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  ******************************************************************************/
  56 static 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)
 137 static 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
 153 static struct matrix_keymap_data almz72_matrix_keymap_data = {
 154         .keymap                 = palmz72_matrix_keys,
 155         .keymap_size            = ARRAY_SIZE(palmz72_matrix_keys),
 156 };
 157
 158 static 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
 166 static void __init palmz72_kpc_init(void)
 167 {
 168         pxa_set_keypad_info(&palmz72_keypad_platform_data);
 169 }
 170 #else
 171 static inline void palmz72_kpc_init(void) {}
 172 #endif
 173
 174 /******************************************************************************
 175  * LEDs
 176  ******************************************************************************/
 177 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 178 static 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
 186 static struct gpio_led_platform_data gpio_led_info = {
 187         .leds           = gpio_leds,
 188         .num_leds       = ARRAY_SIZE(gpio_leds),
 189 };
 190
 191 static struct platform_device palmz72_leds = {
 192         .name   = "leds-gpio",
 193         .id     = -1,
 194         .dev    = {
 195                 .platform_data  = &gpio_led_info,
 196         }
 197 };
 198
 199 static void __init palmz72_leds_init(void)
 200 {
 201         platform_device_register(&palmz72_leds);
 202 }
 203 #else
 204 static 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
 221 static 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
 233 static unsigned long store_ptr;
 234
 235 /* syscore_ops for Palm Zire 72 PM */
 236
 237 static 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
 251 static void palmz72_pm_resume(void)
 252 {
 253         *PALMZ72_SAVE_DWORD = store_ptr;
 254 }
 255
 256 static struct syscore_ops palmz72_pm_syscore_ops = {
 257         .suspend = palmz72_pm_suspend,
 258         .resume = palmz72_pm_resume,
 259 };
 260
 261 static 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
 270 device_initcall(palmz72_pm_init);
 271 #endif
 272
 273 static 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  ******************************************************************************/
 289 static 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
 310 MACHINE_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,
 319 MACHINE_END