/*
* Hardware definitions for PalmTX
*
* Author: Marek Vasut <marek.vasut@gmail.com>
*
* Based on work of:
* Alex Osborne <ato@meshy.org>
* Cristiano P. <cristianop@users.sourceforge.net>
* Jan Herman <2hp@seznam.cz>
* Michal Hrusecky
*
* 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/pxa27x.h>
#include <mach/audio.h>
#include <mach/palmtx.h>
#include <mach/mmc.h>
#include <mach/pxafb.h>
#include <mach/irda.h>
#include <mach/pxa27x_keypad.h>
#include <mach/udc.h>
#include "generic.h"
#include "devices.h"
/******************************************************************************
* Pin configuration
******************************************************************************/
static unsigned long palmtx_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 */
GPIO114_GPIO, /* SD power */
GPIO115_GPIO, /* SD r/o switch */
/* AC97 */
GPIO28_AC97_BITCLK,
GPIO29_AC97_SDATA_IN_0,
GPIO30_AC97_SDATA_OUT,
GPIO31_AC97_SYNC,
GPIO95_AC97_nRESET,
/* IrDA */
GPIO40_GPIO, /* ir disable */
GPIO46_FICP_RXD,
GPIO47_FICP_TXD,
/* PWM */
GPIO16_PWM0_OUT,
/* USB */
GPIO13_GPIO, /* usb detect */
GPIO93_GPIO, /* usb power */
/* PCMCIA */
GPIO48_nPOE,
GPIO49_nPWE,
GPIO50_nPIOR,
GPIO51_nPIOW,
GPIO85_nPCE_1,
GPIO54_nPCE_2,
GPIO79_PSKTSEL,
GPIO55_nPREG,
GPIO56_nPWAIT,
GPIO57_nIOIS16,
GPIO94_GPIO, /* wifi power 1 */
GPIO108_GPIO, /* wifi power 2 */
GPIO116_GPIO, /* wifi ready */
/* 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 */
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,
/* MISC. */
GPIO10_GPIO, /* hotsync button */
GPIO12_GPIO, /* power detect */
GPIO107_GPIO, /* earphone detect */
};
/******************************************************************************
* SD/MMC card controller
******************************************************************************/
static int palmtx_mci_init(struct device *dev, irq_handler_t palmtx_detect_int,
void *data)
{
int err = 0;
/* Setup an interrupt for detecting card insert/remove events */
err = gpio_request(GPIO_NR_PALMTX_SD_DETECT_N, "SD IRQ");
if (err)
goto err;
err = gpio_direction_input(GPIO_NR_PALMTX_SD_DETECT_N);
if (err)
goto err2;
err = request_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N),
palmtx_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_PALMTX_SD_POWER, "SD_POWER");
if (err)
goto err3;
err = gpio_direction_output(GPIO_NR_PALMTX_SD_POWER, 0);
if (err)
goto err4;
err = gpio_request(GPIO_NR_PALMTX_SD_READONLY, "SD_READONLY");
if (err)
goto err4;
err = gpio_direction_input(GPIO_NR_PALMTX_SD_READONLY);
if (err)
goto err5;
printk(KERN_DEBUG "%s: irq registered\n", __func__);
return 0;
err5:
gpio_free(GPIO_NR_PALMTX_SD_READONLY);
err4:
gpio_free(GPIO_NR_PALMTX_SD_POWER);
err3:
free_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N), data);
err2:
gpio_free(GPIO_NR_PALMTX_SD_DETECT_N);
err:
return err;
}
static void palmtx_mci_exit(struct device *dev, void *data)
{
gpio_free(GPIO_NR_PALMTX_SD_READONLY);
gpio_free(GPIO_NR_PALMTX_SD_POWER);
free_irq(gpio_to_irq(GPIO_NR_PALMTX_SD_DETECT_N), data);
gpio_free(GPIO_NR_PALMTX_SD_DETECT_N);
}
static void palmtx_mci_power(struct device *dev, unsigned int vdd)
{
struct pxamci_platform_data *p_d = dev->platform_data;
gpio_set_value(GPIO_NR_PALMTX_SD_POWER, p_d->ocr_mask & (1 << vdd));
}
static int palmtx_mci_get_ro(struct device *dev)
{
return gpio_get_value(GPIO_NR_PALMTX_SD_READONLY);
}
static struct pxamci_platform_data palmtx_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.setpower = palmtx_mci_power,
.get_ro = palmtx_mci_get_ro,
.init = palmtx_mci_init,
.exit = palmtx_mci_exit,
};
/******************************************************************************
* GPIO keyboard
******************************************************************************/
static unsigned int palmtx_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 palmtx_keypad_platform_data = {
.matrix_key_rows = 4,
.matrix_key_cols = 3,
.matrix_key_map = palmtx_matrix_keys,
.matrix_key_map_size = ARRAY_SIZE(palmtx_matrix_keys),
.debounce_interval = 30,
};
/******************************************************************************
* GPIO keys
******************************************************************************/
static struct gpio_keys_button palmtx_pxa_buttons[] = {
{KEY_F8, GPIO_NR_PALMTX_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
};
static struct gpio_keys_platform_data palmtx_pxa_keys_data = {
.buttons = palmtx_pxa_buttons,
.nbuttons = ARRAY_SIZE(palmtx_pxa_buttons),
};
static struct platform_device palmtx_pxa_keys = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &palmtx_pxa_keys_data,
},
};
/******************************************************************************
* Backlight
******************************************************************************/
static int palmtx_backlight_init(struct device *dev)
{
int ret;
ret = gpio_request(GPIO_NR_PALMTX_BL_POWER, "BL POWER");
if (ret)
goto err;
ret = gpio_direction_output(GPIO_NR_PALMTX_BL_POWER, 0);
if (ret)
goto err2;
ret = gpio_request(GPIO_NR_PALMTX_LCD_POWER, "LCD POWER");
if (ret)
goto err2;
ret = gpio_direction_output(GPIO_NR_PALMTX_LCD_POWER, 0);
if (ret)
goto err3;
return 0;
err3:
gpio_free(GPIO_NR_PALMTX_LCD_POWER);
err2:
gpio_free(GPIO_NR_PALMTX_BL_POWER);
err:
return ret;
}
static int palmtx_backlight_notify(int brightness)
{
gpio_set_value(GPIO_NR_PALMTX_BL_POWER, brightness);
gpio_set_value(GPIO_NR_PALMTX_LCD_POWER, brightness);
return brightness;
}
static void palmtx_backlight_exit(struct device *dev)
{
gpio_free(GPIO_NR_PALMTX_BL_POWER);
gpio_free(GPIO_NR_PALMTX_LCD_POWER);
}
static struct platform_pwm_backlight_data palmtx_backlight_data = {
.pwm_id = 0,
.max_brightness = PALMTX_MAX_INTENSITY,
.dft_brightness = PALMTX_MAX_INTENSITY,
.pwm_period_ns = PALMTX_PERIOD_NS,
.init = palmtx_backlight_init,
.notify = palmtx_backlight_notify,
.exit = palmtx_backlight_exit,
};
static struct platform_device palmtx_backlight = {
.name = "pwm-backlight",
.dev = {
.parent = &pxa27x_device_pwm0.dev,
.platform_data = &palmtx_backlight_data,
},
};
/******************************************************************************
* IrDA
******************************************************************************/
static int palmtx_irda_startup(struct device *dev)
{
int err;
err = gpio_request(GPIO_NR_PALMTX_IR_DISABLE, "IR DISABLE");
if (err)
goto err;
err = gpio_direction_output(GPIO_NR_PALMTX_IR_DISABLE, 1);
if (err)
gpio_free(GPIO_NR_PALMTX_IR_DISABLE);
err:
return err;
}
static void palmtx_irda_shutdown(struct device *dev)
{
gpio_free(GPIO_NR_PALMTX_IR_DISABLE);
}
static void palmtx_irda_transceiver_mode(struct device *dev, int mode)
{
gpio_set_value(GPIO_NR_PALMTX_IR_DISABLE, mode & IR_OFF);
pxa2xx_transceiver_mode(dev, mode);
}
static struct pxaficp_platform_data palmtx_ficp_platform_data = {
.startup = palmtx_irda_startup,
.shutdown = palmtx_irda_shutdown,
.transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
.transceiver_mode = palmtx_irda_transceiver_mode,
};
/******************************************************************************
* UDC
******************************************************************************/
static struct pxa2xx_udc_mach_info palmtx_udc_info __initdata = {
.gpio_vbus = GPIO_NR_PALMTX_USB_DETECT_N,
.gpio_vbus_inverted = 1,
.gpio_pullup = GPIO_NR_PALMTX_USB_PULLUP,
.gpio_pullup_inverted = 0,
};
/******************************************************************************
* Power supply
******************************************************************************/
static int power_supply_init(struct device *dev)
{
int ret;
ret = gpio_request(GPIO_NR_PALMTX_POWER_DETECT, "CABLE_STATE_AC");
if (ret)
goto err1;
ret = gpio_direction_input(GPIO_NR_PALMTX_POWER_DETECT);
if (ret)
goto err2;
return 0;
err2:
gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
err1:
return ret;
}
static int palmtx_is_ac_online(void)
{
return gpio_get_value(GPIO_NR_PALMTX_POWER_DETECT);
}
static void power_supply_exit(struct device *dev)
{
gpio_free(GPIO_NR_PALMTX_POWER_DETECT);
}
static char *palmtx_supplicants[] = {
"main-battery",
};
static struct pda_power_pdata power_supply_info = {
.init = power_supply_init,
.is_ac_online = palmtx_is_ac_online,
.exit = power_supply_exit,
.supplied_to = palmtx_supplicants,
.num_supplicants = ARRAY_SIZE(palmtx_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 = PALMTX_BAT_MAX_VOLTAGE,
.min_voltage = PALMTX_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 palmtx_lcd_modes[] = {
{
.pixclock = 57692,
.xres = 320,
.yres = 480,
.bpp = 16,
.left_margin = 32,
.right_margin = 1,
.upper_margin = 7,
.lower_margin = 1,
.hsync_len = 4,
.vsync_len = 1,
},
};
static struct pxafb_mach_info palmtx_lcd_screen = {
.modes = palmtx_lcd_modes,
.num_modes = ARRAY_SIZE(palmtx_lcd_modes),
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
};
/******************************************************************************
* Power management - standby
******************************************************************************/
#ifdef CONFIG_PM
static u32 *addr __initdata;
static u32 resume[3] __initdata = {
0xe3a00101, /* mov r0, #0x40000000 */
0xe380060f, /* orr r0, r0, #0x00f00000 */
0xe590f008, /* ldr pc, [r0, #0x08] */
};
static int __init palmtx_pm_init(void)
{
int i;
/* this is where the bootloader jumps */
addr = phys_to_virt(PALMTX_STR_BASE);
for (i = 0; i < 3; i++)
addr[i] = resume[i];
return 0;
}
device_initcall(palmtx_pm_init);
#endif
/******************************************************************************
* Machine init
******************************************************************************/
static struct platform_device *devices[] __initdata = {
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
&palmtx_pxa_keys,
#endif
&palmtx_backlight,
&power_supply,
};
static struct map_desc palmtx_io_desc[] __initdata = {
{
.virtual = PALMTX_PCMCIA_VIRT,
.pfn = __phys_to_pfn(PALMTX_PCMCIA_PHYS),
.length = PALMTX_PCMCIA_SIZE,
.type = MT_DEVICE
},
};
static void __init palmtx_map_io(void)
{
pxa_map_io();
iotable_init(palmtx_io_desc, ARRAY_SIZE(palmtx_io_desc));
}
/* setup udc GPIOs initial state */
static void __init palmtx_udc_init(void)
{
if (!gpio_request(GPIO_NR_PALMTX_USB_PULLUP, "UDC Vbus")) {
gpio_direction_output(GPIO_NR_PALMTX_USB_PULLUP, 1);
gpio_free(GPIO_NR_PALMTX_USB_PULLUP);
}
}
static void __init palmtx_init(void)
{
pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtx_pin_config));
set_pxa_fb_info(&palmtx_lcd_screen);
pxa_set_mci_info(&palmtx_mci_platform_data);
palmtx_udc_init();
pxa_set_udc_info(&palmtx_udc_info);
pxa_set_ac97_info(NULL);
pxa_set_ficp_info(&palmtx_ficp_platform_data);
pxa_set_keypad_info(&palmtx_keypad_platform_data);
wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
platform_add_devices(devices, ARRAY_SIZE(devices));
}
MACHINE_START(PALMTX, "Palm T|X")
.phys_io = PALMTX_PHYS_IO_START,
.io_pg_offst = io_p2v(0x40000000),
.boot_params = 0xa0000100,
.map_io = palmtx_map_io,
.init_irq = pxa27x_init_irq,
.timer = &pxa_timer,
.init_machine = palmtx_init
MACHINE_END
