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[~shefty/rdma-dev.git] / arch / arm / mach-omap2 / board-omap4panda.c
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_HPD 60 /* Hot plug pin for HDMI */
55 #define HDMI_GPIO_LS_OE 41 /* Level shifter for HDMI */
56
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 };
66
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 };
79
80 static struct gpio_led_platform_data gpio_led_info = {
81         .leds           = gpio_leds,
82         .num_leds       = ARRAY_SIZE(gpio_leds),
83 };
84
85 static struct platform_device leds_gpio = {
86         .name   = "leds-gpio",
87         .id     = -1,
88         .dev    = {
89                 .platform_data  = &gpio_led_info,
90         },
91 };
92
93 static struct platform_device *panda_devices[] __initdata = {
94         &leds_gpio,
95         &wl1271_device,
96 };
97
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 };
107
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 };
112
113 static void __init omap4_ehci_init(void)
114 {
115         int ret;
116         struct clk *phy_ref_clk;
117
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);
126
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         }
134
135         gpio_export(GPIO_HUB_POWER, 0);
136         gpio_export(GPIO_HUB_NRESET, 0);
137         gpio_set_value(GPIO_HUB_NRESET, 1);
138
139         usbhs_init(&usbhs_bdata);
140
141         /* enable power to hub */
142         gpio_set_value(GPIO_HUB_POWER, 1);
143 }
144
145 static struct omap_musb_board_data musb_board_data = {
146         .interface_type         = MUSB_INTERFACE_UTMI,
147         .mode                   = MUSB_OTG,
148         .power                  = 100,
149 };
150
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 };
169
170 static struct regulator_consumer_supply omap4_panda_vmmc5_supply[] = {
171         REGULATOR_SUPPLY("vmmc", "omap_hsmmc.4"),
172 };
173
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 };
181
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 };
191
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 };
199
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 };
205
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;
212
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 }
228
229 static __init void omap4_twl6030_hsmmc_set_late_init(struct device *dev)
230 {
231         struct omap_mmc_platform_data *pdata;
232
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;
239
240         pdata->init =   omap4_twl6030_hsmmc_late_init;
241 }
242
243 static int __init omap4_twl6030_hsmmc_init(struct omap2_hsmmc_info *controllers)
244 {
245         struct omap2_hsmmc_info *c;
246
247         omap2_hsmmc_init(controllers);
248         for (c = controllers; c->mmc; c++)
249                 omap4_twl6030_hsmmc_set_late_init(c->dev);
250
251         return 0;
252 }
253
254 /* Panda board uses the common PMIC configuration */
255 static struct twl4030_platform_data omap4_panda_twldata;
256
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 };
266
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 }
290
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 };
366
367 #else
368 #define board_mux       NULL
369 #endif
370
371 /* Display DVI */
372 #define PANDA_DVI_TFP410_POWER_DOWN_GPIO        0
373
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 }
379
380 static void omap4_panda_disable_dvi(struct omap_dss_device *dssdev)
381 {
382         gpio_set_value(dssdev->reset_gpio, 0);
383 }
384
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 };
391
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 };
401
402 int __init omap4_panda_dvi_init(void)
403 {
404         int r;
405
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");
411
412         return r;
413 }
414
415 static struct gpio panda_hdmi_gpios[] = {
416         { HDMI_GPIO_HPD,        GPIOF_OUT_INIT_HIGH, "hdmi_gpio_hpd"   },
417         { HDMI_GPIO_LS_OE,      GPIOF_OUT_INIT_HIGH, "hdmi_gpio_ls_oe" },
418 };
419
420 static int omap4_panda_panel_enable_hdmi(struct omap_dss_device *dssdev)
421 {
422         int status;
423
424         status = gpio_request_array(panda_hdmi_gpios,
425                                     ARRAY_SIZE(panda_hdmi_gpios));
426         if (status)
427                 pr_err("Cannot request HDMI GPIOs\n");
428
429         return status;
430 }
431
432 static void omap4_panda_panel_disable_hdmi(struct omap_dss_device *dssdev)
433 {
434         gpio_free(HDMI_GPIO_LS_OE);
435         gpio_free(HDMI_GPIO_HPD);
436 }
437
438 static struct omap_dss_device  omap4_panda_hdmi_device = {
439         .name = "hdmi",
440         .driver_name = "hdmi_panel",
441         .type = OMAP_DISPLAY_TYPE_HDMI,
442         .platform_enable = omap4_panda_panel_enable_hdmi,
443         .platform_disable = omap4_panda_panel_disable_hdmi,
444         .channel = OMAP_DSS_CHANNEL_DIGIT,
445 };
446
447 static struct omap_dss_device *omap4_panda_dss_devices[] = {
448         &omap4_panda_dvi_device,
449         &omap4_panda_hdmi_device,
450 };
451
452 static struct omap_dss_board_info omap4_panda_dss_data = {
453         .num_devices    = ARRAY_SIZE(omap4_panda_dss_devices),
454         .devices        = omap4_panda_dss_devices,
455         .default_device = &omap4_panda_dvi_device,
456 };
457
458 void omap4_panda_display_init(void)
459 {
460         int r;
461
462         r = omap4_panda_dvi_init();
463         if (r)
464                 pr_err("error initializing panda DVI\n");
465
466         omap_display_init(&omap4_panda_dss_data);
467
468         /*
469          * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and
470          * later have external pull up on the HDMI I2C lines
471          */
472         if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2)
473                 omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP);
474         else
475                 omap_hdmi_init(0);
476 }
477
478 static void __init omap4_panda_init(void)
479 {
480         int package = OMAP_PACKAGE_CBS;
481
482         if (omap_rev() == OMAP4430_REV_ES1_0)
483                 package = OMAP_PACKAGE_CBL;
484         omap4_mux_init(board_mux, NULL, package);
485
486         if (wl12xx_set_platform_data(&omap_panda_wlan_data))
487                 pr_err("error setting wl12xx data\n");
488
489         omap4_panda_i2c_init();
490         platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
491         platform_device_register(&omap_vwlan_device);
492         omap_serial_init();
493         omap_sdrc_init(NULL, NULL);
494         omap4_twl6030_hsmmc_init(mmc);
495         omap4_ehci_init();
496         usb_musb_init(&musb_board_data);
497         omap4_panda_display_init();
498 }
499
500 MACHINE_START(OMAP4_PANDA, "OMAP4 Panda board")
501         /* Maintainer: David Anders - Texas Instruments Inc */
502         .atag_offset    = 0x100,
503         .reserve        = omap_reserve,
504         .map_io         = omap4_map_io,
505         .init_early     = omap4430_init_early,
506         .init_irq       = gic_init_irq,
507         .handle_irq     = gic_handle_irq,
508         .init_machine   = omap4_panda_init,
509         .timer          = &omap4_timer,
510         .restart        = omap_prcm_restart,
511 MACHINE_END