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>
55 #include "sdram-micron-mt46h32m32lf-6.h"
57 #include "common-board-devices.h"
59 #define OVERO_GPIO_BT_XGATE 15
60 #define OVERO_GPIO_W2W_NRESET 16
61 #define OVERO_GPIO_PENDOWN 114
62 #define OVERO_GPIO_BT_NRESET 164
63 #define OVERO_GPIO_USBH_CPEN 168
64 #define OVERO_GPIO_USBH_NRESET 183
66 #define OVERO_SMSC911X_CS 5
67 #define OVERO_SMSC911X_GPIO 176
68 #define OVERO_SMSC911X2_CS 4
69 #define OVERO_SMSC911X2_GPIO 65
71 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
72 defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
74 /* fixed regulator for ads7846 */
75 static struct regulator_consumer_supply ads7846_supply[] = {
76 REGULATOR_SUPPLY("vcc", "spi1.0"),
79 static struct regulator_init_data vads7846_regulator = {
81 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
83 .num_consumer_supplies = ARRAY_SIZE(ads7846_supply),
84 .consumer_supplies = ads7846_supply,
87 static struct fixed_voltage_config vads7846 = {
88 .supply_name = "vads7846",
89 .microvolts = 3300000, /* 3.3V */
92 .init_data = &vads7846_regulator,
95 static struct platform_device vads7846_device = {
96 .name = "reg-fixed-voltage",
99 .platform_data = &vads7846,
103 static void __init overo_ads7846_init(void)
105 omap_ads7846_init(1, OVERO_GPIO_PENDOWN, 0, NULL);
106 platform_device_register(&vads7846_device);
110 static inline void __init overo_ads7846_init(void) { return; }
113 #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
115 #include <linux/smsc911x.h>
116 #include "gpmc-smsc911x.h"
118 static struct omap_smsc911x_platform_data smsc911x_cfg = {
120 .cs = OVERO_SMSC911X_CS,
121 .gpio_irq = OVERO_SMSC911X_GPIO,
122 .gpio_reset = -EINVAL,
123 .flags = SMSC911X_USE_32BIT,
126 static struct omap_smsc911x_platform_data smsc911x2_cfg = {
128 .cs = OVERO_SMSC911X2_CS,
129 .gpio_irq = OVERO_SMSC911X2_GPIO,
130 .gpio_reset = -EINVAL,
131 .flags = SMSC911X_USE_32BIT,
134 static void __init overo_init_smsc911x(void)
136 gpmc_smsc911x_init(&smsc911x_cfg);
137 gpmc_smsc911x_init(&smsc911x2_cfg);
141 static inline void __init overo_init_smsc911x(void) { return; }
145 static int lcd_enabled;
146 static int dvi_enabled;
148 #define OVERO_GPIO_LCD_EN 144
149 #define OVERO_GPIO_LCD_BL 145
151 static struct gpio overo_dss_gpios[] __initdata = {
152 { OVERO_GPIO_LCD_EN, GPIOF_OUT_INIT_HIGH, "OVERO_GPIO_LCD_EN" },
153 { OVERO_GPIO_LCD_BL, GPIOF_OUT_INIT_HIGH, "OVERO_GPIO_LCD_BL" },
156 static void __init overo_display_init(void)
158 if (gpio_request_array(overo_dss_gpios, ARRAY_SIZE(overo_dss_gpios))) {
159 printk(KERN_ERR "could not obtain DSS control GPIOs\n");
163 gpio_export(OVERO_GPIO_LCD_EN, 0);
164 gpio_export(OVERO_GPIO_LCD_BL, 0);
167 static struct tfp410_platform_data dvi_panel = {
169 .power_down_gpio = -1,
172 static struct omap_dss_device overo_dvi_device = {
174 .type = OMAP_DISPLAY_TYPE_DPI,
175 .driver_name = "tfp410",
177 .phy.dpi.data_lines = 24,
180 static struct omap_dss_device overo_tv_device = {
182 .driver_name = "venc",
183 .type = OMAP_DISPLAY_TYPE_VENC,
184 .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
187 static int overo_panel_enable_lcd(struct omap_dss_device *dssdev)
190 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
194 gpio_set_value(OVERO_GPIO_LCD_EN, 1);
195 gpio_set_value(OVERO_GPIO_LCD_BL, 1);
200 static void overo_panel_disable_lcd(struct omap_dss_device *dssdev)
202 gpio_set_value(OVERO_GPIO_LCD_EN, 0);
203 gpio_set_value(OVERO_GPIO_LCD_BL, 0);
207 static struct panel_generic_dpi_data lcd43_panel = {
208 .name = "samsung_lte430wq_f0c",
209 .platform_enable = overo_panel_enable_lcd,
210 .platform_disable = overo_panel_disable_lcd,
213 static struct omap_dss_device overo_lcd43_device = {
215 .type = OMAP_DISPLAY_TYPE_DPI,
216 .driver_name = "generic_dpi_panel",
217 .data = &lcd43_panel,
218 .phy.dpi.data_lines = 24,
221 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
222 defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
223 static struct omap_dss_device overo_lcd35_device = {
224 .type = OMAP_DISPLAY_TYPE_DPI,
226 .driver_name = "lgphilips_lb035q02_panel",
227 .phy.dpi.data_lines = 24,
228 .platform_enable = overo_panel_enable_lcd,
229 .platform_disable = overo_panel_disable_lcd,
233 static struct omap_dss_device *overo_dss_devices[] = {
236 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
237 defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
243 static struct omap_dss_board_info overo_dss_data = {
244 .num_devices = ARRAY_SIZE(overo_dss_devices),
245 .devices = overo_dss_devices,
246 .default_device = &overo_dvi_device,
249 static struct mtd_partition overo_nand_partitions[] = {
252 .offset = 0, /* Offset = 0x00000 */
253 .size = 4 * NAND_BLOCK_SIZE,
254 .mask_flags = MTD_WRITEABLE
258 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
259 .size = 14 * NAND_BLOCK_SIZE,
262 .name = "uboot environment",
263 .offset = MTDPART_OFS_APPEND, /* Offset = 0x240000 */
264 .size = 2 * NAND_BLOCK_SIZE,
268 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
269 .size = 32 * NAND_BLOCK_SIZE,
273 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
274 .size = MTDPART_SIZ_FULL,
278 static struct omap2_hsmmc_info mmc[] = {
281 .caps = MMC_CAP_4_BIT_DATA,
287 .caps = MMC_CAP_4_BIT_DATA,
291 .ocr_mask = 0x00100000, /* 3.3V */
296 static struct regulator_consumer_supply overo_vmmc1_supply[] = {
297 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
300 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
301 #include <linux/leds.h>
303 static struct gpio_led gpio_leds[] = {
305 .name = "overo:red:gpio21",
306 .default_trigger = "heartbeat",
311 .name = "overo:blue:gpio22",
312 .default_trigger = "none",
317 .name = "overo:blue:COM",
318 .default_trigger = "mmc0",
319 .gpio = -EINVAL, /* gets replaced */
324 static struct gpio_led_platform_data gpio_leds_pdata = {
326 .num_leds = ARRAY_SIZE(gpio_leds),
329 static struct platform_device gpio_leds_device = {
333 .platform_data = &gpio_leds_pdata,
337 static void __init overo_init_led(void)
339 platform_device_register(&gpio_leds_device);
343 static inline void __init overo_init_led(void) { return; }
346 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
347 #include <linux/input.h>
348 #include <linux/gpio_keys.h>
350 static struct gpio_keys_button gpio_buttons[] = {
365 static struct gpio_keys_platform_data gpio_keys_pdata = {
366 .buttons = gpio_buttons,
367 .nbuttons = ARRAY_SIZE(gpio_buttons),
370 static struct platform_device gpio_keys_device = {
374 .platform_data = &gpio_keys_pdata,
378 static void __init overo_init_keys(void)
380 platform_device_register(&gpio_keys_device);
384 static inline void __init overo_init_keys(void) { return; }
387 static int overo_twl_gpio_setup(struct device *dev,
388 unsigned gpio, unsigned ngpio)
390 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
391 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
392 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
398 static struct twl4030_gpio_platform_data overo_gpio_data = {
400 .setup = overo_twl_gpio_setup,
403 static struct regulator_init_data overo_vmmc1 = {
407 .valid_modes_mask = REGULATOR_MODE_NORMAL
408 | REGULATOR_MODE_STANDBY,
409 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
410 | REGULATOR_CHANGE_MODE
411 | REGULATOR_CHANGE_STATUS,
413 .num_consumer_supplies = ARRAY_SIZE(overo_vmmc1_supply),
414 .consumer_supplies = overo_vmmc1_supply,
417 static struct twl4030_platform_data overo_twldata = {
418 .gpio = &overo_gpio_data,
419 .vmmc1 = &overo_vmmc1,
422 static int __init overo_i2c_init(void)
424 omap3_pmic_get_config(&overo_twldata,
425 TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
426 TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
428 overo_twldata.vpll2->constraints.name = "VDVI";
430 omap3_pmic_init("tps65950", &overo_twldata);
431 /* i2c2 pins are used for gpio */
432 omap_register_i2c_bus(3, 400, NULL, 0);
436 static struct spi_board_info overo_spi_board_info[] __initdata = {
437 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
438 defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
440 .modalias = "lgphilips_lb035q02_panel-spi",
443 .max_speed_hz = 500000,
449 static int __init overo_spi_init(void)
451 overo_ads7846_init();
452 spi_register_board_info(overo_spi_board_info,
453 ARRAY_SIZE(overo_spi_board_info));
457 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
458 .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
459 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
460 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
462 .reset_gpio_port[0] = -EINVAL,
463 .reset_gpio_port[1] = OVERO_GPIO_USBH_NRESET,
464 .reset_gpio_port[2] = -EINVAL
467 #ifdef CONFIG_OMAP_MUX
468 static struct omap_board_mux board_mux[] __initdata = {
469 { .reg_offset = OMAP_MUX_TERMINATOR },
473 static struct gpio overo_bt_gpios[] __initdata = {
474 { OVERO_GPIO_BT_XGATE, GPIOF_OUT_INIT_LOW, "lcd enable" },
475 { OVERO_GPIO_BT_NRESET, GPIOF_OUT_INIT_HIGH, "lcd bl enable" },
478 static struct regulator_consumer_supply dummy_supplies[] = {
479 REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
480 REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
481 REGULATOR_SUPPLY("vddvario", "smsc911x.1"),
482 REGULATOR_SUPPLY("vdd33a", "smsc911x.1"),
485 static void __init overo_init(void)
489 regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
490 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
492 omap_hsmmc_init(mmc);
493 omap_display_init(&overo_dss_data);
495 omap_sdrc_init(mt46h32m32lf6_sdrc_params,
496 mt46h32m32lf6_sdrc_params);
497 omap_nand_flash_init(0, overo_nand_partitions,
498 ARRAY_SIZE(overo_nand_partitions));
500 usbhs_init(&usbhs_bdata);
502 overo_init_smsc911x();
503 overo_display_init();
506 omap_twl4030_audio_init("overo");
508 /* Ensure SDRC pins are mux'd for self-refresh */
509 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
510 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
512 ret = gpio_request_one(OVERO_GPIO_W2W_NRESET, GPIOF_OUT_INIT_HIGH,
513 "OVERO_GPIO_W2W_NRESET");
515 gpio_export(OVERO_GPIO_W2W_NRESET, 0);
516 gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
518 gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
520 pr_err("could not obtain gpio for OVERO_GPIO_W2W_NRESET\n");
523 ret = gpio_request_array(overo_bt_gpios, ARRAY_SIZE(overo_bt_gpios));
525 pr_err("%s: could not obtain BT gpios\n", __func__);
527 gpio_export(OVERO_GPIO_BT_XGATE, 0);
528 gpio_export(OVERO_GPIO_BT_NRESET, 0);
529 gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
531 gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
534 ret = gpio_request_one(OVERO_GPIO_USBH_CPEN, GPIOF_OUT_INIT_HIGH,
535 "OVERO_GPIO_USBH_CPEN");
537 gpio_export(OVERO_GPIO_USBH_CPEN, 0);
539 pr_err("could not obtain gpio for OVERO_GPIO_USBH_CPEN\n");
542 MACHINE_START(OVERO, "Gumstix Overo")
543 .atag_offset = 0x100,
544 .reserve = omap_reserve,
545 .map_io = omap3_map_io,
546 .init_early = omap35xx_init_early,
547 .init_irq = omap3_init_irq,
548 .handle_irq = omap3_intc_handle_irq,
549 .init_machine = overo_init,
550 .init_late = omap35xx_init_late,
551 .timer = &omap3_timer,
552 .restart = omap_prcm_restart,