1 /*
2 * Board support file for OMAP4430 based PandaBoard.
3 *
4 * Copyright (C) 2010 Texas Instruments
5 *
6 * Author: David Anders <x0132446@ti.com>
7 *
8 * Based on mach-omap2/board-4430sdp.c
9 *
10 * Author: Santosh Shilimkar <santosh.shilimkar@ti.com>
11 *
12 * Based on mach-omap2/board-3430sdp.c
13 *
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License version 2 as
16 * published by the Free Software Foundation.
17 */
18
19 #include <linux/kernel.h>
20 #include <linux/init.h>
21 #include <linux/platform_device.h>
22 #include <linux/clk.h>
23 #include <linux/io.h>
24 #include <linux/leds.h>
25 #include <linux/gpio.h>
26 #include <linux/usb/otg.h>
27 #include <linux/i2c/twl.h>
28 #include <linux/regulator/machine.h>
29 #include <linux/regulator/fixed.h>
30 #include <linux/wl12xx.h>
31
32 #include <mach/hardware.h>
33 #include <asm/hardware/gic.h>
34 #include <asm/mach-types.h>
35 #include <asm/mach/arch.h>
36 #include <asm/mach/map.h>
37 #include <video/omapdss.h>
38
39 #include <plat/board.h>
40 #include "common.h"
41 #include <plat/usb.h>
42 #include <plat/mmc.h>
43 #include <video/omap-panel-dvi.h>
44
45 #include "hsmmc.h"
46 #include "control.h"
47 #include "mux.h"
48 #include "common-board-devices.h"
49
50 #define GPIO_HUB_POWER 1
51 #define GPIO_HUB_NRESET 62
52 #define GPIO_WIFI_PMENA 43
53 #define GPIO_WIFI_IRQ 53
54 #define HDMI_GPIO_CT_CP_HPD 60 /* HPD mode enable/disable */
55 #define HDMI_GPIO_LS_OE 41 /* Level shifter for HDMI */
56 #define HDMI_GPIO_HPD 63 /* Hotplug detect */
57
58 /* wl127x BT, FM, GPS connectivity chip */
59 static int wl1271_gpios[] = {46, -1, -1};
60 static struct platform_device wl1271_device = {
61 .name = "kim",
62 .id = -1,
63 .dev = {
64 .platform_data = &wl1271_gpios,
65 },
66 };
67
68 static struct gpio_led gpio_leds[] = {
69 {
70 .name = "pandaboard::status1",
71 .default_trigger = "heartbeat",
72 .gpio = 7,
73 },
74 {
75 .name = "pandaboard::status2",
76 .default_trigger = "mmc0",
77 .gpio = 8,
78 },
79 };
80
81 static struct gpio_led_platform_data gpio_led_info = {
82 .leds = gpio_leds,
83 .num_leds = ARRAY_SIZE(gpio_leds),
84 };
85
86 static struct platform_device leds_gpio = {
87 .name = "leds-gpio",
88 .id = -1,
89 .dev = {
90 .platform_data = &gpio_led_info,
91 },
92 };
93
94 static struct platform_device *panda_devices[] __initdata = {
95 &leds_gpio,
96 &wl1271_device,
97 };
98
99 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
100 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
101 .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
102 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
103 .phy_reset = false,
104 .reset_gpio_port[0] = -EINVAL,
105 .reset_gpio_port[1] = -EINVAL,
106 .reset_gpio_port[2] = -EINVAL
107 };
108
109 static struct gpio panda_ehci_gpios[] __initdata = {
110 { GPIO_HUB_POWER, GPIOF_OUT_INIT_LOW, "hub_power" },
111 { GPIO_HUB_NRESET, GPIOF_OUT_INIT_LOW, "hub_nreset" },
112 };
113
omap4_ehci_init(void)114 static void __init omap4_ehci_init(void)
115 {
116 int ret;
117 struct clk *phy_ref_clk;
118
119 /* FREF_CLK3 provides the 19.2 MHz reference clock to the PHY */
120 phy_ref_clk = clk_get(NULL, "auxclk3_ck");
121 if (IS_ERR(phy_ref_clk)) {
122 pr_err("Cannot request auxclk3\n");
123 return;
124 }
125 clk_set_rate(phy_ref_clk, 19200000);
126 clk_enable(phy_ref_clk);
127
128 /* disable the power to the usb hub prior to init and reset phy+hub */
129 ret = gpio_request_array(panda_ehci_gpios,
130 ARRAY_SIZE(panda_ehci_gpios));
131 if (ret) {
132 pr_err("Unable to initialize EHCI power/reset\n");
133 return;
134 }
135
136 gpio_export(GPIO_HUB_POWER, 0);
137 gpio_export(GPIO_HUB_NRESET, 0);
138 gpio_set_value(GPIO_HUB_NRESET, 1);
139
140 usbhs_init(&usbhs_bdata);
141
142 /* enable power to hub */
143 gpio_set_value(GPIO_HUB_POWER, 1);
144 }
145
146 static struct omap_musb_board_data musb_board_data = {
147 .interface_type = MUSB_INTERFACE_UTMI,
148 .mode = MUSB_OTG,
149 .power = 100,
150 };
151
152 static struct omap2_hsmmc_info mmc[] = {
153 {
154 .mmc = 1,
155 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
156 .gpio_wp = -EINVAL,
157 .gpio_cd = -EINVAL,
158 },
159 {
160 .name = "wl1271",
161 .mmc = 5,
162 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
163 .gpio_wp = -EINVAL,
164 .gpio_cd = -EINVAL,
165 .ocr_mask = MMC_VDD_165_195,
166 .nonremovable = true,
167 },
168 {} /* Terminator */
169 };
170
171 static struct regulator_consumer_supply omap4_panda_vmmc5_supply[] = {
172 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.4"),
173 };
174
175 static struct regulator_init_data panda_vmmc5 = {
176 .constraints = {
177 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
178 },
179 .num_consumer_supplies = ARRAY_SIZE(omap4_panda_vmmc5_supply),
180 .consumer_supplies = omap4_panda_vmmc5_supply,
181 };
182
183 static struct fixed_voltage_config panda_vwlan = {
184 .supply_name = "vwl1271",
185 .microvolts = 1800000, /* 1.8V */
186 .gpio = GPIO_WIFI_PMENA,
187 .startup_delay = 70000, /* 70msec */
188 .enable_high = 1,
189 .enabled_at_boot = 0,
190 .init_data = &panda_vmmc5,
191 };
192
193 static struct platform_device omap_vwlan_device = {
194 .name = "reg-fixed-voltage",
195 .id = 1,
196 .dev = {
197 .platform_data = &panda_vwlan,
198 },
199 };
200
201 struct wl12xx_platform_data omap_panda_wlan_data __initdata = {
202 .irq = OMAP_GPIO_IRQ(GPIO_WIFI_IRQ),
203 /* PANDA ref clock is 38.4 MHz */
204 .board_ref_clock = 2,
205 };
206
omap4_twl6030_hsmmc_late_init(struct device * dev)207 static int omap4_twl6030_hsmmc_late_init(struct device *dev)
208 {
209 int ret = 0;
210 struct platform_device *pdev = container_of(dev,
211 struct platform_device, dev);
212 struct omap_mmc_platform_data *pdata = dev->platform_data;
213
214 if (!pdata) {
215 dev_err(dev, "%s: NULL platform data\n", __func__);
216 return -EINVAL;
217 }
218 /* Setting MMC1 Card detect Irq */
219 if (pdev->id == 0) {
220 ret = twl6030_mmc_card_detect_config();
221 if (ret)
222 dev_err(dev, "%s: Error card detect config(%d)\n",
223 __func__, ret);
224 else
225 pdata->slots[0].card_detect = twl6030_mmc_card_detect;
226 }
227 return ret;
228 }
229
omap4_twl6030_hsmmc_set_late_init(struct device * dev)230 static __init void omap4_twl6030_hsmmc_set_late_init(struct device *dev)
231 {
232 struct omap_mmc_platform_data *pdata;
233
234 /* dev can be null if CONFIG_MMC_OMAP_HS is not set */
235 if (!dev) {
236 pr_err("Failed omap4_twl6030_hsmmc_set_late_init\n");
237 return;
238 }
239 pdata = dev->platform_data;
240
241 pdata->init = omap4_twl6030_hsmmc_late_init;
242 }
243
omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info * controllers)244 static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
245 {
246 struct omap2_hsmmc_info *c;
247
248 omap2_hsmmc_init(controllers);
249 for (c = controllers; c->mmc; c++)
250 omap4_twl6030_hsmmc_set_late_init(c->dev);
251
252 return 0;
253 }
254
255 /* Panda board uses the common PMIC configuration */
256 static struct twl4030_platform_data omap4_panda_twldata;
257
258 /*
259 * Display monitor features are burnt in their EEPROM as EDID data. The EEPROM
260 * is connected as I2C slave device, and can be accessed at address 0x50
261 */
262 static struct i2c_board_info __initdata panda_i2c_eeprom[] = {
263 {
264 I2C_BOARD_INFO("eeprom", 0x50),
265 },
266 };
267
omap4_panda_i2c_init(void)268 static int __init omap4_panda_i2c_init(void)
269 {
270 omap4_pmic_get_config(&omap4_panda_twldata, TWL_COMMON_PDATA_USB,
271 TWL_COMMON_REGULATOR_VDAC |
272 TWL_COMMON_REGULATOR_VAUX2 |
273 TWL_COMMON_REGULATOR_VAUX3 |
274 TWL_COMMON_REGULATOR_VMMC |
275 TWL_COMMON_REGULATOR_VPP |
276 TWL_COMMON_REGULATOR_VANA |
277 TWL_COMMON_REGULATOR_VCXIO |
278 TWL_COMMON_REGULATOR_VUSB |
279 TWL_COMMON_REGULATOR_CLK32KG);
280 omap4_pmic_init("twl6030", &omap4_panda_twldata);
281 omap_register_i2c_bus(2, 400, NULL, 0);
282 /*
283 * Bus 3 is attached to the DVI port where devices like the pico DLP
284 * projector don't work reliably with 400kHz
285 */
286 omap_register_i2c_bus(3, 100, panda_i2c_eeprom,
287 ARRAY_SIZE(panda_i2c_eeprom));
288 omap_register_i2c_bus(4, 400, NULL, 0);
289 return 0;
290 }
291
292 #ifdef CONFIG_OMAP_MUX
293 static struct omap_board_mux board_mux[] __initdata = {
294 /* WLAN IRQ - GPIO 53 */
295 OMAP4_MUX(GPMC_NCS3, OMAP_MUX_MODE3 | OMAP_PIN_INPUT),
296 /* WLAN POWER ENABLE - GPIO 43 */
297 OMAP4_MUX(GPMC_A19, OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT),
298 /* WLAN SDIO: MMC5 CMD */
299 OMAP4_MUX(SDMMC5_CMD, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
300 /* WLAN SDIO: MMC5 CLK */
301 OMAP4_MUX(SDMMC5_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
302 /* WLAN SDIO: MMC5 DAT[0-3] */
303 OMAP4_MUX(SDMMC5_DAT0, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
304 OMAP4_MUX(SDMMC5_DAT1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
305 OMAP4_MUX(SDMMC5_DAT2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
306 OMAP4_MUX(SDMMC5_DAT3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
307 /* gpio 0 - TFP410 PD */
308 OMAP4_MUX(KPD_COL1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE3),
309 /* dispc2_data23 */
310 OMAP4_MUX(USBB2_ULPITLL_STP, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
311 /* dispc2_data22 */
312 OMAP4_MUX(USBB2_ULPITLL_DIR, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
313 /* dispc2_data21 */
314 OMAP4_MUX(USBB2_ULPITLL_NXT, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
315 /* dispc2_data20 */
316 OMAP4_MUX(USBB2_ULPITLL_DAT0, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
317 /* dispc2_data19 */
318 OMAP4_MUX(USBB2_ULPITLL_DAT1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
319 /* dispc2_data18 */
320 OMAP4_MUX(USBB2_ULPITLL_DAT2, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
321 /* dispc2_data15 */
322 OMAP4_MUX(USBB2_ULPITLL_DAT3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
323 /* dispc2_data14 */
324 OMAP4_MUX(USBB2_ULPITLL_DAT4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
325 /* dispc2_data13 */
326 OMAP4_MUX(USBB2_ULPITLL_DAT5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
327 /* dispc2_data12 */
328 OMAP4_MUX(USBB2_ULPITLL_DAT6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
329 /* dispc2_data11 */
330 OMAP4_MUX(USBB2_ULPITLL_DAT7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
331 /* dispc2_data10 */
332 OMAP4_MUX(DPM_EMU3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
333 /* dispc2_data9 */
334 OMAP4_MUX(DPM_EMU4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
335 /* dispc2_data16 */
336 OMAP4_MUX(DPM_EMU5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
337 /* dispc2_data17 */
338 OMAP4_MUX(DPM_EMU6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
339 /* dispc2_hsync */
340 OMAP4_MUX(DPM_EMU7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
341 /* dispc2_pclk */
342 OMAP4_MUX(DPM_EMU8, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
343 /* dispc2_vsync */
344 OMAP4_MUX(DPM_EMU9, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
345 /* dispc2_de */
346 OMAP4_MUX(DPM_EMU10, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
347 /* dispc2_data8 */
348 OMAP4_MUX(DPM_EMU11, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
349 /* dispc2_data7 */
350 OMAP4_MUX(DPM_EMU12, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
351 /* dispc2_data6 */
352 OMAP4_MUX(DPM_EMU13, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
353 /* dispc2_data5 */
354 OMAP4_MUX(DPM_EMU14, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
355 /* dispc2_data4 */
356 OMAP4_MUX(DPM_EMU15, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
357 /* dispc2_data3 */
358 OMAP4_MUX(DPM_EMU16, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
359 /* dispc2_data2 */
360 OMAP4_MUX(DPM_EMU17, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
361 /* dispc2_data1 */
362 OMAP4_MUX(DPM_EMU18, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
363 /* dispc2_data0 */
364 OMAP4_MUX(DPM_EMU19, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
365 { .reg_offset = OMAP_MUX_TERMINATOR },
366 };
367
368 #else
369 #define board_mux NULL
370 #endif
371
372 /* Display DVI */
373 #define PANDA_DVI_TFP410_POWER_DOWN_GPIO 0
374
omap4_panda_enable_dvi(struct omap_dss_device * dssdev)375 static int omap4_panda_enable_dvi(struct omap_dss_device *dssdev)
376 {
377 gpio_set_value(dssdev->reset_gpio, 1);
378 return 0;
379 }
380
omap4_panda_disable_dvi(struct omap_dss_device * dssdev)381 static void omap4_panda_disable_dvi(struct omap_dss_device *dssdev)
382 {
383 gpio_set_value(dssdev->reset_gpio, 0);
384 }
385
386 /* Using generic display panel */
387 static struct panel_dvi_platform_data omap4_dvi_panel = {
388 .platform_enable = omap4_panda_enable_dvi,
389 .platform_disable = omap4_panda_disable_dvi,
390 .i2c_bus_num = 3,
391 };
392
393 struct omap_dss_device omap4_panda_dvi_device = {
394 .type = OMAP_DISPLAY_TYPE_DPI,
395 .name = "dvi",
396 .driver_name = "dvi",
397 .data = &omap4_dvi_panel,
398 .phy.dpi.data_lines = 24,
399 .reset_gpio = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
400 .channel = OMAP_DSS_CHANNEL_LCD2,
401 };
402
omap4_panda_dvi_init(void)403 int __init omap4_panda_dvi_init(void)
404 {
405 int r;
406
407 /* Requesting TFP410 DVI GPIO and disabling it, at bootup */
408 r = gpio_request_one(omap4_panda_dvi_device.reset_gpio,
409 GPIOF_OUT_INIT_LOW, "DVI PD");
410 if (r)
411 pr_err("Failed to get DVI powerdown GPIO\n");
412
413 return r;
414 }
415
416 static struct gpio panda_hdmi_gpios[] = {
417 { HDMI_GPIO_CT_CP_HPD, GPIOF_OUT_INIT_HIGH, "hdmi_gpio_ct_cp_hpd" },
418 { HDMI_GPIO_LS_OE, GPIOF_OUT_INIT_HIGH, "hdmi_gpio_ls_oe" },
419 { HDMI_GPIO_HPD, GPIOF_DIR_IN, "hdmi_gpio_hpd" },
420 };
421
omap4_panda_panel_enable_hdmi(struct omap_dss_device * dssdev)422 static int omap4_panda_panel_enable_hdmi(struct omap_dss_device *dssdev)
423 {
424 int status;
425
426 status = gpio_request_array(panda_hdmi_gpios,
427 ARRAY_SIZE(panda_hdmi_gpios));
428 if (status)
429 pr_err("Cannot request HDMI GPIOs\n");
430
431 return status;
432 }
433
omap4_panda_panel_disable_hdmi(struct omap_dss_device * dssdev)434 static void omap4_panda_panel_disable_hdmi(struct omap_dss_device *dssdev)
435 {
436 gpio_free_array(panda_hdmi_gpios, ARRAY_SIZE(panda_hdmi_gpios));
437 }
438
439 static struct omap_dss_hdmi_data omap4_panda_hdmi_data = {
440 .hpd_gpio = HDMI_GPIO_HPD,
441 };
442
443 static struct omap_dss_device omap4_panda_hdmi_device = {
444 .name = "hdmi",
445 .driver_name = "hdmi_panel",
446 .type = OMAP_DISPLAY_TYPE_HDMI,
447 .platform_enable = omap4_panda_panel_enable_hdmi,
448 .platform_disable = omap4_panda_panel_disable_hdmi,
449 .channel = OMAP_DSS_CHANNEL_DIGIT,
450 .data = &omap4_panda_hdmi_data,
451 };
452
453 static struct omap_dss_device *omap4_panda_dss_devices[] = {
454 &omap4_panda_dvi_device,
455 &omap4_panda_hdmi_device,
456 };
457
458 static struct omap_dss_board_info omap4_panda_dss_data = {
459 .num_devices = ARRAY_SIZE(omap4_panda_dss_devices),
460 .devices = omap4_panda_dss_devices,
461 .default_device = &omap4_panda_dvi_device,
462 };
463
omap4_panda_display_init(void)464 void omap4_panda_display_init(void)
465 {
466 int r;
467
468 r = omap4_panda_dvi_init();
469 if (r)
470 pr_err("error initializing panda DVI\n");
471
472 omap_display_init(&omap4_panda_dss_data);
473
474 /*
475 * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and
476 * later have external pull up on the HDMI I2C lines
477 */
478 if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2)
479 omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP);
480 else
481 omap_hdmi_init(0);
482
483 omap_mux_init_gpio(HDMI_GPIO_LS_OE, OMAP_PIN_OUTPUT);
484 omap_mux_init_gpio(HDMI_GPIO_CT_CP_HPD, OMAP_PIN_OUTPUT);
485 omap_mux_init_gpio(HDMI_GPIO_HPD, OMAP_PIN_INPUT_PULLDOWN);
486 }
487
omap4_panda_init(void)488 static void __init omap4_panda_init(void)
489 {
490 int package = OMAP_PACKAGE_CBS;
491 int ret;
492
493 if (omap_rev() == OMAP4430_REV_ES1_0)
494 package = OMAP_PACKAGE_CBL;
495 omap4_mux_init(board_mux, NULL, package);
496
497 ret = wl12xx_set_platform_data(&omap_panda_wlan_data);
498 if (ret)
499 pr_err("error setting wl12xx data: %d\n", ret);
500
501 omap4_panda_i2c_init();
502 platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
503 platform_device_register(&omap_vwlan_device);
504 omap_serial_init();
505 omap_sdrc_init(NULL, NULL);
506 omap4_twl6030_hsmmc_init(mmc);
507 omap4_ehci_init();
508 usb_musb_init(&musb_board_data);
509 omap4_panda_display_init();
510 }
511
512 MACHINE_START(OMAP4_PANDA, "OMAP4 Panda board")
513 /* Maintainer: David Anders - Texas Instruments Inc */
514 .atag_offset = 0x100,
515 .reserve = omap_reserve,
516 .map_io = omap4_map_io,
517 .init_early = omap4430_init_early,
518 .init_irq = gic_init_irq,
519 .handle_irq = gic_handle_irq,
520 .init_machine = omap4_panda_init,
521 .timer = &omap4_timer,
522 .restart = omap_prcm_restart,
523 MACHINE_END
524