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 <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>
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_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 */
58 /* wl127x BT, FM, GPS connectivity chip */
59 static int wl1271_gpios[] = {46, -1, -1};
60 static struct platform_device wl1271_device = {
64 .platform_data = &wl1271_gpios,
68 static struct gpio_led gpio_leds[] = {
70 .name = "pandaboard::status1",
71 .default_trigger = "heartbeat",
75 .name = "pandaboard::status2",
76 .default_trigger = "mmc0",
81 static struct gpio_led_platform_data gpio_led_info = {
83 .num_leds = ARRAY_SIZE(gpio_leds),
86 static struct platform_device leds_gpio = {
90 .platform_data = &gpio_led_info,
94 static struct platform_device btwilink_device = {
99 static struct platform_device *panda_devices[] __initdata = {
105 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
106 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
107 .port_mode[1] = OMAP_USBHS_PORT_MODE_UNUSED,
108 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
110 .reset_gpio_port[0] = -EINVAL,
111 .reset_gpio_port[1] = -EINVAL,
112 .reset_gpio_port[2] = -EINVAL
115 static struct gpio panda_ehci_gpios[] __initdata = {
116 { GPIO_HUB_POWER, GPIOF_OUT_INIT_LOW, "hub_power" },
117 { GPIO_HUB_NRESET, GPIOF_OUT_INIT_LOW, "hub_nreset" },
120 static void __init omap4_ehci_init(void)
123 struct clk *phy_ref_clk;
125 /* FREF_CLK3 provides the 19.2 MHz reference clock to the PHY */
126 phy_ref_clk = clk_get(NULL, "auxclk3_ck");
127 if (IS_ERR(phy_ref_clk)) {
128 pr_err("Cannot request auxclk3\n");
131 clk_set_rate(phy_ref_clk, 19200000);
132 clk_enable(phy_ref_clk);
134 /* disable the power to the usb hub prior to init and reset phy+hub */
135 ret = gpio_request_array(panda_ehci_gpios,
136 ARRAY_SIZE(panda_ehci_gpios));
138 pr_err("Unable to initialize EHCI power/reset\n");
142 gpio_export(GPIO_HUB_POWER, 0);
143 gpio_export(GPIO_HUB_NRESET, 0);
144 gpio_set_value(GPIO_HUB_NRESET, 1);
146 usbhs_init(&usbhs_bdata);
148 /* enable power to hub */
149 gpio_set_value(GPIO_HUB_POWER, 1);
152 static struct omap_musb_board_data musb_board_data = {
153 .interface_type = MUSB_INTERFACE_UTMI,
158 static struct omap2_hsmmc_info mmc[] = {
161 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
168 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
171 .ocr_mask = MMC_VDD_165_195,
172 .nonremovable = true,
177 static struct regulator_consumer_supply omap4_panda_vmmc5_supply[] = {
178 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.4"),
181 static struct regulator_init_data panda_vmmc5 = {
183 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
185 .num_consumer_supplies = ARRAY_SIZE(omap4_panda_vmmc5_supply),
186 .consumer_supplies = omap4_panda_vmmc5_supply,
189 static struct fixed_voltage_config panda_vwlan = {
190 .supply_name = "vwl1271",
191 .microvolts = 1800000, /* 1.8V */
192 .gpio = GPIO_WIFI_PMENA,
193 .startup_delay = 70000, /* 70msec */
195 .enabled_at_boot = 0,
196 .init_data = &panda_vmmc5,
199 static struct platform_device omap_vwlan_device = {
200 .name = "reg-fixed-voltage",
203 .platform_data = &panda_vwlan,
207 struct wl12xx_platform_data omap_panda_wlan_data __initdata = {
208 .irq = OMAP_GPIO_IRQ(GPIO_WIFI_IRQ),
209 /* PANDA ref clock is 38.4 MHz */
210 .board_ref_clock = 2,
213 static int omap4_twl6030_hsmmc_late_init(struct device *dev)
216 struct platform_device *pdev = container_of(dev,
217 struct platform_device, dev);
218 struct omap_mmc_platform_data *pdata = dev->platform_data;
221 dev_err(dev, "%s: NULL platform data\n", __func__);
224 /* Setting MMC1 Card detect Irq */
226 ret = twl6030_mmc_card_detect_config();
228 dev_err(dev, "%s: Error card detect config(%d)\n",
231 pdata->slots[0].card_detect = twl6030_mmc_card_detect;
236 static __init void omap4_twl6030_hsmmc_set_late_init(struct device *dev)
238 struct omap_mmc_platform_data *pdata;
240 /* dev can be null if CONFIG_MMC_OMAP_HS is not set */
242 pr_err("Failed omap4_twl6030_hsmmc_set_late_init\n");
245 pdata = dev->platform_data;
247 pdata->init = omap4_twl6030_hsmmc_late_init;
250 static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
252 struct omap2_hsmmc_info *c;
254 omap2_hsmmc_init(controllers);
255 for (c = controllers; c->mmc; c++)
256 omap4_twl6030_hsmmc_set_late_init(c->dev);
261 /* Panda board uses the common PMIC configuration */
262 static struct twl4030_platform_data omap4_panda_twldata;
265 * Display monitor features are burnt in their EEPROM as EDID data. The EEPROM
266 * is connected as I2C slave device, and can be accessed at address 0x50
268 static struct i2c_board_info __initdata panda_i2c_eeprom[] = {
270 I2C_BOARD_INFO("eeprom", 0x50),
274 static int __init omap4_panda_i2c_init(void)
276 omap4_pmic_get_config(&omap4_panda_twldata, TWL_COMMON_PDATA_USB,
277 TWL_COMMON_REGULATOR_VDAC |
278 TWL_COMMON_REGULATOR_VAUX2 |
279 TWL_COMMON_REGULATOR_VAUX3 |
280 TWL_COMMON_REGULATOR_VMMC |
281 TWL_COMMON_REGULATOR_VPP |
282 TWL_COMMON_REGULATOR_VANA |
283 TWL_COMMON_REGULATOR_VCXIO |
284 TWL_COMMON_REGULATOR_VUSB |
285 TWL_COMMON_REGULATOR_CLK32KG);
286 omap4_pmic_init("twl6030", &omap4_panda_twldata);
287 omap_register_i2c_bus(2, 400, NULL, 0);
289 * Bus 3 is attached to the DVI port where devices like the pico DLP
290 * projector don't work reliably with 400kHz
292 omap_register_i2c_bus(3, 100, panda_i2c_eeprom,
293 ARRAY_SIZE(panda_i2c_eeprom));
294 omap_register_i2c_bus(4, 400, NULL, 0);
298 #ifdef CONFIG_OMAP_MUX
299 static struct omap_board_mux board_mux[] __initdata = {
300 /* WLAN IRQ - GPIO 53 */
301 OMAP4_MUX(GPMC_NCS3, OMAP_MUX_MODE3 | OMAP_PIN_INPUT),
302 /* WLAN POWER ENABLE - GPIO 43 */
303 OMAP4_MUX(GPMC_A19, OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT),
304 /* WLAN SDIO: MMC5 CMD */
305 OMAP4_MUX(SDMMC5_CMD, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
306 /* WLAN SDIO: MMC5 CLK */
307 OMAP4_MUX(SDMMC5_CLK, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
308 /* WLAN SDIO: MMC5 DAT[0-3] */
309 OMAP4_MUX(SDMMC5_DAT0, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
310 OMAP4_MUX(SDMMC5_DAT1, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
311 OMAP4_MUX(SDMMC5_DAT2, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
312 OMAP4_MUX(SDMMC5_DAT3, OMAP_MUX_MODE0 | OMAP_PIN_INPUT_PULLUP),
313 /* gpio 0 - TFP410 PD */
314 OMAP4_MUX(KPD_COL1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE3),
316 OMAP4_MUX(USBB2_ULPITLL_STP, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
318 OMAP4_MUX(USBB2_ULPITLL_DIR, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
320 OMAP4_MUX(USBB2_ULPITLL_NXT, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
322 OMAP4_MUX(USBB2_ULPITLL_DAT0, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
324 OMAP4_MUX(USBB2_ULPITLL_DAT1, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
326 OMAP4_MUX(USBB2_ULPITLL_DAT2, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
328 OMAP4_MUX(USBB2_ULPITLL_DAT3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
330 OMAP4_MUX(USBB2_ULPITLL_DAT4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
332 OMAP4_MUX(USBB2_ULPITLL_DAT5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
334 OMAP4_MUX(USBB2_ULPITLL_DAT6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
336 OMAP4_MUX(USBB2_ULPITLL_DAT7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
338 OMAP4_MUX(DPM_EMU3, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
340 OMAP4_MUX(DPM_EMU4, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
342 OMAP4_MUX(DPM_EMU5, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
344 OMAP4_MUX(DPM_EMU6, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
346 OMAP4_MUX(DPM_EMU7, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
348 OMAP4_MUX(DPM_EMU8, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
350 OMAP4_MUX(DPM_EMU9, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
352 OMAP4_MUX(DPM_EMU10, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
354 OMAP4_MUX(DPM_EMU11, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
356 OMAP4_MUX(DPM_EMU12, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
358 OMAP4_MUX(DPM_EMU13, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
360 OMAP4_MUX(DPM_EMU14, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
362 OMAP4_MUX(DPM_EMU15, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
364 OMAP4_MUX(DPM_EMU16, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
366 OMAP4_MUX(DPM_EMU17, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
368 OMAP4_MUX(DPM_EMU18, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
370 OMAP4_MUX(DPM_EMU19, OMAP_PIN_OUTPUT | OMAP_MUX_MODE5),
371 { .reg_offset = OMAP_MUX_TERMINATOR },
375 #define board_mux NULL
379 #define PANDA_DVI_TFP410_POWER_DOWN_GPIO 0
381 static int omap4_panda_enable_dvi(struct omap_dss_device *dssdev)
383 gpio_set_value(dssdev->reset_gpio, 1);
387 static void omap4_panda_disable_dvi(struct omap_dss_device *dssdev)
389 gpio_set_value(dssdev->reset_gpio, 0);
392 /* Using generic display panel */
393 static struct panel_dvi_platform_data omap4_dvi_panel = {
394 .platform_enable = omap4_panda_enable_dvi,
395 .platform_disable = omap4_panda_disable_dvi,
399 struct omap_dss_device omap4_panda_dvi_device = {
400 .type = OMAP_DISPLAY_TYPE_DPI,
402 .driver_name = "dvi",
403 .data = &omap4_dvi_panel,
404 .phy.dpi.data_lines = 24,
405 .reset_gpio = PANDA_DVI_TFP410_POWER_DOWN_GPIO,
406 .channel = OMAP_DSS_CHANNEL_LCD2,
409 int __init omap4_panda_dvi_init(void)
413 /* Requesting TFP410 DVI GPIO and disabling it, at bootup */
414 r = gpio_request_one(omap4_panda_dvi_device.reset_gpio,
415 GPIOF_OUT_INIT_LOW, "DVI PD");
417 pr_err("Failed to get DVI powerdown GPIO\n");
422 static struct gpio panda_hdmi_gpios[] = {
423 { HDMI_GPIO_CT_CP_HPD, GPIOF_OUT_INIT_HIGH, "hdmi_gpio_ct_cp_hpd" },
424 { HDMI_GPIO_LS_OE, GPIOF_OUT_INIT_HIGH, "hdmi_gpio_ls_oe" },
425 { HDMI_GPIO_HPD, GPIOF_DIR_IN, "hdmi_gpio_hpd" },
428 static int omap4_panda_panel_enable_hdmi(struct omap_dss_device *dssdev)
432 status = gpio_request_array(panda_hdmi_gpios,
433 ARRAY_SIZE(panda_hdmi_gpios));
435 pr_err("Cannot request HDMI GPIOs\n");
440 static void omap4_panda_panel_disable_hdmi(struct omap_dss_device *dssdev)
442 gpio_free_array(panda_hdmi_gpios, ARRAY_SIZE(panda_hdmi_gpios));
445 static struct omap_dss_hdmi_data omap4_panda_hdmi_data = {
446 .hpd_gpio = HDMI_GPIO_HPD,
449 static struct omap_dss_device omap4_panda_hdmi_device = {
451 .driver_name = "hdmi_panel",
452 .type = OMAP_DISPLAY_TYPE_HDMI,
453 .platform_enable = omap4_panda_panel_enable_hdmi,
454 .platform_disable = omap4_panda_panel_disable_hdmi,
455 .channel = OMAP_DSS_CHANNEL_DIGIT,
456 .data = &omap4_panda_hdmi_data,
459 static struct omap_dss_device *omap4_panda_dss_devices[] = {
460 &omap4_panda_dvi_device,
461 &omap4_panda_hdmi_device,
464 static struct omap_dss_board_info omap4_panda_dss_data = {
465 .num_devices = ARRAY_SIZE(omap4_panda_dss_devices),
466 .devices = omap4_panda_dss_devices,
467 .default_device = &omap4_panda_dvi_device,
470 void omap4_panda_display_init(void)
474 r = omap4_panda_dvi_init();
476 pr_err("error initializing panda DVI\n");
478 omap_display_init(&omap4_panda_dss_data);
481 * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and
482 * later have external pull up on the HDMI I2C lines
484 if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2)
485 omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP);
489 omap_mux_init_gpio(HDMI_GPIO_LS_OE, OMAP_PIN_OUTPUT);
490 omap_mux_init_gpio(HDMI_GPIO_CT_CP_HPD, OMAP_PIN_OUTPUT);
491 omap_mux_init_gpio(HDMI_GPIO_HPD, OMAP_PIN_INPUT_PULLDOWN);
494 static void __init omap4_panda_init(void)
496 int package = OMAP_PACKAGE_CBS;
499 if (omap_rev() == OMAP4430_REV_ES1_0)
500 package = OMAP_PACKAGE_CBL;
501 omap4_mux_init(board_mux, NULL, package);
503 ret = wl12xx_set_platform_data(&omap_panda_wlan_data);
505 pr_err("error setting wl12xx data: %d\n", ret);
507 omap4_panda_i2c_init();
508 platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
509 platform_device_register(&omap_vwlan_device);
511 omap_sdrc_init(NULL, NULL);
512 omap4_twl6030_hsmmc_init(mmc);
514 usb_musb_init(&musb_board_data);
515 omap4_panda_display_init();
518 MACHINE_START(OMAP4_PANDA, "OMAP4 Panda board")
519 /* Maintainer: David Anders - Texas Instruments Inc */
520 .atag_offset = 0x100,
521 .reserve = omap_reserve,
522 .map_io = omap4_map_io,
523 .init_early = omap4430_init_early,
524 .init_irq = gic_init_irq,
525 .handle_irq = gic_handle_irq,
526 .init_machine = omap4_panda_init,
527 .timer = &omap4_timer,
528 .restart = omap_prcm_restart,