2 * linux/arch/arm/mach-omap1/board-ams-delta.c
4 * Modified from board-generic.c
6 * Board specific inits for the Amstrad E3 (codename Delta) videophone
8 * Copyright (C) 2006 Jonathan McDowell <noodles@earth.li>
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.
14 #include <linux/gpio/driver.h>
15 #include <linux/gpio/machine.h>
16 #include <linux/gpio.h>
17 #include <linux/kernel.h>
18 #include <linux/init.h>
19 #include <linux/input.h>
20 #include <linux/interrupt.h>
21 #include <linux/leds.h>
22 #include <linux/platform_device.h>
23 #include <linux/regulator/consumer.h>
24 #include <linux/regulator/fixed.h>
25 #include <linux/regulator/machine.h>
26 #include <linux/serial_8250.h>
27 #include <linux/export.h>
28 #include <linux/omapfb.h>
30 #include <linux/platform_data/gpio-omap.h>
32 #include <media/soc_camera.h>
34 #include <asm/serial.h>
35 #include <asm/mach-types.h>
36 #include <asm/mach/arch.h>
37 #include <asm/mach/map.h>
39 #include <mach/board-ams-delta.h>
40 #include <linux/platform_data/keypad-omap.h>
43 #include <mach/hardware.h>
47 #include "ams-delta-fiq.h"
51 static const unsigned int ams_delta_keymap[] = {
52 KEY(0, 0, KEY_F1), /* Advert */
54 KEY(0, 3, KEY_COFFEE), /* Games */
55 KEY(0, 2, KEY_QUESTION), /* Directory */
56 KEY(2, 3, KEY_CONNECT), /* Internet */
57 KEY(1, 2, KEY_SHOP), /* Services */
58 KEY(1, 1, KEY_PHONE), /* VoiceMail */
60 KEY(0, 1, KEY_DELETE), /* Delete */
61 KEY(2, 2, KEY_PLAY), /* Play */
62 KEY(1, 0, KEY_PAGEUP), /* Up */
63 KEY(1, 3, KEY_PAGEDOWN), /* Down */
64 KEY(2, 0, KEY_EMAIL), /* ReadEmail */
65 KEY(2, 1, KEY_STOP), /* Stop */
67 /* Numeric keypad portion */
78 KEY(3, 7, KEY_KPASTERISK),
79 KEY(3, 5, KEY_KPDOT), /* # key */
80 KEY(7, 2, KEY_NUMLOCK), /* Mute */
81 KEY(7, 1, KEY_KPMINUS), /* Recall */
82 KEY(6, 1, KEY_KPPLUS), /* Redial */
83 KEY(7, 6, KEY_KPSLASH), /* Handsfree */
84 KEY(6, 0, KEY_ENTER), /* Video */
86 KEY(7, 4, KEY_CAMERA), /* Photo */
88 KEY(0, 4, KEY_F2), /* Home */
89 KEY(1, 4, KEY_F3), /* Office */
90 KEY(2, 4, KEY_F4), /* Mobile */
91 KEY(7, 7, KEY_F5), /* SMS */
92 KEY(7, 5, KEY_F6), /* Email */
94 /* QWERTY portion of keypad */
123 KEY(6, 2, KEY_SPACE),
125 KEY(7, 0, KEY_LEFTSHIFT), /* Vol up */
126 KEY(7, 3, KEY_LEFTCTRL), /* Vol down */
129 #define LATCH1_PHYS 0x01000000
130 #define LATCH1_VIRT 0xEA000000
131 #define MODEM_PHYS 0x04000000
132 #define MODEM_VIRT 0xEB000000
133 #define LATCH2_PHYS 0x08000000
134 #define LATCH2_VIRT 0xEC000000
136 static struct map_desc ams_delta_io_desc[] __initdata = {
137 /* AMS_DELTA_LATCH1 */
139 .virtual = LATCH1_VIRT,
140 .pfn = __phys_to_pfn(LATCH1_PHYS),
141 .length = 0x01000000,
144 /* AMS_DELTA_LATCH2 */
146 .virtual = LATCH2_VIRT,
147 .pfn = __phys_to_pfn(LATCH2_PHYS),
148 .length = 0x01000000,
151 /* AMS_DELTA_MODEM */
153 .virtual = MODEM_VIRT,
154 .pfn = __phys_to_pfn(MODEM_PHYS),
155 .length = 0x01000000,
160 static const struct omap_lcd_config ams_delta_lcd_config __initconst = {
161 .ctrl_name = "internal",
164 static struct omap_usb_config ams_delta_usb_config __initdata = {
170 #define LATCH1_GPIO_BASE 232
171 #define LATCH1_NGPIO 8
173 static struct resource latch1_resources[] = {
176 .start = LATCH1_PHYS,
177 .end = LATCH1_PHYS + (LATCH1_NGPIO - 1) / 8,
178 .flags = IORESOURCE_MEM,
182 #define LATCH1_LABEL "latch1"
184 static struct bgpio_pdata latch1_pdata = {
185 .label = LATCH1_LABEL,
186 .base = LATCH1_GPIO_BASE,
187 .ngpio = LATCH1_NGPIO,
190 static struct platform_device latch1_gpio_device = {
191 .name = "basic-mmio-gpio",
193 .resource = latch1_resources,
194 .num_resources = ARRAY_SIZE(latch1_resources),
196 .platform_data = &latch1_pdata,
200 #define LATCH1_PIN_LED_CAMERA 0
201 #define LATCH1_PIN_LED_ADVERT 1
202 #define LATCH1_PIN_LED_MAIL 2
203 #define LATCH1_PIN_LED_HANDSFREE 3
204 #define LATCH1_PIN_LED_VOICEMAIL 4
205 #define LATCH1_PIN_LED_VOICE 5
206 #define LATCH1_PIN_DOCKIT1 6
207 #define LATCH1_PIN_DOCKIT2 7
209 static struct resource latch2_resources[] = {
212 .start = LATCH2_PHYS,
213 .end = LATCH2_PHYS + (AMS_DELTA_LATCH2_NGPIO - 1) / 8,
214 .flags = IORESOURCE_MEM,
218 #define LATCH2_LABEL "latch2"
220 static struct bgpio_pdata latch2_pdata = {
221 .label = LATCH2_LABEL,
222 .base = AMS_DELTA_LATCH2_GPIO_BASE,
223 .ngpio = AMS_DELTA_LATCH2_NGPIO,
226 static struct platform_device latch2_gpio_device = {
227 .name = "basic-mmio-gpio",
229 .resource = latch2_resources,
230 .num_resources = ARRAY_SIZE(latch2_resources),
232 .platform_data = &latch2_pdata,
236 #define LATCH2_PIN_LCD_VBLEN 0
237 #define LATCH2_PIN_LCD_NDISP 1
238 #define LATCH2_PIN_NAND_NCE 2
239 #define LATCH2_PIN_NAND_NRE 3
240 #define LATCH2_PIN_NAND_NWP 4
241 #define LATCH2_PIN_NAND_NWE 5
242 #define LATCH2_PIN_NAND_ALE 6
243 #define LATCH2_PIN_NAND_CLE 7
244 #define LATCH2_PIN_KEYBRD_PWR 8
245 #define LATCH2_PIN_KEYBRD_DATAOUT 9
246 #define LATCH2_PIN_SCARD_RSTIN 10
247 #define LATCH2_PIN_SCARD_CMDVCC 11
248 #define LATCH2_PIN_MODEM_NRESET 12
249 #define LATCH2_PIN_MODEM_CODEC 13
250 #define LATCH2_PIN_HOOKFLASH1 14
251 #define LATCH2_PIN_HOOKFLASH2 15
253 static const struct gpio latch_gpios[] __initconst = {
255 .gpio = LATCH1_GPIO_BASE + 6,
256 .flags = GPIOF_OUT_INIT_LOW,
260 .gpio = LATCH1_GPIO_BASE + 7,
261 .flags = GPIOF_OUT_INIT_LOW,
265 .gpio = AMS_DELTA_GPIO_PIN_SCARD_RSTIN,
266 .flags = GPIOF_OUT_INIT_LOW,
267 .label = "scard_rstin",
270 .gpio = AMS_DELTA_GPIO_PIN_SCARD_CMDVCC,
271 .flags = GPIOF_OUT_INIT_LOW,
272 .label = "scard_cmdvcc",
275 .gpio = AMS_DELTA_LATCH2_GPIO_BASE + 14,
276 .flags = GPIOF_OUT_INIT_LOW,
277 .label = "hookflash1",
280 .gpio = AMS_DELTA_LATCH2_GPIO_BASE + 15,
281 .flags = GPIOF_OUT_INIT_LOW,
282 .label = "hookflash2",
286 static struct regulator_consumer_supply modem_nreset_consumers[] = {
287 REGULATOR_SUPPLY("RESET#", "serial8250.1"),
288 REGULATOR_SUPPLY("POR", "cx20442-codec"),
291 static struct regulator_init_data modem_nreset_data = {
293 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
296 .num_consumer_supplies = ARRAY_SIZE(modem_nreset_consumers),
297 .consumer_supplies = modem_nreset_consumers,
300 static struct fixed_voltage_config modem_nreset_config = {
301 .supply_name = "modem_nreset",
302 .microvolts = 3300000,
303 .gpio = AMS_DELTA_GPIO_PIN_MODEM_NRESET,
304 .startup_delay = 25000,
306 .enabled_at_boot = 1,
307 .init_data = &modem_nreset_data,
310 static struct platform_device modem_nreset_device = {
311 .name = "reg-fixed-voltage",
314 .platform_data = &modem_nreset_config,
318 struct modem_private_data {
319 struct regulator *regulator;
322 static struct modem_private_data modem_priv;
324 static struct resource ams_delta_nand_resources[] = {
326 .start = OMAP1_MPUIO_BASE,
327 .end = OMAP1_MPUIO_BASE +
328 OMAP_MPUIO_IO_CNTL + sizeof(u32) - 1,
329 .flags = IORESOURCE_MEM,
333 static struct platform_device ams_delta_nand_device = {
334 .name = "ams-delta-nand",
336 .num_resources = ARRAY_SIZE(ams_delta_nand_resources),
337 .resource = ams_delta_nand_resources,
340 #define OMAP_GPIO_LABEL "gpio-0-15"
342 static struct gpiod_lookup_table ams_delta_nand_gpio_table = {
344 GPIO_LOOKUP(OMAP_GPIO_LABEL, AMS_DELTA_GPIO_PIN_NAND_RB, "rdy",
346 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NCE, "nce", 0),
347 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NRE, "nre", 0),
348 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NWP, "nwp", 0),
349 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NWE, "nwe", 0),
350 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_ALE, "ale", 0),
351 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_CLE, "cle", 0),
356 static struct resource ams_delta_kp_resources[] = {
358 .start = INT_KEYBOARD,
360 .flags = IORESOURCE_IRQ,
364 static const struct matrix_keymap_data ams_delta_keymap_data = {
365 .keymap = ams_delta_keymap,
366 .keymap_size = ARRAY_SIZE(ams_delta_keymap),
369 static struct omap_kp_platform_data ams_delta_kp_data = {
372 .keymap_data = &ams_delta_keymap_data,
376 static struct platform_device ams_delta_kp_device = {
377 .name = "omap-keypad",
380 .platform_data = &ams_delta_kp_data,
382 .num_resources = ARRAY_SIZE(ams_delta_kp_resources),
383 .resource = ams_delta_kp_resources,
386 static struct platform_device ams_delta_lcd_device = {
387 .name = "lcd_ams_delta",
391 static struct gpiod_lookup_table ams_delta_lcd_gpio_table = {
393 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_LCD_VBLEN, "vblen", 0),
394 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_LCD_NDISP, "ndisp", 0),
400 * Dynamically allocated GPIO numbers must be obtained fromm GPIO device
401 * before they can be put in the gpio_led table. Before that happens,
402 * initialize the table with invalid GPIO numbers, not 0.
404 static struct gpio_led gpio_leds[] __initdata = {
405 [LATCH1_PIN_LED_CAMERA] = {
408 .default_state = LEDS_GPIO_DEFSTATE_OFF,
409 #ifdef CONFIG_LEDS_TRIGGERS
410 .default_trigger = "ams_delta_camera",
413 [LATCH1_PIN_LED_ADVERT] = {
416 .default_state = LEDS_GPIO_DEFSTATE_OFF,
418 [LATCH1_PIN_LED_MAIL] = {
421 .default_state = LEDS_GPIO_DEFSTATE_OFF,
423 [LATCH1_PIN_LED_HANDSFREE] = {
426 .default_state = LEDS_GPIO_DEFSTATE_OFF,
428 [LATCH1_PIN_LED_VOICEMAIL] = {
431 .default_state = LEDS_GPIO_DEFSTATE_OFF,
433 [LATCH1_PIN_LED_VOICE] = {
436 .default_state = LEDS_GPIO_DEFSTATE_OFF,
440 static const struct gpio_led_platform_data leds_pdata __initconst = {
442 .num_leds = ARRAY_SIZE(gpio_leds),
445 static struct i2c_board_info ams_delta_camera_board_info[] = {
447 I2C_BOARD_INFO("ov6650", 0x60),
451 #ifdef CONFIG_LEDS_TRIGGERS
452 DEFINE_LED_TRIGGER(ams_delta_camera_led_trigger);
454 static int ams_delta_camera_power(struct device *dev, int power)
460 led_trigger_event(ams_delta_camera_led_trigger, LED_FULL);
462 led_trigger_event(ams_delta_camera_led_trigger, LED_OFF);
466 #define ams_delta_camera_power NULL
469 static struct soc_camera_link ams_delta_iclink = {
470 .bus_id = 0, /* OMAP1 SoC camera bus */
472 .board_info = &ams_delta_camera_board_info[0],
473 .module_name = "ov6650",
474 .power = ams_delta_camera_power,
477 static struct platform_device ams_delta_camera_device = {
478 .name = "soc-camera-pdrv",
481 .platform_data = &ams_delta_iclink,
485 static struct omap1_cam_platform_data ams_delta_camera_platform_data = {
486 .camexclk_khz = 12000, /* default 12MHz clock, no extra DPLL */
487 .lclk_khz_max = 1334, /* results in 5fps CIF, 10fps QCIF */
490 static struct platform_device ams_delta_audio_device = {
491 .name = "ams-delta-audio",
495 static struct gpiod_lookup_table ams_delta_audio_gpio_table = {
497 GPIO_LOOKUP(OMAP_GPIO_LABEL, AMS_DELTA_GPIO_PIN_HOOK_SWITCH,
499 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_MODEM_CODEC,
505 static struct platform_device cx20442_codec_device = {
506 .name = "cx20442-codec",
510 static struct resource ams_delta_serio_resources[] = {
512 .flags = IORESOURCE_IRQ,
514 * Initialize IRQ resource with invalid IRQ number.
515 * It will be replaced with dynamically allocated GPIO IRQ
516 * obtained from GPIO chip as soon as the chip is available.
523 static struct platform_device ams_delta_serio_device = {
524 .name = "ams-delta-serio",
525 .id = PLATFORM_DEVID_NONE,
528 * Initialize .platform_data explicitly with NULL to
529 * indicate it is going to be used. It will be replaced
530 * with FIQ buffer address as soon as FIQ is initialized.
532 .platform_data = NULL,
534 .num_resources = ARRAY_SIZE(ams_delta_serio_resources),
535 .resource = ams_delta_serio_resources,
538 static struct regulator_consumer_supply keybrd_pwr_consumers[] = {
540 * Initialize supply .dev_name with NULL. It will be replaced
541 * with serio dev_name() as soon as the serio device is registered.
543 REGULATOR_SUPPLY("vcc", NULL),
546 static struct regulator_init_data keybrd_pwr_initdata = {
548 .valid_ops_mask = REGULATOR_CHANGE_STATUS,
550 .num_consumer_supplies = ARRAY_SIZE(keybrd_pwr_consumers),
551 .consumer_supplies = keybrd_pwr_consumers,
554 static struct fixed_voltage_config keybrd_pwr_config = {
555 .supply_name = "keybrd_pwr",
556 .microvolts = 5000000,
557 .gpio = AMS_DELTA_GPIO_PIN_KEYBRD_PWR,
559 .init_data = &keybrd_pwr_initdata,
562 static struct platform_device keybrd_pwr_device = {
563 .name = "reg-fixed-voltage",
564 .id = PLATFORM_DEVID_AUTO,
566 .platform_data = &keybrd_pwr_config,
570 static struct gpiod_lookup_table keybrd_pwr_gpio_table = {
572 GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_KEYBRD_PWR, NULL,
578 static struct platform_device *ams_delta_devices[] __initdata = {
581 &ams_delta_kp_device,
582 &ams_delta_camera_device,
583 &ams_delta_audio_device,
584 &ams_delta_serio_device,
585 &ams_delta_nand_device,
586 &ams_delta_lcd_device,
587 &cx20442_codec_device,
590 static struct gpiod_lookup_table *ams_delta_gpio_tables[] __initdata = {
591 &ams_delta_audio_gpio_table,
592 &keybrd_pwr_gpio_table,
593 &ams_delta_lcd_gpio_table,
594 &ams_delta_nand_gpio_table,
598 * Some drivers may not use GPIO lookup tables but need to be provided
599 * with GPIO numbers. The same applies to GPIO based IRQ lines - some
600 * drivers may even not use GPIO layer but expect just IRQ numbers.
601 * We could either define GPIO lookup tables then use them on behalf
602 * of those devices, or we can use GPIO driver level methods for
603 * identification of GPIO and IRQ numbers. For the purpose of the latter,
604 * defina a helper function which identifies GPIO chips by their labels.
606 static int gpiochip_match_by_label(struct gpio_chip *chip, void *data)
610 return !strcmp(label, chip->label);
613 static struct gpiod_hog ams_delta_gpio_hogs[] = {
614 GPIO_HOG(LATCH2_LABEL, LATCH2_PIN_KEYBRD_DATAOUT, "keybrd_dataout",
615 GPIO_ACTIVE_HIGH, GPIOD_OUT_LOW),
619 static struct plat_serial8250_port ams_delta_modem_ports[];
622 * Obtain MODEM IRQ GPIO descriptor using its hardware pin
623 * number and assign related IRQ number to the MODEM port.
624 * Keep the GPIO descriptor open so nobody steps in.
626 static void __init modem_assign_irq(struct gpio_chip *chip)
628 struct gpio_desc *gpiod;
630 gpiod = gpiochip_request_own_desc(chip, AMS_DELTA_GPIO_PIN_MODEM_IRQ,
633 pr_err("%s: modem IRQ GPIO request failed (%ld)\n", __func__,
636 gpiod_direction_input(gpiod);
637 ams_delta_modem_ports[0].irq = gpiod_to_irq(gpiod);
642 * The purpose of this function is to take care of proper initialization of
643 * devices and data structures which depend on GPIO lines provided by OMAP GPIO
644 * banks but their drivers don't use GPIO lookup tables or GPIO layer at all.
645 * The function may be called as soon as OMAP GPIO devices are probed.
646 * Since that happens at postcore_initcall, it can be called successfully
647 * from init_machine or later.
648 * Dependent devices may be registered from within this function or later.
650 static void __init omap_gpio_deps_init(void)
652 struct gpio_chip *chip;
654 chip = gpiochip_find(OMAP_GPIO_LABEL, gpiochip_match_by_label);
656 pr_err("%s: OMAP GPIO chip not found\n", __func__);
661 * Start with FIQ initialization as it may have to request
662 * and release successfully each OMAP GPIO pin in turn.
664 ams_delta_init_fiq(chip, &ams_delta_serio_device);
666 modem_assign_irq(chip);
670 * Initialize latch2 pins with values which are safe for dependent on-board
671 * devices or useful for their successull initialization even before GPIO
672 * driver takes control over the latch pins:
673 * - LATCH2_PIN_LCD_VBLEN = 0
674 * - LATCH2_PIN_LCD_NDISP = 0 Keep LCD device powered off before its
675 * driver takes control over it.
676 * - LATCH2_PIN_NAND_NCE = 0
677 * - LATCH2_PIN_NAND_NWP = 0 Keep NAND device down and write-
678 * protected before its driver takes
680 * - LATCH2_PIN_KEYBRD_PWR = 0 Keep keyboard powered off before serio
681 * driver takes control over it.
682 * - LATCH2_PIN_KEYBRD_DATAOUT = 0 Keep low to avoid corruption of first
683 * byte of data received from attached
684 * keyboard when serio device is probed;
685 * the pin is also hogged low by the latch2
686 * GPIO driver as soon as it is ready.
687 * - LATCH2_PIN_MODEM_NRESET = 1 Enable voice MODEM device, allowing for
688 * its successful probe even before a
689 * regulator it depends on, which in turn
690 * takes control over the pin, is set up.
691 * - LATCH2_PIN_MODEM_CODEC = 1 Attach voice MODEM CODEC data port
692 * to the MODEM so the CODEC is under
693 * control even if audio driver doesn't
696 static void __init ams_delta_latch2_init(void)
698 u16 latch2 = 1 << LATCH2_PIN_MODEM_NRESET | 1 << LATCH2_PIN_MODEM_CODEC;
700 __raw_writew(latch2, LATCH2_VIRT);
703 static void __init ams_delta_init(void)
705 /* mux pins for uarts */
706 omap_cfg_reg(UART1_TX);
707 omap_cfg_reg(UART1_RTS);
709 /* parallel camera interface */
710 omap_cfg_reg(H19_1610_CAM_EXCLK);
711 omap_cfg_reg(J15_1610_CAM_LCLK);
712 omap_cfg_reg(L18_1610_CAM_VS);
713 omap_cfg_reg(L15_1610_CAM_HS);
714 omap_cfg_reg(L19_1610_CAM_D0);
715 omap_cfg_reg(K14_1610_CAM_D1);
716 omap_cfg_reg(K15_1610_CAM_D2);
717 omap_cfg_reg(K19_1610_CAM_D3);
718 omap_cfg_reg(K18_1610_CAM_D4);
719 omap_cfg_reg(J14_1610_CAM_D5);
720 omap_cfg_reg(J19_1610_CAM_D6);
721 omap_cfg_reg(J18_1610_CAM_D7);
723 omap_gpio_deps_init();
724 ams_delta_latch2_init();
725 gpiod_add_hogs(ams_delta_gpio_hogs);
728 omap_register_i2c_bus(1, 100, NULL, 0);
730 omap1_usb_init(&ams_delta_usb_config);
731 omap1_set_camera_info(&ams_delta_camera_platform_data);
732 #ifdef CONFIG_LEDS_TRIGGERS
733 led_trigger_register_simple("ams_delta_camera",
734 &ams_delta_camera_led_trigger);
736 platform_add_devices(ams_delta_devices, ARRAY_SIZE(ams_delta_devices));
739 * As soon as regulator consumers have been registered, assign their
740 * dev_names to consumer supply entries of respective regulators.
742 keybrd_pwr_consumers[0].dev_name =
743 dev_name(&ams_delta_serio_device.dev);
746 * Once consumer supply entries are populated with dev_names,
747 * register regulator devices. At this stage only the keyboard
748 * power regulator has its consumer supply table fully populated.
750 platform_device_register(&keybrd_pwr_device);
753 * As soon as GPIO consumers have been registered, assign
754 * their dev_names to respective GPIO lookup tables.
756 ams_delta_audio_gpio_table.dev_id =
757 dev_name(&ams_delta_audio_device.dev);
758 keybrd_pwr_gpio_table.dev_id = dev_name(&keybrd_pwr_device.dev);
759 ams_delta_nand_gpio_table.dev_id = dev_name(&ams_delta_nand_device.dev);
760 ams_delta_lcd_gpio_table.dev_id = dev_name(&ams_delta_lcd_device.dev);
763 * Once GPIO lookup tables are populated with dev_names, register them.
765 gpiod_add_lookup_tables(ams_delta_gpio_tables,
766 ARRAY_SIZE(ams_delta_gpio_tables));
768 omap_writew(omap_readw(ARM_RSTCT1) | 0x0004, ARM_RSTCT1);
770 omapfb_set_lcd_config(&ams_delta_lcd_config);
773 static void modem_pm(struct uart_port *port, unsigned int state, unsigned old)
775 struct modem_private_data *priv = port->private_data;
778 if (IS_ERR(priv->regulator))
785 ret = regulator_enable(priv->regulator);
787 ret = regulator_disable(priv->regulator);
793 "ams_delta modem_pm: failed to %sable regulator: %d\n",
794 state ? "dis" : "en", ret);
797 static struct plat_serial8250_port ams_delta_modem_ports[] = {
799 .membase = IOMEM(MODEM_VIRT),
800 .mapbase = MODEM_PHYS,
801 .irq = -EINVAL, /* changed later */
802 .flags = UPF_BOOT_AUTOCONF,
803 .irqflags = IRQF_TRIGGER_RISING,
806 .uartclk = BASE_BAUD * 16,
808 .private_data = &modem_priv,
813 static struct platform_device ams_delta_modem_device = {
814 .name = "serial8250",
815 .id = PLAT8250_DEV_PLATFORM1,
817 .platform_data = ams_delta_modem_ports,
822 * leds-gpio driver doesn't make use of GPIO lookup tables,
823 * it has to be provided with GPIO numbers over platform data
824 * if GPIO descriptor info can't be obtained from device tree.
825 * We could either define GPIO lookup tables and use them on behalf
826 * of the leds-gpio device, or we can use GPIO driver level methods
827 * for identification of GPIO numbers as long as we don't support
828 * device tree. Let's do the latter.
830 static void __init ams_delta_led_init(struct gpio_chip *chip)
832 struct gpio_desc *gpiod;
835 for (i = LATCH1_PIN_LED_CAMERA; i < LATCH1_PIN_DOCKIT1; i++) {
836 gpiod = gpiochip_request_own_desc(chip, i, NULL);
838 pr_warn("%s: %s GPIO %d request failed (%ld)\n",
839 __func__, LATCH1_LABEL, i, PTR_ERR(gpiod));
843 /* Assign GPIO numbers to LED device. */
844 gpio_leds[i].gpio = desc_to_gpio(gpiod);
846 gpiochip_free_own_desc(gpiod);
849 gpio_led_register_device(PLATFORM_DEVID_NONE, &leds_pdata);
853 * The purpose of this function is to take care of assignment of GPIO numbers
854 * to platform devices which depend on GPIO lines provided by Amstrad Delta
855 * latch1 and/or latch2 GPIO devices but don't use GPIO lookup tables.
856 * The function may be called as soon as latch1/latch2 GPIO devices are
857 * initilized. Since basic-mmio-gpio driver is not registered before
858 * device_initcall, this may happen at erliest during device_initcall_sync.
859 * Dependent devices shouldn't be registered before that, their
860 * registration may be performed from within this function or later.
862 static int __init ams_delta_gpio_init(void)
864 struct gpio_chip *chip;
867 if (!machine_is_ams_delta())
870 chip = gpiochip_find(LATCH1_LABEL, gpiochip_match_by_label);
872 pr_err("%s: latch1 GPIO chip not found\n", __func__);
874 ams_delta_led_init(chip);
876 err = gpio_request_array(latch_gpios, ARRAY_SIZE(latch_gpios));
878 pr_err("Couldn't take over latch1/latch2 GPIO pins\n");
882 device_initcall_sync(ams_delta_gpio_init);
884 static int __init modem_nreset_init(void)
888 err = platform_device_register(&modem_nreset_device);
890 pr_err("Couldn't register the modem regulator device\n");
897 * This function expects MODEM IRQ number already assigned to the port
898 * and fails if it's not.
899 * The MODEM device requires its RESET# pin kept high during probe.
900 * That requirement can be fulfilled in several ways:
901 * - with a descriptor of already functional modem_nreset regulator
902 * assigned to the MODEM private data,
903 * - with the regulator not yet controlled by modem_pm function but
904 * already enabled by default on probe,
905 * - before the modem_nreset regulator is probed, with the pin already
906 * set high explicitly.
907 * The last one is already guaranteed by ams_delta_latch2_init() called
909 * In order to avoid taking over ttyS0 device slot, the MODEM device
910 * should be registered after OMAP serial ports. Since those ports
911 * are registered at arch_initcall, this function can be called safely
912 * at arch_initcall_sync earliest.
914 static int __init ams_delta_modem_init(void)
918 if (!machine_is_ams_delta())
921 if (ams_delta_modem_ports[0].irq < 0)
922 return ams_delta_modem_ports[0].irq;
924 omap_cfg_reg(M14_1510_GPIO2);
926 /* Initialize the modem_nreset regulator consumer before use */
927 modem_priv.regulator = ERR_PTR(-ENODEV);
929 err = platform_device_register(&ams_delta_modem_device);
933 arch_initcall_sync(ams_delta_modem_init);
935 static int __init late_init(void)
939 err = modem_nreset_init();
944 * Once the modem device is registered, the modem_nreset
945 * regulator can be requested on behalf of that device.
947 modem_priv.regulator = regulator_get(&ams_delta_modem_device.dev,
949 if (IS_ERR(modem_priv.regulator)) {
950 err = PTR_ERR(modem_priv.regulator);
956 platform_device_unregister(&ams_delta_modem_device);
960 static void __init ams_delta_init_late(void)
966 static void __init ams_delta_map_io(void)
969 iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc));
972 MACHINE_START(AMS_DELTA, "Amstrad E3 (Delta)")
973 /* Maintainer: Jonathan McDowell <noodles@earth.li> */
974 .atag_offset = 0x100,
975 .map_io = ams_delta_map_io,
976 .init_early = omap1_init_early,
977 .init_irq = omap1_init_irq,
978 .handle_irq = omap1_handle_irq,
979 .init_machine = ams_delta_init,
980 .init_late = ams_delta_init_late,
981 .init_time = omap1_timer_init,
982 .restart = omap1_restart,