kernel/2.6.29.6-aldebaran-rt/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         /* Standard I2C */
 141         GPIO21_I2C_SCL,
 142         GPIO22_I2C_SDA,
 143 };
 144
 145 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
 146 static struct resource dm9000_resources[] = {
 147         [0] = {
 148                 .start  = CM_X300_ETH_PHYS,
 149                 .end    = CM_X300_ETH_PHYS + 0x3,
 150                 .flags  = IORESOURCE_MEM,
 151         },
 152         [1] = {
 153                 .start  = CM_X300_ETH_PHYS + 0x4,
 154                 .end    = CM_X300_ETH_PHYS + 0x4 + 500,
 155                 .flags  = IORESOURCE_MEM,
 156         },
 157         [2] = {
 158                 .start  = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
 159                 .end    = IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
 160                 .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 161         }
 162 };
 163
 164 static struct dm9000_plat_data cm_x300_dm9000_platdata = {
 165         .flags          = DM9000_PLATF_16BITONLY,
 166 };
 167
 168 static struct platform_device dm9000_device = {
 169         .name           = "dm9000",
 170         .id             = 0,
 171         .num_resources  = ARRAY_SIZE(dm9000_resources),
 172         .resource       = dm9000_resources,
 173         .dev            = {
 174                 .platform_data = &cm_x300_dm9000_platdata,
 175         }
 176
 177 };
 178
 179 static void __init cm_x300_init_dm9000(void)
 180 {
 181         platform_device_register(&dm9000_device);
 182 }
 183 #else
 184 static inline void cm_x300_init_dm9000(void) {}
 185 #endif
 186
 187 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
 188 static struct pxafb_mode_info cm_x300_lcd_modes[] = {
 189         [0] = {
 190                 .pixclock       = 38000,
 191                 .bpp            = 16,
 192                 .xres           = 480,
 193                 .yres           = 640,
 194                 .hsync_len      = 8,
 195                 .vsync_len      = 2,
 196                 .left_margin    = 8,
 197                 .upper_margin   = 0,
 198                 .right_margin   = 24,
 199                 .lower_margin   = 4,
 200                 .cmap_greyscale = 0,
 201         },
 202         [1] = {
 203                 .pixclock       = 153800,
 204                 .bpp            = 16,
 205                 .xres           = 240,
 206                 .yres           = 320,
 207                 .hsync_len      = 8,
 208                 .vsync_len      = 2,
 209                 .left_margin    = 8,
 210                 .upper_margin   = 2,
 211                 .right_margin   = 88,
 212                 .lower_margin   = 2,
 213                 .cmap_greyscale = 0,
 214         },
 215 };
 216
 217 static struct pxafb_mach_info cm_x300_lcd = {
 218         .modes                  = cm_x300_lcd_modes,
 219         .num_modes              = 2,
 220         .lcd_conn               = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
 221 };
 222
 223 static void __init cm_x300_init_lcd(void)
 224 {
 225         set_pxa_fb_info(&cm_x300_lcd);
 226 }
 227 #else
 228 static inline void cm_x300_init_lcd(void) {}
 229 #endif
 230
 231 #if defined(CONFIG_MTD_NAND_PXA3xx) || defined(CONFIG_MTD_NAND_PXA3xx_MODULE)
 232 static struct mtd_partition cm_x300_nand_partitions[] = {
 233         [0] = {
 234                 .name        = "OBM",
 235                 .offset      = 0,
 236                 .size        = SZ_256K,
 237                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
 238         },
 239         [1] = {
 240                 .name        = "U-Boot",
 241                 .offset      = MTDPART_OFS_APPEND,
 242                 .size        = SZ_256K,
 243                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
 244         },
 245         [2] = {
 246                 .name        = "Environment",
 247                 .offset      = MTDPART_OFS_APPEND,
 248                 .size        = SZ_256K,
 249         },
 250         [3] = {
 251                 .name        = "reserved",
 252                 .offset      = MTDPART_OFS_APPEND,
 253                 .size        = SZ_256K + SZ_1M,
 254                 .mask_flags  = MTD_WRITEABLE, /* force read-only */
 255         },
 256         [4] = {
 257                 .name        = "kernel",
 258                 .offset      = MTDPART_OFS_APPEND,
 259                 .size        = SZ_4M,
 260         },
 261         [5] = {
 262                 .name        = "fs",
 263                 .offset      = MTDPART_OFS_APPEND,
 264                 .size        = MTDPART_SIZ_FULL,
 265         },
 266 };
 267
 268 static struct pxa3xx_nand_platform_data cm_x300_nand_info = {
 269         .enable_arbiter = 1,
 270         .parts          = cm_x300_nand_partitions,
 271         .nr_parts       = ARRAY_SIZE(cm_x300_nand_partitions),
 272 };
 273
 274 static void __init cm_x300_init_nand(void)
 275 {
 276         pxa3xx_set_nand_info(&cm_x300_nand_info);
 277 }
 278 #else
 279 static inline void cm_x300_init_nand(void) {}
 280 #endif
 281
 282 #if defined(CONFIG_MMC) || defined(CONFIG_MMC_MODULE)
 283 /* The first MMC slot of CM-X300 is hardwired to Libertas card and has
 284    no detection/ro pins */
 285 static int cm_x300_mci_init(struct device *dev,
 286                             irq_handler_t cm_x300_detect_int,
 287                             void *data)
 288 {
 289         return 0;
 290 }
 291
 292 static void cm_x300_mci_exit(struct device *dev, void *data)
 293 {
 294 }
 295
 296 static struct pxamci_platform_data cm_x300_mci_platform_data = {
 297         .detect_delay   = 20,
 298         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 299         .init           = cm_x300_mci_init,
 300         .exit           = cm_x300_mci_exit,
 301 };
 302
 303 static int cm_x300_mci2_ro(struct device *dev)
 304 {
 305         return gpio_get_value(GPIO85_MMC2_WP);
 306 }
 307
 308 static int cm_x300_mci2_init(struct device *dev,
 309                              irq_handler_t cm_x300_detect_int,
 310                              void *data)
 311 {
 312         int err;
 313
 314         /*
 315          * setup GPIO for CM-X300 MMC controller
 316          */
 317         err = gpio_request(GPIO82_MMC2_IRQ, "mmc card detect");
 318         if (err)
 319                 goto err_request_cd;
 320         gpio_direction_input(GPIO82_MMC2_IRQ);
 321
 322         err = gpio_request(GPIO85_MMC2_WP, "mmc write protect");
 323         if (err)
 324                 goto err_request_wp;
 325         gpio_direction_input(GPIO85_MMC2_WP);
 326
 327         err = request_irq(CM_X300_MMC2_IRQ, cm_x300_detect_int,
 328                           IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 329                           "MMC card detect", data);
 330         if (err) {
 331                 printk(KERN_ERR "%s: MMC/SD/SDIO: "
 332                                 "can't request card detect IRQ\n", __func__);
 333                 goto err_request_irq;
 334         }
 335
 336         return 0;
 337
 338 err_request_irq:
 339         gpio_free(GPIO85_MMC2_WP);
 340 err_request_wp:
 341         gpio_free(GPIO82_MMC2_IRQ);
 342 err_request_cd:
 343         return err;
 344 }
 345
 346 static void cm_x300_mci2_exit(struct device *dev, void *data)
 347 {
 348         free_irq(CM_X300_MMC2_IRQ, data);
 349         gpio_free(GPIO82_MMC2_IRQ);
 350         gpio_free(GPIO85_MMC2_WP);
 351 }
 352
 353 static struct pxamci_platform_data cm_x300_mci2_platform_data = {
 354         .detect_delay   = 20,
 355         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 356         .init           = cm_x300_mci2_init,
 357         .exit           = cm_x300_mci2_exit,
 358         .get_ro         = cm_x300_mci2_ro,
 359 };
 360
 361 static void __init cm_x300_init_mmc(void)
 362 {
 363         pxa_set_mci_info(&cm_x300_mci_platform_data);
 364         pxa3xx_set_mci2_info(&cm_x300_mci2_platform_data);
 365 }
 366 #else
 367 static inline void cm_x300_init_mmc(void) {}
 368 #endif
 369
 370 #if defined(CONFIG_USB_OHCI_HCD) || defined(CONFIG_USB_OHCI_HCD_MODULE)
 371 static struct pxaohci_platform_data cm_x300_ohci_platform_data = {
 372         .port_mode      = PMM_PERPORT_MODE,
 373         .flags          = ENABLE_PORT1 | ENABLE_PORT2 | POWER_CONTROL_LOW,
 374 };
 375
 376 static void __init cm_x300_init_ohci(void)
 377 {
 378         pxa_set_ohci_info(&cm_x300_ohci_platform_data);
 379 }
 380 #else
 381 static inline void cm_x300_init_ohci(void) {}
 382 #endif
 383
 384 #if defined(CONFIG_LEDS_GPIO) || defined(CONFIG_LEDS_GPIO_MODULE)
 385 static struct gpio_led cm_x300_leds[] = {
 386         [0] = {
 387                 .name = "cm-x300:green",
 388                 .default_trigger = "heartbeat",
 389                 .gpio = 79,
 390                 .active_low = 1,
 391         },
 392 };
 393
 394 static struct gpio_led_platform_data cm_x300_gpio_led_pdata = {
 395         .num_leds = ARRAY_SIZE(cm_x300_leds),
 396         .leds = cm_x300_leds,
 397 };
 398
 399 static struct platform_device cm_x300_led_device = {
 400         .name           = "leds-gpio",
 401         .id             = -1,
 402         .dev            = {
 403                 .platform_data = &cm_x300_gpio_led_pdata,
 404         },
 405 };
 406
 407 static void __init cm_x300_init_leds(void)
 408 {
 409         platform_device_register(&cm_x300_led_device);
 410 }
 411 #else
 412 static inline void cm_x300_init_leds(void) {}
 413 #endif
 414
 415 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
 416 /* PCA9555 */
 417 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_0 = {
 418         .gpio_base = 128,
 419 };
 420
 421 static struct pca953x_platform_data cm_x300_gpio_ext_pdata_1 = {
 422         .gpio_base = 144,
 423 };
 424
 425 static struct i2c_board_info cm_x300_gpio_ext_info[] = {
 426         [0] = {
 427                 I2C_BOARD_INFO("pca9555", 0x24),
 428                 .platform_data = &cm_x300_gpio_ext_pdata_0,
 429         },
 430         [1] = {
 431                 I2C_BOARD_INFO("pca9555", 0x25),
 432                 .platform_data = &cm_x300_gpio_ext_pdata_1,
 433         },
 434 };
 435
 436 static void __init cm_x300_init_i2c(void)
 437 {
 438         pxa_set_i2c_info(NULL);
 439         i2c_register_board_info(0, cm_x300_gpio_ext_info,
 440                                 ARRAY_SIZE(cm_x300_gpio_ext_info));
 441 }
 442 #else
 443 static inline void cm_x300_init_i2c(void) {}
 444 #endif
 445
 446 static void __init cm_x300_init(void)
 447 {
 448         /* board-processor specific GPIO initialization */
 449         pxa3xx_mfp_config(ARRAY_AND_SIZE(cm_x300_mfp_cfg));
 450
 451         cm_x300_init_dm9000();
 452         cm_x300_init_lcd();
 453         cm_x300_init_ohci();
 454         cm_x300_init_mmc();
 455         cm_x300_init_nand();
 456         cm_x300_init_leds();
 457         cm_x300_init_i2c();
 458 }
 459
 460 MACHINE_START(CM_X300, "CM-X300 module")
 461         .phys_io        = 0x40000000,
 462         .boot_params    = 0xa0000100,
 463         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 464         .map_io         = pxa_map_io,
 465         .init_irq       = pxa3xx_init_irq,
 466         .timer          = &pxa_timer,
 467         .init_machine   = cm_x300_init,
 468 MACHINE_END