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kernel-ark/arch/arm/mach-pxa/palmte2.c
Russell King cc155c6f2c [ARM] pxa: allow platforms to control which uarts are registered 
For some platforms, it is inappropriate to register all PXA UARTs.
In some cases, the UARTs may not be used, and in others we may want
to avoid registering the UARTs to allow other drivers (eg, FICP) to
make use of the UART.

In addition, a while back there was a request to be able to pass
platform data to the UART driver.

This patch enables all of this by providing functions platforms can
call to register each individual UART.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Mike Rapoport <mike@compulab.co.il>
Acked-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Eric Miao <eric.y.miao@gmail.com>
2009-12-01 09:02:55 +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 <linux/usb/gpio_vbus.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 <mach/palmasoc.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 */
GPIO15_GPIO, /* earphone detect */
GPIO37_GPIO, /* LCD power */
GPIO56_GPIO, /* Backlight power */
};
/******************************************************************************
* SD/MMC card controller
******************************************************************************/
static struct pxamci_platform_data palmte2_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.gpio_card_detect = GPIO_NR_PALMTE2_SD_DETECT_N,
.gpio_card_ro = GPIO_NR_PALMTE2_SD_READONLY,
.gpio_power = GPIO_NR_PALMTE2_SD_POWER,
};
/******************************************************************************
* 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 struct pxaficp_platform_data palmte2_ficp_platform_data = {
.gpio_pwdown = GPIO_NR_PALMTE2_IR_DISABLE,
.transceiver_cap = IR_SIRMODE | IR_OFF,
};
/******************************************************************************
* UDC
******************************************************************************/
static struct gpio_vbus_mach_info palmte2_udc_info = {
.gpio_vbus = GPIO_NR_PALMTE2_USB_DETECT_N,
.gpio_vbus_inverted = 1,
.gpio_pullup = GPIO_NR_PALMTE2_USB_PULLUP,
};
static struct platform_device palmte2_gpio_vbus = {
.name = "gpio-vbus",
.id = -1,
.dev = {
.platform_data = &palmte2_udc_info,
},
};
/******************************************************************************
* 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",
};
/******************************************************************************
* aSoC audio
******************************************************************************/
static struct palm27x_asoc_info palmte2_asoc_pdata = {
.jack_gpio = GPIO_NR_PALMTE2_EARPHONE_DETECT,
};
static struct platform_device palmte2_asoc = {
.name = "palm27x-asoc",
.id = -1,
.dev = {
.platform_data = &palmte2_asoc_pdata,
},
};
/******************************************************************************
* 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,
&palmte2_asoc,
&palmte2_gpio_vbus,
};
/* 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));
pxa_set_ffuart_info(NULL);
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
set_pxa_fb_info(&palmte2_lcd_screen);
pxa_set_mci_info(&palmte2_mci_platform_data);
palmte2_udc_init();
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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