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linux-sg2042/arch/arm/mach-pxa/palmtc.c

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/*
* linux/arch/arm/mach-pxa/palmtc.c
*
* Support for the Palm Tungsten|C
*
* Author: Marek Vasut <marek.vasut@gmail.com>
*
* Based on work of:
* Petr Blaha <p3t3@centrum.cz>
* Chetan S. Kumar <shivakumar.chetan@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.
*/
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/irq.h>
#include <linux/input.h>
#include <linux/pwm_backlight.h>
#include <linux/gpio.h>
#include <linux/input/matrix_keypad.h>
#include <linux/ucb1400.h>
#include <linux/power_supply.h>
#include <linux/gpio_keys.h>
#include <linux/mtd/physmap.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <mach/audio.h>
#include <mach/palmtc.h>
#include <mach/mmc.h>
#include <mach/pxafb.h>
#include <mach/mfp-pxa25x.h>
#include <mach/irda.h>
#include <mach/udc.h>
#include <mach/pxa2xx-regs.h>
#include "generic.h"
#include "devices.h"
/******************************************************************************
* Pin configuration
******************************************************************************/
static unsigned long palmtc_pin_config[] __initdata = {
/* MMC */
GPIO6_MMC_CLK,
GPIO8_MMC_CS0,
GPIO12_GPIO, /* detect */
GPIO32_GPIO, /* power */
GPIO54_GPIO, /* r/o switch */
/* PCMCIA */
GPIO52_nPCE_1,
GPIO53_nPCE_2,
GPIO50_nPIOR,
GPIO51_nPIOW,
GPIO49_nPWE,
GPIO48_nPOE,
GPIO52_nPCE_1,
GPIO53_nPCE_2,
GPIO57_nIOIS16,
GPIO56_nPWAIT,
/* AC97 */
GPIO28_AC97_BITCLK,
GPIO29_AC97_SDATA_IN_0,
GPIO30_AC97_SDATA_OUT,
GPIO31_AC97_SYNC,
/* IrDA */
GPIO45_GPIO, /* ir disable */
GPIO46_FICP_RXD,
GPIO47_FICP_TXD,
/* PWM */
GPIO17_PWM1_OUT,
/* USB */
GPIO4_GPIO, /* detect */
GPIO36_GPIO, /* pullup */
/* LCD */
GPIOxx_LCD_TFT_16BPP,
/* MATRIX KEYPAD */
GPIO0_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 0 */
GPIO9_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 1 */
GPIO10_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 2 */
GPIO11_GPIO | WAKEUP_ON_EDGE_BOTH, /* in 3 */
GPIO18_GPIO | MFP_LPM_DRIVE_LOW, /* out 0 */
GPIO19_GPIO | MFP_LPM_DRIVE_LOW, /* out 1 */
GPIO20_GPIO | MFP_LPM_DRIVE_LOW, /* out 2 */
GPIO21_GPIO | MFP_LPM_DRIVE_LOW, /* out 3 */
GPIO22_GPIO | MFP_LPM_DRIVE_LOW, /* out 4 */
GPIO23_GPIO | MFP_LPM_DRIVE_LOW, /* out 5 */
GPIO24_GPIO | MFP_LPM_DRIVE_LOW, /* out 6 */
GPIO25_GPIO | MFP_LPM_DRIVE_LOW, /* out 7 */
GPIO26_GPIO | MFP_LPM_DRIVE_LOW, /* out 8 */
GPIO27_GPIO | MFP_LPM_DRIVE_LOW, /* out 9 */
GPIO79_GPIO | MFP_LPM_DRIVE_LOW, /* out 10 */
GPIO80_GPIO | MFP_LPM_DRIVE_LOW, /* out 11 */
/* PXA GPIO KEYS */
GPIO7_GPIO | WAKEUP_ON_EDGE_BOTH, /* hotsync button on cradle */
/* MISC */
GPIO1_RST, /* reset */
GPIO2_GPIO, /* earphone detect */
GPIO16_GPIO, /* backlight switch */
};
/******************************************************************************
* SD/MMC card controller
******************************************************************************/
static struct pxamci_platform_data palmtc_mci_platform_data = {
.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
.gpio_power = GPIO_NR_PALMTC_SD_POWER,
.gpio_card_ro = GPIO_NR_PALMTC_SD_READONLY,
.gpio_card_detect = GPIO_NR_PALMTC_SD_DETECT_N,
.detect_delay_ms = 200,
};
/******************************************************************************
* GPIO keys
******************************************************************************/
static struct gpio_keys_button palmtc_pxa_buttons[] = {
{KEY_F8, GPIO_NR_PALMTC_HOTSYNC_BUTTON, 1, "HotSync Button", EV_KEY, 1},
};
static struct gpio_keys_platform_data palmtc_pxa_keys_data = {
.buttons = palmtc_pxa_buttons,
.nbuttons = ARRAY_SIZE(palmtc_pxa_buttons),
};
static struct platform_device palmtc_pxa_keys = {
.name = "gpio-keys",
.id = -1,
.dev = {
.platform_data = &palmtc_pxa_keys_data,
},
};
/******************************************************************************
* Backlight
******************************************************************************/
static int palmtc_backlight_init(struct device *dev)
{
int ret;
ret = gpio_request(GPIO_NR_PALMTC_BL_POWER, "BL POWER");
if (ret)
goto err;
ret = gpio_direction_output(GPIO_NR_PALMTC_BL_POWER, 1);
if (ret)
goto err2;
return 0;
err2:
gpio_free(GPIO_NR_PALMTC_BL_POWER);
err:
return ret;
}
static int palmtc_backlight_notify(struct device *dev, int brightness)
{
/* backlight is on when GPIO16 AF0 is high */
gpio_set_value(GPIO_NR_PALMTC_BL_POWER, brightness);
return brightness;
}
static void palmtc_backlight_exit(struct device *dev)
{
gpio_free(GPIO_NR_PALMTC_BL_POWER);
}
static struct platform_pwm_backlight_data palmtc_backlight_data = {
.pwm_id = 1,
.max_brightness = PALMTC_MAX_INTENSITY,
.dft_brightness = PALMTC_MAX_INTENSITY,
.pwm_period_ns = PALMTC_PERIOD_NS,
.init = palmtc_backlight_init,
.notify = palmtc_backlight_notify,
.exit = palmtc_backlight_exit,
};
static struct platform_device palmtc_backlight = {
.name = "pwm-backlight",
.dev = {
.parent = &pxa25x_device_pwm1.dev,
.platform_data = &palmtc_backlight_data,
},
};
/******************************************************************************
* IrDA
******************************************************************************/
static struct pxaficp_platform_data palmtc_ficp_platform_data = {
.gpio_pwdown = GPIO_NR_PALMTC_IR_DISABLE,
.transceiver_cap = IR_SIRMODE | IR_OFF,
};
/******************************************************************************
* Keyboard
******************************************************************************/
static const uint32_t palmtc_matrix_keys[] = {
KEY(0, 0, KEY_F1),
KEY(0, 1, KEY_X),
KEY(0, 2, KEY_POWER),
KEY(0, 3, KEY_TAB),
KEY(0, 4, KEY_A),
KEY(0, 5, KEY_Q),
KEY(0, 6, KEY_LEFTSHIFT),
KEY(0, 7, KEY_Z),
KEY(0, 8, KEY_S),
KEY(0, 9, KEY_W),
KEY(0, 10, KEY_E),
KEY(0, 11, KEY_UP),
KEY(1, 0, KEY_F2),
KEY(1, 1, KEY_DOWN),
KEY(1, 3, KEY_D),
KEY(1, 4, KEY_C),
KEY(1, 5, KEY_F),
KEY(1, 6, KEY_R),
KEY(1, 7, KEY_SPACE),
KEY(1, 8, KEY_V),
KEY(1, 9, KEY_G),
KEY(1, 10, KEY_T),
KEY(1, 11, KEY_LEFT),
KEY(2, 0, KEY_F3),
KEY(2, 1, KEY_LEFTCTRL),
KEY(2, 3, KEY_H),
KEY(2, 4, KEY_Y),
KEY(2, 5, KEY_N),
KEY(2, 6, KEY_J),
KEY(2, 7, KEY_U),
KEY(2, 8, KEY_M),
KEY(2, 9, KEY_K),
KEY(2, 10, KEY_I),
KEY(2, 11, KEY_RIGHT),
KEY(3, 0, KEY_F4),
KEY(3, 1, KEY_ENTER),
KEY(3, 3, KEY_DOT),
KEY(3, 4, KEY_L),
KEY(3, 5, KEY_O),
KEY(3, 6, KEY_LEFTALT),
KEY(3, 7, KEY_ENTER),
KEY(3, 8, KEY_BACKSPACE),
KEY(3, 9, KEY_P),
KEY(3, 10, KEY_B),
KEY(3, 11, KEY_FN),
};
const struct matrix_keymap_data palmtc_keymap_data = {
.keymap = palmtc_matrix_keys,
.keymap_size = ARRAY_SIZE(palmtc_matrix_keys),
};
static const unsigned int palmtc_keypad_row_gpios[] = {
0, 9, 10, 11
};
static const unsigned int palmtc_keypad_col_gpios[] = {
18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 79, 80
};
static struct matrix_keypad_platform_data palmtc_keypad_platform_data = {
.keymap_data = &palmtc_keymap_data,
.row_gpios = palmtc_keypad_row_gpios,
.num_row_gpios = ARRAY_SIZE(palmtc_keypad_row_gpios),
.col_gpios = palmtc_keypad_col_gpios,
.num_col_gpios = ARRAY_SIZE(palmtc_keypad_col_gpios),
.active_low = 1,
.debounce_ms = 20,
.col_scan_delay_us = 5,
};
static struct platform_device palmtc_keyboard = {
.name = "matrix-keypad",
.id = -1,
.dev = {
.platform_data = &palmtc_keypad_platform_data,
},
};
/******************************************************************************
* UDC
******************************************************************************/
static struct pxa2xx_udc_mach_info palmtc_udc_info __initdata = {
.gpio_vbus = GPIO_NR_PALMTC_USB_DETECT_N,
.gpio_vbus_inverted = 1,
.gpio_pullup = GPIO_NR_PALMTC_USB_POWER,
};
/******************************************************************************
* Touchscreen / Battery / GPIO-extender
******************************************************************************/
static struct platform_device palmtc_ucb1400_core = {
.name = "ucb1400_core",
.id = -1,
};
/******************************************************************************
* NOR Flash
******************************************************************************/
static struct resource palmtc_flash_resource = {
.start = PXA_CS0_PHYS,
.end = PXA_CS0_PHYS + SZ_16M - 1,
.flags = IORESOURCE_MEM,
};
static struct mtd_partition palmtc_flash_parts[] = {
{
.name = "U-Boot Bootloader",
.offset = 0x0,
.size = 0x40000,
},
{
.name = "Linux Kernel",
.offset = 0x40000,
.size = 0x2c0000,
},
{
.name = "Filesystem",
.offset = 0x300000,
.size = 0xcc0000,
},
{
.name = "U-Boot Environment",
.offset = 0xfc0000,
.size = MTDPART_SIZ_FULL,
},
};
static struct physmap_flash_data palmtc_flash_data = {
.width = 4,
.parts = palmtc_flash_parts,
.nr_parts = ARRAY_SIZE(palmtc_flash_parts),
};
static struct platform_device palmtc_flash = {
.name = "physmap-flash",
.id = -1,
.resource = &palmtc_flash_resource,
.num_resources = 1,
.dev = {
.platform_data = &palmtc_flash_data,
},
};
/******************************************************************************
* Framebuffer
******************************************************************************/
static struct pxafb_mode_info palmtc_lcd_modes[] = {
{
.pixclock = 115384,
.xres = 320,
.yres = 320,
.bpp = 16,
.left_margin = 27,
.right_margin = 7,
.upper_margin = 7,
.lower_margin = 8,
.hsync_len = 6,
.vsync_len = 1,
},
};
static struct pxafb_mach_info palmtc_lcd_screen = {
.modes = palmtc_lcd_modes,
.num_modes = ARRAY_SIZE(palmtc_lcd_modes),
.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
};
/******************************************************************************
* Machine init
******************************************************************************/
static struct platform_device *devices[] __initdata = {
&palmtc_backlight,
&palmtc_ucb1400_core,
&palmtc_keyboard,
&palmtc_pxa_keys,
&palmtc_flash,
};
static void __init palmtc_init(void)
{
pxa2xx_mfp_config(ARRAY_AND_SIZE(palmtc_pin_config));
pxa_set_ffuart_info(NULL);
pxa_set_btuart_info(NULL);
pxa_set_stuart_info(NULL);
pxa_set_hwuart_info(NULL);
set_pxa_fb_info(&palmtc_lcd_screen);
pxa_set_mci_info(&palmtc_mci_platform_data);
pxa_set_udc_info(&palmtc_udc_info);
pxa_set_ac97_info(NULL);
pxa_set_ficp_info(&palmtc_ficp_platform_data);
platform_add_devices(devices, ARRAY_SIZE(devices));
};
MACHINE_START(PALMTC, "Palm Tungsten|C")
.phys_io = 0x40000000,
.boot_params = 0xa0000100,
.io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
.map_io = pxa_map_io,
.init_irq = pxa25x_init_irq,
.timer = &pxa_timer,
.init_machine = palmtc_init
MACHINE_END
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