2 * linux/arch/arm/mach-omap2/board-omap3beagle.c
4 * Copyright (C) 2008 Texas Instruments
6 * Modified from mach-omap2/board-3430sdp.c
8 * Initial code: Syed Mohammed Khasim
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/platform_device.h>
18 #include <linux/delay.h>
19 #include <linux/err.h>
20 #include <linux/clk.h>
22 #include <linux/leds.h>
23 #include <linux/gpio.h>
24 #include <linux/input.h>
25 #include <linux/gpio_keys.h>
26 #include <linux/opp.h>
28 #include <linux/mtd/mtd.h>
29 #include <linux/mtd/partitions.h>
30 #include <linux/mtd/nand.h>
31 #include <linux/mmc/host.h>
33 #include <linux/regulator/machine.h>
34 #include <linux/i2c/twl.h>
36 #include <asm/mach-types.h>
37 #include <asm/mach/arch.h>
38 #include <asm/mach/map.h>
39 #include <asm/mach/flash.h>
42 #include <video/omapdss.h>
43 #include <video/omap-panel-tfp410.h>
44 #include <plat/gpmc.h>
45 #include <linux/platform_data/mtd-nand-omap2.h>
47 #include <plat/omap_device.h>
52 #include "common-board-devices.h"
55 * OMAP3 Beagle revision
56 * Run time detection of Beagle revision is done by reading GPIO.
58 * AXBX = GPIO173, GPIO172, GPIO171: 1 1 1
59 * C1_3 = GPIO173, GPIO172, GPIO171: 1 1 0
60 * C4 = GPIO173, GPIO172, GPIO171: 1 0 1
61 * XMA/XMB = GPIO173, GPIO172, GPIO171: 0 0 0
62 * XMC = GPIO173, GPIO172, GPIO171: 0 1 0
65 OMAP3BEAGLE_BOARD_UNKN
= 0,
66 OMAP3BEAGLE_BOARD_AXBX
,
67 OMAP3BEAGLE_BOARD_C1_3
,
70 OMAP3BEAGLE_BOARD_XMC
,
73 static u8 omap3_beagle_version
;
76 * Board-specific configuration
77 * Defaults to BeagleBoard-xMC
86 .mmc1_gpio_wp
= -EINVAL
,
87 .usb_pwr_level
= GPIOF_OUT_INIT_LOW
,
88 .dvi_pd_gpio
= -EINVAL
,
90 .mmc_caps
= MMC_CAP_4_BIT_DATA
| MMC_CAP_8_BIT_DATA
,
93 static struct gpio omap3_beagle_rev_gpios
[] __initdata
= {
94 { 171, GPIOF_IN
, "rev_id_0" },
95 { 172, GPIOF_IN
, "rev_id_1" },
96 { 173, GPIOF_IN
, "rev_id_2" },
99 static void __init
omap3_beagle_init_rev(void)
104 omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP
);
105 omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP
);
106 omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP
);
108 ret
= gpio_request_array(omap3_beagle_rev_gpios
,
109 ARRAY_SIZE(omap3_beagle_rev_gpios
));
111 printk(KERN_ERR
"Unable to get revision detection GPIO pins\n");
112 omap3_beagle_version
= OMAP3BEAGLE_BOARD_UNKN
;
116 beagle_rev
= gpio_get_value(171) | (gpio_get_value(172) << 1)
117 | (gpio_get_value(173) << 2);
119 gpio_free_array(omap3_beagle_rev_gpios
,
120 ARRAY_SIZE(omap3_beagle_rev_gpios
));
122 switch (beagle_rev
) {
124 printk(KERN_INFO
"OMAP3 Beagle Rev: Ax/Bx\n");
125 omap3_beagle_version
= OMAP3BEAGLE_BOARD_AXBX
;
126 beagle_config
.mmc1_gpio_wp
= 29;
127 beagle_config
.dvi_pd_gpio
= 170;
128 beagle_config
.usr_button_gpio
= 7;
131 printk(KERN_INFO
"OMAP3 Beagle Rev: C1/C2/C3\n");
132 omap3_beagle_version
= OMAP3BEAGLE_BOARD_C1_3
;
133 beagle_config
.mmc1_gpio_wp
= 23;
134 beagle_config
.dvi_pd_gpio
= 170;
135 beagle_config
.usr_button_gpio
= 7;
138 printk(KERN_INFO
"OMAP3 Beagle Rev: C4\n");
139 omap3_beagle_version
= OMAP3BEAGLE_BOARD_C4
;
140 beagle_config
.mmc1_gpio_wp
= 23;
141 beagle_config
.dvi_pd_gpio
= 170;
142 beagle_config
.usr_button_gpio
= 7;
145 printk(KERN_INFO
"OMAP3 Beagle Rev: xM Ax/Bx\n");
146 omap3_beagle_version
= OMAP3BEAGLE_BOARD_XM
;
147 beagle_config
.usb_pwr_level
= GPIOF_OUT_INIT_HIGH
;
148 beagle_config
.mmc_caps
&= ~MMC_CAP_8_BIT_DATA
;
151 printk(KERN_INFO
"OMAP3 Beagle Rev: xM C\n");
152 omap3_beagle_version
= OMAP3BEAGLE_BOARD_XMC
;
153 beagle_config
.mmc_caps
&= ~MMC_CAP_8_BIT_DATA
;
156 printk(KERN_INFO
"OMAP3 Beagle Rev: unknown %hd\n", beagle_rev
);
157 omap3_beagle_version
= OMAP3BEAGLE_BOARD_UNKN
;
161 static struct mtd_partition omap3beagle_nand_partitions
[] = {
162 /* All the partition sizes are listed in terms of NAND block size */
166 .size
= 4 * NAND_BLOCK_SIZE
,
167 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
171 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x80000 */
172 .size
= 15 * NAND_BLOCK_SIZE
,
173 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
176 .name
= "U-Boot Env",
177 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x260000 */
178 .size
= 1 * NAND_BLOCK_SIZE
,
182 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x280000 */
183 .size
= 32 * NAND_BLOCK_SIZE
,
186 .name
= "File System",
187 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x680000 */
188 .size
= MTDPART_SIZ_FULL
,
194 static struct tfp410_platform_data dvi_panel
= {
196 .power_down_gpio
= -1,
199 static struct omap_dss_device beagle_dvi_device
= {
200 .type
= OMAP_DISPLAY_TYPE_DPI
,
202 .driver_name
= "tfp410",
204 .phy
.dpi
.data_lines
= 24,
207 static struct omap_dss_device beagle_tv_device
= {
209 .driver_name
= "venc",
210 .type
= OMAP_DISPLAY_TYPE_VENC
,
211 .phy
.venc
.type
= OMAP_DSS_VENC_TYPE_SVIDEO
,
214 static struct omap_dss_device
*beagle_dss_devices
[] = {
219 static struct omap_dss_board_info beagle_dss_data
= {
220 .num_devices
= ARRAY_SIZE(beagle_dss_devices
),
221 .devices
= beagle_dss_devices
,
222 .default_device
= &beagle_dvi_device
,
225 #include "sdram-micron-mt46h32m32lf-6.h"
227 static struct omap2_hsmmc_info mmc
[] = {
230 .caps
= MMC_CAP_4_BIT_DATA
,
237 static struct regulator_consumer_supply beagle_vmmc1_supply
[] = {
238 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
241 static struct regulator_consumer_supply beagle_vsim_supply
[] = {
242 REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
245 static struct gpio_led gpio_leds
[];
247 static int beagle_twl_gpio_setup(struct device
*dev
,
248 unsigned gpio
, unsigned ngpio
)
252 mmc
[0].gpio_wp
= beagle_config
.mmc1_gpio_wp
;
253 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
254 mmc
[0].gpio_cd
= gpio
+ 0;
255 omap_hsmmc_late_init(mmc
);
258 * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
259 * high / others active low)
260 * DVI reset GPIO is different between beagle revisions
262 /* Valid for all -xM revisions */
263 if (cpu_is_omap3630()) {
265 * gpio + 1 on Xm controls the TFP410's enable line (active low)
266 * gpio + 2 control varies depending on the board rev as below:
267 * P7/P8 revisions(prototype): Camera EN
268 * A2+ revisions (production): LDO (DVI, serial, led blocks)
270 r
= gpio_request_one(gpio
+ 1, GPIOF_OUT_INIT_LOW
,
273 pr_err("%s: unable to configure nDVI_PWR_EN\n",
276 beagle_config
.dvi_pd_gpio
= gpio
+ 2;
280 * REVISIT: need ehci-omap hooks for external VBUS
281 * power switch and overcurrent detect
283 if (gpio_request_one(gpio
+ 1, GPIOF_IN
, "EHCI_nOC"))
284 pr_err("%s: unable to configure EHCI_nOC\n", __func__
);
286 dvi_panel
.power_down_gpio
= beagle_config
.dvi_pd_gpio
;
288 gpio_request_one(gpio
+ TWL4030_GPIO_MAX
, beagle_config
.usb_pwr_level
,
291 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
292 gpio_leds
[2].gpio
= gpio
+ TWL4030_GPIO_MAX
+ 1;
297 static struct twl4030_gpio_platform_data beagle_gpio_data
= {
300 .pulldowns
= BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
301 | BIT(15) | BIT(16) | BIT(17),
302 .setup
= beagle_twl_gpio_setup
,
305 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
306 static struct regulator_init_data beagle_vmmc1
= {
310 .valid_modes_mask
= REGULATOR_MODE_NORMAL
311 | REGULATOR_MODE_STANDBY
,
312 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
313 | REGULATOR_CHANGE_MODE
314 | REGULATOR_CHANGE_STATUS
,
316 .num_consumer_supplies
= ARRAY_SIZE(beagle_vmmc1_supply
),
317 .consumer_supplies
= beagle_vmmc1_supply
,
320 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
321 static struct regulator_init_data beagle_vsim
= {
325 .valid_modes_mask
= REGULATOR_MODE_NORMAL
326 | REGULATOR_MODE_STANDBY
,
327 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
328 | REGULATOR_CHANGE_MODE
329 | REGULATOR_CHANGE_STATUS
,
331 .num_consumer_supplies
= ARRAY_SIZE(beagle_vsim_supply
),
332 .consumer_supplies
= beagle_vsim_supply
,
335 static struct twl4030_platform_data beagle_twldata
= {
336 /* platform_data for children goes here */
337 .gpio
= &beagle_gpio_data
,
338 .vmmc1
= &beagle_vmmc1
,
339 .vsim
= &beagle_vsim
,
342 static struct i2c_board_info __initdata beagle_i2c_eeprom
[] = {
344 I2C_BOARD_INFO("eeprom", 0x50),
348 static int __init
omap3_beagle_i2c_init(void)
350 omap3_pmic_get_config(&beagle_twldata
,
351 TWL_COMMON_PDATA_USB
| TWL_COMMON_PDATA_MADC
|
352 TWL_COMMON_PDATA_AUDIO
,
353 TWL_COMMON_REGULATOR_VDAC
| TWL_COMMON_REGULATOR_VPLL2
);
355 beagle_twldata
.vpll2
->constraints
.name
= "VDVI";
357 omap3_pmic_init("twl4030", &beagle_twldata
);
358 /* Bus 3 is attached to the DVI port where devices like the pico DLP
359 * projector don't work reliably with 400kHz */
360 omap_register_i2c_bus(3, 100, beagle_i2c_eeprom
, ARRAY_SIZE(beagle_i2c_eeprom
));
364 static struct gpio_led gpio_leds
[] = {
366 .name
= "beagleboard::usr0",
367 .default_trigger
= "heartbeat",
371 .name
= "beagleboard::usr1",
372 .default_trigger
= "mmc0",
376 .name
= "beagleboard::pmu_stat",
377 .gpio
= -EINVAL
, /* gets replaced */
382 static struct gpio_led_platform_data gpio_led_info
= {
384 .num_leds
= ARRAY_SIZE(gpio_leds
),
387 static struct platform_device leds_gpio
= {
391 .platform_data
= &gpio_led_info
,
395 static struct gpio_keys_button gpio_buttons
[] = {
398 /* Dynamically assigned depending on board */
405 static struct gpio_keys_platform_data gpio_key_info
= {
406 .buttons
= gpio_buttons
,
407 .nbuttons
= ARRAY_SIZE(gpio_buttons
),
410 static struct platform_device keys_gpio
= {
414 .platform_data
= &gpio_key_info
,
418 static struct platform_device madc_hwmon
= {
419 .name
= "twl4030_madc_hwmon",
423 static struct platform_device
*omap3_beagle_devices
[] __initdata
= {
429 static const struct usbhs_omap_board_data usbhs_bdata __initconst
= {
431 .port_mode
[0] = OMAP_USBHS_PORT_MODE_UNUSED
,
432 .port_mode
[1] = OMAP_EHCI_PORT_MODE_PHY
,
433 .port_mode
[2] = OMAP_USBHS_PORT_MODE_UNUSED
,
436 .reset_gpio_port
[0] = -EINVAL
,
437 .reset_gpio_port
[1] = 147,
438 .reset_gpio_port
[2] = -EINVAL
441 #ifdef CONFIG_OMAP_MUX
442 static struct omap_board_mux board_mux
[] __initdata
= {
443 { .reg_offset
= OMAP_MUX_TERMINATOR
},
447 static void __init
beagle_opp_init(void)
451 /* Initialize the omap3 opp table */
452 if (omap3_opp_init()) {
453 pr_err("%s: opp default init failed\n", __func__
);
457 /* Custom OPP enabled for all xM versions */
458 if (cpu_is_omap3630()) {
459 struct device
*mpu_dev
, *iva_dev
;
461 mpu_dev
= omap_device_get_by_hwmod_name("mpu");
462 iva_dev
= omap_device_get_by_hwmod_name("iva");
464 if (!mpu_dev
|| !iva_dev
) {
465 pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
466 __func__
, mpu_dev
, iva_dev
);
469 /* Enable MPU 1GHz and lower opps */
470 r
= opp_enable(mpu_dev
, 800000000);
471 /* TODO: MPU 1GHz needs SR and ABB */
473 /* Enable IVA 800MHz and lower opps */
474 r
|= opp_enable(iva_dev
, 660000000);
475 /* TODO: DSP 800MHz needs SR and ABB */
477 pr_err("%s: failed to enable higher opp %d\n",
480 * Cleanup - disable the higher freqs - we dont care
483 opp_disable(mpu_dev
, 800000000);
484 opp_disable(iva_dev
, 660000000);
490 static void __init
omap3_beagle_init(void)
492 omap3_mux_init(board_mux
, OMAP_PACKAGE_CBB
);
493 omap3_beagle_init_rev();
495 if (gpio_is_valid(beagle_config
.mmc1_gpio_wp
))
496 omap_mux_init_gpio(beagle_config
.mmc1_gpio_wp
, OMAP_PIN_INPUT
);
497 mmc
[0].caps
= beagle_config
.mmc_caps
;
498 omap_hsmmc_init(mmc
);
500 omap3_beagle_i2c_init();
502 gpio_buttons
[0].gpio
= beagle_config
.usr_button_gpio
;
504 platform_add_devices(omap3_beagle_devices
,
505 ARRAY_SIZE(omap3_beagle_devices
));
506 if (gpio_is_valid(beagle_config
.dvi_pd_gpio
))
507 omap_mux_init_gpio(beagle_config
.dvi_pd_gpio
, OMAP_PIN_OUTPUT
);
508 omap_display_init(&beagle_dss_data
);
510 omap_sdrc_init(mt46h32m32lf6_sdrc_params
,
511 mt46h32m32lf6_sdrc_params
);
514 usbhs_init(&usbhs_bdata
);
515 omap_nand_flash_init(NAND_BUSWIDTH_16
, omap3beagle_nand_partitions
,
516 ARRAY_SIZE(omap3beagle_nand_partitions
));
517 omap_twl4030_audio_init("omap3beagle");
519 /* Ensure msecure is mux'd to be able to set the RTC. */
520 omap_mux_init_signal("sys_drm_msecure", OMAP_PIN_OFF_OUTPUT_HIGH
);
522 /* Ensure SDRC pins are mux'd for self-refresh */
523 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT
);
524 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT
);
529 MACHINE_START(OMAP3_BEAGLE
, "OMAP3 Beagle Board")
530 /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
531 .atag_offset
= 0x100,
532 .reserve
= omap_reserve
,
533 .map_io
= omap3_map_io
,
534 .init_early
= omap3_init_early
,
535 .init_irq
= omap3_init_irq
,
536 .handle_irq
= omap3_intc_handle_irq
,
537 .init_machine
= omap3_beagle_init
,
538 .init_late
= omap3_init_late
,
539 .timer
= &omap3_secure_timer
,
540 .restart
= omap_prcm_restart
,