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 */
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>
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>
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>
45 #include "hsmmc.h"
46 #include "control.h"
47 #include "mux.h"
48 #include "common-board-devices.h"
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_HPD 60 /* Hot plug pin for HDMI */
55 #define HDMI_GPIO_LS_OE 41 /* Level shifter for HDMI */
57 /* wl127x BT, FM, GPS connectivity chip */
58 static int wl1271_gpios[] = {46, -1, -1};
59 static struct platform_device wl1271_device = {
60 .name = "kim",
61 .id = -1,
62 .dev = {
63 .platform_data = &wl1271_gpios,
64 },
65 };
67 static struct gpio_led gpio_leds[] = {
68 {
69 .name = "pandaboard::status1",
70 .default_trigger = "heartbeat",
71 .gpio = 7,
72 },
73 {
74 .name = "pandaboard::status2",
75 .default_trigger = "mmc0",
76 .gpio = 8,
77 },
78 };
80 static struct gpio_led_platform_data gpio_led_info = {
81 .leds = gpio_leds,
82 .num_leds = ARRAY_SIZE(gpio_leds),
83 };
85 static struct platform_device leds_gpio = {
86 .name = "leds-gpio",
87 .id = -1,
88 .dev = {
89 .platform_data = &gpio_led_info,
90 },
91 };
93 static struct platform_device *panda_devices[] __initdata = {
94 &leds_gpio,
95 &wl1271_device,
96 };
98 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
99 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
100 .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
101 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
102 .phy_reset = false,
103 .reset_gpio_port[0] = -EINVAL,
104 .reset_gpio_port[1] = -EINVAL,
105 .reset_gpio_port[2] = -EINVAL
106 };
108 static struct gpio panda_ehci_gpios[] __initdata = {
109 { GPIO_HUB_POWER, GPIOF_OUT_INIT_LOW, "hub_power" },
110 { GPIO_HUB_NRESET, GPIOF_OUT_INIT_LOW, "hub_nreset" },
111 };
113 static void __init omap4_ehci_init(void)
114 {
115 int ret;
116 struct clk *phy_ref_clk;
118 /* FREF_CLK3 provides the 19.2 MHz reference clock to the PHY */
119 phy_ref_clk = clk_get(NULL, "auxclk3_ck");
120 if (IS_ERR(phy_ref_clk)) {
121 pr_err("Cannot request auxclk3\n");
122 return;
123 }
124 clk_set_rate(phy_ref_clk, 19200000);
125 clk_enable(phy_ref_clk);
127 /* disable the power to the usb hub prior to init and reset phy+hub */
128 ret = gpio_request_array(panda_ehci_gpios,
129 ARRAY_SIZE(panda_ehci_gpios));
130 if (ret) {
131 pr_err("Unable to initialize EHCI power/reset\n");
132 return;
133 }
135 gpio_export(GPIO_HUB_POWER, 0);
136 gpio_export(GPIO_HUB_NRESET, 0);
137 gpio_set_value(GPIO_HUB_NRESET, 1);
139 usbhs_init(&usbhs_bdata);
141 /* enable power to hub */
142 gpio_set_value(GPIO_HUB_POWER, 1);
143 }
145 static struct omap_musb_board_data musb_board_data = {
146 .interface_type = MUSB_INTERFACE_UTMI,
147 .mode = MUSB_OTG,
148 .power = 100,
149 };
151 static struct omap2_hsmmc_info mmc[] = {
152 {
153 .mmc = 1,
154 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
155 .gpio_wp = -EINVAL,
156 .gpio_cd = -EINVAL,
157 },
158 {
159 .name = "wl1271",
160 .mmc = 5,
161 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
162 .gpio_wp = -EINVAL,
163 .gpio_cd = -EINVAL,
164 .ocr_mask = MMC_VDD_165_195,
165 .nonremovable = true,
166 },
167 {} /* Terminator */
168 };
170 static struct regulator_consumer_supply omap4_panda_vmmc5_supply[] = {
171 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.4"),
172 };
174 static struct regulator_init_data panda_vmmc5 = {
175 .constraints = {
176 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
177 },
178 .num_consumer_supplies = ARRAY_SIZE(omap4_panda_vmmc5_supply),
179 .consumer_supplies = omap4_panda_vmmc5_supply,
180 };
182 static struct fixed_voltage_config panda_vwlan = {
183 .supply_name = "vwl1271",
184 .microvolts = 1800000, /* 1.8V */
185 .gpio = GPIO_WIFI_PMENA,
186 .startup_delay = 70000, /* 70msec */
187 .enable_high = 1,
188 .enabled_at_boot = 0,
189 .init_data = &panda_vmmc5,
190 };
192 static struct platform_device omap_vwlan_device = {
193 .name = "reg-fixed-voltage",
194 .id = 1,
195 .dev = {
196 .platform_data = &panda_vwlan,
197 },
198 };
200 struct wl12xx_platform_data omap_panda_wlan_data __initdata = {
201 .irq = OMAP_GPIO_IRQ(GPIO_WIFI_IRQ),
202 /* PANDA ref clock is 38.4 MHz */
203 .board_ref_clock = 2,
204 };
206 static int omap4_twl6030_hsmmc_late_init(struct device *dev)
207 {
208 int ret = 0;
209 struct platform_device *pdev = container_of(dev,
210 struct platform_device, dev);
211 struct omap_mmc_platform_data *pdata = dev->platform_data;
213 if (!pdata) {
214 dev_err(dev, "%s: NULL platform data\n", __func__);
215 return -EINVAL;
216 }
217 /* Setting MMC1 Card detect Irq */
218 if (pdev->id == 0) {
219 ret = twl6030_mmc_card_detect_config();
220 if (ret)
221 dev_err(dev, "%s: Error card detect config(%d)\n",
222 __func__, ret);
223 else
224 pdata->slots[0].card_detect = twl6030_mmc_card_detect;
225 }
226 return ret;
227 }
229 static __init void omap4_twl6030_hsmmc_set_late_init(struct device *dev)
230 {
231 struct omap_mmc_platform_data *pdata;
233 /* dev can be null if CONFIG_MMC_OMAP_HS is not set */
234 if (!dev) {
235 pr_err("Failed omap4_twl6030_hsmmc_set_late_init\n");
236 return;
237 }
238 pdata = dev->platform_data;
240 pdata->init = omap4_twl6030_hsmmc_late_init;
241 }
243 static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
244 {
245 struct omap2_hsmmc_info *c;
247 omap2_hsmmc_init(controllers);
248 for (c = controllers; c->mmc; c++)
249 omap4_twl6030_hsmmc_set_late_init(c->dev);
251 return 0;
252 }
254 /* Panda board uses the common PMIC configuration */
255 static struct twl4030_platform_data omap4_panda_twldata;
257 /*
258 * Display monitor features are burnt in their EEPROM as EDID data. The EEPROM
259 * is connected as I2C slave device, and can be accessed at address 0x50
260 */
261 static struct i2c_board_info __initdata panda_i2c_eeprom[] = {
262 {
263 I2C_BOARD_INFO("eeprom", 0x50),
264 },
265 };
267 static int __init omap4_panda_i2c_init(void)
268 {
269 omap4_pmic_get_config(&omap4_panda_twldata, TWL_COMMON_PDATA_USB,
270 TWL_COMMON_REGULATOR_VDAC |
271 TWL_COMMON_REGULATOR_VAUX2 |
272 TWL_COMMON_REGULATOR_VAUX3 |
273 TWL_COMMON_REGULATOR_VMMC |
274 TWL_COMMON_REGULATOR_VPP |
275 TWL_COMMON_REGULATOR_VANA |
276 TWL_COMMON_REGULATOR_VCXIO |
277 TWL_COMMON_REGULATOR_VUSB |
278 TWL_COMMON_REGULATOR_CLK32KG);
279 omap4_pmic_init("twl6030", &omap4_panda_twldata);
280 omap_register_i2c_bus(2, 400, NULL, 0);
281 /*
282 * Bus 3 is attached to the DVI port where devices like the pico DLP
283 * projector don't work reliably with 400kHz
284 */
285 omap_register_i2c_bus(3, 100, panda_i2c_eeprom,
286 ARRAY_SIZE(panda_i2c_eeprom));
287 omap_register_i2c_bus(4, 400, NULL, 0);
288 return 0;
289 }
291 #ifdef CONFIG_OMAP_MUX
292 static struct omap_board_mux board_mux[] __initdata = {
293 /* WLAN IRQ - GPIO 53 */
294 OMAP4_MUX(GPMC_NCS3, OMAP_MUX_MODE3 | OMAP_PIN_INPUT),
295 /* WLAN POWER ENABLE - GPIO 43 */
296 OMAP4_MUX(GPMC_A19, OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT),
297 /* WLAN SDIO: MMC5 CMD */
298 OMAP4_MUX(SDMMC5_CMD, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
299 /* WLAN SDIO: MMC5 CLK */
300 OMAP4_MUX(SDMMC5_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
301 /* WLAN SDIO: MMC5 DAT[0-3] */
302 OMAP4_MUX(SDMMC5_DAT0, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
303 OMAP4_MUX(SDMMC5_DAT1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
304 OMAP4_MUX(SDMMC5_DAT2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
305 OMAP4_MUX(SDMMC5_DAT3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
306 /* gpio 0 - TFP410 PD */
307 OMAP4_MUX(KPD_COL1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE3),
308 /* dispc2_data23 */
309 OMAP4_MUX(USBB2_ULPITLL_STP, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
310 /* dispc2_data22 */
311 OMAP4_MUX(USBB2_ULPITLL_DIR, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
312 /* dispc2_data21 */
313 OMAP4_MUX(USBB2_ULPITLL_NXT, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
314 /* dispc2_data20 */
315 OMAP4_MUX(USBB2_ULPITLL_DAT0, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
316 /* dispc2_data19 */
317 OMAP4_MUX(USBB2_ULPITLL_DAT1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
318 /* dispc2_data18 */
319 OMAP4_MUX(USBB2_ULPITLL_DAT2, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
320 /* dispc2_data15 */
321 OMAP4_MUX(USBB2_ULPITLL_DAT3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
322 /* dispc2_data14 */
323 OMAP4_MUX(USBB2_ULPITLL_DAT4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
324 /* dispc2_data13 */
325 OMAP4_MUX(USBB2_ULPITLL_DAT5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
326 /* dispc2_data12 */
327 OMAP4_MUX(USBB2_ULPITLL_DAT6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
328 /* dispc2_data11 */
329 OMAP4_MUX(USBB2_ULPITLL_DAT7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
330 /* dispc2_data10 */
331 OMAP4_MUX(DPM_EMU3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
332 /* dispc2_data9 */
333 OMAP4_MUX(DPM_EMU4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
334 /* dispc2_data16 */
335 OMAP4_MUX(DPM_EMU5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
336 /* dispc2_data17 */
337 OMAP4_MUX(DPM_EMU6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
338 /* dispc2_hsync */
339 OMAP4_MUX(DPM_EMU7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
340 /* dispc2_pclk */
341 OMAP4_MUX(DPM_EMU8, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
342 /* dispc2_vsync */
343 OMAP4_MUX(DPM_EMU9, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
344 /* dispc2_de */
345 OMAP4_MUX(DPM_EMU10, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
346 /* dispc2_data8 */
347 OMAP4_MUX(DPM_EMU11, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
348 /* dispc2_data7 */
349 OMAP4_MUX(DPM_EMU12, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
350 /* dispc2_data6 */
351 OMAP4_MUX(DPM_EMU13, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
352 /* dispc2_data5 */
353 OMAP4_MUX(DPM_EMU14, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
354 /* dispc2_data4 */
355 OMAP4_MUX(DPM_EMU15, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
356 /* dispc2_data3 */
357 OMAP4_MUX(DPM_EMU16, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
358 /* dispc2_data2 */
359 OMAP4_MUX(DPM_EMU17, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
360 /* dispc2_data1 */
361 OMAP4_MUX(DPM_EMU18, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
362 /* dispc2_data0 */
363 OMAP4_MUX(DPM_EMU19, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
364 { .reg_offset = OMAP_MUX_TERMINATOR },
365 };
367 #else
368 #define board_mux NULL
369 #endif
371 /* Display DVI */
372 #define PANDA_DVI_TFP410_POWER_DOWN_GPIO 0
374 static int omap4_panda_enable_dvi(struct omap_dss_device *dssdev)
375 {
376 gpio_set_value(dssdev->reset_gpio, 1);
377 return 0;
378 }
380 static void omap4_panda_disable_dvi(struct omap_dss_device *dssdev)
381 {
382 gpio_set_value(dssdev->reset_gpio, 0);
383 }
385 /* Using generic display panel */
386 static struct panel_dvi_platform_data omap4_dvi_panel = {
387 .platform_enable = omap4_panda_enable_dvi,
388 .platform_disable = omap4_panda_disable_dvi,
389 .i2c_bus_num = 3,
390 };
392 struct omap_dss_device omap4_panda_dvi_device = {
393 .type = OMAP_DISPLAY_TYPE_DPI,
394 .name = "dvi",
395 .driver_name = "dvi",
396 .data = &omap4_dvi_panel,
397 .phy.dpi.data_lines = 24,
398 .reset_gpio = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
399 .channel = OMAP_DSS_CHANNEL_LCD2,
400 };
402 int __init omap4_panda_dvi_init(void)
403 {
404 int r;
406 /* Requesting TFP410 DVI GPIO and disabling it, at bootup */
407 r = gpio_request_one(omap4_panda_dvi_device.reset_gpio,
408 GPIOF_OUT_INIT_LOW, "DVI PD");
409 if (r)
410 pr_err("Failed to get DVI powerdown GPIO\n");
412 return r;
413 }
416 static void omap4_panda_hdmi_mux_init(void)
417 {
418 /* PAD0_HDMI_HPD_PAD1_HDMI_CEC */
419 omap_mux_init_signal("hdmi_hpd",
420 OMAP_PIN_INPUT_PULLUP);
421 omap_mux_init_signal("hdmi_cec",
422 OMAP_PIN_INPUT_PULLUP);
423 /* PAD0_HDMI_DDC_SCL_PAD1_HDMI_DDC_SDA */
424 omap_mux_init_signal("hdmi_ddc_scl",
425 OMAP_PIN_INPUT_PULLUP);
426 omap_mux_init_signal("hdmi_ddc_sda",
427 OMAP_PIN_INPUT_PULLUP);
428 }
430 static struct gpio panda_hdmi_gpios[] = {
431 { HDMI_GPIO_HPD, GPIOF_OUT_INIT_HIGH, "hdmi_gpio_hpd" },
432 { HDMI_GPIO_LS_OE, GPIOF_OUT_INIT_HIGH, "hdmi_gpio_ls_oe" },
433 };
435 static int omap4_panda_panel_enable_hdmi(struct omap_dss_device *dssdev)
436 {
437 int status;
439 status = gpio_request_array(panda_hdmi_gpios,
440 ARRAY_SIZE(panda_hdmi_gpios));
441 if (status)
442 pr_err("Cannot request HDMI GPIOs\n");
444 return status;
445 }
447 static void omap4_panda_panel_disable_hdmi(struct omap_dss_device *dssdev)
448 {
449 gpio_free(HDMI_GPIO_LS_OE);
450 gpio_free(HDMI_GPIO_HPD);
451 }
453 static struct omap_dss_device omap4_panda_hdmi_device = {
454 .name = "hdmi",
455 .driver_name = "hdmi_panel",
456 .type = OMAP_DISPLAY_TYPE_HDMI,
457 .platform_enable = omap4_panda_panel_enable_hdmi,
458 .platform_disable = omap4_panda_panel_disable_hdmi,
459 .channel = OMAP_DSS_CHANNEL_DIGIT,
460 };
462 static struct omap_dss_device *omap4_panda_dss_devices[] = {
463 &omap4_panda_dvi_device,
464 &omap4_panda_hdmi_device,
465 };
467 static struct omap_dss_board_info omap4_panda_dss_data = {
468 .num_devices = ARRAY_SIZE(omap4_panda_dss_devices),
469 .devices = omap4_panda_dss_devices,
470 .default_device = &omap4_panda_dvi_device,
471 };
473 void omap4_panda_display_init(void)
474 {
475 int r;
477 r = omap4_panda_dvi_init();
478 if (r)
479 pr_err("error initializing panda DVI\n");
481 omap4_panda_hdmi_mux_init();
482 omap_display_init(&omap4_panda_dss_data);
483 }
485 static void __init omap4_panda_init(void)
486 {
487 int package = OMAP_PACKAGE_CBS;
489 if (omap_rev() == OMAP4430_REV_ES1_0)
490 package = OMAP_PACKAGE_CBL;
491 omap4_mux_init(board_mux, NULL, package);
493 if (wl12xx_set_platform_data(&omap_panda_wlan_data))
494 pr_err("error setting wl12xx data\n");
496 omap4_panda_i2c_init();
497 platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
498 platform_device_register(&omap_vwlan_device);
499 omap_serial_init();
500 omap_sdrc_init(NULL, NULL);
501 omap4_twl6030_hsmmc_init(mmc);
502 omap4_ehci_init();
503 usb_musb_init(&musb_board_data);
504 omap4_panda_display_init();
505 }
507 MACHINE_START(OMAP4_PANDA, "OMAP4 Panda board")
508 /* Maintainer: David Anders - Texas Instruments Inc */
509 .atag_offset = 0x100,
510 .reserve = omap_reserve,
511 .map_io = omap4_map_io,
512 .init_early = omap4430_init_early,
513 .init_irq = gic_init_irq,
514 .handle_irq = gic_handle_irq,
515 .init_machine = omap4_panda_init,
516 .timer = &omap4_timer,
517 MACHINE_END