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>
27 #include <linux/mtd/mtd.h>
28 #include <linux/mtd/partitions.h>
29 #include <linux/mtd/nand.h>
30 #include <linux/mmc/host.h>
32 #include <linux/regulator/machine.h>
33 #include <linux/i2c/twl.h>
35 #include <mach/hardware.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>
41 #include <plat/board.h>
42 #include <plat/common.h>
43 #include <plat/display.h>
44 #include <plat/gpmc.h>
45 #include <plat/nand.h>
52 #define NAND_BLOCK_SIZE SZ_128K
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 * XM = GPIO173, GPIO172, GPIO171: 0 0 0
64 OMAP3BEAGLE_BOARD_UNKN = 0,
65 OMAP3BEAGLE_BOARD_AXBX,
66 OMAP3BEAGLE_BOARD_C1_3,
71 static u8 omap3_beagle_version;
73 static u8 omap3_beagle_get_rev(void)
75 return omap3_beagle_version;
78 static void __init omap3_beagle_init_rev(void)
83 omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP);
84 omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP);
85 omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP);
87 ret = gpio_request(171, "rev_id_0");
91 ret = gpio_request(172, "rev_id_1");
95 ret = gpio_request(173, "rev_id_2");
99 gpio_direction_input(171);
100 gpio_direction_input(172);
101 gpio_direction_input(173);
103 beagle_rev = gpio_get_value(171) | (gpio_get_value(172) << 1)
104 | (gpio_get_value(173) << 2);
106 switch (beagle_rev) {
108 printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n");
109 omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX;
112 printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n");
113 omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3;
116 printk(KERN_INFO "OMAP3 Beagle Rev: C4\n");
117 omap3_beagle_version = OMAP3BEAGLE_BOARD_C4;
120 printk(KERN_INFO "OMAP3 Beagle Rev: xM\n");
121 omap3_beagle_version = OMAP3BEAGLE_BOARD_XM;
124 printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev);
125 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
135 printk(KERN_ERR "Unable to get revision detection GPIO pins\n");
136 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
141 static struct mtd_partition omap3beagle_nand_partitions[] = {
142 /* All the partition sizes are listed in terms of NAND block size */
146 .size = 4 * NAND_BLOCK_SIZE,
147 .mask_flags = MTD_WRITEABLE, /* force read-only */
151 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
152 .size = 15 * NAND_BLOCK_SIZE,
153 .mask_flags = MTD_WRITEABLE, /* force read-only */
156 .name = "U-Boot Env",
157 .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
158 .size = 1 * NAND_BLOCK_SIZE,
162 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
163 .size = 32 * NAND_BLOCK_SIZE,
166 .name = "File System",
167 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
168 .size = MTDPART_SIZ_FULL,
172 static struct omap_nand_platform_data omap3beagle_nand_data = {
173 .options = NAND_BUSWIDTH_16,
174 .parts = omap3beagle_nand_partitions,
175 .nr_parts = ARRAY_SIZE(omap3beagle_nand_partitions),
176 .dma_channel = -1, /* disable DMA in OMAP NAND driver */
183 static int beagle_enable_dvi(struct omap_dss_device *dssdev)
185 if (gpio_is_valid(dssdev->reset_gpio))
186 gpio_set_value(dssdev->reset_gpio, 1);
191 static void beagle_disable_dvi(struct omap_dss_device *dssdev)
193 if (gpio_is_valid(dssdev->reset_gpio))
194 gpio_set_value(dssdev->reset_gpio, 0);
197 static struct omap_dss_device beagle_dvi_device = {
198 .type = OMAP_DISPLAY_TYPE_DPI,
200 .driver_name = "generic_panel",
201 .phy.dpi.data_lines = 24,
202 .reset_gpio = -EINVAL,
203 .platform_enable = beagle_enable_dvi,
204 .platform_disable = beagle_disable_dvi,
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 static struct platform_device beagle_dss_device = {
229 .platform_data = &beagle_dss_data,
233 static struct regulator_consumer_supply beagle_vdac_supply =
234 REGULATOR_SUPPLY("vdda_dac", "omapdss");
236 static struct regulator_consumer_supply beagle_vdvi_supply =
237 REGULATOR_SUPPLY("vdds_dsi", "omapdss");
239 static void __init beagle_display_init(void)
243 r = gpio_request(beagle_dvi_device.reset_gpio, "DVI reset");
245 printk(KERN_ERR "Unable to get DVI reset GPIO\n");
249 gpio_direction_output(beagle_dvi_device.reset_gpio, 0);
252 #include "sdram-micron-mt46h32m32lf-6.h"
254 static struct omap2_hsmmc_info mmc[] = {
257 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
263 static struct regulator_consumer_supply beagle_vmmc1_supply = {
267 static struct regulator_consumer_supply beagle_vsim_supply = {
268 .supply = "vmmc_aux",
271 static struct gpio_led gpio_leds[];
273 static int beagle_twl_gpio_setup(struct device *dev,
274 unsigned gpio, unsigned ngpio)
278 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
279 mmc[0].gpio_wp = -EINVAL;
280 } else if ((omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C1_3) ||
281 (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C4)) {
282 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
285 omap_mux_init_gpio(29, OMAP_PIN_INPUT);
287 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
288 mmc[0].gpio_cd = gpio + 0;
289 omap2_hsmmc_init(mmc);
291 /* link regulators to MMC adapters */
292 beagle_vmmc1_supply.dev = mmc[0].dev;
293 beagle_vsim_supply.dev = mmc[0].dev;
295 /* REVISIT: need ehci-omap hooks for external VBUS
296 * power switch and overcurrent detect
298 if (omap3_beagle_get_rev() != OMAP3BEAGLE_BOARD_XM) {
299 r = gpio_request(gpio + 1, "EHCI_nOC");
301 r = gpio_direction_input(gpio + 1);
306 pr_err("%s: unable to configure EHCI_nOC\n", __func__);
310 * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
311 * high / others active low)
313 gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
314 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM)
315 gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);
317 gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
319 /* DVI reset GPIO is different between beagle revisions */
320 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM)
321 beagle_dvi_device.reset_gpio = 129;
323 beagle_dvi_device.reset_gpio = 170;
325 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
326 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
329 * gpio + 1 on Xm controls the TFP410's enable line (active low)
330 * gpio + 2 control varies depending on the board rev as follows:
331 * P7/P8 revisions(prototype): Camera EN
332 * A2+ revisions (production): LDO (supplies DVI, serial, led blocks)
334 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
335 r = gpio_request(gpio + 1, "nDVI_PWR_EN");
337 r = gpio_direction_output(gpio + 1, 0);
342 pr_err("%s: unable to configure nDVI_PWR_EN\n",
344 r = gpio_request(gpio + 2, "DVI_LDO_EN");
346 r = gpio_direction_output(gpio + 2, 1);
351 pr_err("%s: unable to configure DVI_LDO_EN\n",
358 static struct twl4030_gpio_platform_data beagle_gpio_data = {
359 .gpio_base = OMAP_MAX_GPIO_LINES,
360 .irq_base = TWL4030_GPIO_IRQ_BASE,
361 .irq_end = TWL4030_GPIO_IRQ_END,
364 .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
365 | BIT(15) | BIT(16) | BIT(17),
366 .setup = beagle_twl_gpio_setup,
369 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
370 static struct regulator_init_data beagle_vmmc1 = {
374 .valid_modes_mask = REGULATOR_MODE_NORMAL
375 | REGULATOR_MODE_STANDBY,
376 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
377 | REGULATOR_CHANGE_MODE
378 | REGULATOR_CHANGE_STATUS,
380 .num_consumer_supplies = 1,
381 .consumer_supplies = &beagle_vmmc1_supply,
384 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
385 static struct regulator_init_data beagle_vsim = {
389 .valid_modes_mask = REGULATOR_MODE_NORMAL
390 | REGULATOR_MODE_STANDBY,
391 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
392 | REGULATOR_CHANGE_MODE
393 | REGULATOR_CHANGE_STATUS,
395 .num_consumer_supplies = 1,
396 .consumer_supplies = &beagle_vsim_supply,
399 /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
400 static struct regulator_init_data beagle_vdac = {
404 .valid_modes_mask = REGULATOR_MODE_NORMAL
405 | REGULATOR_MODE_STANDBY,
406 .valid_ops_mask = REGULATOR_CHANGE_MODE
407 | REGULATOR_CHANGE_STATUS,
409 .num_consumer_supplies = 1,
410 .consumer_supplies = &beagle_vdac_supply,
413 /* VPLL2 for digital video outputs */
414 static struct regulator_init_data beagle_vpll2 = {
419 .valid_modes_mask = REGULATOR_MODE_NORMAL
420 | REGULATOR_MODE_STANDBY,
421 .valid_ops_mask = REGULATOR_CHANGE_MODE
422 | REGULATOR_CHANGE_STATUS,
424 .num_consumer_supplies = 1,
425 .consumer_supplies = &beagle_vdvi_supply,
428 static struct twl4030_usb_data beagle_usb_data = {
429 .usb_mode = T2_USB_MODE_ULPI,
432 static struct twl4030_codec_audio_data beagle_audio_data = {
433 .audio_mclk = 26000000,
436 static struct twl4030_codec_data beagle_codec_data = {
437 .audio_mclk = 26000000,
438 .audio = &beagle_audio_data,
441 static struct twl4030_platform_data beagle_twldata = {
442 .irq_base = TWL4030_IRQ_BASE,
443 .irq_end = TWL4030_IRQ_END,
445 /* platform_data for children goes here */
446 .usb = &beagle_usb_data,
447 .gpio = &beagle_gpio_data,
448 .codec = &beagle_codec_data,
449 .vmmc1 = &beagle_vmmc1,
450 .vsim = &beagle_vsim,
451 .vdac = &beagle_vdac,
452 .vpll2 = &beagle_vpll2,
455 static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
457 I2C_BOARD_INFO("twl4030", 0x48),
458 .flags = I2C_CLIENT_WAKE,
459 .irq = INT_34XX_SYS_NIRQ,
460 .platform_data = &beagle_twldata,
464 static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
466 I2C_BOARD_INFO("eeprom", 0x50),
470 static int __init omap3_beagle_i2c_init(void)
472 omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
473 ARRAY_SIZE(beagle_i2c_boardinfo));
474 /* Bus 3 is attached to the DVI port where devices like the pico DLP
475 * projector don't work reliably with 400kHz */
476 omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
480 static struct gpio_led gpio_leds[] = {
482 .name = "beagleboard::usr0",
483 .default_trigger = "heartbeat",
487 .name = "beagleboard::usr1",
488 .default_trigger = "mmc0",
492 .name = "beagleboard::pmu_stat",
493 .gpio = -EINVAL, /* gets replaced */
498 static struct gpio_led_platform_data gpio_led_info = {
500 .num_leds = ARRAY_SIZE(gpio_leds),
503 static struct platform_device leds_gpio = {
507 .platform_data = &gpio_led_info,
511 static struct gpio_keys_button gpio_buttons[] = {
520 static struct gpio_keys_platform_data gpio_key_info = {
521 .buttons = gpio_buttons,
522 .nbuttons = ARRAY_SIZE(gpio_buttons),
525 static struct platform_device keys_gpio = {
529 .platform_data = &gpio_key_info,
533 static void __init omap3_beagle_init_irq(void)
535 omap2_init_common_infrastructure();
536 omap2_init_common_devices(mt46h32m32lf6_sdrc_params,
537 mt46h32m32lf6_sdrc_params);
539 #ifdef CONFIG_OMAP_32K_TIMER
540 omap2_gp_clockevent_set_gptimer(12);
544 static struct platform_device *omap3_beagle_devices[] __initdata = {
550 static void __init omap3beagle_flash_init(void)
553 u8 nandcs = GPMC_CS_NUM + 1;
555 /* find out the chip-select on which NAND exists */
556 while (cs < GPMC_CS_NUM) {
558 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
560 if ((ret & 0xC00) == 0x800) {
561 printk(KERN_INFO "Found NAND on CS%d\n", cs);
562 if (nandcs > GPMC_CS_NUM)
568 if (nandcs > GPMC_CS_NUM) {
569 printk(KERN_INFO "NAND: Unable to find configuration "
574 if (nandcs < GPMC_CS_NUM) {
575 omap3beagle_nand_data.cs = nandcs;
577 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
578 if (gpmc_nand_init(&omap3beagle_nand_data) < 0)
579 printk(KERN_ERR "Unable to register NAND device\n");
583 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
585 .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
586 .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
587 .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
590 .reset_gpio_port[0] = -EINVAL,
591 .reset_gpio_port[1] = 147,
592 .reset_gpio_port[2] = -EINVAL
595 #ifdef CONFIG_OMAP_MUX
596 static struct omap_board_mux board_mux[] __initdata = {
597 { .reg_offset = OMAP_MUX_TERMINATOR },
601 static struct omap_musb_board_data musb_board_data = {
602 .interface_type = MUSB_INTERFACE_ULPI,
607 static void __init omap3_beagle_init(void)
609 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
610 omap3_beagle_init_rev();
611 omap3_beagle_i2c_init();
612 platform_add_devices(omap3_beagle_devices,
613 ARRAY_SIZE(omap3_beagle_devices));
616 omap_mux_init_gpio(170, OMAP_PIN_INPUT);
617 gpio_request(170, "DVI_nPD");
618 /* REVISIT leave DVI powered down until it's needed ... */
619 gpio_direction_output(170, true);
621 usb_musb_init(&musb_board_data);
622 usb_ehci_init(&ehci_pdata);
623 omap3beagle_flash_init();
625 /* Ensure SDRC pins are mux'd for self-refresh */
626 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
627 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
629 beagle_display_init();
632 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
633 /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
634 .boot_params = 0x80000100,
635 .map_io = omap3_map_io,
636 .reserve = omap_reserve,
637 .init_irq = omap3_beagle_init_irq,
638 .init_machine = omap3_beagle_init,
639 .timer = &omap_timer,