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 <video/omapdss.h>
45 #include <video/omap-panel-generic-dpi.h>
46 #include <plat/gpmc.h>
47 #include <plat/nand.h>
49 #include <plat/omap_device.h>
55 #include "common-board-devices.h"
57 #define NAND_BLOCK_SIZE SZ_128K
60 * OMAP3 Beagle revision
61 * Run time detection of Beagle revision is done by reading GPIO.
63 * AXBX = GPIO173, GPIO172, GPIO171: 1 1 1
64 * C1_3 = GPIO173, GPIO172, GPIO171: 1 1 0
65 * C4 = GPIO173, GPIO172, GPIO171: 1 0 1
66 * XM = GPIO173, GPIO172, GPIO171: 0 0 0
69 OMAP3BEAGLE_BOARD_UNKN = 0,
70 OMAP3BEAGLE_BOARD_AXBX,
71 OMAP3BEAGLE_BOARD_C1_3,
76 static u8 omap3_beagle_version;
78 static u8 omap3_beagle_get_rev(void)
80 return omap3_beagle_version;
83 static struct gpio omap3_beagle_rev_gpios[] __initdata = {
84 { 171, GPIOF_IN, "rev_id_0" },
85 { 172, GPIOF_IN, "rev_id_1" },
86 { 173, GPIOF_IN, "rev_id_2" },
89 static void __init omap3_beagle_init_rev(void)
94 omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP);
95 omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP);
96 omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP);
98 ret = gpio_request_array(omap3_beagle_rev_gpios,
99 ARRAY_SIZE(omap3_beagle_rev_gpios));
101 printk(KERN_ERR "Unable to get revision detection GPIO pins\n");
102 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
106 beagle_rev = gpio_get_value(171) | (gpio_get_value(172) << 1)
107 | (gpio_get_value(173) << 2);
109 switch (beagle_rev) {
111 printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n");
112 omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX;
115 printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n");
116 omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3;
119 printk(KERN_INFO "OMAP3 Beagle Rev: C4\n");
120 omap3_beagle_version = OMAP3BEAGLE_BOARD_C4;
123 printk(KERN_INFO "OMAP3 Beagle Rev: xM\n");
124 omap3_beagle_version = OMAP3BEAGLE_BOARD_XM;
127 printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev);
128 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
132 static struct mtd_partition omap3beagle_nand_partitions[] = {
133 /* All the partition sizes are listed in terms of NAND block size */
137 .size = 4 * NAND_BLOCK_SIZE,
138 .mask_flags = MTD_WRITEABLE, /* force read-only */
142 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
143 .size = 15 * NAND_BLOCK_SIZE,
144 .mask_flags = MTD_WRITEABLE, /* force read-only */
147 .name = "U-Boot Env",
148 .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
149 .size = 1 * NAND_BLOCK_SIZE,
153 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
154 .size = 32 * NAND_BLOCK_SIZE,
157 .name = "File System",
158 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
159 .size = MTDPART_SIZ_FULL,
165 static int beagle_enable_dvi(struct omap_dss_device *dssdev)
167 if (gpio_is_valid(dssdev->reset_gpio))
168 gpio_set_value(dssdev->reset_gpio, 1);
173 static void beagle_disable_dvi(struct omap_dss_device *dssdev)
175 if (gpio_is_valid(dssdev->reset_gpio))
176 gpio_set_value(dssdev->reset_gpio, 0);
179 static struct panel_generic_dpi_data dvi_panel = {
181 .platform_enable = beagle_enable_dvi,
182 .platform_disable = beagle_disable_dvi,
185 static struct omap_dss_device beagle_dvi_device = {
186 .type = OMAP_DISPLAY_TYPE_DPI,
188 .driver_name = "generic_dpi_panel",
190 .phy.dpi.data_lines = 24,
191 .reset_gpio = -EINVAL,
194 static struct omap_dss_device beagle_tv_device = {
196 .driver_name = "venc",
197 .type = OMAP_DISPLAY_TYPE_VENC,
198 .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
201 static struct omap_dss_device *beagle_dss_devices[] = {
206 static struct omap_dss_board_info beagle_dss_data = {
207 .num_devices = ARRAY_SIZE(beagle_dss_devices),
208 .devices = beagle_dss_devices,
209 .default_device = &beagle_dvi_device,
212 static struct regulator_consumer_supply beagle_vdac_supply =
213 REGULATOR_SUPPLY("vdda_dac", "omapdss_venc");
215 static struct regulator_consumer_supply beagle_vdvi_supplies[] = {
216 REGULATOR_SUPPLY("vdds_dsi", "omapdss"),
217 REGULATOR_SUPPLY("vdds_dsi", "omapdss_dsi1"),
220 static void __init beagle_display_init(void)
224 r = gpio_request_one(beagle_dvi_device.reset_gpio, GPIOF_OUT_INIT_LOW,
227 printk(KERN_ERR "Unable to get DVI reset GPIO\n");
230 #include "sdram-micron-mt46h32m32lf-6.h"
232 static struct omap2_hsmmc_info mmc[] = {
235 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
241 static struct regulator_consumer_supply beagle_vmmc1_supply = {
245 static struct regulator_consumer_supply beagle_vsim_supply = {
246 .supply = "vmmc_aux",
249 static struct gpio_led gpio_leds[];
251 static int beagle_twl_gpio_setup(struct device *dev,
252 unsigned gpio, unsigned ngpio)
254 int r, usb_pwr_level;
256 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
257 mmc[0].gpio_wp = -EINVAL;
258 } else if ((omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C1_3) ||
259 (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C4)) {
260 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
263 omap_mux_init_gpio(29, OMAP_PIN_INPUT);
265 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
266 mmc[0].gpio_cd = gpio + 0;
267 omap2_hsmmc_init(mmc);
269 /* link regulators to MMC adapters */
270 beagle_vmmc1_supply.dev = mmc[0].dev;
271 beagle_vsim_supply.dev = mmc[0].dev;
274 * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
275 * high / others active low)
276 * DVI reset GPIO is different between beagle revisions
278 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
279 usb_pwr_level = GPIOF_OUT_INIT_HIGH;
280 beagle_dvi_device.reset_gpio = 129;
282 * gpio + 1 on Xm controls the TFP410's enable line (active low)
283 * gpio + 2 control varies depending on the board rev as below:
284 * P7/P8 revisions(prototype): Camera EN
285 * A2+ revisions (production): LDO (DVI, serial, led blocks)
287 r = gpio_request_one(gpio + 1, GPIOF_OUT_INIT_LOW,
290 pr_err("%s: unable to configure nDVI_PWR_EN\n",
292 r = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH,
295 pr_err("%s: unable to configure DVI_LDO_EN\n",
298 usb_pwr_level = GPIOF_OUT_INIT_LOW;
299 beagle_dvi_device.reset_gpio = 170;
301 * REVISIT: need ehci-omap hooks for external VBUS
302 * power switch and overcurrent detect
304 if (gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC"))
305 pr_err("%s: unable to configure EHCI_nOC\n", __func__);
308 gpio_request_one(gpio + TWL4030_GPIO_MAX, usb_pwr_level, "nEN_USB_PWR");
310 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
311 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
316 static struct twl4030_gpio_platform_data beagle_gpio_data = {
317 .gpio_base = OMAP_MAX_GPIO_LINES,
318 .irq_base = TWL4030_GPIO_IRQ_BASE,
319 .irq_end = TWL4030_GPIO_IRQ_END,
322 .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
323 | BIT(15) | BIT(16) | BIT(17),
324 .setup = beagle_twl_gpio_setup,
327 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
328 static struct regulator_init_data beagle_vmmc1 = {
332 .valid_modes_mask = REGULATOR_MODE_NORMAL
333 | REGULATOR_MODE_STANDBY,
334 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
335 | REGULATOR_CHANGE_MODE
336 | REGULATOR_CHANGE_STATUS,
338 .num_consumer_supplies = 1,
339 .consumer_supplies = &beagle_vmmc1_supply,
342 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
343 static struct regulator_init_data beagle_vsim = {
347 .valid_modes_mask = REGULATOR_MODE_NORMAL
348 | REGULATOR_MODE_STANDBY,
349 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
350 | REGULATOR_CHANGE_MODE
351 | REGULATOR_CHANGE_STATUS,
353 .num_consumer_supplies = 1,
354 .consumer_supplies = &beagle_vsim_supply,
357 /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
358 static struct regulator_init_data beagle_vdac = {
362 .valid_modes_mask = REGULATOR_MODE_NORMAL
363 | REGULATOR_MODE_STANDBY,
364 .valid_ops_mask = REGULATOR_CHANGE_MODE
365 | REGULATOR_CHANGE_STATUS,
367 .num_consumer_supplies = 1,
368 .consumer_supplies = &beagle_vdac_supply,
371 /* VPLL2 for digital video outputs */
372 static struct regulator_init_data beagle_vpll2 = {
377 .valid_modes_mask = REGULATOR_MODE_NORMAL
378 | REGULATOR_MODE_STANDBY,
379 .valid_ops_mask = REGULATOR_CHANGE_MODE
380 | REGULATOR_CHANGE_STATUS,
382 .num_consumer_supplies = ARRAY_SIZE(beagle_vdvi_supplies),
383 .consumer_supplies = beagle_vdvi_supplies,
386 static struct twl4030_usb_data beagle_usb_data = {
387 .usb_mode = T2_USB_MODE_ULPI,
390 static struct twl4030_codec_audio_data beagle_audio_data;
392 static struct twl4030_codec_data beagle_codec_data = {
393 .audio_mclk = 26000000,
394 .audio = &beagle_audio_data,
397 static struct twl4030_platform_data beagle_twldata = {
398 .irq_base = TWL4030_IRQ_BASE,
399 .irq_end = TWL4030_IRQ_END,
401 /* platform_data for children goes here */
402 .usb = &beagle_usb_data,
403 .gpio = &beagle_gpio_data,
404 .codec = &beagle_codec_data,
405 .vmmc1 = &beagle_vmmc1,
406 .vsim = &beagle_vsim,
407 .vdac = &beagle_vdac,
408 .vpll2 = &beagle_vpll2,
411 static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
413 I2C_BOARD_INFO("eeprom", 0x50),
417 static int __init omap3_beagle_i2c_init(void)
419 omap3_pmic_init("twl4030", &beagle_twldata);
420 /* Bus 3 is attached to the DVI port where devices like the pico DLP
421 * projector don't work reliably with 400kHz */
422 omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
426 static struct gpio_led gpio_leds[] = {
428 .name = "beagleboard::usr0",
429 .default_trigger = "heartbeat",
433 .name = "beagleboard::usr1",
434 .default_trigger = "mmc0",
438 .name = "beagleboard::pmu_stat",
439 .gpio = -EINVAL, /* gets replaced */
444 static struct gpio_led_platform_data gpio_led_info = {
446 .num_leds = ARRAY_SIZE(gpio_leds),
449 static struct platform_device leds_gpio = {
453 .platform_data = &gpio_led_info,
457 static struct gpio_keys_button gpio_buttons[] = {
466 static struct gpio_keys_platform_data gpio_key_info = {
467 .buttons = gpio_buttons,
468 .nbuttons = ARRAY_SIZE(gpio_buttons),
471 static struct platform_device keys_gpio = {
475 .platform_data = &gpio_key_info,
479 static void __init omap3_beagle_init_early(void)
481 omap2_init_common_infrastructure();
482 omap2_init_common_devices(mt46h32m32lf6_sdrc_params,
483 mt46h32m32lf6_sdrc_params);
486 static void __init omap3_beagle_init_irq(void)
489 #ifdef CONFIG_OMAP_32K_TIMER
490 omap2_gp_clockevent_set_gptimer(12);
494 static struct platform_device *omap3_beagle_devices[] __initdata = {
499 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
501 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
502 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
503 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
506 .reset_gpio_port[0] = -EINVAL,
507 .reset_gpio_port[1] = 147,
508 .reset_gpio_port[2] = -EINVAL
511 #ifdef CONFIG_OMAP_MUX
512 static struct omap_board_mux board_mux[] __initdata = {
513 { .reg_offset = OMAP_MUX_TERMINATOR },
517 static void __init beagle_opp_init(void)
521 /* Initialize the omap3 opp table */
522 if (omap3_opp_init()) {
523 pr_err("%s: opp default init failed\n", __func__);
527 /* Custom OPP enabled for XM */
528 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
529 struct omap_hwmod *mh = omap_hwmod_lookup("mpu");
530 struct omap_hwmod *dh = omap_hwmod_lookup("iva");
534 pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
538 /* Enable MPU 1GHz and lower opps */
539 dev = &mh->od->pdev.dev;
540 r = opp_enable(dev, 800000000);
541 /* TODO: MPU 1GHz needs SR and ABB */
543 /* Enable IVA 800MHz and lower opps */
544 dev = &dh->od->pdev.dev;
545 r |= opp_enable(dev, 660000000);
546 /* TODO: DSP 800MHz needs SR and ABB */
548 pr_err("%s: failed to enable higher opp %d\n",
551 * Cleanup - disable the higher freqs - we dont care
554 dev = &mh->od->pdev.dev;
555 opp_disable(dev, 800000000);
556 dev = &dh->od->pdev.dev;
557 opp_disable(dev, 660000000);
563 static void __init omap3_beagle_init(void)
565 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
566 omap3_beagle_init_rev();
567 omap3_beagle_i2c_init();
568 platform_add_devices(omap3_beagle_devices,
569 ARRAY_SIZE(omap3_beagle_devices));
570 omap_display_init(&beagle_dss_data);
573 omap_mux_init_gpio(170, OMAP_PIN_INPUT);
574 /* REVISIT leave DVI powered down until it's needed ... */
575 gpio_request_one(170, GPIOF_OUT_INIT_HIGH, "DVI_nPD");
578 usbhs_init(&usbhs_bdata);
579 omap_nand_flash_init(NAND_BUSWIDTH_16, omap3beagle_nand_partitions,
580 ARRAY_SIZE(omap3beagle_nand_partitions));
582 /* Ensure SDRC pins are mux'd for self-refresh */
583 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
584 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
586 beagle_display_init();
590 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
591 /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
592 .boot_params = 0x80000100,
593 .reserve = omap_reserve,
594 .map_io = omap3_map_io,
595 .init_early = omap3_beagle_init_early,
596 .init_irq = omap3_beagle_init_irq,
597 .init_machine = omap3_beagle_init,
598 .timer = &omap_timer,