git.oblomov.eu Git - linux-2.6/blob - 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
  25 #include <linux/i2c.h>
  26 #include <linux/i2c/pca953x.h>
  27
  28 #include <asm/mach-types.h>
  29 #include <asm/mach/arch.h>
  30
  31 #include <mach/mfp-pxa300.h>
  32
  33 #include <mach/hardware.h>
  34 #include <mach/pxafb.h>
  35 #include <mach/mmc.h>
  36 #include <mach/ohci.h>
  37 #include <mach/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 static mfp_cfg_t cm_x300_mfp_cfg[] __initdata = {
  52         /* LCD */
  53         GPIO54_LCD_LDD_0,
  54         GPIO55_LCD_LDD_1,
  55         GPIO56_LCD_LDD_2,
  56         GPIO57_LCD_LDD_3,
  57         GPIO58_LCD_LDD_4,
  58         GPIO59_LCD_LDD_5,
  59         GPIO60_LCD_LDD_6,
  60         GPIO61_LCD_LDD_7,
  61         GPIO62_LCD_LDD_8,
  62         GPIO63_LCD_LDD_9,
  63         GPIO64_LCD_LDD_10,
  64         GPIO65_LCD_LDD_11,
  65         GPIO66_LCD_LDD_12,
  66         GPIO67_LCD_LDD_13,
  67         GPIO68_LCD_LDD_14,
  68         GPIO69_LCD_LDD_15,
  69         GPIO72_LCD_FCLK,
  70         GPIO73_LCD_LCLK,
  71         GPIO74_LCD_PCLK,
  72         GPIO75_LCD_BIAS,
  73
  74         /* BTUART */
  75         GPIO111_UART2_RTS,
  76         GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL,
  77         GPIO113_UART2_TXD,
  78         GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH,
  79
  80         /* STUART */
  81         GPIO109_UART3_TXD,
  82         GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL,
  83
  84         /* AC97 */
  85         GPIO23_AC97_nACRESET,
  86         GPIO24_AC97_SYSCLK,
  87         GPIO29_AC97_BITCLK,
  88         GPIO25_AC97_SDATA_IN_0,
  89         GPIO27_AC97_SDATA_OUT,
  90         GPIO28_AC97_SYNC,
  91
  92         /* Keypad */
  93         GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
  94         GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
  95         GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
  96         GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
  97         GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
  98         GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
  99         GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
 100         GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH,
 101         GPIO121_KP_MKOUT_0,
 102         GPIO122_KP_MKOUT_1,
 103         GPIO123_KP_MKOUT_2,
 104         GPIO124_KP_MKOUT_3,
 105         GPIO125_KP_MKOUT_4,
 106         GPIO4_2_KP_MKOUT_5,
 107
 108         /* MMC1 */
 109         GPIO3_MMC1_DAT0,
 110         GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
 111         GPIO5_MMC1_DAT2,
 112         GPIO6_MMC1_DAT3,
 113         GPIO7_MMC1_CLK,
 114         GPIO8_MMC1_CMD, /* CMD0 for slot 0 */
 115
 116         /* MMC2 */
 117         GPIO9_MMC2_DAT0,
 118         GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
 119         GPIO11_MMC2_DAT2,
 120         GPIO12_MMC2_DAT3,
 121         GPIO13_MMC2_CLK,
 122         GPIO14_MMC2_CMD,
 123
 124         /* FFUART */
 125         GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL,
 126         GPIO31_UART1_TXD,
 127         GPIO32_UART1_CTS,
 128         GPIO37_UART1_RTS,
 129         GPIO33_UART1_DCD,
 130         GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL,
 131         GPIO35_UART1_RI,
 132         GPIO36_UART1_DTR,
 133
 134         /* GPIOs */
 135         GPIO79_GPIO,                    /* LED */
 136         GPIO82_GPIO | MFP_PULL_HIGH,    /* MMC CD */
 137         GPIO85_GPIO,                    /* MMC WP */
 138         GPIO99_GPIO,                    /* Ethernet IRQ */
 139 };
 140
 141 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
 142 static struct resource dm9000_resources[] = {
 143         [0] = {
 144                 .start  = CM_X300_ETH_PHYS,
 145                 .end    = CM_X300_ETH_PHYS + 0x3,
 146                 .flags  = IORESOURCE_MEM,
 147         },
 148         [1] = {
 149                 .start  = CM_X300_ETH_PHYS + 0x4,
 150                 .end    = CM_X300_ETH_PHYS + 0x4 + 500,
 151                 .flags  = IORESOURCE_MEM,
 152         },
 153         [2] = {
 154                 .start  = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
 155                 .end    = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
 156                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 157         }
 158 };
 159
 160 static struct dm9000_plat_data cm_x300_dm9000_platdata = {
 161         .flags          = DM9000_PLATF_16BITONLY,
 162 };
 163
 164 static struct platform_device dm9000_device = {
 165         .name           = "dm9000",
 166         .id             = 0,
 167         .num_resources  = ARRAY_SIZE(dm9000_resources),
 168         .resource       = dm9000_resources,
 169         .dev            = {
 170                 .platform_data = &cm_x300_dm9000_platdata,
 171         }
 172
 173 };
 174
 175 static void __init cm_x300_init_dm9000(void)
 176 {
 177         platform_device_register(&dm9000_device);
 178 }
 179 #else
 180 static inline void cm_x300_init_dm9000(void) {}
 181 #endif
 182
 183 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 184 static struct pxafb_mode_info cm_x300_lcd_modes[] = {
 185         [0] = {
 186                 .pixclock       = 38000,
 187                 .bpp            = 16,
 188                 .xres           = 480,
 189                 .yres           = 640,
 190                 .hsync_len      = 8,
 191                 .vsync_len      = 2,
 192                 .left_margin    = 8,
 193                 .upper_margin   = 0,
 194                 .right_margin   = 24,
 195                 .lower_margin   = 4,
 196                 .cmap_greyscale = 0,
 197         },
 198         [1] = {
 199                 .pixclock       = 153800,
 200                 .bpp            = 16,
 201                 .xres           = 240,
 202                 .yres           = 320,
 203                 .hsync_len      = 8,
 204                 .vsync_len      = 2,
 205                 .left_margin    = 8,
 206                 .upper_margin   = 2,
 207                 .right_margin   = 88,
 208                 .lower_margin   = 2,
 209                 .cmap_greyscale = 0,
 210         },
 211 };
 212
 213 static struct pxafb_mach_info cm_x300_lcd = {
 214         .modes                  = cm_x300_lcd_modes,
 215         .num_modes              = 2,
 216         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 217 };
 218
 219 static void __init cm_x300_init_lcd(void)
 220 {
 221         set_pxa_fb_info(&cm_x300_lcd);
 222 }
 223 #else
 224 static inline void cm_x300_init_lcd(void) {}
 225 #endif
 226
 227 #if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
 228 static struct mtd_partition cm_x300_nand_partitions[] = {
 229         [0] = {
 230                 .name        = "OBM",
 231                 .offset      = 0,
 232                 .size        = SZ_256K,
 233                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
 234         },
 235         [1] = {
 236                 .name        = "U-Boot",
 237                 .offset      = MTDPART_OFS_APPEND,
 238                 .size        = SZ_256K,
 239                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
 240         },
 241         [2] = {
 242                 .name        = "Environment",
 243                 .offset      = MTDPART_OFS_APPEND,
 244                 .size        = SZ_256K,
 245         },
 246         [3] = {
 247                 .name        = "reserved",
 248                 .offset      = MTDPART_OFS_APPEND,
 249                 .size        = SZ_256K + SZ_1M,
 250                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
 251         },
 252         [4] = {
 253                 .name        = "kernel",
 254                 .offset      = MTDPART_OFS_APPEND,
 255                 .size        = SZ_4M,
 256         },
 257         [5] = {
 258                 .name        = "fs",
 259                 .offset      = MTDPART_OFS_APPEND,
 260                 .size        = MTDPART_SIZ_FULL,
 261         },
 262 };
 263
 264 static struct pxa3xx_nand_platform_data cm_x300_nand_info = {
 265         .enable_arbiter = 1,
 266         .parts          = cm_x300_nand_partitions,
 267         .nr_parts       = ARRAY_SIZE(cm_x300_nand_partitions),
 268 };
 269
 270 static void __init cm_x300_init_nand(void)
 271 {
 272         pxa3xx_set_nand_info(&cm_x300_nand_info);
 273 }
 274 #else
 275 static inline void cm_x300_init_nand(void) {}
 276 #endif
 277
 278 #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
 279 /* The first MMC slot of CM-X300 is hardwired to Libertas card and has
 280    no detection/ro pins */
 281 static int cm_x300_mci_init(struct device *dev,
 282                             irq_handler_t cm_x300_detect_int,
 283                             void *data)
 284 {
 285         return 0;
 286 }
 287
 288 static void cm_x300_mci_exit(struct device *dev, void *data)
 289 {
 290 }
 291
 292 static struct pxamci_platform_data cm_x300_mci_platform_data = {
 293         .detect_delay   = 20,
 294         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 295         .init           = cm_x300_mci_init,
 296         .exit           = cm_x300_mci_exit,
 297 };
 298
 299 static int cm_x300_mci2_ro(struct device *dev)
 300 {
 301         return gpio_get_value(GPIO85_MMC2_WP);
 302 }
 303
 304 static int cm_x300_mci2_init(struct device *dev,
 305                              irq_handler_t cm_x300_detect_int,
 306                              void *data)
 307 {
 308         int err;
 309
 310         /*
 311          * setup GPIO for CM-X300 MMC controller
 312          */
 313         err = gpio_request(GPIO82_MMC2_IRQ, "mmc card detect");
 314         if (err)
 315                 goto err_request_cd;
 316         gpio_direction_input(GPIO82_MMC2_IRQ);
 317
 318         err = gpio_request(GPIO85_MMC2_WP, "mmc write protect");
 319         if (err)
 320                 goto err_request_wp;
 321         gpio_direction_input(GPIO85_MMC2_WP);
 322
 323         err = request_irq(CM_X300_MMC2_IRQ, cm_x300_detect_int,
 324                           IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 325                           "MMC card detect", data);
 326         if (err) {
 327                 printk(KERN_ERR "%s: MMC/SD/SDIO: "
 328                                 "can't request card detect IRQ\n", __func__);
 329                 goto err_request_irq;
 330         }
 331
 332         return 0;
 333
 334 err_request_irq:
 335         gpio_free(GPIO85_MMC2_WP);
 336 err_request_wp:
 337         gpio_free(GPIO82_MMC2_IRQ);
 338 err_request_cd:
 339         return err;
 340 }
 341
 342 static void cm_x300_mci2_exit(struct device *dev, void *data)
 343 {
 344         free_irq(CM_X300_MMC2_IRQ, data);
 345         gpio_free(GPIO82_MMC2_IRQ);
 346         gpio_free(GPIO85_MMC2_WP);
 347 }
 348
 349 static struct pxamci_platform_data cm_x300_mci2_platform_data = {
 350         .detect_delay   = 20,
 351         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 352         .init           = cm_x300_mci2_init,
 353         .exit           = cm_x300_mci2_exit,
 354         .get_ro         = cm_x300_mci2_ro,
 355 };
 356
 357 static void __init cm_x300_init_mmc(void)
 358 {
 359         pxa_set_mci_info(&cm_x300_mci_platform_data);
 360         pxa3xx_set_mci2_info(&cm_x300_mci2_platform_data);
 361 }
 362 #else
 363 static inline void cm_x300_init_mmc(void) {}
 364 #endif
 365
 366 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
 367 static struct pxaohci_platform_data cm_x300_ohci_platform_data = {
 368         .port_mode      = PMM_PERPORT_MODE,
 369         .flags          = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
 370 };
 371
 372 static void __init cm_x300_init_ohci(void)
 373 {
 374         pxa_set_ohci_info(&cm_x300_ohci_platform_data);
 375 }
 376 #else
 377 static inline void cm_x300_init_ohci(void) {}
 378 #endif
 379
 380 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 381 static struct gpio_led cm_x300_leds[] = {
 382         [0] = {
 383                 .name = "cm-x300:green",
 384                 .default_trigger = "heartbeat",
 385                 .gpio = 79,
 386                 .active_low = 1,
 387         },
 388 };
 389
 390 static struct gpio_led_platform_data cm_x300_gpio_led_pdata = {
 391         .num_leds = ARRAY_SIZE(cm_x300_leds),
 392         .leds = cm_x300_leds,
 393 };
 394
 395 static struct platform_device cm_x300_led_device = {
 396         .name           = "leds-gpio",
 397         .id             = -1,
 398         .dev            = {
 399                 .platform_data = &cm_x300_gpio_led_pdata,
 400         },
 401 };
 402
 403 static void __init cm_x300_init_leds(void)
 404 {
 405         platform_device_register(&cm_x300_led_device);
 406 }
 407 #else
 408 static inline void cm_x300_init_leds(void) {}
 409 #endif
 410
 411 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
 412 /* PCA9555 */
 413 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_0 = {
 414         .gpio_base = 128,
 415 };
 416
 417 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_1 = {
 418         .gpio_base = 144,
 419 };
 420
 421 static struct i2c_board_info cm_x300_gpio_ext_info[] = {
 422         [0] = {
 423                 I2C_BOARD_INFO("pca9555", 0x24),
 424                 .platform_data = &cm_x300_gpio_ext_pdata_0,
 425         },
 426         [1] = {
 427                 I2C_BOARD_INFO("pca9555", 0x25),
 428                 .platform_data = &cm_x300_gpio_ext_pdata_1,
 429         },
 430 };
 431
 432 static void __init cm_x300_init_i2c(void)
 433 {
 434         pxa_set_i2c_info(NULL);
 435         i2c_register_board_info(0, cm_x300_gpio_ext_info,
 436                                 ARRAY_SIZE(cm_x300_gpio_ext_info));
 437 }
 438 #else
 439 static inline void cm_x300_init_i2c(void) {}
 440 #endif
 441
 442 static void __init cm_x300_init(void)
 443 {
 444         /* board-processor specific GPIO initialization */
 445         pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x300_mfp_cfg));
 446
 447         cm_x300_init_dm9000();
 448         cm_x300_init_lcd();
 449         cm_x300_init_ohci();
 450         cm_x300_init_mmc();
 451         cm_x300_init_nand();
 452         cm_x300_init_leds();
 453         cm_x300_init_i2c();
 454 }
 455
 456 MACHINE_START(CM_X300, "CM-X300 module")
 457         .phys_io        = 0x40000000,
 458         .boot_params    = 0xa0000100,
 459         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 460         .map_io         = pxa_map_io,
 461         .init_irq       = pxa3xx_init_irq,
 462         .timer          = &pxa_timer,
 463         .init_machine   = cm_x300_init,
 464 MACHINE_END