379 lines
9.3 KiB
C
379 lines
9.3 KiB
C
/*
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* linux/arch/arm/mach-omap1/board-palmte.c
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*
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* Modified from board-generic.c
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*
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* Support for the Palm Tungsten E PDA.
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*
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* Original version : Laurent Gonzalez
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*
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* Maintainers : http://palmtelinux.sf.net
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* palmtelinux-developpers@lists.sf.net
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*
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* Copyright (c) 2006 Andrzej Zaborowski <balrog@zabor.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/input.h>
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#include <linux/platform_device.h>
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#include <linux/mtd/mtd.h>
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#include <linux/mtd/partitions.h>
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#include <linux/spi/spi.h>
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#include <linux/interrupt.h>
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#include <linux/apm-emulation.h>
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#include <mach/hardware.h>
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#include <asm/mach-types.h>
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#include <asm/mach/arch.h>
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#include <asm/mach/map.h>
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#include <asm/mach/flash.h>
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#include <mach/gpio.h>
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#include <mach/mux.h>
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#include <mach/usb.h>
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#include <mach/tc.h>
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#include <mach/dma.h>
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#include <mach/board.h>
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#include <mach/irda.h>
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#include <mach/keypad.h>
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#include <mach/common.h>
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#define PALMTE_USBDETECT_GPIO 0
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#define PALMTE_USB_OR_DC_GPIO 1
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#define PALMTE_TSC_GPIO 4
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#define PALMTE_PINTDAV_GPIO 6
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#define PALMTE_MMC_WP_GPIO 8
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#define PALMTE_MMC_POWER_GPIO 9
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#define PALMTE_HDQ_GPIO 11
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#define PALMTE_HEADPHONES_GPIO 14
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#define PALMTE_SPEAKER_GPIO 15
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#define PALMTE_DC_GPIO OMAP_MPUIO(2)
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#define PALMTE_MMC_SWITCH_GPIO OMAP_MPUIO(4)
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#define PALMTE_MMC1_GPIO OMAP_MPUIO(6)
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#define PALMTE_MMC2_GPIO OMAP_MPUIO(7)
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#define PALMTE_MMC3_GPIO OMAP_MPUIO(11)
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static void __init omap_palmte_init_irq(void)
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{
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omap1_init_common_hw();
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omap_init_irq();
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omap_gpio_init();
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}
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static const int palmte_keymap[] = {
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KEY(0, 0, KEY_F1), /* Calendar */
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KEY(0, 1, KEY_F2), /* Contacts */
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KEY(0, 2, KEY_F3), /* Tasks List */
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KEY(0, 3, KEY_F4), /* Note Pad */
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KEY(0, 4, KEY_POWER),
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KEY(1, 0, KEY_LEFT),
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KEY(1, 1, KEY_DOWN),
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KEY(1, 2, KEY_UP),
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KEY(1, 3, KEY_RIGHT),
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KEY(1, 4, KEY_ENTER),
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0,
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};
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static struct omap_kp_platform_data palmte_kp_data = {
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.rows = 8,
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.cols = 8,
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.keymap = (int *) palmte_keymap,
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.rep = 1,
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.delay = 12,
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};
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static struct resource palmte_kp_resources[] = {
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[0] = {
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.start = INT_KEYBOARD,
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.end = INT_KEYBOARD,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device palmte_kp_device = {
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.name = "omap-keypad",
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.id = -1,
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.dev = {
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.platform_data = &palmte_kp_data,
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},
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.num_resources = ARRAY_SIZE(palmte_kp_resources),
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.resource = palmte_kp_resources,
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};
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static struct mtd_partition palmte_rom_partitions[] = {
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/* PalmOS "Small ROM", contains the bootloader and the debugger */
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{
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.name = "smallrom",
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.offset = 0,
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.size = 0xa000,
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.mask_flags = MTD_WRITEABLE,
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},
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/* PalmOS "Big ROM", a filesystem with all the OS code and data */
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{
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.name = "bigrom",
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.offset = SZ_128K,
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/*
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* 0x5f0000 bytes big in the multi-language ("EFIGS") version,
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* 0x7b0000 bytes in the English-only ("enUS") version.
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*/
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.size = 0x7b0000,
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.mask_flags = MTD_WRITEABLE,
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},
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};
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static struct flash_platform_data palmte_rom_data = {
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.map_name = "map_rom",
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.width = 2,
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.parts = palmte_rom_partitions,
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.nr_parts = ARRAY_SIZE(palmte_rom_partitions),
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};
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static struct resource palmte_rom_resource = {
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.start = OMAP_CS0_PHYS,
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.end = OMAP_CS0_PHYS + SZ_8M - 1,
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.flags = IORESOURCE_MEM,
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};
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static struct platform_device palmte_rom_device = {
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.name = "omapflash",
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.id = -1,
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.dev = {
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.platform_data = &palmte_rom_data,
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},
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.num_resources = 1,
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.resource = &palmte_rom_resource,
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};
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static struct platform_device palmte_lcd_device = {
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.name = "lcd_palmte",
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.id = -1,
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};
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static struct omap_backlight_config palmte_backlight_config = {
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.default_intensity = 0xa0,
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};
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static struct platform_device palmte_backlight_device = {
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.name = "omap-bl",
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.id = -1,
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.dev = {
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.platform_data = &palmte_backlight_config,
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},
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};
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static struct omap_irda_config palmte_irda_config = {
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.transceiver_cap = IR_SIRMODE,
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.rx_channel = OMAP_DMA_UART3_RX,
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.tx_channel = OMAP_DMA_UART3_TX,
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.dest_start = UART3_THR,
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.src_start = UART3_RHR,
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.tx_trigger = 0,
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.rx_trigger = 0,
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};
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static struct resource palmte_irda_resources[] = {
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[0] = {
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.start = INT_UART3,
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.end = INT_UART3,
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.flags = IORESOURCE_IRQ,
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},
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};
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static struct platform_device palmte_irda_device = {
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.name = "omapirda",
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.id = -1,
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.dev = {
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.platform_data = &palmte_irda_config,
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},
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.num_resources = ARRAY_SIZE(palmte_irda_resources),
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.resource = palmte_irda_resources,
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};
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static struct platform_device *palmte_devices[] __initdata = {
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&palmte_rom_device,
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&palmte_kp_device,
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&palmte_lcd_device,
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&palmte_backlight_device,
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&palmte_irda_device,
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};
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static struct omap_usb_config palmte_usb_config __initdata = {
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.register_dev = 1, /* Mini-B only receptacle */
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.hmc_mode = 0,
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.pins[0] = 2,
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};
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static struct omap_lcd_config palmte_lcd_config __initdata = {
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.ctrl_name = "internal",
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};
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#ifdef CONFIG_APM
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/*
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* Values measured in 10 minute intervals averaged over 10 samples.
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* May differ slightly from device to device but should be accurate
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* enough to give basic idea of battery life left and trigger
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* potential alerts.
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*/
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static const int palmte_battery_sample[] = {
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2194, 2157, 2138, 2120,
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2104, 2089, 2075, 2061,
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2048, 2038, 2026, 2016,
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2008, 1998, 1989, 1980,
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1970, 1958, 1945, 1928,
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1910, 1888, 1860, 1827,
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1791, 1751, 1709, 1656,
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};
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#define INTERVAL 10
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#define BATTERY_HIGH_TRESHOLD 66
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#define BATTERY_LOW_TRESHOLD 33
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static void palmte_get_power_status(struct apm_power_info *info, int *battery)
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{
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int charging, batt, hi, lo, mid;
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charging = !gpio_get_value(PALMTE_DC_GPIO);
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batt = battery[0];
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if (charging)
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batt -= 60;
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hi = ARRAY_SIZE(palmte_battery_sample);
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lo = 0;
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info->battery_flag = 0;
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info->units = APM_UNITS_MINS;
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if (batt > palmte_battery_sample[lo]) {
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info->battery_life = 100;
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info->time = INTERVAL * ARRAY_SIZE(palmte_battery_sample);
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} else if (batt <= palmte_battery_sample[hi - 1]) {
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info->battery_life = 0;
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info->time = 0;
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} else {
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while (hi > lo + 1) {
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mid = (hi + lo) >> 1;
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if (batt <= palmte_battery_sample[mid])
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lo = mid;
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else
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hi = mid;
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}
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mid = palmte_battery_sample[lo] - palmte_battery_sample[hi];
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hi = palmte_battery_sample[lo] - batt;
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info->battery_life = 100 - (100 * lo + 100 * hi / mid) /
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ARRAY_SIZE(palmte_battery_sample);
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info->time = INTERVAL * (ARRAY_SIZE(palmte_battery_sample) -
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lo) - INTERVAL * hi / mid;
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}
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if (charging) {
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info->ac_line_status = APM_AC_ONLINE;
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info->battery_status = APM_BATTERY_STATUS_CHARGING;
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info->battery_flag |= APM_BATTERY_FLAG_CHARGING;
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} else {
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info->ac_line_status = APM_AC_OFFLINE;
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if (info->battery_life > BATTERY_HIGH_TRESHOLD)
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info->battery_status = APM_BATTERY_STATUS_HIGH;
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else if (info->battery_life > BATTERY_LOW_TRESHOLD)
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info->battery_status = APM_BATTERY_STATUS_LOW;
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else
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info->battery_status = APM_BATTERY_STATUS_CRITICAL;
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}
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if (info->battery_life > BATTERY_HIGH_TRESHOLD)
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info->battery_flag |= APM_BATTERY_FLAG_HIGH;
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else if (info->battery_life > BATTERY_LOW_TRESHOLD)
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info->battery_flag |= APM_BATTERY_FLAG_LOW;
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else
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info->battery_flag |= APM_BATTERY_FLAG_CRITICAL;
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}
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#else
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#define palmte_get_power_status NULL
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#endif
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static struct omap_board_config_kernel palmte_config[] __initdata = {
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{ OMAP_TAG_LCD, &palmte_lcd_config },
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};
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static struct spi_board_info palmte_spi_info[] __initdata = {
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{
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.modalias = "tsc2102",
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.bus_num = 2, /* uWire (officially) */
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.chip_select = 0, /* As opposed to 3 */
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.irq = OMAP_GPIO_IRQ(PALMTE_PINTDAV_GPIO),
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.max_speed_hz = 8000000,
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},
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};
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static void palmte_headphones_detect(void *data, int state)
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{
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if (state) {
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/* Headphones connected, disable speaker */
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gpio_set_value(PALMTE_SPEAKER_GPIO, 0);
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printk(KERN_INFO "PM: speaker off\n");
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} else {
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/* Headphones unplugged, re-enable speaker */
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gpio_set_value(PALMTE_SPEAKER_GPIO, 1);
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printk(KERN_INFO "PM: speaker on\n");
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}
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}
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static void __init palmte_misc_gpio_setup(void)
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{
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/* Set TSC2102 PINTDAV pin as input (used by TSC2102 driver) */
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if (gpio_request(PALMTE_PINTDAV_GPIO, "TSC2102 PINTDAV") < 0) {
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printk(KERN_ERR "Could not reserve PINTDAV GPIO!\n");
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return;
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}
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gpio_direction_input(PALMTE_PINTDAV_GPIO);
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/* Set USB-or-DC-IN pin as input (unused) */
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if (gpio_request(PALMTE_USB_OR_DC_GPIO, "USB/DC-IN") < 0) {
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printk(KERN_ERR "Could not reserve cable signal GPIO!\n");
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return;
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}
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gpio_direction_input(PALMTE_USB_OR_DC_GPIO);
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}
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static void __init omap_palmte_init(void)
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{
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/* mux pins for uarts */
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omap_cfg_reg(UART1_TX);
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omap_cfg_reg(UART1_RTS);
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omap_cfg_reg(UART2_TX);
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omap_cfg_reg(UART2_RTS);
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omap_cfg_reg(UART3_TX);
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omap_cfg_reg(UART3_RX);
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omap_board_config = palmte_config;
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omap_board_config_size = ARRAY_SIZE(palmte_config);
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platform_add_devices(palmte_devices, ARRAY_SIZE(palmte_devices));
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spi_register_board_info(palmte_spi_info, ARRAY_SIZE(palmte_spi_info));
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palmte_misc_gpio_setup();
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omap_serial_init();
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omap_usb_init(&palmte_usb_config);
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omap_register_i2c_bus(1, 100, NULL, 0);
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}
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static void __init omap_palmte_map_io(void)
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{
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omap1_map_common_io();
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}
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MACHINE_START(OMAP_PALMTE, "OMAP310 based Palm Tungsten E")
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.phys_io = 0xfff00000,
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.io_pg_offst = ((0xfef00000) >> 18) & 0xfffc,
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.boot_params = 0x10000100,
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.map_io = omap_palmte_map_io,
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.init_irq = omap_palmte_init_irq,
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.init_machine = omap_palmte_init,
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.timer = &omap_timer,
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MACHINE_END
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