2 * board-overo.c (Gumstix Overo)
4 * Initial code: Steve Sakoman <steve@sakoman.com>
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * version 2 as published by the Free Software Foundation.
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
22 #include <linux/clk.h>
23 #include <linux/delay.h>
24 #include <linux/err.h>
25 #include <linux/init.h>
27 #include <linux/gpio.h>
28 #include <linux/kernel.h>
29 #include <linux/platform_device.h>
30 #include <linux/i2c/twl.h>
31 #include <linux/regulator/machine.h>
32 #include <linux/regulator/fixed.h>
33 #include <linux/spi/spi.h>
35 #include <linux/mtd/mtd.h>
36 #include <linux/mtd/nand.h>
37 #include <linux/mtd/partitions.h>
38 #include <linux/mmc/host.h>
40 #include <linux/platform_data/mtd-nand-omap2.h>
41 #include <linux/platform_data/spi-omap2-mcspi.h>
43 #include <asm/mach-types.h>
44 #include <asm/mach/arch.h>
45 #include <asm/mach/flash.h>
46 #include <asm/mach/map.h>
49 #include <video/omapdss.h>
50 #include <video/omap-panel-generic-dpi.h>
51 #include <video/omap-panel-tfp410.h>
52 #include <plat/gpmc.h>
56 #include "sdram-micron-mt46h32m32lf-6.h"
58 #include "common-board-devices.h"
60 #define OVERO_GPIO_BT_XGATE 15
61 #define OVERO_GPIO_W2W_NRESET 16
62 #define OVERO_GPIO_PENDOWN 114
63 #define OVERO_GPIO_BT_NRESET 164
64 #define OVERO_GPIO_USBH_CPEN 168
65 #define OVERO_GPIO_USBH_NRESET 183
67 #define OVERO_SMSC911X_CS 5
68 #define OVERO_SMSC911X_GPIO 176
69 #define OVERO_SMSC911X2_CS 4
70 #define OVERO_SMSC911X2_GPIO 65
72 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
73 defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
75 /* fixed regulator for ads7846 */
76 static struct regulator_consumer_supply ads7846_supply[] = {
77 REGULATOR_SUPPLY("vcc", "spi1.0"),
80 static struct regulator_init_data vads7846_regulator = {
82 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
84 .num_consumer_supplies = ARRAY_SIZE(ads7846_supply),
85 .consumer_supplies = ads7846_supply,
88 static struct fixed_voltage_config vads7846 = {
89 .supply_name = "vads7846",
90 .microvolts = 3300000, /* 3.3V */
93 .init_data = &vads7846_regulator,
96 static struct platform_device vads7846_device = {
97 .name = "reg-fixed-voltage",
100 .platform_data = &vads7846,
104 static void __init overo_ads7846_init(void)
106 omap_ads7846_init(1, OVERO_GPIO_PENDOWN, 0, NULL);
107 platform_device_register(&vads7846_device);
111 static inline void __init overo_ads7846_init(void) { return; }
114 #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
116 #include <linux/smsc911x.h>
117 #include "gpmc-smsc911x.h"
119 static struct omap_smsc911x_platform_data smsc911x_cfg = {
121 .cs = OVERO_SMSC911X_CS,
122 .gpio_irq = OVERO_SMSC911X_GPIO,
123 .gpio_reset = -EINVAL,
124 .flags = SMSC911X_USE_32BIT,
127 static struct omap_smsc911x_platform_data smsc911x2_cfg = {
129 .cs = OVERO_SMSC911X2_CS,
130 .gpio_irq = OVERO_SMSC911X2_GPIO,
131 .gpio_reset = -EINVAL,
132 .flags = SMSC911X_USE_32BIT,
135 static void __init overo_init_smsc911x(void)
137 gpmc_smsc911x_init(&smsc911x_cfg);
138 gpmc_smsc911x_init(&smsc911x2_cfg);
142 static inline void __init overo_init_smsc911x(void) { return; }
146 static int lcd_enabled;
147 static int dvi_enabled;
149 #define OVERO_GPIO_LCD_EN 144
150 #define OVERO_GPIO_LCD_BL 145
152 static struct gpio overo_dss_gpios[] __initdata = {
153 { OVERO_GPIO_LCD_EN, GPIOF_OUT_INIT_HIGH, "OVERO_GPIO_LCD_EN" },
154 { OVERO_GPIO_LCD_BL, GPIOF_OUT_INIT_HIGH, "OVERO_GPIO_LCD_BL" },
157 static void __init overo_display_init(void)
159 if (gpio_request_array(overo_dss_gpios, ARRAY_SIZE(overo_dss_gpios))) {
160 printk(KERN_ERR "could not obtain DSS control GPIOs\n");
164 gpio_export(OVERO_GPIO_LCD_EN, 0);
165 gpio_export(OVERO_GPIO_LCD_BL, 0);
168 static struct tfp410_platform_data dvi_panel = {
170 .power_down_gpio = -1,
173 static struct omap_dss_device overo_dvi_device = {
175 .type = OMAP_DISPLAY_TYPE_DPI,
176 .driver_name = "tfp410",
178 .phy.dpi.data_lines = 24,
181 static struct omap_dss_device overo_tv_device = {
183 .driver_name = "venc",
184 .type = OMAP_DISPLAY_TYPE_VENC,
185 .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
188 static int overo_panel_enable_lcd(struct omap_dss_device *dssdev)
191 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
195 gpio_set_value(OVERO_GPIO_LCD_EN, 1);
196 gpio_set_value(OVERO_GPIO_LCD_BL, 1);
201 static void overo_panel_disable_lcd(struct omap_dss_device *dssdev)
203 gpio_set_value(OVERO_GPIO_LCD_EN, 0);
204 gpio_set_value(OVERO_GPIO_LCD_BL, 0);
208 static struct panel_generic_dpi_data lcd43_panel = {
209 .name = "samsung_lte430wq_f0c",
210 .platform_enable = overo_panel_enable_lcd,
211 .platform_disable = overo_panel_disable_lcd,
214 static struct omap_dss_device overo_lcd43_device = {
216 .type = OMAP_DISPLAY_TYPE_DPI,
217 .driver_name = "generic_dpi_panel",
218 .data = &lcd43_panel,
219 .phy.dpi.data_lines = 24,
222 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
223 defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
224 static struct omap_dss_device overo_lcd35_device = {
225 .type = OMAP_DISPLAY_TYPE_DPI,
227 .driver_name = "lgphilips_lb035q02_panel",
228 .phy.dpi.data_lines = 24,
229 .platform_enable = overo_panel_enable_lcd,
230 .platform_disable = overo_panel_disable_lcd,
234 static struct omap_dss_device *overo_dss_devices[] = {
237 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
238 defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
244 static struct omap_dss_board_info overo_dss_data = {
245 .num_devices = ARRAY_SIZE(overo_dss_devices),
246 .devices = overo_dss_devices,
247 .default_device = &overo_dvi_device,
250 static struct mtd_partition overo_nand_partitions[] = {
253 .offset = 0, /* Offset = 0x00000 */
254 .size = 4 * NAND_BLOCK_SIZE,
255 .mask_flags = MTD_WRITEABLE
259 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
260 .size = 14 * NAND_BLOCK_SIZE,
263 .name = "uboot environment",
264 .offset = MTDPART_OFS_APPEND, /* Offset = 0x240000 */
265 .size = 2 * NAND_BLOCK_SIZE,
269 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
270 .size = 32 * NAND_BLOCK_SIZE,
274 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
275 .size = MTDPART_SIZ_FULL,
279 static struct omap2_hsmmc_info mmc[] = {
282 .caps = MMC_CAP_4_BIT_DATA,
288 .caps = MMC_CAP_4_BIT_DATA,
292 .ocr_mask = 0x00100000, /* 3.3V */
297 static struct regulator_consumer_supply overo_vmmc1_supply[] = {
298 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
301 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
302 #include <linux/leds.h>
304 static struct gpio_led gpio_leds[] = {
306 .name = "overo:red:gpio21",
307 .default_trigger = "heartbeat",
312 .name = "overo:blue:gpio22",
313 .default_trigger = "none",
318 .name = "overo:blue:COM",
319 .default_trigger = "mmc0",
320 .gpio = -EINVAL, /* gets replaced */
325 static struct gpio_led_platform_data gpio_leds_pdata = {
327 .num_leds = ARRAY_SIZE(gpio_leds),
330 static struct platform_device gpio_leds_device = {
334 .platform_data = &gpio_leds_pdata,
338 static void __init overo_init_led(void)
340 platform_device_register(&gpio_leds_device);
344 static inline void __init overo_init_led(void) { return; }
347 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
348 #include <linux/input.h>
349 #include <linux/gpio_keys.h>
351 static struct gpio_keys_button gpio_buttons[] = {
366 static struct gpio_keys_platform_data gpio_keys_pdata = {
367 .buttons = gpio_buttons,
368 .nbuttons = ARRAY_SIZE(gpio_buttons),
371 static struct platform_device gpio_keys_device = {
375 .platform_data = &gpio_keys_pdata,
379 static void __init overo_init_keys(void)
381 platform_device_register(&gpio_keys_device);
385 static inline void __init overo_init_keys(void) { return; }
388 static int overo_twl_gpio_setup(struct device *dev,
389 unsigned gpio, unsigned ngpio)
391 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
392 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
393 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
399 static struct twl4030_gpio_platform_data overo_gpio_data = {
401 .setup = overo_twl_gpio_setup,
404 static struct regulator_init_data overo_vmmc1 = {
408 .valid_modes_mask = REGULATOR_MODE_NORMAL
409 | REGULATOR_MODE_STANDBY,
410 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
411 | REGULATOR_CHANGE_MODE
412 | REGULATOR_CHANGE_STATUS,
414 .num_consumer_supplies = ARRAY_SIZE(overo_vmmc1_supply),
415 .consumer_supplies = overo_vmmc1_supply,
418 static struct twl4030_platform_data overo_twldata = {
419 .gpio = &overo_gpio_data,
420 .vmmc1 = &overo_vmmc1,
423 static int __init overo_i2c_init(void)
425 omap3_pmic_get_config(&overo_twldata,
426 TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
427 TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
429 overo_twldata.vpll2->constraints.name = "VDVI";
431 omap3_pmic_init("tps65950", &overo_twldata);
432 /* i2c2 pins are used for gpio */
433 omap_register_i2c_bus(3, 400, NULL, 0);
437 static struct spi_board_info overo_spi_board_info[] __initdata = {
438 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
439 defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
441 .modalias = "lgphilips_lb035q02_panel-spi",
444 .max_speed_hz = 500000,
450 static int __init overo_spi_init(void)
452 overo_ads7846_init();
453 spi_register_board_info(overo_spi_board_info,
454 ARRAY_SIZE(overo_spi_board_info));
458 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
459 .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
460 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
461 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
463 .reset_gpio_port[0] = -EINVAL,
464 .reset_gpio_port[1] = OVERO_GPIO_USBH_NRESET,
465 .reset_gpio_port[2] = -EINVAL
468 #ifdef CONFIG_OMAP_MUX
469 static struct omap_board_mux board_mux[] __initdata = {
470 { .reg_offset = OMAP_MUX_TERMINATOR },
474 static struct gpio overo_bt_gpios[] __initdata = {
475 { OVERO_GPIO_BT_XGATE, GPIOF_OUT_INIT_LOW, "lcd enable" },
476 { OVERO_GPIO_BT_NRESET, GPIOF_OUT_INIT_HIGH, "lcd bl enable" },
479 static struct regulator_consumer_supply dummy_supplies[] = {
480 REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
481 REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
482 REGULATOR_SUPPLY("vddvario", "smsc911x.1"),
483 REGULATOR_SUPPLY("vdd33a", "smsc911x.1"),
486 static void __init overo_init(void)
490 regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
491 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
493 omap_hsmmc_init(mmc);
494 omap_display_init(&overo_dss_data);
496 omap_sdrc_init(mt46h32m32lf6_sdrc_params,
497 mt46h32m32lf6_sdrc_params);
498 omap_nand_flash_init(0, overo_nand_partitions,
499 ARRAY_SIZE(overo_nand_partitions));
501 usbhs_init(&usbhs_bdata);
503 overo_init_smsc911x();
504 overo_display_init();
507 omap_twl4030_audio_init("overo");
509 /* Ensure SDRC pins are mux'd for self-refresh */
510 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
511 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
513 ret = gpio_request_one(OVERO_GPIO_W2W_NRESET, GPIOF_OUT_INIT_HIGH,
514 "OVERO_GPIO_W2W_NRESET");
516 gpio_export(OVERO_GPIO_W2W_NRESET, 0);
517 gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
519 gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
521 pr_err("could not obtain gpio for OVERO_GPIO_W2W_NRESET\n");
524 ret = gpio_request_array(overo_bt_gpios, ARRAY_SIZE(overo_bt_gpios));
526 pr_err("%s: could not obtain BT gpios\n", __func__);
528 gpio_export(OVERO_GPIO_BT_XGATE, 0);
529 gpio_export(OVERO_GPIO_BT_NRESET, 0);
530 gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
532 gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
535 ret = gpio_request_one(OVERO_GPIO_USBH_CPEN, GPIOF_OUT_INIT_HIGH,
536 "OVERO_GPIO_USBH_CPEN");
538 gpio_export(OVERO_GPIO_USBH_CPEN, 0);
540 pr_err("could not obtain gpio for OVERO_GPIO_USBH_CPEN\n");
543 MACHINE_START(OVERO, "Gumstix Overo")
544 .atag_offset = 0x100,
545 .reserve = omap_reserve,
546 .map_io = omap3_map_io,
547 .init_early = omap35xx_init_early,
548 .init_irq = omap3_init_irq,
549 .handle_irq = omap3_intc_handle_irq,
550 .init_machine = overo_init,
551 .init_late = omap35xx_init_late,
552 .timer = &omap3_timer,
553 .restart = omap_prcm_restart,