/*
* Hardware definitions for Palm Zire72
*
* Authors:
* Vladimir "Farcaller" Pouzanov <farcaller@gmail.com>
* Sergey Lapin <slapin@ossfans.org>
* Alex Osborne <bobofdoom@gmail.com>
* Jan Herman <2hp@seznam.cz>
*
* Rewrite for mainline:
* Marek Vasut <marek.vasut@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* (find more info at www.hackndev.com)
*
*/
#include <linux/platform_device.h>
#include <linux/sysdev.h>
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/gpio_keys.h>
#include <linux/input.h>
#include <linux/pda_power.h>
#include <linux/pwm_backlight.h>
#include <linux/gpio.h>
#include <linux/wm97xx_batt.h>
#include <linux/power_supply.h>
#include <linux/usb/gpio_vbus.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/pxa27x.h>
#include <mach/audio.h>
#include <mach/palmz72.h>
#include <mach/mmc.h>
#include <mach/pxafb.h>
#include <mach/irda.h>
#include <mach/pxa27x_keypad.h>
#include <mach/udc.h>
#include <mach/palmasoc.h>
#include <mach/pm.h>
#include "generic.h"
#include "devices.h"
/******************************************************************************
* Pin configuration
******************************************************************************/
static unsigned long palmz72_pin_config[] __initdata = {
/* MMC */
GPIO32_MMC_CLK,
GPIO92_MMC_DAT_0,
GPIO109_MMC_DAT_1,
GPIO110_MMC_DAT_2,
GPIO111_MMC_DAT_3,
GPIO112_MMC_CMD,
GPIO14_GPIO, /* SD detect */
GPIO115_GPIO, /* SD RO */
GPIO98_GPIO, /* SD power */
/* AC97 */
GPIO28_AC97_BITCLK,
GPIO29_AC97_SDATA_IN_0,
GPIO30_AC97_SDATA_OUT,
GPIO31_AC97_SYNC,
GPIO89_AC97_SYSCLK,
GPIO113_AC97_nRESET,
/* IrDA */
GPIO49_GPIO, /* ir disable */
GPIO46_FICP_RXD,
GPIO47_FICP_TXD,
/* PWM */
GPIO16_PWM0_OUT,
/* USB */
GPIO15_GPIO, /* usb detect */
GPIO95_GPIO, /* usb pullup */
/* Matrix keypad */
GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
GPIO103_KP_MKOUT_0,
GPIO104_KP_MKOUT_1,
GPIO105_KP_MKOUT_2,
/* LCD */
GPIOxx_LCD_TFT_16BPP,
GPIO20_GPIO, /* bl power */
GPIO21_GPIO, /* LCD border switch */
GPIO22_GPIO, /* LCD border color */
GPIO96_GPIO, /* lcd power */
/* Misc. */
GPIO0_GPIO | WAKEUP_ON_LEVEL_HIGH, /* power detect */
GPIO88_GPIO, /* green led */
GPIO27_GPIO, /* WM9712 IRQ */
};
/******************************************************************************
* SD/MMC card controller
******************************************************************************/
/* SD_POWER is not actually power, but it is more like chip
* select, i.e. it is inverted */
static struct pxamci_platform_data palmz72_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.gpio_card_detect = GPIO_NR_PALMZ72_SD_DETECT_N,
.gpio_card_ro = GPIO_NR_PALMZ72_SD_RO,
.gpio_power = GPIO_NR_PALMZ72_SD_POWER_N,
.gpio_power_invert = 1,
};
/******************************************************************************
* GPIO keyboard
******************************************************************************/
static unsigned int palmz72_matrix_keys[] = {
KEY(0, 0, KEY_POWER),
KEY(0, 1, KEY_F1),
KEY(0, 2, KEY_ENTER),
KEY(1, 0, KEY_F2),
KEY(1, 1, KEY_F3),
KEY(1, 2, KEY_F4),
KEY(2, 0, KEY_UP),
KEY(2, 2, KEY_DOWN),
KEY(3, 0, KEY_RIGHT),
KEY(3, 2, KEY_LEFT),
};
static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = {
.matrix_key_rows = 4,
.matrix_key_cols = 3,
.matrix_key_map = palmz72_matrix_keys,
.matrix_key_map_size = ARRAY_SIZE(palmz72_matrix_keys),
.debounce_interval = 30,
};
/******************************************************************************
* Backlight
******************************************************************************/
static int palmz72_backlight_init(struct device *dev)
{
int ret;
ret = gpio_request(GPIO_NR_PALMZ72_BL_POWER, "BL POWER");
if (ret)
goto err;
ret = gpio_direction_output(GPIO_NR_PALMZ72_BL_POWER, 0);
if (ret)
goto err2;
ret = gpio_request(GPIO_NR_PALMZ72_LCD_POWER, "LCD POWER");
if (ret)
goto err2;
ret = gpio_direction_output(GPIO_NR_PALMZ72_LCD_POWER, 0);
if (ret)
goto err3;
return 0;
err3:
gpio_free(GPIO_NR_PALMZ72_LCD_POWER);
err2:
gpio_free(GPIO_NR_PALMZ72_BL_POWER);
err:
return ret;
}
static int palmz72_backlight_notify(struct device *dev, int brightness)
{
gpio_set_value(GPIO_NR_PALMZ72_BL_POWER, brightness);
gpio_set_value(GPIO_NR_PALMZ72_LCD_POWER, brightness);
return brightness;
}
static void palmz72_backlight_exit(struct device *dev)
{
gpio_free(GPIO_NR_PALMZ72_BL_POWER);
gpio_free(GPIO_NR_PALMZ72_LCD_POWER);
}
static struct platform_pwm_backlight_data palmz72_backlight_data = {
.pwm_id = 0,
.max_brightness = PALMZ72_MAX_INTENSITY,
.dft_brightness = PALMZ72_MAX_INTENSITY,
.pwm_period_ns = PALMZ72_PERIOD_NS,
.init = palmz72_backlight_init,
.notify = palmz72_backlight_notify,
.exit = palmz72_backlight_exit,
};
static struct platform_device palmz72_backlight = {
.name = "pwm-backlight",
.dev = {
.parent = &pxa27x_device_pwm0.dev,
.platform_data = &palmz72_backlight_data,
},
};
/******************************************************************************
* IrDA
******************************************************************************/
static struct pxaficp_platform_data palmz72_ficp_platform_data = {
.gpio_pwdown = GPIO_NR_PALMZ72_IR_DISABLE,
.transceiver_cap = IR_SIRMODE | IR_OFF,
};
/******************************************************************************
* LEDs
******************************************************************************/
static struct gpio_led gpio_leds[] = {
{
.name = "palmz72:green:led",
.default_trigger = "none",
.gpio = GPIO_NR_PALMZ72_LED_GREEN,
},
};
static struct gpio_led_platform_data gpio_led_info = {
.leds = gpio_leds,
.num_leds = ARRAY_SIZE(gpio_leds),
};
static struct platform_device palmz72_leds = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &gpio_led_info,
}
};
/******************************************************************************
* UDC
******************************************************************************/
static struct gpio_vbus_mach_info palmz72_udc_info = {
.gpio_vbus = GPIO_NR_PALMZ72_USB_DETECT_N,
.gpio_pullup = GPIO_NR_PALMZ72_USB_PULLUP,
};
static struct platform_device palmz72_gpio_vbus = {
.name = "gpio-vbus",
.id = -1,
.dev = {
.platform_data = &palmz72_udc_info,
},
};
/******************************************************************************
* Power supply
******************************************************************************/
static int power_supply_init(struct device *dev)
{
int ret;
ret = gpio_request(GPIO_NR_PALMZ72_POWER_DETECT, "CABLE_STATE_AC");
if (ret)
goto err1;
ret = gpio_direction_input(GPIO_NR_PALMZ72_POWER_DETECT);
if (ret)
goto err2;
ret = gpio_request(GPIO_NR_PALMZ72_USB_DETECT_N, "CABLE_STATE_USB");
if (ret)
goto err2;
ret = gpio_direction_input(GPIO_NR_PALMZ72_USB_DETECT_N);
if (ret)
goto err3;
return 0;
err3:
gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N);
err2:
gpio_free(GPIO_NR_PALMZ72_POWER_DETECT);
err1:
return ret;
}
static int palmz72_is_ac_online(void)
{
return gpio_get_value(GPIO_NR_PALMZ72_POWER_DETECT);
}
static int palmz72_is_usb_online(void)
{
return !gpio_get_value(GPIO_NR_PALMZ72_USB_DETECT_N);
}
static void power_supply_exit(struct device *dev)
{
gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N);
gpio_free(GPIO_NR_PALMZ72_POWER_DETECT);
}
static char *palmz72_supplicants[] = {
"main-battery",
};
static struct pda_power_pdata power_supply_info = {
.init = power_supply_init,
.is_ac_online = palmz72_is_ac_online,
.is_usb_online = palmz72_is_usb_online,
.exit = power_supply_exit,
.supplied_to = palmz72_supplicants,
.num_supplicants = ARRAY_SIZE(palmz72_supplicants),
};
static struct platform_device power_supply = {
.name = "pda-power",
.id = -1,
.dev = {
.platform_data = &power_supply_info,
},
};
/******************************************************************************
* WM97xx battery
******************************************************************************/
static struct wm97xx_batt_info wm97xx_batt_pdata = {
.batt_aux = WM97XX_AUX_ID3,
.temp_aux = WM97XX_AUX_ID2,
.charge_gpio = -1,
.max_voltage = PALMZ72_BAT_MAX_VOLTAGE,
.min_voltage = PALMZ72_BAT_MIN_VOLTAGE,
.batt_mult = 1000,
.batt_div = 414,
.temp_mult = 1,
.temp_div = 1,
.batt_tech = POWER_SUPPLY_TECHNOLOGY_LIPO,
.batt_name = "main-batt",
};
/******************************************************************************
* aSoC audio
******************************************************************************/
static struct platform_device palmz72_asoc = {
.name = "palm27x-asoc",
.id = -1,
};
/******************************************************************************
* Framebuffer
******************************************************************************/
static struct pxafb_mode_info palmz72_lcd_modes[] = {
{
.pixclock = 115384,
.xres = 320,
.yres = 320,
.bpp = 16,
.left_margin = 27,
.right_margin = 7,
.upper_margin = 7,
.lower_margin = 8,
.hsync_len = 6,
.vsync_len = 1,
},
};
static struct pxafb_mach_info palmz72_lcd_screen = {
.modes = palmz72_lcd_modes,
.num_modes = ARRAY_SIZE(palmz72_lcd_modes),
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
};
#ifdef CONFIG_PM
/* We have some black magic here
* PalmOS ROM on recover expects special struct physical address
* to be transferred via PSPR. Using this struct PalmOS restores
* its state after sleep. As for Linux, we need to setup it the
* same way. More than that, PalmOS ROM changes some values in memory.
* For now only one location is found, which needs special treatment.
* Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people
* for reading backtraces for me :)
*/
#define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050)
static struct palmz72_resume_info palmz72_resume_info = {
.magic0 = 0xb4e6,
.magic1 = 1,
/* reset state, MMU off etc */
.arm_control = 0,
.aux_control = 0,
.ttb = 0,
.domain_access = 0,
.process_id = 0,
};
static unsigned long store_ptr;
/* sys_device for Palm Zire 72 PM */
static int palmz72_pm_suspend(struct sys_device *dev, pm_message_t msg)
{
/* setup the resume_info struct for the original bootloader */
palmz72_resume_info.resume_addr = (u32) pxa_cpu_resume;
/* Storing memory touched by ROM */
store_ptr = *PALMZ72_SAVE_DWORD;
/* Setting PSPR to a proper value */
PSPR = virt_to_phys(&palmz72_resume_info);
return 0;
}
static int palmz72_pm_resume(struct sys_device *dev)
{
*PALMZ72_SAVE_DWORD = store_ptr;
return 0;
}
static struct sysdev_class palmz72_pm_sysclass = {
.name = "palmz72_pm",
.suspend = palmz72_pm_suspend,
.resume = palmz72_pm_resume,
};
static struct sys_device palmz72_pm_device = {
.cls = &palmz72_pm_sysclass,
};
static int __init palmz72_pm_init(void)
{
int ret = -ENODEV;
if (machine_is_palmz72()) {
ret = sysdev_class_register(&palmz72_pm_sysclass);
if (ret == 0)
ret = sysdev_register(&palmz72_pm_device);
}
return ret;
}
device_initcall(palmz72_pm_init);
#endif
/******************************************************************************
* Machine init
******************************************************************************/
static struct platform_device *devices[] __initdata = {
&palmz72_backlight,
&palmz72_leds,
&palmz72_asoc,
&power_supply,
&palmz72_gpio_vbus,
};
/* setup udc GPIOs initial state */
static void __init palmz72_udc_init(void)
{
if (!gpio_request(GPIO_NR_PALMZ72_USB_PULLUP, "USB Pullup")) {
gpio_direction_output(GPIO_NR_PALMZ72_USB_PULLUP, 0);
gpio_free(GPIO_NR_PALMZ72_USB_PULLUP);
}
}
static void __init palmz72_init(void)
{
pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));
pxa_set_ffuart_info(NULL);
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
set_pxa_fb_info(&palmz72_lcd_screen);
pxa_set_mci_info(&palmz72_mci_platform_data);
palmz72_udc_init();
pxa_set_ac97_info(NULL);
pxa_set_ficp_info(&palmz72_ficp_platform_data);
pxa_set_keypad_info(&palmz72_keypad_platform_data);
wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
platform_add_devices(devices, ARRAY_SIZE(devices));
}
MACHINE_START(PALMZ72, "Palm Zire72")
.phys_io = 0x40000000,
.io_pg_offst = io_p2v(0x40000000),
.boot_params = 0xa0000100,
.map_io = pxa_map_io,
.init_irq = pxa27x_init_irq,
.timer = &pxa_timer,
.init_machine = palmz72_init
MACHINE_END
