arch/arm/mach-davinci/board-dm355-evm.c

   1 /*
   2  * TI DaVinci EVM board support
   3  *
   4  * Author: Kevin Hilman, Deep Root Systems, LLC
   5  *
   6  * 2007 (c) MontaVista Software, Inc. This file is licensed under
   7  * the terms of the GNU General Public License version 2. This program
   8  * is licensed "as is" without any warranty of any kind, whether express
   9  * or implied.
  10  */
  11 #include <linux/kernel.h>
  12 #include <linux/init.h>
  13 #include <linux/err.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/mtd/mtd.h>
  16 #include <linux/mtd/partitions.h>
  17 #include <linux/mtd/rawnand.h>
  18 #include <linux/i2c.h>
  19 #include <linux/gpio.h>
  20 #include <linux/gpio/machine.h>
  21 #include <linux/clk.h>
  22 #include <linux/videodev2.h>
  23 #include <media/i2c/tvp514x.h>
  24 #include <linux/spi/spi.h>
  25 #include <linux/spi/eeprom.h>
  26 #include <linux/platform_data/gpio-davinci.h>
  27 #include <linux/platform_data/i2c-davinci.h>
  28 #include <linux/platform_data/mtd-davinci.h>
  29 #include <linux/platform_data/mmc-davinci.h>
  30 #include <linux/platform_data/usb-davinci.h>
  31
  32 #include <asm/mach-types.h>
  33 #include <asm/mach/arch.h>
  34
  35 #include <mach/serial.h>
  36 #include <mach/common.h>
  37
  38 #include "davinci.h"
  39
  40 /* NOTE:  this is geared for the standard config, with a socketed
  41  * 2 GByte Micron NAND (MT29F16G08FAA) using 128KB sectors.  If you
  42  * swap chips, maybe with a different block size, partitioning may
  43  * need to be changed.
  44  */
  45 #define NAND_BLOCK_SIZE         SZ_128K
  46
  47 static struct mtd_partition davinci_nand_partitions[] = {
  48         {
  49                 /* UBL (a few copies) plus U-Boot */
  50                 .name           = "bootloader",
  51                 .offset         = 0,
  52                 .size           = 15 * NAND_BLOCK_SIZE,
  53                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
  54         }, {
  55                 /* U-Boot environment */
  56                 .name           = "params",
  57                 .offset         = MTDPART_OFS_APPEND,
  58                 .size           = 1 * NAND_BLOCK_SIZE,
  59                 .mask_flags     = 0,
  60         }, {
  61                 .name           = "kernel",
  62                 .offset         = MTDPART_OFS_APPEND,
  63                 .size           = SZ_4M,
  64                 .mask_flags     = 0,
  65         }, {
  66                 .name           = "filesystem1",
  67                 .offset         = MTDPART_OFS_APPEND,
  68                 .size           = SZ_512M,
  69                 .mask_flags     = 0,
  70         }, {
  71                 .name           = "filesystem2",
  72                 .offset         = MTDPART_OFS_APPEND,
  73                 .size           = MTDPART_SIZ_FULL,
  74                 .mask_flags     = 0,
  75         }
  76         /* two blocks with bad block table (and mirror) at the end */
  77 };
  78
  79 static struct davinci_nand_pdata davinci_nand_data = {
  80         .mask_chipsel           = BIT(14),
  81         .parts                  = davinci_nand_partitions,
  82         .nr_parts               = ARRAY_SIZE(davinci_nand_partitions),
  83         .ecc_mode               = NAND_ECC_HW,
  84         .bbt_options            = NAND_BBT_USE_FLASH,
  85         .ecc_bits               = 4,
  86 };
  87
  88 static struct resource davinci_nand_resources[] = {
  89         {
  90                 .start          = DM355_ASYNC_EMIF_DATA_CE0_BASE,
  91                 .end            = DM355_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
  92                 .flags          = IORESOURCE_MEM,
  93         }, {
  94                 .start          = DM355_ASYNC_EMIF_CONTROL_BASE,
  95                 .end            = DM355_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
  96                 .flags          = IORESOURCE_MEM,
  97         },
  98 };
  99
 100 static struct platform_device davinci_nand_device = {
 101         .name                   = "davinci_nand",
 102         .id                     = 0,
 103
 104         .num_resources          = ARRAY_SIZE(davinci_nand_resources),
 105         .resource               = davinci_nand_resources,
 106
 107         .dev                    = {
 108                 .platform_data  = &davinci_nand_data,
 109         },
 110 };
 111
 112 static struct gpiod_lookup_table i2c_recovery_gpiod_table = {
 113         .dev_id = "i2c_davinci",
 114         .table = {
 115                 GPIO_LOOKUP("davinci_gpio", 15, "sda",
 116                             GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
 117                 GPIO_LOOKUP("davinci_gpio", 14, "scl",
 118                             GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
 119         },
 120 };
 121
 122 static struct davinci_i2c_platform_data i2c_pdata = {
 123         .bus_freq       = 400   /* kHz */,
 124         .bus_delay      = 0     /* usec */,
 125         .gpio_recovery  = true,
 126 };
 127
 128 static int dm355evm_mmc_gpios = -EINVAL;
 129
 130 static void dm355evm_mmcsd_gpios(unsigned gpio)
 131 {
 132         gpio_request(gpio + 0, "mmc0_ro");
 133         gpio_request(gpio + 1, "mmc0_cd");
 134         gpio_request(gpio + 2, "mmc1_ro");
 135         gpio_request(gpio + 3, "mmc1_cd");
 136
 137         /* we "know" these are input-only so we don't
 138          * need to call gpio_direction_input()
 139          */
 140
 141         dm355evm_mmc_gpios = gpio;
 142 }
 143
 144 static struct i2c_board_info dm355evm_i2c_info[] = {
 145         {       I2C_BOARD_INFO("dm355evm_msp", 0x25),
 146                 .platform_data = dm355evm_mmcsd_gpios,
 147         },
 148         /* { plus irq  }, */
 149         { I2C_BOARD_INFO("tlv320aic33", 0x1b), },
 150 };
 151
 152 static void __init evm_init_i2c(void)
 153 {
 154         gpiod_add_lookup_table(&i2c_recovery_gpiod_table);
 155         davinci_init_i2c(&i2c_pdata);
 156
 157         gpio_request(5, "dm355evm_msp");
 158         gpio_direction_input(5);
 159         dm355evm_i2c_info[0].irq = gpio_to_irq(5);
 160
 161         i2c_register_board_info(1, dm355evm_i2c_info,
 162                         ARRAY_SIZE(dm355evm_i2c_info));
 163 }
 164
 165 static struct resource dm355evm_dm9000_rsrc[] = {
 166         {
 167                 /* addr */
 168                 .start  = 0x04014000,
 169                 .end    = 0x04014001,
 170                 .flags  = IORESOURCE_MEM,
 171         }, {
 172                 /* data */
 173                 .start  = 0x04014002,
 174                 .end    = 0x04014003,
 175                 .flags  = IORESOURCE_MEM,
 176         }, {
 177                 .flags  = IORESOURCE_IRQ
 178                         | IORESOURCE_IRQ_HIGHEDGE /* rising (active high) */,
 179         },
 180 };
 181
 182 static struct platform_device dm355evm_dm9000 = {
 183         .name           = "dm9000",
 184         .id             = -1,
 185         .resource       = dm355evm_dm9000_rsrc,
 186         .num_resources  = ARRAY_SIZE(dm355evm_dm9000_rsrc),
 187 };
 188
 189 static struct tvp514x_platform_data tvp5146_pdata = {
 190         .clk_polarity = 0,
 191         .hs_polarity = 1,
 192         .vs_polarity = 1
 193 };
 194
 195 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
 196 /* Inputs available at the TVP5146 */
 197 static struct v4l2_input tvp5146_inputs[] = {
 198         {
 199                 .index = 0,
 200                 .name = "Composite",
 201                 .type = V4L2_INPUT_TYPE_CAMERA,
 202                 .std = TVP514X_STD_ALL,
 203         },
 204         {
 205                 .index = 1,
 206                 .name = "S-Video",
 207                 .type = V4L2_INPUT_TYPE_CAMERA,
 208                 .std = TVP514X_STD_ALL,
 209         },
 210 };
 211
 212 /*
 213  * this is the route info for connecting each input to decoder
 214  * ouput that goes to vpfe. There is a one to one correspondence
 215  * with tvp5146_inputs
 216  */
 217 static struct vpfe_route tvp5146_routes[] = {
 218         {
 219                 .input = INPUT_CVBS_VI2B,
 220                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 221         },
 222         {
 223                 .input = INPUT_SVIDEO_VI2C_VI1C,
 224                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 225         },
 226 };
 227
 228 static struct vpfe_subdev_info vpfe_sub_devs[] = {
 229         {
 230                 .name = "tvp5146",
 231                 .grp_id = 0,
 232                 .num_inputs = ARRAY_SIZE(tvp5146_inputs),
 233                 .inputs = tvp5146_inputs,
 234                 .routes = tvp5146_routes,
 235                 .can_route = 1,
 236                 .ccdc_if_params = {
 237                         .if_type = VPFE_BT656,
 238                         .hdpol = VPFE_PINPOL_POSITIVE,
 239                         .vdpol = VPFE_PINPOL_POSITIVE,
 240                 },
 241                 .board_info = {
 242                         I2C_BOARD_INFO("tvp5146", 0x5d),
 243                         .platform_data = &tvp5146_pdata,
 244                 },
 245         }
 246 };
 247
 248 static struct vpfe_config vpfe_cfg = {
 249         .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
 250         .i2c_adapter_id = 1,
 251         .sub_devs = vpfe_sub_devs,
 252         .card_name = "DM355 EVM",
 253         .ccdc = "DM355 CCDC",
 254 };
 255
 256 /* venc standards timings */
 257 static struct vpbe_enc_mode_info dm355evm_enc_preset_timing[] = {
 258         {
 259                 .name           = "ntsc",
 260                 .timings_type   = VPBE_ENC_STD,
 261                 .std_id         = V4L2_STD_NTSC,
 262                 .interlaced     = 1,
 263                 .xres           = 720,
 264                 .yres           = 480,
 265                 .aspect         = {11, 10},
 266                 .fps            = {30000, 1001},
 267                 .left_margin    = 0x79,
 268                 .upper_margin   = 0x10,
 269         },
 270         {
 271                 .name           = "pal",
 272                 .timings_type   = VPBE_ENC_STD,
 273                 .std_id         = V4L2_STD_PAL,
 274                 .interlaced     = 1,
 275                 .xres           = 720,
 276                 .yres           = 576,
 277                 .aspect         = {54, 59},
 278                 .fps            = {25, 1},
 279                 .left_margin    = 0x7E,
 280                 .upper_margin   = 0x16
 281         },
 282 };
 283
 284 #define VENC_STD_ALL    (V4L2_STD_NTSC | V4L2_STD_PAL)
 285
 286 /*
 287  * The outputs available from VPBE + ecnoders. Keep the
 288  * the order same as that of encoders. First those from venc followed by that
 289  * from encoders. Index in the output refers to index on a particular encoder.
 290  * Driver uses this index to pass it to encoder when it supports more than
 291  * one output. Application uses index of the array to set an output.
 292  */
 293 static struct vpbe_output dm355evm_vpbe_outputs[] = {
 294         {
 295                 .output         = {
 296                         .index          = 0,
 297                         .name           = "Composite",
 298                         .type           = V4L2_OUTPUT_TYPE_ANALOG,
 299                         .std            = VENC_STD_ALL,
 300                         .capabilities   = V4L2_OUT_CAP_STD,
 301                 },
 302                 .subdev_name    = DM355_VPBE_VENC_SUBDEV_NAME,
 303                 .default_mode   = "ntsc",
 304                 .num_modes      = ARRAY_SIZE(dm355evm_enc_preset_timing),
 305                 .modes          = dm355evm_enc_preset_timing,
 306                 .if_params      = MEDIA_BUS_FMT_FIXED,
 307         },
 308 };
 309
 310 static struct vpbe_config dm355evm_display_cfg = {
 311         .module_name    = "dm355-vpbe-display",
 312         .i2c_adapter_id = 1,
 313         .osd            = {
 314                 .module_name    = DM355_VPBE_OSD_SUBDEV_NAME,
 315         },
 316         .venc           = {
 317                 .module_name    = DM355_VPBE_VENC_SUBDEV_NAME,
 318         },
 319         .num_outputs    = ARRAY_SIZE(dm355evm_vpbe_outputs),
 320         .outputs        = dm355evm_vpbe_outputs,
 321 };
 322
 323 static struct platform_device *davinci_evm_devices[] __initdata = {
 324         &dm355evm_dm9000,
 325         &davinci_nand_device,
 326 };
 327
 328 static void __init dm355_evm_map_io(void)
 329 {
 330         dm355_init();
 331 }
 332
 333 static int dm355evm_mmc_get_cd(int module)
 334 {
 335         if (!gpio_is_valid(dm355evm_mmc_gpios))
 336                 return -ENXIO;
 337         /* low == card present */
 338         return !gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 1);
 339 }
 340
 341 static int dm355evm_mmc_get_ro(int module)
 342 {
 343         if (!gpio_is_valid(dm355evm_mmc_gpios))
 344                 return -ENXIO;
 345         /* high == card's write protect switch active */
 346         return gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 0);
 347 }
 348
 349 static struct davinci_mmc_config dm355evm_mmc_config = {
 350         .get_cd         = dm355evm_mmc_get_cd,
 351         .get_ro         = dm355evm_mmc_get_ro,
 352         .wires          = 4,
 353         .max_freq       = 50000000,
 354         .caps           = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
 355 };
 356
 357 /* Don't connect anything to J10 unless you're only using USB host
 358  * mode *and* have to do so with some kind of gender-bender.  If
 359  * you have proper Mini-B or Mini-A cables (or Mini-A adapters)
 360  * the ID pin won't need any help.
 361  */
 362 #define USB_ID_VALUE    1       /* ID pulled low */
 363
 364 static struct spi_eeprom at25640a = {
 365         .byte_len       = SZ_64K / 8,
 366         .name           = "at25640a",
 367         .page_size      = 32,
 368         .flags          = EE_ADDR2,
 369 };
 370
 371 static struct spi_board_info dm355_evm_spi_info[] __initconst = {
 372         {
 373                 .modalias       = "at25",
 374                 .platform_data  = &at25640a,
 375                 .max_speed_hz   = 10 * 1000 * 1000,     /* at 3v3 */
 376                 .bus_num        = 0,
 377                 .chip_select    = 0,
 378                 .mode           = SPI_MODE_0,
 379         },
 380 };
 381
 382 static __init void dm355_evm_init(void)
 383 {
 384         struct clk *aemif;
 385         int ret;
 386
 387         ret = dm355_gpio_register();
 388         if (ret)
 389                 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
 390
 391         gpio_request(1, "dm9000");
 392         gpio_direction_input(1);
 393         dm355evm_dm9000_rsrc[2].start = gpio_to_irq(1);
 394
 395         aemif = clk_get(&dm355evm_dm9000.dev, "aemif");
 396         if (!WARN(IS_ERR(aemif), "unable to get AEMIF clock\n"))
 397                 clk_prepare_enable(aemif);
 398
 399         platform_add_devices(davinci_evm_devices,
 400                              ARRAY_SIZE(davinci_evm_devices));
 401         evm_init_i2c();
 402         davinci_serial_init(dm355_serial_device);
 403
 404         /* NOTE:  NAND flash timings set by the UBL are slower than
 405          * needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
 406          * but could be 0x0400008c for about 25% faster page reads.
 407          */
 408
 409         gpio_request(2, "usb_id_toggle");
 410         gpio_direction_output(2, USB_ID_VALUE);
 411         /* irlml6401 switches over 1A in under 8 msec */
 412         davinci_setup_usb(1000, 8);
 413
 414         davinci_setup_mmc(0, &dm355evm_mmc_config);
 415         davinci_setup_mmc(1, &dm355evm_mmc_config);
 416
 417         dm355_init_video(&vpfe_cfg, &dm355evm_display_cfg);
 418
 419         dm355_init_spi0(BIT(0), dm355_evm_spi_info,
 420                         ARRAY_SIZE(dm355_evm_spi_info));
 421
 422         /* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
 423         dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN);
 424 }
 425
 426 MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM")
 427         .atag_offset  = 0x100,
 428         .map_io       = dm355_evm_map_io,
 429         .init_irq     = davinci_irq_init,
 430         .init_time      = davinci_timer_init,
 431         .init_machine = dm355_evm_init,
 432         .init_late      = davinci_init_late,
 433         .dma_zone_size  = SZ_128M,
 434         .restart        = davinci_restart,
 435 MACHINE_END