git.oblomov.eu Git - linux-2.6/blob - 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/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                 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | new_cpr);
 130                 if (!(cpr & 0x0002) && !(cpr & 0x0004)) {
 131                         mdelay(1);
 132                         reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
 133                 }
 134         }
 135 }
 136
 137 static void spitz_pcmcia_init(void)
 138 {
 139         /* Setup default state of GPIO outputs
 140            before we enable them as outputs. */
 141         GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
 142                 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
 143                 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO54_nPCE_2);
 144         GPSR(GPIO85_nPCE_1) = GPIO_bit(GPIO85_nPCE_1);
 145
 146         pxa_gpio_mode(GPIO48_nPOE_MD);
 147         pxa_gpio_mode(GPIO49_nPWE_MD);
 148         pxa_gpio_mode(GPIO50_nPIOR_MD);
 149         pxa_gpio_mode(GPIO51_nPIOW_MD);
 150         pxa_gpio_mode(GPIO55_nPREG_MD);
 151         pxa_gpio_mode(GPIO56_nPWAIT_MD);
 152         pxa_gpio_mode(GPIO57_nIOIS16_MD);
 153         pxa_gpio_mode(GPIO85_nPCE_1_MD);
 154         pxa_gpio_mode(GPIO54_nPCE_2_MD);
 155         pxa_gpio_mode(GPIO104_pSKTSEL_MD);
 156 }
 157
 158 static void spitz_pcmcia_pwr(struct device *scoop, unsigned short cpr, int nr)
 159 {
 160         /* Only need to override behaviour for slot 0 */
 161         if (nr == 0)
 162                 spitz_card_pwr_ctrl(SPITZ_PWR_CF, cpr);
 163         else
 164                 write_scoop_reg(scoop, SCOOP_CPR, cpr);
 165 }
 166
 167 static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = {
 168 {
 169         .dev        = &spitzscoop_device.dev,
 170         .irq        = SPITZ_IRQ_GPIO_CF_IRQ,
 171         .cd_irq     = SPITZ_IRQ_GPIO_CF_CD,
 172         .cd_irq_str = "PCMCIA0 CD",
 173 },{
 174         .dev        = &spitzscoop2_device.dev,
 175         .irq        = SPITZ_IRQ_GPIO_CF2_IRQ,
 176         .cd_irq     = -1,
 177 },
 178 };
 179
 180 static struct scoop_pcmcia_config spitz_pcmcia_config = {
 181         .devs         = &spitz_pcmcia_scoop[0],
 182         .num_devs     = 2,
 183         .pcmcia_init  = spitz_pcmcia_init,
 184         .power_ctrl   = spitz_pcmcia_pwr,
 185 };
 186
 187 EXPORT_SYMBOL(spitzscoop_device);
 188 EXPORT_SYMBOL(spitzscoop2_device);
 189
 190
 191 /*
 192  * Spitz SSP Device
 193  *
 194  * Set the parent as the scoop device because a lot of SSP devices
 195  * also use scoop functions and this makes the power up/down order
 196  * work correctly.
 197  */
 198 struct platform_device spitzssp_device = {
 199         .name           = "corgi-ssp",
 200         .dev            = {
 201                 .parent = &spitzscoop_device.dev,
 202         },
 203         .id             = -1,
 204 };
 205
 206 struct corgissp_machinfo spitz_ssp_machinfo = {
 207         .port           = 2,
 208         .cs_lcdcon      = SPITZ_GPIO_LCDCON_CS,
 209         .cs_ads7846     = SPITZ_GPIO_ADS7846_CS,
 210         .cs_max1111     = SPITZ_GPIO_MAX1111_CS,
 211         .clk_lcdcon     = 520,
 212         .clk_ads7846    = 14,
 213         .clk_max1111    = 56,
 214 };
 215
 216
 217 /*
 218  * Spitz Backlight Device
 219  */
 220 static struct corgibl_machinfo spitz_bl_machinfo = {
 221         .max_intensity = 0x2f,
 222 };
 223
 224 static struct platform_device spitzbl_device = {
 225         .name           = "corgi-bl",
 226         .dev            = {
 227                 .platform_data  = &spitz_bl_machinfo,
 228         },
 229         .id             = -1,
 230 };
 231
 232
 233 /*
 234  * Spitz Keyboard Device
 235  */
 236 static struct platform_device spitzkbd_device = {
 237         .name           = "spitz-keyboard",
 238         .id             = -1,
 239 };
 240
 241
 242 /*
 243  * Spitz Touch Screen Device
 244  */
 245 static struct resource spitzts_resources[] = {
 246         [0] = {
 247                 .start          = SPITZ_IRQ_GPIO_TP_INT,
 248                 .end            = SPITZ_IRQ_GPIO_TP_INT,
 249                 .flags          = IORESOURCE_IRQ,
 250         },
 251 };
 252
 253 static struct corgits_machinfo  spitz_ts_machinfo = {
 254         .get_hsync_len   = spitz_get_hsync_len,
 255         .put_hsync       = spitz_put_hsync,
 256         .wait_hsync      = spitz_wait_hsync,
 257 };
 258
 259 static struct platform_device spitzts_device = {
 260         .name           = "corgi-ts",
 261         .dev            = {
 262                 .parent = &spitzssp_device.dev,
 263                 .platform_data  = &spitz_ts_machinfo,
 264         },
 265         .id             = -1,
 266         .num_resources  = ARRAY_SIZE(spitzts_resources),
 267         .resource       = spitzts_resources,
 268 };
 269
 270
 271 /*
 272  * MMC/SD Device
 273  *
 274  * The card detect interrupt isn't debounced so we delay it by 250ms
 275  * to give the card a chance to fully insert/eject.
 276  */
 277
 278 static struct pxamci_platform_data spitz_mci_platform_data;
 279
 280 static int spitz_mci_init(struct device *dev, irqreturn_t (*spitz_detect_int)(int, void *, struct pt_regs *), void *data)
 281 {
 282         int err;
 283
 284         /* setup GPIO for PXA27x MMC controller */
 285         pxa_gpio_mode(GPIO32_MMCCLK_MD);
 286         pxa_gpio_mode(GPIO112_MMCCMD_MD);
 287         pxa_gpio_mode(GPIO92_MMCDAT0_MD);
 288         pxa_gpio_mode(GPIO109_MMCDAT1_MD);
 289         pxa_gpio_mode(GPIO110_MMCDAT2_MD);
 290         pxa_gpio_mode(GPIO111_MMCDAT3_MD);
 291         pxa_gpio_mode(SPITZ_GPIO_nSD_DETECT | GPIO_IN);
 292         pxa_gpio_mode(SPITZ_GPIO_nSD_WP | GPIO_IN);
 293
 294         spitz_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 295
 296         err = request_irq(SPITZ_IRQ_GPIO_nSD_DETECT, spitz_detect_int, SA_INTERRUPT,
 297                              "MMC card detect", data);
 298         if (err) {
 299                 printk(KERN_ERR "spitz_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 300                 return -1;
 301         }
 302
 303         set_irq_type(SPITZ_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
 304
 305         return 0;
 306 }
 307
 308 static void spitz_mci_setpower(struct device *dev, unsigned int vdd)
 309 {
 310         struct pxamci_platform_data* p_d = dev->platform_data;
 311
 312         if (( 1 << vdd) & p_d->ocr_mask)
 313                 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0004);
 314         else
 315                 spitz_card_pwr_ctrl(SPITZ_PWR_SD, 0x0000);
 316 }
 317
 318 static int spitz_mci_get_ro(struct device *dev)
 319 {
 320         return GPLR(SPITZ_GPIO_nSD_WP) & GPIO_bit(SPITZ_GPIO_nSD_WP);
 321 }
 322
 323 static void spitz_mci_exit(struct device *dev, void *data)
 324 {
 325         free_irq(SPITZ_IRQ_GPIO_nSD_DETECT, data);
 326 }
 327
 328 static struct pxamci_platform_data spitz_mci_platform_data = {
 329         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 330         .init           = spitz_mci_init,
 331         .get_ro         = spitz_mci_get_ro,
 332         .setpower       = spitz_mci_setpower,
 333         .exit           = spitz_mci_exit,
 334 };
 335
 336
 337 /*
 338  * Irda
 339  */
 340 static void spitz_irda_transceiver_mode(struct device *dev, int mode)
 341 {
 342         if (mode & IR_OFF)
 343                 set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
 344         else
 345                 reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
 346 }
 347
 348 #ifdef CONFIG_MACH_AKITA
 349 static void akita_irda_transceiver_mode(struct device *dev, int mode)
 350 {
 351         if (mode & IR_OFF)
 352                 akita_set_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
 353         else
 354                 akita_reset_ioexp(&akitaioexp_device.dev, AKITA_IOEXP_IR_ON);
 355 }
 356 #endif
 357
 358 static struct pxaficp_platform_data spitz_ficp_platform_data = {
 359         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 360         .transceiver_mode = spitz_irda_transceiver_mode,
 361 };
 362
 363
 364 /*
 365  * Spitz PXA Framebuffer
 366  */
 367 static struct pxafb_mach_info spitz_pxafb_info __initdata = {
 368         .pixclock       = 19231,
 369         .xres           = 480,
 370         .yres           = 640,
 371         .bpp            = 16,
 372         .hsync_len      = 40,
 373         .left_margin    = 46,
 374         .right_margin   = 125,
 375         .vsync_len      = 3,
 376         .upper_margin   = 1,
 377         .lower_margin   = 0,
 378         .sync           = 0,
 379         .lccr0          = LCCR0_Color | LCCR0_Sngl | LCCR0_Act | LCCR0_LDDALT | LCCR0_OUC | LCCR0_CMDIM | LCCR0_RDSTM,
 380         .lccr3          = LCCR3_PixRsEdg | LCCR3_OutEnH,
 381         .pxafb_lcd_power = spitz_lcd_power,
 382 };
 383
 384
 385 static struct platform_device *devices[] __initdata = {
 386         &spitzscoop_device,
 387         &spitzssp_device,
 388         &spitzkbd_device,
 389         &spitzts_device,
 390         &spitzbl_device,
 391 };
 392
 393 static void __init common_init(void)
 394 {
 395         PMCR = 0x00;
 396
 397         /* setup sleep mode values */
 398         PWER  = 0x00000002;
 399         PFER  = 0x00000000;
 400         PRER  = 0x00000002;
 401         PGSR0 = 0x0158C000;
 402         PGSR1 = 0x00FF0080;
 403         PGSR2 = 0x0001C004;
 404
 405         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
 406         PCFR |= PCFR_OPDE;
 407
 408         corgi_ssp_set_machinfo(&spitz_ssp_machinfo);
 409
 410         pxa_gpio_mode(SPITZ_GPIO_HSYNC | GPIO_IN);
 411
 412         platform_add_devices(devices, ARRAY_SIZE(devices));
 413         pxa_set_mci_info(&spitz_mci_platform_data);
 414         pxa_set_ficp_info(&spitz_ficp_platform_data);
 415         set_pxa_fb_parent(&spitzssp_device.dev);
 416         set_pxa_fb_info(&spitz_pxafb_info);
 417 }
 418
 419 static void __init spitz_init(void)
 420 {
 421         platform_scoop_config = &spitz_pcmcia_config;
 422
 423         spitz_bl_machinfo.set_bl_intensity = spitz_bl_set_intensity;
 424
 425         common_init();
 426
 427         platform_device_register(&spitzscoop2_device);
 428 }
 429
 430 #ifdef CONFIG_MACH_AKITA
 431 /*
 432  * Akita IO Expander
 433  */
 434 struct platform_device akitaioexp_device = {
 435         .name           = "akita-ioexp",
 436         .id             = -1,
 437 };
 438
 439 static void __init akita_init(void)
 440 {
 441         spitz_ficp_platform_data.transceiver_mode = akita_irda_transceiver_mode;
 442
 443         /* We just pretend the second element of the array doesn't exist */
 444         spitz_pcmcia_config.num_devs = 1;
 445         platform_scoop_config = &spitz_pcmcia_config;
 446         spitz_bl_machinfo.set_bl_intensity = akita_bl_set_intensity;
 447
 448         platform_device_register(&akitaioexp_device);
 449
 450         spitzscoop_device.dev.parent = &akitaioexp_device.dev;
 451         common_init();
 452 }
 453 #endif
 454
 455
 456 static void __init fixup_spitz(struct machine_desc *desc,
 457                 struct tag *tags, char **cmdline, struct meminfo *mi)
 458 {
 459         sharpsl_save_param();
 460         mi->nr_banks = 1;
 461         mi->bank[0].start = 0xa0000000;
 462         mi->bank[0].node = 0;
 463         mi->bank[0].size = (64*1024*1024);
 464 }
 465
 466 #ifdef CONFIG_MACH_SPITZ
 467 MACHINE_START(SPITZ, "SHARP Spitz")
 468         .phys_ram       = 0xa0000000,
 469         .phys_io        = 0x40000000,
 470         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 471         .fixup          = fixup_spitz,
 472         .map_io         = pxa_map_io,
 473         .init_irq       = pxa_init_irq,
 474         .init_machine   = spitz_init,
 475         .timer          = &pxa_timer,
 476 MACHINE_END
 477 #endif
 478
 479 #ifdef CONFIG_MACH_BORZOI
 480 MACHINE_START(BORZOI, "SHARP Borzoi")
 481         .phys_ram       = 0xa0000000,
 482         .phys_io        = 0x40000000,
 483         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 484         .fixup          = fixup_spitz,
 485         .map_io         = pxa_map_io,
 486         .init_irq       = pxa_init_irq,
 487         .init_machine   = spitz_init,
 488         .timer          = &pxa_timer,
 489 MACHINE_END
 490 #endif
 491
 492 #ifdef CONFIG_MACH_AKITA
 493 MACHINE_START(AKITA, "SHARP Akita")
 494         .phys_ram       = 0xa0000000,
 495         .phys_io        = 0x40000000,
 496         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 497         .fixup          = fixup_spitz,
 498         .map_io         = pxa_map_io,
 499         .init_irq       = pxa_init_irq,
 500         .init_machine   = akita_init,
 501         .timer          = &pxa_timer,
 502 MACHINE_END
 503 #endif