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