/* * Hardware definitions for Palm Zire72 * * Authors: * Vladimir "Farcaller" Pouzanov <farcaller@gmail.com> * Sergey Lapin <slapin@ossfans.org> * Alex Osborne <bobofdoom@gmail.com> * Jan Herman <2hp@seznam.cz> * * Rewrite for mainline: * Marek Vasut <marek.vasut@gmail.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. * * (find more info at www.hackndev.com) * */ #include <linux/platform_device.h> #include <linux/sysdev.h> #include <linux/delay.h> #include <linux/irq.h> #include <linux/gpio_keys.h> #include <linux/input.h> #include <linux/pda_power.h> #include <linux/pwm_backlight.h> #include <linux/gpio.h> #include <linux/power_supply.h> #include <asm/mach-types.h> #include <asm/mach/arch.h> #include <asm/mach/map.h> #include <mach/audio.h> #include <mach/palmz72.h> #include <mach/mmc.h> #include <mach/pxafb.h> #include <mach/pxa-regs.h> #include <mach/pxa2xx-regs.h> #include <mach/mfp-pxa27x.h> #include <mach/irda.h> #include <mach/pxa27x_keypad.h> #include <mach/udc.h> #include <mach/pm.h> #include "generic.h" #include "devices.h" /****************************************************************************** * Pin configuration ******************************************************************************/ static unsigned long palmz72_pin_config[] __initdata = { /* MMC */ GPIO32_MMC_CLK, GPIO92_MMC_DAT_0, GPIO109_MMC_DAT_1, GPIO110_MMC_DAT_2, GPIO111_MMC_DAT_3, GPIO112_MMC_CMD, GPIO14_GPIO, /* SD detect */ GPIO115_GPIO, /* SD RO */ GPIO98_GPIO, /* SD power */ /* AC97 */ GPIO28_AC97_BITCLK, GPIO29_AC97_SDATA_IN_0, GPIO30_AC97_SDATA_OUT, GPIO31_AC97_SYNC, /* IrDA */ GPIO49_GPIO, /* ir disable */ GPIO46_FICP_RXD, GPIO47_FICP_TXD, /* PWM */ GPIO16_PWM0_OUT, /* USB */ GPIO15_GPIO, /* usb detect */ GPIO12_GPIO, /* usb pullup */ GPIO95_GPIO, /* usb power */ /* Matrix keypad */ GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH, GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH, GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH, GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH, GPIO103_KP_MKOUT_0, GPIO104_KP_MKOUT_1, GPIO105_KP_MKOUT_2, /* LCD */ GPIO58_LCD_LDD_0, GPIO59_LCD_LDD_1, GPIO60_LCD_LDD_2, GPIO61_LCD_LDD_3, GPIO62_LCD_LDD_4, GPIO63_LCD_LDD_5, GPIO64_LCD_LDD_6, GPIO65_LCD_LDD_7, GPIO66_LCD_LDD_8, GPIO67_LCD_LDD_9, GPIO68_LCD_LDD_10, GPIO69_LCD_LDD_11, GPIO70_LCD_LDD_12, GPIO71_LCD_LDD_13, GPIO72_LCD_LDD_14, GPIO73_LCD_LDD_15, GPIO74_LCD_FCLK, GPIO75_LCD_LCLK, GPIO76_LCD_PCLK, GPIO77_LCD_BIAS, GPIO20_GPIO, /* bl power */ GPIO21_GPIO, /* LCD border switch */ GPIO22_GPIO, /* LCD border color */ GPIO96_GPIO, /* lcd power */ /* Misc. */ GPIO0_GPIO | WAKEUP_ON_LEVEL_HIGH, /* power detect */ GPIO88_GPIO, /* green led */ GPIO27_GPIO, /* WM9712 IRQ */ }; /****************************************************************************** * SD/MMC card controller ******************************************************************************/ static int palmz72_mci_init(struct device *dev, irq_handler_t palmz72_detect_int, void *data) { int err = 0; /* Setup an interrupt for detecting card insert/remove events */ err = gpio_request(GPIO_NR_PALMZ72_SD_DETECT_N, "SD IRQ"); if (err) goto err; err = gpio_direction_input(GPIO_NR_PALMZ72_SD_DETECT_N); if (err) goto err2; err = request_irq(gpio_to_irq(GPIO_NR_PALMZ72_SD_DETECT_N), palmz72_detect_int, IRQF_DISABLED | IRQF_SAMPLE_RANDOM | IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING, "SD/MMC card detect", data); if (err) { printk(KERN_ERR "%s: cannot request SD/MMC card detect IRQ\n", __func__); goto err2; } /* SD_POWER is not actually power, but it is more like chip * select, i.e. it is inverted */ err = gpio_request(GPIO_NR_PALMZ72_SD_POWER_N, "SD_POWER"); if (err) goto err3; err = gpio_direction_output(GPIO_NR_PALMZ72_SD_POWER_N, 0); if (err) goto err4; err = gpio_request(GPIO_NR_PALMZ72_SD_RO, "SD_RO"); if (err) goto err4; err = gpio_direction_input(GPIO_NR_PALMZ72_SD_RO); if (err) goto err5; printk(KERN_DEBUG "%s: irq registered\n", __func__); return 0; err5: gpio_free(GPIO_NR_PALMZ72_SD_RO); err4: gpio_free(GPIO_NR_PALMZ72_SD_POWER_N); err3: free_irq(gpio_to_irq(GPIO_NR_PALMZ72_SD_DETECT_N), data); err2: gpio_free(GPIO_NR_PALMZ72_SD_DETECT_N); err: return err; } static void palmz72_mci_exit(struct device *dev, void *data) { gpio_free(GPIO_NR_PALMZ72_SD_POWER_N); free_irq(gpio_to_irq(GPIO_NR_PALMZ72_SD_DETECT_N), data); gpio_free(GPIO_NR_PALMZ72_SD_DETECT_N); gpio_free(GPIO_NR_PALMZ72_SD_RO); } static void palmz72_mci_power(struct device *dev, unsigned int vdd) { struct pxamci_platform_data *p_d = dev->platform_data; if (p_d->ocr_mask & (1 << vdd)) gpio_set_value(GPIO_NR_PALMZ72_SD_POWER_N, 0); else gpio_set_value(GPIO_NR_PALMZ72_SD_POWER_N, 1); } static int palmz72_mci_ro(struct device *dev) { return gpio_get_value(GPIO_NR_PALMZ72_SD_RO); } static struct pxamci_platform_data palmz72_mci_platform_data = { .ocr_mask = MMC_VDD_32_33 | MMC_VDD_33_34, .setpower = palmz72_mci_power, .get_ro = palmz72_mci_ro, .init = palmz72_mci_init, .exit = palmz72_mci_exit, }; /****************************************************************************** * GPIO keyboard ******************************************************************************/ static unsigned int palmz72_matrix_keys[] = { KEY(0, 0, KEY_POWER), KEY(0, 1, KEY_F1), KEY(0, 2, KEY_ENTER), KEY(1, 0, KEY_F2), KEY(1, 1, KEY_F3), KEY(1, 2, KEY_F4), KEY(2, 0, KEY_UP), KEY(2, 2, KEY_DOWN), KEY(3, 0, KEY_RIGHT), KEY(3, 2, KEY_LEFT), }; static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = { .matrix_key_rows = 4, .matrix_key_cols = 3, .matrix_key_map = palmz72_matrix_keys, .matrix_key_map_size = ARRAY_SIZE(palmz72_matrix_keys), .debounce_interval = 30, }; /****************************************************************************** * Backlight ******************************************************************************/ static int palmz72_backlight_init(struct device *dev) { int ret; ret = gpio_request(GPIO_NR_PALMZ72_BL_POWER, "BL POWER"); if (ret) goto err; ret = gpio_direction_output(GPIO_NR_PALMZ72_BL_POWER, 0); if (ret) goto err2; ret = gpio_request(GPIO_NR_PALMZ72_LCD_POWER, "LCD POWER"); if (ret) goto err2; ret = gpio_direction_output(GPIO_NR_PALMZ72_LCD_POWER, 0); if (ret) goto err3; return 0; err3: gpio_free(GPIO_NR_PALMZ72_LCD_POWER); err2: gpio_free(GPIO_NR_PALMZ72_BL_POWER); err: return ret; } static int palmz72_backlight_notify(int brightness) { gpio_set_value(GPIO_NR_PALMZ72_BL_POWER, brightness); gpio_set_value(GPIO_NR_PALMZ72_LCD_POWER, brightness); return brightness; } static void palmz72_backlight_exit(struct device *dev) { gpio_free(GPIO_NR_PALMZ72_BL_POWER); gpio_free(GPIO_NR_PALMZ72_LCD_POWER); } static struct platform_pwm_backlight_data palmz72_backlight_data = { .pwm_id = 0, .max_brightness = PALMZ72_MAX_INTENSITY, .dft_brightness = PALMZ72_MAX_INTENSITY, .pwm_period_ns = PALMZ72_PERIOD_NS, .init = palmz72_backlight_init, .notify = palmz72_backlight_notify, .exit = palmz72_backlight_exit, }; static struct platform_device palmz72_backlight = { .name = "pwm-backlight", .dev = { .parent = &pxa27x_device_pwm0.dev, .platform_data = &palmz72_backlight_data, }, }; /****************************************************************************** * IrDA ******************************************************************************/ static int palmz72_irda_startup(struct device *dev) { int err; err = gpio_request(GPIO_NR_PALMZ72_IR_DISABLE, "IR DISABLE"); if (err) goto err; err = gpio_direction_output(GPIO_NR_PALMZ72_IR_DISABLE, 1); if (err) gpio_free(GPIO_NR_PALMZ72_IR_DISABLE); err: return err; } static void palmz72_irda_shutdown(struct device *dev) { gpio_free(GPIO_NR_PALMZ72_IR_DISABLE); } static void palmz72_irda_transceiver_mode(struct device *dev, int mode) { gpio_set_value(GPIO_NR_PALMZ72_IR_DISABLE, mode & IR_OFF); pxa2xx_transceiver_mode(dev, mode); } static struct pxaficp_platform_data palmz72_ficp_platform_data = { .startup = palmz72_irda_startup, .shutdown = palmz72_irda_shutdown, .transceiver_cap = IR_SIRMODE | IR_OFF, .transceiver_mode = palmz72_irda_transceiver_mode, }; /****************************************************************************** * LEDs ******************************************************************************/ static struct gpio_led gpio_leds[] = { { .name = "palmz72:green:led", .default_trigger = "none", .gpio = GPIO_NR_PALMZ72_LED_GREEN, }, }; static struct gpio_led_platform_data gpio_led_info = { .leds = gpio_leds, .num_leds = ARRAY_SIZE(gpio_leds), }; static struct platform_device palmz72_leds = { .name = "leds-gpio", .id = -1, .dev = { .platform_data = &gpio_led_info, } }; /****************************************************************************** * Power supply ******************************************************************************/ static int power_supply_init(struct device *dev) { int ret; ret = gpio_request(GPIO_NR_PALMZ72_POWER_DETECT, "CABLE_STATE_AC"); if (ret) goto err1; ret = gpio_direction_input(GPIO_NR_PALMZ72_POWER_DETECT); if (ret) goto err2; ret = gpio_request(GPIO_NR_PALMZ72_USB_DETECT_N, "CABLE_STATE_USB"); if (ret) goto err2; ret = gpio_direction_input(GPIO_NR_PALMZ72_USB_DETECT_N); if (ret) goto err3; return 0; err3: gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N); err2: gpio_free(GPIO_NR_PALMZ72_POWER_DETECT); err1: return ret; } static int palmz72_is_ac_online(void) { return gpio_get_value(GPIO_NR_PALMZ72_POWER_DETECT); } static int palmz72_is_usb_online(void) { return !gpio_get_value(GPIO_NR_PALMZ72_USB_DETECT_N); } static void power_supply_exit(struct device *dev) { gpio_free(GPIO_NR_PALMZ72_USB_DETECT_N); gpio_free(GPIO_NR_PALMZ72_POWER_DETECT); } static char *palmz72_supplicants[] = { "main-battery", }; static struct pda_power_pdata power_supply_info = { .init = power_supply_init, .is_ac_online = palmz72_is_ac_online, .is_usb_online = palmz72_is_usb_online, .exit = power_supply_exit, .supplied_to = palmz72_supplicants, .num_supplicants = ARRAY_SIZE(palmz72_supplicants), }; static struct platform_device power_supply = { .name = "pda-power", .id = -1, .dev = { .platform_data = &power_supply_info, }, }; /****************************************************************************** * Framebuffer ******************************************************************************/ static struct pxafb_mode_info palmz72_lcd_modes[] = { { .pixclock = 115384, .xres = 320, .yres = 320, .bpp = 16, .left_margin = 27, .right_margin = 7, .upper_margin = 7, .lower_margin = 8, .hsync_len = 6, .vsync_len = 1, }, }; static struct pxafb_mach_info palmz72_lcd_screen = { .modes = palmz72_lcd_modes, .num_modes = ARRAY_SIZE(palmz72_lcd_modes), .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL, }; #ifdef CONFIG_PM /* We have some black magic here * PalmOS ROM on recover expects special struct physical address * to be transferred via PSPR. Using this struct PalmOS restores * its state after sleep. As for Linux, we need to setup it the * same way. More than that, PalmOS ROM changes some values in memory. * For now only one location is found, which needs special treatment. * Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people * for reading backtraces for me :) */ #define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050) static struct palmz72_resume_info palmz72_resume_info = { .magic0 = 0xb4e6, .magic1 = 1, /* reset state, MMU off etc */ .arm_control = 0, .aux_control = 0, .ttb = 0, .domain_access = 0, .process_id = 0, }; static unsigned long store_ptr; /* sys_device for Palm Zire 72 PM */ static int palmz72_pm_suspend(struct sys_device *dev, pm_message_t msg) { /* setup the resume_info struct for the original bootloader */ palmz72_resume_info.resume_addr = (u32) pxa_cpu_resume; /* Storing memory touched by ROM */ store_ptr = *PALMZ72_SAVE_DWORD; /* Setting PSPR to a proper value */ PSPR = virt_to_phys(&palmz72_resume_info); return 0; } static int palmz72_pm_resume(struct sys_device *dev) { *PALMZ72_SAVE_DWORD = store_ptr; return 0; } static struct sysdev_class palmz72_pm_sysclass = { .name = "palmz72_pm", .suspend = palmz72_pm_suspend, .resume = palmz72_pm_resume, }; static struct sys_device palmz72_pm_device = { .cls = &palmz72_pm_sysclass, }; static int __init palmz72_pm_init(void) { int ret = -ENODEV; if (machine_is_palmz72()) { ret = sysdev_class_register(&palmz72_pm_sysclass); if (ret == 0) ret = sysdev_register(&palmz72_pm_device); } return ret; } device_initcall(palmz72_pm_init); #endif /****************************************************************************** * Machine init ******************************************************************************/ static struct platform_device *devices[] __initdata = { &palmz72_backlight, &palmz72_leds, &power_supply, }; static void __init palmz72_init(void) { pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config)); set_pxa_fb_info(&palmz72_lcd_screen); pxa_set_mci_info(&palmz72_mci_platform_data); pxa_set_ac97_info(NULL); pxa_set_ficp_info(&palmz72_ficp_platform_data); pxa_set_keypad_info(&palmz72_keypad_platform_data); platform_add_devices(devices, ARRAY_SIZE(devices)); } MACHINE_START(PALMZ72, "Palm Zire72") .phys_io = 0x40000000, .io_pg_offst = io_p2v(0x40000000), .boot_params = 0xa0000100, .map_io = pxa_map_io, .init_irq = pxa27x_init_irq, .timer = &pxa_timer, .init_machine = palmz72_init MACHINE_END