linux/arch/arm/mach-pxa/poodle.c
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   1// SPDX-License-Identifier: GPL-2.0-only
   2/*
   3 * linux/arch/arm/mach-pxa/poodle.c
   4 *
   5 *  Support for the SHARP Poodle Board.
   6 *
   7 * Based on:
   8 *  linux/arch/arm/mach-pxa/lubbock.c Author:   Nicolas Pitre
   9 *
  10 * Change Log
  11 *  12-Dec-2002 Sharp Corporation for Poodle
  12 *  John Lenz <lenz@cs.wisc.edu> updates to 2.6
  13 */
  14#include <linux/kernel.h>
  15#include <linux/init.h>
  16#include <linux/export.h>
  17#include <linux/platform_device.h>
  18#include <linux/fb.h>
  19#include <linux/pm.h>
  20#include <linux/delay.h>
  21#include <linux/mtd/physmap.h>
  22#include <linux/gpio.h>
  23#include <linux/gpio/machine.h>
  24#include <linux/i2c.h>
  25#include <linux/platform_data/i2c-pxa.h>
  26#include <linux/regulator/machine.h>
  27#include <linux/spi/spi.h>
  28#include <linux/spi/ads7846.h>
  29#include <linux/spi/pxa2xx_spi.h>
  30#include <linux/mtd/sharpsl.h>
  31#include <linux/memblock.h>
  32
  33#include <mach/hardware.h>
  34#include <asm/mach-types.h>
  35#include <asm/irq.h>
  36#include <asm/setup.h>
  37
  38#include <asm/mach/arch.h>
  39#include <asm/mach/map.h>
  40#include <asm/mach/irq.h>
  41
  42#include "pxa25x.h"
  43#include <linux/platform_data/mmc-pxamci.h>
  44#include "udc.h"
  45#include <linux/platform_data/irda-pxaficp.h>
  46#include <mach/poodle.h>
  47#include <linux/platform_data/video-pxafb.h>
  48
  49#include <asm/hardware/scoop.h>
  50#include <asm/hardware/locomo.h>
  51#include <asm/mach/sharpsl_param.h>
  52
  53#include "generic.h"
  54#include "devices.h"
  55
  56static unsigned long poodle_pin_config[] __initdata = {
  57        /* I/O */
  58        GPIO79_nCS_3,
  59        GPIO80_nCS_4,
  60        GPIO18_RDY,
  61
  62        /* Clock */
  63        GPIO12_32KHz,
  64
  65        /* SSP1 */
  66        GPIO23_SSP1_SCLK,
  67        GPIO25_SSP1_TXD,
  68        GPIO26_SSP1_RXD,
  69        GPIO24_GPIO,    /* POODLE_GPIO_TP_CS - SFRM as chip select */
  70
  71        /* I2S */
  72        GPIO28_I2S_BITCLK_OUT,
  73        GPIO29_I2S_SDATA_IN,
  74        GPIO30_I2S_SDATA_OUT,
  75        GPIO31_I2S_SYNC,
  76        GPIO32_I2S_SYSCLK,
  77
  78        /* Infra-Red */
  79        GPIO47_FICP_TXD,
  80        GPIO46_FICP_RXD,
  81
  82        /* FFUART */
  83        GPIO40_FFUART_DTR,
  84        GPIO41_FFUART_RTS,
  85        GPIO39_FFUART_TXD,
  86        GPIO37_FFUART_DSR,
  87        GPIO34_FFUART_RXD,
  88        GPIO35_FFUART_CTS,
  89
  90        /* LCD */
  91        GPIOxx_LCD_TFT_16BPP,
  92
  93        /* PC Card */
  94        GPIO48_nPOE,
  95        GPIO49_nPWE,
  96        GPIO50_nPIOR,
  97        GPIO51_nPIOW,
  98        GPIO52_nPCE_1,
  99        GPIO53_nPCE_2,
 100        GPIO54_nPSKTSEL,
 101        GPIO55_nPREG,
 102        GPIO56_nPWAIT,
 103        GPIO57_nIOIS16,
 104
 105        /* MMC */
 106        GPIO6_MMC_CLK,
 107        GPIO8_MMC_CS0,
 108
 109        /* GPIO */
 110        GPIO9_GPIO,     /* POODLE_GPIO_nSD_DETECT */
 111        GPIO7_GPIO,     /* POODLE_GPIO_nSD_WP */
 112        GPIO3_GPIO,     /* POODLE_GPIO_SD_PWR */
 113        GPIO33_GPIO,    /* POODLE_GPIO_SD_PWR1 */
 114
 115        GPIO20_GPIO,    /* POODLE_GPIO_USB_PULLUP */
 116        GPIO22_GPIO,    /* POODLE_GPIO_IR_ON */
 117};
 118
 119static struct resource poodle_scoop_resources[] = {
 120        [0] = {
 121                .start          = 0x10800000,
 122                .end            = 0x10800fff,
 123                .flags          = IORESOURCE_MEM,
 124        },
 125};
 126
 127static struct scoop_config poodle_scoop_setup = {
 128        .io_dir         = POODLE_SCOOP_IO_DIR,
 129        .io_out         = POODLE_SCOOP_IO_OUT,
 130        .gpio_base      = POODLE_SCOOP_GPIO_BASE,
 131};
 132
 133struct platform_device poodle_scoop_device = {
 134        .name           = "sharp-scoop",
 135        .id             = -1,
 136        .dev            = {
 137                .platform_data  = &poodle_scoop_setup,
 138        },
 139        .num_resources  = ARRAY_SIZE(poodle_scoop_resources),
 140        .resource       = poodle_scoop_resources,
 141};
 142
 143static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
 144{
 145        .dev        = &poodle_scoop_device.dev,
 146        .irq        = POODLE_IRQ_GPIO_CF_IRQ,
 147        .cd_irq     = POODLE_IRQ_GPIO_CF_CD,
 148        .cd_irq_str = "PCMCIA0 CD",
 149},
 150};
 151
 152static struct scoop_pcmcia_config poodle_pcmcia_config = {
 153        .devs         = &poodle_pcmcia_scoop[0],
 154        .num_devs     = 1,
 155};
 156
 157EXPORT_SYMBOL(poodle_scoop_device);
 158
 159
 160static struct platform_device poodle_audio_device = {
 161        .name   = "poodle-audio",
 162        .id     = -1,
 163};
 164
 165/* LoCoMo device */
 166static struct resource locomo_resources[] = {
 167        [0] = {
 168                .start          = 0x10000000,
 169                .end            = 0x10001fff,
 170                .flags          = IORESOURCE_MEM,
 171        },
 172        [1] = {
 173                .start          = PXA_GPIO_TO_IRQ(10),
 174                .end            = PXA_GPIO_TO_IRQ(10),
 175                .flags          = IORESOURCE_IRQ,
 176        },
 177};
 178
 179static struct locomo_platform_data locomo_info = {
 180        .irq_base       = IRQ_BOARD_START,
 181};
 182
 183struct platform_device poodle_locomo_device = {
 184        .name           = "locomo",
 185        .id             = 0,
 186        .num_resources  = ARRAY_SIZE(locomo_resources),
 187        .resource       = locomo_resources,
 188        .dev            = {
 189                .platform_data  = &locomo_info,
 190        },
 191};
 192
 193EXPORT_SYMBOL(poodle_locomo_device);
 194
 195#if defined(CONFIG_SPI_PXA2XX) || defined(CONFIG_SPI_PXA2XX_MODULE)
 196static struct pxa2xx_spi_controller poodle_spi_info = {
 197        .num_chipselect = 1,
 198};
 199
 200static struct ads7846_platform_data poodle_ads7846_info = {
 201        .model                  = 7846,
 202        .vref_delay_usecs       = 100,
 203        .x_plate_ohms           = 419,
 204        .y_plate_ohms           = 486,
 205        .gpio_pendown           = POODLE_GPIO_TP_INT,
 206};
 207
 208static struct pxa2xx_spi_chip poodle_ads7846_chip = {
 209        .gpio_cs                = POODLE_GPIO_TP_CS,
 210};
 211
 212static struct spi_board_info poodle_spi_devices[] = {
 213        {
 214                .modalias       = "ads7846",
 215                .max_speed_hz   = 10000,
 216                .bus_num        = 1,
 217                .platform_data  = &poodle_ads7846_info,
 218                .controller_data= &poodle_ads7846_chip,
 219                .irq            = PXA_GPIO_TO_IRQ(POODLE_GPIO_TP_INT),
 220        },
 221};
 222
 223static void __init poodle_init_spi(void)
 224{
 225        pxa2xx_set_spi_info(1, &poodle_spi_info);
 226        spi_register_board_info(ARRAY_AND_SIZE(poodle_spi_devices));
 227}
 228#else
 229static inline void poodle_init_spi(void) {}
 230#endif
 231
 232/*
 233 * MMC/SD Device
 234 *
 235 * The card detect interrupt isn't debounced so we delay it by 250ms
 236 * to give the card a chance to fully insert/eject.
 237 */
 238static int poodle_mci_init(struct device *dev, irq_handler_t poodle_detect_int, void *data)
 239{
 240        int err;
 241
 242        err = gpio_request(POODLE_GPIO_SD_PWR, "SD_PWR");
 243        if (err)
 244                goto err_free_2;
 245
 246        err = gpio_request(POODLE_GPIO_SD_PWR1, "SD_PWR1");
 247        if (err)
 248                goto err_free_3;
 249
 250        gpio_direction_output(POODLE_GPIO_SD_PWR, 0);
 251        gpio_direction_output(POODLE_GPIO_SD_PWR1, 0);
 252
 253        return 0;
 254
 255err_free_3:
 256        gpio_free(POODLE_GPIO_SD_PWR);
 257err_free_2:
 258        return err;
 259}
 260
 261static int poodle_mci_setpower(struct device *dev, unsigned int vdd)
 262{
 263        struct pxamci_platform_data* p_d = dev->platform_data;
 264
 265        if ((1 << vdd) & p_d->ocr_mask) {
 266                gpio_set_value(POODLE_GPIO_SD_PWR, 1);
 267                mdelay(2);
 268                gpio_set_value(POODLE_GPIO_SD_PWR1, 1);
 269        } else {
 270                gpio_set_value(POODLE_GPIO_SD_PWR1, 0);
 271                gpio_set_value(POODLE_GPIO_SD_PWR, 0);
 272        }
 273
 274        return 0;
 275}
 276
 277static void poodle_mci_exit(struct device *dev, void *data)
 278{
 279        gpio_free(POODLE_GPIO_SD_PWR1);
 280        gpio_free(POODLE_GPIO_SD_PWR);
 281}
 282
 283static struct pxamci_platform_data poodle_mci_platform_data = {
 284        .detect_delay_ms        = 250,
 285        .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 286        .init                   = poodle_mci_init,
 287        .setpower               = poodle_mci_setpower,
 288        .exit                   = poodle_mci_exit,
 289};
 290
 291static struct gpiod_lookup_table poodle_mci_gpio_table = {
 292        .dev_id = "pxa2xx-mci.0",
 293        .table = {
 294                GPIO_LOOKUP("gpio-pxa", POODLE_GPIO_nSD_DETECT,
 295                            "cd", GPIO_ACTIVE_LOW),
 296                GPIO_LOOKUP("gpio-pxa", POODLE_GPIO_nSD_WP,
 297                            "wp", GPIO_ACTIVE_LOW),
 298                { },
 299        },
 300};
 301
 302/*
 303 * Irda
 304 */
 305static struct pxaficp_platform_data poodle_ficp_platform_data = {
 306        .gpio_pwdown            = POODLE_GPIO_IR_ON,
 307        .transceiver_cap        = IR_SIRMODE | IR_OFF,
 308};
 309
 310
 311/*
 312 * USB Device Controller
 313 */
 314static struct pxa2xx_udc_mach_info udc_info __initdata = {
 315        /* no connect GPIO; poodle can't tell connection status */
 316        .gpio_pullup    = POODLE_GPIO_USB_PULLUP,
 317};
 318
 319
 320/* PXAFB device */
 321static struct pxafb_mode_info poodle_fb_mode = {
 322        .pixclock       = 144700,
 323        .xres           = 320,
 324        .yres           = 240,
 325        .bpp            = 16,
 326        .hsync_len      = 7,
 327        .left_margin    = 11,
 328        .right_margin   = 30,
 329        .vsync_len      = 2,
 330        .upper_margin   = 2,
 331        .lower_margin   = 0,
 332        .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 333};
 334
 335static struct pxafb_mach_info poodle_fb_info = {
 336        .modes          = &poodle_fb_mode,
 337        .num_modes      = 1,
 338        .lcd_conn       = LCD_COLOR_TFT_16BPP,
 339};
 340
 341static uint8_t scan_ff_pattern[] = { 0xff, 0xff };
 342
 343static struct nand_bbt_descr sharpsl_bbt = {
 344        .options = 0,
 345        .offs = 4,
 346        .len = 2,
 347        .pattern = scan_ff_pattern
 348};
 349
 350static const char * const probes[] = {
 351        "cmdlinepart",
 352        "ofpart",
 353        "sharpslpart",
 354        NULL,
 355};
 356
 357static struct sharpsl_nand_platform_data sharpsl_nand_platform_data = {
 358        .badblock_pattern       = &sharpsl_bbt,
 359        .part_parsers           = probes,
 360};
 361
 362static struct resource sharpsl_nand_resources[] = {
 363        {
 364                .start  = 0x0C000000,
 365                .end    = 0x0C000FFF,
 366                .flags  = IORESOURCE_MEM,
 367        },
 368};
 369
 370static struct platform_device sharpsl_nand_device = {
 371        .name           = "sharpsl-nand",
 372        .id             = -1,
 373        .resource       = sharpsl_nand_resources,
 374        .num_resources  = ARRAY_SIZE(sharpsl_nand_resources),
 375        .dev.platform_data      = &sharpsl_nand_platform_data,
 376};
 377
 378static struct mtd_partition sharpsl_rom_parts[] = {
 379        {
 380                .name   ="Boot PROM Filesystem",
 381                .offset = 0x00120000,
 382                .size   = MTDPART_SIZ_FULL,
 383        },
 384};
 385
 386static struct physmap_flash_data sharpsl_rom_data = {
 387        .width          = 2,
 388        .nr_parts       = ARRAY_SIZE(sharpsl_rom_parts),
 389        .parts          = sharpsl_rom_parts,
 390};
 391
 392static struct resource sharpsl_rom_resources[] = {
 393        {
 394                .start  = 0x00000000,
 395                .end    = 0x007fffff,
 396                .flags  = IORESOURCE_MEM,
 397        },
 398};
 399
 400static struct platform_device sharpsl_rom_device = {
 401        .name   = "physmap-flash",
 402        .id     = -1,
 403        .resource = sharpsl_rom_resources,
 404        .num_resources = ARRAY_SIZE(sharpsl_rom_resources),
 405        .dev.platform_data = &sharpsl_rom_data,
 406};
 407
 408static struct platform_device *devices[] __initdata = {
 409        &poodle_locomo_device,
 410        &poodle_scoop_device,
 411        &poodle_audio_device,
 412        &sharpsl_nand_device,
 413        &sharpsl_rom_device,
 414};
 415
 416static struct i2c_board_info __initdata poodle_i2c_devices[] = {
 417        { I2C_BOARD_INFO("wm8731", 0x1b) },
 418};
 419
 420static void poodle_poweroff(void)
 421{
 422        pxa_restart(REBOOT_HARD, NULL);
 423}
 424
 425static void __init poodle_init(void)
 426{
 427        int ret = 0;
 428
 429        pm_power_off = poodle_poweroff;
 430
 431        PCFR |= PCFR_OPDE;
 432
 433        pxa2xx_mfp_config(ARRAY_AND_SIZE(poodle_pin_config));
 434
 435        pxa_set_ffuart_info(NULL);
 436        pxa_set_btuart_info(NULL);
 437        pxa_set_stuart_info(NULL);
 438
 439        platform_scoop_config = &poodle_pcmcia_config;
 440
 441        ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 442        if (ret)
 443                pr_warn("poodle: Unable to register LoCoMo device\n");
 444
 445        pxa_set_fb_info(&poodle_locomo_device.dev, &poodle_fb_info);
 446        pxa_set_udc_info(&udc_info);
 447        gpiod_add_lookup_table(&poodle_mci_gpio_table);
 448        pxa_set_mci_info(&poodle_mci_platform_data);
 449        pxa_set_ficp_info(&poodle_ficp_platform_data);
 450        pxa_set_i2c_info(NULL);
 451        i2c_register_board_info(0, ARRAY_AND_SIZE(poodle_i2c_devices));
 452        poodle_init_spi();
 453        regulator_has_full_constraints();
 454}
 455
 456static void __init fixup_poodle(struct tag *tags, char **cmdline)
 457{
 458        sharpsl_save_param();
 459        memblock_add(0xa0000000, SZ_32M);
 460}
 461
 462MACHINE_START(POODLE, "SHARP Poodle")
 463        .fixup          = fixup_poodle,
 464        .map_io         = pxa25x_map_io,
 465        .nr_irqs        = POODLE_NR_IRQS,       /* 4 for LoCoMo */
 466        .init_irq       = pxa25x_init_irq,
 467        .handle_irq     = pxa25x_handle_irq,
 468        .init_time      = pxa_timer_init,
 469        .init_machine   = poodle_init,
 470        .restart        = pxa_restart,
 471MACHINE_END
 472