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