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linux/arch/arm/mach-pxa/palmte2.c
Marek Vasut 8c8aa5fa30 [ARM] pxa: PalmTE2 support for battery, UDC, IrDA and backlight 
Signed-off-by: Marek Vasut <marek.vasut@gmail.com>
Signed-off-by: Eric Miao <eric.miao@marvell.com>
2009-04-04 10:26:33 +08:00

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/*
* Hardware definitions for Palm Tungsten|E2
*
* Author:
* Carlos Eduardo Medaglia Dyonisio <cadu@nerdfeliz.com>
*
* 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/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 <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/audio.h>
#include <mach/palmte2.h>
#include <mach/mmc.h>
#include <mach/pxafb.h>
#include <mach/mfp-pxa25x.h>
#include <mach/irda.h>
#include <mach/udc.h>
#include "generic.h"
#include "devices.h"
/******************************************************************************
* Pin configuration
******************************************************************************/
static unsigned long palmte2_pin_config[] __initdata = {
/* MMC */
GPIO6_MMC_CLK,
GPIO8_MMC_CS0,
GPIO10_GPIO, /* SD detect */
GPIO55_GPIO, /* SD power */
GPIO51_GPIO, /* SD r/o switch */
/* AC97 */
GPIO28_AC97_BITCLK,
GPIO29_AC97_SDATA_IN_0,
GPIO30_AC97_SDATA_OUT,
GPIO31_AC97_SYNC,
/* PWM */
GPIO16_PWM0_OUT,
/* USB */
GPIO15_GPIO, /* usb detect */
GPIO53_GPIO, /* usb power */
/* IrDA */
GPIO48_GPIO, /* ir disable */
GPIO46_FICP_RXD,
GPIO47_FICP_TXD,
/* LCD */
GPIO58_LCD_LDD_0,
GPIO59_LCD_LDD_1,
GPIO60_LCD_LDD_2,
GPIO61_LCD_LDD_3,
GPIO62_LCD_LDD_4,
GPIO63_LCD_LDD_5,
GPIO64_LCD_LDD_6,
GPIO65_LCD_LDD_7,
GPIO66_LCD_LDD_8,
GPIO67_LCD_LDD_9,
GPIO68_LCD_LDD_10,
GPIO69_LCD_LDD_11,
GPIO70_LCD_LDD_12,
GPIO71_LCD_LDD_13,
GPIO72_LCD_LDD_14,
GPIO73_LCD_LDD_15,
GPIO74_LCD_FCLK,
GPIO75_LCD_LCLK,
GPIO76_LCD_PCLK,
GPIO77_LCD_BIAS,
/* GPIO KEYS */
GPIO5_GPIO, /* notes */
GPIO7_GPIO, /* tasks */
GPIO11_GPIO, /* calendar */
GPIO13_GPIO, /* contacts */
GPIO14_GPIO, /* center */
GPIO19_GPIO, /* left */
GPIO20_GPIO, /* right */
GPIO21_GPIO, /* down */
GPIO22_GPIO, /* up */
/* MISC */
GPIO1_RST, /* reset */
GPIO4_GPIO, /* Hotsync button */
GPIO9_GPIO, /* power detect */
GPIO37_GPIO, /* LCD power */
GPIO56_GPIO, /* Backlight power */
};
/******************************************************************************
* SD/MMC card controller
******************************************************************************/
static int palmte2_mci_init(struct device *dev,
irq_handler_t palmte2_detect_int, void *data)
{
int err = 0;
/* Setup an interrupt for detecting card insert/remove events */
err = gpio_request(GPIO_NR_PALMTE2_SD_DETECT_N, "SD IRQ");
if (err)
goto err;
err = gpio_direction_input(GPIO_NR_PALMTE2_SD_DETECT_N);
if (err)
goto err2;
err = request_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N),
palmte2_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM |
IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
"SD/MMC card detect", data);
if (err) {
printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n",
__func__);
goto err2;
}
err = gpio_request(GPIO_NR_PALMTE2_SD_POWER, "SD_POWER");
if (err)
goto err3;
err = gpio_direction_output(GPIO_NR_PALMTE2_SD_POWER, 0);
if (err)
goto err4;
err = gpio_request(GPIO_NR_PALMTE2_SD_READONLY, "SD_READONLY");
if (err)
goto err4;
err = gpio_direction_input(GPIO_NR_PALMTE2_SD_READONLY);
if (err)
goto err5;
printk(KERN_DEBUG "%s: irq registered\n", __func__);
return 0;
err5:
gpio_free(GPIO_NR_PALMTE2_SD_READONLY);
err4:
gpio_free(GPIO_NR_PALMTE2_SD_POWER);
err3:
free_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N), data);
err2:
gpio_free(GPIO_NR_PALMTE2_SD_DETECT_N);
err:
return err;
}
static void palmte2_mci_exit(struct device *dev, void *data)
{
gpio_free(GPIO_NR_PALMTE2_SD_READONLY);
gpio_free(GPIO_NR_PALMTE2_SD_POWER);
free_irq(gpio_to_irq(GPIO_NR_PALMTE2_SD_DETECT_N), data);
gpio_free(GPIO_NR_PALMTE2_SD_DETECT_N);
}
static void palmte2_mci_power(struct device *dev, unsigned int vdd)
{
struct pxamci_platform_data *p_d = dev->platform_data;
gpio_set_value(GPIO_NR_PALMTE2_SD_POWER, p_d->ocr_mask & (1 << vdd));
}
static int palmte2_mci_get_ro(struct device *dev)
{
return gpio_get_value(GPIO_NR_PALMTE2_SD_READONLY);
}
static struct pxamci_platform_data palmte2_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.setpower = palmte2_mci_power,
.get_ro = palmte2_mci_get_ro,
.init = palmte2_mci_init,
.exit = palmte2_mci_exit,
};
/******************************************************************************
* GPIO keys
******************************************************************************/
static struct gpio_keys_button palmte2_pxa_buttons[] = {
{KEY_F1, GPIO_NR_PALMTE2_KEY_CONTACTS, 1, "Contacts" },
{KEY_F2, GPIO_NR_PALMTE2_KEY_CALENDAR, 1, "Calendar" },
{KEY_F3, GPIO_NR_PALMTE2_KEY_TASKS, 1, "Tasks" },
{KEY_F4, GPIO_NR_PALMTE2_KEY_NOTES, 1, "Notes" },
{KEY_ENTER, GPIO_NR_PALMTE2_KEY_CENTER, 1, "Center" },
{KEY_LEFT, GPIO_NR_PALMTE2_KEY_LEFT, 1, "Left" },
{KEY_RIGHT, GPIO_NR_PALMTE2_KEY_RIGHT, 1, "Right" },
{KEY_DOWN, GPIO_NR_PALMTE2_KEY_DOWN, 1, "Down" },
{KEY_UP, GPIO_NR_PALMTE2_KEY_UP, 1, "Up" },
};
static struct gpio_keys_platform_data palmte2_pxa_keys_data = {
.buttons = palmte2_pxa_buttons,
.nbuttons = ARRAY_SIZE(palmte2_pxa_buttons),
};
static struct platform_device palmte2_pxa_keys = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &palmte2_pxa_keys_data,
},
};
/******************************************************************************
* Backlight
******************************************************************************/
static int palmte2_backlight_init(struct device *dev)
{
int ret;
ret = gpio_request(GPIO_NR_PALMTE2_BL_POWER, "BL POWER");
if (ret)
goto err;
ret = gpio_direction_output(GPIO_NR_PALMTE2_BL_POWER, 0);
if (ret)
goto err2;
ret = gpio_request(GPIO_NR_PALMTE2_LCD_POWER, "LCD POWER");
if (ret)
goto err2;
ret = gpio_direction_output(GPIO_NR_PALMTE2_LCD_POWER, 0);
if (ret)
goto err3;
return 0;
err3:
gpio_free(GPIO_NR_PALMTE2_LCD_POWER);
err2:
gpio_free(GPIO_NR_PALMTE2_BL_POWER);
err:
return ret;
}
static int palmte2_backlight_notify(int brightness)
{
gpio_set_value(GPIO_NR_PALMTE2_BL_POWER, brightness);
gpio_set_value(GPIO_NR_PALMTE2_LCD_POWER, brightness);
return brightness;
}
static void palmte2_backlight_exit(struct device *dev)
{
gpio_free(GPIO_NR_PALMTE2_BL_POWER);
gpio_free(GPIO_NR_PALMTE2_LCD_POWER);
}
static struct platform_pwm_backlight_data palmte2_backlight_data = {
.pwm_id = 0,
.max_brightness = PALMTE2_MAX_INTENSITY,
.dft_brightness = PALMTE2_MAX_INTENSITY,
.pwm_period_ns = PALMTE2_PERIOD_NS,
.init = palmte2_backlight_init,
.notify = palmte2_backlight_notify,
.exit = palmte2_backlight_exit,
};
static struct platform_device palmte2_backlight = {
.name = "pwm-backlight",
.dev = {
.parent = &pxa25x_device_pwm0.dev,
.platform_data = &palmte2_backlight_data,
},
};
/******************************************************************************
* IrDA
******************************************************************************/
static int palmte2_irda_startup(struct device *dev)
{
int err;
err = gpio_request(GPIO_NR_PALMTE2_IR_DISABLE, "IR DISABLE");
if (err)
goto err;
err = gpio_direction_output(GPIO_NR_PALMTE2_IR_DISABLE, 1);
if (err)
gpio_free(GPIO_NR_PALMTE2_IR_DISABLE);
err:
return err;
}
static void palmte2_irda_shutdown(struct device *dev)
{
gpio_free(GPIO_NR_PALMTE2_IR_DISABLE);
}
static void palmte2_irda_transceiver_mode(struct device *dev, int mode)
{
gpio_set_value(GPIO_NR_PALMTE2_IR_DISABLE, mode & IR_OFF);
pxa2xx_transceiver_mode(dev, mode);
}
static struct pxaficp_platform_data palmte2_ficp_platform_data = {
.startup = palmte2_irda_startup,
.shutdown = palmte2_irda_shutdown,
.transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
.transceiver_mode = palmte2_irda_transceiver_mode,
};
/******************************************************************************
* UDC
******************************************************************************/
static struct pxa2xx_udc_mach_info palmte2_udc_info __initdata = {
.gpio_vbus = GPIO_NR_PALMTE2_USB_DETECT_N,
.gpio_vbus_inverted = 1,
.gpio_pullup = GPIO_NR_PALMTE2_USB_PULLUP,
.gpio_pullup_inverted = 0,
};
/******************************************************************************
* Power supply
******************************************************************************/
static int power_supply_init(struct device *dev)
{
int ret;
ret = gpio_request(GPIO_NR_PALMTE2_POWER_DETECT, "CABLE_STATE_AC");
if (ret)
goto err1;
ret = gpio_direction_input(GPIO_NR_PALMTE2_POWER_DETECT);
if (ret)
goto err2;
return 0;
err2:
gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
err1:
return ret;
}
static int palmte2_is_ac_online(void)
{
return gpio_get_value(GPIO_NR_PALMTE2_POWER_DETECT);
}
static void power_supply_exit(struct device *dev)
{
gpio_free(GPIO_NR_PALMTE2_POWER_DETECT);
}
static char *palmte2_supplicants[] = {
"main-battery",
};
static struct pda_power_pdata power_supply_info = {
.init = power_supply_init,
.is_ac_online = palmte2_is_ac_online,
.exit = power_supply_exit,
.supplied_to = palmte2_supplicants,
.num_supplicants = ARRAY_SIZE(palmte2_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 = PALMTE2_BAT_MAX_VOLTAGE,
.min_voltage = PALMTE2_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",
};
/******************************************************************************
* Framebuffer
******************************************************************************/
static struct pxafb_mode_info palmte2_lcd_modes[] = {
{
.pixclock = 77757,
.xres = 320,
.yres = 320,
.bpp = 16,
.left_margin = 28,
.right_margin = 7,
.upper_margin = 7,
.lower_margin = 5,
.hsync_len = 4,
.vsync_len = 1,
},
};
static struct pxafb_mach_info palmte2_lcd_screen = {
.modes = palmte2_lcd_modes,
.num_modes = ARRAY_SIZE(palmte2_lcd_modes),
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
};
/******************************************************************************
* Machine init
******************************************************************************/
static struct platform_device *devices[] __initdata = {
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
&palmte2_pxa_keys,
#endif
&palmte2_backlight,
&power_supply,
};
/* setup udc GPIOs initial state */
static void __init palmte2_udc_init(void)
{
if (!gpio_request(GPIO_NR_PALMTE2_USB_PULLUP, "UDC Vbus")) {
gpio_direction_output(GPIO_NR_PALMTE2_USB_PULLUP, 1);
gpio_free(GPIO_NR_PALMTE2_USB_PULLUP);
}
}
static void __init palmte2_init(void)
{
pxa2xx_mfp_config(ARRAY_AND_SIZE(palmte2_pin_config));
set_pxa_fb_info(&palmte2_lcd_screen);
pxa_set_mci_info(&palmte2_mci_platform_data);
palmte2_udc_init();
pxa_set_udc_info(&palmte2_udc_info);
pxa_set_ac97_info(NULL);
pxa_set_ficp_info(&palmte2_ficp_platform_data);
wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
platform_add_devices(devices, ARRAY_SIZE(devices));
}
MACHINE_START(PALMTE2, "Palm Tungsten|E2")
.phys_io = 0x40000000,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.boot_params = 0xa0000100,
.map_io = pxa_map_io,
.init_irq = pxa25x_init_irq,
.timer = &pxa_timer,
.init_machine = palmte2_init
MACHINE_END
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