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/gpio.h>
  35 #include <mach/pxafb.h>
  36 #include <mach/mmc.h>
  37 #include <mach/ohci.h>
  38 #include <mach/i2c.h>
  39 #include <mach/pxa3xx_nand.h>
  40
  41 #include <asm/mach/map.h>
  42
  43 #include "generic.h"
  44
  45 #define CM_X300_ETH_PHYS        0x08000010
  46
  47 #define GPIO82_MMC2_IRQ         (82)
  48 #define GPIO85_MMC2_WP          (85)
  49
  50 #define CM_X300_MMC2_IRQ        IRQ_GPIO(GPIO82_MMC2_IRQ)
  51
  52 static mfp_cfg_t cm_x300_mfp_cfg[] __initdata = {
  53         /* LCD */
  54         GPIO54_LCD_LDD_0,
  55         GPIO55_LCD_LDD_1,
  56         GPIO56_LCD_LDD_2,
  57         GPIO57_LCD_LDD_3,
  58         GPIO58_LCD_LDD_4,
  59         GPIO59_LCD_LDD_5,
  60         GPIO60_LCD_LDD_6,
  61         GPIO61_LCD_LDD_7,
  62         GPIO62_LCD_LDD_8,
  63         GPIO63_LCD_LDD_9,
  64         GPIO64_LCD_LDD_10,
  65         GPIO65_LCD_LDD_11,
  66         GPIO66_LCD_LDD_12,
  67         GPIO67_LCD_LDD_13,
  68         GPIO68_LCD_LDD_14,
  69         GPIO69_LCD_LDD_15,
  70         GPIO72_LCD_FCLK,
  71         GPIO73_LCD_LCLK,
  72         GPIO74_LCD_PCLK,
  73         GPIO75_LCD_BIAS,
  74
  75         /* BTUART */
  76         GPIO111_UART2_RTS,
  77         GPIO112_UART2_RXD | MFP_LPM_EDGE_FALL,
  78         GPIO113_UART2_TXD,
  79         GPIO114_UART2_CTS | MFP_LPM_EDGE_BOTH,
  80
  81         /* STUART */
  82         GPIO109_UART3_TXD,
  83         GPIO110_UART3_RXD | MFP_LPM_EDGE_FALL,
  84
  85         /* AC97 */
  86         GPIO23_AC97_nACRESET,
  87         GPIO24_AC97_SYSCLK,
  88         GPIO29_AC97_BITCLK,
  89         GPIO25_AC97_SDATA_IN_0,
  90         GPIO27_AC97_SDATA_OUT,
  91         GPIO28_AC97_SYNC,
  92
  93         /* Keypad */
  94         GPIO115_KP_MKIN_0 | MFP_LPM_EDGE_BOTH,
  95         GPIO116_KP_MKIN_1 | MFP_LPM_EDGE_BOTH,
  96         GPIO117_KP_MKIN_2 | MFP_LPM_EDGE_BOTH,
  97         GPIO118_KP_MKIN_3 | MFP_LPM_EDGE_BOTH,
  98         GPIO119_KP_MKIN_4 | MFP_LPM_EDGE_BOTH,
  99         GPIO120_KP_MKIN_5 | MFP_LPM_EDGE_BOTH,
 100         GPIO2_2_KP_MKIN_6 | MFP_LPM_EDGE_BOTH,
 101         GPIO3_2_KP_MKIN_7 | MFP_LPM_EDGE_BOTH,
 102         GPIO121_KP_MKOUT_0,
 103         GPIO122_KP_MKOUT_1,
 104         GPIO123_KP_MKOUT_2,
 105         GPIO124_KP_MKOUT_3,
 106         GPIO125_KP_MKOUT_4,
 107         GPIO4_2_KP_MKOUT_5,
 108
 109         /* MMC1 */
 110         GPIO3_MMC1_DAT0,
 111         GPIO4_MMC1_DAT1 | MFP_LPM_EDGE_BOTH,
 112         GPIO5_MMC1_DAT2,
 113         GPIO6_MMC1_DAT3,
 114         GPIO7_MMC1_CLK,
 115         GPIO8_MMC1_CMD, /* CMD0 for slot 0 */
 116
 117         /* MMC2 */
 118         GPIO9_MMC2_DAT0,
 119         GPIO10_MMC2_DAT1 | MFP_LPM_EDGE_BOTH,
 120         GPIO11_MMC2_DAT2,
 121         GPIO12_MMC2_DAT3,
 122         GPIO13_MMC2_CLK,
 123         GPIO14_MMC2_CMD,
 124
 125         /* FFUART */
 126         GPIO30_UART1_RXD | MFP_LPM_EDGE_FALL,
 127         GPIO31_UART1_TXD,
 128         GPIO32_UART1_CTS,
 129         GPIO37_UART1_RTS,
 130         GPIO33_UART1_DCD,
 131         GPIO34_UART1_DSR | MFP_LPM_EDGE_FALL,
 132         GPIO35_UART1_RI,
 133         GPIO36_UART1_DTR,
 134
 135         /* GPIOs */
 136         GPIO79_GPIO,                    /* LED */
 137         GPIO82_GPIO | MFP_PULL_HIGH,    /* MMC CD */
 138         GPIO85_GPIO,                    /* MMC WP */
 139         GPIO99_GPIO,                    /* Ethernet IRQ */
 140 };
 141
 142 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
 143 static struct resource dm9000_resources[] = {
 144         [0] = {
 145                 .start  = CM_X300_ETH_PHYS,
 146                 .end    = CM_X300_ETH_PHYS + 0x3,
 147                 .flags  = IORESOURCE_MEM,
 148         },
 149         [1] = {
 150                 .start  = CM_X300_ETH_PHYS + 0x4,
 151                 .end    = CM_X300_ETH_PHYS + 0x4 + 500,
 152                 .flags  = IORESOURCE_MEM,
 153         },
 154         [2] = {
 155                 .start  = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
 156                 .end    = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
 157                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 158         }
 159 };
 160
 161 static struct dm9000_plat_data cm_x300_dm9000_platdata = {
 162         .flags          = DM9000_PLATF_16BITONLY,
 163 };
 164
 165 static struct platform_device dm9000_device = {
 166         .name           = "dm9000",
 167         .id             = 0,
 168         .num_resources  = ARRAY_SIZE(dm9000_resources),
 169         .resource       = dm9000_resources,
 170         .dev            = {
 171                 .platform_data = &cm_x300_dm9000_platdata,
 172         }
 173
 174 };
 175
 176 static void __init cm_x300_init_dm9000(void)
 177 {
 178         platform_device_register(&dm9000_device);
 179 }
 180 #else
 181 static inline void cm_x300_init_dm9000(void) {}
 182 #endif
 183
 184 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 185 static struct pxafb_mode_info cm_x300_lcd_modes[] = {
 186         [0] = {
 187                 .pixclock       = 38000,
 188                 .bpp            = 16,
 189                 .xres           = 480,
 190                 .yres           = 640,
 191                 .hsync_len      = 8,
 192                 .vsync_len      = 2,
 193                 .left_margin    = 8,
 194                 .upper_margin   = 0,
 195                 .right_margin   = 24,
 196                 .lower_margin   = 4,
 197                 .cmap_greyscale = 0,
 198         },
 199         [1] = {
 200                 .pixclock       = 153800,
 201                 .bpp            = 16,
 202                 .xres           = 240,
 203                 .yres           = 320,
 204                 .hsync_len      = 8,
 205                 .vsync_len      = 2,
 206                 .left_margin    = 8,
 207                 .upper_margin   = 2,
 208                 .right_margin   = 88,
 209                 .lower_margin   = 2,
 210                 .cmap_greyscale = 0,
 211         },
 212 };
 213
 214 static struct pxafb_mach_info cm_x300_lcd = {
 215         .modes                  = cm_x300_lcd_modes,
 216         .num_modes              = 2,
 217         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 218 };
 219
 220 static void __init cm_x300_init_lcd(void)
 221 {
 222         set_pxa_fb_info(&cm_x300_lcd);
 223 }
 224 #else
 225 static inline void cm_x300_init_lcd(void) {}
 226 #endif
 227
 228 #if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
 229 static struct mtd_partition cm_x300_nand_partitions[] = {
 230         [0] = {
 231                 .name        = "OBM",
 232                 .offset      = 0,
 233                 .size        = SZ_256K,
 234                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
 235         },
 236         [1] = {
 237                 .name        = "U-Boot",
 238                 .offset      = MTDPART_OFS_APPEND,
 239                 .size        = SZ_256K,
 240                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
 241         },
 242         [2] = {
 243                 .name        = "Environment",
 244                 .offset      = MTDPART_OFS_APPEND,
 245                 .size        = SZ_256K,
 246         },
 247         [3] = {
 248                 .name        = "reserved",
 249                 .offset      = MTDPART_OFS_APPEND,
 250                 .size        = SZ_256K + SZ_1M,
 251                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
 252         },
 253         [4] = {
 254                 .name        = "kernel",
 255                 .offset      = MTDPART_OFS_APPEND,
 256                 .size        = SZ_4M,
 257         },
 258         [5] = {
 259                 .name        = "fs",
 260                 .offset      = MTDPART_OFS_APPEND,
 261                 .size        = MTDPART_SIZ_FULL,
 262         },
 263 };
 264
 265 static struct pxa3xx_nand_platform_data cm_x300_nand_info = {
 266         .enable_arbiter = 1,
 267         .parts          = cm_x300_nand_partitions,
 268         .nr_parts       = ARRAY_SIZE(cm_x300_nand_partitions),
 269 };
 270
 271 static void __init cm_x300_init_nand(void)
 272 {
 273         pxa3xx_set_nand_info(&cm_x300_nand_info);
 274 }
 275 #else
 276 static inline void cm_x300_init_nand(void) {}
 277 #endif
 278
 279 #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
 280 /* The first MMC slot of CM-X300 is hardwired to Libertas card and has
 281    no detection/ro pins */
 282 static int cm_x300_mci_init(struct device *dev,
 283                             irq_handler_t cm_x300_detect_int,
 284                             void *data)
 285 {
 286         return 0;
 287 }
 288
 289 static void cm_x300_mci_exit(struct device *dev, void *data)
 290 {
 291 }
 292
 293 static struct pxamci_platform_data cm_x300_mci_platform_data = {
 294         .detect_delay   = 20,
 295         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 296         .init           = cm_x300_mci_init,
 297         .exit           = cm_x300_mci_exit,
 298 };
 299
 300 static int cm_x300_mci2_ro(struct device *dev)
 301 {
 302         return gpio_get_value(GPIO85_MMC2_WP);
 303 }
 304
 305 static int cm_x300_mci2_init(struct device *dev,
 306                              irq_handler_t cm_x300_detect_int,
 307                              void *data)
 308 {
 309         int err;
 310
 311         /*
 312          * setup GPIO for CM-X300 MMC controller
 313          */
 314         err = gpio_request(GPIO82_MMC2_IRQ, "mmc card detect");
 315         if (err)
 316                 goto err_request_cd;
 317         gpio_direction_input(GPIO82_MMC2_IRQ);
 318
 319         err = gpio_request(GPIO85_MMC2_WP, "mmc write protect");
 320         if (err)
 321                 goto err_request_wp;
 322         gpio_direction_input(GPIO85_MMC2_WP);
 323
 324         err = request_irq(CM_X300_MMC2_IRQ, cm_x300_detect_int,
 325                           IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 326                           "MMC card detect", data);
 327         if (err) {
 328                 printk(KERN_ERR "%s: MMC/SD/SDIO: "
 329                                 "can't request card detect IRQ\n", __func__);
 330                 goto err_request_irq;
 331         }
 332
 333         return 0;
 334
 335 err_request_irq:
 336         gpio_free(GPIO85_MMC2_WP);
 337 err_request_wp:
 338         gpio_free(GPIO82_MMC2_IRQ);
 339 err_request_cd:
 340         return err;
 341 }
 342
 343 static void cm_x300_mci2_exit(struct device *dev, void *data)
 344 {
 345         free_irq(CM_X300_MMC2_IRQ, data);
 346         gpio_free(GPIO82_MMC2_IRQ);
 347         gpio_free(GPIO85_MMC2_WP);
 348 }
 349
 350 static struct pxamci_platform_data cm_x300_mci2_platform_data = {
 351         .detect_delay   = 20,
 352         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 353         .init           = cm_x300_mci2_init,
 354         .exit           = cm_x300_mci2_exit,
 355         .get_ro         = cm_x300_mci2_ro,
 356 };
 357
 358 static void __init cm_x300_init_mmc(void)
 359 {
 360         pxa_set_mci_info(&cm_x300_mci_platform_data);
 361         pxa3xx_set_mci2_info(&cm_x300_mci2_platform_data);
 362 }
 363 #else
 364 static inline void cm_x300_init_mmc(void) {}
 365 #endif
 366
 367 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
 368 static int cm_x300_ohci_init(struct device *dev)
 369 {
 370         /* Set the Power Control Polarity Low */
 371         UHCHR = (UHCHR | UHCHR_PCPL) &
 372                 ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSE);
 373
 374         return 0;
 375 }
 376
 377 static struct pxaohci_platform_data cm_x300_ohci_platform_data = {
 378         .port_mode      = PMM_PERPORT_MODE,
 379         .init           = cm_x300_ohci_init,
 380 };
 381 static void __init cm_x300_init_ohci(void)
 382 {
 383         pxa_set_ohci_info(&cm_x300_ohci_platform_data);
 384 }
 385 #else
 386 static inline void cm_x300_init_ohci(void) {}
 387 #endif
 388
 389 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 390 static struct gpio_led cm_x300_leds[] = {
 391         [0] = {
 392                 .name = "cm-x300:green",
 393                 .default_trigger = "heartbeat",
 394                 .gpio = 79,
 395                 .active_low = 1,
 396         },
 397 };
 398
 399 static struct gpio_led_platform_data cm_x300_gpio_led_pdata = {
 400         .num_leds = ARRAY_SIZE(cm_x300_leds),
 401         .leds = cm_x300_leds,
 402 };
 403
 404 static struct platform_device cm_x300_led_device = {
 405         .name           = "leds-gpio",
 406         .id             = -1,
 407         .dev            = {
 408                 .platform_data = &cm_x300_gpio_led_pdata,
 409         },
 410 };
 411
 412 static void __init cm_x300_init_leds(void)
 413 {
 414         platform_device_register(&cm_x300_led_device);
 415 }
 416 #else
 417 static inline void cm_x300_init_leds(void) {}
 418 #endif
 419
 420 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
 421 /* PCA9555 */
 422 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_0 = {
 423         .gpio_base = 128,
 424 };
 425
 426 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_1 = {
 427         .gpio_base = 144,
 428 };
 429
 430 static struct i2c_board_info cm_x300_gpio_ext_info[] = {
 431         [0] = {
 432                 I2C_BOARD_INFO("pca9555", 0x24),
 433                 .platform_data = &cm_x300_gpio_ext_pdata_0,
 434         },
 435         [1] = {
 436                 I2C_BOARD_INFO("pca9555", 0x25),
 437                 .platform_data = &cm_x300_gpio_ext_pdata_1,
 438         },
 439 };
 440
 441 static void __init cm_x300_init_i2c(void)
 442 {
 443         pxa_set_i2c_info(NULL);
 444         i2c_register_board_info(0, cm_x300_gpio_ext_info,
 445                                 ARRAY_SIZE(cm_x300_gpio_ext_info));
 446 }
 447 #else
 448 static inline void cm_x300_init_i2c(void) {}
 449 #endif
 450
 451 static void __init cm_x300_init(void)
 452 {
 453         /* board-processor specific GPIO initialization */
 454         pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x300_mfp_cfg));
 455
 456         cm_x300_init_dm9000();
 457         cm_x300_init_lcd();
 458         cm_x300_init_ohci();
 459         cm_x300_init_mmc();
 460         cm_x300_init_nand();
 461         cm_x300_init_leds();
 462         cm_x300_init_i2c();
 463 }
 464
 465 MACHINE_START(CM_X300, "CM-X300 module")
 466         .phys_io        = 0x40000000,
 467         .boot_params    = 0xa0000100,
 468         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 469         .map_io         = pxa_map_io,
 470         .init_irq       = pxa3xx_init_irq,
 471         .timer          = &pxa_timer,
 472         .init_machine   = cm_x300_init,
 473 MACHINE_END