[S390] wire up sys_name_to_handle_at
[linux-2.6/btrfs-unstable.git] / arch / arm / mach-omap2 / board-omap3beagle.c
blob7640c054f43b6be37c8f92a9dd72d070c6cffbe4
1 /*
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>
21 #include <linux/io.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>
48 #include <plat/usb.h>
49 #include <plat/omap_device.h>
51 #include "mux.h"
52 #include "hsmmc.h"
53 #include "timer-gp.h"
54 #include "pm.h"
56 #define NAND_BLOCK_SIZE SZ_128K
59 * OMAP3 Beagle revision
60 * Run time detection of Beagle revision is done by reading GPIO.
61 * GPIO ID -
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
67 enum {
68 OMAP3BEAGLE_BOARD_UNKN = 0,
69 OMAP3BEAGLE_BOARD_AXBX,
70 OMAP3BEAGLE_BOARD_C1_3,
71 OMAP3BEAGLE_BOARD_C4,
72 OMAP3BEAGLE_BOARD_XM,
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)
84 int ret;
85 u16 beagle_rev = 0;
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");
92 if (ret < 0)
93 goto fail0;
95 ret = gpio_request(172, "rev_id_1");
96 if (ret < 0)
97 goto fail1;
99 ret = gpio_request(173, "rev_id_2");
100 if (ret < 0)
101 goto fail2;
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) {
111 case 7:
112 printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n");
113 omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX;
114 break;
115 case 6:
116 printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n");
117 omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3;
118 break;
119 case 5:
120 printk(KERN_INFO "OMAP3 Beagle Rev: C4\n");
121 omap3_beagle_version = OMAP3BEAGLE_BOARD_C4;
122 break;
123 case 0:
124 printk(KERN_INFO "OMAP3 Beagle Rev: xM\n");
125 omap3_beagle_version = OMAP3BEAGLE_BOARD_XM;
126 break;
127 default:
128 printk(KERN_INFO "OMAP3 Beagle Rev: unknown %hd\n", beagle_rev);
129 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
132 return;
134 fail2:
135 gpio_free(172);
136 fail1:
137 gpio_free(171);
138 fail0:
139 printk(KERN_ERR "Unable to get revision detection GPIO pins\n");
140 omap3_beagle_version = OMAP3BEAGLE_BOARD_UNKN;
142 return;
145 static struct mtd_partition omap3beagle_nand_partitions[] = {
146 /* All the partition sizes are listed in terms of NAND block size */
148 .name = "X-Loader",
149 .offset = 0,
150 .size = 4 * NAND_BLOCK_SIZE,
151 .mask_flags = MTD_WRITEABLE, /* force read-only */
154 .name = "U-Boot",
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,
165 .name = "Kernel",
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 */
181 .nand_setup = NULL,
182 .dev_ready = NULL,
185 /* DSS */
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);
192 return 0;
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 = {
202 .name = "generic",
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,
209 .name = "dvi",
210 .driver_name = "generic_dpi_panel",
211 .data = &dvi_panel,
212 .phy.dpi.data_lines = 24,
213 .reset_gpio = -EINVAL,
216 static struct omap_dss_device beagle_tv_device = {
217 .name = "tv",
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[] = {
224 &beagle_dvi_device,
225 &beagle_tv_device,
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");
237 static struct regulator_consumer_supply beagle_vdvi_supply =
238 REGULATOR_SUPPLY("vdds_dsi", "omapdss");
240 static void __init beagle_display_init(void)
242 int r;
244 r = gpio_request(beagle_dvi_device.reset_gpio, "DVI reset");
245 if (r < 0) {
246 printk(KERN_ERR "Unable to get DVI reset GPIO\n");
247 return;
250 gpio_direction_output(beagle_dvi_device.reset_gpio, 0);
253 #include "sdram-micron-mt46h32m32lf-6.h"
255 static struct omap2_hsmmc_info mmc[] = {
257 .mmc = 1,
258 .caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
259 .gpio_wp = 29,
261 {} /* Terminator */
264 static struct regulator_consumer_supply beagle_vmmc1_supply = {
265 .supply = "vmmc",
268 static struct regulator_consumer_supply beagle_vsim_supply = {
269 .supply = "vmmc_aux",
272 static struct gpio_led gpio_leds[];
274 static int beagle_twl_gpio_setup(struct device *dev,
275 unsigned gpio, unsigned ngpio)
277 int r;
279 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
280 mmc[0].gpio_wp = -EINVAL;
281 } else if ((omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C1_3) ||
282 (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_C4)) {
283 omap_mux_init_gpio(23, OMAP_PIN_INPUT);
284 mmc[0].gpio_wp = 23;
285 } else {
286 omap_mux_init_gpio(29, OMAP_PIN_INPUT);
288 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
289 mmc[0].gpio_cd = gpio + 0;
290 omap2_hsmmc_init(mmc);
292 /* link regulators to MMC adapters */
293 beagle_vmmc1_supply.dev = mmc[0].dev;
294 beagle_vsim_supply.dev = mmc[0].dev;
296 /* REVISIT: need ehci-omap hooks for external VBUS
297 * power switch and overcurrent detect
299 if (omap3_beagle_get_rev() != OMAP3BEAGLE_BOARD_XM) {
300 r = gpio_request(gpio + 1, "EHCI_nOC");
301 if (!r) {
302 r = gpio_direction_input(gpio + 1);
303 if (r)
304 gpio_free(gpio + 1);
306 if (r)
307 pr_err("%s: unable to configure EHCI_nOC\n", __func__);
311 * TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, XM active
312 * high / others active low)
314 gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
315 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM)
316 gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);
317 else
318 gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0);
320 /* DVI reset GPIO is different between beagle revisions */
321 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM)
322 beagle_dvi_device.reset_gpio = 129;
323 else
324 beagle_dvi_device.reset_gpio = 170;
326 /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
327 gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
330 * gpio + 1 on Xm controls the TFP410's enable line (active low)
331 * gpio + 2 control varies depending on the board rev as follows:
332 * P7/P8 revisions(prototype): Camera EN
333 * A2+ revisions (production): LDO (supplies DVI, serial, led blocks)
335 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
336 r = gpio_request(gpio + 1, "nDVI_PWR_EN");
337 if (!r) {
338 r = gpio_direction_output(gpio + 1, 0);
339 if (r)
340 gpio_free(gpio + 1);
342 if (r)
343 pr_err("%s: unable to configure nDVI_PWR_EN\n",
344 __func__);
345 r = gpio_request(gpio + 2, "DVI_LDO_EN");
346 if (!r) {
347 r = gpio_direction_output(gpio + 2, 1);
348 if (r)
349 gpio_free(gpio + 2);
351 if (r)
352 pr_err("%s: unable to configure DVI_LDO_EN\n",
353 __func__);
356 return 0;
359 static struct twl4030_gpio_platform_data beagle_gpio_data = {
360 .gpio_base = OMAP_MAX_GPIO_LINES,
361 .irq_base = TWL4030_GPIO_IRQ_BASE,
362 .irq_end = TWL4030_GPIO_IRQ_END,
363 .use_leds = true,
364 .pullups = BIT(1),
365 .pulldowns = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
366 | BIT(15) | BIT(16) | BIT(17),
367 .setup = beagle_twl_gpio_setup,
370 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
371 static struct regulator_init_data beagle_vmmc1 = {
372 .constraints = {
373 .min_uV = 1850000,
374 .max_uV = 3150000,
375 .valid_modes_mask = REGULATOR_MODE_NORMAL
376 | REGULATOR_MODE_STANDBY,
377 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
378 | REGULATOR_CHANGE_MODE
379 | REGULATOR_CHANGE_STATUS,
381 .num_consumer_supplies = 1,
382 .consumer_supplies = &beagle_vmmc1_supply,
385 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
386 static struct regulator_init_data beagle_vsim = {
387 .constraints = {
388 .min_uV = 1800000,
389 .max_uV = 3000000,
390 .valid_modes_mask = REGULATOR_MODE_NORMAL
391 | REGULATOR_MODE_STANDBY,
392 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
393 | REGULATOR_CHANGE_MODE
394 | REGULATOR_CHANGE_STATUS,
396 .num_consumer_supplies = 1,
397 .consumer_supplies = &beagle_vsim_supply,
400 /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
401 static struct regulator_init_data beagle_vdac = {
402 .constraints = {
403 .min_uV = 1800000,
404 .max_uV = 1800000,
405 .valid_modes_mask = REGULATOR_MODE_NORMAL
406 | REGULATOR_MODE_STANDBY,
407 .valid_ops_mask = REGULATOR_CHANGE_MODE
408 | REGULATOR_CHANGE_STATUS,
410 .num_consumer_supplies = 1,
411 .consumer_supplies = &beagle_vdac_supply,
414 /* VPLL2 for digital video outputs */
415 static struct regulator_init_data beagle_vpll2 = {
416 .constraints = {
417 .name = "VDVI",
418 .min_uV = 1800000,
419 .max_uV = 1800000,
420 .valid_modes_mask = REGULATOR_MODE_NORMAL
421 | REGULATOR_MODE_STANDBY,
422 .valid_ops_mask = REGULATOR_CHANGE_MODE
423 | REGULATOR_CHANGE_STATUS,
425 .num_consumer_supplies = 1,
426 .consumer_supplies = &beagle_vdvi_supply,
429 static struct twl4030_usb_data beagle_usb_data = {
430 .usb_mode = T2_USB_MODE_ULPI,
433 static struct twl4030_codec_audio_data beagle_audio_data;
435 static struct twl4030_codec_data beagle_codec_data = {
436 .audio_mclk = 26000000,
437 .audio = &beagle_audio_data,
440 static struct twl4030_platform_data beagle_twldata = {
441 .irq_base = TWL4030_IRQ_BASE,
442 .irq_end = TWL4030_IRQ_END,
444 /* platform_data for children goes here */
445 .usb = &beagle_usb_data,
446 .gpio = &beagle_gpio_data,
447 .codec = &beagle_codec_data,
448 .vmmc1 = &beagle_vmmc1,
449 .vsim = &beagle_vsim,
450 .vdac = &beagle_vdac,
451 .vpll2 = &beagle_vpll2,
454 static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
456 I2C_BOARD_INFO("twl4030", 0x48),
457 .flags = I2C_CLIENT_WAKE,
458 .irq = INT_34XX_SYS_NIRQ,
459 .platform_data = &beagle_twldata,
463 static struct i2c_board_info __initdata beagle_i2c_eeprom[] = {
465 I2C_BOARD_INFO("eeprom", 0x50),
469 static int __init omap3_beagle_i2c_init(void)
471 omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
472 ARRAY_SIZE(beagle_i2c_boardinfo));
473 /* Bus 3 is attached to the DVI port where devices like the pico DLP
474 * projector don't work reliably with 400kHz */
475 omap_register_i2c_bus(3, 100, beagle_i2c_eeprom, ARRAY_SIZE(beagle_i2c_eeprom));
476 return 0;
479 static struct gpio_led gpio_leds[] = {
481 .name = "beagleboard::usr0",
482 .default_trigger = "heartbeat",
483 .gpio = 150,
486 .name = "beagleboard::usr1",
487 .default_trigger = "mmc0",
488 .gpio = 149,
491 .name = "beagleboard::pmu_stat",
492 .gpio = -EINVAL, /* gets replaced */
493 .active_low = true,
497 static struct gpio_led_platform_data gpio_led_info = {
498 .leds = gpio_leds,
499 .num_leds = ARRAY_SIZE(gpio_leds),
502 static struct platform_device leds_gpio = {
503 .name = "leds-gpio",
504 .id = -1,
505 .dev = {
506 .platform_data = &gpio_led_info,
510 static struct gpio_keys_button gpio_buttons[] = {
512 .code = BTN_EXTRA,
513 .gpio = 7,
514 .desc = "user",
515 .wakeup = 1,
519 static struct gpio_keys_platform_data gpio_key_info = {
520 .buttons = gpio_buttons,
521 .nbuttons = ARRAY_SIZE(gpio_buttons),
524 static struct platform_device keys_gpio = {
525 .name = "gpio-keys",
526 .id = -1,
527 .dev = {
528 .platform_data = &gpio_key_info,
532 static void __init omap3_beagle_init_early(void)
534 omap2_init_common_infrastructure();
535 omap2_init_common_devices(mt46h32m32lf6_sdrc_params,
536 mt46h32m32lf6_sdrc_params);
539 static void __init omap3_beagle_init_irq(void)
541 omap_init_irq();
542 #ifdef CONFIG_OMAP_32K_TIMER
543 omap2_gp_clockevent_set_gptimer(12);
544 #endif
547 static struct platform_device *omap3_beagle_devices[] __initdata = {
548 &leds_gpio,
549 &keys_gpio,
552 static void __init omap3beagle_flash_init(void)
554 u8 cs = 0;
555 u8 nandcs = GPMC_CS_NUM + 1;
557 /* find out the chip-select on which NAND exists */
558 while (cs < GPMC_CS_NUM) {
559 u32 ret = 0;
560 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
562 if ((ret & 0xC00) == 0x800) {
563 printk(KERN_INFO "Found NAND on CS%d\n", cs);
564 if (nandcs > GPMC_CS_NUM)
565 nandcs = cs;
567 cs++;
570 if (nandcs > GPMC_CS_NUM) {
571 printk(KERN_INFO "NAND: Unable to find configuration "
572 "in GPMC\n ");
573 return;
576 if (nandcs < GPMC_CS_NUM) {
577 omap3beagle_nand_data.cs = nandcs;
579 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
580 if (gpmc_nand_init(&omap3beagle_nand_data) < 0)
581 printk(KERN_ERR "Unable to register NAND device\n");
585 static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
587 .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY,
588 .port_mode[1] = OMAP_EHCI_PORT_MODE_PHY,
589 .port_mode[2] = OMAP_USBHS_PORT_MODE_UNUSED,
591 .phy_reset = true,
592 .reset_gpio_port[0] = -EINVAL,
593 .reset_gpio_port[1] = 147,
594 .reset_gpio_port[2] = -EINVAL
597 #ifdef CONFIG_OMAP_MUX
598 static struct omap_board_mux board_mux[] __initdata = {
599 { .reg_offset = OMAP_MUX_TERMINATOR },
601 #endif
603 static struct omap_musb_board_data musb_board_data = {
604 .interface_type = MUSB_INTERFACE_ULPI,
605 .mode = MUSB_OTG,
606 .power = 100,
609 static void __init beagle_opp_init(void)
611 int r = 0;
613 /* Initialize the omap3 opp table */
614 if (omap3_opp_init()) {
615 pr_err("%s: opp default init failed\n", __func__);
616 return;
619 /* Custom OPP enabled for XM */
620 if (omap3_beagle_get_rev() == OMAP3BEAGLE_BOARD_XM) {
621 struct omap_hwmod *mh = omap_hwmod_lookup("mpu");
622 struct omap_hwmod *dh = omap_hwmod_lookup("iva");
623 struct device *dev;
625 if (!mh || !dh) {
626 pr_err("%s: Aiee.. no mpu/dsp devices? %p %p\n",
627 __func__, mh, dh);
628 return;
630 /* Enable MPU 1GHz and lower opps */
631 dev = &mh->od->pdev.dev;
632 r = opp_enable(dev, 800000000);
633 /* TODO: MPU 1GHz needs SR and ABB */
635 /* Enable IVA 800MHz and lower opps */
636 dev = &dh->od->pdev.dev;
637 r |= opp_enable(dev, 660000000);
638 /* TODO: DSP 800MHz needs SR and ABB */
639 if (r) {
640 pr_err("%s: failed to enable higher opp %d\n",
641 __func__, r);
643 * Cleanup - disable the higher freqs - we dont care
644 * about the results
646 dev = &mh->od->pdev.dev;
647 opp_disable(dev, 800000000);
648 dev = &dh->od->pdev.dev;
649 opp_disable(dev, 660000000);
652 return;
655 static void __init omap3_beagle_init(void)
657 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
658 omap3_beagle_init_rev();
659 omap3_beagle_i2c_init();
660 platform_add_devices(omap3_beagle_devices,
661 ARRAY_SIZE(omap3_beagle_devices));
662 omap_display_init(&beagle_dss_data);
663 omap_serial_init();
665 omap_mux_init_gpio(170, OMAP_PIN_INPUT);
666 gpio_request(170, "DVI_nPD");
667 /* REVISIT leave DVI powered down until it's needed ... */
668 gpio_direction_output(170, true);
670 usb_musb_init(&musb_board_data);
671 usbhs_init(&usbhs_bdata);
672 omap3beagle_flash_init();
674 /* Ensure SDRC pins are mux'd for self-refresh */
675 omap_mux_init_signal("sdrc_cke0", OMAP_PIN_OUTPUT);
676 omap_mux_init_signal("sdrc_cke1", OMAP_PIN_OUTPUT);
678 beagle_display_init();
679 beagle_opp_init();
682 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
683 /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
684 .boot_params = 0x80000100,
685 .reserve = omap_reserve,
686 .map_io = omap3_map_io,
687 .init_early = omap3_beagle_init_early,
688 .init_irq = omap3_beagle_init_irq,
689 .init_machine = omap3_beagle_init,
690 .timer = &omap_timer,
691 MACHINE_END