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linux-stable/arch/arm/mach-pxa/palmt5.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|T5
*
* Author: Marek Vasut <marek.vasut@gmail.com>
*
* Based on work of:
* Ales Snuparek <snuparek@atlas.cz>
* Justin Kendrick <twilightsentry@gmail.com>
* RichardT5 <richard_t5@users.sourceforge.net>
*
* 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/pxa27x.h>
#include <mach/audio.h>
#include <mach/palmt5.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 "generic.h"
#include "devices.h"
/******************************************************************************
* Pin configuration
******************************************************************************/
static unsigned long palmt5_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,
GPIO89_AC97_SYSCLK,
GPIO95_AC97_nRESET,
/* IrDA */
GPIO40_GPIO, /* ir disable */
GPIO46_FICP_RXD,
GPIO47_FICP_TXD,
/* USB */
GPIO15_GPIO, /* usb detect */
GPIO93_GPIO, /* usb power */
/* 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,
/* PWM */
GPIO16_PWM0_OUT,
/* FFUART */
GPIO34_FFUART_RXD,
GPIO39_FFUART_TXD,
/* MISC */
GPIO10_GPIO, /* hotsync button */
GPIO90_GPIO, /* power detect */
GPIO107_GPIO, /* earphone detect */
};
/******************************************************************************
* SD/MMC card controller
******************************************************************************/
static struct pxamci_platform_data palmt5_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.gpio_card_detect = GPIO_NR_PALMT5_SD_DETECT_N,
.gpio_card_ro = GPIO_NR_PALMT5_SD_READONLY,
.gpio_power = GPIO_NR_PALMT5_SD_POWER,
.detect_delay = 20,
};
/******************************************************************************
* GPIO keyboard
******************************************************************************/
static unsigned int palmt5_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 palmt5_keypad_platform_data = {
.matrix_key_rows = 4,
.matrix_key_cols = 3,
.matrix_key_map = palmt5_matrix_keys,
.matrix_key_map_size = ARRAY_SIZE(palmt5_matrix_keys),
.debounce_interval = 30,
};
/******************************************************************************
* GPIO keys
******************************************************************************/
static struct gpio_keys_button palmt5_pxa_buttons[] = {
{KEY_F8, GPIO_NR_PALMT5_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
};
static struct gpio_keys_platform_data palmt5_pxa_keys_data = {
.buttons = palmt5_pxa_buttons,
.nbuttons = ARRAY_SIZE(palmt5_pxa_buttons),
};
static struct platform_device palmt5_pxa_keys = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &palmt5_pxa_keys_data,
},
};
/******************************************************************************
* Backlight
******************************************************************************/
static int palmt5_backlight_init(struct device *dev)
{
int ret;
ret = gpio_request(GPIO_NR_PALMT5_BL_POWER, "BL POWER");
if (ret)
goto err;
ret = gpio_direction_output(GPIO_NR_PALMT5_BL_POWER, 0);
if (ret)
goto err2;
ret = gpio_request(GPIO_NR_PALMT5_LCD_POWER, "LCD POWER");
if (ret)
goto err2;
ret = gpio_direction_output(GPIO_NR_PALMT5_LCD_POWER, 0);
if (ret)
goto err3;
return 0;
err3:
gpio_free(GPIO_NR_PALMT5_LCD_POWER);
err2:
gpio_free(GPIO_NR_PALMT5_BL_POWER);
err:
return ret;
}
static int palmt5_backlight_notify(int brightness)
{
gpio_set_value(GPIO_NR_PALMT5_BL_POWER, brightness);
gpio_set_value(GPIO_NR_PALMT5_LCD_POWER, brightness);
return brightness;
}
static void palmt5_backlight_exit(struct device *dev)
{
gpio_free(GPIO_NR_PALMT5_BL_POWER);
gpio_free(GPIO_NR_PALMT5_LCD_POWER);
}
static struct platform_pwm_backlight_data palmt5_backlight_data = {
.pwm_id = 0,
.max_brightness = PALMT5_MAX_INTENSITY,
.dft_brightness = PALMT5_MAX_INTENSITY,
.pwm_period_ns = PALMT5_PERIOD_NS,
.init = palmt5_backlight_init,
.notify = palmt5_backlight_notify,
.exit = palmt5_backlight_exit,
};
static struct platform_device palmt5_backlight = {
.name = "pwm-backlight",
.dev = {
.parent = &pxa27x_device_pwm0.dev,
.platform_data = &palmt5_backlight_data,
},
};
/******************************************************************************
* IrDA
******************************************************************************/
static struct pxaficp_platform_data palmt5_ficp_platform_data = {
.gpio_pwdown = GPIO_NR_PALMT5_IR_DISABLE,
.transceiver_cap = IR_SIRMODE | IR_OFF,
};
/******************************************************************************
* UDC
******************************************************************************/
static struct gpio_vbus_mach_info palmt5_udc_info = {
.gpio_vbus = GPIO_NR_PALMT5_USB_DETECT_N,
.gpio_vbus_inverted = 1,
.gpio_pullup = GPIO_NR_PALMT5_USB_PULLUP,
};
static struct platform_device palmt5_gpio_vbus = {
.name = "gpio-vbus",
.id = -1,
.dev = {
.platform_data = &palmt5_udc_info,
},
};
/******************************************************************************
* Power supply
******************************************************************************/
static int power_supply_init(struct device *dev)
{
int ret;
ret = gpio_request(GPIO_NR_PALMT5_POWER_DETECT, "CABLE_STATE_AC");
if (ret)
goto err1;
ret = gpio_direction_input(GPIO_NR_PALMT5_POWER_DETECT);
if (ret)
goto err2;
return 0;
err2:
gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
err1:
return ret;
}
static int palmt5_is_ac_online(void)
{
return gpio_get_value(GPIO_NR_PALMT5_POWER_DETECT);
}
static void power_supply_exit(struct device *dev)
{
gpio_free(GPIO_NR_PALMT5_POWER_DETECT);
}
static char *palmt5_supplicants[] = {
"main-battery",
};
static struct pda_power_pdata power_supply_info = {
.init = power_supply_init,
.is_ac_online = palmt5_is_ac_online,
.exit = power_supply_exit,
.supplied_to = palmt5_supplicants,
.num_supplicants = ARRAY_SIZE(palmt5_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 = PALMT5_BAT_MAX_VOLTAGE,
.min_voltage = PALMT5_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 palmt5_asoc_pdata = {
.jack_gpio = GPIO_NR_PALMT5_EARPHONE_DETECT,
};
static pxa2xx_audio_ops_t palmt5_ac97_pdata = {
.reset_gpio = 95,
};
static struct platform_device palmt5_asoc = {
.name = "palm27x-asoc",
.id = -1,
.dev = {
.platform_data = &palmt5_asoc_pdata,
},
};
/******************************************************************************
* Framebuffer
******************************************************************************/
static struct pxafb_mode_info palmt5_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 palmt5_lcd_screen = {
.modes = palmt5_lcd_modes,
.num_modes = ARRAY_SIZE(palmt5_lcd_modes),
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
};
/******************************************************************************
* Power management - standby
******************************************************************************/
static void __init palmt5_pm_init(void)
{
static u32 resume[] = {
0xe3a00101, /* mov r0, #0x40000000 */
0xe380060f, /* orr r0, r0, #0x00f00000 */
0xe590f008, /* ldr pc, [r0, #0x08] */
};
/* copy the bootloader */
memcpy(phys_to_virt(PALMT5_STR_BASE), resume, sizeof(resume));
}
/******************************************************************************
* Machine init
******************************************************************************/
static struct platform_device *devices[] __initdata = {
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
&palmt5_pxa_keys,
#endif
&palmt5_backlight,
&power_supply,
&palmt5_asoc,
&palmt5_gpio_vbus,
};
/* setup udc GPIOs initial state */
static void __init palmt5_udc_init(void)
{
if (!gpio_request(GPIO_NR_PALMT5_USB_PULLUP, "UDC Vbus")) {
gpio_direction_output(GPIO_NR_PALMT5_USB_PULLUP, 1);
gpio_free(GPIO_NR_PALMT5_USB_PULLUP);
}
}
static void __init palmt5_init(void)
{
pxa2xx_mfp_config(ARRAY_AND_SIZE(palmt5_pin_config));
pxa_set_ffuart_info(NULL);
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
palmt5_pm_init();
set_pxa_fb_info(&palmt5_lcd_screen);
pxa_set_mci_info(&palmt5_mci_platform_data);
palmt5_udc_init();
pxa_set_ac97_info(&palmt5_ac97_pdata);
pxa_set_ficp_info(&palmt5_ficp_platform_data);
pxa_set_keypad_info(&palmt5_keypad_platform_data);
wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
platform_add_devices(devices, ARRAY_SIZE(devices));
}
MACHINE_START(PALMT5, "Palm Tungsten|T5")
.phys_io = PALMT5_PHYS_IO_START,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.boot_params = 0xa0000100,
.map_io = pxa_map_io,
.init_irq = pxa27x_init_irq,
.timer = &pxa_timer,
.init_machine = palmt5_init
MACHINE_END
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