omap3: Introduce function to detect the IGEP v2 hardwarerevision
[linux-2.6.git] / arch / arm / mach-omap2 / board-igep0020.c
blobe70bc872bc26f53fc235b556074acf6d6b36538d
1 /*
2 * Copyright (C) 2009 Integration Software and Electronic Engineering.
4 * Modified from mach-omap2/board-generic.c
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
9 */
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/platform_device.h>
14 #include <linux/delay.h>
15 #include <linux/err.h>
16 #include <linux/clk.h>
17 #include <linux/io.h>
18 #include <linux/gpio.h>
19 #include <linux/interrupt.h>
21 #include <linux/regulator/machine.h>
22 #include <linux/i2c/twl.h>
23 #include <linux/mmc/host.h>
25 #include <asm/mach-types.h>
26 #include <asm/mach/arch.h>
28 #include <plat/board.h>
29 #include <plat/common.h>
30 #include <plat/gpmc.h>
31 #include <plat/usb.h>
32 #include <plat/display.h>
33 #include <plat/onenand.h>
35 #include "mux.h"
36 #include "hsmmc.h"
37 #include "sdram-numonyx-m65kxxxxam.h"
39 #define IGEP2_SMSC911X_CS 5
40 #define IGEP2_SMSC911X_GPIO 176
41 #define IGEP2_GPIO_USBH_NRESET 24
42 #define IGEP2_GPIO_LED0_GREEN 26
43 #define IGEP2_GPIO_LED0_RED 27
44 #define IGEP2_GPIO_LED1_RED 28
45 #define IGEP2_GPIO_DVI_PUP 170
46 #define IGEP2_GPIO_WIFI_NPD 94
47 #define IGEP2_GPIO_WIFI_NRESET 95
50 * IGEP2 Hardware Revision Table
52 * --------------------------
53 * | Id. | Hw Rev. | HW0 (28) |
54 * --------------------------
55 * | 0 | B/C | high |
56 * | 1 | C | low |
57 * --------------------------
60 #define IGEP2_BOARD_HWREV_B 0
61 #define IGEP2_BOARD_HWREV_C 1
63 static u8 hwrev;
65 static void __init igep2_get_revision(void)
67 u8 ret;
69 omap_mux_init_gpio(IGEP2_GPIO_LED1_RED, OMAP_PIN_INPUT);
71 if ((gpio_request(IGEP2_GPIO_LED1_RED, "GPIO_HW0_REV") == 0) &&
72 (gpio_direction_input(IGEP2_GPIO_LED1_RED) == 0)) {
73 ret = gpio_get_value(IGEP2_GPIO_LED1_RED);
74 if (ret == 0) {
75 pr_info("IGEP2: Hardware Revision C (B-NON compatible)\n");
76 hwrev = IGEP2_BOARD_HWREV_C;
77 } else if (ret == 1) {
78 pr_info("IGEP2: Hardware Revision B/C (B compatible)\n");
79 hwrev = IGEP2_BOARD_HWREV_B;
80 } else {
81 pr_err("IGEP2: Unknown Hardware Revision\n");
82 hwrev = -1;
84 } else {
85 pr_warning("IGEP2: Could not obtain gpio GPIO_HW0_REV\n");
86 pr_err("IGEP2: Unknown Hardware Revision\n");
89 gpio_free(IGEP2_GPIO_LED1_RED);
92 #if defined(CONFIG_MTD_ONENAND_OMAP2) || \
93 defined(CONFIG_MTD_ONENAND_OMAP2_MODULE)
95 #define ONENAND_MAP 0x20000000
97 /* NAND04GR4E1A ( x2 Flash built-in COMBO POP MEMORY )
98 * Since the device is equipped with two DataRAMs, and two-plane NAND
99 * Flash memory array, these two component enables simultaneous program
100 * of 4KiB. Plane1 has only even blocks such as block0, block2, block4
101 * while Plane2 has only odd blocks such as block1, block3, block5.
102 * So MTD regards it as 4KiB page size and 256KiB block size 64*(2*2048)
105 static struct mtd_partition igep2_onenand_partitions[] = {
107 .name = "X-Loader",
108 .offset = 0,
109 .size = 2 * (64*(2*2048))
112 .name = "U-Boot",
113 .offset = MTDPART_OFS_APPEND,
114 .size = 6 * (64*(2*2048)),
117 .name = "Environment",
118 .offset = MTDPART_OFS_APPEND,
119 .size = 2 * (64*(2*2048)),
122 .name = "Kernel",
123 .offset = MTDPART_OFS_APPEND,
124 .size = 12 * (64*(2*2048)),
127 .name = "File System",
128 .offset = MTDPART_OFS_APPEND,
129 .size = MTDPART_SIZ_FULL,
133 static int igep2_onenand_setup(void __iomem *onenand_base, int freq)
135 /* nothing is required to be setup for onenand as of now */
136 return 0;
139 static struct omap_onenand_platform_data igep2_onenand_data = {
140 .parts = igep2_onenand_partitions,
141 .nr_parts = ARRAY_SIZE(igep2_onenand_partitions),
142 .onenand_setup = igep2_onenand_setup,
143 .dma_channel = -1, /* disable DMA in OMAP OneNAND driver */
146 static struct platform_device igep2_onenand_device = {
147 .name = "omap2-onenand",
148 .id = -1,
149 .dev = {
150 .platform_data = &igep2_onenand_data,
154 static void __init igep2_flash_init(void)
156 u8 cs = 0;
157 u8 onenandcs = GPMC_CS_NUM + 1;
159 while (cs < GPMC_CS_NUM) {
160 u32 ret = 0;
161 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
163 /* Check if NAND/oneNAND is configured */
164 if ((ret & 0xC00) == 0x800)
165 /* NAND found */
166 pr_err("IGEP v2: Unsupported NAND found\n");
167 else {
168 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG7);
169 if ((ret & 0x3F) == (ONENAND_MAP >> 24))
170 /* ONENAND found */
171 onenandcs = cs;
173 cs++;
175 if (onenandcs > GPMC_CS_NUM) {
176 pr_err("IGEP v2: Unable to find configuration in GPMC\n");
177 return;
180 if (onenandcs < GPMC_CS_NUM) {
181 igep2_onenand_data.cs = onenandcs;
182 if (platform_device_register(&igep2_onenand_device) < 0)
183 pr_err("IGEP v2: Unable to register OneNAND device\n");
187 #else
188 static void __init igep2_flash_init(void) {}
189 #endif
191 #if defined(CONFIG_SMSC911X) || defined(CONFIG_SMSC911X_MODULE)
193 #include <linux/smsc911x.h>
195 static struct smsc911x_platform_config igep2_smsc911x_config = {
196 .irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
197 .irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
198 .flags = SMSC911X_USE_32BIT | SMSC911X_SAVE_MAC_ADDRESS ,
199 .phy_interface = PHY_INTERFACE_MODE_MII,
202 static struct resource igep2_smsc911x_resources[] = {
204 .flags = IORESOURCE_MEM,
207 .start = OMAP_GPIO_IRQ(IGEP2_SMSC911X_GPIO),
208 .end = OMAP_GPIO_IRQ(IGEP2_SMSC911X_GPIO),
209 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
213 static struct platform_device igep2_smsc911x_device = {
214 .name = "smsc911x",
215 .id = 0,
216 .num_resources = ARRAY_SIZE(igep2_smsc911x_resources),
217 .resource = igep2_smsc911x_resources,
218 .dev = {
219 .platform_data = &igep2_smsc911x_config,
223 static inline void __init igep2_init_smsc911x(void)
225 unsigned long cs_mem_base;
227 if (gpmc_cs_request(IGEP2_SMSC911X_CS, SZ_16M, &cs_mem_base) < 0) {
228 pr_err("IGEP v2: Failed request for GPMC mem for smsc911x\n");
229 gpmc_cs_free(IGEP2_SMSC911X_CS);
230 return;
233 igep2_smsc911x_resources[0].start = cs_mem_base + 0x0;
234 igep2_smsc911x_resources[0].end = cs_mem_base + 0xff;
236 if ((gpio_request(IGEP2_SMSC911X_GPIO, "SMSC911X IRQ") == 0) &&
237 (gpio_direction_input(IGEP2_SMSC911X_GPIO) == 0)) {
238 gpio_export(IGEP2_SMSC911X_GPIO, 0);
239 } else {
240 pr_err("IGEP v2: Could not obtain gpio for for SMSC911X IRQ\n");
241 return;
244 platform_device_register(&igep2_smsc911x_device);
247 #else
248 static inline void __init igep2_init_smsc911x(void) { }
249 #endif
251 static struct omap_board_config_kernel igep2_config[] __initdata = {
254 static struct regulator_consumer_supply igep2_vmmc1_supply = {
255 .supply = "vmmc",
258 static struct regulator_consumer_supply igep2_vmmc2_supply = {
259 .supply = "vmmc",
262 /* VMMC1 for OMAP VDD_MMC1 (i/o) and MMC1 card */
263 static struct regulator_init_data igep2_vmmc1 = {
264 .constraints = {
265 .min_uV = 1850000,
266 .max_uV = 3150000,
267 .valid_modes_mask = REGULATOR_MODE_NORMAL
268 | REGULATOR_MODE_STANDBY,
269 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
270 | REGULATOR_CHANGE_MODE
271 | REGULATOR_CHANGE_STATUS,
273 .num_consumer_supplies = 1,
274 .consumer_supplies = &igep2_vmmc1_supply,
277 /* VMMC2 for OMAP VDD_MMC2 (i/o) and MMC2 WIFI */
278 static struct regulator_init_data igep2_vmmc2 = {
279 .constraints = {
280 .min_uV = 1850000,
281 .max_uV = 3150000,
282 .valid_modes_mask = REGULATOR_MODE_NORMAL
283 | REGULATOR_MODE_STANDBY,
284 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE
285 | REGULATOR_CHANGE_MODE
286 | REGULATOR_CHANGE_STATUS,
288 .num_consumer_supplies = 1,
289 .consumer_supplies = &igep2_vmmc2_supply,
292 static struct omap2_hsmmc_info mmc[] = {
294 .mmc = 1,
295 .caps = MMC_CAP_4_BIT_DATA,
296 .gpio_cd = -EINVAL,
297 .gpio_wp = -EINVAL,
300 .mmc = 2,
301 .caps = MMC_CAP_4_BIT_DATA,
302 .gpio_cd = -EINVAL,
303 .gpio_wp = -EINVAL,
305 {} /* Terminator */
308 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
309 #include <linux/leds.h>
311 static struct gpio_led igep2_gpio_leds[] = {
312 [0] = {
313 .name = "gpio-led:red:d0",
314 .gpio = IGEP2_GPIO_LED0_RED,
315 .default_trigger = "default-off"
317 [1] = {
318 .name = "gpio-led:green:d0",
319 .gpio = IGEP2_GPIO_LED0_GREEN,
320 .default_trigger = "default-off",
322 [2] = {
323 .name = "gpio-led:red:d1",
324 .gpio = IGEP2_GPIO_LED1_RED,
325 .default_trigger = "default-off",
327 [3] = {
328 .name = "gpio-led:green:d1",
329 .default_trigger = "heartbeat",
330 .gpio = -EINVAL, /* gets replaced */
334 static struct gpio_led_platform_data igep2_led_pdata = {
335 .leds = igep2_gpio_leds,
336 .num_leds = ARRAY_SIZE(igep2_gpio_leds),
339 static struct platform_device igep2_led_device = {
340 .name = "leds-gpio",
341 .id = -1,
342 .dev = {
343 .platform_data = &igep2_led_pdata,
347 static void __init igep2_leds_init(void)
349 platform_device_register(&igep2_led_device);
352 #else
353 static inline void igep2_leds_init(void)
355 if ((gpio_request(IGEP2_GPIO_LED0_RED, "gpio-led:red:d0") == 0) &&
356 (gpio_direction_output(IGEP2_GPIO_LED0_RED, 1) == 0)) {
357 gpio_export(IGEP2_GPIO_LED0_RED, 0);
358 gpio_set_value(IGEP2_GPIO_LED0_RED, 0);
359 } else
360 pr_warning("IGEP v2: Could not obtain gpio GPIO_LED0_RED\n");
362 if ((gpio_request(IGEP2_GPIO_LED0_GREEN, "gpio-led:green:d0") == 0) &&
363 (gpio_direction_output(IGEP2_GPIO_LED0_GREEN, 1) == 0)) {
364 gpio_export(IGEP2_GPIO_LED0_GREEN, 0);
365 gpio_set_value(IGEP2_GPIO_LED0_GREEN, 0);
366 } else
367 pr_warning("IGEP v2: Could not obtain gpio GPIO_LED0_GREEN\n");
369 if ((gpio_request(IGEP2_GPIO_LED1_RED, "gpio-led:red:d1") == 0) &&
370 (gpio_direction_output(IGEP2_GPIO_LED1_RED, 1) == 0)) {
371 gpio_export(IGEP2_GPIO_LED1_RED, 0);
372 gpio_set_value(IGEP2_GPIO_LED1_RED, 0);
373 } else
374 pr_warning("IGEP v2: Could not obtain gpio GPIO_LED1_RED\n");
377 #endif
379 static int igep2_twl_gpio_setup(struct device *dev,
380 unsigned gpio, unsigned ngpio)
382 /* gpio + 0 is "mmc0_cd" (input/IRQ) */
383 mmc[0].gpio_cd = gpio + 0;
384 omap2_hsmmc_init(mmc);
386 /* link regulators to MMC adapters ... we "know" the
387 * regulators will be set up only *after* we return.
389 igep2_vmmc1_supply.dev = mmc[0].dev;
390 igep2_vmmc2_supply.dev = mmc[1].dev;
393 * REVISIT: need ehci-omap hooks for external VBUS
394 * power switch and overcurrent detect
396 if ((gpio_request(gpio + 1, "GPIO_EHCI_NOC") < 0) ||
397 (gpio_direction_input(gpio + 1) < 0))
398 pr_err("IGEP2: Could not obtain gpio for EHCI NOC");
401 * TWL4030_GPIO_MAX + 0 == ledA, GPIO_USBH_CPEN
402 * (out, active low)
404 if ((gpio_request(gpio + TWL4030_GPIO_MAX, "GPIO_USBH_CPEN") < 0) ||
405 (gpio_direction_output(gpio + TWL4030_GPIO_MAX, 0) < 0))
406 pr_err("IGEP2: Could not obtain gpio for USBH_CPEN");
408 /* TWL4030_GPIO_MAX + 1 == ledB (out, active low LED) */
409 #if !defined(CONFIG_LEDS_GPIO) && !defined(CONFIG_LEDS_GPIO_MODULE)
410 if ((gpio_request(gpio+TWL4030_GPIO_MAX+1, "gpio-led:green:d1") == 0)
411 && (gpio_direction_output(gpio + TWL4030_GPIO_MAX + 1, 1) == 0)) {
412 gpio_export(gpio + TWL4030_GPIO_MAX + 1, 0);
413 gpio_set_value(gpio + TWL4030_GPIO_MAX + 1, 0);
414 } else
415 pr_warning("IGEP v2: Could not obtain gpio GPIO_LED1_GREEN\n");
416 #else
417 igep2_gpio_leds[3].gpio = gpio + TWL4030_GPIO_MAX + 1;
418 #endif
420 return 0;
423 static struct twl4030_gpio_platform_data igep2_twl4030_gpio_pdata = {
424 .gpio_base = OMAP_MAX_GPIO_LINES,
425 .irq_base = TWL4030_GPIO_IRQ_BASE,
426 .irq_end = TWL4030_GPIO_IRQ_END,
427 .use_leds = true,
428 .setup = igep2_twl_gpio_setup,
431 static struct twl4030_usb_data igep2_usb_data = {
432 .usb_mode = T2_USB_MODE_ULPI,
435 static int igep2_enable_dvi(struct omap_dss_device *dssdev)
437 gpio_direction_output(IGEP2_GPIO_DVI_PUP, 1);
439 return 0;
442 static void igep2_disable_dvi(struct omap_dss_device *dssdev)
444 gpio_direction_output(IGEP2_GPIO_DVI_PUP, 0);
447 static struct omap_dss_device igep2_dvi_device = {
448 .type = OMAP_DISPLAY_TYPE_DPI,
449 .name = "dvi",
450 .driver_name = "generic_panel",
451 .phy.dpi.data_lines = 24,
452 .platform_enable = igep2_enable_dvi,
453 .platform_disable = igep2_disable_dvi,
456 static struct omap_dss_device *igep2_dss_devices[] = {
457 &igep2_dvi_device
460 static struct omap_dss_board_info igep2_dss_data = {
461 .num_devices = ARRAY_SIZE(igep2_dss_devices),
462 .devices = igep2_dss_devices,
463 .default_device = &igep2_dvi_device,
466 static struct platform_device igep2_dss_device = {
467 .name = "omapdss",
468 .id = -1,
469 .dev = {
470 .platform_data = &igep2_dss_data,
474 static struct regulator_consumer_supply igep2_vpll2_supply = {
475 .supply = "vdds_dsi",
476 .dev = &igep2_dss_device.dev,
479 static struct regulator_init_data igep2_vpll2 = {
480 .constraints = {
481 .name = "VDVI",
482 .min_uV = 1800000,
483 .max_uV = 1800000,
484 .apply_uV = true,
485 .valid_modes_mask = REGULATOR_MODE_NORMAL
486 | REGULATOR_MODE_STANDBY,
487 .valid_ops_mask = REGULATOR_CHANGE_MODE
488 | REGULATOR_CHANGE_STATUS,
490 .num_consumer_supplies = 1,
491 .consumer_supplies = &igep2_vpll2_supply,
494 static void __init igep2_display_init(void)
496 if (gpio_request(IGEP2_GPIO_DVI_PUP, "GPIO_DVI_PUP") &&
497 gpio_direction_output(IGEP2_GPIO_DVI_PUP, 1))
498 pr_err("IGEP v2: Could not obtain gpio GPIO_DVI_PUP\n");
501 static struct platform_device *igep2_devices[] __initdata = {
502 &igep2_dss_device,
505 static void __init igep2_init_irq(void)
507 omap_board_config = igep2_config;
508 omap_board_config_size = ARRAY_SIZE(igep2_config);
509 omap2_init_common_hw(m65kxxxxam_sdrc_params, m65kxxxxam_sdrc_params);
510 omap_init_irq();
511 omap_gpio_init();
514 static struct twl4030_codec_audio_data igep2_audio_data = {
515 .audio_mclk = 26000000,
518 static struct twl4030_codec_data igep2_codec_data = {
519 .audio_mclk = 26000000,
520 .audio = &igep2_audio_data,
523 static struct twl4030_platform_data igep2_twldata = {
524 .irq_base = TWL4030_IRQ_BASE,
525 .irq_end = TWL4030_IRQ_END,
527 /* platform_data for children goes here */
528 .usb = &igep2_usb_data,
529 .codec = &igep2_codec_data,
530 .gpio = &igep2_twl4030_gpio_pdata,
531 .vmmc1 = &igep2_vmmc1,
532 .vmmc2 = &igep2_vmmc2,
533 .vpll2 = &igep2_vpll2,
537 static struct i2c_board_info __initdata igep2_i2c_boardinfo[] = {
539 I2C_BOARD_INFO("twl4030", 0x48),
540 .flags = I2C_CLIENT_WAKE,
541 .irq = INT_34XX_SYS_NIRQ,
542 .platform_data = &igep2_twldata,
546 static int __init igep2_i2c_init(void)
548 omap_register_i2c_bus(1, 2600, igep2_i2c_boardinfo,
549 ARRAY_SIZE(igep2_i2c_boardinfo));
550 /* Bus 3 is attached to the DVI port where devices like the pico DLP
551 * projector don't work reliably with 400kHz */
552 omap_register_i2c_bus(3, 100, NULL, 0);
553 return 0;
556 static struct omap_musb_board_data musb_board_data = {
557 .interface_type = MUSB_INTERFACE_ULPI,
558 .mode = MUSB_OTG,
559 .power = 100,
562 static const struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
563 .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
564 .port_mode[1] = EHCI_HCD_OMAP_MODE_UNKNOWN,
565 .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
567 .phy_reset = true,
568 .reset_gpio_port[0] = IGEP2_GPIO_USBH_NRESET,
569 .reset_gpio_port[1] = -EINVAL,
570 .reset_gpio_port[2] = -EINVAL,
573 #ifdef CONFIG_OMAP_MUX
574 static struct omap_board_mux board_mux[] __initdata = {
575 { .reg_offset = OMAP_MUX_TERMINATOR },
577 #else
578 #define board_mux NULL
579 #endif
581 static void __init igep2_init(void)
583 omap3_mux_init(board_mux, OMAP_PACKAGE_CBB);
585 /* Get IGEP2 hardware revision */
586 igep2_get_revision();
588 igep2_i2c_init();
589 platform_add_devices(igep2_devices, ARRAY_SIZE(igep2_devices));
590 omap_serial_init();
591 usb_musb_init(&musb_board_data);
592 usb_ehci_init(&ehci_pdata);
594 igep2_flash_init();
595 igep2_leds_init();
596 igep2_display_init();
597 igep2_init_smsc911x();
599 /* GPIO W-LAN + Bluetooth combo module */
600 if ((gpio_request(IGEP2_GPIO_WIFI_NPD, "GPIO_WIFI_NPD") == 0) &&
601 (gpio_direction_output(IGEP2_GPIO_WIFI_NPD, 1) == 0)) {
602 gpio_export(IGEP2_GPIO_WIFI_NPD, 0);
603 /* gpio_set_value(IGEP2_GPIO_WIFI_NPD, 0); */
604 } else
605 pr_warning("IGEP v2: Could not obtain gpio GPIO_WIFI_NPD\n");
607 if ((gpio_request(IGEP2_GPIO_WIFI_NRESET, "GPIO_WIFI_NRESET") == 0) &&
608 (gpio_direction_output(IGEP2_GPIO_WIFI_NRESET, 1) == 0)) {
609 gpio_export(IGEP2_GPIO_WIFI_NRESET, 0);
610 gpio_set_value(IGEP2_GPIO_WIFI_NRESET, 0);
611 udelay(10);
612 gpio_set_value(IGEP2_GPIO_WIFI_NRESET, 1);
613 } else
614 pr_warning("IGEP v2: Could not obtain gpio GPIO_WIFI_NRESET\n");
617 MACHINE_START(IGEP0020, "IGEP v2 board")
618 .phys_io = 0x48000000,
619 .io_pg_offst = ((0xfa000000) >> 18) & 0xfffc,
620 .boot_params = 0x80000100,
621 .map_io = omap3_map_io,
622 .reserve = omap_reserve,
623 .init_irq = igep2_init_irq,
624 .init_machine = igep2_init,
625 .timer = &omap_timer,
626 MACHINE_END