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kernel-fxtec-pro1x/arch/arm/mach-omap1/board-palmte.c
Andrzej Zaborowski c369501508 ARM: OMAP: Palm Tungsten E board update 
General update of the board file for Palm Tungsten E. Registers the
platform devices contained in the PDA (ROM chip, keypad, infra-red)
and updates the configuration for USB and MMC, whose config values
were previously guessed in most cases due to lack of documentation
(and now are confirmed by a number of users). Macros for GPIO pins are
moved to a file in include/asm-arm/arch-omap.

Signed-off-by: Andrzej Zaborowski <balrog@zabor.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2007-09-20 18:34:49 -07:00

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/*
* linux/arch/arm/mach-omap1/board-palmte.c
*
* Modified from board-generic.c
*
* Support for the Palm Tungsten E PDA.
*
* Original version : Laurent Gonzalez
*
* Maintainers : http://palmtelinux.sf.net
* palmtelinux-developpers@lists.sf.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.
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/input.h>
#include <linux/platform_device.h>
#include <linux/mtd/mtd.h>
#include <linux/mtd/partitions.h>
#include <linux/spi/spi.h>
#include <linux/spi/tsc2102.h>
#include <linux/interrupt.h>
#include <asm/apm.h>
#include <asm/hardware.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/map.h>
#include <asm/mach/flash.h>
#include <asm/arch/gpio.h>
#include <asm/arch/mux.h>
#include <asm/arch/usb.h>
#include <asm/arch/tc.h>
#include <asm/arch/dma.h>
#include <asm/arch/board.h>
#include <asm/arch/irda.h>
#include <asm/arch/keypad.h>
#include <asm/arch/common.h>
#include <asm/arch/mcbsp.h>
#include <asm/arch/omap-alsa.h>
static void __init omap_palmte_init_irq(void)
{
omap1_init_common_hw();
omap_init_irq();
omap_gpio_init();
}
static int palmte_keymap[] = {
KEY(0, 0, KEY_F1),
KEY(0, 1, KEY_F2),
KEY(0, 2, KEY_F3),
KEY(0, 3, KEY_F4),
KEY(0, 4, KEY_POWER),
KEY(1, 0, KEY_LEFT),
KEY(1, 1, KEY_DOWN),
KEY(1, 2, KEY_UP),
KEY(1, 3, KEY_RIGHT),
KEY(1, 4, KEY_CENTER),
0,
};
static struct omap_kp_platform_data palmte_kp_data = {
.rows = 8,
.cols = 8,
.keymap = palmte_keymap,
.rep = 1,
.delay = 12,
};
static struct resource palmte_kp_resources[] = {
[0] = {
.start = INT_KEYBOARD,
.end = INT_KEYBOARD,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device palmte_kp_device = {
.name = "omap-keypad",
.id = -1,
.dev = {
.platform_data = &palmte_kp_data,
},
.num_resources = ARRAY_SIZE(palmte_kp_resources),
.resource = palmte_kp_resources,
};
static struct mtd_partition palmte_rom_partitions[] = {
/* PalmOS "Small ROM", contains the bootloader and the debugger */
{
.name = "smallrom",
.offset = 0,
.size = 0xa000,
.mask_flags = MTD_WRITEABLE,
},
/* PalmOS "Big ROM", a filesystem with all the OS code and data */
{
.name = "bigrom",
.offset = SZ_128K,
/*
* 0x5f0000 bytes big in the multi-language ("EFIGS") version,
* 0x7b0000 bytes in the English-only ("enUS") version.
*/
.size = 0x7b0000,
.mask_flags = MTD_WRITEABLE,
},
};
static struct flash_platform_data palmte_rom_data = {
.map_name = "map_rom",
.width = 2,
.parts = palmte_rom_partitions,
.nr_parts = ARRAY_SIZE(palmte_rom_partitions),
};
static struct resource palmte_rom_resource = {
.start = OMAP_CS0_PHYS,
.end = OMAP_CS0_PHYS + SZ_8M - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device palmte_rom_device = {
.name = "omapflash",
.id = -1,
.dev = {
.platform_data = &palmte_rom_data,
},
.num_resources = 1,
.resource = &palmte_rom_resource,
};
static struct platform_device palmte_lcd_device = {
.name = "lcd_palmte",
.id = -1,
};
static struct omap_backlight_config palmte_backlight_config = {
.default_intensity = 0xa0,
};
static struct platform_device palmte_backlight_device = {
.name = "omap-bl",
.id = -1,
.dev = {
.platform_data = &palmte_backlight_config,
},
};
static struct omap_irda_config palmte_irda_config = {
.transceiver_cap = IR_SIRMODE,
.rx_channel = OMAP_DMA_UART3_RX,
.tx_channel = OMAP_DMA_UART3_TX,
.dest_start = UART3_THR,
.src_start = UART3_RHR,
.tx_trigger = 0,
.rx_trigger = 0,
};
static struct resource palmte_irda_resources[] = {
[0] = {
.start = INT_UART3,
.end = INT_UART3,
.flags = IORESOURCE_IRQ,
},
};
static struct platform_device palmte_irda_device = {
.name = "omapirda",
.id = -1,
.dev = {
.platform_data = &palmte_irda_config,
},
.num_resources = ARRAY_SIZE(palmte_irda_resources),
.resource = palmte_irda_resources,
};
static struct platform_device *devices[] __initdata = {
&palmte_rom_device,
&palmte_kp_device,
&palmte_lcd_device,
&palmte_backlight_device,
&palmte_irda_device,
};
static struct omap_usb_config palmte_usb_config __initdata = {
.register_dev = 1, /* Mini-B only receptacle */
.hmc_mode = 0,
.pins[0] = 2,
};
static struct omap_mmc_config palmte_mmc_config __initdata = {
.mmc[0] = {
.enabled = 1,
.wp_pin = PALMTE_MMC_WP_GPIO,
.power_pin = PALMTE_MMC_POWER_GPIO,
.switch_pin = PALMTE_MMC_SWITCH_GPIO,
},
};
static struct omap_lcd_config palmte_lcd_config __initdata = {
.ctrl_name = "internal",
};
static struct omap_uart_config palmte_uart_config __initdata = {
.enabled_uarts = (1 << 0) | (1 << 1) | (0 << 2),
};
static struct omap_mcbsp_reg_cfg palmte_mcbsp1_regs = {
.spcr2 = FRST | GRST | XRST | XINTM(3),
.xcr2 = XDATDLY(1) | XFIG,
.xcr1 = XWDLEN1(OMAP_MCBSP_WORD_32),
.pcr0 = SCLKME | FSXP | CLKXP,
};
static struct omap_alsa_codec_config palmte_alsa_config = {
.name = "TSC2102 audio",
.mcbsp_regs_alsa = &palmte_mcbsp1_regs,
.codec_configure_dev = NULL, /* tsc2102_configure, */
.codec_set_samplerate = NULL, /* tsc2102_set_samplerate, */
.codec_clock_setup = NULL, /* tsc2102_clock_setup, */
.codec_clock_on = NULL, /* tsc2102_clock_on, */
.codec_clock_off = NULL, /* tsc2102_clock_off, */
.get_default_samplerate = NULL, /* tsc2102_get_default_samplerate, */
};
#ifdef CONFIG_APM
/*
* Values measured in 10 minute intervals averaged over 10 samples.
* May differ slightly from device to device but should be accurate
* enough to give basic idea of battery life left and trigger
* potential alerts.
*/
static const int palmte_battery_sample[] = {
2194, 2157, 2138, 2120,
2104, 2089, 2075, 2061,
2048, 2038, 2026, 2016,
2008, 1998, 1989, 1980,
1970, 1958, 1945, 1928,
1910, 1888, 1860, 1827,
1791, 1751, 1709, 1656,
};
#define INTERVAL 10
#define BATTERY_HIGH_TRESHOLD 66
#define BATTERY_LOW_TRESHOLD 33
static void palmte_get_power_status(struct apm_power_info *info, int *battery)
{
int charging, batt, hi, lo, mid;
charging = !omap_get_gpio_datain(PALMTE_DC_GPIO);
batt = battery[0];
if (charging)
batt -= 60;
hi = ARRAY_SIZE(palmte_battery_sample);
lo = 0;
info->battery_flag = 0;
info->units = APM_UNITS_MINS;
if (batt > palmte_battery_sample[lo]) {
info->battery_life = 100;
info->time = INTERVAL * ARRAY_SIZE(palmte_battery_sample);
} else if (batt <= palmte_battery_sample[hi - 1]) {
info->battery_life = 0;
info->time = 0;
} else {
while (hi > lo + 1) {
mid = (hi + lo) >> 2;
if (batt <= palmte_battery_sample[mid])
lo = mid;
else
hi = mid;
}
mid = palmte_battery_sample[lo] - palmte_battery_sample[hi];
hi = palmte_battery_sample[lo] - batt;
info->battery_life = 100 - (100 * lo + 100 * hi / mid) /
ARRAY_SIZE(palmte_battery_sample);
info->time = INTERVAL * (ARRAY_SIZE(palmte_battery_sample) -
lo) - INTERVAL * hi / mid;
}
if (charging) {
info->ac_line_status = APM_AC_ONLINE;
info->battery_status = APM_BATTERY_STATUS_CHARGING;
info->battery_flag |= APM_BATTERY_FLAG_CHARGING;
} else {
info->ac_line_status = APM_AC_OFFLINE;
if (info->battery_life > BATTERY_HIGH_TRESHOLD)
info->battery_status = APM_BATTERY_STATUS_HIGH;
else if (info->battery_life > BATTERY_LOW_TRESHOLD)
info->battery_status = APM_BATTERY_STATUS_LOW;
else
info->battery_status = APM_BATTERY_STATUS_CRITICAL;
}
if (info->battery_life > BATTERY_HIGH_TRESHOLD)
info->battery_flag |= APM_BATTERY_FLAG_HIGH;
else if (info->battery_life > BATTERY_LOW_TRESHOLD)
info->battery_flag |= APM_BATTERY_FLAG_LOW;
else
info->battery_flag |= APM_BATTERY_FLAG_CRITICAL;
}
#else
#define palmte_get_power_status NULL
#endif
static struct tsc2102_config palmte_tsc2102_config = {
.use_internal = 0,
.monitor = TSC_BAT1 | TSC_AUX | TSC_TEMP,
.temp_at25c = { 2200, 2615 },
.apm_report = palmte_get_power_status,
.alsa_config = &palmte_alsa_config,
};
static struct omap_board_config_kernel palmte_config[] = {
{ OMAP_TAG_USB, &palmte_usb_config },
{ OMAP_TAG_MMC, &palmte_mmc_config },
{ OMAP_TAG_LCD, &palmte_lcd_config },
{ OMAP_TAG_UART, &palmte_uart_config },
};
static struct spi_board_info palmte_spi_info[] __initdata = {
{
.modalias = "tsc2102",
.bus_num = 2, /* uWire (officially) */
.chip_select = 0, /* As opposed to 3 */
.irq = OMAP_GPIO_IRQ(PALMTE_PINTDAV_GPIO),
.platform_data = &palmte_tsc2102_config,
.max_speed_hz = 8000000,
},
};
/* Periodically check for changes on important input pins */
struct timer_list palmte_pin_timer;
int prev_power, prev_headphones;
static void palmte_pin_handler(unsigned long data) {
int power, headphones;
power = !omap_get_gpio_datain(PALMTE_DC_GPIO);
headphones = omap_get_gpio_datain(PALMTE_HEADPHONES_GPIO);
if (power && !prev_power)
printk(KERN_INFO "PM: cable connected\n");
else if (!power && prev_power)
printk(KERN_INFO "PM: cable disconnected\n");
if (headphones && !prev_headphones) {
/* Headphones connected, disable speaker */
omap_set_gpio_dataout(PALMTE_SPEAKER_GPIO, 0);
printk(KERN_INFO "PM: speaker off\n");
} else if (!headphones && prev_headphones) {
/* Headphones unplugged, re-enable speaker */
omap_set_gpio_dataout(PALMTE_SPEAKER_GPIO, 1);
printk(KERN_INFO "PM: speaker on\n");
}
prev_power = power;
prev_headphones = headphones;
mod_timer(&palmte_pin_timer, jiffies + msecs_to_jiffies(500));
}
static void __init palmte_gpio_setup(void)
{
/* Set TSC2102 PINTDAV pin as input */
if (omap_request_gpio(PALMTE_PINTDAV_GPIO)) {
printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n");
return;
}
omap_set_gpio_direction(PALMTE_PINTDAV_GPIO, 1);
/* Monitor cable-connected signals */
if (omap_request_gpio(PALMTE_DC_GPIO) ||
omap_request_gpio(PALMTE_USB_OR_DC_GPIO) ||
omap_request_gpio(PALMTE_USBDETECT_GPIO)) {
printk(KERN_ERR "Could not reserve cable signal GPIO!\n");
return;
}
omap_set_gpio_direction(PALMTE_DC_GPIO, 1);
omap_set_gpio_direction(PALMTE_USB_OR_DC_GPIO, 1);
omap_set_gpio_direction(PALMTE_USBDETECT_GPIO, 1);
/* Set speaker-enable pin as output */
if (omap_request_gpio(PALMTE_SPEAKER_GPIO)) {
printk(KERN_ERR "Could not reserve speaker GPIO!\n");
return;
}
omap_set_gpio_direction(PALMTE_SPEAKER_GPIO, 0);
/* Monitor the headphones-connected signal */
if (omap_request_gpio(PALMTE_HEADPHONES_GPIO)) {
printk(KERN_ERR "Could not reserve headphones signal GPIO!\n");
return;
}
omap_set_gpio_direction(PALMTE_HEADPHONES_GPIO, 1);
prev_power = omap_get_gpio_datain(PALMTE_DC_GPIO);
prev_headphones = !omap_get_gpio_datain(PALMTE_HEADPHONES_GPIO);
setup_timer(&palmte_pin_timer, palmte_pin_handler, 0);
palmte_pin_handler(0);
}
static void __init omap_palmte_init(void)
{
omap_board_config = palmte_config;
omap_board_config_size = ARRAY_SIZE(palmte_config);
platform_add_devices(devices, ARRAY_SIZE(devices));
spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
omap_serial_init();
palmte_gpio_setup();
}
static void __init omap_palmte_map_io(void)
{
omap1_map_common_io();
}
MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
.phys_io = 0xfff00000,
.io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
.boot_params = 0x10000100,
.map_io = omap_palmte_map_io,
.init_irq = omap_palmte_init_irq,
.init_machine = omap_palmte_init,
.timer = &omap_timer,
MACHINE_END
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