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_MMC_IRQ          (82)
  47 #define GPIO85_MMC_WP           (85)
  48
  49 #define CM_X300_MMC_IRQ         IRQ_GPIO(GPIO82_MMC_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 static struct pxamci_platform_data cm_x300_mci_platform_data = {
 296         .detect_delay           = 20,
 297         .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 298         .gpio_card_detect       = GPIO82_MMC_IRQ,
 299         .gpio_card_ro           = GPIO85_MMC_WP,
 300         .gpio_power             = -1,
 301 };
 302
 303 /* The second MMC slot of CM-X300 is hardwired to Libertas card and has
 304    no detection/ro pins */
 305 static int cm_x300_mci2_init(struct device *dev,
 306                              irq_handler_t cm_x300_detect_int,
 307         void *data)
 308 {
 309         return 0;
 310 }
 311
 312 static void cm_x300_mci2_exit(struct device *dev, void *data)
 313 {
 314 }
 315
 316 static struct pxamci_platform_data cm_x300_mci2_platform_data = {
 317         .detect_delay           = 20,
 318         .ocr_mask               = MMC_VDD_32_33|MMC_VDD_33_34,
 319         .init                   = cm_x300_mci2_init,
 320         .exit                   = cm_x300_mci2_exit,
 321         .gpio_card_detect       = -1,
 322         .gpio_card_ro           = -1,
 323         .gpio_power             = -1,
 324 };
 325
 326 static void __init cm_x300_init_mmc(void)
 327 {
 328         pxa_set_mci_info(&cm_x300_mci_platform_data);
 329         pxa3xx_set_mci2_info(&cm_x300_mci2_platform_data);
 330 }
 331 #else
 332 static inline void cm_x300_init_mmc(void) {}
 333 #endif
 334
 335 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
 336 static struct pxaohci_platform_data cm_x300_ohci_platform_data = {
 337         .port_mode      = PMM_PERPORT_MODE,
 338         .flags          = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
 339 };
 340
 341 static void __init cm_x300_init_ohci(void)
 342 {
 343         pxa_set_ohci_info(&cm_x300_ohci_platform_data);
 344 }
 345 #else
 346 static inline void cm_x300_init_ohci(void) {}
 347 #endif
 348
 349 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 350 static struct gpio_led cm_x300_leds[] = {
 351         [0] = {
 352                 .name = "cm-x300:green",
 353                 .default_trigger = "heartbeat",
 354                 .gpio = 79,
 355                 .active_low = 1,
 356         },
 357 };
 358
 359 static struct gpio_led_platform_data cm_x300_gpio_led_pdata = {
 360         .num_leds = ARRAY_SIZE(cm_x300_leds),
 361         .leds = cm_x300_leds,
 362 };
 363
 364 static struct platform_device cm_x300_led_device = {
 365         .name           = "leds-gpio",
 366         .id             = -1,
 367         .dev            = {
 368                 .platform_data = &cm_x300_gpio_led_pdata,
 369         },
 370 };
 371
 372 static void __init cm_x300_init_leds(void)
 373 {
 374         platform_device_register(&cm_x300_led_device);
 375 }
 376 #else
 377 static inline void cm_x300_init_leds(void) {}
 378 #endif
 379
 380 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
 381 /* PCA9555 */
 382 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_0 = {
 383         .gpio_base = 128,
 384 };
 385
 386 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_1 = {
 387         .gpio_base = 144,
 388 };
 389
 390 static struct i2c_board_info cm_x300_gpio_ext_info[] = {
 391         [0] = {
 392                 I2C_BOARD_INFO("pca9555", 0x24),
 393                 .platform_data = &cm_x300_gpio_ext_pdata_0,
 394         },
 395         [1] = {
 396                 I2C_BOARD_INFO("pca9555", 0x25),
 397                 .platform_data = &cm_x300_gpio_ext_pdata_1,
 398         },
 399 };
 400
 401 static void __init cm_x300_init_i2c(void)
 402 {
 403         pxa_set_i2c_info(NULL);
 404         i2c_register_board_info(0, cm_x300_gpio_ext_info,
 405                                 ARRAY_SIZE(cm_x300_gpio_ext_info));
 406 }
 407 #else
 408 static inline void cm_x300_init_i2c(void) {}
 409 #endif
 410
 411 #if defined(CONFIG_RTC_DRV_V3020) || defined(CONFIG_RTC_DRV_V3020_MODULE)
 412 struct v3020_platform_data cm_x300_v3020_pdata = {
 413         .use_gpio       = 1,
 414         .gpio_cs        = GPIO95_RTC_CS,
 415         .gpio_wr        = GPIO96_RTC_WR,
 416         .gpio_rd        = GPIO97_RTC_RD,
 417         .gpio_io        = GPIO98_RTC_IO,
 418 };
 419
 420 static struct platform_device cm_x300_rtc_device = {
 421         .name           = "v3020",
 422         .id             = -1,
 423         .dev            = {
 424                 .platform_data = &cm_x300_v3020_pdata,
 425         }
 426 };
 427
 428 static void __init cm_x300_init_rtc(void)
 429 {
 430         platform_device_register(&cm_x300_rtc_device);
 431 }
 432 #else
 433 static inline void cm_x300_init_rtc(void) {}
 434 #endif
 435
 436 static void __init cm_x300_init(void)
 437 {
 438         /* board-processor specific GPIO initialization */
 439         pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x300_mfp_cfg));
 440
 441         cm_x300_init_dm9000();
 442         cm_x300_init_lcd();
 443         cm_x300_init_ohci();
 444         cm_x300_init_mmc();
 445         cm_x300_init_nand();
 446         cm_x300_init_leds();
 447         cm_x300_init_i2c();
 448         cm_x300_init_rtc();
 449 }
 450
 451 static void __init cm_x300_fixup(struct machine_desc *mdesc, struct tag *tags,
 452                                  char **cmdline, struct meminfo *mi)
 453 {
 454         mi->nr_banks = 2;
 455         mi->bank[0].start = 0xa0000000;
 456         mi->bank[0].node = 0;
 457         mi->bank[0].size = (64*1024*1024);
 458         mi->bank[1].start = 0xc0000000;
 459         mi->bank[1].node = 0;
 460         mi->bank[1].size = (64*1024*1024);
 461 }
 462
 463 MACHINE_START(CM_X300, "CM-X300 module")
 464         .phys_io        = 0x40000000,
 465         .boot_params    = 0xa0000100,
 466         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 467         .map_io         = pxa_map_io,
 468         .init_irq       = pxa3xx_init_irq,
 469         .timer          = &pxa_timer,
 470         .init_machine   = cm_x300_init,
 471         .fixup          = cm_x300_fixup,
 472 MACHINE_END