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