// 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/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/property.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 <linux/soc/ti/omap1-mux.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 "hardware.h"
#include "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 0 x01000000
#define LATCH1_VIRT 0 xEA000000
#define MODEM_PHYS 0 x04000000
#define MODEM_VIRT 0 xEB000000
#define LATCH2_PHYS 0 x08000000
#define LATCH2_VIRT 0 xEC000000
static struct map_desc ams_delta_io_desc[] __initdata = {
/* AMS_DELTA_LATCH1 */
{
.virtual = LATCH1_VIRT,
.pfn = __phys_to_pfn(LATCH1_PHYS),
.length = 0 x01000000,
.type = MT_DEVICE
},
/* AMS_DELTA_LATCH2 */
{
.virtual = LATCH2_VIRT,
.pfn = __phys_to_pfn(LATCH2_PHYS),
.length = 0 x01000000,
.type = MT_DEVICE
},
/* AMS_DELTA_MODEM */
{
.virtual = MODEM_VIRT,
.pfn = __phys_to_pfn(MODEM_PHYS),
.length = 0 x01000000,
.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 const struct property_entry latch1_gpio_props[] = {
PROPERTY_ENTRY_STRING("label" , LATCH1_LABEL),
PROPERTY_ENTRY_U32("ngpios" , LATCH1_NGPIO),
{ }
};
static const struct platform_device_info latch1_gpio_devinfo = {
.name = "basic-mmio-gpio" ,
.id = 0 ,
.res = latch1_resources,
.num_res = ARRAY_SIZE(latch1_resources),
.properties = latch1_gpio_props,
};
#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 const struct property_entry latch2_gpio_props[] = {
PROPERTY_ENTRY_STRING("label" , LATCH2_LABEL),
PROPERTY_ENTRY_U32("ngpios" , LATCH2_NGPIO),
{ }
};
static struct platform_device_info latch2_gpio_devinfo = {
.name = "basic-mmio-gpio" ,
.id = 1 ,
.res = latch2_resources,
.num_res = ARRAY_SIZE(latch2_resources),
.properties = latch2_gpio_props,
};
#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,
},
[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 ),
{ },
},
};
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 = {
&ams_delta_kp_device,
&ams_delta_audio_device,
&ams_delta_serio_device,
&ams_delta_nand_device,
&ams_delta_lcd_device,
&cx20442_codec_device,
&modem_nreset_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,
};
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_device *gdev;
struct gpio_chip *chip;
/*
* 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 .
*
* This reference will be leaked but that ' s alright as this device
* never goes down .
*/
gdev = gpio_device_find_by_label(OMAP_GPIO_LABEL);
if (!gdev) {
pr_err("%s: OMAP GPIO device not found\n" , __func__);
return ;
}
chip = gpio_device_get_chip(gdev);
/*
* 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, IOMEM(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);
platform_add_devices(ams_delta_devices, ARRAY_SIZE(ams_delta_devices));
platform_device_register_full(&latch1_gpio_devinfo);
platform_device_register_full(&latch2_gpio_devinfo);
/*
* 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) | 0 x0004, 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 int ams_delta_modem_pm_activate(struct device *dev)
{
modem_priv.regulator = regulator_get(dev, "RESET#" );
if (IS_ERR(modem_priv.regulator))
return -EPROBE_DEFER;
return 0 ;
}
static struct dev_pm_domain ams_delta_modem_pm_domain = {
.activate = ams_delta_modem_pm_activate,
};
static struct platform_device ams_delta_modem_device = {
.name = "serial8250" ,
.id = PLAT8250_DEV_PLATFORM1,
.dev = {
.platform_data = ams_delta_modem_ports,
.pm_domain = &ams_delta_modem_pm_domain,
},
};
/*
* 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 )
{
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);
return platform_device_register(&ams_delta_modem_device);
}
arch_initcall_sync(ams_delta_modem_init);
static void __init ams_delta_map_io(void )
{
omap1_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 = 0 x100,
.map_io = ams_delta_map_io,
.init_early = omap1_init_early,
.init_irq = omap1_init_irq,
.init_machine = ams_delta_init,
.init_late = omap1_init_late,
.init_time = omap1_timer_init,
.restart = omap1_restart,
MACHINE_END
Messung V0.5 in Prozent C=94 H=96 G=94
¤ Dauer der Verarbeitung: 0.14 Sekunden
(vorverarbeitet am 2026-09-28)
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