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 #include <asm/setup.h>
  32
  33 #include <mach/pxa300.h>
  34 #include <mach/pxafb.h>
  35 #include <mach/mmc.h>
  36 #include <mach/ohci.h>
  37 #include <plat/i2c.h>
  38 #include <mach/pxa3xx_nand.h>
  39
  40 #include <asm/mach/map.h>
  41
  42 #include "generic.h"
  43
  44 #define CM_X300_ETH_PHYS        0x08000010
  45
  46 #define GPIO82_MMC2_IRQ         (82)
  47 #define GPIO85_MMC2_WP          (85)
  48
  49 #define CM_X300_MMC2_IRQ        IRQ_GPIO(GPIO82_MMC2_IRQ)
  50
  51 #define GPIO95_RTC_CS           (95)
  52 #define GPIO96_RTC_WR           (96)
  53 #define GPIO97_RTC_RD           (97)
  54 #define GPIO98_RTC_IO           (98)
  55
  56 static mfp_cfg_t cm_x300_mfp_cfg[] __initdata = {
  57         /* LCD */
  58         GPIO54_LCD_LDD_0,
  59         GPIO55_LCD_LDD_1,
  60         GPIO56_LCD_LDD_2,
  61         GPIO57_LCD_LDD_3,
  62         GPIO58_LCD_LDD_4,
  63         GPIO59_LCD_LDD_5,
  64         GPIO60_LCD_LDD_6,
  65         GPIO61_LCD_LDD_7,
  66         GPIO62_LCD_LDD_8,
  67         GPIO63_LCD_LDD_9,
  68         GPIO64_LCD_LDD_10,
  69         GPIO65_LCD_LDD_11,
  70         GPIO66_LCD_LDD_12,
  71         GPIO67_LCD_LDD_13,
  72         GPIO68_LCD_LDD_14,
  73         GPIO69_LCD_LDD_15,
  74         GPIO72_LCD_FCLK,
  75         GPIO73_LCD_LCLK,
  76         GPIO74_LCD_PCLK,
  77         GPIO75_LCD_BIAS,
  78
  79         /* BTUART */
  80         GPIO111_UART2_RTS,
  81         GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL,
  82         GPIO113_UART2_TXD,
  83         GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH,
  84
  85         /* STUART */
  86         GPIO109_UART3_TXD,
  87         GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL,
  88
  89         /* AC97 */
  90         GPIO23_AC97_nACRESET,
  91         GPIO24_AC97_SYSCLK,
  92         GPIO29_AC97_BITCLK,
  93         GPIO25_AC97_SDATA_IN_0,
  94         GPIO27_AC97_SDATA_OUT,
  95         GPIO28_AC97_SYNC,
  96
  97         /* Keypad */
  98         GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
  99         GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
 100         GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
 101         GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
 102         GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
 103         GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
 104         GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
 105         GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH,
 106         GPIO121_KP_MKOUT_0,
 107         GPIO122_KP_MKOUT_1,
 108         GPIO123_KP_MKOUT_2,
 109         GPIO124_KP_MKOUT_3,
 110         GPIO125_KP_MKOUT_4,
 111         GPIO4_2_KP_MKOUT_5,
 112
 113         /* MMC1 */
 114         GPIO3_MMC1_DAT0,
 115         GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
 116         GPIO5_MMC1_DAT2,
 117         GPIO6_MMC1_DAT3,
 118         GPIO7_MMC1_CLK,
 119         GPIO8_MMC1_CMD, /* CMD0 for slot 0 */
 120
 121         /* MMC2 */
 122         GPIO9_MMC2_DAT0,
 123         GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
 124         GPIO11_MMC2_DAT2,
 125         GPIO12_MMC2_DAT3,
 126         GPIO13_MMC2_CLK,
 127         GPIO14_MMC2_CMD,
 128
 129         /* FFUART */
 130         GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL,
 131         GPIO31_UART1_TXD,
 132         GPIO32_UART1_CTS,
 133         GPIO37_UART1_RTS,
 134         GPIO33_UART1_DCD,
 135         GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL,
 136         GPIO35_UART1_RI,
 137         GPIO36_UART1_DTR,
 138
 139         /* GPIOs */
 140         GPIO79_GPIO,                    /* LED */
 141         GPIO82_GPIO | MFP_PULL_HIGH,    /* MMC CD */
 142         GPIO85_GPIO,                    /* MMC WP */
 143         GPIO99_GPIO,                    /* Ethernet IRQ */
 144
 145         /* RTC GPIOs */
 146         GPIO95_GPIO,                    /* RTC CS */
 147         GPIO96_GPIO,                    /* RTC WR */
 148         GPIO97_GPIO,                    /* RTC RD */
 149         GPIO98_GPIO,                    /* RTC IO */
 150
 151         /* Standard I2C */
 152         GPIO21_I2C_SCL,
 153         GPIO22_I2C_SDA,
 154 };
 155
 156 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
 157 static struct resource dm9000_resources[] = {
 158         [0] = {
 159                 .start  = CM_X300_ETH_PHYS,
 160                 .end    = CM_X300_ETH_PHYS + 0x3,
 161                 .flags  = IORESOURCE_MEM,
 162         },
 163         [1] = {
 164                 .start  = CM_X300_ETH_PHYS + 0x4,
 165                 .end    = CM_X300_ETH_PHYS + 0x4 + 500,
 166                 .flags  = IORESOURCE_MEM,
 167         },
 168         [2] = {
 169                 .start  = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
 170                 .end    = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
 171                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 172         }
 173 };
 174
 175 static struct dm9000_plat_data cm_x300_dm9000_platdata = {
 176         .flags          = DM9000_PLATF_16BITONLY | DM9000_PLATF_NO_EEPROM,
 177 };
 178
 179 static struct platform_device dm9000_device = {
 180         .name           = "dm9000",
 181         .id             = 0,
 182         .num_resources  = ARRAY_SIZE(dm9000_resources),
 183         .resource       = dm9000_resources,
 184         .dev            = {
 185                 .platform_data = &cm_x300_dm9000_platdata,
 186         }
 187
 188 };
 189
 190 static void __init cm_x300_init_dm9000(void)
 191 {
 192         platform_device_register(&dm9000_device);
 193 }
 194 #else
 195 static inline void cm_x300_init_dm9000(void) {}
 196 #endif
 197
 198 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 199 static struct pxafb_mode_info cm_x300_lcd_modes[] = {
 200         [0] = {
 201                 .pixclock       = 38000,
 202                 .bpp            = 16,
 203                 .xres           = 480,
 204                 .yres           = 640,
 205                 .hsync_len      = 8,
 206                 .vsync_len      = 2,
 207                 .left_margin    = 8,
 208                 .upper_margin   = 0,
 209                 .right_margin   = 24,
 210                 .lower_margin   = 4,
 211                 .cmap_greyscale = 0,
 212         },
 213         [1] = {
 214                 .pixclock       = 153800,
 215                 .bpp            = 16,
 216                 .xres           = 240,
 217                 .yres           = 320,
 218                 .hsync_len      = 8,
 219                 .vsync_len      = 2,
 220                 .left_margin    = 8,
 221                 .upper_margin   = 2,
 222                 .right_margin   = 88,
 223                 .lower_margin   = 2,
 224                 .cmap_greyscale = 0,
 225         },
 226 };
 227
 228 static struct pxafb_mach_info cm_x300_lcd = {
 229         .modes                  = cm_x300_lcd_modes,
 230         .num_modes              = 2,
 231         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 232 };
 233
 234 static void __init cm_x300_init_lcd(void)
 235 {
 236         set_pxa_fb_info(&cm_x300_lcd);
 237 }
 238 #else
 239 static inline void cm_x300_init_lcd(void) {}
 240 #endif
 241
 242 #if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
 243 static struct mtd_partition cm_x300_nand_partitions[] = {
 244         [0] = {
 245                 .name        = "OBM",
 246                 .offset      = 0,
 247                 .size        = SZ_256K,
 248                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
 249         },
 250         [1] = {
 251                 .name        = "U-Boot",
 252                 .offset      = MTDPART_OFS_APPEND,
 253                 .size        = SZ_256K,
 254                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
 255         },
 256         [2] = {
 257                 .name        = "Environment",
 258                 .offset      = MTDPART_OFS_APPEND,
 259                 .size        = SZ_256K,
 260         },
 261         [3] = {
 262                 .name        = "reserved",
 263                 .offset      = MTDPART_OFS_APPEND,
 264                 .size        = SZ_256K + SZ_1M,
 265                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
 266         },
 267         [4] = {
 268                 .name        = "kernel",
 269                 .offset      = MTDPART_OFS_APPEND,
 270                 .size        = SZ_4M,
 271         },
 272         [5] = {
 273                 .name        = "fs",
 274                 .offset      = MTDPART_OFS_APPEND,
 275                 .size        = MTDPART_SIZ_FULL,
 276         },
 277 };
 278
 279 static struct pxa3xx_nand_platform_data cm_x300_nand_info = {
 280         .enable_arbiter = 1,
 281         .keep_config    = 1,
 282         .parts          = cm_x300_nand_partitions,
 283         .nr_parts       = ARRAY_SIZE(cm_x300_nand_partitions),
 284 };
 285
 286 static void __init cm_x300_init_nand(void)
 287 {
 288         pxa3xx_set_nand_info(&cm_x300_nand_info);
 289 }
 290 #else
 291 static inline void cm_x300_init_nand(void) {}
 292 #endif
 293
 294 #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
 295 /* The first MMC slot of CM-X300 is hardwired to Libertas card and has
 296    no detection/ro pins */
 297 static int cm_x300_mci_init(struct device *dev,
 298                             irq_handler_t cm_x300_detect_int,
 299                             void *data)
 300 {
 301         return 0;
 302 }
 303
 304 static void cm_x300_mci_exit(struct device *dev, void *data)
 305 {
 306 }
 307
 308 static struct pxamci_platform_data cm_x300_mci_platform_data = {
 309         .detect_delay   = 20,
 310         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 311         .init           = cm_x300_mci_init,
 312         .exit           = cm_x300_mci_exit,
 313 };
 314
 315 static int cm_x300_mci2_ro(struct device *dev)
 316 {
 317         return gpio_get_value(GPIO85_MMC2_WP);
 318 }
 319
 320 static int cm_x300_mci2_init(struct device *dev,
 321                              irq_handler_t cm_x300_detect_int,
 322                              void *data)
 323 {
 324         int err;
 325
 326         /*
 327          * setup GPIO for CM-X300 MMC controller
 328          */
 329         err = gpio_request(GPIO82_MMC2_IRQ, "mmc card detect");
 330         if (err)
 331                 goto err_request_cd;
 332         gpio_direction_input(GPIO82_MMC2_IRQ);
 333
 334         err = gpio_request(GPIO85_MMC2_WP, "mmc write protect");
 335         if (err)
 336                 goto err_request_wp;
 337         gpio_direction_input(GPIO85_MMC2_WP);
 338
 339         err = request_irq(CM_X300_MMC2_IRQ, cm_x300_detect_int,
 340                           IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 341                           "MMC card detect", data);
 342         if (err) {
 343                 printk(KERN_ERR "%s: MMC/SD/SDIO: "
 344                                 "can't request card detect IRQ\n", __func__);
 345                 goto err_request_irq;
 346         }
 347
 348         return 0;
 349
 350 err_request_irq:
 351         gpio_free(GPIO85_MMC2_WP);
 352 err_request_wp:
 353         gpio_free(GPIO82_MMC2_IRQ);
 354 err_request_cd:
 355         return err;
 356 }
 357
 358 static void cm_x300_mci2_exit(struct device *dev, void *data)
 359 {
 360         free_irq(CM_X300_MMC2_IRQ, data);
 361         gpio_free(GPIO82_MMC2_IRQ);
 362         gpio_free(GPIO85_MMC2_WP);
 363 }
 364
 365 static struct pxamci_platform_data cm_x300_mci2_platform_data = {
 366         .detect_delay   = 20,
 367         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 368         .init           = cm_x300_mci2_init,
 369         .exit           = cm_x300_mci2_exit,
 370         .get_ro         = cm_x300_mci2_ro,
 371 };
 372
 373 static void __init cm_x300_init_mmc(void)
 374 {
 375         pxa_set_mci_info(&cm_x300_mci_platform_data);
 376         pxa3xx_set_mci2_info(&cm_x300_mci2_platform_data);
 377 }
 378 #else
 379 static inline void cm_x300_init_mmc(void) {}
 380 #endif
 381
 382 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
 383 static struct pxaohci_platform_data cm_x300_ohci_platform_data = {
 384         .port_mode      = PMM_PERPORT_MODE,
 385         .flags          = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
 386 };
 387
 388 static void __init cm_x300_init_ohci(void)
 389 {
 390         pxa_set_ohci_info(&cm_x300_ohci_platform_data);
 391 }
 392 #else
 393 static inline void cm_x300_init_ohci(void) {}
 394 #endif
 395
 396 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 397 static struct gpio_led cm_x300_leds[] = {
 398         [0] = {
 399                 .name = "cm-x300:green",
 400                 .default_trigger = "heartbeat",
 401                 .gpio = 79,
 402                 .active_low = 1,
 403         },
 404 };
 405
 406 static struct gpio_led_platform_data cm_x300_gpio_led_pdata = {
 407         .num_leds = ARRAY_SIZE(cm_x300_leds),
 408         .leds = cm_x300_leds,
 409 };
 410
 411 static struct platform_device cm_x300_led_device = {
 412         .name           = "leds-gpio",
 413         .id             = -1,
 414         .dev            = {
 415                 .platform_data = &cm_x300_gpio_led_pdata,
 416         },
 417 };
 418
 419 static void __init cm_x300_init_leds(void)
 420 {
 421         platform_device_register(&cm_x300_led_device);
 422 }
 423 #else
 424 static inline void cm_x300_init_leds(void) {}
 425 #endif
 426
 427 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
 428 /* PCA9555 */
 429 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_0 = {
 430         .gpio_base = 128,
 431 };
 432
 433 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_1 = {
 434         .gpio_base = 144,
 435 };
 436
 437 static struct i2c_board_info cm_x300_gpio_ext_info[] = {
 438         [0] = {
 439                 I2C_BOARD_INFO("pca9555", 0x24),
 440                 .platform_data = &cm_x300_gpio_ext_pdata_0,
 441         },
 442         [1] = {
 443                 I2C_BOARD_INFO("pca9555", 0x25),
 444                 .platform_data = &cm_x300_gpio_ext_pdata_1,
 445         },
 446 };
 447
 448 static void __init cm_x300_init_i2c(void)
 449 {
 450         pxa_set_i2c_info(NULL);
 451         i2c_register_board_info(0, cm_x300_gpio_ext_info,
 452                                 ARRAY_SIZE(cm_x300_gpio_ext_info));
 453 }
 454 #else
 455 static inline void cm_x300_init_i2c(void) {}
 456 #endif
 457
 458 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
 459 struct v3020_platform_data cm_x300_v3020_pdata = {
 460         .use_gpio       = 1,
 461         .gpio_cs        = GPIO95_RTC_CS,
 462         .gpio_wr        = GPIO96_RTC_WR,
 463         .gpio_rd        = GPIO97_RTC_RD,
 464         .gpio_io        = GPIO98_RTC_IO,
 465 };
 466
 467 static struct platform_device cm_x300_rtc_device = {
 468         .name           = "v3020",
 469         .id             = -1,
 470         .dev            = {
 471                 .platform_data = &cm_x300_v3020_pdata,
 472         }
 473 };
 474
 475 static void __init cm_x300_init_rtc(void)
 476 {
 477         platform_device_register(&cm_x300_rtc_device);
 478 }
 479 #else
 480 static inline void cm_x300_init_rtc(void) {}
 481 #endif
 482
 483 static void __init cm_x300_init(void)
 484 {
 485         /* board-processor specific GPIO initialization */
 486         pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x300_mfp_cfg));
 487
 488         cm_x300_init_dm9000();
 489         cm_x300_init_lcd();
 490         cm_x300_init_ohci();
 491         cm_x300_init_mmc();
 492         cm_x300_init_nand();
 493         cm_x300_init_leds();
 494         cm_x300_init_i2c();
 495         cm_x300_init_rtc();
 496 }
 497
 498 static void __init cm_x300_fixup(struct machine_desc *mdesc, struct tag *tags,
 499                                  char **cmdline, struct meminfo *mi)
 500 {
 501         mi->nr_banks = 2;
 502         mi->bank[0].start = 0xa0000000;
 503         mi->bank[0].node = 0;
 504         mi->bank[0].size = (64*1024*1024);
 505         mi->bank[1].start = 0xc0000000;
 506         mi->bank[1].node = 0;
 507         mi->bank[1].size = (64*1024*1024);
 508 }
 509
 510 MACHINE_START(CM_X300, "CM-X300 module")
 511         .phys_io        = 0x40000000,
 512         .boot_params    = 0xa0000100,
 513         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 514         .map_io         = pxa_map_io,
 515         .init_irq       = pxa3xx_init_irq,
 516         .timer          = &pxa_timer,
 517         .init_machine   = cm_x300_init,
 518         .fixup          = cm_x300_fixup,
 519 MACHINE_END