;
143 beagle_config.dvi_pd_gpio = 170;
144 beagle_config.usr_button_gpio = 7;
145 break;
146 case 0:
147 printk(KERN_INFO "OMAP3 Beagle Rev: xM Ax/Bx\n");
148 omap3_beagle_version = OMAP3BEAGLE_BOARD_XM;
149 beagle_config.usb_pwr_level = GPIOF_OUT_INIT_HIGH;
150 beagle_config.mmc_caps &= ~MMC_CAP_8_BIT_DATA;
151 break;
152 case 2:
153 printk(KERN_INFO "OMAP3 Beagle Rev: xM C\n");
154 omap3_beagle_version = OMAP3BEAGLE_BOARD_XMC;
155 beagle_config.mmc_caps &= ~MMC_CAP_8_BIT_DATA;
156 break;
157 default:
158 printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev);
159 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
160 }
161}
162
163static struct mtd_partition omap3beagle_nand_partitions[] = {
164 /* All the partition sizes are listed in terms of NAND block size */
165 {
166 .name = "X-Loader",
167 .offset = 0,
168 .size = 4 * NAND_BLOCK_SIZE,
169 .mask_flags = MTD_WRITEABLE, /* force read-only */
170 },
171 {
172 .name = "U-Boot",
173 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
174 .size = 15 * NAND_BLOCK_SIZE,
175 .mask_flags = MTD_WRITEABLE, /* force read-only */
176 },
177 {
178 .name = "U-Boot Env",
179 .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
180 .size = 1 * NAND_BLOCK_SIZE,
181 },
182 {
183 .name = "Kernel",
184 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
185 .size = 32 * NAND_BLOCK_SIZE,
186 },
187 {
188 .name = "File System",
189 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
190 .size = MTDPART_SIZ_FULL,
191 },
192};
193
194/* DSS */
195
196static struct tfp410_platform_data dvi_panel = {
197 .i2c_bus_num = 3,
198 .power_down_gpio = -1,
199};
200
201static struct omap_dss_device beagle_dvi_device = {
202 .type = OMAP_DISPLAY_TYPE_DPI,
203 .name = "dvi",
204 .driver_name = "tfp410",
205 .data = &dvi_panel,
206 .phy.dpi.data_lines = 24,
207};
208
209static struct omap_dss_device beagle_tv_device = {
210 .name = "tv",
211 .driver_name = "venc",
212 .type = OMAP_DISPLAY_TYPE_VENC,
213 .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
214};
215
216static struct omap_dss_device *beagle_dss_devices[] = {
217 &beagle_dvi_device,
218 &beagle_tv_device,
219};
220
221static struct omap_dss_board_info beagle_dss_data = {
222 .num_devices = ARRAY_SIZE(beagle_dss_devices),
223 .devices = beagle_dss_devices,
224 .default_device = &beagle_dvi_device,
225};
226
227#include "sdram-micron-mt46h32m32lf-6.h"
228
229static struct omap2_hsmmc_info mmc[] = {
230 {
231 .mmc = 1,
232 .caps = MMC_CAP_4_BIT_DATA,
233 .gpio_wp = -EINVAL,
234 .deferred = true,
235 },
236 {} /* Terminator */
237};
238
239static struct regulator_consumer_supply beagle_vmmc1_supply[] = {
240 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
241};
242
243static struct regulator_consumer_supply beagle_vsim_supply[] = {
244 REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
245};
246
247static struct gpio_led gpio_leds[];
248
249static int beagle_twl_gpio_setup(struct device *dev,
250 unsigned gpio, unsigned ngpio)
251{
252 int r;
253
254 mmc[0].gpio_wp = beagle_config.mmc1_gpio_wp;
255 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
256 mmc[0].gpio_cd = gpio + 0;
257 omap_hsmmc_late_init(mmc);
258
259 /*
260 * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
261 * high / others active low)
262 * DVI reset GPIO is different between beagle revisions
263 */
264 /* Valid for all -xM revisions */
265 if (cpu_is_omap3630()) {
266 /*
267 * gpio + 1 on Xm controls the TFP410's enable line (active low)
268 * gpio + 2 control varies depending on the board rev as below:
269 * P7/P8 revisions(prototype): Camera EN
270 * A2+ revisions (production): LDO (DVI, serial, led blocks)
271 */
272 r = gpio_request_one(gpio + 1, GPIOF_OUT_INIT_LOW,
273 "nDVI_PWR_EN");
274 if (r)
275 pr_err("%s: unable to configure nDVI_PWR_EN\n",
276 __func__);
277
278 beagle_config.dvi_pd_gpio = gpio + 2;
279
280 } else {
281 /*
282 * REVISIT: need ehci-omap hooks for external VBUS
283 * power switch and overcurrent detect
284 */
285 if (gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC"))
286 pr_err("%s: unable to configure EHCI_nOC\n", __func__);
287 }
288 dvi_panel.power_down_gpio = beagle_config.dvi_pd_gpio;
289
290 gpio_request_one(gpio + TWL4030_GPIO_MAX, beagle_config.usb_pwr_level,
291 "nEN_USB_PWR");
292
293 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
294 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
295
296 return 0;
297}
298
299static struct twl4030_gpio_platform_data beagle_gpio_data = {
300 .gpio_base = OMAP_MAX_GPIO_LINES,
301 .irq_base = TWL4030_GPIO_IRQ_BASE,
302 .irq_end = TWL4030_GPIO_IRQ_END,
303 .use_leds = true,
304 .pullups = BIT(1),
305 .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
306 | BIT(15) | BIT(16) | BIT(17),
307 .setup = beagle_twl_gpio_setup,
308};
309
310/* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
311static struct regulator_init_data beagle_vmmc1 = {
312 .constraints = {
313 .min_uV = 1850000,
314 .max_uV = 3150000,
315 .valid_modes_mask = REGULATOR_MODE_NORMAL
316 | REGULATOR_MODE_STANDBY,
317 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
318 | REGULATOR_CHANGE_MODE
319 | REGULATOR_CHANGE_STATUS,
320 },
321 .num_consumer_supplies = ARRAY_SIZE(beagle_vmmc1_supply),
322 .consumer_supplies = beagle_vmmc1_supply,
323};
324
325/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
326static struct regulator_init_data beagle_vsim = {
327 .constraints = {
328 .min_uV = 1800000,
329 .max_uV = 3000000,
330 .valid_modes_mask = REGULATOR_MODE_NORMAL
331 | REGULATOR_MODE_STANDBY,
332 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
333 | REGULATOR_CHANGE_MODE
334 | REGULATOR_CHANGE_STATUS,
335 },
336 .num_consumer_supplies = ARRAY_SIZE(beagle_vsim_supply),
337 .consumer_supplies = beagle_vsim_supply,
338};
339
340static struct twl4030_platform_data beagle_twldata = {
341 /* platform_data for children goes here */
342 .gpio = &beagle_gpio_data,
343 .vmmc1 = &beagle_vmmc1,
344 .vsim = &beagle_vsim,
345};
346
347static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
348 {
349 I2C_BOARD_INFO("eeprom", 0x50),
350 },
351};
352
353static int __init omap3_beagle_i2c_init(void)
354{
355 omap3_pmic_get_config(&beagle_twldata,
356 TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_MADC |
357 TWL_COMMON_PDATA_AUDIO,
358 TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
359
360 beagle_twldata.vpll2->constraints.name = "VDVI";
361
362 omap3_pmic_init("twl4030", &beagle_twldata);
363 /* Bus 3 is attached to the DVI port where devices like the pico DLP
364 * projector don't work reliably with 400kHz */
365 omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
366 return 0;
367}
368
369static struct gpio_led gpio_leds[] = {
370 {
371 .name = "beagleboard::usr0",
372 .default_trigger = "heartbeat",
373 .gpio = 150,
374 },
375 {
376 .name = "beagleboard::usr1",
377 .default_trigger = "mmc0",
378 .gpio = 149,
379 },
380 {
381 .name = "beagleboard::pmu_stat",
382 .gpio = -EINVAL, /* gets replaced */
383 .active_low = true,
384 },
385};
386
387static struct gpio_led_platform_data gpio_led_info = {
388 .leds = gpio_leds,
389 .num_leds = ARRAY_SIZE(gpio_leds),
390};
391
392static struct platform_device leds_gpio = {
393 .name = "leds-gpio",
394 .id = -1,
395 .dev = {
396 .platform_data = &gpio_led_info,
397 },
398};
399
400static struct gpio_keys_button gpio_buttons[] = {
401 {
402 .code = BTN_EXTRA,
403 /* Dynamically assigned depending on board */
404 .gpio = -EINVAL,
405 .desc = "user",
406 .wakeup = 1,
407 },
408};
409
410static struct gpio_keys_platform_data gpio_key_info = {
411 .buttons = gpio_buttons,
412 .nbuttons = ARRAY_SIZE(gpio_buttons),
413};
414
415static struct platform_device keys_gpio = {
416 .name = "gpio-keys",
417 .id = -1,
418 .dev = {
419 .platform_data = &gpio_key_info,
420 },
421};
422
423static struct platform_device madc_hwmon = {
424 .name = "twl4030_madc_hwmon",
425 .id = -1,
426};
427
428static struct platform_device *omap3_beagle_devices[] __initdata = {
429 &leds_gpio,
430 &keys_gpio,
431 &madc_hwmon,
432};
433
434static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
435
436 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
437 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
438 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
439
440 .phy_reset = true,
441 .reset_gpio_port[0] = -EINVAL,
442 .reset_gpio_port[1] = 147,
443 .reset_gpio_port[2] = -EINVAL
444};
445
446#ifdef CONFIG_OMAP_MUX
447static struct omap_board_mux board_mux[] __initdata = {
448 { .reg_offset = OMAP_MUX_TERMINATOR },
449};
450#endif
451
452static void __init beagle_opp_init(void)
453{
454 int r = 0;
455
456 /* Initialize the omap3 opp table */
457 if (omap3_opp_init()) {
458 pr_err("%s: opp default init failed\n", __func__);
459 return;
460 }
461
462 /* Custom OPP enabled for all xM versions */
463 if (cpu_is_omap3630()) {
464 struct device *mpu_dev, *iva_dev;
465
466 mpu_dev = omap_device_get_by_hwmod_name("mpu");
467 iva_dev = omap_device_get_by_hwmod_name("iva");
468
469 if (!mpu_dev || !iva_dev) {
470 pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
471 __func__, mpu_dev, iva_dev);
472 return;
473 }
474 /* Enable MPU 1GHz and lower opps */
475 r = opp_enable(mpu_dev, 800000000);
476 /* TODO: MPU 1GHz needs SR and ABB */
477
478 /* Enable IVA 800MHz and lower opps */
479 r |= opp_enable(iva_dev, 660000000);
480 /* TODO: DSP 800MHz needs SR and ABB */
481 if (r) {
482 pr_err("%s: failed to enable higher opp %d\n",
483 __func__, r);
484 /*
485 * Cleanup - disable the higher freqs - we dont care
486 * about the results
487 */
488 opp_disable(mpu_dev, 800000000);
489 opp_disable(iva_dev, 660000000);
490 }
491 }
492 return;
493}
494
495static void __init omap3_beagle_init(void)
496{
497 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
498 omap3_beagle_init_rev();
499
500 if (gpio_is_valid(beagle_config.mmc1_gpio_wp))
501 omap_mux_init_gpio(beagle_config.mmc1_gpio_wp, OMAP_PIN_INPUT);
502 mmc[0].caps = beagle_config.mmc_caps;
503 omap_hsmmc_init(mmc);
504
505 omap3_beagle_i2c_init();
506
507 gpio_buttons[0].gpio = beagle_config.usr_button_gpio;
508
509 platform_add_devices(omap3_beagle_devices,
510 ARRAY_SIZE(omap3_beagle_devices));
511 if (gpio_is_valid(beagle_config.dvi_pd_gpio))
512 omap_mux_init_gpio(beagle_config.dvi_pd_gpio, OMAP_PIN_OUTPUT);
513 omap_display_init(&beagle_dss_data);
514 omap_serial_init();
515 omap_sdrc_init(mt46h32m32lf6_sdrc_params,
516 mt46h32m32lf6_sdrc_params);
517
518 usb_musb_init(NULL);
519 usbhs_init(&usbhs_bdata);
520 omap_nand_flash_init(NAND_BUSWIDTH_16, omap3beagle_nand_partitions,
521 ARRAY_SIZE(omap3beagle_nand_partitions));
522
523 /* Ensure msecure is mux'd to be able to set the RTC. */
524 omap_mux_init_signal("sys_drm_msecure", OMAP_PIN_OFF_OUTPUT_HIGH);
525
526 /* Ensure SDRC pins are mux'd for self-refresh */
527 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
528 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
529
530 beagle_opp_init();
531}
532
533MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
534 /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
535 .atag_offset = 0x100,
536 .reserve = omap_reserve,
537 .map_io = omap3_map_io,
538 .init_early = omap3_init_early,
539 .init_irq = omap3_init_irq,
540 .handle_irq = omap3_intc_handle_irq,
541 .init_machine = omap3_beagle_init,
542 .init_late = omap3_init_late,
543 .timer = &omap3_secure_timer,
544 .restart = omap_prcm_restart,
545MACHINE_END