LXR linux/arch/arm/mach-pxa/palmz72.c

   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * Hardware definitions for Palm Zire72
   4 *
   5 * Authors:
   6 *      Vladimir "Farcaller" Pouzanov <farcaller@gmail.com>
   7 *      Sergey Lapin <slapin@ossfans.org>
   8 *      Alex Osborne <bobofdoom@gmail.com>
   9 *      Jan Herman <2hp@seznam.cz>
  10 *
  11 * Rewrite for mainline:
  12 *      Marek Vasut <marek.vasut@gmail.com>
  13 *
  14 * (find more info at www.hackndev.com)
  15 */
  16
  17#include <linux/platform_device.h>
  18#include <linux/syscore_ops.h>
  19#include <linux/delay.h>
  20#include <linux/irq.h>
  21#include <linux/gpio_keys.h>
  22#include <linux/input.h>
  23#include <linux/pda_power.h>
  24#include <linux/pwm_backlight.h>
  25#include <linux/gpio.h>
  26#include <linux/wm97xx.h>
  27#include <linux/power_supply.h>
  28#include <linux/platform_data/i2c-gpio.h>
  29#include <linux/gpio/machine.h>
  30
  31#include <asm/mach-types.h>
  32#include <asm/suspend.h>
  33#include <asm/mach/arch.h>
  34#include <asm/mach/map.h>
  35
  36#include "pxa27x.h"
  37#include <mach/audio.h>
  38#include "palmz72.h"
  39#include <linux/platform_data/mmc-pxamci.h>
  40#include <linux/platform_data/video-pxafb.h>
  41#include <linux/platform_data/irda-pxaficp.h>
  42#include <linux/platform_data/keypad-pxa27x.h>
  43#include "udc.h"
  44#include <linux/platform_data/asoc-palm27x.h>
  45#include "palm27x.h"
  46
  47#include "pm.h"
  48#include <linux/platform_data/media/camera-pxa.h>
  49
  50#include "generic.h"
  51#include "devices.h"
  52
  53/******************************************************************************
  54 * Pin configuration
  55 ******************************************************************************/
  56static unsigned long palmz72_pin_config[] __initdata = {
  57        /* MMC */
  58        GPIO32_MMC_CLK,
  59        GPIO92_MMC_DAT_0,
  60        GPIO109_MMC_DAT_1,
  61        GPIO110_MMC_DAT_2,
  62        GPIO111_MMC_DAT_3,
  63        GPIO112_MMC_CMD,
  64        GPIO14_GPIO,    /* SD detect */
  65        GPIO115_GPIO,   /* SD RO */
  66        GPIO98_GPIO,    /* SD power */
  67
  68        /* AC97 */
  69        GPIO28_AC97_BITCLK,
  70        GPIO29_AC97_SDATA_IN_0,
  71        GPIO30_AC97_SDATA_OUT,
  72        GPIO31_AC97_SYNC,
  73        GPIO89_AC97_SYSCLK,
  74        GPIO113_AC97_nRESET,
  75
  76        /* IrDA */
  77        GPIO49_GPIO,    /* ir disable */
  78        GPIO46_FICP_RXD,
  79        GPIO47_FICP_TXD,
  80
  81        /* PWM */
  82        GPIO16_PWM0_OUT,
  83
  84        /* USB */
  85        GPIO15_GPIO,    /* usb detect */
  86        GPIO95_GPIO,    /* usb pullup */
  87
  88        /* Matrix keypad */
  89        GPIO100_KP_MKIN_0       | WAKEUP_ON_LEVEL_HIGH,
  90        GPIO101_KP_MKIN_1       | WAKEUP_ON_LEVEL_HIGH,
  91        GPIO102_KP_MKIN_2       | WAKEUP_ON_LEVEL_HIGH,
  92        GPIO97_KP_MKIN_3        | WAKEUP_ON_LEVEL_HIGH,
  93        GPIO103_KP_MKOUT_0,
  94        GPIO104_KP_MKOUT_1,
  95        GPIO105_KP_MKOUT_2,
  96
  97        /* LCD */
  98        GPIOxx_LCD_TFT_16BPP,
  99
 100        GPIO20_GPIO,    /* bl power */
 101        GPIO21_GPIO,    /* LCD border switch */
 102        GPIO22_GPIO,    /* LCD border color */
 103        GPIO96_GPIO,    /* lcd power */
 104
 105        /* PXA Camera */
 106        GPIO81_CIF_DD_0,
 107        GPIO48_CIF_DD_5,
 108        GPIO50_CIF_DD_3,
 109        GPIO51_CIF_DD_2,
 110        GPIO52_CIF_DD_4,
 111        GPIO53_CIF_MCLK,
 112        GPIO54_CIF_PCLK,
 113        GPIO55_CIF_DD_1,
 114        GPIO84_CIF_FV,
 115        GPIO85_CIF_LV,
 116        GPIO93_CIF_DD_6,
 117        GPIO108_CIF_DD_7,
 118
 119        GPIO56_GPIO,    /* OV9640 Powerdown */
 120        GPIO57_GPIO,    /* OV9640 Reset */
 121        GPIO91_GPIO,    /* OV9640 Power */
 122
 123        /* I2C */
 124        GPIO117_GPIO,   /* I2C_SCL */
 125        GPIO118_GPIO,   /* I2C_SDA */
 126
 127        /* Misc. */
 128        GPIO0_GPIO      | WAKEUP_ON_LEVEL_HIGH, /* power detect */
 129        GPIO88_GPIO,                            /* green led */
 130        GPIO27_GPIO,                            /* WM9712 IRQ */
 131};
 132
 133/******************************************************************************
 134 * GPIO keyboard
 135 ******************************************************************************/
 136#if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
 137static const unsigned int palmz72_matrix_keys[] = {
 138        KEY(0, 0, KEY_POWER),
 139        KEY(0, 1, KEY_F1),
 140        KEY(0, 2, KEY_ENTER),
 141
 142        KEY(1, 0, KEY_F2),
 143        KEY(1, 1, KEY_F3),
 144        KEY(1, 2, KEY_F4),
 145
 146        KEY(2, 0, KEY_UP),
 147        KEY(2, 2, KEY_DOWN),
 148
 149        KEY(3, 0, KEY_RIGHT),
 150        KEY(3, 2, KEY_LEFT),
 151};
 152
 153static struct matrix_keymap_data almz72_matrix_keymap_data = {
 154        .keymap                 = palmz72_matrix_keys,
 155        .keymap_size            = ARRAY_SIZE(palmz72_matrix_keys),
 156};
 157
 158static struct pxa27x_keypad_platform_data palmz72_keypad_platform_data = {
 159        .matrix_key_rows        = 4,
 160        .matrix_key_cols        = 3,
 161        .matrix_keymap_data     = &almz72_matrix_keymap_data,
 162
 163        .debounce_interval      = 30,
 164};
 165
 166static void __init palmz72_kpc_init(void)
 167{
 168        pxa_set_keypad_info(&palmz72_keypad_platform_data);
 169}
 170#else
 171static inline void palmz72_kpc_init(void) {}
 172#endif
 173
 174/******************************************************************************
 175 * LEDs
 176 ******************************************************************************/
 177#if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 178static struct gpio_led gpio_leds[] = {
 179        {
 180                .name                   = "palmz72:green:led",
 181                .default_trigger        = "none",
 182                .gpio                   = GPIO_NR_PALMZ72_LED_GREEN,
 183        },
 184};
 185
 186static struct gpio_led_platform_data gpio_led_info = {
 187        .leds           = gpio_leds,
 188        .num_leds       = ARRAY_SIZE(gpio_leds),
 189};
 190
 191static struct platform_device palmz72_leds = {
 192        .name   = "leds-gpio",
 193        .id     = -1,
 194        .dev    = {
 195                .platform_data  = &gpio_led_info,
 196        }
 197};
 198
 199static void __init palmz72_leds_init(void)
 200{
 201        platform_device_register(&palmz72_leds);
 202}
 203#else
 204static inline void palmz72_leds_init(void) {}
 205#endif
 206
 207#ifdef CONFIG_PM
 208
 209/* We have some black magic here
 210 * PalmOS ROM on recover expects special struct physical address
 211 * to be transferred via PSPR. Using this struct PalmOS restores
 212 * its state after sleep. As for Linux, we need to setup it the
 213 * same way. More than that, PalmOS ROM changes some values in memory.
 214 * For now only one location is found, which needs special treatment.
 215 * Thanks to Alex Osborne, Andrzej Zaborowski, and lots of other people
 216 * for reading backtraces for me :)
 217 */
 218
 219#define PALMZ72_SAVE_DWORD ((unsigned long *)0xc0000050)
 220
 221static struct palmz72_resume_info palmz72_resume_info = {
 222        .magic0 = 0xb4e6,
 223        .magic1 = 1,
 224
 225        /* reset state, MMU off etc */
 226        .arm_control = 0,
 227        .aux_control = 0,
 228        .ttb = 0,
 229        .domain_access = 0,
 230        .process_id = 0,
 231};
 232
 233static unsigned long store_ptr;
 234
 235/* syscore_ops for Palm Zire 72 PM */
 236
 237static int palmz72_pm_suspend(void)
 238{
 239        /* setup the resume_info struct for the original bootloader */
 240        palmz72_resume_info.resume_addr = (u32) cpu_resume;
 241
 242        /* Storing memory touched by ROM */
 243        store_ptr = *PALMZ72_SAVE_DWORD;
 244
 245        /* Setting PSPR to a proper value */
 246        PSPR = __pa_symbol(&palmz72_resume_info);
 247
 248        return 0;
 249}
 250
 251static void palmz72_pm_resume(void)
 252{
 253        *PALMZ72_SAVE_DWORD = store_ptr;
 254}
 255
 256static struct syscore_ops palmz72_pm_syscore_ops = {
 257        .suspend = palmz72_pm_suspend,
 258        .resume = palmz72_pm_resume,
 259};
 260
 261static int __init palmz72_pm_init(void)
 262{
 263        if (machine_is_palmz72()) {
 264                register_syscore_ops(&palmz72_pm_syscore_ops);
 265                return 0;
 266        }
 267        return -ENODEV;
 268}
 269
 270device_initcall(palmz72_pm_init);
 271#endif
 272
 273static struct gpiod_lookup_table palmz72_mci_gpio_table = {
 274        .dev_id = "pxa2xx-mci.0",
 275        .table = {
 276                GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMZ72_SD_DETECT_N,
 277                            "cd", GPIO_ACTIVE_LOW),
 278                GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMZ72_SD_RO,
 279                            "wp", GPIO_ACTIVE_LOW),
 280                GPIO_LOOKUP("gpio-pxa", GPIO_NR_PALMZ72_SD_POWER_N,
 281                            "power", GPIO_ACTIVE_LOW),
 282                { },
 283        },
 284};
 285
 286/******************************************************************************
 287 * Machine init
 288 ******************************************************************************/
 289static void __init palmz72_init(void)
 290{
 291        pxa2xx_mfp_config(ARRAY_AND_SIZE(palmz72_pin_config));
 292        pxa_set_ffuart_info(NULL);
 293        pxa_set_btuart_info(NULL);
 294        pxa_set_stuart_info(NULL);
 295
 296        palm27x_mmc_init(&palmz72_mci_gpio_table);
 297        palm27x_lcd_init(-1, &palm_320x320_lcd_mode);
 298        palm27x_udc_init(GPIO_NR_PALMZ72_USB_DETECT_N,
 299                        GPIO_NR_PALMZ72_USB_PULLUP, 0);
 300        palm27x_irda_init(GPIO_NR_PALMZ72_IR_DISABLE);
 301        palm27x_ac97_init(PALMZ72_BAT_MIN_VOLTAGE, PALMZ72_BAT_MAX_VOLTAGE,
 302                        -1, 113);
 303        palm27x_pwm_init(-1, -1);
 304        palm27x_power_init(-1, -1);
 305        palm27x_pmic_init();
 306        palmz72_kpc_init();
 307        palmz72_leds_init();
 308}
 309
 310MACHINE_START(PALMZ72, "Palm Zire72")
 311        .atag_offset    = 0x100,
 312        .map_io         = pxa27x_map_io,
 313        .nr_irqs        = PXA_NR_IRQS,
 314        .init_irq       = pxa27x_init_irq,
 315        .handle_irq     = pxa27x_handle_irq,
 316        .init_time      = pxa_timer_init,
 317        .init_machine   = palmz72_init,
 318        .restart        = pxa_restart,
 319MACHINE_END
 320