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>
43 #include <video/omapdss.h>
44 #include <video/omap-panel-tfp410.h>
45 #include <plat/gpmc.h>
46 #include <plat/nand.h>
48 #include <plat/omap_device.h>
53 #include "common-board-devices.h"
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 * XMA/XMB = GPIO173, GPIO172, GPIO171: 0 0 0
63 * XMC = GPIO173, GPIO172, GPIO171: 0 1 0
66 OMAP3BEAGLE_BOARD_UNKN = 0,
67 OMAP3BEAGLE_BOARD_AXBX,
68 OMAP3BEAGLE_BOARD_C1_3,
71 OMAP3BEAGLE_BOARD_XMC,
74 static u8 omap3_beagle_version;
77 * Board-specific configuration
78 * Defaults to BeagleBoard-xMC
87 .mmc1_gpio_wp = -EINVAL,
88 .usb_pwr_level = GPIOF_OUT_INIT_LOW,
89 .dvi_pd_gpio = -EINVAL,
91 .mmc_caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
94 static struct gpio omap3_beagle_rev_gpios[] __initdata = {
95 { 171, GPIOF_IN, "rev_id_0" },
96 { 172, GPIOF_IN, "rev_id_1" },
97 { 173, GPIOF_IN, "rev_id_2" },
100 static void __init omap3_beagle_init_rev(void)
105 omap_mux_init_gpio(171, OMAP_PIN_INPUT_PULLUP);
106 omap_mux_init_gpio(172, OMAP_PIN_INPUT_PULLUP);
107 omap_mux_init_gpio(173, OMAP_PIN_INPUT_PULLUP);
109 ret = gpio_request_array(omap3_beagle_rev_gpios,
110 ARRAY_SIZE(omap3_beagle_rev_gpios));
112 printk(KERN_ERR "Unable to get revision detection GPIO pins\n");
113 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
117 beagle_rev = gpio_get_value(171) | (gpio_get_value(172) << 1)
118 | (gpio_get_value(173) << 2);
120 gpio_free_array(omap3_beagle_rev_gpios,
121 ARRAY_SIZE(omap3_beagle_rev_gpios));
123 switch (beagle_rev) {
125 printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n");
126 omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX;
127 beagle_config.mmc1_gpio_wp = 29;
128 beagle_config.dvi_pd_gpio = 170;
129 beagle_config.usr_button_gpio = 7;
132 printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n");
133 omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3;
134 beagle_config.mmc1_gpio_wp = 23;
135 beagle_config.dvi_pd_gpio = 170;
136 beagle_config.usr_button_gpio = 7;
139 printk(KERN_INFO "OMAP3 Beagle Rev: C4\n");
140 omap3_beagle_version = OMAP3BEAGLE_BOARD_C4;
141 beagle_config.mmc1_gpio_wp = 23;
142 beagle_config.dvi_pd_gpio = 170;
143 beagle_config.usr_button_gpio = 7;
146 printk(KERN_INFO "OMAP3 Beagle Rev: xM Ax/Bx\n");
147 omap3_beagle_version = OMAP3BEAGLE_BOARD_XM;
148 beagle_config.usb_pwr_level = GPIOF_OUT_INIT_HIGH;
149 beagle_config.mmc_caps &= ~MMC_CAP_8_BIT_DATA;
152 printk(KERN_INFO "OMAP3 Beagle Rev: xM C\n");
153 omap3_beagle_version = OMAP3BEAGLE_BOARD_XMC;
154 beagle_config.mmc_caps &= ~MMC_CAP_8_BIT_DATA;
157 printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev);
158 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
162 static struct mtd_partition omap3beagle_nand_partitions[] = {
163 /* All the partition sizes are listed in terms of NAND block size */
167 .size = 4 * NAND_BLOCK_SIZE,
168 .mask_flags = MTD_WRITEABLE, /* force read-only */
172 .offset = MTDPART_OFS_APPEND, /* Offset = 0x80000 */
173 .size = 15 * NAND_BLOCK_SIZE,
174 .mask_flags = MTD_WRITEABLE, /* force read-only */
177 .name = "U-Boot Env",
178 .offset = MTDPART_OFS_APPEND, /* Offset = 0x260000 */
179 .size = 1 * NAND_BLOCK_SIZE,
183 .offset = MTDPART_OFS_APPEND, /* Offset = 0x280000 */
184 .size = 32 * NAND_BLOCK_SIZE,
187 .name = "File System",
188 .offset = MTDPART_OFS_APPEND, /* Offset = 0x680000 */
189 .size = MTDPART_SIZ_FULL,
195 static struct tfp410_platform_data dvi_panel = {
197 .power_down_gpio = -1,
200 static struct omap_dss_device beagle_dvi_device = {
201 .type = OMAP_DISPLAY_TYPE_DPI,
203 .driver_name = "tfp410",
205 .phy.dpi.data_lines = 24,
208 static struct omap_dss_device beagle_tv_device = {
210 .driver_name = "venc",
211 .type = OMAP_DISPLAY_TYPE_VENC,
212 .phy.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
215 static struct omap_dss_device *beagle_dss_devices[] = {
220 static struct omap_dss_board_info beagle_dss_data = {
221 .num_devices = ARRAY_SIZE(beagle_dss_devices),
222 .devices = beagle_dss_devices,
223 .default_device = &beagle_dvi_device,
226 #include "sdram-micron-mt46h32m32lf-6.h"
228 static struct omap2_hsmmc_info mmc[] = {
231 .caps = MMC_CAP_4_BIT_DATA,
238 static struct regulator_consumer_supply beagle_vmmc1_supply[] = {
239 REGULATOR_SUPPLY("vmmc", "omap_hsmmc.0"),
242 static struct regulator_consumer_supply beagle_vsim_supply[] = {
243 REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
246 static struct gpio_led gpio_leds[];
248 static int beagle_twl_gpio_setup(struct device *dev,
249 unsigned gpio, unsigned ngpio)
253 mmc[0].gpio_wp = beagle_config.mmc1_gpio_wp;
254 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
255 mmc[0].gpio_cd = gpio + 0;
256 omap_hsmmc_late_init(mmc);
259 * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
260 * high / others active low)
261 * DVI reset GPIO is different between beagle revisions
263 /* Valid for all -xM revisions */
264 if (cpu_is_omap3630()) {
266 * gpio + 1 on Xm controls the TFP410's enable line (active low)
267 * gpio + 2 control varies depending on the board rev as below:
268 * P7/P8 revisions(prototype): Camera EN
269 * A2+ revisions (production): LDO (DVI, serial, led blocks)
271 r = gpio_request_one(gpio + 1, GPIOF_OUT_INIT_LOW,
274 pr_err("%s: unable to configure nDVI_PWR_EN\n",
277 beagle_config.dvi_pd_gpio = gpio + 2;
281 * REVISIT: need ehci-omap hooks for external VBUS
282 * power switch and overcurrent detect
284 if (gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC"))
285 pr_err("%s: unable to configure EHCI_nOC\n", __func__);
287 dvi_panel.power_down_gpio = beagle_config.dvi_pd_gpio;
289 gpio_request_one(gpio + TWL4030_GPIO_MAX, beagle_config.usb_pwr_level,
292 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
293 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
298 static struct twl4030_gpio_platform_data beagle_gpio_data = {
299 .gpio_base = OMAP_MAX_GPIO_LINES,
300 .irq_base = TWL4030_GPIO_IRQ_BASE,
301 .irq_end = TWL4030_GPIO_IRQ_END,
304 .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
305 | BIT(15) | BIT(16) | BIT(17),
306 .setup = beagle_twl_gpio_setup,
309 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
310 static struct regulator_init_data beagle_vmmc1 = {
314 .valid_modes_mask = REGULATOR_MODE_NORMAL
315 | REGULATOR_MODE_STANDBY,
316 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
317 | REGULATOR_CHANGE_MODE
318 | REGULATOR_CHANGE_STATUS,
320 .num_consumer_supplies = ARRAY_SIZE(beagle_vmmc1_supply),
321 .consumer_supplies = beagle_vmmc1_supply,
324 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
325 static struct regulator_init_data beagle_vsim = {
329 .valid_modes_mask = REGULATOR_MODE_NORMAL
330 | REGULATOR_MODE_STANDBY,
331 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
332 | REGULATOR_CHANGE_MODE
333 | REGULATOR_CHANGE_STATUS,
335 .num_consumer_supplies = ARRAY_SIZE(beagle_vsim_supply),
336 .consumer_supplies = beagle_vsim_supply,
339 static struct twl4030_platform_data beagle_twldata = {
340 /* platform_data for children goes here */
341 .gpio = &beagle_gpio_data,
342 .vmmc1 = &beagle_vmmc1,
343 .vsim = &beagle_vsim,
346 static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
348 I2C_BOARD_INFO("eeprom", 0x50),
352 static int __init omap3_beagle_i2c_init(void)
354 omap3_pmic_get_config(&beagle_twldata,
355 TWL_COMMON_PDATA_USB | TWL_COMMON_PDATA_MADC |
356 TWL_COMMON_PDATA_AUDIO,
357 TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
359 beagle_twldata.vpll2->constraints.name = "VDVI";
361 omap3_pmic_init("twl4030", &beagle_twldata);
362 /* Bus 3 is attached to the DVI port where devices like the pico DLP
363 * projector don't work reliably with 400kHz */
364 omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
368 static struct gpio_led gpio_leds[] = {
370 .name = "beagleboard::usr0",
371 .default_trigger = "heartbeat",
375 .name = "beagleboard::usr1",
376 .default_trigger = "mmc0",
380 .name = "beagleboard::pmu_stat",
381 .gpio = -EINVAL, /* gets replaced */
386 static struct gpio_led_platform_data gpio_led_info = {
388 .num_leds = ARRAY_SIZE(gpio_leds),
391 static struct platform_device leds_gpio = {
395 .platform_data = &gpio_led_info,
399 static struct gpio_keys_button gpio_buttons[] = {
402 /* Dynamically assigned depending on board */
409 static struct gpio_keys_platform_data gpio_key_info = {
410 .buttons = gpio_buttons,
411 .nbuttons = ARRAY_SIZE(gpio_buttons),
414 static struct platform_device keys_gpio = {
418 .platform_data = &gpio_key_info,
422 static struct platform_device madc_hwmon = {
423 .name = "twl4030_madc_hwmon",
427 static struct platform_device *omap3_beagle_devices[] __initdata = {
433 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
435 .port_mode[0] = OMAP_USBHS_PORT_MODE_UNUSED,
436 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
437 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
440 .reset_gpio_port[0] = -EINVAL,
441 .reset_gpio_port[1] = 147,
442 .reset_gpio_port[2] = -EINVAL
445 #ifdef CONFIG_OMAP_MUX
446 static struct omap_board_mux board_mux[] __initdata = {
447 { .reg_offset = OMAP_MUX_TERMINATOR },
451 static void __init beagle_opp_init(void)
455 /* Initialize the omap3 opp table */
456 if (omap3_opp_init()) {
457 pr_err("%s: opp default init failed\n", __func__);
461 /* Custom OPP enabled for all xM versions */
462 if (cpu_is_omap3630()) {
463 struct device *mpu_dev, *iva_dev;
465 mpu_dev = omap_device_get_by_hwmod_name("mpu");
466 iva_dev = omap_device_get_by_hwmod_name("iva");
468 if (!mpu_dev || !iva_dev) {
469 pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
470 __func__, mpu_dev, iva_dev);
473 /* Enable MPU 1GHz and lower opps */
474 r = opp_enable(mpu_dev, 800000000);
475 /* TODO: MPU 1GHz needs SR and ABB */
477 /* Enable IVA 800MHz and lower opps */
478 r |= opp_enable(iva_dev, 660000000);
479 /* TODO: DSP 800MHz needs SR and ABB */
481 pr_err("%s: failed to enable higher opp %d\n",
484 * Cleanup - disable the higher freqs - we dont care
487 opp_disable(mpu_dev, 800000000);
488 opp_disable(iva_dev, 660000000);
494 static void __init omap3_beagle_init(void)
496 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
497 omap3_beagle_init_rev();
499 if (gpio_is_valid(beagle_config.mmc1_gpio_wp))
500 omap_mux_init_gpio(beagle_config.mmc1_gpio_wp, OMAP_PIN_INPUT);
501 mmc[0].caps = beagle_config.mmc_caps;
502 omap_hsmmc_init(mmc);
504 omap3_beagle_i2c_init();
506 gpio_buttons[0].gpio = beagle_config.usr_button_gpio;
508 platform_add_devices(omap3_beagle_devices,
509 ARRAY_SIZE(omap3_beagle_devices));
510 if (gpio_is_valid(beagle_config.dvi_pd_gpio))
511 omap_mux_init_gpio(beagle_config.dvi_pd_gpio, OMAP_PIN_OUTPUT);
512 omap_display_init(&beagle_dss_data);
514 omap_sdrc_init(mt46h32m32lf6_sdrc_params,
515 mt46h32m32lf6_sdrc_params);
518 usbhs_init(&usbhs_bdata);
519 omap_nand_flash_init(NAND_BUSWIDTH_16, omap3beagle_nand_partitions,
520 ARRAY_SIZE(omap3beagle_nand_partitions));
522 /* Ensure msecure is mux'd to be able to set the RTC. */
523 omap_mux_init_signal("sys_drm_msecure", OMAP_PIN_OFF_OUTPUT_HIGH);
525 /* Ensure SDRC pins are mux'd for self-refresh */
526 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
527 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
532 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
533 /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
534 .atag_offset = 0x100,
535 .reserve = omap_reserve,
536 .map_io = omap3_map_io,
537 .init_early = omap3_init_early,
538 .init_irq = omap3_init_irq,
539 .handle_irq = omap3_intc_handle_irq,
540 .init_machine = omap3_beagle_init,
541 .init_late = omap3_init_late,
542 .timer = &omap3_secure_timer,
543 .restart = omap_prcm_restart,