arch/arm/mach-omap2/board-omap3beagle.c

   1 /*
   2  * linux/arch/arm/mach-omap2/board-omap3beagle.c
   3  *
   4  * Copyright (C) 2008 Texas Instruments
   5  *
   6  * Modified from mach-omap2/board-3430sdp.c
   7  *
   8  * Initial code: Syed Mohammed Khasim
   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/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/delay.h>
  19 #include <linux/err.h>
  20 #include <linux/clk.h>
  21 #include <linux/io.h>
  22 #include <linux/leds.h>
  23 #include <linux/gpio.h>
  24 #include <linux/input.h>
  25 #include <linux/gpio_keys.h>
  26
  27 #include <linux/i2c/twl4030.h>
  28 #include <linux/omapfb.h>
  29
  30 #include <linux/mtd/mtd.h>
  31 #include <linux/mtd/partitions.h>
  32 #include <linux/mtd/nand.h>
  33
  34 #include <mach/hardware.h>
  35 #include <asm/mach-types.h>
  36 #include <asm/mach/arch.h>
  37 #include <asm/mach/map.h>
  38 #include <asm/mach/flash.h>
  39
  40 #include <mach/board.h>
  41 #include <mach/usb-musb.h>
  42 #include <mach/usb-ehci.h>
  43 #include <mach/hsmmc.h>
  44 #include <mach/common.h>
  45 #include <mach/gpmc.h>
  46 #include <mach/nand.h>
  47 #include <mach/mux.h>
  48 #include <mach/display.h>
  49
  50
  51 #define GPMC_CS0_BASE  0x60
  52 #define GPMC_CS_SIZE   0x30
  53
  54 #define NAND_BLOCK_SIZE         SZ_128K
  55
  56 static struct mtd_partition omap3beagle_nand_partitions[] = {
  57         /* All the partition sizes are listed in terms of NAND block size */
  58         {
  59                 .name           = "X-Loader",
  60                 .offset         = 0,
  61                 .size           = 4 * NAND_BLOCK_SIZE,
  62                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  63         },
  64         {
  65                 .name           = "U-Boot",
  66                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
  67                 .size           = 15 * NAND_BLOCK_SIZE,
  68                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  69         },
  70         {
  71                 .name           = "U-Boot Env",
  72                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
  73                 .size           = 1 * NAND_BLOCK_SIZE,
  74         },
  75         {
  76                 .name           = "Kernel",
  77                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
  78                 .size           = 32 * NAND_BLOCK_SIZE,
  79         },
  80         {
  81                 .name           = "File System",
  82                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
  83                 .size           = MTDPART_SIZ_FULL,
  84         },
  85 };
  86
  87 static struct omap_nand_platform_data omap3beagle_nand_data = {
  88         .options        = NAND_BUSWIDTH_16,
  89         .parts          = omap3beagle_nand_partitions,
  90         .nr_parts       = ARRAY_SIZE(omap3beagle_nand_partitions),
  91         .dma_channel    = -1,           /* disable DMA in OMAP NAND driver */
  92         .nand_setup     = NULL,
  93         .dev_ready      = NULL,
  94 };
  95
  96 static struct resource omap3beagle_nand_resource = {
  97         .flags          = IORESOURCE_MEM,
  98 };
  99
 100 static struct platform_device omap3beagle_nand_device = {
 101         .name           = "omap2-nand",
 102         .id             = -1,
 103         .dev            = {
 104                 .platform_data  = &omap3beagle_nand_data,
 105         },
 106         .num_resources  = 1,
 107         .resource       = &omap3beagle_nand_resource,
 108 };
 109
 110 #include "sdram-micron-mt46h32m32lf-6.h"
 111
 112 static struct omap_uart_config omap3_beagle_uart_config __initdata = {
 113         .enabled_uarts  = ((1 << 0) | (1 << 1) | (1 << 2)),
 114 };
 115
 116 static struct twl4030_usb_data beagle_usb_data = {
 117         .usb_mode       = T2_USB_MODE_ULPI,
 118 };
 119
 120 static struct gpio_led gpio_leds[];
 121
 122 static int beagle_twl_gpio_setup(struct device *dev,
 123                 unsigned gpio, unsigned ngpio)
 124 {
 125         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
 126
 127         /* REVISIT: need ehci-omap hooks for external VBUS
 128          * power switch and overcurrent detect
 129          */
 130
 131         gpio_request(gpio + 1, "EHCI_nOC");
 132         gpio_direction_input(gpio + 1);
 133
 134         /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
 135         gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
 136         gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);
 137
 138         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
 139         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 140
 141         return 0;
 142 }
 143
 144 static struct twl4030_gpio_platform_data beagle_gpio_data = {
 145         .gpio_base      = OMAP_MAX_GPIO_LINES,
 146         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 147         .irq_end        = TWL4030_GPIO_IRQ_END,
 148         .use_leds       = true,
 149         .pullups        = BIT(1),
 150         .pulldowns      = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
 151                                 | BIT(15) | BIT(16) | BIT(17),
 152         .setup          = beagle_twl_gpio_setup,
 153 };
 154
 155 static struct twl4030_platform_data beagle_twldata = {
 156         .irq_base       = TWL4030_IRQ_BASE,
 157         .irq_end        = TWL4030_IRQ_END,
 158
 159         /* platform_data for children goes here */
 160         .usb            = &beagle_usb_data,
 161         .gpio           = &beagle_gpio_data,
 162 };
 163
 164 static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
 165         {
 166                 I2C_BOARD_INFO("twl4030", 0x48),
 167                 .flags = I2C_CLIENT_WAKE,
 168                 .irq = INT_34XX_SYS_NIRQ,
 169                 .platform_data = &beagle_twldata,
 170         },
 171 };
 172
 173 static int __init omap3_beagle_i2c_init(void)
 174 {
 175         omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
 176                         ARRAY_SIZE(beagle_i2c_boardinfo));
 177 #ifdef CONFIG_I2C2_OMAP_BEAGLE
 178         omap_register_i2c_bus(2, 400, NULL, 0);
 179 #endif
 180         omap_register_i2c_bus(3, 400, NULL, 0);
 181         return 0;
 182 }
 183
 184 static void __init omap3_beagle_init_irq(void)
 185 {
 186         omap2_init_common_hw(mt46h32m32lf6_sdrc_params);
 187         omap_init_irq();
 188         omap_gpio_init();
 189 }
 190
 191 static struct platform_device omap3_beagle_lcd_device = {
 192         .name           = "omap3beagle_lcd",
 193         .id             = -1,
 194 };
 195
 196 static struct gpio_led gpio_leds[] = {
 197         {
 198                 .name                   = "beagleboard::usr0",
 199                 .default_trigger        = "heartbeat",
 200                 .gpio                   = 150,
 201         },
 202         {
 203                 .name                   = "beagleboard::usr1",
 204                 .default_trigger        = "mmc0",
 205                 .gpio                   = 149,
 206         },
 207         {
 208                 .name                   = "beagleboard::pmu_stat",
 209                 .gpio                   = -EINVAL,      /* gets replaced */
 210                 .active_low             = true,
 211         },
 212 };
 213
 214 static struct gpio_led_platform_data gpio_led_info = {
 215         .leds           = gpio_leds,
 216         .num_leds       = ARRAY_SIZE(gpio_leds),
 217 };
 218
 219 static struct platform_device leds_gpio = {
 220         .name   = "leds-gpio",
 221         .id     = -1,
 222         .dev    = {
 223                 .platform_data  = &gpio_led_info,
 224         },
 225 };
 226
 227 static struct gpio_keys_button gpio_buttons[] = {
 228         {
 229                 .code                   = BTN_EXTRA,
 230                 .gpio                   = 7,
 231                 .desc                   = "user",
 232                 .wakeup                 = 1,
 233         },
 234 };
 235
 236 static struct gpio_keys_platform_data gpio_key_info = {
 237         .buttons        = gpio_buttons,
 238         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 239 };
 240
 241 static struct platform_device keys_gpio = {
 242         .name   = "gpio-keys",
 243         .id     = -1,
 244         .dev    = {
 245                 .platform_data  = &gpio_key_info,
 246         },
 247 };
 248
 249 /* DSS */
 250
 251 static int beagle_enable_dvi(struct omap_display *display)
 252 {
 253         if (display->hw_config.panel_reset_gpio != -1)
 254                 gpio_set_value(display->hw_config.panel_reset_gpio, 1);
 255
 256         return 0;
 257 }
 258
 259 static void beagle_disable_dvi(struct omap_display *display)
 260 {
 261         if (display->hw_config.panel_reset_gpio != -1)
 262                 gpio_set_value(display->hw_config.panel_reset_gpio, 0);
 263 }
 264
 265 static struct omap_dss_display_config beagle_display_data_dvi = {
 266         .type = OMAP_DISPLAY_TYPE_DPI,
 267         .name = "dvi",
 268         .panel_name = "panel-generic",
 269         .u.dpi.data_lines = 24,
 270         .panel_reset_gpio = 170,
 271         .panel_enable = beagle_enable_dvi,
 272         .panel_disable = beagle_disable_dvi,
 273 };
 274
 275
 276 static int beagle_panel_enable_tv(struct omap_display *display)
 277 {
 278 #define ENABLE_VDAC_DEDICATED           0x03
 279 #define ENABLE_VDAC_DEV_GRP             0x20
 280
 281         twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
 282                         ENABLE_VDAC_DEDICATED,
 283                         TWL4030_VDAC_DEDICATED);
 284         twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER,
 285                         ENABLE_VDAC_DEV_GRP, TWL4030_VDAC_DEV_GRP);
 286
 287         return 0;
 288 }
 289
 290 static void beagle_panel_disable_tv(struct omap_display *display)
 291 {
 292         twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x00,
 293                         TWL4030_VDAC_DEDICATED);
 294         twl4030_i2c_write_u8(TWL4030_MODULE_PM_RECEIVER, 0x00,
 295                         TWL4030_VDAC_DEV_GRP);
 296 }
 297
 298 static struct omap_dss_display_config beagle_display_data_tv = {
 299         .type = OMAP_DISPLAY_TYPE_VENC,
 300         .name = "tv",
 301         .u.venc.type = OMAP_DSS_VENC_TYPE_SVIDEO,
 302         .panel_enable = beagle_panel_enable_tv,
 303         .panel_disable = beagle_panel_disable_tv,
 304 };
 305
 306 static struct omap_dss_board_info beagle_dss_data = {
 307         .num_displays = 2,
 308         .displays = {
 309                 &beagle_display_data_dvi,
 310                 &beagle_display_data_tv,
 311         }
 312 };
 313
 314 static struct platform_device beagle_dss_device = {
 315         .name          = "omapdss",
 316         .id            = -1,
 317         .dev            = {
 318                 .platform_data = &beagle_dss_data,
 319         },
 320 };
 321
 322 static void __init beagle_display_init(void)
 323 {
 324         int r;
 325
 326         r = gpio_request(beagle_display_data_dvi.panel_reset_gpio, "DVI reset");
 327         if (r < 0) {
 328                 printk(KERN_ERR "Unable to get DVI reset GPIO\n");
 329                 return;
 330         }
 331
 332         gpio_direction_output(beagle_display_data_dvi.panel_reset_gpio, 0);
 333 }
 334
 335 static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
 336         { OMAP_TAG_UART,        &omap3_beagle_uart_config },
 337 };
 338
 339 static struct platform_device *omap3_beagle_devices[] __initdata = {
 340         &beagle_dss_device,
 341         &leds_gpio,
 342         &keys_gpio,
 343 };
 344
 345 static void __init omap3beagle_flash_init(void)
 346 {
 347         u8 cs = 0;
 348         u8 nandcs = GPMC_CS_NUM + 1;
 349
 350         u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
 351
 352         /* find out the chip-select on which NAND exists */
 353         while (cs < GPMC_CS_NUM) {
 354                 u32 ret = 0;
 355                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 356
 357                 if ((ret & 0xC00) == 0x800) {
 358                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 359                         if (nandcs > GPMC_CS_NUM)
 360                                 nandcs = cs;
 361                 }
 362                 cs++;
 363         }
 364
 365         if (nandcs > GPMC_CS_NUM) {
 366                 printk(KERN_INFO "NAND: Unable to find configuration "
 367                                  "in GPMC\n ");
 368                 return;
 369         }
 370
 371         if (nandcs < GPMC_CS_NUM) {
 372                 omap3beagle_nand_data.cs = nandcs;
 373                 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
 374                         (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
 375                 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
 376
 377                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 378                 if (platform_device_register(&omap3beagle_nand_device) < 0)
 379                         printk(KERN_ERR "Unable to register NAND device\n");
 380         }
 381 }
 382
 383 static void __init omap3_beagle_init(void)
 384 {
 385         omap3_beagle_i2c_init();
 386         platform_add_devices(omap3_beagle_devices,
 387                         ARRAY_SIZE(omap3_beagle_devices));
 388         omap_board_config = omap3_beagle_config;
 389         omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
 390         omap_serial_init();
 391
 392         omap_cfg_reg(AH8_34XX_GPIO29);
 393         gpio_request(29, "mmc0_wp");
 394         gpio_direction_input(29);
 395         hsmmc_init();
 396
 397         omap_cfg_reg(J25_34XX_GPIO170);
 398
 399         usb_musb_init();
 400         usb_ehci_init();
 401         omap3beagle_flash_init();
 402         beagle_display_init();
 403 }
 404
 405 static void __init omap3_beagle_map_io(void)
 406 {
 407         omap2_set_globals_343x();
 408         omap2_map_common_io();
 409 }
 410
 411 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 412         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 413         .phys_io        = 0x48000000,
 414         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 415         .boot_params    = 0x80000100,
 416         .map_io         = omap3_beagle_map_io,
 417         .init_irq       = omap3_beagle_init_irq,
 418         .init_machine   = omap3_beagle_init,
 419         .timer          = &omap_timer,
 420 MACHINE_END