x86, efi: Set runtime_version to the EFI spec revision
[linux/fpc-iii.git] / arch / arm / mach-s3c24xx / mach-gta02.c
blob973b87ca87f4a065fd212090ab67eb68fbfe5b73
1 /*
2 * linux/arch/arm/mach-s3c2442/mach-gta02.c
4 * S3C2442 Machine Support for Openmoko GTA02 / FreeRunner.
6 * Copyright (C) 2006-2009 by Openmoko, Inc.
7 * Authors: Harald Welte <laforge@openmoko.org>
8 * Andy Green <andy@openmoko.org>
9 * Werner Almesberger <werner@openmoko.org>
10 * All rights reserved.
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License as
14 * published by the Free Software Foundation; either version 2 of
15 * the License, or (at your option) any later version.
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
25 * MA 02111-1307 USA
29 #include <linux/kernel.h>
30 #include <linux/types.h>
31 #include <linux/interrupt.h>
32 #include <linux/list.h>
33 #include <linux/delay.h>
34 #include <linux/timer.h>
35 #include <linux/init.h>
36 #include <linux/gpio.h>
37 #include <linux/workqueue.h>
38 #include <linux/platform_device.h>
39 #include <linux/serial_core.h>
40 #include <linux/spi/spi.h>
41 #include <linux/spi/s3c24xx.h>
43 #include <linux/mmc/host.h>
45 #include <linux/mtd/mtd.h>
46 #include <linux/mtd/nand.h>
47 #include <linux/mtd/nand_ecc.h>
48 #include <linux/mtd/partitions.h>
49 #include <linux/mtd/physmap.h>
50 #include <linux/io.h>
52 #include <linux/i2c.h>
53 #include <linux/regulator/machine.h>
55 #include <linux/mfd/pcf50633/core.h>
56 #include <linux/mfd/pcf50633/mbc.h>
57 #include <linux/mfd/pcf50633/adc.h>
58 #include <linux/mfd/pcf50633/gpio.h>
59 #include <linux/mfd/pcf50633/pmic.h>
60 #include <linux/mfd/pcf50633/backlight.h>
62 #include <linux/input.h>
63 #include <linux/gpio_keys.h>
65 #include <asm/mach/arch.h>
66 #include <asm/mach/map.h>
67 #include <asm/mach/irq.h>
69 #include <asm/irq.h>
70 #include <asm/mach-types.h>
72 #include <mach/regs-irq.h>
73 #include <mach/regs-gpio.h>
74 #include <mach/fb.h>
76 #include <linux/platform_data/usb-ohci-s3c2410.h>
77 #include <mach/regs-mem.h>
78 #include <mach/hardware.h>
80 #include <mach/gta02.h>
82 #include <plat/regs-serial.h>
83 #include <linux/platform_data/mtd-nand-s3c2410.h>
84 #include <plat/devs.h>
85 #include <plat/cpu.h>
86 #include <plat/pm.h>
87 #include <linux/platform_data/usb-s3c2410_udc.h>
88 #include <plat/gpio-cfg.h>
89 #include <linux/platform_data/i2c-s3c2410.h>
90 #include <linux/platform_data/touchscreen-s3c2410.h>
92 #include "common.h"
94 static struct pcf50633 *gta02_pcf;
97 * This gets called frequently when we paniced.
100 static long gta02_panic_blink(int state)
102 long delay = 0;
103 char led;
105 led = (state) ? 1 : 0;
106 gpio_direction_output(GTA02_GPIO_AUX_LED, led);
108 return delay;
112 static struct map_desc gta02_iodesc[] __initdata = {
114 .virtual = 0xe0000000,
115 .pfn = __phys_to_pfn(S3C2410_CS3 + 0x01000000),
116 .length = SZ_1M,
117 .type = MT_DEVICE
121 #define UCON (S3C2410_UCON_DEFAULT | S3C2443_UCON_RXERR_IRQEN)
122 #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB)
123 #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
125 static struct s3c2410_uartcfg gta02_uartcfgs[] = {
126 [0] = {
127 .hwport = 0,
128 .flags = 0,
129 .ucon = UCON,
130 .ulcon = ULCON,
131 .ufcon = UFCON,
133 [1] = {
134 .hwport = 1,
135 .flags = 0,
136 .ucon = UCON,
137 .ulcon = ULCON,
138 .ufcon = UFCON,
140 [2] = {
141 .hwport = 2,
142 .flags = 0,
143 .ucon = UCON,
144 .ulcon = ULCON,
145 .ufcon = UFCON,
149 #ifdef CONFIG_CHARGER_PCF50633
151 * On GTA02 the 1A charger features a 48K resistor to 0V on the ID pin.
152 * We use this to recognize that we can pull 1A from the USB socket.
154 * These constants are the measured pcf50633 ADC levels with the 1A
155 * charger / 48K resistor, and with no pulldown resistor.
158 #define ADC_NOM_CHG_DETECT_1A 6
159 #define ADC_NOM_CHG_DETECT_USB 43
161 static void
162 gta02_configure_pmu_for_charger(struct pcf50633 *pcf, void *unused, int res)
164 int ma;
166 /* Interpret charger type */
167 if (res < ((ADC_NOM_CHG_DETECT_USB + ADC_NOM_CHG_DETECT_1A) / 2)) {
170 * Sanity - stop GPO driving out now that we have a 1A charger
171 * GPO controls USB Host power generation on GTA02
173 pcf50633_gpio_set(pcf, PCF50633_GPO, 0);
175 ma = 1000;
176 } else
177 ma = 100;
179 pcf50633_mbc_usb_curlim_set(pcf, ma);
182 static struct delayed_work gta02_charger_work;
183 static int gta02_usb_vbus_draw;
185 static void gta02_charger_worker(struct work_struct *work)
187 if (gta02_usb_vbus_draw) {
188 pcf50633_mbc_usb_curlim_set(gta02_pcf, gta02_usb_vbus_draw);
189 return;
192 #ifdef CONFIG_PCF50633_ADC
193 pcf50633_adc_async_read(gta02_pcf,
194 PCF50633_ADCC1_MUX_ADCIN1,
195 PCF50633_ADCC1_AVERAGE_16,
196 gta02_configure_pmu_for_charger,
197 NULL);
198 #else
200 * If the PCF50633 ADC is disabled we fallback to a
201 * 100mA limit for safety.
203 pcf50633_mbc_usb_curlim_set(pcf, 100);
204 #endif
207 #define GTA02_CHARGER_CONFIGURE_TIMEOUT ((3000 * HZ) / 1000)
209 static void gta02_pmu_event_callback(struct pcf50633 *pcf, int irq)
211 if (irq == PCF50633_IRQ_USBINS) {
212 schedule_delayed_work(&gta02_charger_work,
213 GTA02_CHARGER_CONFIGURE_TIMEOUT);
215 return;
218 if (irq == PCF50633_IRQ_USBREM) {
219 cancel_delayed_work_sync(&gta02_charger_work);
220 gta02_usb_vbus_draw = 0;
224 static void gta02_udc_vbus_draw(unsigned int ma)
226 if (!gta02_pcf)
227 return;
229 gta02_usb_vbus_draw = ma;
231 schedule_delayed_work(&gta02_charger_work,
232 GTA02_CHARGER_CONFIGURE_TIMEOUT);
234 #else /* !CONFIG_CHARGER_PCF50633 */
235 #define gta02_pmu_event_callback NULL
236 #define gta02_udc_vbus_draw NULL
237 #endif
240 * This is called when pc50633 is probed, unfortunately quite late in the
241 * day since it is an I2C bus device. Here we can belatedly define some
242 * platform devices with the advantage that we can mark the pcf50633 as the
243 * parent. This makes them get suspended and resumed with their parent
244 * the pcf50633 still around.
247 static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf);
250 static char *gta02_batteries[] = {
251 "battery",
254 static struct pcf50633_bl_platform_data gta02_backlight_data = {
255 .default_brightness = 0x3f,
256 .default_brightness_limit = 0,
257 .ramp_time = 5,
260 static struct pcf50633_platform_data gta02_pcf_pdata = {
261 .resumers = {
262 [0] = PCF50633_INT1_USBINS |
263 PCF50633_INT1_USBREM |
264 PCF50633_INT1_ALARM,
265 [1] = PCF50633_INT2_ONKEYF,
266 [2] = PCF50633_INT3_ONKEY1S,
267 [3] = PCF50633_INT4_LOWSYS |
268 PCF50633_INT4_LOWBAT |
269 PCF50633_INT4_HIGHTMP,
272 .batteries = gta02_batteries,
273 .num_batteries = ARRAY_SIZE(gta02_batteries),
275 .charger_reference_current_ma = 1000,
277 .backlight_data = &gta02_backlight_data,
279 .reg_init_data = {
280 [PCF50633_REGULATOR_AUTO] = {
281 .constraints = {
282 .min_uV = 3300000,
283 .max_uV = 3300000,
284 .valid_modes_mask = REGULATOR_MODE_NORMAL,
285 .always_on = 1,
286 .apply_uV = 1,
289 [PCF50633_REGULATOR_DOWN1] = {
290 .constraints = {
291 .min_uV = 1300000,
292 .max_uV = 1600000,
293 .valid_modes_mask = REGULATOR_MODE_NORMAL,
294 .always_on = 1,
295 .apply_uV = 1,
298 [PCF50633_REGULATOR_DOWN2] = {
299 .constraints = {
300 .min_uV = 1800000,
301 .max_uV = 1800000,
302 .valid_modes_mask = REGULATOR_MODE_NORMAL,
303 .apply_uV = 1,
304 .always_on = 1,
307 [PCF50633_REGULATOR_HCLDO] = {
308 .constraints = {
309 .min_uV = 2000000,
310 .max_uV = 3300000,
311 .valid_modes_mask = REGULATOR_MODE_NORMAL,
312 .valid_ops_mask = REGULATOR_CHANGE_VOLTAGE |
313 REGULATOR_CHANGE_STATUS,
316 [PCF50633_REGULATOR_LDO1] = {
317 .constraints = {
318 .min_uV = 3300000,
319 .max_uV = 3300000,
320 .valid_modes_mask = REGULATOR_MODE_NORMAL,
321 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
322 .apply_uV = 1,
325 [PCF50633_REGULATOR_LDO2] = {
326 .constraints = {
327 .min_uV = 3300000,
328 .max_uV = 3300000,
329 .valid_modes_mask = REGULATOR_MODE_NORMAL,
330 .apply_uV = 1,
333 [PCF50633_REGULATOR_LDO3] = {
334 .constraints = {
335 .min_uV = 3000000,
336 .max_uV = 3000000,
337 .valid_modes_mask = REGULATOR_MODE_NORMAL,
338 .apply_uV = 1,
341 [PCF50633_REGULATOR_LDO4] = {
342 .constraints = {
343 .min_uV = 3200000,
344 .max_uV = 3200000,
345 .valid_modes_mask = REGULATOR_MODE_NORMAL,
346 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
347 .apply_uV = 1,
350 [PCF50633_REGULATOR_LDO5] = {
351 .constraints = {
352 .min_uV = 3000000,
353 .max_uV = 3000000,
354 .valid_modes_mask = REGULATOR_MODE_NORMAL,
355 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
356 .apply_uV = 1,
359 [PCF50633_REGULATOR_LDO6] = {
360 .constraints = {
361 .min_uV = 3000000,
362 .max_uV = 3000000,
363 .valid_modes_mask = REGULATOR_MODE_NORMAL,
366 [PCF50633_REGULATOR_MEMLDO] = {
367 .constraints = {
368 .min_uV = 1800000,
369 .max_uV = 1800000,
370 .valid_modes_mask = REGULATOR_MODE_NORMAL,
375 .probe_done = gta02_pmu_attach_child_devices,
376 .mbc_event_callback = gta02_pmu_event_callback,
380 /* NOR Flash. */
382 #define GTA02_FLASH_BASE 0x18000000 /* GCS3 */
383 #define GTA02_FLASH_SIZE 0x200000 /* 2MBytes */
385 static struct physmap_flash_data gta02_nor_flash_data = {
386 .width = 2,
389 static struct resource gta02_nor_flash_resource =
390 DEFINE_RES_MEM(GTA02_FLASH_BASE, GTA02_FLASH_SIZE);
392 static struct platform_device gta02_nor_flash = {
393 .name = "physmap-flash",
394 .id = 0,
395 .dev = {
396 .platform_data = &gta02_nor_flash_data,
398 .resource = &gta02_nor_flash_resource,
399 .num_resources = 1,
403 static struct platform_device s3c24xx_pwm_device = {
404 .name = "s3c24xx_pwm",
405 .num_resources = 0,
408 static struct platform_device gta02_dfbmcs320_device = {
409 .name = "dfbmcs320",
412 static struct i2c_board_info gta02_i2c_devs[] __initdata = {
414 I2C_BOARD_INFO("pcf50633", 0x73),
415 .irq = GTA02_IRQ_PCF50633,
416 .platform_data = &gta02_pcf_pdata,
419 I2C_BOARD_INFO("wm8753", 0x1a),
423 static struct s3c2410_nand_set __initdata gta02_nand_sets[] = {
424 [0] = {
426 * This name is also hard-coded in the boot loaders, so
427 * changing it would would require all users to upgrade
428 * their boot loaders, some of which are stored in a NOR
429 * that is considered to be immutable.
431 .name = "neo1973-nand",
432 .nr_chips = 1,
433 .flash_bbt = 1,
438 * Choose a set of timings derived from S3C@2442B MCP54
439 * data sheet (K5D2G13ACM-D075 MCP Memory).
442 static struct s3c2410_platform_nand __initdata gta02_nand_info = {
443 .tacls = 0,
444 .twrph0 = 25,
445 .twrph1 = 15,
446 .nr_sets = ARRAY_SIZE(gta02_nand_sets),
447 .sets = gta02_nand_sets,
451 /* Get PMU to set USB current limit accordingly. */
452 static struct s3c2410_udc_mach_info gta02_udc_cfg __initdata = {
453 .vbus_draw = gta02_udc_vbus_draw,
454 .pullup_pin = GTA02_GPIO_USB_PULLUP,
457 /* USB */
458 static struct s3c2410_hcd_info gta02_usb_info __initdata = {
459 .port[0] = {
460 .flags = S3C_HCDFLG_USED,
462 .port[1] = {
463 .flags = 0,
467 /* Touchscreen */
468 static struct s3c2410_ts_mach_info gta02_ts_info = {
469 .delay = 10000,
470 .presc = 0xff, /* slow as we can go */
471 .oversampling_shift = 2,
474 /* Buttons */
475 static struct gpio_keys_button gta02_buttons[] = {
477 .gpio = GTA02_GPIO_AUX_KEY,
478 .code = KEY_PHONE,
479 .desc = "Aux",
480 .type = EV_KEY,
481 .debounce_interval = 100,
484 .gpio = GTA02_GPIO_HOLD_KEY,
485 .code = KEY_PAUSE,
486 .desc = "Hold",
487 .type = EV_KEY,
488 .debounce_interval = 100,
492 static struct gpio_keys_platform_data gta02_buttons_pdata = {
493 .buttons = gta02_buttons,
494 .nbuttons = ARRAY_SIZE(gta02_buttons),
497 static struct platform_device gta02_buttons_device = {
498 .name = "gpio-keys",
499 .id = -1,
500 .dev = {
501 .platform_data = &gta02_buttons_pdata,
505 static void __init gta02_map_io(void)
507 s3c24xx_init_io(gta02_iodesc, ARRAY_SIZE(gta02_iodesc));
508 s3c24xx_init_clocks(12000000);
509 s3c24xx_init_uarts(gta02_uartcfgs, ARRAY_SIZE(gta02_uartcfgs));
513 /* These are the guys that don't need to be children of PMU. */
515 static struct platform_device *gta02_devices[] __initdata = {
516 &s3c_device_ohci,
517 &s3c_device_wdt,
518 &s3c_device_sdi,
519 &s3c_device_usbgadget,
520 &s3c_device_nand,
521 &gta02_nor_flash,
522 &s3c24xx_pwm_device,
523 &s3c_device_iis,
524 &s3c_device_i2c0,
525 &gta02_dfbmcs320_device,
526 &gta02_buttons_device,
527 &s3c_device_adc,
528 &s3c_device_ts,
531 /* These guys DO need to be children of PMU. */
533 static struct platform_device *gta02_devices_pmu_children[] = {
538 * This is called when pc50633 is probed, quite late in the day since it is an
539 * I2C bus device. Here we can define platform devices with the advantage that
540 * we can mark the pcf50633 as the parent. This makes them get suspended and
541 * resumed with their parent the pcf50633 still around. All devices whose
542 * operation depends on something from pcf50633 must have this relationship
543 * made explicit like this, or suspend and resume will become an unreliable
544 * hellworld.
547 static void gta02_pmu_attach_child_devices(struct pcf50633 *pcf)
549 int n;
551 /* Grab a copy of the now probed PMU pointer. */
552 gta02_pcf = pcf;
554 for (n = 0; n < ARRAY_SIZE(gta02_devices_pmu_children); n++)
555 gta02_devices_pmu_children[n]->dev.parent = pcf->dev;
557 platform_add_devices(gta02_devices_pmu_children,
558 ARRAY_SIZE(gta02_devices_pmu_children));
561 static void gta02_poweroff(void)
563 pcf50633_reg_set_bit_mask(gta02_pcf, PCF50633_REG_OOCSHDWN, 1, 1);
566 static void __init gta02_machine_init(void)
568 /* Set the panic callback to turn AUX LED on or off. */
569 panic_blink = gta02_panic_blink;
571 s3c_pm_init();
573 #ifdef CONFIG_CHARGER_PCF50633
574 INIT_DELAYED_WORK(&gta02_charger_work, gta02_charger_worker);
575 #endif
577 s3c24xx_udc_set_platdata(&gta02_udc_cfg);
578 s3c24xx_ts_set_platdata(&gta02_ts_info);
579 s3c_ohci_set_platdata(&gta02_usb_info);
580 s3c_nand_set_platdata(&gta02_nand_info);
581 s3c_i2c0_set_platdata(NULL);
583 i2c_register_board_info(0, gta02_i2c_devs, ARRAY_SIZE(gta02_i2c_devs));
585 platform_add_devices(gta02_devices, ARRAY_SIZE(gta02_devices));
586 pm_power_off = gta02_poweroff;
588 regulator_has_full_constraints();
592 MACHINE_START(NEO1973_GTA02, "GTA02")
593 /* Maintainer: Nelson Castillo <arhuaco@freaks-unidos.net> */
594 .atag_offset = 0x100,
595 .map_io = gta02_map_io,
596 .init_irq = s3c24xx_init_irq,
597 .init_machine = gta02_machine_init,
598 .timer = &s3c24xx_timer,
599 .restart = s3c244x_restart,
600 MACHINE_END