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>
45 #include <linux/platform_data/mtd-nand-omap2.h>
47 #include "omap_device.h"
52 #include "board-flash.h"
53 #include "common-board-devices.h"
58 * OMAP3 Beagle revision
59 * Run time detection of Beagle revision is done by reading GPIO.
61 * AXBX = GPIO173, GPIO172, GPIO171: 1 1 1
62 * C1_3 = GPIO173, GPIO172, GPIO171: 1 1 0
63 * C4 = GPIO173, GPIO172, GPIO171: 1 0 1
64 * XMA/XMB = GPIO173, GPIO172, GPIO171: 0 0 0
65 * XMC = GPIO173, GPIO172, GPIO171: 0 1 0
68 OMAP3BEAGLE_BOARD_UNKN
= 0,
69 OMAP3BEAGLE_BOARD_AXBX
,
70 OMAP3BEAGLE_BOARD_C1_3
,
73 OMAP3BEAGLE_BOARD_XMC
,
76 static u8 omap3_beagle_version
;
79 * Board-specific configuration
80 * Defaults to BeagleBoard-xMC
89 .mmc1_gpio_wp
= -EINVAL
,
90 .usb_pwr_level
= GPIOF_OUT_INIT_LOW
,
91 .dvi_pd_gpio
= -EINVAL
,
93 .mmc_caps
= MMC_CAP_4_BIT_DATA
| MMC_CAP_8_BIT_DATA
,
96 static struct gpio omap3_beagle_rev_gpios
[] __initdata
= {
97 { 171, GPIOF_IN
, "rev_id_0" },
98 { 172, GPIOF_IN
, "rev_id_1" },
99 { 173, GPIOF_IN
, "rev_id_2" },
102 static void __init
omap3_beagle_init_rev(void)
107 omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP
);
108 omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP
);
109 omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP
);
111 ret
= gpio_request_array(omap3_beagle_rev_gpios
,
112 ARRAY_SIZE(omap3_beagle_rev_gpios
));
114 printk(KERN_ERR
"Unable to get revision detection GPIO pins\n");
115 omap3_beagle_version
= OMAP3BEAGLE_BOARD_UNKN
;
119 beagle_rev
= gpio_get_value(171) | (gpio_get_value(172) << 1)
120 | (gpio_get_value(173) << 2);
122 gpio_free_array(omap3_beagle_rev_gpios
,
123 ARRAY_SIZE(omap3_beagle_rev_gpios
));
125 switch (beagle_rev
) {
127 printk(KERN_INFO
"OMAP3 Beagle Rev: Ax/Bx\n");
128 omap3_beagle_version
= OMAP3BEAGLE_BOARD_AXBX
;
129 beagle_config
.mmc1_gpio_wp
= 29;
130 beagle_config
.dvi_pd_gpio
= 170;
131 beagle_config
.usr_button_gpio
= 7;
134 printk(KERN_INFO
"OMAP3 Beagle Rev: C1/C2/C3\n");
135 omap3_beagle_version
= OMAP3BEAGLE_BOARD_C1_3
;
136 beagle_config
.mmc1_gpio_wp
= 23;
137 beagle_config
.dvi_pd_gpio
= 170;
138 beagle_config
.usr_button_gpio
= 7;
141 printk(KERN_INFO
"OMAP3 Beagle Rev: C4\n");
142 omap3_beagle_version
= OMAP3BEAGLE_BOARD_C4
;
143 beagle_config
.mmc1_gpio_wp
= 23;
144 beagle_config
.dvi_pd_gpio
= 170;
145 beagle_config
.usr_button_gpio
= 7;
148 printk(KERN_INFO
"OMAP3 Beagle Rev: xM Ax/Bx\n");
149 omap3_beagle_version
= OMAP3BEAGLE_BOARD_XM
;
150 beagle_config
.usb_pwr_level
= GPIOF_OUT_INIT_HIGH
;
151 beagle_config
.mmc_caps
&= ~MMC_CAP_8_BIT_DATA
;
154 printk(KERN_INFO
"OMAP3 Beagle Rev: xM C\n");
155 omap3_beagle_version
= OMAP3BEAGLE_BOARD_XMC
;
156 beagle_config
.mmc_caps
&= ~MMC_CAP_8_BIT_DATA
;
159 printk(KERN_INFO
"OMAP3 Beagle Rev: unknown %hd\n", beagle_rev
);
160 omap3_beagle_version
= OMAP3BEAGLE_BOARD_UNKN
;
164 static struct mtd_partition omap3beagle_nand_partitions
[] = {
165 /* All the partition sizes are listed in terms of NAND block size */
169 .size
= 4 * NAND_BLOCK_SIZE
,
170 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
174 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x80000 */
175 .size
= 15 * NAND_BLOCK_SIZE
,
176 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
179 .name
= "U-Boot Env",
180 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x260000 */
181 .size
= 1 * NAND_BLOCK_SIZE
,
185 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x280000 */
186 .size
= 32 * NAND_BLOCK_SIZE
,
189 .name
= "File System",
190 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x680000 */
191 .size
= MTDPART_SIZ_FULL
,
197 static struct tfp410_platform_data dvi_panel
= {
199 .power_down_gpio
= -1,
202 static struct omap_dss_device beagle_dvi_device
= {
203 .type
= OMAP_DISPLAY_TYPE_DPI
,
205 .driver_name
= "tfp410",
207 .phy
.dpi
.data_lines
= 24,
210 static struct omap_dss_device beagle_tv_device
= {
212 .driver_name
= "venc",
213 .type
= OMAP_DISPLAY_TYPE_VENC
,
214 .phy
.venc
.type
= OMAP_DSS_VENC_TYPE_SVIDEO
,
217 static struct omap_dss_device
*beagle_dss_devices
[] = {
222 static struct omap_dss_board_info beagle_dss_data
= {
223 .num_devices
= ARRAY_SIZE(beagle_dss_devices
),
224 .devices
= beagle_dss_devices
,
225 .default_device
= &beagle_dvi_device
,
228 #include "sdram-micron-mt46h32m32lf-6.h"
230 static struct omap2_hsmmc_info mmc
[] = {
233 .caps
= MMC_CAP_4_BIT_DATA
,
240 static struct regulator_consumer_supply beagle_vmmc1_supply
[] = {
241 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
244 static struct regulator_consumer_supply beagle_vsim_supply
[] = {
245 REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
248 static struct gpio_led gpio_leds
[];
250 static int beagle_twl_gpio_setup(struct device
*dev
,
251 unsigned gpio
, unsigned ngpio
)
255 mmc
[0].gpio_wp
= beagle_config
.mmc1_gpio_wp
;
256 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
257 mmc
[0].gpio_cd
= gpio
+ 0;
258 omap_hsmmc_late_init(mmc
);
261 * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
262 * high / others active low)
263 * DVI reset GPIO is different between beagle revisions
265 /* Valid for all -xM revisions */
266 if (cpu_is_omap3630()) {
268 * gpio + 1 on Xm controls the TFP410's enable line (active low)
269 * gpio + 2 control varies depending on the board rev as below:
270 * P7/P8 revisions(prototype): Camera EN
271 * A2+ revisions (production): LDO (DVI, serial, led blocks)
273 r
= gpio_request_one(gpio
+ 1, GPIOF_OUT_INIT_LOW
,
276 pr_err("%s: unable to configure nDVI_PWR_EN\n",
279 beagle_config
.dvi_pd_gpio
= gpio
+ 2;
283 * REVISIT: need ehci-omap hooks for external VBUS
284 * power switch and overcurrent detect
286 if (gpio_request_one(gpio
+ 1, GPIOF_IN
, "EHCI_nOC"))
287 pr_err("%s: unable to configure EHCI_nOC\n", __func__
);
289 dvi_panel
.power_down_gpio
= beagle_config
.dvi_pd_gpio
;
291 gpio_request_one(gpio
+ TWL4030_GPIO_MAX
, beagle_config
.usb_pwr_level
,
294 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
295 gpio_leds
[2].gpio
= gpio
+ TWL4030_GPIO_MAX
+ 1;
300 static struct twl4030_gpio_platform_data beagle_gpio_data
= {
303 .pulldowns
= BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
304 | BIT(15) | BIT(16) | BIT(17),
305 .setup
= beagle_twl_gpio_setup
,
308 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
309 static struct regulator_init_data beagle_vmmc1
= {
313 .valid_modes_mask
= REGULATOR_MODE_NORMAL
314 | REGULATOR_MODE_STANDBY
,
315 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
316 | REGULATOR_CHANGE_MODE
317 | REGULATOR_CHANGE_STATUS
,
319 .num_consumer_supplies
= ARRAY_SIZE(beagle_vmmc1_supply
),
320 .consumer_supplies
= beagle_vmmc1_supply
,
323 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
324 static struct regulator_init_data beagle_vsim
= {
328 .valid_modes_mask
= REGULATOR_MODE_NORMAL
329 | REGULATOR_MODE_STANDBY
,
330 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
331 | REGULATOR_CHANGE_MODE
332 | REGULATOR_CHANGE_STATUS
,
334 .num_consumer_supplies
= ARRAY_SIZE(beagle_vsim_supply
),
335 .consumer_supplies
= beagle_vsim_supply
,
338 static struct twl4030_platform_data beagle_twldata
= {
339 /* platform_data for children goes here */
340 .gpio
= &beagle_gpio_data
,
341 .vmmc1
= &beagle_vmmc1
,
342 .vsim
= &beagle_vsim
,
345 static struct i2c_board_info __initdata beagle_i2c_eeprom
[] = {
347 I2C_BOARD_INFO("eeprom", 0x50),
351 static int __init
omap3_beagle_i2c_init(void)
353 omap3_pmic_get_config(&beagle_twldata
,
354 TWL_COMMON_PDATA_USB
| TWL_COMMON_PDATA_MADC
|
355 TWL_COMMON_PDATA_AUDIO
,
356 TWL_COMMON_REGULATOR_VDAC
| TWL_COMMON_REGULATOR_VPLL2
);
358 beagle_twldata
.vpll2
->constraints
.name
= "VDVI";
360 omap3_pmic_init("twl4030", &beagle_twldata
);
361 /* Bus 3 is attached to the DVI port where devices like the pico DLP
362 * projector don't work reliably with 400kHz */
363 omap_register_i2c_bus(3, 100, beagle_i2c_eeprom
, ARRAY_SIZE(beagle_i2c_eeprom
));
367 static struct gpio_led gpio_leds
[] = {
369 .name
= "beagleboard::usr0",
370 .default_trigger
= "heartbeat",
374 .name
= "beagleboard::usr1",
375 .default_trigger
= "mmc0",
379 .name
= "beagleboard::pmu_stat",
380 .gpio
= -EINVAL
, /* gets replaced */
385 static struct gpio_led_platform_data gpio_led_info
= {
387 .num_leds
= ARRAY_SIZE(gpio_leds
),
390 static struct platform_device leds_gpio
= {
394 .platform_data
= &gpio_led_info
,
398 static struct gpio_keys_button gpio_buttons
[] = {
401 /* Dynamically assigned depending on board */
408 static struct gpio_keys_platform_data gpio_key_info
= {
409 .buttons
= gpio_buttons
,
410 .nbuttons
= ARRAY_SIZE(gpio_buttons
),
413 static struct platform_device keys_gpio
= {
417 .platform_data
= &gpio_key_info
,
421 static struct platform_device madc_hwmon
= {
422 .name
= "twl4030_madc_hwmon",
426 static struct platform_device
*omap3_beagle_devices
[] __initdata
= {
432 static const struct usbhs_omap_board_data usbhs_bdata __initconst
= {
434 .port_mode
[0] = OMAP_USBHS_PORT_MODE_UNUSED
,
435 .port_mode
[1] = OMAP_EHCI_PORT_MODE_PHY
,
436 .port_mode
[2] = OMAP_USBHS_PORT_MODE_UNUSED
,
439 .reset_gpio_port
[0] = -EINVAL
,
440 .reset_gpio_port
[1] = 147,
441 .reset_gpio_port
[2] = -EINVAL
444 #ifdef CONFIG_OMAP_MUX
445 static struct omap_board_mux board_mux
[] __initdata
= {
446 { .reg_offset
= OMAP_MUX_TERMINATOR
},
450 static void __init
beagle_opp_init(void)
454 /* Initialize the omap3 opp table */
455 if (omap3_opp_init()) {
456 pr_err("%s: opp default init failed\n", __func__
);
460 /* Custom OPP enabled for all xM versions */
461 if (cpu_is_omap3630()) {
462 struct device
*mpu_dev
, *iva_dev
;
464 mpu_dev
= omap_device_get_by_hwmod_name("mpu");
465 iva_dev
= omap_device_get_by_hwmod_name("iva");
467 if (IS_ERR(mpu_dev
) || IS_ERR(iva_dev
)) {
468 pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
469 __func__
, mpu_dev
, iva_dev
);
472 /* Enable MPU 1GHz and lower opps */
473 r
= opp_enable(mpu_dev
, 800000000);
474 /* TODO: MPU 1GHz needs SR and ABB */
476 /* Enable IVA 800MHz and lower opps */
477 r
|= opp_enable(iva_dev
, 660000000);
478 /* TODO: DSP 800MHz needs SR and ABB */
480 pr_err("%s: failed to enable higher opp %d\n",
483 * Cleanup - disable the higher freqs - we dont care
486 opp_disable(mpu_dev
, 800000000);
487 opp_disable(iva_dev
, 660000000);
493 static void __init
omap3_beagle_init(void)
495 omap3_mux_init(board_mux
, OMAP_PACKAGE_CBB
);
496 omap3_beagle_init_rev();
498 if (gpio_is_valid(beagle_config
.mmc1_gpio_wp
))
499 omap_mux_init_gpio(beagle_config
.mmc1_gpio_wp
, OMAP_PIN_INPUT
);
500 mmc
[0].caps
= beagle_config
.mmc_caps
;
501 omap_hsmmc_init(mmc
);
503 omap3_beagle_i2c_init();
505 gpio_buttons
[0].gpio
= beagle_config
.usr_button_gpio
;
507 platform_add_devices(omap3_beagle_devices
,
508 ARRAY_SIZE(omap3_beagle_devices
));
509 if (gpio_is_valid(beagle_config
.dvi_pd_gpio
))
510 omap_mux_init_gpio(beagle_config
.dvi_pd_gpio
, OMAP_PIN_OUTPUT
);
511 omap_display_init(&beagle_dss_data
);
513 omap_sdrc_init(mt46h32m32lf6_sdrc_params
,
514 mt46h32m32lf6_sdrc_params
);
517 usbhs_init(&usbhs_bdata
);
518 board_nand_init(omap3beagle_nand_partitions
,
519 ARRAY_SIZE(omap3beagle_nand_partitions
), NAND_CS
,
520 NAND_BUSWIDTH_16
, NULL
);
521 omap_twl4030_audio_init("omap3beagle");
523 /* Ensure msecure is mux'd to be able to set the RTC. */
524 omap_mux_init_signal("sys_drm_msecure", OMAP_PIN_OFF_OUTPUT_HIGH
);
526 /* Ensure SDRC pins are mux'd for self-refresh */
527 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT
);
528 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
,