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>
55 #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
= omap3xxx_restart
,