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>
56 #include "sdram-micron-mt46h32m32lf-6.h"
58 #include "board-flash.h"
59 #include "common-board-devices.h"
63 #define OVERO_GPIO_BT_XGATE 15
64 #define OVERO_GPIO_W2W_NRESET 16
65 #define OVERO_GPIO_PENDOWN 114
66 #define OVERO_GPIO_BT_NRESET 164
67 #define OVERO_GPIO_USBH_CPEN 168
68 #define OVERO_GPIO_USBH_NRESET 183
70 #define OVERO_SMSC911X_CS 5
71 #define OVERO_SMSC911X_GPIO 176
72 #define OVERO_SMSC911X2_CS 4
73 #define OVERO_SMSC911X2_GPIO 65
75 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
76 defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
78 /* fixed regulator for ads7846 */
79 static struct regulator_consumer_supply ads7846_supply[] = {
80 REGULATOR_SUPPLY("vcc", "spi1.0"),
83 static struct regulator_init_data vads7846_regulator = {
85 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
87 .num_consumer_supplies = ARRAY_SIZE(ads7846_supply),
88 .consumer_supplies = ads7846_supply,
91 static struct fixed_voltage_config vads7846 = {
92 .supply_name = "vads7846",
93 .microvolts = 3300000, /* 3.3V */
96 .init_data = &vads7846_regulator,
99 static struct platform_device vads7846_device = {
100 .name = "reg-fixed-voltage",
103 .platform_data = &vads7846,
107 static void __init overo_ads7846_init(void)
109 omap_ads7846_init(1, OVERO_GPIO_PENDOWN, 0, NULL);
110 platform_device_register(&vads7846_device);
114 static inline void __init overo_ads7846_init(void) { return; }
117 #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
119 #include <linux/smsc911x.h>
120 #include "gpmc-smsc911x.h"
122 static struct omap_smsc911x_platform_data smsc911x_cfg = {
124 .cs = OVERO_SMSC911X_CS,
125 .gpio_irq = OVERO_SMSC911X_GPIO,
126 .gpio_reset = -EINVAL,
127 .flags = SMSC911X_USE_32BIT,
130 static struct omap_smsc911x_platform_data smsc911x2_cfg = {
132 .cs = OVERO_SMSC911X2_CS,
133 .gpio_irq = OVERO_SMSC911X2_GPIO,
134 .gpio_reset = -EINVAL,
135 .flags = SMSC911X_USE_32BIT,
138 static void __init overo_init_smsc911x(void)
140 gpmc_smsc911x_init(&smsc911x_cfg);
141 gpmc_smsc911x_init(&smsc911x2_cfg);
145 static inline void __init overo_init_smsc911x(void) { return; }
149 static int lcd_enabled;
150 static int dvi_enabled;
152 #define OVERO_GPIO_LCD_EN 144
153 #define OVERO_GPIO_LCD_BL 145
155 static struct gpio overo_dss_gpios[] __initdata = {
156 { OVERO_GPIO_LCD_EN, GPIOF_OUT_INIT_HIGH, "OVERO_GPIO_LCD_EN" },
157 { OVERO_GPIO_LCD_BL, GPIOF_OUT_INIT_HIGH, "OVERO_GPIO_LCD_BL" },
160 static void __init overo_display_init(void)
162 if (gpio_request_array(overo_dss_gpios, ARRAY_SIZE(overo_dss_gpios))) {
163 printk(KERN_ERR "could not obtain DSS control GPIOs\n");
167 gpio_export(OVERO_GPIO_LCD_EN, 0);
168 gpio_export(OVERO_GPIO_LCD_BL, 0);
171 static struct tfp410_platform_data dvi_panel = {
173 .power_down_gpio = -1,
176 static struct omap_dss_device overo_dvi_device = {
178 .type = OMAP_DISPLAY_TYPE_DPI,
179 .driver_name = "tfp410",
181 .phy.dpi.data_lines = 24,
184 static struct omap_dss_device overo_tv_device = {
186 .driver_name = "venc",
187 .type = OMAP_DISPLAY_TYPE_VENC,
188 .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
191 static int overo_panel_enable_lcd(struct omap_dss_device *dssdev)
194 printk(KERN_ERR "cannot enable LCD, DVI is enabled\n");
198 gpio_set_value(OVERO_GPIO_LCD_EN, 1);
199 gpio_set_value(OVERO_GPIO_LCD_BL, 1);
204 static void overo_panel_disable_lcd(struct omap_dss_device *dssdev)
206 gpio_set_value(OVERO_GPIO_LCD_EN, 0);
207 gpio_set_value(OVERO_GPIO_LCD_BL, 0);
211 static struct panel_generic_dpi_data lcd43_panel = {
212 .name = "samsung_lte430wq_f0c",
213 .platform_enable = overo_panel_enable_lcd,
214 .platform_disable = overo_panel_disable_lcd,
217 static struct omap_dss_device overo_lcd43_device = {
219 .type = OMAP_DISPLAY_TYPE_DPI,
220 .driver_name = "generic_dpi_panel",
221 .data = &lcd43_panel,
222 .phy.dpi.data_lines = 24,
225 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
226 defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
227 static struct omap_dss_device overo_lcd35_device = {
228 .type = OMAP_DISPLAY_TYPE_DPI,
230 .driver_name = "lgphilips_lb035q02_panel",
231 .phy.dpi.data_lines = 24,
232 .platform_enable = overo_panel_enable_lcd,
233 .platform_disable = overo_panel_disable_lcd,
237 static struct omap_dss_device *overo_dss_devices[] = {
240 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
241 defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
247 static struct omap_dss_board_info overo_dss_data = {
248 .num_devices = ARRAY_SIZE(overo_dss_devices),
249 .devices = overo_dss_devices,
250 .default_device = &overo_dvi_device,
253 static struct mtd_partition overo_nand_partitions[] = {
256 .offset = 0, /* Offset = 0x00000 */
257 .size = 4 * NAND_BLOCK_SIZE,
258 .mask_flags = MTD_WRITEABLE
262 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
263 .size = 14 * NAND_BLOCK_SIZE,
266 .name = "uboot environment",
267 .offset = MTDPART_OFS_APPEND, /* Offset = 0x240000 */
268 .size = 2 * NAND_BLOCK_SIZE,
272 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
273 .size = 32 * NAND_BLOCK_SIZE,
277 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
278 .size = MTDPART_SIZ_FULL,
282 static struct omap2_hsmmc_info mmc[] = {
285 .caps = MMC_CAP_4_BIT_DATA,
291 .caps = MMC_CAP_4_BIT_DATA,
295 .ocr_mask = 0x00100000, /* 3.3V */
300 static struct regulator_consumer_supply overo_vmmc1_supply[] = {
301 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
304 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
305 #include <linux/leds.h>
307 static struct gpio_led gpio_leds[] = {
309 .name = "overo:red:gpio21",
310 .default_trigger = "heartbeat",
315 .name = "overo:blue:gpio22",
316 .default_trigger = "none",
321 .name = "overo:blue:COM",
322 .default_trigger = "mmc0",
323 .gpio = -EINVAL, /* gets replaced */
328 static struct gpio_led_platform_data gpio_leds_pdata = {
330 .num_leds = ARRAY_SIZE(gpio_leds),
333 static struct platform_device gpio_leds_device = {
337 .platform_data = &gpio_leds_pdata,
341 static void __init overo_init_led(void)
343 platform_device_register(&gpio_leds_device);
347 static inline void __init overo_init_led(void) { return; }
350 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
351 #include <linux/input.h>
352 #include <linux/gpio_keys.h>
354 static struct gpio_keys_button gpio_buttons[] = {
369 static struct gpio_keys_platform_data gpio_keys_pdata = {
370 .buttons = gpio_buttons,
371 .nbuttons = ARRAY_SIZE(gpio_buttons),
374 static struct platform_device gpio_keys_device = {
378 .platform_data = &gpio_keys_pdata,
382 static void __init overo_init_keys(void)
384 platform_device_register(&gpio_keys_device);
388 static inline void __init overo_init_keys(void) { return; }
391 static int overo_twl_gpio_setup(struct device *dev,
392 unsigned gpio, unsigned ngpio)
394 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
395 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
396 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
402 static struct twl4030_gpio_platform_data overo_gpio_data = {
404 .setup = overo_twl_gpio_setup,
407 static struct regulator_init_data overo_vmmc1 = {
411 .valid_modes_mask = REGULATOR_MODE_NORMAL
412 | REGULATOR_MODE_STANDBY,
413 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
414 | REGULATOR_CHANGE_MODE
415 | REGULATOR_CHANGE_STATUS,
417 .num_consumer_supplies = ARRAY_SIZE(overo_vmmc1_supply),
418 .consumer_supplies = overo_vmmc1_supply,
421 static struct twl4030_platform_data overo_twldata = {
422 .gpio = &overo_gpio_data,
423 .vmmc1 = &overo_vmmc1,
426 static int __init overo_i2c_init(void)
428 omap3_pmic_get_config(&overo_twldata,
429 TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_AUDIO,
430 TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
432 overo_twldata.vpll2->constraints.name = "VDVI";
434 omap3_pmic_init("tps65950", &overo_twldata);
435 /* i2c2 pins are used for gpio */
436 omap_register_i2c_bus(3, 400, NULL, 0);
440 static struct spi_board_info overo_spi_board_info[] __initdata = {
441 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
442 defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
444 .modalias = "lgphilips_lb035q02_panel-spi",
447 .max_speed_hz = 500000,
453 static int __init overo_spi_init(void)
455 overo_ads7846_init();
456 spi_register_board_info(overo_spi_board_info,
457 ARRAY_SIZE(overo_spi_board_info));
461 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
462 .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
463 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
464 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
466 .reset_gpio_port[0] = -EINVAL,
467 .reset_gpio_port[1] = OVERO_GPIO_USBH_NRESET,
468 .reset_gpio_port[2] = -EINVAL
471 #ifdef CONFIG_OMAP_MUX
472 static struct omap_board_mux board_mux[] __initdata = {
473 { .reg_offset = OMAP_MUX_TERMINATOR },
477 static struct gpio overo_bt_gpios[] __initdata = {
478 { OVERO_GPIO_BT_XGATE, GPIOF_OUT_INIT_LOW, "lcd enable" },
479 { OVERO_GPIO_BT_NRESET, GPIOF_OUT_INIT_HIGH, "lcd bl enable" },
482 static struct regulator_consumer_supply dummy_supplies[] = {
483 REGULATOR_SUPPLY("vddvario", "smsc911x.0"),
484 REGULATOR_SUPPLY("vdd33a", "smsc911x.0"),
485 REGULATOR_SUPPLY("vddvario", "smsc911x.1"),
486 REGULATOR_SUPPLY("vdd33a", "smsc911x.1"),
489 static void __init overo_init(void)
493 regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies));
494 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
496 omap_hsmmc_init(mmc);
497 omap_display_init(&overo_dss_data);
499 omap_sdrc_init(mt46h32m32lf6_sdrc_params,
500 mt46h32m32lf6_sdrc_params);
501 board_nand_init(overo_nand_partitions,
502 ARRAY_SIZE(overo_nand_partitions), NAND_CS, 0, NULL);
504 usbhs_init(&usbhs_bdata);
506 overo_init_smsc911x();
507 overo_display_init();
510 omap_twl4030_audio_init("overo");
512 /* Ensure SDRC pins are mux'd for self-refresh */
513 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
514 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
516 ret = gpio_request_one(OVERO_GPIO_W2W_NRESET, GPIOF_OUT_INIT_HIGH,
517 "OVERO_GPIO_W2W_NRESET");
519 gpio_export(OVERO_GPIO_W2W_NRESET, 0);
520 gpio_set_value(OVERO_GPIO_W2W_NRESET, 0);
522 gpio_set_value(OVERO_GPIO_W2W_NRESET, 1);
524 pr_err("could not obtain gpio for OVERO_GPIO_W2W_NRESET\n");
527 ret = gpio_request_array(overo_bt_gpios, ARRAY_SIZE(overo_bt_gpios));
529 pr_err("%s: could not obtain BT gpios\n", __func__);
531 gpio_export(OVERO_GPIO_BT_XGATE, 0);
532 gpio_export(OVERO_GPIO_BT_NRESET, 0);
533 gpio_set_value(OVERO_GPIO_BT_NRESET, 0);
535 gpio_set_value(OVERO_GPIO_BT_NRESET, 1);
538 ret = gpio_request_one(OVERO_GPIO_USBH_CPEN, GPIOF_OUT_INIT_HIGH,
539 "OVERO_GPIO_USBH_CPEN");
541 gpio_export(OVERO_GPIO_USBH_CPEN, 0);
543 pr_err("could not obtain gpio for OVERO_GPIO_USBH_CPEN\n");
546 MACHINE_START(OVERO, "Gumstix Overo")
547 .atag_offset = 0x100,
548 .reserve = omap_reserve,
549 .map_io = omap3_map_io,
550 .init_early = omap35xx_init_early,
551 .init_irq = omap3_init_irq,
552 .handle_irq = omap3_intc_handle_irq,
553 .init_machine = overo_init,
554 .init_late = omap35xx_init_late,
555 .timer = &omap3_timer,
556 .restart = omap_prcm_restart,