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>
48 #include <video/omapdss.h>
49 #include <video/omap-panel-generic-dpi.h>
50 #include <video/omap-panel-tfp410.h>
51 #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
,