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/clk.h>
  21 #include <linux/dm9000.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 davinci_i2c_platform_data i2c_pdata = {
 113         .bus_freq       = 400   /* kHz */,
 114         .bus_delay      = 0     /* usec */,
 115         .sda_pin        = 15,
 116         .scl_pin        = 14,
 117 };
 118
 119 static int dm355evm_mmc_gpios = -EINVAL;
 120
 121 static void dm355evm_mmcsd_gpios(unsigned gpio)
 122 {
 123         gpio_request(gpio + 0, "mmc0_ro");
 124         gpio_request(gpio + 1, "mmc0_cd");
 125         gpio_request(gpio + 2, "mmc1_ro");
 126         gpio_request(gpio + 3, "mmc1_cd");
 127
 128         /* we "know" these are input-only so we don't
 129          * need to call gpio_direction_input()
 130          */
 131
 132         dm355evm_mmc_gpios = gpio;
 133 }
 134
 135 static struct i2c_board_info dm355evm_i2c_info[] = {
 136         {       I2C_BOARD_INFO("dm355evm_msp", 0x25),
 137                 .platform_data = dm355evm_mmcsd_gpios,
 138         },
 139         /* { plus irq  }, */
 140         { I2C_BOARD_INFO("tlv320aic33", 0x1b), },
 141 };
 142
 143 static void __init evm_init_i2c(void)
 144 {
 145         davinci_init_i2c(&i2c_pdata);
 146
 147         gpio_request(5, "dm355evm_msp");
 148         gpio_direction_input(5);
 149         dm355evm_i2c_info[0].irq = gpio_to_irq(5);
 150
 151         i2c_register_board_info(1, dm355evm_i2c_info,
 152                         ARRAY_SIZE(dm355evm_i2c_info));
 153 }
 154
 155 static struct resource dm355evm_dm9000_rsrc[] = {
 156         {
 157                 /* addr */
 158                 .start  = 0x04014000,
 159                 .end    = 0x04014001,
 160                 .flags  = IORESOURCE_MEM,
 161         }, {
 162                 /* data */
 163                 .start  = 0x04014002,
 164                 .end    = 0x04014003,
 165                 .flags  = IORESOURCE_MEM,
 166         }, {
 167                 .flags  = IORESOURCE_IRQ
 168                         | IORESOURCE_IRQ_HIGHEDGE /* rising (active high) */,
 169         },
 170 };
 171
 172 static struct dm9000_plat_data dm335evm_dm9000_platdata;
 173
 174 static struct platform_device dm355evm_dm9000 = {
 175         .name           = "dm9000",
 176         .id             = -1,
 177         .resource       = dm355evm_dm9000_rsrc,
 178         .num_resources  = ARRAY_SIZE(dm355evm_dm9000_rsrc),
 179         .dev            = {
 180                 .platform_data = &dm335evm_dm9000_platdata,
 181         },
 182 };
 183
 184 static struct tvp514x_platform_data tvp5146_pdata = {
 185         .clk_polarity = 0,
 186         .hs_polarity = 1,
 187         .vs_polarity = 1
 188 };
 189
 190 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
 191 /* Inputs available at the TVP5146 */
 192 static struct v4l2_input tvp5146_inputs[] = {
 193         {
 194                 .index = 0,
 195                 .name = "Composite",
 196                 .type = V4L2_INPUT_TYPE_CAMERA,
 197                 .std = TVP514X_STD_ALL,
 198         },
 199         {
 200                 .index = 1,
 201                 .name = "S-Video",
 202                 .type = V4L2_INPUT_TYPE_CAMERA,
 203                 .std = TVP514X_STD_ALL,
 204         },
 205 };
 206
 207 /*
 208  * this is the route info for connecting each input to decoder
 209  * ouput that goes to vpfe. There is a one to one correspondence
 210  * with tvp5146_inputs
 211  */
 212 static struct vpfe_route tvp5146_routes[] = {
 213         {
 214                 .input = INPUT_CVBS_VI2B,
 215                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 216         },
 217         {
 218                 .input = INPUT_SVIDEO_VI2C_VI1C,
 219                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 220         },
 221 };
 222
 223 static struct vpfe_subdev_info vpfe_sub_devs[] = {
 224         {
 225                 .name = "tvp5146",
 226                 .grp_id = 0,
 227                 .num_inputs = ARRAY_SIZE(tvp5146_inputs),
 228                 .inputs = tvp5146_inputs,
 229                 .routes = tvp5146_routes,
 230                 .can_route = 1,
 231                 .ccdc_if_params = {
 232                         .if_type = VPFE_BT656,
 233                         .hdpol = VPFE_PINPOL_POSITIVE,
 234                         .vdpol = VPFE_PINPOL_POSITIVE,
 235                 },
 236                 .board_info = {
 237                         I2C_BOARD_INFO("tvp5146", 0x5d),
 238                         .platform_data = &tvp5146_pdata,
 239                 },
 240         }
 241 };
 242
 243 static struct vpfe_config vpfe_cfg = {
 244         .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
 245         .i2c_adapter_id = 1,
 246         .sub_devs = vpfe_sub_devs,
 247         .card_name = "DM355 EVM",
 248         .ccdc = "DM355 CCDC",
 249 };
 250
 251 /* venc standards timings */
 252 static struct vpbe_enc_mode_info dm355evm_enc_preset_timing[] = {
 253         {
 254                 .name           = "ntsc",
 255                 .timings_type   = VPBE_ENC_STD,
 256                 .std_id         = V4L2_STD_NTSC,
 257                 .interlaced     = 1,
 258                 .xres           = 720,
 259                 .yres           = 480,
 260                 .aspect         = {11, 10},
 261                 .fps            = {30000, 1001},
 262                 .left_margin    = 0x79,
 263                 .upper_margin   = 0x10,
 264         },
 265         {
 266                 .name           = "pal",
 267                 .timings_type   = VPBE_ENC_STD,
 268                 .std_id         = V4L2_STD_PAL,
 269                 .interlaced     = 1,
 270                 .xres           = 720,
 271                 .yres           = 576,
 272                 .aspect         = {54, 59},
 273                 .fps            = {25, 1},
 274                 .left_margin    = 0x7E,
 275                 .upper_margin   = 0x16
 276         },
 277 };
 278
 279 #define VENC_STD_ALL    (V4L2_STD_NTSC | V4L2_STD_PAL)
 280
 281 /*
 282  * The outputs available from VPBE + ecnoders. Keep the
 283  * the order same as that of encoders. First those from venc followed by that
 284  * from encoders. Index in the output refers to index on a particular encoder.
 285  * Driver uses this index to pass it to encoder when it supports more than
 286  * one output. Application uses index of the array to set an output.
 287  */
 288 static struct vpbe_output dm355evm_vpbe_outputs[] = {
 289         {
 290                 .output         = {
 291                         .index          = 0,
 292                         .name           = "Composite",
 293                         .type           = V4L2_OUTPUT_TYPE_ANALOG,
 294                         .std            = VENC_STD_ALL,
 295                         .capabilities   = V4L2_OUT_CAP_STD,
 296                 },
 297                 .subdev_name    = DM355_VPBE_VENC_SUBDEV_NAME,
 298                 .default_mode   = "ntsc",
 299                 .num_modes      = ARRAY_SIZE(dm355evm_enc_preset_timing),
 300                 .modes          = dm355evm_enc_preset_timing,
 301                 .if_params      = MEDIA_BUS_FMT_FIXED,
 302         },
 303 };
 304
 305 static struct vpbe_config dm355evm_display_cfg = {
 306         .module_name    = "dm355-vpbe-display",
 307         .i2c_adapter_id = 1,
 308         .osd            = {
 309                 .module_name    = DM355_VPBE_OSD_SUBDEV_NAME,
 310         },
 311         .venc           = {
 312                 .module_name    = DM355_VPBE_VENC_SUBDEV_NAME,
 313         },
 314         .num_outputs    = ARRAY_SIZE(dm355evm_vpbe_outputs),
 315         .outputs        = dm355evm_vpbe_outputs,
 316 };
 317
 318 static struct platform_device *davinci_evm_devices[] __initdata = {
 319         &dm355evm_dm9000,
 320         &davinci_nand_device,
 321 };
 322
 323 static void __init dm355_evm_map_io(void)
 324 {
 325         dm355_init();
 326 }
 327
 328 static int dm355evm_mmc_get_cd(int module)
 329 {
 330         if (!gpio_is_valid(dm355evm_mmc_gpios))
 331                 return -ENXIO;
 332         /* low == card present */
 333         return !gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 1);
 334 }
 335
 336 static int dm355evm_mmc_get_ro(int module)
 337 {
 338         if (!gpio_is_valid(dm355evm_mmc_gpios))
 339                 return -ENXIO;
 340         /* high == card's write protect switch active */
 341         return gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 0);
 342 }
 343
 344 static struct davinci_mmc_config dm355evm_mmc_config = {
 345         .get_cd         = dm355evm_mmc_get_cd,
 346         .get_ro         = dm355evm_mmc_get_ro,
 347         .wires          = 4,
 348         .max_freq       = 50000000,
 349         .caps           = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
 350 };
 351
 352 /* Don't connect anything to J10 unless you're only using USB host
 353  * mode *and* have to do so with some kind of gender-bender.  If
 354  * you have proper Mini-B or Mini-A cables (or Mini-A adapters)
 355  * the ID pin won't need any help.
 356  */
 357 #define USB_ID_VALUE    1       /* ID pulled low */
 358
 359 static struct spi_eeprom at25640a = {
 360         .byte_len       = SZ_64K / 8,
 361         .name           = "at25640a",
 362         .page_size      = 32,
 363         .flags          = EE_ADDR2,
 364 };
 365
 366 static struct spi_board_info dm355_evm_spi_info[] __initconst = {
 367         {
 368                 .modalias       = "at25",
 369                 .platform_data  = &at25640a,
 370                 .max_speed_hz   = 10 * 1000 * 1000,     /* at 3v3 */
 371                 .bus_num        = 0,
 372                 .chip_select    = 0,
 373                 .mode           = SPI_MODE_0,
 374         },
 375 };
 376
 377 static __init void dm355_evm_init(void)
 378 {
 379         struct clk *aemif;
 380         int ret;
 381
 382         ret = dm355_gpio_register();
 383         if (ret)
 384                 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
 385
 386         gpio_request(1, "dm9000");
 387         gpio_direction_input(1);
 388         dm355evm_dm9000_rsrc[2].start = gpio_to_irq(1);
 389
 390         aemif = clk_get(&dm355evm_dm9000.dev, "aemif");
 391         if (!WARN(IS_ERR(aemif), "unable to get AEMIF clock\n"))
 392                 clk_prepare_enable(aemif);
 393
 394         platform_add_devices(davinci_evm_devices,
 395                              ARRAY_SIZE(davinci_evm_devices));
 396         evm_init_i2c();
 397         davinci_serial_init(dm355_serial_device);
 398
 399         /* NOTE:  NAND flash timings set by the UBL are slower than
 400          * needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
 401          * but could be 0x0400008c for about 25% faster page reads.
 402          */
 403
 404         gpio_request(2, "usb_id_toggle");
 405         gpio_direction_output(2, USB_ID_VALUE);
 406         /* irlml6401 switches over 1A in under 8 msec */
 407         davinci_setup_usb(1000, 8);
 408
 409         davinci_setup_mmc(0, &dm355evm_mmc_config);
 410         davinci_setup_mmc(1, &dm355evm_mmc_config);
 411
 412         dm355_init_video(&vpfe_cfg, &dm355evm_display_cfg);
 413
 414         dm355_init_spi0(BIT(0), dm355_evm_spi_info,
 415                         ARRAY_SIZE(dm355_evm_spi_info));
 416
 417         /* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
 418         dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN);
 419 }
 420
 421 MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM")
 422         .atag_offset  = 0x100,
 423         .map_io       = dm355_evm_map_io,
 424         .init_irq     = davinci_irq_init,
 425         .init_time      = davinci_timer_init,
 426         .init_machine = dm355_evm_init,
 427         .init_late      = davinci_init_late,
 428         .dma_zone_size  = SZ_128M,
 429         .restart        = davinci_restart,
 430 MACHINE_END