arch/arm/mach-pxa/corgi.c

   1 /*
   2  * Support for Sharp SL-C7xx PDAs
   3  * Models: SL-C700 (Corgi), SL-C750 (Shepherd), SL-C760 (Husky)
   4  *
   5  * Copyright (c) 2004-2005 Richard Purdie
   6  *
   7  * Based on Sharp's 2.4 kernel patches/lubbock.c
   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
  24 #include <asm/setup.h>
  25 #include <asm/memory.h>
  26 #include <asm/mach-types.h>
  27 #include <asm/hardware.h>
  28 #include <asm/irq.h>
  29 #include <asm/io.h>
  30 #include <asm/system.h>
  31
  32 #include <asm/mach/arch.h>
  33 #include <asm/mach/map.h>
  34 #include <asm/mach/irq.h>
  35
  36 #include <asm/arch/pxa-regs.h>
  37 #include <asm/arch/irda.h>
  38 #include <asm/arch/mmc.h>
  39 #include <asm/arch/udc.h>
  40 #include <asm/arch/corgi.h>
  41 #include <asm/arch/sharpsl.h>
  42
  43 #include <asm/mach/sharpsl_param.h>
  44 #include <asm/hardware/scoop.h>
  45
  46 #include "generic.h"
  47 #include "sharpsl.h"
  48
  49
  50 /*
  51  * Corgi SCOOP Device
  52  */
  53 static struct resource corgi_scoop_resources[] = {
  54         [0] = {
  55                 .start          = 0x10800000,
  56                 .end            = 0x10800fff,
  57                 .flags          = IORESOURCE_MEM,
  58         },
  59 };
  60
  61 static struct scoop_config corgi_scoop_setup = {
  62         .io_dir         = CORGI_SCOOP_IO_DIR,
  63         .io_out         = CORGI_SCOOP_IO_OUT,
  64 };
  65
  66 struct platform_device corgiscoop_device = {
  67         .name           = "sharp-scoop",
  68         .id             = -1,
  69         .dev            = {
  70                 .platform_data  = &corgi_scoop_setup,
  71         },
  72         .num_resources  = ARRAY_SIZE(corgi_scoop_resources),
  73         .resource       = corgi_scoop_resources,
  74 };
  75
  76 static void corgi_pcmcia_init(void)
  77 {
  78         /* Setup default state of GPIO outputs
  79            before we enable them as outputs. */
  80         GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
  81                 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
  82                 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) |
  83                 GPIO_bit(GPIO53_nPCE_2);
  84
  85         pxa_gpio_mode(GPIO48_nPOE_MD);
  86         pxa_gpio_mode(GPIO49_nPWE_MD);
  87         pxa_gpio_mode(GPIO50_nPIOR_MD);
  88         pxa_gpio_mode(GPIO51_nPIOW_MD);
  89         pxa_gpio_mode(GPIO55_nPREG_MD);
  90         pxa_gpio_mode(GPIO56_nPWAIT_MD);
  91         pxa_gpio_mode(GPIO57_nIOIS16_MD);
  92         pxa_gpio_mode(GPIO52_nPCE_1_MD);
  93         pxa_gpio_mode(GPIO53_nPCE_2_MD);
  94         pxa_gpio_mode(GPIO54_pSKTSEL_MD);
  95 }
  96
  97 static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
  98 {
  99         .dev        = &corgiscoop_device.dev,
 100         .irq        = CORGI_IRQ_GPIO_CF_IRQ,
 101         .cd_irq     = CORGI_IRQ_GPIO_CF_CD,
 102         .cd_irq_str = "PCMCIA0 CD",
 103 },
 104 };
 105
 106 static struct scoop_pcmcia_config corgi_pcmcia_config = {
 107         .devs         = &corgi_pcmcia_scoop[0],
 108         .num_devs     = 1,
 109         .pcmcia_init  = corgi_pcmcia_init,
 110 };
 111
 112 EXPORT_SYMBOL(corgiscoop_device);
 113
 114
 115 /*
 116  * Corgi SSP Device
 117  *
 118  * Set the parent as the scoop device because a lot of SSP devices
 119  * also use scoop functions and this makes the power up/down order
 120  * work correctly.
 121  */
 122 struct platform_device corgissp_device = {
 123         .name           = "corgi-ssp",
 124         .dev            = {
 125                 .parent = &corgiscoop_device.dev,
 126         },
 127         .id             = -1,
 128 };
 129
 130 struct corgissp_machinfo corgi_ssp_machinfo = {
 131         .port           = 1,
 132         .cs_lcdcon      = CORGI_GPIO_LCDCON_CS,
 133         .cs_ads7846     = CORGI_GPIO_ADS7846_CS,
 134         .cs_max1111     = CORGI_GPIO_MAX1111_CS,
 135         .clk_lcdcon     = 76,
 136         .clk_ads7846    = 2,
 137         .clk_max1111    = 8,
 138 };
 139
 140
 141 /*
 142  * Corgi Backlight Device
 143  */
 144 static struct corgibl_machinfo corgi_bl_machinfo = {
 145         .max_intensity = 0x2f,
 146         .default_intensity = 0x1f,
 147         .limit_mask = 0x0b,
 148         .set_bl_intensity = corgi_bl_set_intensity,
 149 };
 150
 151 static struct platform_device corgibl_device = {
 152         .name           = "corgi-bl",
 153         .dev            = {
 154                 .parent = &corgifb_device.dev,
 155                 .platform_data  = &corgi_bl_machinfo,
 156         },
 157         .id             = -1,
 158 };
 159
 160
 161 /*
 162  * Corgi Keyboard Device
 163  */
 164 static struct platform_device corgikbd_device = {
 165         .name           = "corgi-keyboard",
 166         .id             = -1,
 167 };
 168
 169
 170 /*
 171  * Corgi LEDs
 172  */
 173 static struct platform_device corgiled_device = {
 174         .name           = "corgi-led",
 175         .id             = -1,
 176 };
 177
 178 /*
 179  * Corgi Touch Screen Device
 180  */
 181 static struct resource corgits_resources[] = {
 182         [0] = {
 183                 .start          = CORGI_IRQ_GPIO_TP_INT,
 184                 .end            = CORGI_IRQ_GPIO_TP_INT,
 185                 .flags          = IORESOURCE_IRQ,
 186         },
 187 };
 188
 189 static struct corgits_machinfo  corgi_ts_machinfo = {
 190         .get_hsync_len   = corgi_get_hsync_len,
 191         .put_hsync       = corgi_put_hsync,
 192         .wait_hsync      = corgi_wait_hsync,
 193 };
 194
 195 static struct platform_device corgits_device = {
 196         .name           = "corgi-ts",
 197         .dev            = {
 198                 .parent = &corgissp_device.dev,
 199                 .platform_data  = &corgi_ts_machinfo,
 200         },
 201         .id             = -1,
 202         .num_resources  = ARRAY_SIZE(corgits_resources),
 203         .resource       = corgits_resources,
 204 };
 205
 206
 207 /*
 208  * MMC/SD Device
 209  *
 210  * The card detect interrupt isn't debounced so we delay it by 250ms
 211  * to give the card a chance to fully insert/eject.
 212  */
 213 static struct pxamci_platform_data corgi_mci_platform_data;
 214
 215 static int corgi_mci_init(struct device *dev, irq_handler_t corgi_detect_int, void *data)
 216 {
 217         int err;
 218
 219         /* setup GPIO for PXA25x MMC controller */
 220         pxa_gpio_mode(GPIO6_MMCCLK_MD);
 221         pxa_gpio_mode(GPIO8_MMCCS0_MD);
 222         pxa_gpio_mode(CORGI_GPIO_nSD_DETECT | GPIO_IN);
 223         pxa_gpio_mode(CORGI_GPIO_SD_PWR | GPIO_OUT);
 224
 225         corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 226
 227         err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int,
 228                           IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 229                           "MMC card detect", data);
 230         if (err) {
 231                 printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 232                 return -1;
 233         }
 234
 235         return 0;
 236 }
 237
 238 static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
 239 {
 240         struct pxamci_platform_data* p_d = dev->platform_data;
 241
 242         if (( 1 << vdd) & p_d->ocr_mask)
 243                 GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
 244         else
 245                 GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
 246 }
 247
 248 static int corgi_mci_get_ro(struct device *dev)
 249 {
 250         return GPLR(CORGI_GPIO_nSD_WP) & GPIO_bit(CORGI_GPIO_nSD_WP);
 251 }
 252
 253 static void corgi_mci_exit(struct device *dev, void *data)
 254 {
 255         free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
 256 }
 257
 258 static struct pxamci_platform_data corgi_mci_platform_data = {
 259         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 260         .init           = corgi_mci_init,
 261         .get_ro         = corgi_mci_get_ro,
 262         .setpower       = corgi_mci_setpower,
 263         .exit           = corgi_mci_exit,
 264 };
 265
 266
 267 /*
 268  * Irda
 269  */
 270 static void corgi_irda_transceiver_mode(struct device *dev, int mode)
 271 {
 272         if (mode & IR_OFF)
 273                 GPSR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
 274         else
 275                 GPCR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
 276 }
 277
 278 static struct pxaficp_platform_data corgi_ficp_platform_data = {
 279         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 280         .transceiver_mode = corgi_irda_transceiver_mode,
 281 };
 282
 283
 284 /*
 285  * USB Device Controller
 286  */
 287 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 288         /* no connect GPIO; corgi can't tell connection status */
 289         .gpio_pullup            = CORGI_GPIO_USB_PULLUP,
 290 };
 291
 292
 293 static struct platform_device *devices[] __initdata = {
 294         &corgiscoop_device,
 295         &corgissp_device,
 296         &corgifb_device,
 297         &corgikbd_device,
 298         &corgibl_device,
 299         &corgits_device,
 300         &corgiled_device,
 301 };
 302
 303 static void corgi_poweroff(void)
 304 {
 305         RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
 306
 307         if (!machine_is_corgi())
 308                 /* Green LED off tells the bootloader to halt */
 309                 reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
 310         arm_machine_restart('h');
 311 }
 312
 313 static void corgi_restart(char mode)
 314 {
 315         RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
 316
 317         if (!machine_is_corgi())
 318                 /* Green LED on tells the bootloader to reboot */
 319                 set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
 320         arm_machine_restart('h');
 321 }
 322
 323 static void __init corgi_init(void)
 324 {
 325         pm_power_off = corgi_poweroff;
 326         arm_pm_restart = corgi_restart;
 327
 328         /* setup sleep mode values */
 329         PWER  = 0x00000002;
 330         PFER  = 0x00000000;
 331         PRER  = 0x00000002;
 332         PGSR0 = 0x0158C000;
 333         PGSR1 = 0x00FF0080;
 334         PGSR2 = 0x0001C004;
 335         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
 336         PCFR |= PCFR_OPDE;
 337
 338         corgi_ssp_set_machinfo(&corgi_ssp_machinfo);
 339
 340         pxa_gpio_mode(CORGI_GPIO_IR_ON | GPIO_OUT);
 341         pxa_gpio_mode(CORGI_GPIO_HSYNC | GPIO_IN);
 342
 343         pxa_set_udc_info(&udc_info);
 344         pxa_set_mci_info(&corgi_mci_platform_data);
 345         pxa_set_ficp_info(&corgi_ficp_platform_data);
 346
 347         platform_scoop_config = &corgi_pcmcia_config;
 348
 349         platform_add_devices(devices, ARRAY_SIZE(devices));
 350 }
 351
 352 static void __init fixup_corgi(struct machine_desc *desc,
 353                 struct tag *tags, char **cmdline, struct meminfo *mi)
 354 {
 355         sharpsl_save_param();
 356         mi->nr_banks=1;
 357         mi->bank[0].start = 0xa0000000;
 358         mi->bank[0].node = 0;
 359         if (machine_is_corgi())
 360                 mi->bank[0].size = (32*1024*1024);
 361         else
 362                 mi->bank[0].size = (64*1024*1024);
 363 }
 364
 365 #ifdef CONFIG_MACH_CORGI
 366 MACHINE_START(CORGI, "SHARP Corgi")
 367         .phys_io        = 0x40000000,
 368         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 369         .fixup          = fixup_corgi,
 370         .map_io         = pxa_map_io,
 371         .init_irq       = pxa_init_irq,
 372         .init_machine   = corgi_init,
 373         .timer          = &pxa_timer,
 374 MACHINE_END
 375 #endif
 376
 377 #ifdef CONFIG_MACH_SHEPHERD
 378 MACHINE_START(SHEPHERD, "SHARP Shepherd")
 379         .phys_io        = 0x40000000,
 380         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 381         .fixup          = fixup_corgi,
 382         .map_io         = pxa_map_io,
 383         .init_irq       = pxa_init_irq,
 384         .init_machine   = corgi_init,
 385         .timer          = &pxa_timer,
 386 MACHINE_END
 387 #endif
 388
 389 #ifdef CONFIG_MACH_HUSKY
 390 MACHINE_START(HUSKY, "SHARP Husky")
 391         .phys_io        = 0x40000000,
 392         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 393         .fixup          = fixup_corgi,
 394         .map_io         = pxa_map_io,
 395         .init_irq       = pxa_init_irq,
 396         .init_machine   = corgi_init,
 397         .timer          = &pxa_timer,
 398 MACHINE_END
 399 #endif
 400