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499 lines
12 KiB
499 lines
12 KiB
/*
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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_batt.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 <mach/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/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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* SD/MMC card controller
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******************************************************************************/
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/* SD_POWER is not actually power, but it is more like chip
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* select, i.e. it is inverted */
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static struct pxamci_platform_data palmz72_mci_platform_data = {
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.ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34,
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.gpio_card_detect = GPIO_NR_PALMZ72_SD_DETECT_N,
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.gpio_card_ro = GPIO_NR_PALMZ72_SD_RO,
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.gpio_power = GPIO_NR_PALMZ72_SD_POWER_N,
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.gpio_power_invert = 1,
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};
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/******************************************************************************
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* GPIO keyboard
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******************************************************************************/
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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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/******************************************************************************
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* Backlight
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******************************************************************************/
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static int palmz72_backlight_init(struct device *dev)
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{
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int ret;
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ret = gpio_request(GPIO_NR_PALMZ72_BL_POWER, "BL POWER");
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if (ret)
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goto err;
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ret = gpio_direction_output(GPIO_NR_PALMZ72_BL_POWER, 0);
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if (ret)
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goto err2;
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ret = gpio_request(GPIO_NR_PALMZ72_LCD_POWER, "LCD POWER");
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if (ret)
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goto err2;
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ret = gpio_direction_output(GPIO_NR_PALMZ72_LCD_POWER, 0);
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if (ret)
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goto err3;
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return 0;
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err3:
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gpio_free(GPIO_NR_PALMZ72_LCD_POWER);
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err2:
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gpio_free(GPIO_NR_PALMZ72_BL_POWER);
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err:
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return ret;
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}
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static int palmz72_backlight_notify(struct device *dev, int brightness)
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{
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gpio_set_value(GPIO_NR_PALMZ72_BL_POWER, brightness);
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gpio_set_value(GPIO_NR_PALMZ72_LCD_POWER, brightness);
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return brightness;
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}
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static void palmz72_backlight_exit(struct device *dev)
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{
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gpio_free(GPIO_NR_PALMZ72_BL_POWER);
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gpio_free(GPIO_NR_PALMZ72_LCD_POWER);
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}
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static struct platform_pwm_backlight_data palmz72_backlight_data = {
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.pwm_id = 0,
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.max_brightness = PALMZ72_MAX_INTENSITY,
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.dft_brightness = PALMZ72_MAX_INTENSITY,
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.pwm_period_ns = PALMZ72_PERIOD_NS,
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.init = palmz72_backlight_init,
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.notify = palmz72_backlight_notify,
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.exit = palmz72_backlight_exit,
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};
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static struct platform_device palmz72_backlight = {
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.name = "pwm-backlight",
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.dev = {
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.parent = &pxa27x_device_pwm0.dev,
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.platform_data = &palmz72_backlight_data,
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},
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};
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/******************************************************************************
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* IrDA
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******************************************************************************/
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static struct pxaficp_platform_data palmz72_ficp_platform_data = {
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.gpio_pwdown = GPIO_NR_PALMZ72_IR_DISABLE,
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.transceiver_cap = IR_SIRMODE | IR_OFF,
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};
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/******************************************************************************
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* LEDs
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******************************************************************************/
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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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/******************************************************************************
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* UDC
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******************************************************************************/
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static struct gpio_vbus_mach_info palmz72_udc_info = {
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.gpio_vbus = GPIO_NR_PALMZ72_USB_DETECT_N,
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.gpio_pullup = GPIO_NR_PALMZ72_USB_PULLUP,
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};
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static struct platform_device palmz72_gpio_vbus = {
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.name = "gpio-vbus",
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.id = -1,
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.dev = {
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.platform_data = &palmz72_udc_info,
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},
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};
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/******************************************************************************
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* Power supply
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******************************************************************************/
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static int power_supply_init(struct device *dev)
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{
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int ret;
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ret = gpio_request(GPIO_NR_PALMZ72_POWER_DETECT, "CABLE_STATE_AC");
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if (ret)
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goto err1;
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ret = gpio_direction_input(GPIO_NR_PALMZ72_POWER_DETECT);
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if (ret)
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goto err2;
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ret = gpio_request(GPIO_NR_PALMZ72_USB_DETECT_N, "CABLE_STATE_USB");
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if (ret)
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goto err2;
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ret = gpio_direction_input(GPIO_NR_PALMZ72_USB_DETECT_N);
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if (ret)
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goto err3;
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return 0;
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err3:
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gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N);
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err2:
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gpio_free(GPIO_NR_PALMZ72_POWER_DETECT);
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err1:
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return ret;
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}
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static int palmz72_is_ac_online(void)
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{
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return gpio_get_value(GPIO_NR_PALMZ72_POWER_DETECT);
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}
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static int palmz72_is_usb_online(void)
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{
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return !gpio_get_value(GPIO_NR_PALMZ72_USB_DETECT_N);
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}
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static void power_supply_exit(struct device *dev)
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{
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gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N);
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gpio_free(GPIO_NR_PALMZ72_POWER_DETECT);
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}
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static char *palmz72_supplicants[] = {
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"main-battery",
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};
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static struct pda_power_pdata power_supply_info = {
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.init = power_supply_init,
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.is_ac_online = palmz72_is_ac_online,
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.is_usb_online = palmz72_is_usb_online,
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.exit = power_supply_exit,
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.supplied_to = palmz72_supplicants,
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.num_supplicants = ARRAY_SIZE(palmz72_supplicants),
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};
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static struct platform_device power_supply = {
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.name = "pda-power",
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.id = -1,
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.dev = {
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.platform_data = &power_supply_info,
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},
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};
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/******************************************************************************
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* WM97xx battery
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******************************************************************************/
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static struct wm97xx_batt_info wm97xx_batt_pdata = {
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.batt_aux = WM97XX_AUX_ID3,
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.temp_aux = WM97XX_AUX_ID2,
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.charge_gpio = -1,
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.max_voltage = PALMZ72_BAT_MAX_VOLTAGE,
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.min_voltage = PALMZ72_BAT_MIN_VOLTAGE,
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.batt_mult = 1000,
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.batt_div = 414,
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.temp_mult = 1,
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.temp_div = 1,
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.batt_tech = POWER_SUPPLY_TECHNOLOGY_LIPO,
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.batt_name = "main-batt",
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};
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/******************************************************************************
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* aSoC audio
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******************************************************************************/
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static struct platform_device palmz72_asoc = {
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.name = "palm27x-asoc",
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.id = -1,
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};
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/******************************************************************************
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* Framebuffer
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******************************************************************************/
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static struct pxafb_mode_info palmz72_lcd_modes[] = {
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{
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.pixclock = 115384,
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.xres = 320,
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.yres = 320,
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.bpp = 16,
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.left_margin = 27,
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.right_margin = 7,
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.upper_margin = 7,
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.lower_margin = 8,
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.hsync_len = 6,
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.vsync_len = 1,
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},
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};
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static struct pxafb_mach_info palmz72_lcd_screen = {
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.modes = palmz72_lcd_modes,
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.num_modes = ARRAY_SIZE(palmz72_lcd_modes),
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.lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
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};
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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) pxa_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 struct platform_device *devices[] __initdata = {
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&palmz72_backlight,
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&palmz72_leds,
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&palmz72_asoc,
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&power_supply,
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&palmz72_gpio_vbus,
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};
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/* setup udc GPIOs initial state */
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static void __init palmz72_udc_init(void)
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{
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if (!gpio_request(GPIO_NR_PALMZ72_USB_PULLUP, "USB Pullup")) {
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gpio_direction_output(GPIO_NR_PALMZ72_USB_PULLUP, 0);
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gpio_free(GPIO_NR_PALMZ72_USB_PULLUP);
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}
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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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set_pxa_fb_info(&palmz72_lcd_screen);
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pxa_set_mci_info(&palmz72_mci_platform_data);
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palmz72_udc_init();
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pxa_set_ac97_info(NULL);
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pxa_set_ficp_info(&palmz72_ficp_platform_data);
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pxa_set_keypad_info(&palmz72_keypad_platform_data);
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wm97xx_bat_set_pdata(&wm97xx_batt_pdata);
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platform_add_devices(devices, ARRAY_SIZE(devices));
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}
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MACHINE_START(PALMZ72, "Palm Zire72")
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.phys_io = 0x40000000,
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.io_pg_offst = io_p2v(0x40000000),
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.boot_params = 0xa0000100,
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.map_io = pxa_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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