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/irda.h>
  36 #include <asm/arch/mmc.h>
  37 #include <asm/arch/udc.h>
  38
  39 #include <asm/mach/arch.h>
  40 #include <asm/mach/map.h>
  41 #include <asm/mach/irq.h>
  42 #include <asm/arch/tosa.h>
  43
  44 #include <asm/hardware/scoop.h>
  45 #include <asm/mach/sharpsl_param.h>
  46
  47 #include "generic.h"
  48 #include "devices.h"
  49
  50 /*
  51  * SCOOP Device
  52  */
  53 static struct resource tosa_scoop_resources[] = {
  54         [0] = {
  55                 .start  = TOSA_CF_PHYS,
  56                 .end    = TOSA_CF_PHYS + 0xfff,
  57                 .flags  = IORESOURCE_MEM,
  58         },
  59 };
  60
  61 static struct scoop_config tosa_scoop_setup = {
  62         .io_dir         = TOSA_SCOOP_IO_DIR,
  63         .io_out         = TOSA_SCOOP_IO_OUT,
  64
  65 };
  66
  67 struct platform_device tosascoop_device = {
  68         .name           = "sharp-scoop",
  69         .id             = 0,
  70         .dev            = {
  71                 .platform_data  = &tosa_scoop_setup,
  72         },
  73         .num_resources  = ARRAY_SIZE(tosa_scoop_resources),
  74         .resource       = tosa_scoop_resources,
  75 };
  76
  77
  78 /*
  79  * SCOOP Device Jacket
  80  */
  81 static struct resource tosa_scoop_jc_resources[] = {
  82         [0] = {
  83                 .start          = TOSA_SCOOP_PHYS + 0x40,
  84                 .end            = TOSA_SCOOP_PHYS + 0xfff,
  85                 .flags          = IORESOURCE_MEM,
  86         },
  87 };
  88
  89 static struct scoop_config tosa_scoop_jc_setup = {
  90         .io_dir         = TOSA_SCOOP_JC_IO_DIR,
  91         .io_out         = TOSA_SCOOP_JC_IO_OUT,
  92 };
  93
  94 struct platform_device tosascoop_jc_device = {
  95         .name           = "sharp-scoop",
  96         .id             = 1,
  97         .dev            = {
  98                 .platform_data  = &tosa_scoop_jc_setup,
  99                 .parent         = &tosascoop_device.dev,
 100         },
 101         .num_resources  = ARRAY_SIZE(tosa_scoop_jc_resources),
 102         .resource       = tosa_scoop_jc_resources,
 103 };
 104
 105 /*
 106  * PCMCIA
 107  */
 108 static struct scoop_pcmcia_dev tosa_pcmcia_scoop[] = {
 109 {
 110         .dev        = &tosascoop_device.dev,
 111         .irq        = TOSA_IRQ_GPIO_CF_IRQ,
 112         .cd_irq     = TOSA_IRQ_GPIO_CF_CD,
 113         .cd_irq_str = "PCMCIA0 CD",
 114 },{
 115         .dev        = &tosascoop_jc_device.dev,
 116         .irq        = TOSA_IRQ_GPIO_JC_CF_IRQ,
 117         .cd_irq     = -1,
 118 },
 119 };
 120
 121 static void tosa_pcmcia_init(void)
 122 {
 123         /* Setup default state of GPIO outputs
 124            before we enable them as outputs. */
 125         GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
 126                 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
 127                 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) |
 128                 GPIO_bit(GPIO53_nPCE_2);
 129
 130         pxa_gpio_mode(GPIO48_nPOE_MD);
 131         pxa_gpio_mode(GPIO49_nPWE_MD);
 132         pxa_gpio_mode(GPIO50_nPIOR_MD);
 133         pxa_gpio_mode(GPIO51_nPIOW_MD);
 134         pxa_gpio_mode(GPIO55_nPREG_MD);
 135         pxa_gpio_mode(GPIO56_nPWAIT_MD);
 136         pxa_gpio_mode(GPIO57_nIOIS16_MD);
 137         pxa_gpio_mode(GPIO52_nPCE_1_MD);
 138         pxa_gpio_mode(GPIO53_nPCE_2_MD);
 139         pxa_gpio_mode(GPIO54_pSKTSEL_MD);
 140 }
 141
 142 static struct scoop_pcmcia_config tosa_pcmcia_config = {
 143         .devs         = &tosa_pcmcia_scoop[0],
 144         .num_devs     = 2,
 145         .pcmcia_init  = tosa_pcmcia_init,
 146 };
 147
 148 /*
 149  * USB Device Controller
 150  */
 151 static void tosa_udc_command(int cmd)
 152 {
 153         switch(cmd)     {
 154                 case PXA2XX_UDC_CMD_CONNECT:
 155                         set_scoop_gpio(&tosascoop_jc_device.dev,TOSA_SCOOP_JC_USB_PULLUP);
 156                         break;
 157                 case PXA2XX_UDC_CMD_DISCONNECT:
 158                         reset_scoop_gpio(&tosascoop_jc_device.dev,TOSA_SCOOP_JC_USB_PULLUP);
 159                         break;
 160         }
 161 }
 162
 163 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 164         .udc_command            = tosa_udc_command,
 165         .gpio_vbus              = TOSA_GPIO_USB_IN,
 166         .gpio_vbus_inverted     = 1,
 167 };
 168
 169 /*
 170  * MMC/SD Device
 171  */
 172 static struct pxamci_platform_data tosa_mci_platform_data;
 173
 174 static int tosa_mci_init(struct device *dev, irq_handler_t tosa_detect_int, void *data)
 175 {
 176         int err;
 177
 178         /* setup GPIO for PXA25x MMC controller */
 179         pxa_gpio_mode(GPIO6_MMCCLK_MD);
 180         pxa_gpio_mode(GPIO8_MMCCS0_MD);
 181         pxa_gpio_mode(TOSA_GPIO_nSD_DETECT | GPIO_IN);
 182
 183         tosa_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 184
 185         err = request_irq(TOSA_IRQ_GPIO_nSD_DETECT, tosa_detect_int,
 186                           IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 187                                 "MMC/SD card detect", data);
 188         if (err)
 189                 printk(KERN_ERR "tosa_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 190
 191         return err;
 192 }
 193
 194 static void tosa_mci_setpower(struct device *dev, unsigned int vdd)
 195 {
 196         struct pxamci_platform_data* p_d = dev->platform_data;
 197
 198         if (( 1 << vdd) & p_d->ocr_mask) {
 199                 set_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_PWR_ON);
 200         } else {
 201                 reset_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_PWR_ON);
 202         }
 203 }
 204
 205 static int tosa_mci_get_ro(struct device *dev)
 206 {
 207         return (read_scoop_reg(&tosascoop_device.dev, SCOOP_GPWR)&TOSA_SCOOP_SD_WP);
 208 }
 209
 210 static void tosa_mci_exit(struct device *dev, void *data)
 211 {
 212         free_irq(TOSA_IRQ_GPIO_nSD_DETECT, data);
 213 }
 214
 215 static struct pxamci_platform_data tosa_mci_platform_data = {
 216         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 217         .init           = tosa_mci_init,
 218         .get_ro         = tosa_mci_get_ro,
 219         .setpower       = tosa_mci_setpower,
 220         .exit           = tosa_mci_exit,
 221 };
 222
 223 /*
 224  * Irda
 225  */
 226 static void tosa_irda_transceiver_mode(struct device *dev, int mode)
 227 {
 228         if (mode & IR_OFF) {
 229                 reset_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_IR_POWERDWN);
 230                 pxa_gpio_mode(GPIO47_STTXD|GPIO_DFLT_LOW);
 231                 pxa_gpio_mode(GPIO47_STTXD|GPIO_OUT);
 232         } else {
 233                 pxa_gpio_mode(GPIO47_STTXD_MD);
 234                 set_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_IR_POWERDWN);
 235         }
 236 }
 237
 238 static struct pxaficp_platform_data tosa_ficp_platform_data = {
 239         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 240         .transceiver_mode = tosa_irda_transceiver_mode,
 241 };
 242
 243 /*
 244  * Tosa Keyboard
 245  */
 246 static struct platform_device tosakbd_device = {
 247         .name           = "tosa-keyboard",
 248         .id             = -1,
 249 };
 250
 251 static struct gpio_keys_button tosa_gpio_keys[] = {
 252         {
 253                 .type   = EV_PWR,
 254                 .code   = KEY_SUSPEND,
 255                 .gpio   = TOSA_GPIO_ON_KEY,
 256                 .desc   = "On key",
 257                 .wakeup = 1,
 258                 .active_low = 1,
 259         },
 260         {
 261                 .type   = EV_KEY,
 262                 .code   = TOSA_KEY_RECORD,
 263                 .gpio   = TOSA_GPIO_RECORD_BTN,
 264                 .desc   = "Record Button",
 265                 .wakeup = 1,
 266                 .active_low = 1,
 267         },
 268         {
 269                 .type   = EV_KEY,
 270                 .code   = TOSA_KEY_SYNC,
 271                 .gpio   = TOSA_GPIO_SYNC,
 272                 .desc   = "Sync Button",
 273                 .wakeup = 1,
 274                 .active_low = 1,
 275         },
 276 };
 277
 278 static struct gpio_keys_platform_data tosa_gpio_keys_platform_data = {
 279         .buttons        = tosa_gpio_keys,
 280         .nbuttons       = ARRAY_SIZE(tosa_gpio_keys),
 281 };
 282
 283 static struct platform_device tosa_gpio_keys_device = {
 284         .name   = "gpio-keys",
 285         .id     = -1,
 286         .dev    = {
 287                 .platform_data  = &tosa_gpio_keys_platform_data,
 288         },
 289 };
 290
 291 /*
 292  * Tosa LEDs
 293  */
 294 static struct platform_device tosaled_device = {
 295     .name   = "tosa-led",
 296     .id     = -1,
 297 };
 298
 299 static struct platform_device *devices[] __initdata = {
 300         &tosascoop_device,
 301         &tosascoop_jc_device,
 302         &tosakbd_device,
 303         &tosa_gpio_keys_device,
 304         &tosaled_device,
 305 };
 306
 307 static void tosa_poweroff(void)
 308 {
 309         RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
 310
 311         pxa_gpio_mode(TOSA_GPIO_ON_RESET | GPIO_OUT);
 312         GPSR(TOSA_GPIO_ON_RESET) = GPIO_bit(TOSA_GPIO_ON_RESET);
 313
 314         mdelay(1000);
 315         arm_machine_restart('h');
 316 }
 317
 318 static void tosa_restart(char mode)
 319 {
 320         /* Bootloader magic for a reboot */
 321         if((MSC0 & 0xffff0000) == 0x7ff00000)
 322                 MSC0 = (MSC0 & 0xffff) | 0x7ee00000;
 323
 324         tosa_poweroff();
 325 }
 326
 327 static void __init tosa_init(void)
 328 {
 329         pm_power_off = tosa_poweroff;
 330         arm_pm_restart = tosa_restart;
 331
 332         pxa_gpio_mode(TOSA_GPIO_ON_RESET | GPIO_IN);
 333         pxa_gpio_mode(TOSA_GPIO_TC6393_INT | GPIO_IN);
 334         pxa_gpio_mode(TOSA_GPIO_USB_IN | GPIO_IN);
 335
 336         /* setup sleep mode values */
 337         PWER  = 0x00000002;
 338         PFER  = 0x00000000;
 339         PRER  = 0x00000002;
 340         PGSR0 = 0x00000000;
 341         PGSR1 = 0x00FF0002;
 342         PGSR2 = 0x00014000;
 343         PCFR |= PCFR_OPDE;
 344
 345         /* enable batt_fault */
 346         PMCR = 0x01;
 347
 348         pxa_set_mci_info(&tosa_mci_platform_data);
 349         pxa_set_udc_info(&udc_info);
 350         pxa_set_ficp_info(&tosa_ficp_platform_data);
 351         platform_scoop_config = &tosa_pcmcia_config;
 352
 353         platform_add_devices(devices, ARRAY_SIZE(devices));
 354 }
 355
 356 static void __init fixup_tosa(struct machine_desc *desc,
 357                 struct tag *tags, char **cmdline, struct meminfo *mi)
 358 {
 359         sharpsl_save_param();
 360         mi->nr_banks=1;
 361         mi->bank[0].start = 0xa0000000;
 362         mi->bank[0].node = 0;
 363         mi->bank[0].size = (64*1024*1024);
 364 }
 365
 366 MACHINE_START(TOSA, "SHARP Tosa")
 367         .phys_io        = 0x40000000,
 368         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 369         .fixup          = fixup_tosa,
 370         .map_io         = pxa_map_io,
 371         .init_irq       = pxa25x_init_irq,
 372         .init_machine   = tosa_init,
 373         .timer          = &pxa_timer,
 374 MACHINE_END