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OpenCloudOS-Kernel/arch/arm/mach-omap1/board-ams-delta.c

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// SPDX-License-Identifier: GPL-2.0-only
/*
* linux/arch/arm/mach-omap1/board-ams-delta.c
*
* Modified from board-generic.c
*
* Board specific inits for the Amstrad E3 (codename Delta) videophone
*
* Copyright (C) 2006 Jonathan McDowell <noodles@earth.li>
*/
#include <linux/gpio/driver.h>
#include <linux/gpio/machine.h>
#include <linux/gpio/consumer.h>
#include <linux/gpio.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/leds.h>
#include <linux/mtd/nand-gpio.h>
#include <linux/mtd/partitions.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include <linux/regulator/fixed.h>
#include <linux/regulator/machine.h>
#include <linux/serial_8250.h>
#include <linux/export.h>
#include <linux/omapfb.h>
#include <linux/io.h>
#include <linux/platform_data/gpio-omap.h>
#include <asm/serial.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <linux/platform_data/keypad-omap.h>
#include <mach/mux.h>
#include <mach/hardware.h>
#include <mach/usb.h>
#include "ams-delta-fiq.h"
#include "board-ams-delta.h"
#include "iomap.h"
#include "common.h"
static const unsigned int ams_delta_keymap[] = {
KEY(0, 0, KEY_F1), /* Advert */
KEY(0, 3, KEY_COFFEE), /* Games */
KEY(0, 2, KEY_QUESTION), /* Directory */
KEY(2, 3, KEY_CONNECT), /* Internet */
KEY(1, 2, KEY_SHOP), /* Services */
KEY(1, 1, KEY_PHONE), /* VoiceMail */
KEY(0, 1, KEY_DELETE), /* Delete */
KEY(2, 2, KEY_PLAY), /* Play */
KEY(1, 0, KEY_PAGEUP), /* Up */
KEY(1, 3, KEY_PAGEDOWN), /* Down */
KEY(2, 0, KEY_EMAIL), /* ReadEmail */
KEY(2, 1, KEY_STOP), /* Stop */
/* Numeric keypad portion */
KEY(0, 7, KEY_KP1),
KEY(0, 6, KEY_KP2),
KEY(0, 5, KEY_KP3),
KEY(1, 7, KEY_KP4),
KEY(1, 6, KEY_KP5),
KEY(1, 5, KEY_KP6),
KEY(2, 7, KEY_KP7),
KEY(2, 6, KEY_KP8),
KEY(2, 5, KEY_KP9),
KEY(3, 6, KEY_KP0),
KEY(3, 7, KEY_KPASTERISK),
KEY(3, 5, KEY_KPDOT), /* # key */
KEY(7, 2, KEY_NUMLOCK), /* Mute */
KEY(7, 1, KEY_KPMINUS), /* Recall */
KEY(6, 1, KEY_KPPLUS), /* Redial */
KEY(7, 6, KEY_KPSLASH), /* Handsfree */
KEY(6, 0, KEY_ENTER), /* Video */
KEY(7, 4, KEY_CAMERA), /* Photo */
KEY(0, 4, KEY_F2), /* Home */
KEY(1, 4, KEY_F3), /* Office */
KEY(2, 4, KEY_F4), /* Mobile */
KEY(7, 7, KEY_F5), /* SMS */
KEY(7, 5, KEY_F6), /* Email */
/* QWERTY portion of keypad */
KEY(3, 4, KEY_Q),
KEY(3, 3, KEY_W),
KEY(3, 2, KEY_E),
KEY(3, 1, KEY_R),
KEY(3, 0, KEY_T),
KEY(4, 7, KEY_Y),
KEY(4, 6, KEY_U),
KEY(4, 5, KEY_I),
KEY(4, 4, KEY_O),
KEY(4, 3, KEY_P),
KEY(4, 2, KEY_A),
KEY(4, 1, KEY_S),
KEY(4, 0, KEY_D),
KEY(5, 7, KEY_F),
KEY(5, 6, KEY_G),
KEY(5, 5, KEY_H),
KEY(5, 4, KEY_J),
KEY(5, 3, KEY_K),
KEY(5, 2, KEY_L),
KEY(5, 1, KEY_Z),
KEY(5, 0, KEY_X),
KEY(6, 7, KEY_C),
KEY(6, 6, KEY_V),
KEY(6, 5, KEY_B),
KEY(6, 4, KEY_N),
KEY(6, 3, KEY_M),
KEY(6, 2, KEY_SPACE),
KEY(7, 0, KEY_LEFTSHIFT), /* Vol up */
KEY(7, 3, KEY_LEFTCTRL), /* Vol down */
};
#define LATCH1_PHYS 0x01000000
#define LATCH1_VIRT 0xEA000000
#define MODEM_PHYS 0x04000000
#define MODEM_VIRT 0xEB000000
#define LATCH2_PHYS 0x08000000
#define LATCH2_VIRT 0xEC000000
static struct map_desc ams_delta_io_desc[] __initdata = {
/* AMS_DELTA_LATCH1 */
{
.virtual = LATCH1_VIRT,
.pfn = __phys_to_pfn(LATCH1_PHYS),
.length = 0x01000000,
.type = MT_DEVICE
},
/* AMS_DELTA_LATCH2 */
{
.virtual = LATCH2_VIRT,
.pfn = __phys_to_pfn(LATCH2_PHYS),
.length = 0x01000000,
.type = MT_DEVICE
},
/* AMS_DELTA_MODEM */
{
.virtual = MODEM_VIRT,
.pfn = __phys_to_pfn(MODEM_PHYS),
.length = 0x01000000,
.type = MT_DEVICE
}
};
static const struct omap_lcd_config ams_delta_lcd_config __initconst = {
.ctrl_name = "internal",
};
static struct omap_usb_config ams_delta_usb_config __initdata = {
.register_host = 1,
.hmc_mode = 16,
.pins[0] = 2,
};
#define LATCH1_NGPIO 8
static struct resource latch1_resources[] = {
[0] = {
.name = "dat",
.start = LATCH1_PHYS,
.end = LATCH1_PHYS + (LATCH1_NGPIO - 1) / 8,
.flags = IORESOURCE_MEM,
},
};
#define LATCH1_LABEL "latch1"
static struct bgpio_pdata latch1_pdata = {
.label = LATCH1_LABEL,
.base = -1,
.ngpio = LATCH1_NGPIO,
};
static struct platform_device latch1_gpio_device = {
.name = "basic-mmio-gpio",
.id = 0,
.resource = latch1_resources,
.num_resources = ARRAY_SIZE(latch1_resources),
.dev = {
.platform_data = &latch1_pdata,
},
};
#define LATCH1_PIN_LED_CAMERA 0
#define LATCH1_PIN_LED_ADVERT 1
#define LATCH1_PIN_LED_MAIL 2
#define LATCH1_PIN_LED_HANDSFREE 3
#define LATCH1_PIN_LED_VOICEMAIL 4
#define LATCH1_PIN_LED_VOICE 5
#define LATCH1_PIN_DOCKIT1 6
#define LATCH1_PIN_DOCKIT2 7
#define LATCH2_NGPIO 16
static struct resource latch2_resources[] = {
[0] = {
.name = "dat",
.start = LATCH2_PHYS,
.end = LATCH2_PHYS + (LATCH2_NGPIO - 1) / 8,
.flags = IORESOURCE_MEM,
},
};
#define LATCH2_LABEL "latch2"
static struct bgpio_pdata latch2_pdata = {
.label = LATCH2_LABEL,
.base = -1,
.ngpio = LATCH2_NGPIO,
};
static struct platform_device latch2_gpio_device = {
.name = "basic-mmio-gpio",
.id = 1,
.resource = latch2_resources,
.num_resources = ARRAY_SIZE(latch2_resources),
.dev = {
.platform_data = &latch2_pdata,
},
};
#define LATCH2_PIN_LCD_VBLEN 0
#define LATCH2_PIN_LCD_NDISP 1
#define LATCH2_PIN_NAND_NCE 2
#define LATCH2_PIN_NAND_NRE 3
#define LATCH2_PIN_NAND_NWP 4
#define LATCH2_PIN_NAND_NWE 5
#define LATCH2_PIN_NAND_ALE 6
#define LATCH2_PIN_NAND_CLE 7
#define LATCH2_PIN_KEYBRD_PWR 8
#define LATCH2_PIN_KEYBRD_DATAOUT 9
#define LATCH2_PIN_SCARD_RSTIN 10
#define LATCH2_PIN_SCARD_CMDVCC 11
#define LATCH2_PIN_MODEM_NRESET 12
#define LATCH2_PIN_MODEM_CODEC 13
#define LATCH2_PIN_HANDSFREE_MUTE 14
#define LATCH2_PIN_HANDSET_MUTE 15
static struct regulator_consumer_supply modem_nreset_consumers[] = {
REGULATOR_SUPPLY("RESET#", "serial8250.1"),
REGULATOR_SUPPLY("POR", "cx20442-codec"),
};
static struct regulator_init_data modem_nreset_data = {
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
.boot_on = 1,
},
.num_consumer_supplies = ARRAY_SIZE(modem_nreset_consumers),
.consumer_supplies = modem_nreset_consumers,
};
static struct fixed_voltage_config modem_nreset_config = {
.supply_name = "modem_nreset",
.microvolts = 3300000,
.startup_delay = 25000,
.enabled_at_boot = 1,
.init_data = &modem_nreset_data,
};
static struct platform_device modem_nreset_device = {
.name = "reg-fixed-voltage",
.id = -1,
.dev = {
.platform_data = &modem_nreset_config,
},
};
static struct gpiod_lookup_table ams_delta_nreset_gpiod_table = {
.dev_id = "reg-fixed-voltage",
.table = {
GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_MODEM_NRESET,
NULL, GPIO_ACTIVE_HIGH),
{ },
},
};
struct modem_private_data {
struct regulator *regulator;
};
static struct modem_private_data modem_priv;
/*
* Define partitions for flash device
*/
static struct mtd_partition partition_info[] = {
{ .name = "Kernel",
.offset = 0,
.size = 3 * SZ_1M + SZ_512K },
{ .name = "u-boot",
.offset = 3 * SZ_1M + SZ_512K,
.size = SZ_256K },
{ .name = "u-boot params",
.offset = 3 * SZ_1M + SZ_512K + SZ_256K,
.size = SZ_256K },
{ .name = "Amstrad LDR",
.offset = 4 * SZ_1M,
.size = SZ_256K },
{ .name = "File system",
.offset = 4 * SZ_1M + 1 * SZ_256K,
.size = 27 * SZ_1M },
{ .name = "PBL reserved",
.offset = 32 * SZ_1M - 3 * SZ_256K,
.size = 3 * SZ_256K },
};
static struct gpio_nand_platdata nand_platdata = {
.parts = partition_info,
.num_parts = ARRAY_SIZE(partition_info),
};
static struct platform_device ams_delta_nand_device = {
.name = "ams-delta-nand",
.id = -1,
.dev = {
.platform_data = &nand_platdata,
},
};
#define OMAP_GPIO_LABEL "gpio-0-15"
#define OMAP_MPUIO_LABEL "mpuio"
static struct gpiod_lookup_table ams_delta_nand_gpio_table = {
.table = {
GPIO_LOOKUP(OMAP_GPIO_LABEL, AMS_DELTA_GPIO_PIN_NAND_RB, "rdy",
0),
GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NCE, "nce",
GPIO_ACTIVE_LOW),
GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NRE, "nre",
GPIO_ACTIVE_LOW),
GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NWP, "nwp",
GPIO_ACTIVE_LOW),
GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_NWE, "nwe",
GPIO_ACTIVE_LOW),
GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_ALE, "ale", 0),
GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_NAND_CLE, "cle", 0),
GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 0, "data", 0, 0),
GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 1, "data", 1, 0),
GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 2, "data", 2, 0),
GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 3, "data", 3, 0),
GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 4, "data", 4, 0),
GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 5, "data", 5, 0),
GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 6, "data", 6, 0),
GPIO_LOOKUP_IDX(OMAP_MPUIO_LABEL, 7, "data", 7, 0),
{ },
},
};
static struct resource ams_delta_kp_resources[] = {
[0] = {
.start = INT_KEYBOARD,
.end = INT_KEYBOARD,
.flags = IORESOURCE_IRQ,
},
};
static const struct matrix_keymap_data ams_delta_keymap_data = {
.keymap = ams_delta_keymap,
.keymap_size = ARRAY_SIZE(ams_delta_keymap),
};
static struct omap_kp_platform_data ams_delta_kp_data = {
.rows = 8,
.cols = 8,
.keymap_data = &ams_delta_keymap_data,
.delay = 9,
};
static struct platform_device ams_delta_kp_device = {
.name = "omap-keypad",
.id = -1,
.dev = {
.platform_data = &ams_delta_kp_data,
},
.num_resources = ARRAY_SIZE(ams_delta_kp_resources),
.resource = ams_delta_kp_resources,
};
static struct platform_device ams_delta_lcd_device = {
.name = "lcd_ams_delta",
.id = -1,
};
static struct gpiod_lookup_table ams_delta_lcd_gpio_table = {
.table = {
GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_LCD_VBLEN, "vblen", 0),
GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_LCD_NDISP, "ndisp", 0),
{ },
},
};
static struct gpio_led gpio_leds[] __initdata = {
[LATCH1_PIN_LED_CAMERA] = {
.name = "camera",
.default_state = LEDS_GPIO_DEFSTATE_OFF,
#ifdef CONFIG_LEDS_TRIGGERS
.default_trigger = "ams_delta_camera",
#endif
},
[LATCH1_PIN_LED_ADVERT] = {
.name = "advert",
.default_state = LEDS_GPIO_DEFSTATE_OFF,
},
[LATCH1_PIN_LED_MAIL] = {
.name = "email",
.default_state = LEDS_GPIO_DEFSTATE_OFF,
},
[LATCH1_PIN_LED_HANDSFREE] = {
.name = "handsfree",
.default_state = LEDS_GPIO_DEFSTATE_OFF,
},
[LATCH1_PIN_LED_VOICEMAIL] = {
.name = "voicemail",
.default_state = LEDS_GPIO_DEFSTATE_OFF,
},
[LATCH1_PIN_LED_VOICE] = {
.name = "voice",
.default_state = LEDS_GPIO_DEFSTATE_OFF,
},
};
static const struct gpio_led_platform_data leds_pdata __initconst = {
.leds = gpio_leds,
.num_leds = ARRAY_SIZE(gpio_leds),
};
static struct gpiod_lookup_table leds_gpio_table = {
.table = {
GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_CAMERA, NULL,
LATCH1_PIN_LED_CAMERA, 0),
GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_ADVERT, NULL,
LATCH1_PIN_LED_ADVERT, 0),
GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_MAIL, NULL,
LATCH1_PIN_LED_MAIL, 0),
GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_HANDSFREE, NULL,
LATCH1_PIN_LED_HANDSFREE, 0),
GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_VOICEMAIL, NULL,
LATCH1_PIN_LED_VOICEMAIL, 0),
GPIO_LOOKUP_IDX(LATCH1_LABEL, LATCH1_PIN_LED_VOICE, NULL,
LATCH1_PIN_LED_VOICE, 0),
{ },
},
};
#ifdef CONFIG_LEDS_TRIGGERS
DEFINE_LED_TRIGGER(ams_delta_camera_led_trigger);
static int ams_delta_camera_power(struct device *dev, int power)
{
/*
* turn on camera LED
*/
if (power)
led_trigger_event(ams_delta_camera_led_trigger, LED_FULL);
else
led_trigger_event(ams_delta_camera_led_trigger, LED_OFF);
return 0;
}
#else
#define ams_delta_camera_power NULL
#endif
static struct platform_device ams_delta_audio_device = {
.name = "ams-delta-audio",
.id = -1,
};
static struct gpiod_lookup_table ams_delta_audio_gpio_table = {
.table = {
GPIO_LOOKUP(OMAP_GPIO_LABEL, AMS_DELTA_GPIO_PIN_HOOK_SWITCH,
"hook_switch", 0),
GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_MODEM_CODEC,
"modem_codec", 0),
GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_HANDSFREE_MUTE,
"handsfree_mute", 0),
GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_HANDSET_MUTE,
"handset_mute", 0),
{ },
},
};
static struct platform_device cx20442_codec_device = {
.name = "cx20442-codec",
.id = -1,
};
static struct resource ams_delta_serio_resources[] = {
{
.flags = IORESOURCE_IRQ,
/*
* Initialize IRQ resource with invalid IRQ number.
* It will be replaced with dynamically allocated GPIO IRQ
* obtained from GPIO chip as soon as the chip is available.
*/
.start = -EINVAL,
.end = -EINVAL,
},
};
static struct platform_device ams_delta_serio_device = {
.name = "ams-delta-serio",
.id = PLATFORM_DEVID_NONE,
.dev = {
/*
* Initialize .platform_data explicitly with NULL to
* indicate it is going to be used. It will be replaced
* with FIQ buffer address as soon as FIQ is initialized.
*/
.platform_data = NULL,
},
.num_resources = ARRAY_SIZE(ams_delta_serio_resources),
.resource = ams_delta_serio_resources,
};
static struct regulator_consumer_supply keybrd_pwr_consumers[] = {
/*
* Initialize supply .dev_name with NULL. It will be replaced
* with serio dev_name() as soon as the serio device is registered.
*/
REGULATOR_SUPPLY("vcc", NULL),
};
static struct regulator_init_data keybrd_pwr_initdata = {
.constraints = {
.valid_ops_mask = REGULATOR_CHANGE_STATUS,
},
.num_consumer_supplies = ARRAY_SIZE(keybrd_pwr_consumers),
.consumer_supplies = keybrd_pwr_consumers,
};
static struct fixed_voltage_config keybrd_pwr_config = {
.supply_name = "keybrd_pwr",
.microvolts = 5000000,
.init_data = &keybrd_pwr_initdata,
};
static struct platform_device keybrd_pwr_device = {
.name = "reg-fixed-voltage",
.id = PLATFORM_DEVID_AUTO,
.dev = {
.platform_data = &keybrd_pwr_config,
},
};
static struct gpiod_lookup_table keybrd_pwr_gpio_table = {
.table = {
GPIO_LOOKUP(LATCH2_LABEL, LATCH2_PIN_KEYBRD_PWR, NULL,
GPIO_ACTIVE_HIGH),
{ },
},
};
static struct platform_device *ams_delta_devices[] __initdata = {
&latch1_gpio_device,
&latch2_gpio_device,
&ams_delta_kp_device,
&ams_delta_audio_device,
&ams_delta_serio_device,
&ams_delta_nand_device,
&ams_delta_lcd_device,
&cx20442_codec_device,
};
static struct gpiod_lookup_table *ams_delta_gpio_tables[] __initdata = {
&ams_delta_nreset_gpiod_table,
&ams_delta_audio_gpio_table,
&keybrd_pwr_gpio_table,
&ams_delta_lcd_gpio_table,
&ams_delta_nand_gpio_table,
};
/*
* Some drivers may not use GPIO lookup tables but need to be provided
* with GPIO numbers. The same applies to GPIO based IRQ lines - some
* drivers may even not use GPIO layer but expect just IRQ numbers.
* We could either define GPIO lookup tables then use them on behalf
* of those devices, or we can use GPIO driver level methods for
* identification of GPIO and IRQ numbers. For the purpose of the latter,
* defina a helper function which identifies GPIO chips by their labels.
*/
static int gpiochip_match_by_label(struct gpio_chip *chip, void *data)
{
char *label = data;
return !strcmp(label, chip->label);
}
static struct gpiod_hog ams_delta_gpio_hogs[] = {
GPIO_HOG(LATCH2_LABEL, LATCH2_PIN_KEYBRD_DATAOUT, "keybrd_dataout",
GPIO_ACTIVE_HIGH, GPIOD_OUT_LOW),
{},
};
static struct plat_serial8250_port ams_delta_modem_ports[];
/*
* Obtain MODEM IRQ GPIO descriptor using its hardware pin
* number and assign related IRQ number to the MODEM port.
* Keep the GPIO descriptor open so nobody steps in.
*/
static void __init modem_assign_irq(struct gpio_chip *chip)
{
struct gpio_desc *gpiod;
gpiod = gpiochip_request_own_desc(chip, AMS_DELTA_GPIO_PIN_MODEM_IRQ,
"modem_irq", GPIO_ACTIVE_HIGH,
GPIOD_IN);
if (IS_ERR(gpiod)) {
pr_err("%s: modem IRQ GPIO request failed (%ld)\n", __func__,
PTR_ERR(gpiod));
} else {
ams_delta_modem_ports[0].irq = gpiod_to_irq(gpiod);
}
}
/*
* The purpose of this function is to take care of proper initialization of
* devices and data structures which depend on GPIO lines provided by OMAP GPIO
* banks but their drivers don't use GPIO lookup tables or GPIO layer at all.
* The function may be called as soon as OMAP GPIO devices are probed.
* Since that happens at postcore_initcall, it can be called successfully
* from init_machine or later.
* Dependent devices may be registered from within this function or later.
*/
static void __init omap_gpio_deps_init(void)
{
struct gpio_chip *chip;
chip = gpiochip_find(OMAP_GPIO_LABEL, gpiochip_match_by_label);
if (!chip) {
pr_err("%s: OMAP GPIO chip not found\n", __func__);
return;
}
/*
* Start with FIQ initialization as it may have to request
* and release successfully each OMAP GPIO pin in turn.
*/
ams_delta_init_fiq(chip, &ams_delta_serio_device);
modem_assign_irq(chip);
}
/*
* Initialize latch2 pins with values which are safe for dependent on-board
* devices or useful for their successull initialization even before GPIO
* driver takes control over the latch pins:
* - LATCH2_PIN_LCD_VBLEN = 0
* - LATCH2_PIN_LCD_NDISP = 0 Keep LCD device powered off before its
* driver takes control over it.
* - LATCH2_PIN_NAND_NCE = 0
* - LATCH2_PIN_NAND_NWP = 0 Keep NAND device down and write-
* protected before its driver takes
* control over it.
* - LATCH2_PIN_KEYBRD_PWR = 0 Keep keyboard powered off before serio
* driver takes control over it.
* - LATCH2_PIN_KEYBRD_DATAOUT = 0 Keep low to avoid corruption of first
* byte of data received from attached
* keyboard when serio device is probed;
* the pin is also hogged low by the latch2
* GPIO driver as soon as it is ready.
* - LATCH2_PIN_MODEM_NRESET = 1 Enable voice MODEM device, allowing for
* its successful probe even before a
* regulator it depends on, which in turn
* takes control over the pin, is set up.
* - LATCH2_PIN_MODEM_CODEC = 1 Attach voice MODEM CODEC data port
* to the MODEM so the CODEC is under
* control even if audio driver doesn't
* take it over.
*/
static void __init ams_delta_latch2_init(void)
{
u16 latch2 = 1 << LATCH2_PIN_MODEM_NRESET | 1 << LATCH2_PIN_MODEM_CODEC;
__raw_writew(latch2, LATCH2_VIRT);
}
static void __init ams_delta_init(void)
{
struct platform_device *leds_pdev;
/* mux pins for uarts */
omap_cfg_reg(UART1_TX);
omap_cfg_reg(UART1_RTS);
/* parallel camera interface */
omap_cfg_reg(H19_1610_CAM_EXCLK);
omap_cfg_reg(J15_1610_CAM_LCLK);
omap_cfg_reg(L18_1610_CAM_VS);
omap_cfg_reg(L15_1610_CAM_HS);
omap_cfg_reg(L19_1610_CAM_D0);
omap_cfg_reg(K14_1610_CAM_D1);
omap_cfg_reg(K15_1610_CAM_D2);
omap_cfg_reg(K19_1610_CAM_D3);
omap_cfg_reg(K18_1610_CAM_D4);
omap_cfg_reg(J14_1610_CAM_D5);
omap_cfg_reg(J19_1610_CAM_D6);
omap_cfg_reg(J18_1610_CAM_D7);
omap_gpio_deps_init();
ams_delta_latch2_init();
gpiod_add_hogs(ams_delta_gpio_hogs);
omap_serial_init();
omap_register_i2c_bus(1, 100, NULL, 0);
omap1_usb_init(&ams_delta_usb_config);
#ifdef CONFIG_LEDS_TRIGGERS
led_trigger_register_simple("ams_delta_camera",
&ams_delta_camera_led_trigger);
#endif
platform_add_devices(ams_delta_devices, ARRAY_SIZE(ams_delta_devices));
/*
* As soon as regulator consumers have been registered, assign their
* dev_names to consumer supply entries of respective regulators.
*/
keybrd_pwr_consumers[0].dev_name =
dev_name(&ams_delta_serio_device.dev);
/*
* Once consumer supply entries are populated with dev_names,
* register regulator devices. At this stage only the keyboard
* power regulator has its consumer supply table fully populated.
*/
platform_device_register(&keybrd_pwr_device);
/*
* As soon as GPIO consumers have been registered, assign
* their dev_names to respective GPIO lookup tables.
*/
ams_delta_audio_gpio_table.dev_id =
dev_name(&ams_delta_audio_device.dev);
keybrd_pwr_gpio_table.dev_id = dev_name(&keybrd_pwr_device.dev);
ams_delta_nand_gpio_table.dev_id = dev_name(&ams_delta_nand_device.dev);
ams_delta_lcd_gpio_table.dev_id = dev_name(&ams_delta_lcd_device.dev);
/*
* Once GPIO lookup tables are populated with dev_names, register them.
*/
gpiod_add_lookup_tables(ams_delta_gpio_tables,
ARRAY_SIZE(ams_delta_gpio_tables));
leds_pdev = gpio_led_register_device(PLATFORM_DEVID_NONE, &leds_pdata);
if (!IS_ERR_OR_NULL(leds_pdev)) {
leds_gpio_table.dev_id = dev_name(&leds_pdev->dev);
gpiod_add_lookup_table(&leds_gpio_table);
}
omap_writew(omap_readw(ARM_RSTCT1) | 0x0004, ARM_RSTCT1);
omapfb_set_lcd_config(&ams_delta_lcd_config);
}
static void modem_pm(struct uart_port *port, unsigned int state, unsigned old)
{
struct modem_private_data *priv = port->private_data;
int ret;
if (!priv)
return;
if (IS_ERR(priv->regulator))
return;
if (state == old)
return;
if (state == 0)
ret = regulator_enable(priv->regulator);
else if (old == 0)
ret = regulator_disable(priv->regulator);
else
ret = 0;
if (ret)
dev_warn(port->dev,
"ams_delta modem_pm: failed to %sable regulator: %d\n",
state ? "dis" : "en", ret);
}
static struct plat_serial8250_port ams_delta_modem_ports[] = {
{
.membase = IOMEM(MODEM_VIRT),
.mapbase = MODEM_PHYS,
.irq = IRQ_NOTCONNECTED, /* changed later */
.flags = UPF_BOOT_AUTOCONF,
.irqflags = IRQF_TRIGGER_RISING,
.iotype = UPIO_MEM,
.regshift = 1,
.uartclk = BASE_BAUD * 16,
.pm = modem_pm,
.private_data = &modem_priv,
},
{ },
};
static struct platform_device ams_delta_modem_device = {
.name = "serial8250",
.id = PLAT8250_DEV_PLATFORM1,
.dev = {
.platform_data = ams_delta_modem_ports,
},
};
static int __init modem_nreset_init(void)
{
int err;
err = platform_device_register(&modem_nreset_device);
if (err)
pr_err("Couldn't register the modem regulator device\n");
return err;
}
/*
* This function expects MODEM IRQ number already assigned to the port.
* The MODEM device requires its RESET# pin kept high during probe.
* That requirement can be fulfilled in several ways:
* - with a descriptor of already functional modem_nreset regulator
* assigned to the MODEM private data,
* - with the regulator not yet controlled by modem_pm function but
* already enabled by default on probe,
* - before the modem_nreset regulator is probed, with the pin already
* set high explicitly.
* The last one is already guaranteed by ams_delta_latch2_init() called
* from machine_init.
* In order to avoid taking over ttyS0 device slot, the MODEM device
* should be registered after OMAP serial ports. Since those ports
* are registered at arch_initcall, this function can be called safely
* at arch_initcall_sync earliest.
*/
static int __init ams_delta_modem_init(void)
{
int err;
if (!machine_is_ams_delta())
return -ENODEV;
omap_cfg_reg(M14_1510_GPIO2);
/* Initialize the modem_nreset regulator consumer before use */
modem_priv.regulator = ERR_PTR(-ENODEV);
err = platform_device_register(&ams_delta_modem_device);
return err;
}
arch_initcall_sync(ams_delta_modem_init);
static int __init late_init(void)
{
int err;
err = modem_nreset_init();
if (err)
return err;
/*
* Once the modem device is registered, the modem_nreset
* regulator can be requested on behalf of that device.
*/
modem_priv.regulator = regulator_get(&ams_delta_modem_device.dev,
"RESET#");
if (IS_ERR(modem_priv.regulator)) {
err = PTR_ERR(modem_priv.regulator);
goto unregister;
}
return 0;
unregister:
platform_device_unregister(&ams_delta_modem_device);
return err;
}
static void __init ams_delta_init_late(void)
{
omap1_init_late();
late_init();
}
static void __init ams_delta_map_io(void)
{
omap15xx_map_io();
iotable_init(ams_delta_io_desc, ARRAY_SIZE(ams_delta_io_desc));
}
MACHINE_START(AMS_DELTA, "Amstrad E3 (Delta)")
/* Maintainer: Jonathan McDowell <noodles@earth.li> */
.atag_offset = 0x100,
.map_io = ams_delta_map_io,
.init_early = omap1_init_early,
.init_irq = omap1_init_irq,
.handle_irq = omap1_handle_irq,
.init_machine = ams_delta_init,
.init_late = ams_delta_init_late,
.init_time = omap1_timer_init,
.restart = omap1_restart,
MACHINE_END
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