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/panel-generic-dpi.h>
45 #include <plat/gpmc.h>
46 #include <plat/nand.h>
53 #define NAND_BLOCK_SIZE SZ_128K
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 * XM = GPIO173, GPIO172, GPIO171: 0 0 0
65 OMAP3BEAGLE_BOARD_UNKN = 0,
66 OMAP3BEAGLE_BOARD_AXBX,
67 OMAP3BEAGLE_BOARD_C1_3,
72 static u8 omap3_beagle_version;
74 static u8 omap3_beagle_get_rev(void)
76 return omap3_beagle_version;
79 static void __init omap3_beagle_init_rev(void)
84 omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP);
85 omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP);
86 omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP);
88 ret = gpio_request(171, "rev_id_0");
92 ret = gpio_request(172, "rev_id_1");
96 ret = gpio_request(173, "rev_id_2");
100 gpio_direction_input(171);
101 gpio_direction_input(172);
102 gpio_direction_input(173);
104 beagle_rev = gpio_get_value(171) | (gpio_get_value(172) << 1)
105 | (gpio_get_value(173) << 2);
107 switch (beagle_rev) {
109 printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n");
110 omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX;
113 printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n");
114 omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3;
117 printk(KERN_INFO "OMAP3 Beagle Rev: C4\n");
118 omap3_beagle_version = OMAP3BEAGLE_BOARD_C4;
121 printk(KERN_INFO "OMAP3 Beagle Rev: xM\n");
122 omap3_beagle_version = OMAP3BEAGLE_BOARD_XM;
125 printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev);
126 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
136 printk(KERN_ERR "Unable to get revision detection GPIO pins\n");
137 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
142 static struct mtd_partition omap3beagle_nand_partitions[] = {
143 /* All the partition sizes are listed in terms of NAND block size */
147 .size = 4 * NAND_BLOCK_SIZE,
148 .mask_flags = MTD_WRITEABLE, /* force read-only */
152 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
153 .size = 15 * NAND_BLOCK_SIZE,
154 .mask_flags = MTD_WRITEABLE, /* force read-only */
157 .name = "U-Boot Env",
158 .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
159 .size = 1 * NAND_BLOCK_SIZE,
163 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
164 .size = 32 * NAND_BLOCK_SIZE,
167 .name = "File System",
168 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
169 .size = MTDPART_SIZ_FULL,
173 static struct omap_nand_platform_data omap3beagle_nand_data = {
174 .options = NAND_BUSWIDTH_16,
175 .parts = omap3beagle_nand_partitions,
176 .nr_parts = ARRAY_SIZE(omap3beagle_nand_partitions),
177 .dma_channel = -1, /* disable DMA in OMAP NAND driver */
184 static int beagle_enable_dvi(struct omap_dss_device *dssdev)
186 if (gpio_is_valid(dssdev->reset_gpio))
187 gpio_set_value(dssdev->reset_gpio, 1);
192 static void beagle_disable_dvi(struct omap_dss_device *dssdev)
194 if (gpio_is_valid(dssdev->reset_gpio))
195 gpio_set_value(dssdev->reset_gpio, 0);
198 static struct panel_generic_dpi_data dvi_panel = {
200 .platform_enable = beagle_enable_dvi,
201 .platform_disable = beagle_disable_dvi,
204 static struct omap_dss_device beagle_dvi_device = {
205 .type = OMAP_DISPLAY_TYPE_DPI,
207 .driver_name = "generic_dpi_panel",
209 .phy.dpi.data_lines = 24,
210 .reset_gpio = -EINVAL,
213 static struct omap_dss_device beagle_tv_device = {
215 .driver_name = "venc",
216 .type = OMAP_DISPLAY_TYPE_VENC,
217 .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
220 static struct omap_dss_device *beagle_dss_devices[] = {
225 static struct omap_dss_board_info beagle_dss_data = {
226 .num_devices = ARRAY_SIZE(beagle_dss_devices),
227 .devices = beagle_dss_devices,
228 .default_device = &beagle_dvi_device,
231 static struct platform_device beagle_dss_device = {
235 .platform_data = &beagle_dss_data,
239 static struct regulator_consumer_supply beagle_vdac_supply =
240 REGULATOR_SUPPLY("vdda_dac", "omapdss");
242 static struct regulator_consumer_supply beagle_vdvi_supply =
243 REGULATOR_SUPPLY("vdds_dsi", "omapdss");
245 static void __init beagle_display_init(void)
249 r = gpio_request(beagle_dvi_device.reset_gpio, "DVI reset");
251 printk(KERN_ERR "Unable to get DVI reset GPIO\n");
255 gpio_direction_output(beagle_dvi_device.reset_gpio, 0);
258 #include "sdram-micron-mt46h32m32lf-6.h"
260 static struct omap2_hsmmc_info mmc[] = {
263 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
269 static struct regulator_consumer_supply beagle_vmmc1_supply = {
273 static struct regulator_consumer_supply beagle_vsim_supply = {
274 .supply = "vmmc_aux",
277 static struct gpio_led gpio_leds[];
279 static int beagle_twl_gpio_setup(struct device *dev,
280 unsigned gpio, unsigned ngpio)
284 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
285 mmc[0].gpio_wp = -EINVAL;
286 } else if ((omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C1_3) ||
287 (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C4)) {
288 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
291 omap_mux_init_gpio(29, OMAP_PIN_INPUT);
293 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
294 mmc[0].gpio_cd = gpio + 0;
295 omap2_hsmmc_init(mmc);
297 /* link regulators to MMC adapters */
298 beagle_vmmc1_supply.dev = mmc[0].dev;
299 beagle_vsim_supply.dev = mmc[0].dev;
301 /* REVISIT: need ehci-omap hooks for external VBUS
302 * power switch and overcurrent detect
304 if (omap3_beagle_get_rev() != OMAP3BEAGLE_BOARD_XM) {
305 r = gpio_request(gpio + 1, "EHCI_nOC");
307 r = gpio_direction_input(gpio + 1);
312 pr_err("%s: unable to configure EHCI_nOC\n", __func__);
316 * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
317 * high / others active low)
319 gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
320 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM)
321 gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);
323 gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
325 /* DVI reset GPIO is different between beagle revisions */
326 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM)
327 beagle_dvi_device.reset_gpio = 129;
329 beagle_dvi_device.reset_gpio = 170;
331 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
332 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
335 * gpio + 1 on Xm controls the TFP410's enable line (active low)
336 * gpio + 2 control varies depending on the board rev as follows:
337 * P7/P8 revisions(prototype): Camera EN
338 * A2+ revisions (production): LDO (supplies DVI, serial, led blocks)
340 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
341 r = gpio_request(gpio + 1, "nDVI_PWR_EN");
343 r = gpio_direction_output(gpio + 1, 0);
348 pr_err("%s: unable to configure nDVI_PWR_EN\n",
350 r = gpio_request(gpio + 2, "DVI_LDO_EN");
352 r = gpio_direction_output(gpio + 2, 1);
357 pr_err("%s: unable to configure DVI_LDO_EN\n",
364 static struct twl4030_gpio_platform_data beagle_gpio_data = {
365 .gpio_base = OMAP_MAX_GPIO_LINES,
366 .irq_base = TWL4030_GPIO_IRQ_BASE,
367 .irq_end = TWL4030_GPIO_IRQ_END,
370 .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
371 | BIT(15) | BIT(16) | BIT(17),
372 .setup = beagle_twl_gpio_setup,
375 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
376 static struct regulator_init_data beagle_vmmc1 = {
380 .valid_modes_mask = REGULATOR_MODE_NORMAL
381 | REGULATOR_MODE_STANDBY,
382 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
383 | REGULATOR_CHANGE_MODE
384 | REGULATOR_CHANGE_STATUS,
386 .num_consumer_supplies = 1,
387 .consumer_supplies = &beagle_vmmc1_supply,
390 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
391 static struct regulator_init_data beagle_vsim = {
395 .valid_modes_mask = REGULATOR_MODE_NORMAL
396 | REGULATOR_MODE_STANDBY,
397 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
398 | REGULATOR_CHANGE_MODE
399 | REGULATOR_CHANGE_STATUS,
401 .num_consumer_supplies = 1,
402 .consumer_supplies = &beagle_vsim_supply,
405 /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
406 static struct regulator_init_data beagle_vdac = {
410 .valid_modes_mask = REGULATOR_MODE_NORMAL
411 | REGULATOR_MODE_STANDBY,
412 .valid_ops_mask = REGULATOR_CHANGE_MODE
413 | REGULATOR_CHANGE_STATUS,
415 .num_consumer_supplies = 1,
416 .consumer_supplies = &beagle_vdac_supply,
419 /* VPLL2 for digital video outputs */
420 static struct regulator_init_data beagle_vpll2 = {
425 .valid_modes_mask = REGULATOR_MODE_NORMAL
426 | REGULATOR_MODE_STANDBY,
427 .valid_ops_mask = REGULATOR_CHANGE_MODE
428 | REGULATOR_CHANGE_STATUS,
430 .num_consumer_supplies = 1,
431 .consumer_supplies = &beagle_vdvi_supply,
434 static struct twl4030_usb_data beagle_usb_data = {
435 .usb_mode = T2_USB_MODE_ULPI,
438 static struct twl4030_codec_audio_data beagle_audio_data = {
439 .audio_mclk = 26000000,
442 static struct twl4030_codec_data beagle_codec_data = {
443 .audio_mclk = 26000000,
444 .audio = &beagle_audio_data,
447 static struct twl4030_platform_data beagle_twldata = {
448 .irq_base = TWL4030_IRQ_BASE,
449 .irq_end = TWL4030_IRQ_END,
451 /* platform_data for children goes here */
452 .usb = &beagle_usb_data,
453 .gpio = &beagle_gpio_data,
454 .codec = &beagle_codec_data,
455 .vmmc1 = &beagle_vmmc1,
456 .vsim = &beagle_vsim,
457 .vdac = &beagle_vdac,
458 .vpll2 = &beagle_vpll2,
461 static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
463 I2C_BOARD_INFO("twl4030", 0x48),
464 .flags = I2C_CLIENT_WAKE,
465 .irq = INT_34XX_SYS_NIRQ,
466 .platform_data = &beagle_twldata,
470 static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
472 I2C_BOARD_INFO("eeprom", 0x50),
476 static int __init omap3_beagle_i2c_init(void)
478 omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
479 ARRAY_SIZE(beagle_i2c_boardinfo));
480 /* Bus 3 is attached to the DVI port where devices like the pico DLP
481 * projector don't work reliably with 400kHz */
482 omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
486 static struct gpio_led gpio_leds[] = {
488 .name = "beagleboard::usr0",
489 .default_trigger = "heartbeat",
493 .name = "beagleboard::usr1",
494 .default_trigger = "mmc0",
498 .name = "beagleboard::pmu_stat",
499 .gpio = -EINVAL, /* gets replaced */
504 static struct gpio_led_platform_data gpio_led_info = {
506 .num_leds = ARRAY_SIZE(gpio_leds),
509 static struct platform_device leds_gpio = {
513 .platform_data = &gpio_led_info,
517 static struct gpio_keys_button gpio_buttons[] = {
526 static struct gpio_keys_platform_data gpio_key_info = {
527 .buttons = gpio_buttons,
528 .nbuttons = ARRAY_SIZE(gpio_buttons),
531 static struct platform_device keys_gpio = {
535 .platform_data = &gpio_key_info,
539 static void __init omap3_beagle_init_irq(void)
541 omap2_init_common_infrastructure();
542 omap2_init_common_devices(mt46h32m32lf6_sdrc_params,
543 mt46h32m32lf6_sdrc_params);
545 #ifdef CONFIG_OMAP_32K_TIMER
546 omap2_gp_clockevent_set_gptimer(12);
550 static struct platform_device *omap3_beagle_devices[] __initdata = {
556 static void __init omap3beagle_flash_init(void)
559 u8 nandcs = GPMC_CS_NUM + 1;
561 /* find out the chip-select on which NAND exists */
562 while (cs < GPMC_CS_NUM) {
564 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
566 if ((ret & 0xC00) == 0x800) {
567 printk(KERN_INFO "Found NAND on CS%d\n", cs);
568 if (nandcs > GPMC_CS_NUM)
574 if (nandcs > GPMC_CS_NUM) {
575 printk(KERN_INFO "NAND: Unable to find configuration "
580 if (nandcs < GPMC_CS_NUM) {
581 omap3beagle_nand_data.cs = nandcs;
583 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
584 if (gpmc_nand_init(&omap3beagle_nand_data) < 0)
585 printk(KERN_ERR "Unable to register NAND device\n");
589 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
591 .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
592 .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
593 .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
596 .reset_gpio_port[0] = -EINVAL,
597 .reset_gpio_port[1] = 147,
598 .reset_gpio_port[2] = -EINVAL
601 #ifdef CONFIG_OMAP_MUX
602 static struct omap_board_mux board_mux[] __initdata = {
603 { .reg_offset = OMAP_MUX_TERMINATOR },
607 static struct omap_musb_board_data musb_board_data = {
608 .interface_type = MUSB_INTERFACE_ULPI,
613 static void __init omap3_beagle_init(void)
615 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
616 omap3_beagle_init_rev();
617 omap3_beagle_i2c_init();
618 platform_add_devices(omap3_beagle_devices,
619 ARRAY_SIZE(omap3_beagle_devices));
622 omap_mux_init_gpio(170, OMAP_PIN_INPUT);
623 gpio_request(170, "DVI_nPD");
624 /* REVISIT leave DVI powered down until it's needed ... */
625 gpio_direction_output(170, true);
627 usb_musb_init(&musb_board_data);
628 usb_ehci_init(&ehci_pdata);
629 omap3beagle_flash_init();
631 /* Ensure SDRC pins are mux'd for self-refresh */
632 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
633 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
635 beagle_display_init();
638 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
639 /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
640 .boot_params = 0x80000100,
641 .map_io = omap3_map_io,
642 .reserve = omap_reserve,
643 .init_irq = omap3_beagle_init_irq,
644 .init_machine = omap3_beagle_init,
645 .timer = &omap_timer,