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 <asm/mach-types.h>
41 #include <asm/mach/arch.h>
42 #include <asm/mach/flash.h>
43 #include <asm/mach/map.h>
45 #include <plat/board.h>
46 #include <plat/common.h>
47 #include <video/omapdss.h>
48 #include <video/omap-panel-generic-dpi.h>
49 #include <plat/gpmc.h>
50 #include <mach/hardware.h>
51 #include <plat/nand.h>
52 #include <plat/mcspi.h>
57 #include "sdram-micron-mt46h32m32lf-6.h"
59 #include "common-board-devices.h"
61 #define OVERO_GPIO_BT_XGATE 15
62 #define OVERO_GPIO_W2W_NRESET 16
63 #define OVERO_GPIO_PENDOWN 114
64 #define OVERO_GPIO_BT_NRESET 164
65 #define OVERO_GPIO_USBH_CPEN 168
66 #define OVERO_GPIO_USBH_NRESET 183
68 #define OVERO_SMSC911X_CS 5
69 #define OVERO_SMSC911X_GPIO 176
70 #define OVERO_SMSC911X2_CS 4
71 #define OVERO_SMSC911X2_GPIO 65
73 #if defined(CONFIG_TOUCHSCREEN_ADS7846) || \
74 defined(CONFIG_TOUCHSCREEN_ADS7846_MODULE)
76 /* fixed regulator for ads7846 */
77 static struct regulator_consumer_supply ads7846_supply
[] = {
78 REGULATOR_SUPPLY("vcc", "spi1.0"),
81 static struct regulator_init_data vads7846_regulator
= {
83 .valid_ops_mask
= REGULATOR_CHANGE_STATUS
,
85 .num_consumer_supplies
= ARRAY_SIZE(ads7846_supply
),
86 .consumer_supplies
= ads7846_supply
,
89 static struct fixed_voltage_config vads7846
= {
90 .supply_name
= "vads7846",
91 .microvolts
= 3300000, /* 3.3V */
94 .init_data
= &vads7846_regulator
,
97 static struct platform_device vads7846_device
= {
98 .name
= "reg-fixed-voltage",
101 .platform_data
= &vads7846
,
105 static void __init
overo_ads7846_init(void)
107 omap_ads7846_init(1, OVERO_GPIO_PENDOWN
, 0, NULL
);
108 platform_device_register(&vads7846_device
);
112 static inline void __init
overo_ads7846_init(void) { return; }
115 #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
117 #include <linux/smsc911x.h>
118 #include <plat/gpmc-smsc911x.h>
120 static struct omap_smsc911x_platform_data smsc911x_cfg
= {
122 .cs
= OVERO_SMSC911X_CS
,
123 .gpio_irq
= OVERO_SMSC911X_GPIO
,
124 .gpio_reset
= -EINVAL
,
125 .flags
= SMSC911X_USE_32BIT
,
128 static struct omap_smsc911x_platform_data smsc911x2_cfg
= {
130 .cs
= OVERO_SMSC911X2_CS
,
131 .gpio_irq
= OVERO_SMSC911X2_GPIO
,
132 .gpio_reset
= -EINVAL
,
133 .flags
= SMSC911X_USE_32BIT
,
136 static void __init
overo_init_smsc911x(void)
138 gpmc_smsc911x_init(&smsc911x_cfg
);
139 gpmc_smsc911x_init(&smsc911x2_cfg
);
143 static inline void __init
overo_init_smsc911x(void) { return; }
147 static int lcd_enabled
;
148 static int dvi_enabled
;
150 #define OVERO_GPIO_LCD_EN 144
151 #define OVERO_GPIO_LCD_BL 145
153 static struct gpio overo_dss_gpios
[] __initdata
= {
154 { OVERO_GPIO_LCD_EN
, GPIOF_OUT_INIT_HIGH
, "OVERO_GPIO_LCD_EN" },
155 { OVERO_GPIO_LCD_BL
, GPIOF_OUT_INIT_HIGH
, "OVERO_GPIO_LCD_BL" },
158 static void __init
overo_display_init(void)
160 if (gpio_request_array(overo_dss_gpios
, ARRAY_SIZE(overo_dss_gpios
))) {
161 printk(KERN_ERR
"could not obtain DSS control GPIOs\n");
165 gpio_export(OVERO_GPIO_LCD_EN
, 0);
166 gpio_export(OVERO_GPIO_LCD_BL
, 0);
169 static int overo_panel_enable_dvi(struct omap_dss_device
*dssdev
)
172 printk(KERN_ERR
"cannot enable DVI, LCD is enabled\n");
180 static void overo_panel_disable_dvi(struct omap_dss_device
*dssdev
)
185 static struct panel_generic_dpi_data dvi_panel
= {
187 .platform_enable
= overo_panel_enable_dvi
,
188 .platform_disable
= overo_panel_disable_dvi
,
191 static struct omap_dss_device overo_dvi_device
= {
193 .type
= OMAP_DISPLAY_TYPE_DPI
,
194 .driver_name
= "generic_dpi_panel",
196 .phy
.dpi
.data_lines
= 24,
199 static struct omap_dss_device overo_tv_device
= {
201 .driver_name
= "venc",
202 .type
= OMAP_DISPLAY_TYPE_VENC
,
203 .phy
.venc
.type
= OMAP_DSS_VENC_TYPE_SVIDEO
,
206 static int overo_panel_enable_lcd(struct omap_dss_device
*dssdev
)
209 printk(KERN_ERR
"cannot enable LCD, DVI is enabled\n");
213 gpio_set_value(OVERO_GPIO_LCD_EN
, 1);
214 gpio_set_value(OVERO_GPIO_LCD_BL
, 1);
219 static void overo_panel_disable_lcd(struct omap_dss_device
*dssdev
)
221 gpio_set_value(OVERO_GPIO_LCD_EN
, 0);
222 gpio_set_value(OVERO_GPIO_LCD_BL
, 0);
226 static struct panel_generic_dpi_data lcd43_panel
= {
227 .name
= "samsung_lte430wq_f0c",
228 .platform_enable
= overo_panel_enable_lcd
,
229 .platform_disable
= overo_panel_disable_lcd
,
232 static struct omap_dss_device overo_lcd43_device
= {
234 .type
= OMAP_DISPLAY_TYPE_DPI
,
235 .driver_name
= "generic_dpi_panel",
236 .data
= &lcd43_panel
,
237 .phy
.dpi
.data_lines
= 24,
240 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
241 defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
242 static struct omap_dss_device overo_lcd35_device
= {
243 .type
= OMAP_DISPLAY_TYPE_DPI
,
245 .driver_name
= "lgphilips_lb035q02_panel",
246 .phy
.dpi
.data_lines
= 24,
247 .platform_enable
= overo_panel_enable_lcd
,
248 .platform_disable
= overo_panel_disable_lcd
,
252 static struct omap_dss_device
*overo_dss_devices
[] = {
255 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
256 defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
262 static struct omap_dss_board_info overo_dss_data
= {
263 .num_devices
= ARRAY_SIZE(overo_dss_devices
),
264 .devices
= overo_dss_devices
,
265 .default_device
= &overo_dvi_device
,
268 static struct mtd_partition overo_nand_partitions
[] = {
271 .offset
= 0, /* Offset = 0x00000 */
272 .size
= 4 * NAND_BLOCK_SIZE
,
273 .mask_flags
= MTD_WRITEABLE
277 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x80000 */
278 .size
= 14 * NAND_BLOCK_SIZE
,
281 .name
= "uboot environment",
282 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x240000 */
283 .size
= 2 * NAND_BLOCK_SIZE
,
287 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x280000 */
288 .size
= 32 * NAND_BLOCK_SIZE
,
292 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x680000 */
293 .size
= MTDPART_SIZ_FULL
,
297 static struct omap2_hsmmc_info mmc
[] = {
300 .caps
= MMC_CAP_4_BIT_DATA
,
306 .caps
= MMC_CAP_4_BIT_DATA
,
310 .ocr_mask
= 0x00100000, /* 3.3V */
315 static struct regulator_consumer_supply overo_vmmc1_supply
[] = {
316 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
319 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
320 #include <linux/leds.h>
322 static struct gpio_led gpio_leds
[] = {
324 .name
= "overo:red:gpio21",
325 .default_trigger
= "heartbeat",
330 .name
= "overo:blue:gpio22",
331 .default_trigger
= "none",
336 .name
= "overo:blue:COM",
337 .default_trigger
= "mmc0",
338 .gpio
= -EINVAL
, /* gets replaced */
343 static struct gpio_led_platform_data gpio_leds_pdata
= {
345 .num_leds
= ARRAY_SIZE(gpio_leds
),
348 static struct platform_device gpio_leds_device
= {
352 .platform_data
= &gpio_leds_pdata
,
356 static void __init
overo_init_led(void)
358 platform_device_register(&gpio_leds_device
);
362 static inline void __init
overo_init_led(void) { return; }
365 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
366 #include <linux/input.h>
367 #include <linux/gpio_keys.h>
369 static struct gpio_keys_button gpio_buttons
[] = {
384 static struct gpio_keys_platform_data gpio_keys_pdata
= {
385 .buttons
= gpio_buttons
,
386 .nbuttons
= ARRAY_SIZE(gpio_buttons
),
389 static struct platform_device gpio_keys_device
= {
393 .platform_data
= &gpio_keys_pdata
,
397 static void __init
overo_init_keys(void)
399 platform_device_register(&gpio_keys_device
);
403 static inline void __init
overo_init_keys(void) { return; }
406 static int overo_twl_gpio_setup(struct device
*dev
,
407 unsigned gpio
, unsigned ngpio
)
409 omap2_hsmmc_init(mmc
);
411 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
412 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
413 gpio_leds
[2].gpio
= gpio
+ TWL4030_GPIO_MAX
+ 1;
419 static struct twl4030_gpio_platform_data overo_gpio_data
= {
420 .gpio_base
= OMAP_MAX_GPIO_LINES
,
421 .irq_base
= TWL4030_GPIO_IRQ_BASE
,
422 .irq_end
= TWL4030_GPIO_IRQ_END
,
424 .setup
= overo_twl_gpio_setup
,
427 static struct regulator_init_data overo_vmmc1
= {
431 .valid_modes_mask
= REGULATOR_MODE_NORMAL
432 | REGULATOR_MODE_STANDBY
,
433 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
434 | REGULATOR_CHANGE_MODE
435 | REGULATOR_CHANGE_STATUS
,
437 .num_consumer_supplies
= ARRAY_SIZE(overo_vmmc1_supply
),
438 .consumer_supplies
= overo_vmmc1_supply
,
441 static struct twl4030_platform_data overo_twldata
= {
442 .gpio
= &overo_gpio_data
,
443 .vmmc1
= &overo_vmmc1
,
446 static int __init
overo_i2c_init(void)
448 omap3_pmic_get_config(&overo_twldata
,
449 TWL_COMMON_PDATA_USB
| TWL_COMMON_PDATA_AUDIO
,
450 TWL_COMMON_REGULATOR_VDAC
| TWL_COMMON_REGULATOR_VPLL2
);
452 overo_twldata
.vpll2
->constraints
.name
= "VDVI";
454 omap3_pmic_init("tps65950", &overo_twldata
);
455 /* i2c2 pins are used for gpio */
456 omap_register_i2c_bus(3, 400, NULL
, 0);
460 static struct spi_board_info overo_spi_board_info
[] __initdata
= {
461 #if defined(CONFIG_PANEL_LGPHILIPS_LB035Q02) || \
462 defined(CONFIG_PANEL_LGPHILIPS_LB035Q02_MODULE)
464 .modalias
= "lgphilips_lb035q02_panel-spi",
467 .max_speed_hz
= 500000,
473 static int __init
overo_spi_init(void)
475 overo_ads7846_init();
476 spi_register_board_info(overo_spi_board_info
,
477 ARRAY_SIZE(overo_spi_board_info
));
481 static void __init
overo_init_early(void)
483 omap2_init_common_infrastructure();
484 omap2_init_common_devices(mt46h32m32lf6_sdrc_params
,
485 mt46h32m32lf6_sdrc_params
);
488 static const struct usbhs_omap_board_data usbhs_bdata __initconst
= {
489 .port_mode
[0] = OMAP_USBHS_PORT_MODE_UNUSED
,
490 .port_mode
[1] = OMAP_EHCI_PORT_MODE_PHY
,
491 .port_mode
[2] = OMAP_USBHS_PORT_MODE_UNUSED
,
493 .reset_gpio_port
[0] = -EINVAL
,
494 .reset_gpio_port
[1] = OVERO_GPIO_USBH_NRESET
,
495 .reset_gpio_port
[2] = -EINVAL
498 #ifdef CONFIG_OMAP_MUX
499 static struct omap_board_mux board_mux
[] __initdata
= {
500 { .reg_offset
= OMAP_MUX_TERMINATOR
},
504 static struct gpio overo_bt_gpios
[] __initdata
= {
505 { OVERO_GPIO_BT_XGATE
, GPIOF_OUT_INIT_LOW
, "lcd enable" },
506 { OVERO_GPIO_BT_NRESET
, GPIOF_OUT_INIT_HIGH
, "lcd bl enable" },
509 static void __init
overo_init(void)
513 omap3_mux_init(board_mux
, OMAP_PACKAGE_CBB
);
515 omap_display_init(&overo_dss_data
);
517 omap_nand_flash_init(0, overo_nand_partitions
,
518 ARRAY_SIZE(overo_nand_partitions
));
520 usbhs_init(&usbhs_bdata
);
522 overo_init_smsc911x();
523 overo_display_init();
527 /* Ensure SDRC pins are mux'd for self-refresh */
528 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT
);
529 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT
);
531 ret
= gpio_request_one(OVERO_GPIO_W2W_NRESET
, GPIOF_OUT_INIT_HIGH
,
532 "OVERO_GPIO_W2W_NRESET");
534 gpio_export(OVERO_GPIO_W2W_NRESET
, 0);
535 gpio_set_value(OVERO_GPIO_W2W_NRESET
, 0);
537 gpio_set_value(OVERO_GPIO_W2W_NRESET
, 1);
539 printk(KERN_ERR
"could not obtain gpio for "
540 "OVERO_GPIO_W2W_NRESET\n");
543 ret
= gpio_request_array(overo_bt_gpios
, ARRAY_SIZE(overo_bt_gpios
));
545 pr_err("%s: could not obtain BT gpios\n", __func__
);
547 gpio_export(OVERO_GPIO_BT_XGATE
, 0);
548 gpio_export(OVERO_GPIO_BT_NRESET
, 0);
549 gpio_set_value(OVERO_GPIO_BT_NRESET
, 0);
551 gpio_set_value(OVERO_GPIO_BT_NRESET
, 1);
554 ret
= gpio_request_one(OVERO_GPIO_USBH_CPEN
, GPIOF_OUT_INIT_HIGH
,
555 "OVERO_GPIO_USBH_CPEN");
557 gpio_export(OVERO_GPIO_USBH_CPEN
, 0);
559 printk(KERN_ERR
"could not obtain gpio for "
560 "OVERO_GPIO_USBH_CPEN\n");
563 MACHINE_START(OVERO
, "Gumstix Overo")
564 .atag_offset
= 0x100,
565 .reserve
= omap_reserve
,
566 .map_io
= omap3_map_io
,
567 .init_early
= overo_init_early
,
568 .init_irq
= omap3_init_irq
,
569 .init_machine
= overo_init
,
570 .timer
= &omap3_timer
,