arch/arm/mach-pxa/trizeps4.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  *  linux/arch/arm/mach-pxa/trizeps4.c
   4  *
   5  *  Support for the Keith und Koep Trizeps4 Module Platform.
   6  *
   7  *  Author:     Jürgen Schindele
   8  *  Created:    20 02, 2006
   9  *  Copyright:  Jürgen Schindele
  10  */
  11
  12 #include <linux/init.h>
  13 #include <linux/kernel.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/interrupt.h>
  16 #include <linux/leds.h>
  17 #include <linux/export.h>
  18 #include <linux/sched.h>
  19 #include <linux/bitops.h>
  20 #include <linux/fb.h>
  21 #include <linux/ioport.h>
  22 #include <linux/delay.h>
  23 #include <linux/gpio.h>
  24 #include <linux/dm9000.h>
  25 #include <linux/mtd/physmap.h>
  26 #include <linux/mtd/partitions.h>
  27 #include <linux/regulator/machine.h>
  28 #include <linux/platform_data/i2c-pxa.h>
  29
  30 #include <asm/types.h>
  31 #include <asm/setup.h>
  32 #include <asm/memory.h>
  33 #include <asm/mach-types.h>
  34 #include <asm/irq.h>
  35 #include <linux/sizes.h>
  36
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/map.h>
  39 #include <asm/mach/irq.h>
  40 #include <asm/mach/flash.h>
  41
  42 #include "pxa27x.h"
  43 #include <mach/trizeps4.h>
  44 #include <mach/audio.h>
  45 #include <linux/platform_data/video-pxafb.h>
  46 #include <linux/platform_data/mmc-pxamci.h>
  47 #include <linux/platform_data/irda-pxaficp.h>
  48 #include <linux/platform_data/usb-ohci-pxa27x.h>
  49 #include <mach/smemc.h>
  50
  51 #include "generic.h"
  52 #include "devices.h"
  53
  54 /*      comment out the following line if you want to use the
  55  *      Standard UART from PXA for serial / irda transmission
  56  *      and acivate it if you have status leds connected */
  57 #define STATUS_LEDS_ON_STUART_PINS 1
  58
  59 /*****************************************************************************
  60  * MultiFunctionPins of CPU
  61  *****************************************************************************/
  62 static unsigned long trizeps4_pin_config[] __initdata = {
  63         /* Chip Selects */
  64         GPIO15_nCS_1,           /* DiskOnChip CS */
  65         GPIO93_GPIO,            /* TRIZEPS4_DOC_IRQ */
  66         GPIO94_GPIO,            /* DOC lock */
  67
  68         GPIO78_nCS_2,           /* DM9000 CS */
  69         GPIO101_GPIO,           /* TRIZEPS4_ETH_IRQ */
  70
  71         GPIO79_nCS_3,           /* Logic CS */
  72         GPIO0_GPIO | WAKEUP_ON_EDGE_RISE,       /* Logic irq */
  73
  74         /* AC97 */
  75         GPIO28_AC97_BITCLK,
  76         GPIO29_AC97_SDATA_IN_0,
  77         GPIO30_AC97_SDATA_OUT,
  78         GPIO31_AC97_SYNC,
  79
  80         /* LCD - 16bpp Active TFT */
  81         GPIOxx_LCD_TFT_16BPP,
  82
  83         /* UART */
  84         GPIO9_FFUART_CTS,
  85         GPIO10_FFUART_DCD,
  86         GPIO16_FFUART_TXD,
  87         GPIO33_FFUART_DSR,
  88         GPIO38_FFUART_RI,
  89         GPIO82_FFUART_DTR,
  90         GPIO83_FFUART_RTS,
  91         GPIO96_FFUART_RXD,
  92
  93         GPIO42_BTUART_RXD,
  94         GPIO43_BTUART_TXD,
  95         GPIO44_BTUART_CTS,
  96         GPIO45_BTUART_RTS,
  97 #ifdef STATUS_LEDS_ON_STUART_PINS
  98         GPIO46_GPIO,
  99         GPIO47_GPIO,
 100 #else
 101         GPIO46_STUART_RXD,
 102         GPIO47_STUART_TXD,
 103 #endif
 104         /* PCMCIA */
 105         GPIO11_GPIO,                    /* TRIZEPS4_CD_IRQ */
 106         GPIO13_GPIO,                    /* TRIZEPS4_READY_NINT */
 107         GPIO48_nPOE,
 108         GPIO49_nPWE,
 109         GPIO50_nPIOR,
 110         GPIO51_nPIOW,
 111         GPIO54_nPCE_2,
 112         GPIO55_nPREG,
 113         GPIO56_nPWAIT,
 114         GPIO57_nIOIS16,
 115         GPIO102_nPCE_1,
 116         GPIO104_PSKTSEL,
 117
 118         /* MultiMediaCard */
 119         GPIO32_MMC_CLK,
 120         GPIO92_MMC_DAT_0,
 121         GPIO109_MMC_DAT_1,
 122         GPIO110_MMC_DAT_2,
 123         GPIO111_MMC_DAT_3,
 124         GPIO112_MMC_CMD,
 125         GPIO12_GPIO,                    /* TRIZEPS4_MMC_IRQ */
 126
 127         /* USB OHCI */
 128         GPIO88_USBH1_PWR,               /* USBHPWR1 */
 129         GPIO89_USBH1_PEN,               /* USBHPEN1 */
 130
 131         /* I2C */
 132         GPIO117_I2C_SCL,
 133         GPIO118_I2C_SDA,
 134 };
 135
 136 static unsigned long trizeps4wl_pin_config[] __initdata = {
 137         /* SSP 2 */
 138         GPIO14_SSP2_SFRM,
 139         GPIO19_SSP2_SCLK,
 140         GPIO53_GPIO,                    /* TRIZEPS4_SPI_IRQ */
 141         GPIO86_SSP2_RXD,
 142         GPIO87_SSP2_TXD,
 143 };
 144
 145 /****************************************************************************
 146  * ONBOARD FLASH
 147  ****************************************************************************/
 148 static struct mtd_partition trizeps4_partitions[] = {
 149         {
 150                 .name =         "Bootloader",
 151                 .offset =       0x00000000,
 152                 .size =         0x00040000,
 153                 .mask_flags =   MTD_WRITEABLE  /* force read-only */
 154         }, {
 155                 .name =         "Backup",
 156                 .offset =       0x00040000,
 157                 .size =         0x00040000,
 158         }, {
 159                 .name =         "Image",
 160                 .offset =       0x00080000,
 161                 .size =         0x01080000,
 162         }, {
 163                 .name =         "IPSM",
 164                 .offset =       0x01100000,
 165                 .size =         0x00e00000,
 166         }, {
 167                 .name =         "Registry",
 168                 .offset =       0x01f00000,
 169                 .size =         MTDPART_SIZ_FULL,
 170         }
 171 };
 172
 173 static struct physmap_flash_data trizeps4_flash_data[] = {
 174         {
 175                 .width          = 4,                    /* bankwidth in bytes */
 176                 .parts          = trizeps4_partitions,
 177                 .nr_parts       = ARRAY_SIZE(trizeps4_partitions)
 178         }
 179 };
 180
 181 static struct resource flash_resource = {
 182         .start  = PXA_CS0_PHYS,
 183         .end    = PXA_CS0_PHYS + SZ_32M - 1,
 184         .flags  = IORESOURCE_MEM,
 185 };
 186
 187 static struct platform_device flash_device = {
 188         .name           = "physmap-flash",
 189         .id             = 0,
 190         .dev = {
 191                 .platform_data = trizeps4_flash_data,
 192         },
 193         .resource = &flash_resource,
 194         .num_resources = 1,
 195 };
 196
 197 /****************************************************************************
 198  * DAVICOM DM9000 Ethernet
 199  ****************************************************************************/
 200 static struct resource dm9000_resources[] = {
 201         [0] = {
 202                 .start  = TRIZEPS4_ETH_PHYS+0x300,
 203                 .end    = TRIZEPS4_ETH_PHYS+0x400-1,
 204                 .flags  = IORESOURCE_MEM,
 205         },
 206         [1] = {
 207                 .start  = TRIZEPS4_ETH_PHYS+0x8300,
 208                 .end    = TRIZEPS4_ETH_PHYS+0x8400-1,
 209                 .flags  = IORESOURCE_MEM,
 210         },
 211         [2] = {
 212                 .start  = TRIZEPS4_ETH_IRQ,
 213                 .end    = TRIZEPS4_ETH_IRQ,
 214                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 215         },
 216 };
 217
 218 static struct dm9000_plat_data tri_dm9000_platdata = {
 219         .flags          = DM9000_PLATF_32BITONLY,
 220 };
 221
 222 static struct platform_device dm9000_device = {
 223         .name           = "dm9000",
 224         .id             = -1,
 225         .num_resources  = ARRAY_SIZE(dm9000_resources),
 226         .resource       = dm9000_resources,
 227         .dev            = {
 228                 .platform_data = &tri_dm9000_platdata,
 229         }
 230 };
 231
 232 /****************************************************************************
 233  * LED's on GPIO pins of PXA
 234  ****************************************************************************/
 235 static struct gpio_led trizeps4_led[] = {
 236 #ifdef STATUS_LEDS_ON_STUART_PINS
 237         {
 238                 .name = "led0:orange:heartbeat",        /* */
 239                 .default_trigger = "heartbeat",
 240                 .gpio = GPIO_HEARTBEAT_LED,
 241                 .active_low = 1,
 242         },
 243         {
 244                 .name = "led1:yellow:cpubusy",          /* */
 245                 .default_trigger = "cpu-busy",
 246                 .gpio = GPIO_SYS_BUSY_LED,
 247                 .active_low = 1,
 248         },
 249 #endif
 250 };
 251
 252 static struct gpio_led_platform_data trizeps4_led_data = {
 253         .leds           = trizeps4_led,
 254         .num_leds       = ARRAY_SIZE(trizeps4_led),
 255 };
 256
 257 static struct platform_device leds_devices = {
 258         .name           = "leds-gpio",
 259         .id             = -1,
 260         .dev            = {
 261                 .platform_data  = &trizeps4_led_data,
 262         },
 263 };
 264
 265 static struct platform_device *trizeps4_devices[] __initdata = {
 266         &flash_device,
 267         &dm9000_device,
 268         &leds_devices,
 269 };
 270
 271 static struct platform_device *trizeps4wl_devices[] __initdata = {
 272         &flash_device,
 273         &leds_devices,
 274 };
 275
 276 static short trizeps_conxs_bcr;
 277
 278 /* PCCARD power switching supports only 3,3V */
 279 void board_pcmcia_power(int power)
 280 {
 281         if (power) {
 282                 /* switch power on, put in reset and enable buffers */
 283                 trizeps_conxs_bcr |= power;
 284                 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
 285                 trizeps_conxs_bcr &= ~ConXS_BCR_CF_BUF_EN;
 286                 BCR_writew(trizeps_conxs_bcr);
 287                 /* wait a little */
 288                 udelay(2000);
 289                 /* take reset away */
 290                 trizeps_conxs_bcr &= ~ConXS_BCR_CF_RESET;
 291                 BCR_writew(trizeps_conxs_bcr);
 292                 udelay(2000);
 293         } else {
 294                 /* put in reset */
 295                 trizeps_conxs_bcr |= ConXS_BCR_CF_RESET;
 296                 BCR_writew(trizeps_conxs_bcr);
 297                 udelay(1000);
 298                 /* switch power off */
 299                 trizeps_conxs_bcr &= ~0xf;
 300                 BCR_writew(trizeps_conxs_bcr);
 301         }
 302         pr_debug("%s: o%s 0x%x\n", __func__, power ? "n" : "ff",
 303                         trizeps_conxs_bcr);
 304 }
 305 EXPORT_SYMBOL(board_pcmcia_power);
 306
 307 /* backlight power switching for LCD panel */
 308 static void board_backlight_power(int on)
 309 {
 310         if (on)
 311                 trizeps_conxs_bcr |= ConXS_BCR_L_DISP;
 312         else
 313                 trizeps_conxs_bcr &= ~ConXS_BCR_L_DISP;
 314
 315         pr_debug("%s: o%s 0x%x\n", __func__, on ? "n" : "ff",
 316                         trizeps_conxs_bcr);
 317         BCR_writew(trizeps_conxs_bcr);
 318 }
 319
 320 /* a I2C based RTC is known on CONXS board */
 321 static struct i2c_board_info trizeps4_i2c_devices[] __initdata = {
 322         { I2C_BOARD_INFO("rtc-pcf8593", 0x51) }
 323 };
 324
 325 /****************************************************************************
 326  * MMC card slot external to module
 327  ****************************************************************************/
 328 static int trizeps4_mci_init(struct device *dev, irq_handler_t mci_detect_int,
 329                 void *data)
 330 {
 331         int err;
 332
 333         err = request_irq(TRIZEPS4_MMC_IRQ, mci_detect_int,
 334                           IRQF_TRIGGER_RISING, "MMC card detect", data);
 335         if (err) {
 336                 printk(KERN_ERR "trizeps4_mci_init: MMC/SD: can't request"
 337                                                 "MMC card detect IRQ\n");
 338                 return -1;
 339         }
 340         return 0;
 341 }
 342
 343 static void trizeps4_mci_exit(struct device *dev, void *data)
 344 {
 345         free_irq(TRIZEPS4_MMC_IRQ, data);
 346 }
 347
 348 static struct pxamci_platform_data trizeps4_mci_platform_data = {
 349         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 350         .detect_delay_ms= 10,
 351         .init           = trizeps4_mci_init,
 352         .exit           = trizeps4_mci_exit,
 353         .get_ro         = NULL, /* write-protection not supported */
 354         .setpower       = NULL, /* power-switching not supported */
 355 };
 356
 357 /****************************************************************************
 358  * IRDA mode switching on stuart
 359  ****************************************************************************/
 360 #ifndef STATUS_LEDS_ON_STUART_PINS
 361 static short trizeps_conxs_ircr;
 362
 363 static int trizeps4_irda_startup(struct device *dev)
 364 {
 365         trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
 366         IRCR_writew(trizeps_conxs_ircr);
 367         return 0;
 368 }
 369
 370 static void trizeps4_irda_shutdown(struct device *dev)
 371 {
 372         trizeps_conxs_ircr |= ConXS_IRCR_SD;
 373         IRCR_writew(trizeps_conxs_ircr);
 374 }
 375
 376 static void trizeps4_irda_transceiver_mode(struct device *dev, int mode)
 377 {
 378         unsigned long flags;
 379
 380         local_irq_save(flags);
 381         /* Switch mode */
 382         if (mode & IR_SIRMODE)
 383                 trizeps_conxs_ircr &= ~ConXS_IRCR_MODE; /* Slow mode */
 384         else if (mode & IR_FIRMODE)
 385                 trizeps_conxs_ircr |= ConXS_IRCR_MODE;  /* Fast mode */
 386
 387         /* Switch power */
 388         if (mode & IR_OFF)
 389                 trizeps_conxs_ircr |= ConXS_IRCR_SD;
 390         else
 391                 trizeps_conxs_ircr &= ~ConXS_IRCR_SD;
 392
 393         IRCR_writew(trizeps_conxs_ircr);
 394         local_irq_restore(flags);
 395
 396         pxa2xx_transceiver_mode(dev, mode);
 397 }
 398
 399 static struct pxaficp_platform_data trizeps4_ficp_platform_data = {
 400         .gpio_pwdown            = -1,
 401         .transceiver_cap        = IR_SIRMODE | IR_FIRMODE | IR_OFF,
 402         .transceiver_mode       = trizeps4_irda_transceiver_mode,
 403         .startup                = trizeps4_irda_startup,
 404         .shutdown               = trizeps4_irda_shutdown,
 405 };
 406 #endif
 407
 408 /****************************************************************************
 409  * OHCI USB port
 410  ****************************************************************************/
 411 static struct pxaohci_platform_data trizeps4_ohci_platform_data = {
 412         .port_mode      = PMM_PERPORT_MODE,
 413         .flags          = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
 414 };
 415
 416 static struct map_desc trizeps4_io_desc[] __initdata = {
 417         {       /* ConXS CFSR */
 418                 .virtual        = TRIZEPS4_CFSR_VIRT,
 419                 .pfn            = __phys_to_pfn(TRIZEPS4_CFSR_PHYS),
 420                 .length         = 0x00001000,
 421                 .type           = MT_DEVICE
 422         },
 423         {       /* ConXS BCR */
 424                 .virtual        = TRIZEPS4_BOCR_VIRT,
 425                 .pfn            = __phys_to_pfn(TRIZEPS4_BOCR_PHYS),
 426                 .length         = 0x00001000,
 427                 .type           = MT_DEVICE
 428         },
 429         {       /* ConXS IRCR */
 430                 .virtual        = TRIZEPS4_IRCR_VIRT,
 431                 .pfn            = __phys_to_pfn(TRIZEPS4_IRCR_PHYS),
 432                 .length         = 0x00001000,
 433                 .type           = MT_DEVICE
 434         },
 435         {       /* ConXS DCR */
 436                 .virtual        = TRIZEPS4_DICR_VIRT,
 437                 .pfn            = __phys_to_pfn(TRIZEPS4_DICR_PHYS),
 438                 .length         = 0x00001000,
 439                 .type           = MT_DEVICE
 440         },
 441         {       /* ConXS UPSR */
 442                 .virtual        = TRIZEPS4_UPSR_VIRT,
 443                 .pfn            = __phys_to_pfn(TRIZEPS4_UPSR_PHYS),
 444                 .length         = 0x00001000,
 445                 .type           = MT_DEVICE
 446         }
 447 };
 448
 449 static struct pxafb_mode_info sharp_lcd_mode = {
 450         .pixclock       = 78000,
 451         .xres           = 640,
 452         .yres           = 480,
 453         .bpp            = 8,
 454         .hsync_len      = 4,
 455         .left_margin    = 4,
 456         .right_margin   = 4,
 457         .vsync_len      = 2,
 458         .upper_margin   = 0,
 459         .lower_margin   = 0,
 460         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 461         .cmap_greyscale = 0,
 462 };
 463
 464 static struct pxafb_mach_info sharp_lcd = {
 465         .modes          = &sharp_lcd_mode,
 466         .num_modes      = 1,
 467         .lcd_conn       = LCD_COLOR_DSTN_16BPP | LCD_PCLK_EDGE_FALL,
 468         .cmap_inverse   = 0,
 469         .cmap_static    = 0,
 470         .pxafb_backlight_power = board_backlight_power,
 471 };
 472
 473 static struct pxafb_mode_info toshiba_lcd_mode = {
 474         .pixclock       = 39720,
 475         .xres           = 640,
 476         .yres           = 480,
 477         .bpp            = 8,
 478         .hsync_len      = 63,
 479         .left_margin    = 12,
 480         .right_margin   = 12,
 481         .vsync_len      = 4,
 482         .upper_margin   = 32,
 483         .lower_margin   = 10,
 484         .sync           = 0,
 485         .cmap_greyscale = 0,
 486 };
 487
 488 static struct pxafb_mach_info toshiba_lcd = {
 489         .modes          = &toshiba_lcd_mode,
 490         .num_modes      = 1,
 491         .lcd_conn       = (LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL),
 492         .cmap_inverse   = 0,
 493         .cmap_static    = 0,
 494         .pxafb_backlight_power = board_backlight_power,
 495 };
 496
 497 static void __init trizeps4_init(void)
 498 {
 499         pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4_pin_config));
 500         if (machine_is_trizeps4wl()) {
 501                 pxa2xx_mfp_config(ARRAY_AND_SIZE(trizeps4wl_pin_config));
 502                 platform_add_devices(trizeps4wl_devices,
 503                                         ARRAY_SIZE(trizeps4wl_devices));
 504         } else {
 505                 platform_add_devices(trizeps4_devices,
 506                                         ARRAY_SIZE(trizeps4_devices));
 507         }
 508
 509         pxa_set_ffuart_info(NULL);
 510         pxa_set_btuart_info(NULL);
 511         pxa_set_stuart_info(NULL);
 512
 513         if (0)  /* dont know how to determine LCD */
 514                 pxa_set_fb_info(NULL, &sharp_lcd);
 515         else
 516                 pxa_set_fb_info(NULL, &toshiba_lcd);
 517
 518         pxa_set_mci_info(&trizeps4_mci_platform_data);
 519 #ifndef STATUS_LEDS_ON_STUART_PINS
 520         pxa_set_ficp_info(&trizeps4_ficp_platform_data);
 521 #endif
 522         pxa_set_ohci_info(&trizeps4_ohci_platform_data);
 523         pxa_set_ac97_info(NULL);
 524         pxa_set_i2c_info(NULL);
 525         i2c_register_board_info(0, trizeps4_i2c_devices,
 526                                         ARRAY_SIZE(trizeps4_i2c_devices));
 527
 528         /* this is the reset value */
 529         trizeps_conxs_bcr = 0x00A0;
 530
 531         BCR_writew(trizeps_conxs_bcr);
 532         board_backlight_power(1);
 533
 534         regulator_has_full_constraints();
 535 }
 536
 537 static void __init trizeps4_map_io(void)
 538 {
 539         pxa27x_map_io();
 540         iotable_init(trizeps4_io_desc, ARRAY_SIZE(trizeps4_io_desc));
 541
 542         if ((__raw_readl(MSC0) & 0x8) && (__raw_readl(BOOT_DEF) & 0x1)) {
 543                 /* if flash is 16 bit wide its a Trizeps4 WL */
 544                 __machine_arch_type = MACH_TYPE_TRIZEPS4WL;
 545                 trizeps4_flash_data[0].width = 2;
 546         } else {
 547                 /* if flash is 32 bit wide its a Trizeps4 */
 548                 __machine_arch_type = MACH_TYPE_TRIZEPS4;
 549                 trizeps4_flash_data[0].width = 4;
 550         }
 551 }
 552
 553 MACHINE_START(TRIZEPS4, "Keith und Koep Trizeps IV module")
 554         /* MAINTAINER("Jürgen Schindele") */
 555         .atag_offset    = 0x100,
 556         .init_machine   = trizeps4_init,
 557         .map_io         = trizeps4_map_io,
 558         .nr_irqs        = PXA_NR_IRQS,
 559         .init_irq       = pxa27x_init_irq,
 560         .handle_irq     = pxa27x_handle_irq,
 561         .init_time      = pxa_timer_init,
 562         .restart        = pxa_restart,
 563 MACHINE_END
 564
 565 MACHINE_START(TRIZEPS4WL, "Keith und Koep Trizeps IV-WL module")
 566         /* MAINTAINER("Jürgen Schindele") */
 567         .atag_offset    = 0x100,
 568         .init_machine   = trizeps4_init,
 569         .map_io         = trizeps4_map_io,
 570         .nr_irqs        = PXA_NR_IRQS,
 571         .init_irq       = pxa27x_init_irq,
 572         .handle_irq     = pxa27x_handle_irq,
 573         .init_time      = pxa_timer_init,
 574         .restart        = pxa_restart,
 575 MACHINE_END