arch/arm/mach-pxa/tosa.c

   1 /*
   2  *  Support for Sharp SL-C6000x PDAs
   3  *  Model: (Tosa)
   4  *
   5  *  Copyright (c) 2005 Dirk Opfer
   6  *
   7  *      Based on code written by Sharp/Lineo for 2.4 kernels
   8  *
   9  *  This program is free software; you can redistribute it and/or modify
  10  *  it under the terms of the GNU General Public License version 2 as
  11  *  published by the Free Software Foundation.
  12  *
  13  */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/major.h>
  19 #include <linux/fs.h>
  20 #include <linux/interrupt.h>
  21 #include <linux/mmc/host.h>
  22 #include <linux/pm.h>
  23 #include <linux/delay.h>
  24 #include <linux/gpio_keys.h>
  25 #include <linux/input.h>
  26
  27 #include <asm/setup.h>
  28 #include <asm/memory.h>
  29 #include <asm/mach-types.h>
  30 #include <asm/hardware.h>
  31 #include <asm/irq.h>
  32 #include <asm/system.h>
  33 #include <asm/arch/pxa-regs.h>
  34 #include <asm/arch/pxa2xx-regs.h>
  35 #include <asm/arch/mfp-pxa25x.h>
  36 #include <asm/arch/irda.h>
  37 #include <asm/arch/i2c.h>
  38 #include <asm/arch/mmc.h>
  39 #include <asm/arch/udc.h>
  40
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/map.h>
  43 #include <asm/mach/irq.h>
  44 #include <asm/arch/tosa.h>
  45
  46 #include <asm/hardware/scoop.h>
  47 #include <asm/mach/sharpsl_param.h>
  48
  49 #include "generic.h"
  50 #include "devices.h"
  51
  52 static unsigned long tosa_pin_config[] = {
  53         GPIO78_nCS_2, /* Scoop */
  54         GPIO80_nCS_4, /* tg6393xb */
  55         GPIO33_nCS_5, /* Scoop */
  56
  57         // GPIO76 CARD_VCC_ON1
  58
  59         GPIO19_GPIO, /* Reset out */
  60         GPIO1_RST | WAKEUP_ON_EDGE_FALL,
  61
  62         GPIO0_GPIO | WAKEUP_ON_EDGE_FALL, /* WAKE_UP */
  63         GPIO2_GPIO | WAKEUP_ON_EDGE_BOTH, /* AC_IN */
  64         GPIO3_GPIO | WAKEUP_ON_EDGE_FALL, /* RECORD */
  65         GPIO4_GPIO | WAKEUP_ON_EDGE_FALL, /* SYNC */
  66         GPIO20_GPIO, /* EAR_IN */
  67         GPIO22_GPIO, /* On */
  68
  69         GPIO5_GPIO, /* USB_IN */
  70         GPIO32_GPIO, /* Pen IRQ */
  71
  72         GPIO7_GPIO, /* Jacket Detect */
  73         GPIO14_GPIO, /* BAT0_CRG */
  74         GPIO12_GPIO, /* BAT1_CRG */
  75         GPIO17_GPIO, /* BAT0_LOW */
  76         GPIO84_GPIO, /* BAT1_LOW */
  77         GPIO38_GPIO, /* BAT_LOCK */
  78
  79         GPIO11_3_6MHz,
  80         GPIO15_GPIO, /* TC6393XB IRQ */
  81         GPIO18_RDY,
  82         GPIO27_GPIO, /* LCD Sync */
  83
  84         /* MMC */
  85         GPIO6_MMC_CLK,
  86         GPIO8_MMC_CS0,
  87         GPIO9_GPIO, /* Detect */
  88         // GPIO10 nSD_INT
  89
  90         /* CF */
  91         GPIO13_GPIO, /* CD_IRQ */
  92         GPIO21_GPIO, /* Main Slot IRQ */
  93         GPIO36_GPIO, /* Jacket Slot IRQ */
  94         GPIO48_nPOE,
  95         GPIO49_nPWE,
  96         GPIO50_nPIOR,
  97         GPIO51_nPIOW,
  98         GPIO52_nPCE_1,
  99         GPIO53_nPCE_2,
 100         GPIO54_nPSKTSEL,
 101         GPIO55_nPREG,
 102         GPIO56_nPWAIT,
 103         GPIO57_nIOIS16,
 104
 105         /* AC97 */
 106         GPIO31_AC97_SYNC,
 107         GPIO30_AC97_SDATA_OUT,
 108         GPIO28_AC97_BITCLK,
 109         GPIO29_AC97_SDATA_IN_0,
 110         // GPIO79 nAUD_IRQ
 111
 112         /* FFUART */
 113         GPIO34_FFUART_RXD,
 114         GPIO35_FFUART_CTS,
 115         GPIO37_FFUART_DSR,
 116         GPIO39_FFUART_TXD,
 117         GPIO40_FFUART_DTR,
 118         GPIO41_FFUART_RTS,
 119
 120         /* BTUART */
 121         GPIO42_BTUART_RXD,
 122         GPIO43_BTUART_TXD,
 123         GPIO44_BTUART_CTS,
 124         GPIO45_BTUART_RTS,
 125
 126         /* IrDA */
 127         GPIO46_STUART_RXD,
 128         GPIO47_STUART_TXD,
 129
 130         /* Keybd */
 131         GPIO58_GPIO,
 132         GPIO59_GPIO,
 133         GPIO60_GPIO,
 134         GPIO61_GPIO,
 135         GPIO62_GPIO,
 136         GPIO63_GPIO,
 137         GPIO64_GPIO,
 138         GPIO65_GPIO,
 139         GPIO66_GPIO,
 140         GPIO67_GPIO,
 141         GPIO68_GPIO,
 142         GPIO69_GPIO,
 143         GPIO70_GPIO,
 144         GPIO71_GPIO,
 145         GPIO72_GPIO,
 146         GPIO73_GPIO,
 147         GPIO74_GPIO,
 148         GPIO75_GPIO,
 149
 150         /* SPI */
 151         GPIO81_SSP2_CLK_OUT,
 152         GPIO82_SSP2_FRM_OUT,
 153         GPIO83_SSP2_TXD,
 154 };
 155
 156 /*
 157  * SCOOP Device
 158  */
 159 static struct resource tosa_scoop_resources[] = {
 160         [0] = {
 161                 .start  = TOSA_CF_PHYS,
 162                 .end    = TOSA_CF_PHYS + 0xfff,
 163                 .flags  = IORESOURCE_MEM,
 164         },
 165 };
 166
 167 static struct scoop_config tosa_scoop_setup = {
 168         .io_dir         = TOSA_SCOOP_IO_DIR,
 169         .io_out         = TOSA_SCOOP_IO_OUT,
 170
 171 };
 172
 173 struct platform_device tosascoop_device = {
 174         .name           = "sharp-scoop",
 175         .id             = 0,
 176         .dev            = {
 177                 .platform_data  = &tosa_scoop_setup,
 178         },
 179         .num_resources  = ARRAY_SIZE(tosa_scoop_resources),
 180         .resource       = tosa_scoop_resources,
 181 };
 182
 183
 184 /*
 185  * SCOOP Device Jacket
 186  */
 187 static struct resource tosa_scoop_jc_resources[] = {
 188         [0] = {
 189                 .start          = TOSA_SCOOP_PHYS + 0x40,
 190                 .end            = TOSA_SCOOP_PHYS + 0xfff,
 191                 .flags          = IORESOURCE_MEM,
 192         },
 193 };
 194
 195 static struct scoop_config tosa_scoop_jc_setup = {
 196         .io_dir         = TOSA_SCOOP_JC_IO_DIR,
 197         .io_out         = TOSA_SCOOP_JC_IO_OUT,
 198 };
 199
 200 struct platform_device tosascoop_jc_device = {
 201         .name           = "sharp-scoop",
 202         .id             = 1,
 203         .dev            = {
 204                 .platform_data  = &tosa_scoop_jc_setup,
 205                 .parent         = &tosascoop_device.dev,
 206         },
 207         .num_resources  = ARRAY_SIZE(tosa_scoop_jc_resources),
 208         .resource       = tosa_scoop_jc_resources,
 209 };
 210
 211 /*
 212  * PCMCIA
 213  */
 214 static struct scoop_pcmcia_dev tosa_pcmcia_scoop[] = {
 215 {
 216         .dev        = &tosascoop_device.dev,
 217         .irq        = TOSA_IRQ_GPIO_CF_IRQ,
 218         .cd_irq     = TOSA_IRQ_GPIO_CF_CD,
 219         .cd_irq_str = "PCMCIA0 CD",
 220 },{
 221         .dev        = &tosascoop_jc_device.dev,
 222         .irq        = TOSA_IRQ_GPIO_JC_CF_IRQ,
 223         .cd_irq     = -1,
 224 },
 225 };
 226
 227 static struct scoop_pcmcia_config tosa_pcmcia_config = {
 228         .devs         = &tosa_pcmcia_scoop[0],
 229         .num_devs     = 2,
 230 };
 231
 232 /*
 233  * USB Device Controller
 234  */
 235 static void tosa_udc_command(int cmd)
 236 {
 237         switch(cmd)     {
 238                 case PXA2XX_UDC_CMD_CONNECT:
 239                         set_scoop_gpio(&tosascoop_jc_device.dev,TOSA_SCOOP_JC_USB_PULLUP);
 240                         break;
 241                 case PXA2XX_UDC_CMD_DISCONNECT:
 242                         reset_scoop_gpio(&tosascoop_jc_device.dev,TOSA_SCOOP_JC_USB_PULLUP);
 243                         break;
 244         }
 245 }
 246
 247 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 248         .udc_command            = tosa_udc_command,
 249         .gpio_vbus              = TOSA_GPIO_USB_IN,
 250         .gpio_vbus_inverted     = 1,
 251 };
 252
 253 /*
 254  * MMC/SD Device
 255  */
 256 static struct pxamci_platform_data tosa_mci_platform_data;
 257
 258 static int tosa_mci_init(struct device *dev, irq_handler_t tosa_detect_int, void *data)
 259 {
 260         int err;
 261
 262         tosa_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 263
 264         err = request_irq(TOSA_IRQ_GPIO_nSD_DETECT, tosa_detect_int,
 265                           IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 266                                 "MMC/SD card detect", data);
 267         if (err)
 268                 printk(KERN_ERR "tosa_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 269
 270         return err;
 271 }
 272
 273 static void tosa_mci_setpower(struct device *dev, unsigned int vdd)
 274 {
 275         struct pxamci_platform_data* p_d = dev->platform_data;
 276
 277         if (( 1 << vdd) & p_d->ocr_mask) {
 278                 set_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_PWR_ON);
 279         } else {
 280                 reset_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_PWR_ON);
 281         }
 282 }
 283
 284 static int tosa_mci_get_ro(struct device *dev)
 285 {
 286         return (read_scoop_reg(&tosascoop_device.dev, SCOOP_GPWR)&TOSA_SCOOP_SD_WP);
 287 }
 288
 289 static void tosa_mci_exit(struct device *dev, void *data)
 290 {
 291         free_irq(TOSA_IRQ_GPIO_nSD_DETECT, data);
 292 }
 293
 294 static struct pxamci_platform_data tosa_mci_platform_data = {
 295         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 296         .init           = tosa_mci_init,
 297         .get_ro         = tosa_mci_get_ro,
 298         .setpower       = tosa_mci_setpower,
 299         .exit           = tosa_mci_exit,
 300 };
 301
 302 /*
 303  * Irda
 304  */
 305 static void tosa_irda_transceiver_mode(struct device *dev, int mode)
 306 {
 307         if (mode & IR_OFF) {
 308                 reset_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_IR_POWERDWN);
 309         } else {
 310                 set_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_IR_POWERDWN);
 311         }
 312 }
 313
 314 static struct pxaficp_platform_data tosa_ficp_platform_data = {
 315         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 316         .transceiver_mode = tosa_irda_transceiver_mode,
 317 };
 318
 319 /*
 320  * Tosa Keyboard
 321  */
 322 static struct platform_device tosakbd_device = {
 323         .name           = "tosa-keyboard",
 324         .id             = -1,
 325 };
 326
 327 static struct gpio_keys_button tosa_gpio_keys[] = {
 328         /*
 329          * Two following keys are directly tied to "ON" button of tosa. Why?
 330          * The first one can be used as a wakeup source, the second can't;
 331          * also the first one is OR of ac_powered and on_button.
 332          */
 333         {
 334                 .type   = EV_PWR,
 335                 .code   = KEY_RESERVED,
 336                 .gpio   = TOSA_GPIO_POWERON,
 337                 .desc   = "Poweron",
 338                 .wakeup = 1,
 339                 .active_low = 1,
 340         },
 341         {
 342                 .type   = EV_PWR,
 343                 .code   = KEY_SUSPEND,
 344                 .gpio   = TOSA_GPIO_ON_KEY,
 345                 .desc   = "On key",
 346                 /*
 347                  * can't be used as wakeup
 348                  * .wakeup      = 1,
 349                  */
 350                 .active_low = 1,
 351         },
 352         {
 353                 .type   = EV_KEY,
 354                 .code   = TOSA_KEY_RECORD,
 355                 .gpio   = TOSA_GPIO_RECORD_BTN,
 356                 .desc   = "Record Button",
 357                 .wakeup = 1,
 358                 .active_low = 1,
 359         },
 360         {
 361                 .type   = EV_KEY,
 362                 .code   = TOSA_KEY_SYNC,
 363                 .gpio   = TOSA_GPIO_SYNC,
 364                 .desc   = "Sync Button",
 365                 .wakeup = 1,
 366                 .active_low = 1,
 367         },
 368 };
 369
 370 static struct gpio_keys_platform_data tosa_gpio_keys_platform_data = {
 371         .buttons        = tosa_gpio_keys,
 372         .nbuttons       = ARRAY_SIZE(tosa_gpio_keys),
 373 };
 374
 375 static struct platform_device tosa_gpio_keys_device = {
 376         .name   = "gpio-keys",
 377         .id     = -1,
 378         .dev    = {
 379                 .platform_data  = &tosa_gpio_keys_platform_data,
 380         },
 381 };
 382
 383 /*
 384  * Tosa LEDs
 385  */
 386 static struct platform_device tosaled_device = {
 387     .name   = "tosa-led",
 388     .id     = -1,
 389 };
 390
 391 static struct platform_device *devices[] __initdata = {
 392         &tosascoop_device,
 393         &tosascoop_jc_device,
 394         &tosakbd_device,
 395         &tosa_gpio_keys_device,
 396         &tosaled_device,
 397 };
 398
 399 static void tosa_poweroff(void)
 400 {
 401         RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
 402
 403         pxa_gpio_mode(TOSA_GPIO_ON_RESET | GPIO_OUT);
 404         GPSR(TOSA_GPIO_ON_RESET) = GPIO_bit(TOSA_GPIO_ON_RESET);
 405
 406         mdelay(1000);
 407         arm_machine_restart('h');
 408 }
 409
 410 static void tosa_restart(char mode)
 411 {
 412         /* Bootloader magic for a reboot */
 413         if((MSC0 & 0xffff0000) == 0x7ff00000)
 414                 MSC0 = (MSC0 & 0xffff) | 0x7ee00000;
 415
 416         tosa_poweroff();
 417 }
 418
 419 static void __init tosa_init(void)
 420 {
 421         pxa2xx_mfp_config(ARRAY_AND_SIZE(tosa_pin_config));
 422         gpio_set_wake(MFP_PIN_GPIO1, 1);
 423         /* We can't pass to gpio-keys since it will drop the Reset altfunc */
 424
 425         pm_power_off = tosa_poweroff;
 426         arm_pm_restart = tosa_restart;
 427
 428         PCFR |= PCFR_OPDE;
 429
 430         /* enable batt_fault */
 431         PMCR = 0x01;
 432
 433         pxa_set_mci_info(&tosa_mci_platform_data);
 434         pxa_set_udc_info(&udc_info);
 435         pxa_set_ficp_info(&tosa_ficp_platform_data);
 436         pxa_set_i2c_info(NULL);
 437         platform_scoop_config = &tosa_pcmcia_config;
 438
 439         platform_add_devices(devices, ARRAY_SIZE(devices));
 440 }
 441
 442 static void __init fixup_tosa(struct machine_desc *desc,
 443                 struct tag *tags, char **cmdline, struct meminfo *mi)
 444 {
 445         sharpsl_save_param();
 446         mi->nr_banks=1;
 447         mi->bank[0].start = 0xa0000000;
 448         mi->bank[0].node = 0;
 449         mi->bank[0].size = (64*1024*1024);
 450 }
 451
 452 MACHINE_START(TOSA, "SHARP Tosa")
 453         .phys_io        = 0x40000000,
 454         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 455         .fixup          = fixup_tosa,
 456         .map_io         = pxa_map_io,
 457         .init_irq       = pxa25x_init_irq,
 458         .init_machine   = tosa_init,
 459         .timer          = &pxa_timer,
 460 MACHINE_END