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 <plat/board.h>
  41 #include <plat/common.h>
  42 #include <plat/gpmc.h>
  43 #include <plat/nand.h>
  44 #include <plat/mux.h>
  45 #include <plat/usb.h>
  46 #include <plat/timer-gp.h>
  47 #include <plat/clock.h>
  48 #include <plat/omap-pm.h>
  49
  50 #include "mmc-twl4030.h"
  51 #include "pm.h"
  52 #include "omap3-opp.h"
  53
  54 #define GPMC_CS0_BASE  0x60
  55 #define GPMC_CS_SIZE   0x30
  56
  57 #define NAND_BLOCK_SIZE         SZ_128K
  58
  59 static struct mtd_partition omap3beagle_nand_partitions[] = {
  60         /* All the partition sizes are listed in terms of NAND block size */
  61         {
  62                 .name           = "X-Loader",
  63                 .offset         = 0,
  64                 .size           = 4 * NAND_BLOCK_SIZE,
  65                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  66         },
  67         {
  68                 .name           = "U-Boot",
  69                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x80000 */
  70                 .size           = 15 * NAND_BLOCK_SIZE,
  71                 .mask_flags     = MTD_WRITEABLE,        /* force read-only */
  72         },
  73         {
  74                 .name           = "U-Boot Env",
  75                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x260000 */
  76                 .size           = 1 * NAND_BLOCK_SIZE,
  77         },
  78         {
  79                 .name           = "Kernel",
  80                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x280000 */
  81                 .size           = 32 * NAND_BLOCK_SIZE,
  82         },
  83         {
  84                 .name           = "File System",
  85                 .offset         = MTDPART_OFS_APPEND,   /* Offset = 0x680000 */
  86                 .size           = MTDPART_SIZ_FULL,
  87         },
  88 };
  89
  90 static struct omap_nand_platform_data omap3beagle_nand_data = {
  91         .options        = NAND_BUSWIDTH_16,
  92         .parts          = omap3beagle_nand_partitions,
  93         .nr_parts       = ARRAY_SIZE(omap3beagle_nand_partitions),
  94         .dma_channel    = -1,           /* disable DMA in OMAP NAND driver */
  95         .nand_setup     = NULL,
  96         .dev_ready      = NULL,
  97 };
  98
  99 static struct resource omap3beagle_nand_resource = {
 100         .flags          = IORESOURCE_MEM,
 101 };
 102
 103 static struct platform_device omap3beagle_nand_device = {
 104         .name           = "omap2-nand",
 105         .id             = -1,
 106         .dev            = {
 107                 .platform_data  = &omap3beagle_nand_data,
 108         },
 109         .num_resources  = 1,
 110         .resource       = &omap3beagle_nand_resource,
 111 };
 112
 113 #include "sdram-micron-mt46h32m32lf-6.h"
 114
 115 static struct twl4030_hsmmc_info mmc[] = {
 116         {
 117                 .mmc            = 1,
 118                 .wires          = 8,
 119                 .gpio_wp        = 29,
 120         },
 121         {}      /* Terminator */
 122 };
 123
 124 static struct platform_device omap3_beagle_lcd_device = {
 125         .name           = "omap3beagle_lcd",
 126         .id             = -1,
 127 };
 128
 129 static struct omap_lcd_config omap3_beagle_lcd_config __initdata = {
 130         .ctrl_name      = "internal",
 131 };
 132
 133 static struct regulator_consumer_supply beagle_vmmc1_supply = {
 134         .supply                 = "vmmc",
 135 };
 136
 137 static struct regulator_consumer_supply beagle_vsim_supply = {
 138         .supply                 = "vmmc_aux",
 139 };
 140
 141 static struct gpio_led gpio_leds[];
 142
 143 static int beagle_twl_gpio_setup(struct device *dev,
 144                 unsigned gpio, unsigned ngpio)
 145 {
 146         if (system_rev >= 0x20 && system_rev <= 0x34301000) {
 147                 omap_cfg_reg(AG9_34XX_GPIO23);
 148                 mmc[0].gpio_wp = 23;
 149         } else {
 150                 omap_cfg_reg(AH8_34XX_GPIO29);
 151         }
 152         /* gpio + 0 is "mmc0_cd" (input/IRQ) */
 153         mmc[0].gpio_cd = gpio + 0;
 154         twl4030_mmc_init(mmc);
 155
 156         /* link regulators to MMC adapters */
 157         beagle_vmmc1_supply.dev = mmc[0].dev;
 158         beagle_vsim_supply.dev = mmc[0].dev;
 159
 160         /* REVISIT: need ehci-omap hooks for external VBUS
 161          * power switch and overcurrent detect
 162          */
 163
 164         gpio_request(gpio + 1, "EHCI_nOC");
 165         gpio_direction_input(gpio + 1);
 166
 167         /* TWL4030_GPIO_MAX + 0 == ledA, EHCI nEN_USB_PWR (out, active low) */
 168         gpio_request(gpio + TWL4030_GPIO_MAX, "nEN_USB_PWR");
 169         gpio_direction_output(gpio + TWL4030_GPIO_MAX, 1);
 170
 171         /* TWL4030_GPIO_MAX + 1 == ledB, PMU_STAT (out, active low LED) */
 172         gpio_leds[2].gpio = gpio + TWL4030_GPIO_MAX + 1;
 173
 174         return 0;
 175 }
 176
 177 static struct twl4030_gpio_platform_data beagle_gpio_data = {
 178         .gpio_base      = OMAP_MAX_GPIO_LINES,
 179         .irq_base       = TWL4030_GPIO_IRQ_BASE,
 180         .irq_end        = TWL4030_GPIO_IRQ_END,
 181         .use_leds       = true,
 182         .pullups        = BIT(1),
 183         .pulldowns      = BIT(2) | BIT(6) | BIT(7) | BIT(8) | BIT(13)
 184                                 | BIT(15) | BIT(16) | BIT(17),
 185         .setup          = beagle_twl_gpio_setup,
 186 };
 187
 188 static struct regulator_consumer_supply beagle_vdac_supply = {
 189         .supply         = "vdac",
 190         .dev            = &omap3_beagle_lcd_device.dev,
 191 };
 192
 193 static struct regulator_consumer_supply beagle_vdvi_supply = {
 194         .supply         = "vdvi",
 195         .dev            = &omap3_beagle_lcd_device.dev,
 196 };
 197
 198 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
 199 static struct regulator_init_data beagle_vmmc1 = {
 200         .constraints = {
 201                 .min_uV                 = 1850000,
 202                 .max_uV                 = 3150000,
 203                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 204                                         | REGULATOR_MODE_STANDBY,
 205                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 206                                         | REGULATOR_CHANGE_MODE
 207                                         | REGULATOR_CHANGE_STATUS,
 208         },
 209         .num_consumer_supplies  = 1,
 210         .consumer_supplies      = &beagle_vmmc1_supply,
 211 };
 212
 213 /* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
 214 static struct regulator_init_data beagle_vsim = {
 215         .constraints = {
 216                 .min_uV                 = 1800000,
 217                 .max_uV                 = 3000000,
 218                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 219                                         | REGULATOR_MODE_STANDBY,
 220                 .valid_ops_mask         = REGULATOR_CHANGE_VOLTAGE
 221                                         | REGULATOR_CHANGE_MODE
 222                                         | REGULATOR_CHANGE_STATUS,
 223         },
 224         .num_consumer_supplies  = 1,
 225         .consumer_supplies      = &beagle_vsim_supply,
 226 };
 227
 228 /* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
 229 static struct regulator_init_data beagle_vdac = {
 230         .constraints = {
 231                 .min_uV                 = 1800000,
 232                 .max_uV                 = 1800000,
 233                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 234                                         | REGULATOR_MODE_STANDBY,
 235                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 236                                         | REGULATOR_CHANGE_STATUS,
 237         },
 238         .num_consumer_supplies  = 1,
 239         .consumer_supplies      = &beagle_vdac_supply,
 240 };
 241
 242 /* VPLL2 for digital video outputs */
 243 static struct regulator_init_data beagle_vpll2 = {
 244         .constraints = {
 245                 .name                   = "VDVI",
 246                 .min_uV                 = 1800000,
 247                 .max_uV                 = 1800000,
 248                 .valid_modes_mask       = REGULATOR_MODE_NORMAL
 249                                         | REGULATOR_MODE_STANDBY,
 250                 .valid_ops_mask         = REGULATOR_CHANGE_MODE
 251                                         | REGULATOR_CHANGE_STATUS,
 252         },
 253         .num_consumer_supplies  = 1,
 254         .consumer_supplies      = &beagle_vdvi_supply,
 255 };
 256
 257 static struct twl4030_usb_data beagle_usb_data = {
 258         .usb_mode       = T2_USB_MODE_ULPI,
 259 };
 260
 261 static struct twl4030_platform_data beagle_twldata = {
 262         .irq_base       = TWL4030_IRQ_BASE,
 263         .irq_end        = TWL4030_IRQ_END,
 264
 265         /* platform_data for children goes here */
 266         .usb            = &beagle_usb_data,
 267         .gpio           = &beagle_gpio_data,
 268         .vmmc1          = &beagle_vmmc1,
 269         .vsim           = &beagle_vsim,
 270         .vdac           = &beagle_vdac,
 271         .vpll2          = &beagle_vpll2,
 272 };
 273
 274 static struct i2c_board_info __initdata beagle_i2c_boardinfo[] = {
 275         {
 276                 I2C_BOARD_INFO("twl4030", 0x48),
 277                 .flags = I2C_CLIENT_WAKE,
 278                 .irq = INT_34XX_SYS_NIRQ,
 279                 .platform_data = &beagle_twldata,
 280         },
 281 };
 282
 283 static int __init omap3_beagle_i2c_init(void)
 284 {
 285         omap_register_i2c_bus(1, 2600, beagle_i2c_boardinfo,
 286                         ARRAY_SIZE(beagle_i2c_boardinfo));
 287         /* Bus 3 is attached to the DVI port where devices like the pico DLP
 288          * projector don't work reliably with 400kHz */
 289         omap_register_i2c_bus(3, 100, NULL, 0);
 290         return 0;
 291 }
 292
 293 static struct gpio_led gpio_leds[] = {
 294         {
 295                 .name                   = "beagleboard::usr0",
 296                 .default_trigger        = "heartbeat",
 297                 .gpio                   = 150,
 298         },
 299         {
 300                 .name                   = "beagleboard::usr1",
 301                 .default_trigger        = "mmc0",
 302                 .gpio                   = 149,
 303         },
 304         {
 305                 .name                   = "beagleboard::pmu_stat",
 306                 .gpio                   = -EINVAL,      /* gets replaced */
 307                 .active_low             = true,
 308         },
 309 };
 310
 311 static struct gpio_led_platform_data gpio_led_info = {
 312         .leds           = gpio_leds,
 313         .num_leds       = ARRAY_SIZE(gpio_leds),
 314 };
 315
 316 static struct platform_device leds_gpio = {
 317         .name   = "leds-gpio",
 318         .id     = -1,
 319         .dev    = {
 320                 .platform_data  = &gpio_led_info,
 321         },
 322 };
 323
 324 static struct gpio_keys_button gpio_buttons[] = {
 325         {
 326                 .code                   = BTN_EXTRA,
 327                 .gpio                   = 7,
 328                 .desc                   = "user",
 329                 .wakeup                 = 1,
 330         },
 331 };
 332
 333 static struct gpio_keys_platform_data gpio_key_info = {
 334         .buttons        = gpio_buttons,
 335         .nbuttons       = ARRAY_SIZE(gpio_buttons),
 336 };
 337
 338 static struct platform_device keys_gpio = {
 339         .name   = "gpio-keys",
 340         .id     = -1,
 341         .dev    = {
 342                 .platform_data  = &gpio_key_info,
 343         },
 344 };
 345
 346 static struct omap_board_config_kernel omap3_beagle_config[] __initdata = {
 347         { OMAP_TAG_LCD,         &omap3_beagle_lcd_config },
 348 };
 349
 350 static void __init omap3_beagle_init_irq(void)
 351 {
 352         omap_board_config = omap3_beagle_config;
 353         omap_board_config_size = ARRAY_SIZE(omap3_beagle_config);
 354         omap2_init_common_hw(mt46h32m32lf6_sdrc_params,
 355                              mt46h32m32lf6_sdrc_params, omap3_mpu_rate_table,
 356                              omap3_dsp_rate_table, omap3_l3_rate_table);
 357         omap_init_irq();
 358 #ifdef CONFIG_OMAP_32K_TIMER
 359         omap2_gp_clockevent_set_gptimer(12);
 360 #endif
 361         omap_gpio_init();
 362 }
 363
 364 static struct platform_device *omap3_beagle_devices[] __initdata = {
 365         &omap3_beagle_lcd_device,
 366         &leds_gpio,
 367         &keys_gpio,
 368 };
 369
 370 static void __init omap3beagle_flash_init(void)
 371 {
 372         u8 cs = 0;
 373         u8 nandcs = GPMC_CS_NUM + 1;
 374
 375         u32 gpmc_base_add = OMAP34XX_GPMC_VIRT;
 376
 377         /* find out the chip-select on which NAND exists */
 378         while (cs < GPMC_CS_NUM) {
 379                 u32 ret = 0;
 380                 ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
 381
 382                 if ((ret & 0xC00) == 0x800) {
 383                         printk(KERN_INFO "Found NAND on CS%d\n", cs);
 384                         if (nandcs > GPMC_CS_NUM)
 385                                 nandcs = cs;
 386                 }
 387                 cs++;
 388         }
 389
 390         if (nandcs > GPMC_CS_NUM) {
 391                 printk(KERN_INFO "NAND: Unable to find configuration "
 392                                  "in GPMC\n ");
 393                 return;
 394         }
 395
 396         if (nandcs < GPMC_CS_NUM) {
 397                 omap3beagle_nand_data.cs = nandcs;
 398                 omap3beagle_nand_data.gpmc_cs_baseaddr = (void *)
 399                         (gpmc_base_add + GPMC_CS0_BASE + nandcs * GPMC_CS_SIZE);
 400                 omap3beagle_nand_data.gpmc_baseaddr = (void *) (gpmc_base_add);
 401
 402                 printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
 403                 if (platform_device_register(&omap3beagle_nand_device) < 0)
 404                         printk(KERN_ERR "Unable to register NAND device\n");
 405         }
 406 }
 407
 408 static struct ehci_hcd_omap_platform_data ehci_pdata __initconst = {
 409
 410         .port_mode[0] = EHCI_HCD_OMAP_MODE_PHY,
 411         .port_mode[1] = EHCI_HCD_OMAP_MODE_PHY,
 412         .port_mode[2] = EHCI_HCD_OMAP_MODE_UNKNOWN,
 413
 414         .phy_reset  = true,
 415         .reset_gpio_port[0]  = -EINVAL,
 416         .reset_gpio_port[1]  = 147,
 417         .reset_gpio_port[2]  = -EINVAL
 418 };
 419
 420 static void __init omap3_beagle_init(void)
 421 {
 422         omap3_beagle_i2c_init();
 423         platform_add_devices(omap3_beagle_devices,
 424                         ARRAY_SIZE(omap3_beagle_devices));
 425         omap_serial_init();
 426
 427         omap_cfg_reg(J25_34XX_GPIO170);
 428         gpio_request(170, "DVI_nPD");
 429         /* REVISIT leave DVI powered down until it's needed ... */
 430         gpio_direction_output(170, true);
 431
 432         usb_musb_init();
 433         usb_ehci_init(&ehci_pdata);
 434         omap3beagle_flash_init();
 435
 436         /* Ensure SDRC pins are mux'd for self-refresh */
 437         omap_cfg_reg(H16_34XX_SDRC_CKE0);
 438         omap_cfg_reg(H17_34XX_SDRC_CKE1);
 439 }
 440
 441 static void __init omap3_beagle_map_io(void)
 442 {
 443         omap2_set_globals_343x();
 444         omap2_map_common_io();
 445 }
 446
 447 MACHINE_START(OMAP3_BEAGLE, "OMAP3 Beagle Board")
 448         /* Maintainer: Syed Mohammed Khasim - http://beagleboard.org */
 449         .phys_io        = 0x48000000,
 450         .io_pg_offst    = ((0xfa000000) >> 18) & 0xfffc,
 451         .boot_params    = 0x80000100,
 452         .map_io         = omap3_beagle_map_io,
 453         .init_irq       = omap3_beagle_init_irq,
 454         .init_machine   = omap3_beagle_init,
 455         .timer          = &omap_timer,
 456 MACHINE_END