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/mtd/mtd.h>
  28 #include <linux/mtd/partitions.h>
  29 #include <linux/mtd/nand.h>
  30
  31 #include <linux/regulator/machine.h>
  32 #include <linux/i2c/twl4030.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/common.h>
  42 #include <mach/gpmc.h>
  43 #include <mach/nand.h>
  44 #include <mach/mux.h>
  45 #include <mach/usb.h>
  46 #include <mach/timer-gp.h>
  47
  48 #include "mmc-twl4030.h"
  49
  50 #define GPMC_CS0_BASE  0x60
  51 #define GPMC_CS_SIZE   0x30
  52
  53 #define NAND_BLOCK_SIZE         SZ_128K
  54
  55 static struct mtd_partition omap3beagle_nand_partitions[] = {
  56         /* All the partition sizes are listed in terms of NAND block size */
  57         {
  58                 .name           = "X-Loader",
  59                 .offset         = 0,
  60                 .size           = 4 * NAND_BLOCK_SIZE,
  61                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  62         },
  63         {
  64                 .name           = "U-Boot",
  65                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
  66                 .size           = 15 * NAND_BLOCK_SIZE,
  67                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  68         },
  69         {
  70                 .name           = "U-Boot Env",
  71                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
  72                 .size           = 1 * NAND_BLOCK_SIZE,
  73         },
  74         {
  75                 .name           = "Kernel",
  76                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
  77                 .size           = 32 * NAND_BLOCK_SIZE,
  78         },
  79         {
  80                 .name           = "File System",
  81                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
  82                 .size           = MTDPART_SIZ_FULL,
  83         },
  84 };
  85
  86 static struct omap_nand_platform_data omap3beagle_nand_data = {
  87         .options        = NAND_BUSWIDTH_16,
  88         .parts          = omap3beagle_nand_partitions,
  89         .nr_parts       = ARRAY_SIZE(omap3beagle_nand_partitions),
  90         .dma_channel    = -1,           /* disable DMA in OMAP NAND driver */
  91         .nand_setup     = NULL,
  92         .dev_ready      = NULL,
  93 };
  94
  95 static struct resource omap3beagle_nand_resource = {
  96         .flags          = IORESOURCE_MEM,
  97 };
  98
  99 static struct platform_device omap3beagle_nand_device = {
 100         .name           = "omap2-nand",
 101         .id             = -1,
 102         .dev            = {
 103                 .platform_data  = &omap3beagle_nand_data,
 104         },
 105         .num_resources  = 1,
 106         .resource       = &omap3beagle_nand_resource,
 107 };
 108
 109 #include "sdram-micron-mt46h32m32lf-6.h"
 110
 111 static struct twl4030_hsmmc_info mmc[] = {
 112         {
 113                 .mmc            = 1,
 114                 .wires          = 8,
 115                 .gpio_wp        = 29,
 116         },
 117         {}      /* Terminator */
 118 };
 119
 120 static struct platform_device omap3_beagle_lcd_device = {
 121         .name           = "omap3beagle_lcd",
 122         .id             = -1,
 123 };
 124
 125 static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
 126         .ctrl_name      = "internal",
 127 };
 128
 129 static struct regulator_consumer_supply beagle_vmmc1_supply = {
 130         .supply                 = "vmmc",
 131 };
 132
 133 static struct regulator_consumer_supply beagle_vsim_supply = {
 134         .supply                 = "vmmc_aux",
 135 };
 136
 137 static struct gpio_led gpio_leds[];
 138
 139 static int beagle_twl_gpio_setup(struct device *dev,
 140                 unsigned gpio, unsigned ngpio)
 141 {
 142         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
 143         omap_cfg_reg(AH8_34XX_GPIO29);
 144         mmc[0].gpio_cd = gpio + 0;
 145         twl4030_mmc_init(mmc);
 146
 147         /* link regulators to MMC adapters */
 148         beagle_vmmc1_supply.dev = mmc[0].dev;
 149         beagle_vsim_supply.dev = mmc[0].dev;
 150
 151         /* REVISIT: need ehci-omap hooks for external VBUS
 152          * power switch and overcurrent detect
 153          */
 154
 155         gpio_request(gpio + 1, "EHCI_nOC");
 156         gpio_direction_input(gpio + 1);
 157
 158         /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
 159         gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
 160         gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);
 161
 162         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
 163         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 164
 165         return 0;
 166 }
 167
 168 static struct twl4030_gpio_platform_data beagle_gpio_data = {
 169         .gpio_base      = OMAP_MAX_GPIO_LINES,
 170         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 171         .irq_end        = TWL4030_GPIO_IRQ_END,
 172         .use_leds       = true,
 173         .pullups        = BIT(1),
 174         .pulldowns      = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
 175                                 | BIT(15) | BIT(16) | BIT(17),
 176         .setup          = beagle_twl_gpio_setup,
 177 };
 178
 179 static struct regulator_consumer_supply beagle_vdac_supply = {
 180         .supply         = "vdac",
 181         .dev            = &omap3_beagle_lcd_device.dev,
 182 };
 183
 184 static struct regulator_consumer_supply beagle_vdvi_supply = {
 185         .supply         = "vdvi",
 186         .dev            = &omap3_beagle_lcd_device.dev,
 187 };
 188
 189 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 190 static struct regulator_init_data beagle_vmmc1 = {
 191         .constraints = {
 192                 .min_uV                 = 1850000,
 193                 .max_uV                 = 3150000,
 194                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 195                                         | REGULATOR_MODE_STANDBY,
 196                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 197                                         | REGULATOR_CHANGE_MODE
 198                                         | REGULATOR_CHANGE_STATUS,
 199         },
 200         .num_consumer_supplies  = 1,
 201         .consumer_supplies      = &beagle_vmmc1_supply,
 202 };
 203
 204 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
 205 static struct regulator_init_data beagle_vsim = {
 206         .constraints = {
 207                 .min_uV                 = 1800000,
 208                 .max_uV                 = 3000000,
 209                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 210                                         | REGULATOR_MODE_STANDBY,
 211                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 212                                         | REGULATOR_CHANGE_MODE
 213                                         | REGULATOR_CHANGE_STATUS,
 214         },
 215         .num_consumer_supplies  = 1,
 216         .consumer_supplies      = &beagle_vsim_supply,
 217 };
 218
 219 /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
 220 static struct regulator_init_data beagle_vdac = {
 221         .constraints = {
 222                 .min_uV                 = 1800000,
 223                 .max_uV                 = 1800000,
 224                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 225                                         | REGULATOR_MODE_STANDBY,
 226                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 227                                         | REGULATOR_CHANGE_STATUS,
 228         },
 229         .num_consumer_supplies  = 1,
 230         .consumer_supplies      = &beagle_vdac_supply,
 231 };
 232
 233 /* VPLL2 for digital video outputs */
 234 static struct regulator_init_data beagle_vpll2 = {
 235         .constraints = {
 236                 .name                   = "VDVI",
 237                 .min_uV                 = 1800000,
 238                 .max_uV                 = 1800000,
 239                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 240                                         | REGULATOR_MODE_STANDBY,
 241                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 242                                         | REGULATOR_CHANGE_STATUS,
 243         },
 244         .num_consumer_supplies  = 1,
 245         .consumer_supplies      = &beagle_vdvi_supply,
 246 };
 247
 248 static struct twl4030_usb_data beagle_usb_data = {
 249         .usb_mode       = T2_USB_MODE_ULPI,
 250 };
 251
 252 static struct twl4030_platform_data beagle_twldata = {
 253         .irq_base       = TWL4030_IRQ_BASE,
 254         .irq_end        = TWL4030_IRQ_END,
 255
 256         /* platform_data for children goes here */
 257         .usb            = &beagle_usb_data,
 258         .gpio           = &beagle_gpio_data,
 259         .vmmc1          = &beagle_vmmc1,
 260         .vsim           = &beagle_vsim,
 261         .vdac           = &beagle_vdac,
 262         .vpll2          = &beagle_vpll2,
 263 };
 264
 265 static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
 266         {
 267                 I2C_BOARD_INFO("twl4030", 0x48),
 268                 .flags = I2C_CLIENT_WAKE,
 269                 .irq = INT_34XX_SYS_NIRQ,
 270                 .platform_data = &beagle_twldata,
 271         },
 272 };
 273
 274 static int __init omap3_beagle_i2c_init(void)
 275 {
 276         omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
 277                         ARRAY_SIZE(beagle_i2c_boardinfo));
 278         /* Bus 3 is attached to the DVI port where devices like the pico DLP
 279          * projector don't work reliably with 400kHz */
 280         omap_register_i2c_bus(3, 100, NULL, 0);
 281         return 0;
 282 }
 283
 284 static struct gpio_led gpio_leds[] = {
 285         {
 286                 .name                   = "beagleboard::usr0",
 287                 .default_trigger        = "heartbeat",
 288                 .gpio                   = 150,
 289         },
 290         {
 291                 .name                   = "beagleboard::usr1",
 292                 .default_trigger        = "mmc0",
 293                 .gpio                   = 149,
 294         },
 295         {
 296                 .name                   = "beagleboard::pmu_stat",
 297                 .gpio                   = -EINVAL,      /* gets replaced */
 298                 .active_low             = true,
 299         },
 300 };
 301
 302 static struct gpio_led_platform_data gpio_led_info = {
 303         .leds           = gpio_leds,
 304         .num_leds       = ARRAY_SIZE(gpio_leds),
 305 };
 306
 307 static struct platform_device leds_gpio = {
 308         .name   = "leds-gpio",
 309         .id     = -1,
 310         .dev    = {
 311                 .platform_data  = &gpio_led_info,
 312         },
 313 };
 314
 315 static struct gpio_keys_button gpio_buttons[] = {
 316         {
 317                 .code                   = BTN_EXTRA,
 318                 .gpio                   = 7,
 319                 .desc                   = "user",
 320                 .wakeup                 = 1,
 321         },
 322 };
 323
 324 static struct gpio_keys_platform_data gpio_key_info = {
 325         .buttons        = gpio_buttons,
 326         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 327 };
 328
 329 static struct platform_device keys_gpio = {
 330         .name   = "gpio-keys",
 331         .id     = -1,
 332         .dev    = {
 333                 .platform_data  = &gpio_key_info,
 334         },
 335 };
 336
 337 static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
 338         { OMAP_TAG_LCD,         &omap3_beagle_lcd_config },
 339 };
 340
 341 static void __init omap3_beagle_init_irq(void)
 342 {
 343         omap_board_config = omap3_beagle_config;
 344         omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
 345         omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
 346                              mt46h32m32lf6_sdrc_params);
 347         omap_init_irq();
 348 #ifdef CONFIG_OMAP_32K_TIMER
 349         omap2_gp_clockevent_set_gptimer(12);
 350 #endif
 351         omap_gpio_init();
 352 }
 353
 354 static struct platform_device *omap3_beagle_devices[] __initdata = {
 355         &omap3_beagle_lcd_device,
 356         &leds_gpio,
 357         &keys_gpio,
 358 };
 359
 360 static void __init omap3beagle_flash_init(void)
 361 {
 362         u8 cs = 0;
 363         u8 nandcs = GPMC_CS_NUM + 1;
 364
 365         u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
 366
 367         /* find out the chip-select on which NAND exists */
 368         while (cs < GPMC_CS_NUM) {
 369                 u32 ret = 0;
 370                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 371
 372                 if ((ret & 0xC00) == 0x800) {
 373                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 374                         if (nandcs > GPMC_CS_NUM)
 375                                 nandcs = cs;
 376                 }
 377                 cs++;
 378         }
 379
 380         if (nandcs > GPMC_CS_NUM) {
 381                 printk(KERN_INFO "NAND: Unable to find configuration "
 382                                  "in GPMC\n ");
 383                 return;
 384         }
 385
 386         if (nandcs < GPMC_CS_NUM) {
 387                 omap3beagle_nand_data.cs = nandcs;
 388                 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
 389                         (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
 390                 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
 391
 392                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 393                 if (platform_device_register(&omap3beagle_nand_device) < 0)
 394                         printk(KERN_ERR "Unable to register NAND device\n");
 395         }
 396 }
 397
 398 static void __init omap3_beagle_init(void)
 399 {
 400         omap3_beagle_i2c_init();
 401         platform_add_devices(omap3_beagle_devices,
 402                         ARRAY_SIZE(omap3_beagle_devices));
 403         omap_serial_init();
 404
 405         omap_cfg_reg(J25_34XX_GPIO170);
 406         gpio_request(170, "DVI_nPD");
 407         /* REVISIT leave DVI powered down until it's needed ... */
 408         gpio_direction_output(170, true);
 409
 410         usb_musb_init();
 411         omap3beagle_flash_init();
 412
 413         /* Ensure SDRC pins are mux'd for self-refresh */
 414         omap_cfg_reg(H16_34XX_SDRC_CKE0);
 415         omap_cfg_reg(H17_34XX_SDRC_CKE1);
 416 }
 417
 418 static void __init omap3_beagle_map_io(void)
 419 {
 420         omap2_set_globals_343x();
 421         omap2_map_common_io();
 422 }
 423
 424 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 425         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 426         .phys_io        = 0x48000000,
 427         .io_pg_offst    = ((0xd8000000) >> 18) & 0xfffc,
 428         .boot_params    = 0x80000100,
 429         .map_io         = omap3_beagle_map_io,
 430         .init_irq       = omap3_beagle_init_irq,
 431         .init_machine   = omap3_beagle_init,
 432         .timer          = &omap_timer,
 433 MACHINE_END