arch/arm/mach-pxa/palmz72.c

   1 /*
   2  * Hardware definitions for Palm Zire72
   3  *
   4  * Authors:
   5  *      Vladimir "Farcaller" Pouzanov <farcaller@gmail.com>
   6  *      Sergey Lapin <slapin@ossfans.org>
   7  *      Alex Osborne <bobofdoom@gmail.com>
   8  *      Jan Herman <2hp@seznam.cz>
   9  *
  10  * Rewrite for mainline:
  11  *      Marek Vasut <marek.vasut@gmail.com>
  12  *
  13  * This program is free software; you can redistribute it and/or modify
  14  * it under the terms of the GNU General Public License version 2 as
  15  * published by the Free Software Foundation.
  16  *
  17  * (find more info at www.hackndev.com)
  18  *
  19  */
  20
  21 #include <linux/platform_device.h>
  22 #include <linux/sysdev.h>
  23 #include <linux/delay.h>
  24 #include <linux/irq.h>
  25 #include <linux/gpio_keys.h>
  26 #include <linux/input.h>
  27 #include <linux/pda_power.h>
  28 #include <linux/pwm_backlight.h>
  29 #include <linux/gpio.h>
  30 #include <linux/wm97xx.h>
  31 #include <linux/power_supply.h>
  32 #include <linux/usb/gpio_vbus.h>
  33
  34 #include <asm/mach-types.h>
  35 #include <asm/mach/arch.h>
  36 #include <asm/mach/map.h>
  37
  38 #include <mach/pxa27x.h>
  39 #include <mach/audio.h>
  40 #include <mach/palmz72.h>
  41 #include <mach/mmc.h>
  42 #include <mach/pxafb.h>
  43 #include <mach/irda.h>
  44 #include <plat/pxa27x_keypad.h>
  45 #include <mach/udc.h>
  46 #include <mach/palmasoc.h>
  47 #include <mach/palm27x.h>
  48
  49 #include <mach/pm.h>
  50
  51 #include "generic.h"
  52 #include "devices.h"
  53
  54 /******************************************************************************
  55  * Pin configuration
  56  ******************************************************************************/
  57 static unsigned long palmz72_pin_config[] __initdata = {
  58         /* MMC */
  59         GPIO32_MMC_CLK,
  60         GPIO92_MMC_DAT_0,
  61         GPIO109_MMC_DAT_1,
  62         GPIO110_MMC_DAT_2,
  63         GPIO111_MMC_DAT_3,
  64         GPIO112_MMC_CMD,
  65         GPIO14_GPIO,    /* SD detect */
  66         GPIO115_GPIO,   /* SD RO */
  67         GPIO98_GPIO,    /* SD power */
  68
  69         /* AC97 */
  70         GPIO28_AC97_BITCLK,
  71         GPIO29_AC97_SDATA_IN_0,
  72         GPIO30_AC97_SDATA_OUT,
  73         GPIO31_AC97_SYNC,
  74         GPIO89_AC97_SYSCLK,
  75         GPIO113_AC97_nRESET,
  76
  77         /* IrDA */
  78         GPIO49_GPIO,    /* ir disable */
  79         GPIO46_FICP_RXD,
  80         GPIO47_FICP_TXD,
  81
  82         /* PWM */
  83         GPIO16_PWM0_OUT,
  84
  85         /* USB */
  86         GPIO15_GPIO,    /* usb detect */
  87         GPIO95_GPIO,    /* usb pullup */
  88
  89         /* Matrix keypad */
  90         GPIO100_KP_MKIN_0       | WAKEUP_ON_LEVEL_HIGH,
  91         GPIO101_KP_MKIN_1       | WAKEUP_ON_LEVEL_HIGH,
  92         GPIO102_KP_MKIN_2       | WAKEUP_ON_LEVEL_HIGH,
  93         GPIO97_KP_MKIN_3        | WAKEUP_ON_LEVEL_HIGH,
  94         GPIO103_KP_MKOUT_0,
  95         GPIO104_KP_MKOUT_1,
  96         GPIO105_KP_MKOUT_2,
  97
  98         /* LCD */
  99         GPIOxx_LCD_TFT_16BPP,
 100
 101         GPIO20_GPIO,    /* bl power */
 102         GPIO21_GPIO,    /* LCD border switch */
 103         GPIO22_GPIO,    /* LCD border color */
 104         GPIO96_GPIO,    /* lcd power */
 105
 106         /* Misc. */
 107         GPIO0_GPIO      | WAKEUP_ON_LEVEL_HIGH, /* power detect */
 108         GPIO88_GPIO,                            /* green led */
 109         GPIO27_GPIO,                            /* WM9712 IRQ */
 110 };
 111
 112 /******************************************************************************
 113  * GPIO keyboard
 114  ******************************************************************************/
 115 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
 116 static unsigned int palmz72_matrix_keys[] = {
 117         KEY(0, 0, KEY_POWER),
 118         KEY(0, 1, KEY_F1),
 119         KEY(0, 2, KEY_ENTER),
 120
 121         KEY(1, 0, KEY_F2),
 122         KEY(1, 1, KEY_F3),
 123         KEY(1, 2, KEY_F4),
 124
 125         KEY(2, 0, KEY_UP),
 126         KEY(2, 2, KEY_DOWN),
 127
 128         KEY(3, 0, KEY_RIGHT),
 129         KEY(3, 2, KEY_LEFT),
 130 };
 131
 132 static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = {
 133         .matrix_key_rows        = 4,
 134         .matrix_key_cols        = 3,
 135         .matrix_key_map         = palmz72_matrix_keys,
 136         .matrix_key_map_size    = ARRAY_SIZE(palmz72_matrix_keys),
 137
 138         .debounce_interval      = 30,
 139 };
 140
 141 static void __init palmz72_kpc_init(void)
 142 {
 143         pxa_set_keypad_info(&palmz72_keypad_platform_data);
 144 }
 145 #else
 146 static inline void palmz72_kpc_init(void) {}
 147 #endif
 148
 149 /******************************************************************************
 150  * LEDs
 151  ******************************************************************************/
 152 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 153 static struct gpio_led gpio_leds[] = {
 154         {
 155                 .name                   = "palmz72:green:led",
 156                 .default_trigger        = "none",
 157                 .gpio                   = GPIO_NR_PALMZ72_LED_GREEN,
 158         },
 159 };
 160
 161 static struct gpio_led_platform_data gpio_led_info = {
 162         .leds           = gpio_leds,
 163         .num_leds       = ARRAY_SIZE(gpio_leds),
 164 };
 165
 166 static struct platform_device palmz72_leds = {
 167         .name   = "leds-gpio",
 168         .id     = -1,
 169         .dev    = {
 170                 .platform_data  = &gpio_led_info,
 171         }
 172 };
 173
 174 static void __init palmz72_leds_init(void)
 175 {
 176         platform_device_register(&palmz72_leds);
 177 }
 178 #else
 179 static inline void palmz72_leds_init(void) {}
 180 #endif
 181
 182 #ifdef CONFIG_PM
 183
 184 /* We have some black magic here
 185  * PalmOS ROM on recover expects special struct physical address
 186  * to be transferred via PSPR. Using this struct PalmOS restores
 187  * its state after sleep. As for Linux, we need to setup it the
 188  * same way. More than that, PalmOS ROM changes some values in memory.
 189  * For now only one location is found, which needs special treatment.
 190  * Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people
 191  * for reading backtraces for me :)
 192  */
 193
 194 #define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050)
 195
 196 static struct palmz72_resume_info palmz72_resume_info = {
 197         .magic0 = 0xb4e6,
 198         .magic1 = 1,
 199
 200         /* reset state, MMU off etc */
 201         .arm_control = 0,
 202         .aux_control = 0,
 203         .ttb = 0,
 204         .domain_access = 0,
 205         .process_id = 0,
 206 };
 207
 208 static unsigned long store_ptr;
 209
 210 /* sys_device for Palm Zire 72 PM */
 211
 212 static int palmz72_pm_suspend(struct sys_device *dev, pm_message_t msg)
 213 {
 214         /* setup the resume_info struct for the original bootloader */
 215         palmz72_resume_info.resume_addr = (u32) cpu_resume;
 216
 217         /* Storing memory touched by ROM */
 218         store_ptr = *PALMZ72_SAVE_DWORD;
 219
 220         /* Setting PSPR to a proper value */
 221         PSPR = virt_to_phys(&palmz72_resume_info);
 222
 223         return 0;
 224 }
 225
 226 static int palmz72_pm_resume(struct sys_device *dev)
 227 {
 228         *PALMZ72_SAVE_DWORD = store_ptr;
 229         return 0;
 230 }
 231
 232 static struct sysdev_class palmz72_pm_sysclass = {
 233         .name = "palmz72_pm",
 234         .suspend = palmz72_pm_suspend,
 235         .resume = palmz72_pm_resume,
 236 };
 237
 238 static struct sys_device palmz72_pm_device = {
 239         .cls = &palmz72_pm_sysclass,
 240 };
 241
 242 static int __init palmz72_pm_init(void)
 243 {
 244         int ret = -ENODEV;
 245         if (machine_is_palmz72()) {
 246                 ret = sysdev_class_register(&palmz72_pm_sysclass);
 247                 if (ret == 0)
 248                         ret = sysdev_register(&palmz72_pm_device);
 249         }
 250         return ret;
 251 }
 252
 253 device_initcall(palmz72_pm_init);
 254 #endif
 255
 256 /******************************************************************************
 257  * Machine init
 258  ******************************************************************************/
 259 static void __init palmz72_init(void)
 260 {
 261         pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));
 262         pxa_set_ffuart_info(NULL);
 263         pxa_set_btuart_info(NULL);
 264         pxa_set_stuart_info(NULL);
 265
 266         palm27x_mmc_init(GPIO_NR_PALMZ72_SD_DETECT_N, GPIO_NR_PALMZ72_SD_RO,
 267                         GPIO_NR_PALMZ72_SD_POWER_N, 1);
 268         palm27x_lcd_init(-1, &palm_320x320_lcd_mode);
 269         palm27x_udc_init(GPIO_NR_PALMZ72_USB_DETECT_N,
 270                         GPIO_NR_PALMZ72_USB_PULLUP, 0);
 271         palm27x_irda_init(GPIO_NR_PALMZ72_IR_DISABLE);
 272         palm27x_ac97_init(PALMZ72_BAT_MIN_VOLTAGE, PALMZ72_BAT_MAX_VOLTAGE,
 273                         -1, 113);
 274         palm27x_pwm_init(-1, -1);
 275         palm27x_power_init(-1, -1);
 276         palm27x_pmic_init();
 277         palmz72_kpc_init();
 278         palmz72_leds_init();
 279 }
 280
 281 MACHINE_START(PALMZ72, "Palm Zire72")
 282         .boot_params    = 0xa0000100,
 283         .map_io         = pxa27x_map_io,
 284         .init_irq       = pxa27x_init_irq,
 285         .timer          = &pxa_timer,
 286         .init_machine   = palmz72_init
 287 MACHINE_END