mirror of https://github.com/Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
915 lines
24 KiB
915 lines
24 KiB
// 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 <[email protected]> |
|
*/ |
|
#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 <[email protected]> */ |
|
.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
|
|
|