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 <mach/hardware.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>
42 #include <plat/board.h>
43 #include <plat/common.h>
44 #include <plat/display.h>
45 #include <plat/panel-generic-dpi.h>
46 #include <plat/gpmc.h>
47 #include <plat/nand.h>
49 #include <plat/omap_device.h>
56 #define NAND_BLOCK_SIZE SZ_128K
59 * OMAP3 Beagle revision
60 * Run time detection of Beagle revision is done by reading GPIO.
62 * AXBX = GPIO173, GPIO172, GPIO171: 1 1 1
63 * C1_3 = GPIO173, GPIO172, GPIO171: 1 1 0
64 * C4 = GPIO173, GPIO172, GPIO171: 1 0 1
65 * XM = GPIO173, GPIO172, GPIO171: 0 0 0
68 OMAP3BEAGLE_BOARD_UNKN
= 0,
69 OMAP3BEAGLE_BOARD_AXBX
,
70 OMAP3BEAGLE_BOARD_C1_3
,
75 static u8 omap3_beagle_version
;
77 static u8
omap3_beagle_get_rev(void)
79 return omap3_beagle_version
;
82 static void __init
omap3_beagle_init_rev(void)
87 omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP
);
88 omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP
);
89 omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP
);
91 ret
= gpio_request(171, "rev_id_0");
95 ret
= gpio_request(172, "rev_id_1");
99 ret
= gpio_request(173, "rev_id_2");
103 gpio_direction_input(171);
104 gpio_direction_input(172);
105 gpio_direction_input(173);
107 beagle_rev
= gpio_get_value(171) | (gpio_get_value(172) << 1)
108 | (gpio_get_value(173) << 2);
110 switch (beagle_rev
) {
112 printk(KERN_INFO
"OMAP3 Beagle Rev: Ax/Bx\n");
113 omap3_beagle_version
= OMAP3BEAGLE_BOARD_AXBX
;
116 printk(KERN_INFO
"OMAP3 Beagle Rev: C1/C2/C3\n");
117 omap3_beagle_version
= OMAP3BEAGLE_BOARD_C1_3
;
120 printk(KERN_INFO
"OMAP3 Beagle Rev: C4\n");
121 omap3_beagle_version
= OMAP3BEAGLE_BOARD_C4
;
124 printk(KERN_INFO
"OMAP3 Beagle Rev: xM\n");
125 omap3_beagle_version
= OMAP3BEAGLE_BOARD_XM
;
128 printk(KERN_INFO
"OMAP3 Beagle Rev: unknown %hd\n", beagle_rev
);
129 omap3_beagle_version
= OMAP3BEAGLE_BOARD_UNKN
;
139 printk(KERN_ERR
"Unable to get revision detection GPIO pins\n");
140 omap3_beagle_version
= OMAP3BEAGLE_BOARD_UNKN
;
145 static struct mtd_partition omap3beagle_nand_partitions
[] = {
146 /* All the partition sizes are listed in terms of NAND block size */
150 .size
= 4 * NAND_BLOCK_SIZE
,
151 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
155 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x80000 */
156 .size
= 15 * NAND_BLOCK_SIZE
,
157 .mask_flags
= MTD_WRITEABLE
, /* force read-only */
160 .name
= "U-Boot Env",
161 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x260000 */
162 .size
= 1 * NAND_BLOCK_SIZE
,
166 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x280000 */
167 .size
= 32 * NAND_BLOCK_SIZE
,
170 .name
= "File System",
171 .offset
= MTDPART_OFS_APPEND
, /* Offset = 0x680000 */
172 .size
= MTDPART_SIZ_FULL
,
176 static struct omap_nand_platform_data omap3beagle_nand_data
= {
177 .options
= NAND_BUSWIDTH_16
,
178 .parts
= omap3beagle_nand_partitions
,
179 .nr_parts
= ARRAY_SIZE(omap3beagle_nand_partitions
),
180 .dma_channel
= -1, /* disable DMA in OMAP NAND driver */
187 static int beagle_enable_dvi(struct omap_dss_device
*dssdev
)
189 if (gpio_is_valid(dssdev
->reset_gpio
))
190 gpio_set_value(dssdev
->reset_gpio
, 1);
195 static void beagle_disable_dvi(struct omap_dss_device
*dssdev
)
197 if (gpio_is_valid(dssdev
->reset_gpio
))
198 gpio_set_value(dssdev
->reset_gpio
, 0);
201 static struct panel_generic_dpi_data dvi_panel
= {
203 .platform_enable
= beagle_enable_dvi
,
204 .platform_disable
= beagle_disable_dvi
,
207 static struct omap_dss_device beagle_dvi_device
= {
208 .type
= OMAP_DISPLAY_TYPE_DPI
,
210 .driver_name
= "generic_dpi_panel",
212 .phy
.dpi
.data_lines
= 24,
213 .reset_gpio
= -EINVAL
,
216 static struct omap_dss_device beagle_tv_device
= {
218 .driver_name
= "venc",
219 .type
= OMAP_DISPLAY_TYPE_VENC
,
220 .phy
.venc
.type
= OMAP_DSS_VENC_TYPE_SVIDEO
,
223 static struct omap_dss_device
*beagle_dss_devices
[] = {
228 static struct omap_dss_board_info beagle_dss_data
= {
229 .num_devices
= ARRAY_SIZE(beagle_dss_devices
),
230 .devices
= beagle_dss_devices
,
231 .default_device
= &beagle_dvi_device
,
234 static struct regulator_consumer_supply beagle_vdac_supply
=
235 REGULATOR_SUPPLY("vdda_dac", "omapdss_venc");
237 static struct regulator_consumer_supply beagle_vdvi_supplies
[] = {
238 REGULATOR_SUPPLY("vdds_dsi", "omapdss"),
239 REGULATOR_SUPPLY("vdds_dsi", "omapdss_dsi1"),
242 static void __init
beagle_display_init(void)
246 r
= gpio_request(beagle_dvi_device
.reset_gpio
, "DVI reset");
248 printk(KERN_ERR
"Unable to get DVI reset GPIO\n");
252 gpio_direction_output(beagle_dvi_device
.reset_gpio
, 0);
255 #include "sdram-micron-mt46h32m32lf-6.h"
257 static struct omap2_hsmmc_info mmc
[] = {
260 .caps
= MMC_CAP_4_BIT_DATA
| MMC_CAP_8_BIT_DATA
,
266 static struct regulator_consumer_supply beagle_vmmc1_supply
= {
270 static struct regulator_consumer_supply beagle_vsim_supply
= {
271 .supply
= "vmmc_aux",
274 static struct gpio_led gpio_leds
[];
276 static int beagle_twl_gpio_setup(struct device
*dev
,
277 unsigned gpio
, unsigned ngpio
)
281 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM
) {
282 mmc
[0].gpio_wp
= -EINVAL
;
283 } else if ((omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C1_3
) ||
284 (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C4
)) {
285 omap_mux_init_gpio(23, OMAP_PIN_INPUT
);
288 omap_mux_init_gpio(29, OMAP_PIN_INPUT
);
290 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
291 mmc
[0].gpio_cd
= gpio
+ 0;
292 omap2_hsmmc_init(mmc
);
294 /* link regulators to MMC adapters */
295 beagle_vmmc1_supply
.dev
= mmc
[0].dev
;
296 beagle_vsim_supply
.dev
= mmc
[0].dev
;
298 /* REVISIT: need ehci-omap hooks for external VBUS
299 * power switch and overcurrent detect
301 if (omap3_beagle_get_rev() != OMAP3BEAGLE_BOARD_XM
) {
302 r
= gpio_request(gpio
+ 1, "EHCI_nOC");
304 r
= gpio_direction_input(gpio
+ 1);
309 pr_err("%s: unable to configure EHCI_nOC\n", __func__
);
313 * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
314 * high / others active low)
316 gpio_request(gpio
+ TWL4030_GPIO_MAX
, "nEN_USB_PWR");
317 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM
)
318 gpio_direction_output(gpio
+ TWL4030_GPIO_MAX
, 1);
320 gpio_direction_output(gpio
+ TWL4030_GPIO_MAX
, 0);
322 /* DVI reset GPIO is different between beagle revisions */
323 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM
)
324 beagle_dvi_device
.reset_gpio
= 129;
326 beagle_dvi_device
.reset_gpio
= 170;
328 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
329 gpio_leds
[2].gpio
= gpio
+ TWL4030_GPIO_MAX
+ 1;
332 * gpio + 1 on Xm controls the TFP410's enable line (active low)
333 * gpio + 2 control varies depending on the board rev as follows:
334 * P7/P8 revisions(prototype): Camera EN
335 * A2+ revisions (production): LDO (supplies DVI, serial, led blocks)
337 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM
) {
338 r
= gpio_request(gpio
+ 1, "nDVI_PWR_EN");
340 r
= gpio_direction_output(gpio
+ 1, 0);
345 pr_err("%s: unable to configure nDVI_PWR_EN\n",
347 r
= gpio_request(gpio
+ 2, "DVI_LDO_EN");
349 r
= gpio_direction_output(gpio
+ 2, 1);
354 pr_err("%s: unable to configure DVI_LDO_EN\n",
361 static struct twl4030_gpio_platform_data beagle_gpio_data
= {
362 .gpio_base
= OMAP_MAX_GPIO_LINES
,
363 .irq_base
= TWL4030_GPIO_IRQ_BASE
,
364 .irq_end
= TWL4030_GPIO_IRQ_END
,
367 .pulldowns
= BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
368 | BIT(15) | BIT(16) | BIT(17),
369 .setup
= beagle_twl_gpio_setup
,
372 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
373 static struct regulator_init_data beagle_vmmc1
= {
377 .valid_modes_mask
= REGULATOR_MODE_NORMAL
378 | REGULATOR_MODE_STANDBY
,
379 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
380 | REGULATOR_CHANGE_MODE
381 | REGULATOR_CHANGE_STATUS
,
383 .num_consumer_supplies
= 1,
384 .consumer_supplies
= &beagle_vmmc1_supply
,
387 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
388 static struct regulator_init_data beagle_vsim
= {
392 .valid_modes_mask
= REGULATOR_MODE_NORMAL
393 | REGULATOR_MODE_STANDBY
,
394 .valid_ops_mask
= REGULATOR_CHANGE_VOLTAGE
395 | REGULATOR_CHANGE_MODE
396 | REGULATOR_CHANGE_STATUS
,
398 .num_consumer_supplies
= 1,
399 .consumer_supplies
= &beagle_vsim_supply
,
402 /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
403 static struct regulator_init_data beagle_vdac
= {
407 .valid_modes_mask
= REGULATOR_MODE_NORMAL
408 | REGULATOR_MODE_STANDBY
,
409 .valid_ops_mask
= REGULATOR_CHANGE_MODE
410 | REGULATOR_CHANGE_STATUS
,
412 .num_consumer_supplies
= 1,
413 .consumer_supplies
= &beagle_vdac_supply
,
416 /* VPLL2 for digital video outputs */
417 static struct regulator_init_data beagle_vpll2
= {
422 .valid_modes_mask
= REGULATOR_MODE_NORMAL
423 | REGULATOR_MODE_STANDBY
,
424 .valid_ops_mask
= REGULATOR_CHANGE_MODE
425 | REGULATOR_CHANGE_STATUS
,
427 .num_consumer_supplies
= ARRAY_SIZE(beagle_vdvi_supplies
),
428 .consumer_supplies
= beagle_vdvi_supplies
,
431 static struct twl4030_usb_data beagle_usb_data
= {
432 .usb_mode
= T2_USB_MODE_ULPI
,
435 static struct twl4030_codec_audio_data beagle_audio_data
;
437 static struct twl4030_codec_data beagle_codec_data
= {
438 .audio_mclk
= 26000000,
439 .audio
= &beagle_audio_data
,
442 static struct twl4030_platform_data beagle_twldata
= {
443 .irq_base
= TWL4030_IRQ_BASE
,
444 .irq_end
= TWL4030_IRQ_END
,
446 /* platform_data for children goes here */
447 .usb
= &beagle_usb_data
,
448 .gpio
= &beagle_gpio_data
,
449 .codec
= &beagle_codec_data
,
450 .vmmc1
= &beagle_vmmc1
,
451 .vsim
= &beagle_vsim
,
452 .vdac
= &beagle_vdac
,
453 .vpll2
= &beagle_vpll2
,
456 static struct i2c_board_info __initdata beagle_i2c_boardinfo
[] = {
458 I2C_BOARD_INFO("twl4030", 0x48),
459 .flags
= I2C_CLIENT_WAKE
,
460 .irq
= INT_34XX_SYS_NIRQ
,
461 .platform_data
= &beagle_twldata
,
465 static struct i2c_board_info __initdata beagle_i2c_eeprom
[] = {
467 I2C_BOARD_INFO("eeprom", 0x50),
471 static int __init
omap3_beagle_i2c_init(void)
473 omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo
,
474 ARRAY_SIZE(beagle_i2c_boardinfo
));
475 /* Bus 3 is attached to the DVI port where devices like the pico DLP
476 * projector don't work reliably with 400kHz */
477 omap_register_i2c_bus(3, 100, beagle_i2c_eeprom
, ARRAY_SIZE(beagle_i2c_eeprom
));
481 static struct gpio_led gpio_leds
[] = {
483 .name
= "beagleboard::usr0",
484 .default_trigger
= "heartbeat",
488 .name
= "beagleboard::usr1",
489 .default_trigger
= "mmc0",
493 .name
= "beagleboard::pmu_stat",
494 .gpio
= -EINVAL
, /* gets replaced */
499 static struct gpio_led_platform_data gpio_led_info
= {
501 .num_leds
= ARRAY_SIZE(gpio_leds
),
504 static struct platform_device leds_gpio
= {
508 .platform_data
= &gpio_led_info
,
512 static struct gpio_keys_button gpio_buttons
[] = {
521 static struct gpio_keys_platform_data gpio_key_info
= {
522 .buttons
= gpio_buttons
,
523 .nbuttons
= ARRAY_SIZE(gpio_buttons
),
526 static struct platform_device keys_gpio
= {
530 .platform_data
= &gpio_key_info
,
534 static void __init
omap3_beagle_init_early(void)
536 omap2_init_common_infrastructure();
537 omap2_init_common_devices(mt46h32m32lf6_sdrc_params
,
538 mt46h32m32lf6_sdrc_params
);
541 static void __init
omap3_beagle_init_irq(void)
544 #ifdef CONFIG_OMAP_32K_TIMER
545 omap2_gp_clockevent_set_gptimer(12);
549 static struct platform_device
*omap3_beagle_devices
[] __initdata
= {
554 static void __init
omap3beagle_flash_init(void)
557 u8 nandcs
= GPMC_CS_NUM
+ 1;
559 /* find out the chip-select on which NAND exists */
560 while (cs
< GPMC_CS_NUM
) {
562 ret
= gpmc_cs_read_reg(cs
, GPMC_CS_CONFIG1
);
564 if ((ret
& 0xC00) == 0x800) {
565 printk(KERN_INFO
"Found NAND on CS%d\n", cs
);
566 if (nandcs
> GPMC_CS_NUM
)
572 if (nandcs
> GPMC_CS_NUM
) {
573 printk(KERN_INFO
"NAND: Unable to find configuration "
578 if (nandcs
< GPMC_CS_NUM
) {
579 omap3beagle_nand_data
.cs
= nandcs
;
581 printk(KERN_INFO
"Registering NAND on CS%d\n", nandcs
);
582 if (gpmc_nand_init(&omap3beagle_nand_data
) < 0)
583 printk(KERN_ERR
"Unable to register NAND device\n");
587 static const struct usbhs_omap_board_data usbhs_bdata __initconst
= {
589 .port_mode
[0] = OMAP_EHCI_PORT_MODE_PHY
,
590 .port_mode
[1] = OMAP_EHCI_PORT_MODE_PHY
,
591 .port_mode
[2] = OMAP_USBHS_PORT_MODE_UNUSED
,
594 .reset_gpio_port
[0] = -EINVAL
,
595 .reset_gpio_port
[1] = 147,
596 .reset_gpio_port
[2] = -EINVAL
599 #ifdef CONFIG_OMAP_MUX
600 static struct omap_board_mux board_mux
[] __initdata
= {
601 { .reg_offset
= OMAP_MUX_TERMINATOR
},
605 static struct omap_musb_board_data musb_board_data
= {
606 .interface_type
= MUSB_INTERFACE_ULPI
,
611 static void __init
beagle_opp_init(void)
615 /* Initialize the omap3 opp table */
616 if (omap3_opp_init()) {
617 pr_err("%s: opp default init failed\n", __func__
);
621 /* Custom OPP enabled for XM */
622 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM
) {
623 struct omap_hwmod
*mh
= omap_hwmod_lookup("mpu");
624 struct omap_hwmod
*dh
= omap_hwmod_lookup("iva");
628 pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
632 /* Enable MPU 1GHz and lower opps */
633 dev
= &mh
->od
->pdev
.dev
;
634 r
= opp_enable(dev
, 800000000);
635 /* TODO: MPU 1GHz needs SR and ABB */
637 /* Enable IVA 800MHz and lower opps */
638 dev
= &dh
->od
->pdev
.dev
;
639 r
|= opp_enable(dev
, 660000000);
640 /* TODO: DSP 800MHz needs SR and ABB */
642 pr_err("%s: failed to enable higher opp %d\n",
645 * Cleanup - disable the higher freqs - we dont care
648 dev
= &mh
->od
->pdev
.dev
;
649 opp_disable(dev
, 800000000);
650 dev
= &dh
->od
->pdev
.dev
;
651 opp_disable(dev
, 660000000);
657 static void __init
omap3_beagle_init(void)
659 omap3_mux_init(board_mux
, OMAP_PACKAGE_CBB
);
660 omap3_beagle_init_rev();
661 omap3_beagle_i2c_init();
662 platform_add_devices(omap3_beagle_devices
,
663 ARRAY_SIZE(omap3_beagle_devices
));
664 omap_display_init(&beagle_dss_data
);
667 omap_mux_init_gpio(170, OMAP_PIN_INPUT
);
668 gpio_request(170, "DVI_nPD");
669 /* REVISIT leave DVI powered down until it's needed ... */
670 gpio_direction_output(170, true);
672 usb_musb_init(&musb_board_data
);
673 usbhs_init(&usbhs_bdata
);
674 omap3beagle_flash_init();
676 /* Ensure SDRC pins are mux'd for self-refresh */
677 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT
);
678 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT
);
680 beagle_display_init();
684 MACHINE_START(OMAP3_BEAGLE
, "OMAP3 Beagle Board")
685 /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
686 .boot_params
= 0x80000100,
687 .reserve
= omap_reserve
,
688 .map_io
= omap3_map_io
,
689 .init_early
= omap3_beagle_init_early
,
690 .init_irq
= omap3_beagle_init_irq
,
691 .init_machine
= omap3_beagle_init
,
692 .timer
= &omap_timer
,