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linux-next/arch/arm/mach-pxa/palmld.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 LifeDrive
*
* Author: Marek Vasut <marek.vasut@gmail.com>
*
* Based on work of:
* Alex Osborne <ato@meshy.org>
*
* 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/sysdev.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/mtd/physmap.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/palmld.h>
#include <mach/mmc.h>
#include <mach/pxafb.h>
#include <mach/irda.h>
#include <mach/pxa27x_keypad.h>
#include <mach/palmasoc.h>
#include "generic.h"
#include "devices.h"
/******************************************************************************
* Pin configuration
******************************************************************************/
static unsigned long palmld_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 */
GPIO116_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 */
GPIO108_GPIO, /* ir disable */
GPIO46_FICP_RXD,
GPIO47_FICP_TXD,
/* 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,
/* GPIO KEYS */
GPIO10_GPIO, /* hotsync button */
GPIO12_GPIO, /* power switch */
GPIO15_GPIO, /* lock switch */
/* LEDs */
GPIO52_GPIO, /* green led */
GPIO94_GPIO, /* orange led */
/* PCMCIA */
GPIO48_nPOE,
GPIO49_nPWE,
GPIO50_nPIOR,
GPIO51_nPIOW,
GPIO85_nPCE_1,
GPIO54_nPCE_2,
GPIO79_PSKTSEL,
GPIO55_nPREG,
GPIO56_nPWAIT,
GPIO57_nIOIS16,
GPIO36_GPIO, /* wifi power */
GPIO38_GPIO, /* wifi ready */
GPIO81_GPIO, /* wifi reset */
/* FFUART */
GPIO34_FFUART_RXD,
GPIO39_FFUART_TXD,
/* HDD */
GPIO98_GPIO, /* HDD reset */
GPIO115_GPIO, /* HDD power */
/* MISC */
GPIO13_GPIO, /* earphone detect */
};
/******************************************************************************
* NOR Flash
******************************************************************************/
static struct mtd_partition palmld_partitions[] = {
{
.name = "Flash",
.offset = 0x00000000,
.size = MTDPART_SIZ_FULL,
.mask_flags = 0
}
};
static struct physmap_flash_data palmld_flash_data[] = {
{
.width = 2, /* bankwidth in bytes */
.parts = palmld_partitions,
.nr_parts = ARRAY_SIZE(palmld_partitions)
}
};
static struct resource palmld_flash_resource = {
.start = PXA_CS0_PHYS,
.end = PXA_CS0_PHYS + SZ_4M - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device palmld_flash = {
.name = "physmap-flash",
.id = 0,
.resource = &palmld_flash_resource,
.num_resources = 1,
.dev = {
.platform_data = palmld_flash_data,
},
};
/******************************************************************************
* SD/MMC card controller
******************************************************************************/
static struct pxamci_platform_data palmld_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.gpio_card_detect = GPIO_NR_PALMLD_SD_DETECT_N,
.gpio_card_ro = GPIO_NR_PALMLD_SD_READONLY,
.gpio_power = GPIO_NR_PALMLD_SD_POWER,
.detect_delay = 20,
};
/******************************************************************************
* GPIO keyboard
******************************************************************************/
static unsigned int palmld_matrix_keys[] = {
KEY(0, 1, KEY_F2),
KEY(0, 2, KEY_UP),
KEY(1, 0, KEY_F3),
KEY(1, 1, KEY_F4),
KEY(1, 2, KEY_RIGHT),
KEY(2, 0, KEY_F1),
KEY(2, 1, KEY_F5),
KEY(2, 2, KEY_DOWN),
KEY(3, 0, KEY_F6),
KEY(3, 1, KEY_ENTER),
KEY(3, 2, KEY_LEFT),
};
static struct pxa27x_keypad_platform_data palmld_keypad_platform_data = {
.matrix_key_rows = 4,
.matrix_key_cols = 3,
.matrix_key_map = palmld_matrix_keys,
.matrix_key_map_size = ARRAY_SIZE(palmld_matrix_keys),
.debounce_interval = 30,
};
/******************************************************************************
* GPIO keys
******************************************************************************/
static struct gpio_keys_button palmld_pxa_buttons[] = {
{KEY_F8, GPIO_NR_PALMLD_HOTSYNC_BUTTON_N, 1, "HotSync Button" },
{KEY_F9, GPIO_NR_PALMLD_LOCK_SWITCH, 0, "Lock Switch" },
{KEY_POWER, GPIO_NR_PALMLD_POWER_SWITCH, 0, "Power Switch" },
};
static struct gpio_keys_platform_data palmld_pxa_keys_data = {
.buttons = palmld_pxa_buttons,
.nbuttons = ARRAY_SIZE(palmld_pxa_buttons),
};
static struct platform_device palmld_pxa_keys = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &palmld_pxa_keys_data,
},
};
/******************************************************************************
* Backlight
******************************************************************************/
static int palmld_backlight_init(struct device *dev)
{
int ret;
ret = gpio_request(GPIO_NR_PALMLD_BL_POWER, "BL POWER");
if (ret)
goto err;
ret = gpio_direction_output(GPIO_NR_PALMLD_BL_POWER, 0);
if (ret)
goto err2;
ret = gpio_request(GPIO_NR_PALMLD_LCD_POWER, "LCD POWER");
if (ret)
goto err2;
ret = gpio_direction_output(GPIO_NR_PALMLD_LCD_POWER, 0);
if (ret)
goto err3;
return 0;
err3:
gpio_free(GPIO_NR_PALMLD_LCD_POWER);
err2:
gpio_free(GPIO_NR_PALMLD_BL_POWER);
err:
return ret;
}
static int palmld_backlight_notify(int brightness)
{
gpio_set_value(GPIO_NR_PALMLD_BL_POWER, brightness);
gpio_set_value(GPIO_NR_PALMLD_LCD_POWER, brightness);
return brightness;
}
static void palmld_backlight_exit(struct device *dev)
{
gpio_free(GPIO_NR_PALMLD_BL_POWER);
gpio_free(GPIO_NR_PALMLD_LCD_POWER);
}
static struct platform_pwm_backlight_data palmld_backlight_data = {
.pwm_id = 0,
.max_brightness = PALMLD_MAX_INTENSITY,
.dft_brightness = PALMLD_MAX_INTENSITY,
.pwm_period_ns = PALMLD_PERIOD_NS,
.init = palmld_backlight_init,
.notify = palmld_backlight_notify,
.exit = palmld_backlight_exit,
};
static struct platform_device palmld_backlight = {
.name = "pwm-backlight",
.dev = {
.parent = &pxa27x_device_pwm0.dev,
.platform_data = &palmld_backlight_data,
},
};
/******************************************************************************
* IrDA
******************************************************************************/
static struct pxaficp_platform_data palmld_ficp_platform_data = {
.gpio_pwdown = GPIO_NR_PALMLD_IR_DISABLE,
.transceiver_cap = IR_SIRMODE | IR_OFF,
};
/******************************************************************************
* LEDs
******************************************************************************/
struct gpio_led gpio_leds[] = {
{
.name = "palmld:green:led",
.default_trigger = "none",
.gpio = GPIO_NR_PALMLD_LED_GREEN,
}, {
.name = "palmld:amber:led",
.default_trigger = "none",
.gpio = GPIO_NR_PALMLD_LED_AMBER,
},
};
static struct gpio_led_platform_data gpio_led_info = {
.leds = gpio_leds,
.num_leds = ARRAY_SIZE(gpio_leds),
};
static struct platform_device palmld_leds = {
.name = "leds-gpio",
.id = -1,
.dev = {
.platform_data = &gpio_led_info,
}
};
/******************************************************************************
* Power supply
******************************************************************************/
static int power_supply_init(struct device *dev)
{
int ret;
ret = gpio_request(GPIO_NR_PALMLD_POWER_DETECT, "CABLE_STATE_AC");
if (ret)
goto err1;
ret = gpio_direction_input(GPIO_NR_PALMLD_POWER_DETECT);
if (ret)
goto err2;
ret = gpio_request(GPIO_NR_PALMLD_USB_DETECT_N, "CABLE_STATE_USB");
if (ret)
goto err2;
ret = gpio_direction_input(GPIO_NR_PALMLD_USB_DETECT_N);
if (ret)
goto err3;
return 0;
err3:
gpio_free(GPIO_NR_PALMLD_USB_DETECT_N);
err2:
gpio_free(GPIO_NR_PALMLD_POWER_DETECT);
err1:
return ret;
}
static int palmld_is_ac_online(void)
{
return gpio_get_value(GPIO_NR_PALMLD_POWER_DETECT);
}
static int palmld_is_usb_online(void)
{
return !gpio_get_value(GPIO_NR_PALMLD_USB_DETECT_N);
}
static void power_supply_exit(struct device *dev)
{
gpio_free(GPIO_NR_PALMLD_USB_DETECT_N);
gpio_free(GPIO_NR_PALMLD_POWER_DETECT);
}
static char *palmld_supplicants[] = {
"main-battery",
};
static struct pda_power_pdata power_supply_info = {
.init = power_supply_init,
.is_ac_online = palmld_is_ac_online,
.is_usb_online = palmld_is_usb_online,
.exit = power_supply_exit,
.supplied_to = palmld_supplicants,
.num_supplicants = ARRAY_SIZE(palmld_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 = PALMLD_BAT_MAX_VOLTAGE,
.min_voltage = PALMLD_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 palmld_asoc_pdata = {
.jack_gpio = GPIO_NR_PALMLD_EARPHONE_DETECT,
};
static pxa2xx_audio_ops_t palmld_ac97_pdata = {
.reset_gpio = 95,
};
static struct platform_device palmld_asoc = {
.name = "palm27x-asoc",
.id = -1,
.dev = {
.platform_data = &palmld_asoc_pdata,
},
};
/******************************************************************************
* HDD
******************************************************************************/
static struct platform_device palmld_hdd = {
.name = "pata_palmld",
.id = -1,
};
/******************************************************************************
* Framebuffer
******************************************************************************/
static struct pxafb_mode_info palmld_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 palmld_lcd_screen = {
.modes = palmld_lcd_modes,
.num_modes = ARRAY_SIZE(palmld_lcd_modes),
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
};
/******************************************************************************
* Power management - standby
******************************************************************************/
static void __init palmld_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(PALMLD_STR_BASE), resume, sizeof(resume));
}
/******************************************************************************
* Machine init
******************************************************************************/
static struct platform_device *devices[] __initdata = {
#if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
&palmld_pxa_keys,
#endif
&palmld_backlight,
&palmld_leds,
&power_supply,
&palmld_asoc,
&palmld_hdd,
&palmld_flash,
};
static struct map_desc palmld_io_desc[] __initdata = {
{
.virtual = PALMLD_IDE_VIRT,
.pfn = __phys_to_pfn(PALMLD_IDE_PHYS),
.length = PALMLD_IDE_SIZE,
.type = MT_DEVICE
},
{
.virtual = PALMLD_USB_VIRT,
.pfn = __phys_to_pfn(PALMLD_USB_PHYS),
.length = PALMLD_USB_SIZE,
.type = MT_DEVICE
},
};
static void __init palmld_map_io(void)
{
pxa_map_io();
iotable_init(palmld_io_desc, ARRAY_SIZE(palmld_io_desc));
}
static void __init palmld_init(void)
{
pxa2xx_mfp_config(ARRAY_AND_SIZE(palmld_pin_config));
pxa_set_ffuart_info(NULL);
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
palmld_pm_init();
set_pxa_fb_info(&palmld_lcd_screen);
pxa_set_mci_info(&palmld_mci_platform_data);
pxa_set_ac97_info(&palmld_ac97_pdata);
pxa_set_ficp_info(&palmld_ficp_platform_data);
pxa_set_keypad_info(&palmld_keypad_platform_data);
wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
platform_add_devices(devices, ARRAY_SIZE(devices));
}
MACHINE_START(PALMLD, "Palm LifeDrive")
.phys_io = PALMLD_PHYS_IO_START,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.boot_params = 0xa0000100,
.map_io = palmld_map_io,
.init_irq = pxa27x_init_irq,
.timer = &pxa_timer,
.init_machine = palmld_init
MACHINE_END
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