mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-10-31 14:06:03 +00:00
288 lines
7.0 KiB
C
288 lines
7.0 KiB
C
/*
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* Hardware definitions for Palm Zire72
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*
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* Authors:
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* Vladimir "Farcaller" Pouzanov <farcaller@gmail.com>
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* Sergey Lapin <slapin@ossfans.org>
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* Alex Osborne <bobofdoom@gmail.com>
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* Jan Herman <2hp@seznam.cz>
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*
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* Rewrite for mainline:
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* Marek Vasut <marek.vasut@gmail.com>
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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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* (find more info at www.hackndev.com)
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*
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*/
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#include <linux/platform_device.h>
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#include <linux/sysdev.h>
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#include <linux/delay.h>
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#include <linux/irq.h>
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#include <linux/gpio_keys.h>
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#include <linux/input.h>
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#include <linux/pda_power.h>
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#include <linux/pwm_backlight.h>
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#include <linux/gpio.h>
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#include <linux/wm97xx.h>
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#include <linux/power_supply.h>
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#include <linux/usb/gpio_vbus.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 <mach/pxa27x.h>
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#include <mach/audio.h>
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#include <mach/palmz72.h>
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#include <mach/mmc.h>
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#include <mach/pxafb.h>
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#include <mach/irda.h>
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#include <plat/pxa27x_keypad.h>
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#include <mach/udc.h>
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#include <mach/palmasoc.h>
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#include <mach/palm27x.h>
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#include <mach/pm.h>
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#include "generic.h"
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#include "devices.h"
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/******************************************************************************
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* Pin configuration
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******************************************************************************/
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static unsigned long palmz72_pin_config[] __initdata = {
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/* MMC */
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GPIO32_MMC_CLK,
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GPIO92_MMC_DAT_0,
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GPIO109_MMC_DAT_1,
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GPIO110_MMC_DAT_2,
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GPIO111_MMC_DAT_3,
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GPIO112_MMC_CMD,
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GPIO14_GPIO, /* SD detect */
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GPIO115_GPIO, /* SD RO */
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GPIO98_GPIO, /* SD power */
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/* AC97 */
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GPIO28_AC97_BITCLK,
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GPIO29_AC97_SDATA_IN_0,
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GPIO30_AC97_SDATA_OUT,
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GPIO31_AC97_SYNC,
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GPIO89_AC97_SYSCLK,
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GPIO113_AC97_nRESET,
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/* IrDA */
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GPIO49_GPIO, /* ir disable */
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GPIO46_FICP_RXD,
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GPIO47_FICP_TXD,
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/* PWM */
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GPIO16_PWM0_OUT,
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/* USB */
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GPIO15_GPIO, /* usb detect */
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GPIO95_GPIO, /* usb pullup */
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/* Matrix keypad */
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GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
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GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
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GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
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GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
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GPIO103_KP_MKOUT_0,
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GPIO104_KP_MKOUT_1,
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GPIO105_KP_MKOUT_2,
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/* LCD */
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GPIOxx_LCD_TFT_16BPP,
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GPIO20_GPIO, /* bl power */
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GPIO21_GPIO, /* LCD border switch */
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GPIO22_GPIO, /* LCD border color */
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GPIO96_GPIO, /* lcd power */
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/* Misc. */
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GPIO0_GPIO | WAKEUP_ON_LEVEL_HIGH, /* power detect */
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GPIO88_GPIO, /* green led */
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GPIO27_GPIO, /* WM9712 IRQ */
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};
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/******************************************************************************
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* GPIO keyboard
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******************************************************************************/
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#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
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static unsigned int palmz72_matrix_keys[] = {
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KEY(0, 0, KEY_POWER),
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KEY(0, 1, KEY_F1),
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KEY(0, 2, KEY_ENTER),
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KEY(1, 0, KEY_F2),
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KEY(1, 1, KEY_F3),
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KEY(1, 2, KEY_F4),
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KEY(2, 0, KEY_UP),
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KEY(2, 2, KEY_DOWN),
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KEY(3, 0, KEY_RIGHT),
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KEY(3, 2, KEY_LEFT),
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};
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static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = {
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.matrix_key_rows = 4,
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.matrix_key_cols = 3,
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.matrix_key_map = palmz72_matrix_keys,
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.matrix_key_map_size = ARRAY_SIZE(palmz72_matrix_keys),
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.debounce_interval = 30,
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};
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static void __init palmz72_kpc_init(void)
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{
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pxa_set_keypad_info(&palmz72_keypad_platform_data);
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}
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#else
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static inline void palmz72_kpc_init(void) {}
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#endif
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/******************************************************************************
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* LEDs
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******************************************************************************/
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#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
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static struct gpio_led gpio_leds[] = {
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{
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.name = "palmz72:green:led",
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.default_trigger = "none",
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.gpio = GPIO_NR_PALMZ72_LED_GREEN,
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},
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};
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static struct gpio_led_platform_data gpio_led_info = {
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.leds = gpio_leds,
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.num_leds = ARRAY_SIZE(gpio_leds),
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};
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static struct platform_device palmz72_leds = {
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.name = "leds-gpio",
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.id = -1,
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.dev = {
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.platform_data = &gpio_led_info,
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}
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};
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static void __init palmz72_leds_init(void)
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{
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platform_device_register(&palmz72_leds);
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}
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#else
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static inline void palmz72_leds_init(void) {}
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#endif
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#ifdef CONFIG_PM
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/* We have some black magic here
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* PalmOS ROM on recover expects special struct physical address
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* to be transferred via PSPR. Using this struct PalmOS restores
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* its state after sleep. As for Linux, we need to setup it the
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* same way. More than that, PalmOS ROM changes some values in memory.
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* For now only one location is found, which needs special treatment.
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* Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people
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* for reading backtraces for me :)
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*/
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#define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050)
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static struct palmz72_resume_info palmz72_resume_info = {
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.magic0 = 0xb4e6,
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.magic1 = 1,
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/* reset state, MMU off etc */
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.arm_control = 0,
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.aux_control = 0,
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.ttb = 0,
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.domain_access = 0,
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.process_id = 0,
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};
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static unsigned long store_ptr;
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/* sys_device for Palm Zire 72 PM */
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static int palmz72_pm_suspend(struct sys_device *dev, pm_message_t msg)
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{
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/* setup the resume_info struct for the original bootloader */
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palmz72_resume_info.resume_addr = (u32) cpu_resume;
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/* Storing memory touched by ROM */
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store_ptr = *PALMZ72_SAVE_DWORD;
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/* Setting PSPR to a proper value */
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PSPR = virt_to_phys(&palmz72_resume_info);
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return 0;
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}
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static int palmz72_pm_resume(struct sys_device *dev)
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{
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*PALMZ72_SAVE_DWORD = store_ptr;
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return 0;
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}
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static struct sysdev_class palmz72_pm_sysclass = {
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.name = "palmz72_pm",
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.suspend = palmz72_pm_suspend,
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.resume = palmz72_pm_resume,
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};
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static struct sys_device palmz72_pm_device = {
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.cls = &palmz72_pm_sysclass,
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};
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static int __init palmz72_pm_init(void)
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{
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int ret = -ENODEV;
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if (machine_is_palmz72()) {
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ret = sysdev_class_register(&palmz72_pm_sysclass);
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if (ret == 0)
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ret = sysdev_register(&palmz72_pm_device);
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}
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return ret;
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}
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device_initcall(palmz72_pm_init);
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#endif
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/******************************************************************************
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* Machine init
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******************************************************************************/
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static void __init palmz72_init(void)
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{
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pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));
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pxa_set_ffuart_info(NULL);
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pxa_set_btuart_info(NULL);
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pxa_set_stuart_info(NULL);
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palm27x_mmc_init(GPIO_NR_PALMZ72_SD_DETECT_N, GPIO_NR_PALMZ72_SD_RO,
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GPIO_NR_PALMZ72_SD_POWER_N, 1);
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palm27x_lcd_init(-1, &palm_320x320_lcd_mode);
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palm27x_udc_init(GPIO_NR_PALMZ72_USB_DETECT_N,
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GPIO_NR_PALMZ72_USB_PULLUP, 0);
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palm27x_irda_init(GPIO_NR_PALMZ72_IR_DISABLE);
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palm27x_ac97_init(PALMZ72_BAT_MIN_VOLTAGE, PALMZ72_BAT_MAX_VOLTAGE,
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-1, 113);
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palm27x_pwm_init(-1, -1);
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palm27x_power_init(-1, -1);
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palm27x_pmic_init();
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palmz72_kpc_init();
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palmz72_leds_init();
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}
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MACHINE_START(PALMZ72, "Palm Zire72")
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.boot_params = 0xa0000100,
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.map_io = pxa27x_map_io,
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.init_irq = pxa27x_init_irq,
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.timer = &pxa_timer,
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.init_machine = palmz72_init
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MACHINE_END
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