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>
27 #include <linux/cpu.h>
29 #include <linux/mtd/mtd.h>
30 #include <linux/mtd/partitions.h>
31 #include <linux/mtd/nand.h>
32 #include <linux/mmc/host.h>
34 #include <linux/regulator/machine.h>
35 #include <linux/i2c/twl.h>
37 #include <asm/mach-types.h>
38 #include <asm/mach/arch.h>
39 #include <asm/mach/map.h>
40 #include <asm/mach/flash.h>
43 #include <video/omapdss.h>
44 #include <video/omap-panel-tfp410.h>
45 #include <plat/gpmc.h>
46 #include <linux/platform_data/mtd-nand-omap2.h>
48 #include <plat/omap_device.h>
53 #include "common-board-devices.h"
56 * OMAP3 Beagle revision
57 * Run time detection of Beagle revision is done by reading GPIO.
59 * AXBX = GPIO173, GPIO172, GPIO171: 1 1 1
60 * C1_3 = GPIO173, GPIO172, GPIO171: 1 1 0
61 * C4 = GPIO173, GPIO172, GPIO171: 1 0 1
62 * XMA/XMB = GPIO173, GPIO172, GPIO171: 0 0 0
63 * XMC = GPIO173, GPIO172, GPIO171: 0 1 0
66 OMAP3BEAGLE_BOARD_UNKN
= 0,
67 OMAP3BEAGLE_BOARD_AXBX
,
68 OMAP3BEAGLE_BOARD_C1_3
,
71 OMAP3BEAGLE_BOARD_XMC
,
74 static u8 omap3_beagle_version
;
77 * Board-specific configuration
78 * Defaults to BeagleBoard-xMC
87 .mmc1_gpio_wp
= -EINVAL
,
88 .usb_pwr_level
= GPIOF_OUT_INIT_LOW
,
89 .dvi_pd_gpio
= -EINVAL
,
91 .mmc_caps
= MMC_CAP_4_BIT_DATA
| MMC_CAP_8_BIT_DATA
,
94 static struct gpio omap3_beagle_rev_gpios
[] __initdata
= {
95 { 171, GPIOF_IN
, "rev_id_0" },
96 { 172, GPIOF_IN
, "rev_id_1" },
97 { 173, GPIOF_IN
, "rev_id_2" },
100 static void __init
omap3_beagle_init_rev(void)
105 omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP
);
106 omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP
);
107 omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP
);
109 ret
= gpio_request_array(omap3_beagle_rev_gpios
,
110 ARRAY_SIZE(omap3_beagle_rev_gpios
));
112 printk(KERN_ERR
"Unable to get revision detection GPIO pins\n");
113 omap3_beagle_version
= OMAP3BEAGLE_BOARD_UNKN
;
117 beagle_rev
= gpio_get_value(171) | (gpio_get_value(172) << 1)
118 | (gpio_get_value(173) << 2);
120 gpio_free_array(omap3_beagle_rev_gpios
,
121 ARRAY_SIZE(omap3_beagle_rev_gpios
));
123 switch (beagle_rev
) {
125 printk(KERN_INFO
"OMAP3 Beagle Rev: Ax/Bx\n");
126 omap3_beagle_version
= OMAP3BEAGLE_BOARD_AXBX
;
127 beagle_config
.mmc1_gpio_wp
= 29;
128 beagle_config
.dvi_pd_gpio
= 170;
129 beagle_config
.usr_button_gpio
= 7;
132 printk(KERN_INFO
"OMAP3 Beagle Rev: C1/C2/C3\n");
133 omap3_beagle_version
= OMAP3BEAGLE_BOARD_C1_3
;
134 beagle_config
.mmc1_gpio_wp
= 23;
135 beagle_config
.dvi_pd_gpio
= 170;
136 beagle_config
.usr_button_gpio
= 7;
139 printk(KERN_INFO
"OMAP3 Beagle Rev: C4\n");
140 omap3_beagle_version
= OMAP3BEAGLE_BOARD_C4
;
141 beagle_config
.mmc1_gpio_wp
= 23;
142 beagle_config
.dvi_pd_gpio
= 170;
143 beagle_config
.usr_button_gpio
= 7;
146 printk(KERN_INFO
"OMAP3 Beagle Rev: xM Ax/Bx\n");
147 omap3_beagle_version
= OMAP3BEAGLE_BOARD_XM
;
148 beagle_config
.usb_pwr_level
= GPIOF_OUT_INIT_HIGH
;
149 beagle_config
.mmc_caps
&= ~MMC_CAP_8_BIT_DATA
;
152 printk(KERN_INFO
"OMAP3 Beagle Rev: xM C\n");
153 omap3_beagle_version
= OMAP3BEAGLE_BOARD_XMC
;
154 beagle_config
.mmc_caps
&= ~MMC_CAP_8_BIT_DATA
;
157 printk(KERN_INFO
"OMAP3 Beagle Rev: unknown %hd\n", beagle_rev
);
158 omap3_beagle_version
= OMAP3BEAGLE_BOARD_UNKN
;
162 static struct mtd_partition omap3beagle_nand_partitions
[] = {
163 /* All the partition sizes are listed in terms of NAND block size */
167 .size
= 4 * NAND_BLOCK_SIZE
,
168 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
172 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x80000 */
173 .size
= 15 * NAND_BLOCK_SIZE
,
174 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
177 .name
= "U-Boot Env",
178 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x260000 */
179 .size
= 1 * NAND_BLOCK_SIZE
,
183 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x280000 */
184 .size
= 32 * NAND_BLOCK_SIZE
,
187 .name
= "File System",
188 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x680000 */
189 .size
= MTDPART_SIZ_FULL
,
195 static struct tfp410_platform_data dvi_panel
= {
197 .power_down_gpio
= -1,
200 static struct omap_dss_device beagle_dvi_device
= {
201 .type
= OMAP_DISPLAY_TYPE_DPI
,
203 .driver_name
= "tfp410",
205 .phy
.dpi
.data_lines
= 24,
208 static struct omap_dss_device beagle_tv_device
= {
210 .driver_name
= "venc",
211 .type
= OMAP_DISPLAY_TYPE_VENC
,
212 .phy
.venc
.type
= OMAP_DSS_VENC_TYPE_SVIDEO
,
215 static struct omap_dss_device
*beagle_dss_devices
[] = {
220 static struct omap_dss_board_info beagle_dss_data
= {
221 .num_devices
= ARRAY_SIZE(beagle_dss_devices
),
222 .devices
= beagle_dss_devices
,
223 .default_device
= &beagle_dvi_device
,
226 #include "sdram-micron-mt46h32m32lf-6.h"
228 static struct omap2_hsmmc_info mmc
[] = {
231 .caps
= MMC_CAP_4_BIT_DATA
,
238 static struct regulator_consumer_supply beagle_vmmc1_supply
[] = {
239 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
242 static struct regulator_consumer_supply beagle_vsim_supply
[] = {
243 REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
246 static struct gpio_led gpio_leds
[];
248 static int beagle_twl_gpio_setup(struct device
*dev
,
249 unsigned gpio
, unsigned ngpio
)
253 mmc
[0].gpio_wp
= beagle_config
.mmc1_gpio_wp
;
254 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
255 mmc
[0].gpio_cd
= gpio
+ 0;
256 omap_hsmmc_late_init(mmc
);
259 * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
260 * high / others active low)
261 * DVI reset GPIO is different between beagle revisions
263 /* Valid for all -xM revisions */
264 if (cpu_is_omap3630()) {
266 * gpio + 1 on Xm controls the TFP410's enable line (active low)
267 * gpio + 2 control varies depending on the board rev as below:
268 * P7/P8 revisions(prototype): Camera EN
269 * A2+ revisions (production): LDO (DVI, serial, led blocks)
271 r
= gpio_request_one(gpio
+ 1, GPIOF_OUT_INIT_LOW
,
274 pr_err("%s: unable to configure nDVI_PWR_EN\n",
277 beagle_config
.dvi_pd_gpio
= gpio
+ 2;
281 * REVISIT: need ehci-omap hooks for external VBUS
282 * power switch and overcurrent detect
284 if (gpio_request_one(gpio
+ 1, GPIOF_IN
, "EHCI_nOC"))
285 pr_err("%s: unable to configure EHCI_nOC\n", __func__
);
287 dvi_panel
.power_down_gpio
= beagle_config
.dvi_pd_gpio
;
289 gpio_request_one(gpio
+ TWL4030_GPIO_MAX
, beagle_config
.usb_pwr_level
,
292 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
293 gpio_leds
[2].gpio
= gpio
+ TWL4030_GPIO_MAX
+ 1;
298 static struct twl4030_gpio_platform_data beagle_gpio_data
= {
301 .pulldowns
= BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
302 | BIT(15) | BIT(16) | BIT(17),
303 .setup
= beagle_twl_gpio_setup
,
306 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
307 static struct regulator_init_data beagle_vmmc1
= {
311 .valid_modes_mask
= REGULATOR_MODE_NORMAL
312 | REGULATOR_MODE_STANDBY
,
313 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
314 | REGULATOR_CHANGE_MODE
315 | REGULATOR_CHANGE_STATUS
,
317 .num_consumer_supplies
= ARRAY_SIZE(beagle_vmmc1_supply
),
318 .consumer_supplies
= beagle_vmmc1_supply
,
321 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
322 static struct regulator_init_data beagle_vsim
= {
326 .valid_modes_mask
= REGULATOR_MODE_NORMAL
327 | REGULATOR_MODE_STANDBY
,
328 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
329 | REGULATOR_CHANGE_MODE
330 | REGULATOR_CHANGE_STATUS
,
332 .num_consumer_supplies
= ARRAY_SIZE(beagle_vsim_supply
),
333 .consumer_supplies
= beagle_vsim_supply
,
336 static struct twl4030_platform_data beagle_twldata
= {
337 /* platform_data for children goes here */
338 .gpio
= &beagle_gpio_data
,
339 .vmmc1
= &beagle_vmmc1
,
340 .vsim
= &beagle_vsim
,
343 static struct i2c_board_info __initdata beagle_i2c_eeprom
[] = {
345 I2C_BOARD_INFO("eeprom", 0x50),
349 static int __init
omap3_beagle_i2c_init(void)
351 omap3_pmic_get_config(&beagle_twldata
,
352 TWL_COMMON_PDATA_USB
| TWL_COMMON_PDATA_MADC
|
353 TWL_COMMON_PDATA_AUDIO
,
354 TWL_COMMON_REGULATOR_VDAC
| TWL_COMMON_REGULATOR_VPLL2
);
356 beagle_twldata
.vpll2
->constraints
.name
= "VDVI";
358 omap3_pmic_init("twl4030", &beagle_twldata
);
359 /* Bus 3 is attached to the DVI port where devices like the pico DLP
360 * projector don't work reliably with 400kHz */
361 omap_register_i2c_bus(3, 100, beagle_i2c_eeprom
, ARRAY_SIZE(beagle_i2c_eeprom
));
365 static struct gpio_led gpio_leds
[] = {
367 .name
= "beagleboard::usr0",
368 .default_trigger
= "heartbeat",
372 .name
= "beagleboard::usr1",
373 .default_trigger
= "mmc0",
377 .name
= "beagleboard::pmu_stat",
378 .gpio
= -EINVAL
, /* gets replaced */
383 static struct gpio_led_platform_data gpio_led_info
= {
385 .num_leds
= ARRAY_SIZE(gpio_leds
),
388 static struct platform_device leds_gpio
= {
392 .platform_data
= &gpio_led_info
,
396 static struct gpio_keys_button gpio_buttons
[] = {
399 /* Dynamically assigned depending on board */
406 static struct gpio_keys_platform_data gpio_key_info
= {
407 .buttons
= gpio_buttons
,
408 .nbuttons
= ARRAY_SIZE(gpio_buttons
),
411 static struct platform_device keys_gpio
= {
415 .platform_data
= &gpio_key_info
,
419 static struct platform_device madc_hwmon
= {
420 .name
= "twl4030_madc_hwmon",
424 static struct platform_device
*omap3_beagle_devices
[] __initdata
= {
430 static const struct usbhs_omap_board_data usbhs_bdata __initconst
= {
432 .port_mode
[0] = OMAP_USBHS_PORT_MODE_UNUSED
,
433 .port_mode
[1] = OMAP_EHCI_PORT_MODE_PHY
,
434 .port_mode
[2] = OMAP_USBHS_PORT_MODE_UNUSED
,
437 .reset_gpio_port
[0] = -EINVAL
,
438 .reset_gpio_port
[1] = 147,
439 .reset_gpio_port
[2] = -EINVAL
442 #ifdef CONFIG_OMAP_MUX
443 static struct omap_board_mux board_mux
[] __initdata
= {
444 { .reg_offset
= OMAP_MUX_TERMINATOR
},
448 static int __init
beagle_opp_init(void)
452 if (!machine_is_omap3_beagle())
455 /* Initialize the omap3 opp table if not already created. */
456 r
= omap3_opp_init();
457 if (IS_ERR_VALUE(r
) && (r
!= -EEXIST
)) {
458 pr_err("%s: opp default init failed\n", __func__
);
462 /* Custom OPP enabled for all xM versions */
463 if (cpu_is_omap3630()) {
464 struct device
*mpu_dev
, *iva_dev
;
466 mpu_dev
= get_cpu_device(0);
467 iva_dev
= omap_device_get_by_hwmod_name("iva");
469 if (IS_ERR(mpu_dev
) || IS_ERR(iva_dev
)) {
470 pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
471 __func__
, mpu_dev
, iva_dev
);
474 /* Enable MPU 1GHz and lower opps */
475 r
= opp_enable(mpu_dev
, 800000000);
476 /* TODO: MPU 1GHz needs SR and ABB */
478 /* Enable IVA 800MHz and lower opps */
479 r
|= opp_enable(iva_dev
, 660000000);
480 /* TODO: DSP 800MHz needs SR and ABB */
482 pr_err("%s: failed to enable higher opp %d\n",
485 * Cleanup - disable the higher freqs - we dont care
488 opp_disable(mpu_dev
, 800000000);
489 opp_disable(iva_dev
, 660000000);
494 device_initcall(beagle_opp_init
);
496 static void __init
omap3_beagle_init(void)
498 omap3_mux_init(board_mux
, OMAP_PACKAGE_CBB
);
499 omap3_beagle_init_rev();
501 if (gpio_is_valid(beagle_config
.mmc1_gpio_wp
))
502 omap_mux_init_gpio(beagle_config
.mmc1_gpio_wp
, OMAP_PIN_INPUT
);
503 mmc
[0].caps
= beagle_config
.mmc_caps
;
504 omap_hsmmc_init(mmc
);
506 omap3_beagle_i2c_init();
508 gpio_buttons
[0].gpio
= beagle_config
.usr_button_gpio
;
510 platform_add_devices(omap3_beagle_devices
,
511 ARRAY_SIZE(omap3_beagle_devices
));
512 if (gpio_is_valid(beagle_config
.dvi_pd_gpio
))
513 omap_mux_init_gpio(beagle_config
.dvi_pd_gpio
, OMAP_PIN_OUTPUT
);
514 omap_display_init(&beagle_dss_data
);
516 omap_sdrc_init(mt46h32m32lf6_sdrc_params
,
517 mt46h32m32lf6_sdrc_params
);
520 usbhs_init(&usbhs_bdata
);
521 omap_nand_flash_init(NAND_BUSWIDTH_16
, omap3beagle_nand_partitions
,
522 ARRAY_SIZE(omap3beagle_nand_partitions
));
523 omap_twl4030_audio_init("omap3beagle");
525 /* Ensure msecure is mux'd to be able to set the RTC. */
526 omap_mux_init_signal("sys_drm_msecure", OMAP_PIN_OFF_OUTPUT_HIGH
);
528 /* Ensure SDRC pins are mux'd for self-refresh */
529 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT
);
530 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT
);
533 MACHINE_START(OMAP3_BEAGLE
, "OMAP3 Beagle Board")
534 /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
535 .atag_offset
= 0x100,
536 .reserve
= omap_reserve
,
537 .map_io
= omap3_map_io
,
538 .init_early
= omap3_init_early
,
539 .init_irq
= omap3_init_irq
,
540 .handle_irq
= omap3_intc_handle_irq
,
541 .init_machine
= omap3_beagle_init
,
542 .init_late
= omap3_init_late
,
543 .timer
= &omap3_secure_timer
,
544 .restart
= omap_prcm_restart
,