arch/arm/mach-pxa/spitz.c

   1 /*
   2  * Support for Sharp SL-Cxx00 Series of PDAs
   3  * Models: SL-C3000 (Spitz), SL-C1000 (Akita) and SL-C3100 (Borzoi)
   4  *
   5  * Copyright (c) 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/delay.h>
  19 #include <linux/major.h>
  20 #include <linux/fs.h>
  21 #include <linux/interrupt.h>
  22 #include <linux/mmc/host.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
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/map.h>
  33 #include <asm/mach/irq.h>
  34
  35 #include <asm/arch/pxa-regs.h>
  36 #include <asm/arch/irda.h>
  37 #include <asm/arch/mmc.h>
  38 #include <asm/arch/ohci.h>
  39 #include <asm/arch/udc.h>
  40 #include <asm/arch/pxafb.h>
  41 #include <asm/arch/akita.h>
  42 #include <asm/arch/spitz.h>
  43 #include <asm/arch/sharpsl.h>
  44
  45 #include <asm/mach/sharpsl_param.h>
  46 #include <asm/hardware/scoop.h>
  47
  48 #include "generic.h"
  49 #include "sharpsl.h"
  50
  51 /*
  52  * Spitz SCOOP Device #1
  53  */
  54 static struct resource spitz_scoop_resources[] = {
  55         [0] = {
  56                 .start          = 0x10800000,
  57                 .end            = 0x10800fff,
  58                 .flags          = IORESOURCE_MEM,
  59         },
  60 };
  61
  62 static struct scoop_config spitz_scoop_setup = {
  63         .io_dir         = SPITZ_SCP_IO_DIR,
  64         .io_out         = SPITZ_SCP_IO_OUT,
  65         .suspend_clr = SPITZ_SCP_SUS_CLR,
  66         .suspend_set = SPITZ_SCP_SUS_SET,
  67 };
  68
  69 struct platform_device spitzscoop_device = {
  70         .name           = "sharp-scoop",
  71         .id             = 0,
  72         .dev            = {
  73                 .platform_data  = &spitz_scoop_setup,
  74         },
  75         .num_resources  = ARRAY_SIZE(spitz_scoop_resources),
  76         .resource       = spitz_scoop_resources,
  77 };
  78
  79 /*
  80  * Spitz SCOOP Device #2
  81  */
  82 static struct resource spitz_scoop2_resources[] = {
  83         [0] = {
  84                 .start          = 0x08800040,
  85                 .end            = 0x08800fff,
  86                 .flags          = IORESOURCE_MEM,
  87         },
  88 };
  89
  90 static struct scoop_config spitz_scoop2_setup = {
  91         .io_dir         = SPITZ_SCP2_IO_DIR,
  92         .io_out         = SPITZ_SCP2_IO_OUT,
  93         .suspend_clr = SPITZ_SCP2_SUS_CLR,
  94         .suspend_set = SPITZ_SCP2_SUS_SET,
  95 };
  96
  97 struct platform_device spitzscoop2_device = {
  98         .name           = "sharp-scoop",
  99         .id             = 1,
 100         .dev            = {
 101                 .platform_data  = &spitz_scoop2_setup,
 102         },
 103         .num_resources  = ARRAY_SIZE(spitz_scoop2_resources),
 104         .resource       = spitz_scoop2_resources,
 105 };
 106
 107 #define SPITZ_PWR_SD 0x01
 108 #define SPITZ_PWR_CF 0x02
 109
 110 /* Power control is shared with between one of the CF slots and SD */
 111 static void spitz_card_pwr_ctrl(int device, unsigned short new_cpr)
 112 {
 113         unsigned short cpr = read_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR);
 114
 115         if (new_cpr & 0x0007) {
 116                 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
 117                 if (!(cpr & 0x0002) && !(cpr & 0x0004))
 118                         mdelay(5);
 119                 if (device == SPITZ_PWR_CF)
 120                         cpr |= 0x0002;
 121                 if (device == SPITZ_PWR_SD)
 122                         cpr |= 0x0004;
 123                 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
 124         } else {
 125                 if (device == SPITZ_PWR_CF)
 126                         cpr &= ~0x0002;
 127                 if (device == SPITZ_PWR_SD)
 128                         cpr &= ~0x0004;
 129                 if (!(cpr & 0x0002) && !(cpr & 0x0004)) {
 130                         write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, 0x0000);
 131                         mdelay(1);
 132                         reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
 133                 } else {
 134                         write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
 135                 }
 136         }
 137 }
 138
 139 static void spitz_pcmcia_init(void)
 140 {
 141         /* Setup default state of GPIO outputs
 142            before we enable them as outputs. */
 143         GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
 144                 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
 145                 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO54_nPCE_2);
 146         GPSR(GPIO85_nPCE_1) = GPIO_bit(GPIO85_nPCE_1);
 147
 148         pxa_gpio_mode(GPIO48_nPOE_MD);
 149         pxa_gpio_mode(GPIO49_nPWE_MD);
 150         pxa_gpio_mode(GPIO50_nPIOR_MD);
 151         pxa_gpio_mode(GPIO51_nPIOW_MD);
 152         pxa_gpio_mode(GPIO55_nPREG_MD);
 153         pxa_gpio_mode(GPIO56_nPWAIT_MD);
 154         pxa_gpio_mode(GPIO57_nIOIS16_MD);
 155         pxa_gpio_mode(GPIO85_nPCE_1_MD);
 156         pxa_gpio_mode(GPIO54_nPCE_2_MD);
 157         pxa_gpio_mode(GPIO104_pSKTSEL_MD);
 158 }
 159
 160 static void spitz_pcmcia_pwr(struct device *scoop, unsigned short cpr, int nr)
 161 {
 162         /* Only need to override behaviour for slot 0 */
 163         if (nr == 0)
 164                 spitz_card_pwr_ctrl(SPITZ_PWR_CF, cpr);
 165         else
 166                 write_scoop_reg(scoop, SCOOP_CPR, cpr);
 167 }
 168
 169 static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = {
 170 {
 171         .dev        = &spitzscoop_device.dev,
 172         .irq        = SPITZ_IRQ_GPIO_CF_IRQ,
 173         .cd_irq     = SPITZ_IRQ_GPIO_CF_CD,
 174         .cd_irq_str = "PCMCIA0 CD",
 175 },{
 176         .dev        = &spitzscoop2_device.dev,
 177         .irq        = SPITZ_IRQ_GPIO_CF2_IRQ,
 178         .cd_irq     = -1,
 179 },
 180 };
 181
 182 static struct scoop_pcmcia_config spitz_pcmcia_config = {
 183         .devs         = &spitz_pcmcia_scoop[0],
 184         .num_devs     = 2,
 185         .pcmcia_init  = spitz_pcmcia_init,
 186         .power_ctrl   = spitz_pcmcia_pwr,
 187 };
 188
 189 EXPORT_SYMBOL(spitzscoop_device);
 190 EXPORT_SYMBOL(spitzscoop2_device);
 191
 192
 193 /*
 194  * Spitz SSP Device
 195  *
 196  * Set the parent as the scoop device because a lot of SSP devices
 197  * also use scoop functions and this makes the power up/down order
 198  * work correctly.
 199  */
 200 struct platform_device spitzssp_device = {
 201         .name           = "corgi-ssp",
 202         .dev            = {
 203                 .parent = &spitzscoop_device.dev,
 204         },
 205         .id             = -1,
 206 };
 207
 208 struct corgissp_machinfo spitz_ssp_machinfo = {
 209         .port           = 2,
 210         .cs_lcdcon      = SPITZ_GPIO_LCDCON_CS,
 211         .cs_ads7846     = SPITZ_GPIO_ADS7846_CS,
 212         .cs_max1111     = SPITZ_GPIO_MAX1111_CS,
 213         .clk_lcdcon     = 520,
 214         .clk_ads7846    = 14,
 215         .clk_max1111    = 56,
 216 };
 217
 218
 219 /*
 220  * Spitz Backlight Device
 221  */
 222 static struct corgibl_machinfo spitz_bl_machinfo = {
 223         .default_intensity = 0x1f,
 224         .limit_mask = 0x0b,
 225         .max_intensity = 0x2f,
 226 };
 227
 228 static struct platform_device spitzbl_device = {
 229         .name           = "corgi-bl",
 230         .dev            = {
 231                 .platform_data  = &spitz_bl_machinfo,
 232         },
 233         .id             = -1,
 234 };
 235
 236
 237 /*
 238  * Spitz Keyboard Device
 239  */
 240 static struct platform_device spitzkbd_device = {
 241         .name           = "spitz-keyboard",
 242         .id             = -1,
 243 };
 244
 245
 246 /*
 247  * Spitz LEDs
 248  */
 249 static struct platform_device spitzled_device = {
 250         .name           = "spitz-led",
 251         .id             = -1,
 252 };
 253
 254 /*
 255  * Spitz Touch Screen Device
 256  */
 257 static struct resource spitzts_resources[] = {
 258         [0] = {
 259                 .start          = SPITZ_IRQ_GPIO_TP_INT,
 260                 .end            = SPITZ_IRQ_GPIO_TP_INT,
 261                 .flags          = IORESOURCE_IRQ,
 262         },
 263 };
 264
 265 static struct corgits_machinfo  spitz_ts_machinfo = {
 266         .get_hsync_len   = spitz_get_hsync_len,
 267         .put_hsync       = spitz_put_hsync,
 268         .wait_hsync      = spitz_wait_hsync,
 269 };
 270
 271 static struct platform_device spitzts_device = {
 272         .name           = "corgi-ts",
 273         .dev            = {
 274                 .parent = &spitzssp_device.dev,
 275                 .platform_data  = &spitz_ts_machinfo,
 276         },
 277         .id             = -1,
 278         .num_resources  = ARRAY_SIZE(spitzts_resources),
 279         .resource       = spitzts_resources,
 280 };
 281
 282
 283 /*
 284  * MMC/SD Device
 285  *
 286  * The card detect interrupt isn't debounced so we delay it by 250ms
 287  * to give the card a chance to fully insert/eject.
 288  */
 289
 290 static struct pxamci_platform_data spitz_mci_platform_data;
 291
 292 static int spitz_mci_init(struct device *dev, irqreturn_t (*spitz_detect_int)(int, void *, struct pt_regs *), void *data)
 293 {
 294         int err;
 295
 296         /* setup GPIO for PXA27x MMC controller */
 297         pxa_gpio_mode(GPIO32_MMCCLK_MD);
 298         pxa_gpio_mode(GPIO112_MMCCMD_MD);
 299         pxa_gpio_mode(GPIO92_MMCDAT0_MD);
 300         pxa_gpio_mode(GPIO109_MMCDAT1_MD);
 301         pxa_gpio_mode(GPIO110_MMCDAT2_MD);
 302         pxa_gpio_mode(GPIO111_MMCDAT3_MD);
 303         pxa_gpio_mode(SPITZ_GPIO_nSD_DETECT | GPIO_IN);
 304         pxa_gpio_mode(SPITZ_GPIO_nSD_WP | GPIO_IN);
 305
 306         spitz_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 307
 308         err = request_irq(SPITZ_IRQ_GPIO_nSD_DETECT, spitz_detect_int,
 309                           SA_INTERRUPT | SA_TRIGGER_RISING | SA_TRIGGER_FALLING,
 310                           "MMC card detect", data);
 311         if (err) {
 312                 printk(KERN_ERR "spitz_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 313                 return -1;
 314         }
 315
 316         return 0;
 317 }
 318
 319 static void spitz_mci_setpower(struct device *dev, unsigned int vdd)
 320 {
 321         struct pxamci_platform_data* p_d = dev->platform_data;
 322
 323         if (( 1 << vdd) & p_d->ocr_mask)
 324                 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0004);
 325         else
 326                 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0000);
 327 }
 328
 329 static int spitz_mci_get_ro(struct device *dev)
 330 {
 331         return GPLR(SPITZ_GPIO_nSD_WP) & GPIO_bit(SPITZ_GPIO_nSD_WP);
 332 }
 333
 334 static void spitz_mci_exit(struct device *dev, void *data)
 335 {
 336         free_irq(SPITZ_IRQ_GPIO_nSD_DETECT, data);
 337 }
 338
 339 static struct pxamci_platform_data spitz_mci_platform_data = {
 340         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 341         .init           = spitz_mci_init,
 342         .get_ro         = spitz_mci_get_ro,
 343         .setpower       = spitz_mci_setpower,
 344         .exit           = spitz_mci_exit,
 345 };
 346
 347
 348 /*
 349  * USB Host (OHCI)
 350  */
 351 static int spitz_ohci_init(struct device *dev)
 352 {
 353         /* Only Port 2 is connected */
 354         pxa_gpio_mode(SPITZ_GPIO_USB_CONNECT | GPIO_IN);
 355         pxa_gpio_mode(SPITZ_GPIO_USB_HOST | GPIO_OUT);
 356         pxa_gpio_mode(SPITZ_GPIO_USB_DEVICE | GPIO_IN);
 357
 358         /* Setup USB Port 2 Output Control Register */
 359         UP2OCR = UP2OCR_HXS | UP2OCR_HXOE | UP2OCR_DPPDE | UP2OCR_DMPDE;
 360
 361         GPSR(SPITZ_GPIO_USB_HOST) = GPIO_bit(SPITZ_GPIO_USB_HOST);
 362
 363         UHCHR = (UHCHR) &
 364                 ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE);
 365
 366         UHCRHDA |= UHCRHDA_NOCP;
 367
 368         return 0;
 369 }
 370
 371 static struct pxaohci_platform_data spitz_ohci_platform_data = {
 372         .port_mode      = PMM_NPS_MODE,
 373         .init           = spitz_ohci_init,
 374         .power_budget   = 150,
 375 };
 376
 377
 378 /*
 379  * Irda
 380  */
 381 static void spitz_irda_transceiver_mode(struct device *dev, int mode)
 382 {
 383         if (mode & IR_OFF)
 384                 set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
 385         else
 386                 reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
 387 }
 388
 389 #ifdef CONFIG_MACH_AKITA
 390 static void akita_irda_transceiver_mode(struct device *dev, int mode)
 391 {
 392         if (mode & IR_OFF)
 393                 akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
 394         else
 395                 akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
 396 }
 397 #endif
 398
 399 static struct pxaficp_platform_data spitz_ficp_platform_data = {
 400         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 401         .transceiver_mode = spitz_irda_transceiver_mode,
 402 };
 403
 404
 405 /*
 406  * Spitz PXA Framebuffer
 407  */
 408 static struct pxafb_mach_info spitz_pxafb_info __initdata = {
 409         .pixclock       = 19231,
 410         .xres           = 480,
 411         .yres           = 640,
 412         .bpp            = 16,
 413         .hsync_len      = 40,
 414         .left_margin    = 46,
 415         .right_margin   = 125,
 416         .vsync_len      = 3,
 417         .upper_margin   = 1,
 418         .lower_margin   = 0,
 419         .sync           = 0,
 420         .lccr0          = LCCR0_Color | LCCR0_Sngl | LCCR0_Act | LCCR0_LDDALT | LCCR0_OUC | LCCR0_CMDIM | LCCR0_RDSTM,
 421         .lccr3          = LCCR3_PixRsEdg | LCCR3_OutEnH,
 422         .pxafb_lcd_power = spitz_lcd_power,
 423 };
 424
 425
 426 static struct platform_device *devices[] __initdata = {
 427         &spitzscoop_device,
 428         &spitzssp_device,
 429         &spitzkbd_device,
 430         &spitzts_device,
 431         &spitzbl_device,
 432         &spitzled_device,
 433 };
 434
 435 static void __init common_init(void)
 436 {
 437         PMCR = 0x00;
 438
 439         /* setup sleep mode values */
 440         PWER  = 0x00000002;
 441         PFER  = 0x00000000;
 442         PRER  = 0x00000002;
 443         PGSR0 = 0x0158C000;
 444         PGSR1 = 0x00FF0080;
 445         PGSR2 = 0x0001C004;
 446
 447         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
 448         PCFR |= PCFR_OPDE;
 449
 450         corgi_ssp_set_machinfo(&spitz_ssp_machinfo);
 451
 452         pxa_gpio_mode(SPITZ_GPIO_HSYNC | GPIO_IN);
 453
 454         platform_add_devices(devices, ARRAY_SIZE(devices));
 455         pxa_set_mci_info(&spitz_mci_platform_data);
 456         pxa_set_ohci_info(&spitz_ohci_platform_data);
 457         pxa_set_ficp_info(&spitz_ficp_platform_data);
 458         set_pxa_fb_parent(&spitzssp_device.dev);
 459         set_pxa_fb_info(&spitz_pxafb_info);
 460 }
 461
 462 static void __init spitz_init(void)
 463 {
 464         platform_scoop_config = &spitz_pcmcia_config;
 465
 466         spitz_bl_machinfo.set_bl_intensity = spitz_bl_set_intensity;
 467
 468         common_init();
 469
 470         platform_device_register(&spitzscoop2_device);
 471 }
 472
 473 #ifdef CONFIG_MACH_AKITA
 474 /*
 475  * Akita IO Expander
 476  */
 477 struct platform_device akitaioexp_device = {
 478         .name           = "akita-ioexp",
 479         .id             = -1,
 480 };
 481
 482 EXPORT_SYMBOL_GPL(akitaioexp_device);
 483
 484 static void __init akita_init(void)
 485 {
 486         spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode;
 487
 488         /* We just pretend the second element of the array doesn't exist */
 489         spitz_pcmcia_config.num_devs = 1;
 490         platform_scoop_config = &spitz_pcmcia_config;
 491         spitz_bl_machinfo.set_bl_intensity = akita_bl_set_intensity;
 492
 493         platform_device_register(&akitaioexp_device);
 494
 495         spitzscoop_device.dev.parent = &akitaioexp_device.dev;
 496         common_init();
 497 }
 498 #endif
 499
 500
 501 static void __init fixup_spitz(struct machine_desc *desc,
 502                 struct tag *tags, char **cmdline, struct meminfo *mi)
 503 {
 504         sharpsl_save_param();
 505         mi->nr_banks = 1;
 506         mi->bank[0].start = 0xa0000000;
 507         mi->bank[0].node = 0;
 508         mi->bank[0].size = (64*1024*1024);
 509 }
 510
 511 #ifdef CONFIG_MACH_SPITZ
 512 MACHINE_START(SPITZ, "SHARP Spitz")
 513         .phys_io        = 0x40000000,
 514         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 515         .fixup          = fixup_spitz,
 516         .map_io         = pxa_map_io,
 517         .init_irq       = pxa_init_irq,
 518         .init_machine   = spitz_init,
 519         .timer          = &pxa_timer,
 520 MACHINE_END
 521 #endif
 522
 523 #ifdef CONFIG_MACH_BORZOI
 524 MACHINE_START(BORZOI, "SHARP Borzoi")
 525         .phys_io        = 0x40000000,
 526         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 527         .fixup          = fixup_spitz,
 528         .map_io         = pxa_map_io,
 529         .init_irq       = pxa_init_irq,
 530         .init_machine   = spitz_init,
 531         .timer          = &pxa_timer,
 532 MACHINE_END
 533 #endif
 534
 535 #ifdef CONFIG_MACH_AKITA
 536 MACHINE_START(AKITA, "SHARP Akita")
 537         .phys_io        = 0x40000000,
 538         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 539         .fixup          = fixup_spitz,
 540         .map_io         = pxa_map_io,
 541         .init_irq       = pxa_init_irq,
 542         .init_machine   = akita_init,
 543         .timer          = &pxa_timer,
 544 MACHINE_END
 545 #endif