arch/arm/mach-pxa/cm-x300.c

   1 /*
   2  * linux/arch/arm/mach-pxa/cm-x300.c
   3  *
   4  * Support for the CompuLab CM-X300 modules
   5  *
   6  * Copyright (C) 2008 CompuLab Ltd.
   7  *
   8  * Mike Rapoport <mike@compulab.co.il>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 #include <linux/module.h>
  16 #include <linux/kernel.h>
  17 #include <linux/interrupt.h>
  18 #include <linux/init.h>
  19 #include <linux/platform_device.h>
  20
  21 #include <linux/gpio.h>
  22 #include <linux/dm9000.h>
  23 #include <linux/leds.h>
  24 #include <linux/rtc-v3020.h>
  25
  26 #include <linux/i2c.h>
  27 #include <linux/i2c/pca953x.h>
  28
  29 #include <asm/mach-types.h>
  30 #include <asm/mach/arch.h>
  31
  32 #include <mach/pxa300.h>
  33 #include <mach/pxafb.h>
  34 #include <mach/mmc.h>
  35 #include <mach/ohci.h>
  36 #include <plat/i2c.h>
  37 #include <mach/pxa3xx_nand.h>
  38
  39 #include <asm/mach/map.h>
  40
  41 #include "generic.h"
  42
  43 #define CM_X300_ETH_PHYS        0x08000010
  44
  45 #define GPIO82_MMC2_IRQ         (82)
  46 #define GPIO85_MMC2_WP          (85)
  47
  48 #define CM_X300_MMC2_IRQ        IRQ_GPIO(GPIO82_MMC2_IRQ)
  49
  50 #define GPIO95_RTC_CS           (95)
  51 #define GPIO96_RTC_WR           (96)
  52 #define GPIO97_RTC_RD           (97)
  53 #define GPIO98_RTC_IO           (98)
  54
  55 static mfp_cfg_t cm_x300_mfp_cfg[] __initdata = {
  56         /* LCD */
  57         GPIO54_LCD_LDD_0,
  58         GPIO55_LCD_LDD_1,
  59         GPIO56_LCD_LDD_2,
  60         GPIO57_LCD_LDD_3,
  61         GPIO58_LCD_LDD_4,
  62         GPIO59_LCD_LDD_5,
  63         GPIO60_LCD_LDD_6,
  64         GPIO61_LCD_LDD_7,
  65         GPIO62_LCD_LDD_8,
  66         GPIO63_LCD_LDD_9,
  67         GPIO64_LCD_LDD_10,
  68         GPIO65_LCD_LDD_11,
  69         GPIO66_LCD_LDD_12,
  70         GPIO67_LCD_LDD_13,
  71         GPIO68_LCD_LDD_14,
  72         GPIO69_LCD_LDD_15,
  73         GPIO72_LCD_FCLK,
  74         GPIO73_LCD_LCLK,
  75         GPIO74_LCD_PCLK,
  76         GPIO75_LCD_BIAS,
  77
  78         /* BTUART */
  79         GPIO111_UART2_RTS,
  80         GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL,
  81         GPIO113_UART2_TXD,
  82         GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH,
  83
  84         /* STUART */
  85         GPIO109_UART3_TXD,
  86         GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL,
  87
  88         /* AC97 */
  89         GPIO23_AC97_nACRESET,
  90         GPIO24_AC97_SYSCLK,
  91         GPIO29_AC97_BITCLK,
  92         GPIO25_AC97_SDATA_IN_0,
  93         GPIO27_AC97_SDATA_OUT,
  94         GPIO28_AC97_SYNC,
  95
  96         /* Keypad */
  97         GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
  98         GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
  99         GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
 100         GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
 101         GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
 102         GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
 103         GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
 104         GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH,
 105         GPIO121_KP_MKOUT_0,
 106         GPIO122_KP_MKOUT_1,
 107         GPIO123_KP_MKOUT_2,
 108         GPIO124_KP_MKOUT_3,
 109         GPIO125_KP_MKOUT_4,
 110         GPIO4_2_KP_MKOUT_5,
 111
 112         /* MMC1 */
 113         GPIO3_MMC1_DAT0,
 114         GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
 115         GPIO5_MMC1_DAT2,
 116         GPIO6_MMC1_DAT3,
 117         GPIO7_MMC1_CLK,
 118         GPIO8_MMC1_CMD, /* CMD0 for slot 0 */
 119
 120         /* MMC2 */
 121         GPIO9_MMC2_DAT0,
 122         GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
 123         GPIO11_MMC2_DAT2,
 124         GPIO12_MMC2_DAT3,
 125         GPIO13_MMC2_CLK,
 126         GPIO14_MMC2_CMD,
 127
 128         /* FFUART */
 129         GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL,
 130         GPIO31_UART1_TXD,
 131         GPIO32_UART1_CTS,
 132         GPIO37_UART1_RTS,
 133         GPIO33_UART1_DCD,
 134         GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL,
 135         GPIO35_UART1_RI,
 136         GPIO36_UART1_DTR,
 137
 138         /* GPIOs */
 139         GPIO79_GPIO,                    /* LED */
 140         GPIO82_GPIO | MFP_PULL_HIGH,    /* MMC CD */
 141         GPIO85_GPIO,                    /* MMC WP */
 142         GPIO99_GPIO,                    /* Ethernet IRQ */
 143
 144         /* RTC GPIOs */
 145         GPIO95_GPIO,                    /* RTC CS */
 146         GPIO96_GPIO,                    /* RTC WR */
 147         GPIO97_GPIO,                    /* RTC RD */
 148         GPIO98_GPIO,                    /* RTC IO */
 149
 150         /* Standard I2C */
 151         GPIO21_I2C_SCL,
 152         GPIO22_I2C_SDA,
 153 };
 154
 155 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
 156 static struct resource dm9000_resources[] = {
 157         [0] = {
 158                 .start  = CM_X300_ETH_PHYS,
 159                 .end    = CM_X300_ETH_PHYS + 0x3,
 160                 .flags  = IORESOURCE_MEM,
 161         },
 162         [1] = {
 163                 .start  = CM_X300_ETH_PHYS + 0x4,
 164                 .end    = CM_X300_ETH_PHYS + 0x4 + 500,
 165                 .flags  = IORESOURCE_MEM,
 166         },
 167         [2] = {
 168                 .start  = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
 169                 .end    = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
 170                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 171         }
 172 };
 173
 174 static struct dm9000_plat_data cm_x300_dm9000_platdata = {
 175         .flags          = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
 176 };
 177
 178 static struct platform_device dm9000_device = {
 179         .name           = "dm9000",
 180         .id             = 0,
 181         .num_resources  = ARRAY_SIZE(dm9000_resources),
 182         .resource       = dm9000_resources,
 183         .dev            = {
 184                 .platform_data = &cm_x300_dm9000_platdata,
 185         }
 186
 187 };
 188
 189 static void __init cm_x300_init_dm9000(void)
 190 {
 191         platform_device_register(&dm9000_device);
 192 }
 193 #else
 194 static inline void cm_x300_init_dm9000(void) {}
 195 #endif
 196
 197 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 198 static struct pxafb_mode_info cm_x300_lcd_modes[] = {
 199         [0] = {
 200                 .pixclock       = 38000,
 201                 .bpp            = 16,
 202                 .xres           = 480,
 203                 .yres           = 640,
 204                 .hsync_len      = 8,
 205                 .vsync_len      = 2,
 206                 .left_margin    = 8,
 207                 .upper_margin   = 0,
 208                 .right_margin   = 24,
 209                 .lower_margin   = 4,
 210                 .cmap_greyscale = 0,
 211         },
 212         [1] = {
 213                 .pixclock       = 153800,
 214                 .bpp            = 16,
 215                 .xres           = 240,
 216                 .yres           = 320,
 217                 .hsync_len      = 8,
 218                 .vsync_len      = 2,
 219                 .left_margin    = 8,
 220                 .upper_margin   = 2,
 221                 .right_margin   = 88,
 222                 .lower_margin   = 2,
 223                 .cmap_greyscale = 0,
 224         },
 225 };
 226
 227 static struct pxafb_mach_info cm_x300_lcd = {
 228         .modes                  = cm_x300_lcd_modes,
 229         .num_modes              = 2,
 230         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 231 };
 232
 233 static void __init cm_x300_init_lcd(void)
 234 {
 235         set_pxa_fb_info(&cm_x300_lcd);
 236 }
 237 #else
 238 static inline void cm_x300_init_lcd(void) {}
 239 #endif
 240
 241 #if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
 242 static struct mtd_partition cm_x300_nand_partitions[] = {
 243         [0] = {
 244                 .name        = "OBM",
 245                 .offset      = 0,
 246                 .size        = SZ_256K,
 247                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
 248         },
 249         [1] = {
 250                 .name        = "U-Boot",
 251                 .offset      = MTDPART_OFS_APPEND,
 252                 .size        = SZ_256K,
 253                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
 254         },
 255         [2] = {
 256                 .name        = "Environment",
 257                 .offset      = MTDPART_OFS_APPEND,
 258                 .size        = SZ_256K,
 259         },
 260         [3] = {
 261                 .name        = "reserved",
 262                 .offset      = MTDPART_OFS_APPEND,
 263                 .size        = SZ_256K + SZ_1M,
 264                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
 265         },
 266         [4] = {
 267                 .name        = "kernel",
 268                 .offset      = MTDPART_OFS_APPEND,
 269                 .size        = SZ_4M,
 270         },
 271         [5] = {
 272                 .name        = "fs",
 273                 .offset      = MTDPART_OFS_APPEND,
 274                 .size        = MTDPART_SIZ_FULL,
 275         },
 276 };
 277
 278 static struct pxa3xx_nand_platform_data cm_x300_nand_info = {
 279         .enable_arbiter = 1,
 280         .keep_config    = 1,
 281         .parts          = cm_x300_nand_partitions,
 282         .nr_parts       = ARRAY_SIZE(cm_x300_nand_partitions),
 283 };
 284
 285 static void __init cm_x300_init_nand(void)
 286 {
 287         pxa3xx_set_nand_info(&cm_x300_nand_info);
 288 }
 289 #else
 290 static inline void cm_x300_init_nand(void) {}
 291 #endif
 292
 293 #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
 294 /* The first MMC slot of CM-X300 is hardwired to Libertas card and has
 295    no detection/ro pins */
 296 static int cm_x300_mci_init(struct device *dev,
 297                             irq_handler_t cm_x300_detect_int,
 298                             void *data)
 299 {
 300         return 0;
 301 }
 302
 303 static void cm_x300_mci_exit(struct device *dev, void *data)
 304 {
 305 }
 306
 307 static struct pxamci_platform_data cm_x300_mci_platform_data = {
 308         .detect_delay   = 20,
 309         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 310         .init           = cm_x300_mci_init,
 311         .exit           = cm_x300_mci_exit,
 312 };
 313
 314 static int cm_x300_mci2_ro(struct device *dev)
 315 {
 316         return gpio_get_value(GPIO85_MMC2_WP);
 317 }
 318
 319 static int cm_x300_mci2_init(struct device *dev,
 320                              irq_handler_t cm_x300_detect_int,
 321                              void *data)
 322 {
 323         int err;
 324
 325         /*
 326          * setup GPIO for CM-X300 MMC controller
 327          */
 328         err = gpio_request(GPIO82_MMC2_IRQ, "mmc card detect");
 329         if (err)
 330                 goto err_request_cd;
 331         gpio_direction_input(GPIO82_MMC2_IRQ);
 332
 333         err = gpio_request(GPIO85_MMC2_WP, "mmc write protect");
 334         if (err)
 335                 goto err_request_wp;
 336         gpio_direction_input(GPIO85_MMC2_WP);
 337
 338         err = request_irq(CM_X300_MMC2_IRQ, cm_x300_detect_int,
 339                           IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 340                           "MMC card detect", data);
 341         if (err) {
 342                 printk(KERN_ERR "%s: MMC/SD/SDIO: "
 343                                 "can't request card detect IRQ\n", __func__);
 344                 goto err_request_irq;
 345         }
 346
 347         return 0;
 348
 349 err_request_irq:
 350         gpio_free(GPIO85_MMC2_WP);
 351 err_request_wp:
 352         gpio_free(GPIO82_MMC2_IRQ);
 353 err_request_cd:
 354         return err;
 355 }
 356
 357 static void cm_x300_mci2_exit(struct device *dev, void *data)
 358 {
 359         free_irq(CM_X300_MMC2_IRQ, data);
 360         gpio_free(GPIO82_MMC2_IRQ);
 361         gpio_free(GPIO85_MMC2_WP);
 362 }
 363
 364 static struct pxamci_platform_data cm_x300_mci2_platform_data = {
 365         .detect_delay   = 20,
 366         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 367         .init           = cm_x300_mci2_init,
 368         .exit           = cm_x300_mci2_exit,
 369         .get_ro         = cm_x300_mci2_ro,
 370 };
 371
 372 static void __init cm_x300_init_mmc(void)
 373 {
 374         pxa_set_mci_info(&cm_x300_mci_platform_data);
 375         pxa3xx_set_mci2_info(&cm_x300_mci2_platform_data);
 376 }
 377 #else
 378 static inline void cm_x300_init_mmc(void) {}
 379 #endif
 380
 381 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
 382 static struct pxaohci_platform_data cm_x300_ohci_platform_data = {
 383         .port_mode      = PMM_PERPORT_MODE,
 384         .flags          = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
 385 };
 386
 387 static void __init cm_x300_init_ohci(void)
 388 {
 389         pxa_set_ohci_info(&cm_x300_ohci_platform_data);
 390 }
 391 #else
 392 static inline void cm_x300_init_ohci(void) {}
 393 #endif
 394
 395 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 396 static struct gpio_led cm_x300_leds[] = {
 397         [0] = {
 398                 .name = "cm-x300:green",
 399                 .default_trigger = "heartbeat",
 400                 .gpio = 79,
 401                 .active_low = 1,
 402         },
 403 };
 404
 405 static struct gpio_led_platform_data cm_x300_gpio_led_pdata = {
 406         .num_leds = ARRAY_SIZE(cm_x300_leds),
 407         .leds = cm_x300_leds,
 408 };
 409
 410 static struct platform_device cm_x300_led_device = {
 411         .name           = "leds-gpio",
 412         .id             = -1,
 413         .dev            = {
 414                 .platform_data = &cm_x300_gpio_led_pdata,
 415         },
 416 };
 417
 418 static void __init cm_x300_init_leds(void)
 419 {
 420         platform_device_register(&cm_x300_led_device);
 421 }
 422 #else
 423 static inline void cm_x300_init_leds(void) {}
 424 #endif
 425
 426 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
 427 /* PCA9555 */
 428 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_0 = {
 429         .gpio_base = 128,
 430 };
 431
 432 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_1 = {
 433         .gpio_base = 144,
 434 };
 435
 436 static struct i2c_board_info cm_x300_gpio_ext_info[] = {
 437         [0] = {
 438                 I2C_BOARD_INFO("pca9555", 0x24),
 439                 .platform_data = &cm_x300_gpio_ext_pdata_0,
 440         },
 441         [1] = {
 442                 I2C_BOARD_INFO("pca9555", 0x25),
 443                 .platform_data = &cm_x300_gpio_ext_pdata_1,
 444         },
 445 };
 446
 447 static void __init cm_x300_init_i2c(void)
 448 {
 449         pxa_set_i2c_info(NULL);
 450         i2c_register_board_info(0, cm_x300_gpio_ext_info,
 451                                 ARRAY_SIZE(cm_x300_gpio_ext_info));
 452 }
 453 #else
 454 static inline void cm_x300_init_i2c(void) {}
 455 #endif
 456
 457 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
 458 struct v3020_platform_data cm_x300_v3020_pdata = {
 459         .use_gpio       = 1,
 460         .gpio_cs        = GPIO95_RTC_CS,
 461         .gpio_wr        = GPIO96_RTC_WR,
 462         .gpio_rd        = GPIO97_RTC_RD,
 463         .gpio_io        = GPIO98_RTC_IO,
 464 };
 465
 466 static struct platform_device cm_x300_rtc_device = {
 467         .name           = "v3020",
 468         .id             = -1,
 469         .dev            = {
 470                 .platform_data = &cm_x300_v3020_pdata,
 471         }
 472 };
 473
 474 static void __init cm_x300_init_rtc(void)
 475 {
 476         platform_device_register(&cm_x300_rtc_device);
 477 }
 478 #else
 479 static inline void cm_x300_init_rtc(void) {}
 480 #endif
 481
 482 static void __init cm_x300_init(void)
 483 {
 484         /* board-processor specific GPIO initialization */
 485         pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x300_mfp_cfg));
 486
 487         cm_x300_init_dm9000();
 488         cm_x300_init_lcd();
 489         cm_x300_init_ohci();
 490         cm_x300_init_mmc();
 491         cm_x300_init_nand();
 492         cm_x300_init_leds();
 493         cm_x300_init_i2c();
 494         cm_x300_init_rtc();
 495 }
 496
 497 MACHINE_START(CM_X300, "CM-X300 module")
 498         .phys_io        = 0x40000000,
 499         .boot_params    = 0xa0000100,
 500         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 501         .map_io         = pxa_map_io,
 502         .init_irq       = pxa3xx_init_irq,
 503         .timer          = &pxa_timer,
 504         .init_machine   = cm_x300_init,
 505 MACHINE_END