2 * Board support file for OMAP4430 based PandaBoard.
4 * Copyright (C) 2010 Texas Instruments
6 * Author: David Anders <x0132446@ti.com>
8 * Based on mach-omap2/board-4430sdp.c
10 * Author: Santosh Shilimkar <santosh.shilimkar@ti.com>
12 * Based on mach-omap2/board-3430sdp.c
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.
19 #include <linux/kernel.h>
20 #include <linux/init.h>
21 #include <linux/platform_device.h>
22 #include <linux/clk.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 <mach/omap4-common.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 <plat/common.h>
43 #include <video/omap-panel-dvi.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 = {
63 .platform_data = &wl1271_gpios,
67 static struct gpio_led gpio_leds[] = {
69 .name = "pandaboard::status1",
70 .default_trigger = "heartbeat",
74 .name = "pandaboard::status2",
75 .default_trigger = "mmc0",
80 static struct gpio_led_platform_data gpio_led_info = {
82 .num_leds = ARRAY_SIZE(gpio_leds),
85 static struct platform_device leds_gpio = {
89 .platform_data = &gpio_led_info,
93 static struct platform_device *panda_devices[] __initdata = {
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,
103 .reset_gpio_port[0] = -EINVAL,
104 .reset_gpio_port[1] = -EINVAL,
105 .reset_gpio_port[2] = -EINVAL
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" },
113 static void __init omap4_ehci_init(void)
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");
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));
131 pr_err("Unable to initialize EHCI power/reset\n");
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);
145 static struct omap_musb_board_data musb_board_data = {
146 .interface_type = MUSB_INTERFACE_UTMI,
151 static struct omap2_hsmmc_info mmc[] = {
154 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
161 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
164 .ocr_mask = MMC_VDD_165_195,
165 .nonremovable = true,
170 static struct regulator_consumer_supply omap4_panda_vmmc5_supply[] = {
171 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.4"),
174 static struct regulator_init_data panda_vmmc5 = {
176 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
178 .num_consumer_supplies = ARRAY_SIZE(omap4_panda_vmmc5_supply),
179 .consumer_supplies = omap4_panda_vmmc5_supply,
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 */
188 .enabled_at_boot = 0,
189 .init_data = &panda_vmmc5,
192 static struct platform_device omap_vwlan_device = {
193 .name = "reg-fixed-voltage",
196 .platform_data = &panda_vwlan,
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,
206 static int omap4_twl6030_hsmmc_late_init(struct device *dev)
209 struct platform_device *pdev = container_of(dev,
210 struct platform_device, dev);
211 struct omap_mmc_platform_data *pdata = dev->platform_data;
214 dev_err(dev, "%s: NULL platform data\n", __func__);
217 /* Setting MMC1 Card detect Irq */
219 ret = twl6030_mmc_card_detect_config();
221 dev_err(dev, "%s: Error card detect config(%d)\n",
224 pdata->slots[0].card_detect = twl6030_mmc_card_detect;
229 static __init void omap4_twl6030_hsmmc_set_late_init(struct device *dev)
231 struct omap_mmc_platform_data *pdata;
233 /* dev can be null if CONFIG_MMC_OMAP_HS is not set */
235 pr_err("Failed omap4_twl6030_hsmmc_set_late_init\n");
238 pdata = dev->platform_data;
240 pdata->init = omap4_twl6030_hsmmc_late_init;
243 static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
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);
254 /* Panda board uses the common PMIC configuration */
255 static struct twl4030_platform_data omap4_panda_twldata;
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
261 static struct i2c_board_info __initdata panda_i2c_eeprom[] = {
263 I2C_BOARD_INFO("eeprom", 0x50),
267 static int __init omap4_panda_i2c_init(void)
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);
282 * Bus 3 is attached to the DVI port where devices like the pico DLP
283 * projector don't work reliably with 400kHz
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);
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),
309 OMAP4_MUX(USBB2_ULPITLL_STP, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
311 OMAP4_MUX(USBB2_ULPITLL_DIR, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
313 OMAP4_MUX(USBB2_ULPITLL_NXT, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
315 OMAP4_MUX(USBB2_ULPITLL_DAT0, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
317 OMAP4_MUX(USBB2_ULPITLL_DAT1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
319 OMAP4_MUX(USBB2_ULPITLL_DAT2, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
321 OMAP4_MUX(USBB2_ULPITLL_DAT3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
323 OMAP4_MUX(USBB2_ULPITLL_DAT4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
325 OMAP4_MUX(USBB2_ULPITLL_DAT5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
327 OMAP4_MUX(USBB2_ULPITLL_DAT6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
329 OMAP4_MUX(USBB2_ULPITLL_DAT7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
331 OMAP4_MUX(DPM_EMU3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
333 OMAP4_MUX(DPM_EMU4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
335 OMAP4_MUX(DPM_EMU5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
337 OMAP4_MUX(DPM_EMU6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
339 OMAP4_MUX(DPM_EMU7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
341 OMAP4_MUX(DPM_EMU8, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
343 OMAP4_MUX(DPM_EMU9, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
345 OMAP4_MUX(DPM_EMU10, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
347 OMAP4_MUX(DPM_EMU11, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
349 OMAP4_MUX(DPM_EMU12, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
351 OMAP4_MUX(DPM_EMU13, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
353 OMAP4_MUX(DPM_EMU14, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
355 OMAP4_MUX(DPM_EMU15, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
357 OMAP4_MUX(DPM_EMU16, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
359 OMAP4_MUX(DPM_EMU17, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
361 OMAP4_MUX(DPM_EMU18, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
363 OMAP4_MUX(DPM_EMU19, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
364 { .reg_offset = OMAP_MUX_TERMINATOR },
367 static struct omap_device_pad serial2_pads[] __initdata = {
368 OMAP_MUX_STATIC("uart2_cts.uart2_cts",
369 OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0),
370 OMAP_MUX_STATIC("uart2_rts.uart2_rts",
371 OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
372 OMAP_MUX_STATIC("uart2_rx.uart2_rx",
373 OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0),
374 OMAP_MUX_STATIC("uart2_tx.uart2_tx",
375 OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
378 static struct omap_device_pad serial3_pads[] __initdata = {
379 OMAP_MUX_STATIC("uart3_cts_rctx.uart3_cts_rctx",
380 OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0),
381 OMAP_MUX_STATIC("uart3_rts_sd.uart3_rts_sd",
382 OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
383 OMAP_MUX_STATIC("uart3_rx_irrx.uart3_rx_irrx",
384 OMAP_PIN_INPUT | OMAP_MUX_MODE0),
385 OMAP_MUX_STATIC("uart3_tx_irtx.uart3_tx_irtx",
386 OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
389 static struct omap_device_pad serial4_pads[] __initdata = {
390 OMAP_MUX_STATIC("uart4_rx.uart4_rx",
391 OMAP_PIN_INPUT | OMAP_MUX_MODE0),
392 OMAP_MUX_STATIC("uart4_tx.uart4_tx",
393 OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
396 static struct omap_board_data serial2_data __initdata = {
398 .pads = serial2_pads,
399 .pads_cnt = ARRAY_SIZE(serial2_pads),
402 static struct omap_board_data serial3_data __initdata = {
404 .pads = serial3_pads,
405 .pads_cnt = ARRAY_SIZE(serial3_pads),
408 static struct omap_board_data serial4_data __initdata = {
410 .pads = serial4_pads,
411 .pads_cnt = ARRAY_SIZE(serial4_pads),
414 static inline void board_serial_init(void)
416 struct omap_board_data bdata;
421 /* pass dummy data for UART1 */
422 omap_serial_init_port(&bdata);
424 omap_serial_init_port(&serial2_data);
425 omap_serial_init_port(&serial3_data);
426 omap_serial_init_port(&serial4_data);
429 #define board_mux NULL
431 static inline void board_serial_init(void)
438 #define PANDA_DVI_TFP410_POWER_DOWN_GPIO 0
440 static int omap4_panda_enable_dvi(struct omap_dss_device *dssdev)
442 gpio_set_value(dssdev->reset_gpio, 1);
446 static void omap4_panda_disable_dvi(struct omap_dss_device *dssdev)
448 gpio_set_value(dssdev->reset_gpio, 0);
451 /* Using generic display panel */
452 static struct panel_dvi_platform_data omap4_dvi_panel = {
453 .platform_enable = omap4_panda_enable_dvi,
454 .platform_disable = omap4_panda_disable_dvi,
458 struct omap_dss_device omap4_panda_dvi_device = {
459 .type = OMAP_DISPLAY_TYPE_DPI,
461 .driver_name = "dvi",
462 .data = &omap4_dvi_panel,
463 .phy.dpi.data_lines = 24,
464 .reset_gpio = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
465 .channel = OMAP_DSS_CHANNEL_LCD2,
468 int __init omap4_panda_dvi_init(void)
472 /* Requesting TFP410 DVI GPIO and disabling it, at bootup */
473 r = gpio_request_one(omap4_panda_dvi_device.reset_gpio,
474 GPIOF_OUT_INIT_LOW, "DVI PD");
476 pr_err("Failed to get DVI powerdown GPIO\n");
482 static void omap4_panda_hdmi_mux_init(void)
484 /* PAD0_HDMI_HPD_PAD1_HDMI_CEC */
485 omap_mux_init_signal("hdmi_hpd",
486 OMAP_PIN_INPUT_PULLUP);
487 omap_mux_init_signal("hdmi_cec",
488 OMAP_PIN_INPUT_PULLUP);
489 /* PAD0_HDMI_DDC_SCL_PAD1_HDMI_DDC_SDA */
490 omap_mux_init_signal("hdmi_ddc_scl",
491 OMAP_PIN_INPUT_PULLUP);
492 omap_mux_init_signal("hdmi_ddc_sda",
493 OMAP_PIN_INPUT_PULLUP);
496 static struct gpio panda_hdmi_gpios[] = {
497 { HDMI_GPIO_HPD, GPIOF_OUT_INIT_HIGH, "hdmi_gpio_hpd" },
498 { HDMI_GPIO_LS_OE, GPIOF_OUT_INIT_HIGH, "hdmi_gpio_ls_oe" },
501 static int omap4_panda_panel_enable_hdmi(struct omap_dss_device *dssdev)
505 status = gpio_request_array(panda_hdmi_gpios,
506 ARRAY_SIZE(panda_hdmi_gpios));
508 pr_err("Cannot request HDMI GPIOs\n");
513 static void omap4_panda_panel_disable_hdmi(struct omap_dss_device *dssdev)
515 gpio_free(HDMI_GPIO_LS_OE);
516 gpio_free(HDMI_GPIO_HPD);
519 static struct omap_dss_device omap4_panda_hdmi_device = {
521 .driver_name = "hdmi_panel",
522 .type = OMAP_DISPLAY_TYPE_HDMI,
523 .platform_enable = omap4_panda_panel_enable_hdmi,
524 .platform_disable = omap4_panda_panel_disable_hdmi,
525 .channel = OMAP_DSS_CHANNEL_DIGIT,
528 static struct omap_dss_device *omap4_panda_dss_devices[] = {
529 &omap4_panda_dvi_device,
530 &omap4_panda_hdmi_device,
533 static struct omap_dss_board_info omap4_panda_dss_data = {
534 .num_devices = ARRAY_SIZE(omap4_panda_dss_devices),
535 .devices = omap4_panda_dss_devices,
536 .default_device = &omap4_panda_dvi_device,
539 void omap4_panda_display_init(void)
543 r = omap4_panda_dvi_init();
545 pr_err("error initializing panda DVI\n");
547 omap4_panda_hdmi_mux_init();
548 omap_display_init(&omap4_panda_dss_data);
551 static void __init omap4_panda_init(void)
553 int package = OMAP_PACKAGE_CBS;
555 if (omap_rev() == OMAP4430_REV_ES1_0)
556 package = OMAP_PACKAGE_CBL;
557 omap4_mux_init(board_mux, NULL, package);
559 if (wl12xx_set_platform_data(&omap_panda_wlan_data))
560 pr_err("error setting wl12xx data\n");
562 omap4_panda_i2c_init();
563 platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
564 platform_device_register(&omap_vwlan_device);
566 omap_sdrc_init(NULL, NULL);
567 omap4_twl6030_hsmmc_init(mmc);
569 usb_musb_init(&musb_board_data);
570 omap4_panda_display_init();
573 MACHINE_START(OMAP4_PANDA, "OMAP4 Panda board")
574 /* Maintainer: David Anders - Texas Instruments Inc */
575 .atag_offset = 0x100,
576 .reserve = omap_reserve,
577 .map_io = omap4_map_io,
578 .init_early = omap4430_init_early,
579 .init_irq = gic_init_irq,
580 .init_machine = omap4_panda_init,
581 .timer = &omap4_timer,