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/dm9000.h>
  23 #include <linux/videodev2.h>
  24 #include <media/i2c/tvp514x.h>
  25 #include <linux/spi/spi.h>
  26 #include <linux/spi/eeprom.h>
  27 #include <linux/platform_data/gpio-davinci.h>
  28 #include <linux/platform_data/i2c-davinci.h>
  29 #include <linux/platform_data/mtd-davinci.h>
  30 #include <linux/platform_data/mmc-davinci.h>
  31 #include <linux/platform_data/usb-davinci.h>
  32
  33 #include <asm/mach-types.h>
  34 #include <asm/mach/arch.h>
  35
  36 #include <mach/serial.h>
  37 #include <mach/common.h>
  38
  39 #include "davinci.h"
  40
  41 /* NOTE:  this is geared for the standard config, with a socketed
  42  * 2 GByte Micron NAND (MT29F16G08FAA) using 128KB sectors.  If you
  43  * swap chips, maybe with a different block size, partitioning may
  44  * need to be changed.
  45  */
  46 #define NAND_BLOCK_SIZE         SZ_128K
  47
  48 static struct mtd_partition davinci_nand_partitions[] = {
  49         {
  50                 /* UBL (a few copies) plus U-Boot */
  51                 .name           = "bootloader",
  52                 .offset         = 0,
  53                 .size           = 15 * NAND_BLOCK_SIZE,
  54                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
  55         }, {
  56                 /* U-Boot environment */
  57                 .name           = "params",
  58                 .offset         = MTDPART_OFS_APPEND,
  59                 .size           = 1 * NAND_BLOCK_SIZE,
  60                 .mask_flags     = 0,
  61         }, {
  62                 .name           = "kernel",
  63                 .offset         = MTDPART_OFS_APPEND,
  64                 .size           = SZ_4M,
  65                 .mask_flags     = 0,
  66         }, {
  67                 .name           = "filesystem1",
  68                 .offset         = MTDPART_OFS_APPEND,
  69                 .size           = SZ_512M,
  70                 .mask_flags     = 0,
  71         }, {
  72                 .name           = "filesystem2",
  73                 .offset         = MTDPART_OFS_APPEND,
  74                 .size           = MTDPART_SIZ_FULL,
  75                 .mask_flags     = 0,
  76         }
  77         /* two blocks with bad block table (and mirror) at the end */
  78 };
  79
  80 static struct davinci_nand_pdata davinci_nand_data = {
  81         .core_chipsel           = 0,
  82         .mask_chipsel           = BIT(14),
  83         .parts                  = davinci_nand_partitions,
  84         .nr_parts               = ARRAY_SIZE(davinci_nand_partitions),
  85         .ecc_mode               = NAND_ECC_HW,
  86         .bbt_options            = NAND_BBT_USE_FLASH,
  87         .ecc_bits               = 4,
  88 };
  89
  90 static struct resource davinci_nand_resources[] = {
  91         {
  92                 .start          = DM355_ASYNC_EMIF_DATA_CE0_BASE,
  93                 .end            = DM355_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
  94                 .flags          = IORESOURCE_MEM,
  95         }, {
  96                 .start          = DM355_ASYNC_EMIF_CONTROL_BASE,
  97                 .end            = DM355_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
  98                 .flags          = IORESOURCE_MEM,
  99         },
 100 };
 101
 102 static struct platform_device davinci_nand_device = {
 103         .name                   = "davinci_nand",
 104         .id                     = 0,
 105
 106         .num_resources          = ARRAY_SIZE(davinci_nand_resources),
 107         .resource               = davinci_nand_resources,
 108
 109         .dev                    = {
 110                 .platform_data  = &davinci_nand_data,
 111         },
 112 };
 113
 114 #define DM355_I2C_SDA_PIN       GPIO_TO_PIN(0, 15)
 115 #define DM355_I2C_SCL_PIN       GPIO_TO_PIN(0, 14)
 116
 117 static struct gpiod_lookup_table i2c_recovery_gpiod_table = {
 118         .dev_id = "i2c_davinci.1",
 119         .table = {
 120                 GPIO_LOOKUP("davinci_gpio", DM355_I2C_SDA_PIN, "sda",
 121                             GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
 122                 GPIO_LOOKUP("davinci_gpio", DM355_I2C_SCL_PIN, "scl",
 123                             GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN),
 124                 { }
 125         },
 126 };
 127
 128 static struct davinci_i2c_platform_data i2c_pdata = {
 129         .bus_freq       = 400   /* kHz */,
 130         .bus_delay      = 0     /* usec */,
 131         .gpio_recovery  = true,
 132 };
 133
 134 static int dm355evm_mmc_gpios = -EINVAL;
 135
 136 static void dm355evm_mmcsd_gpios(unsigned gpio)
 137 {
 138         gpio_request(gpio + 0, "mmc0_ro");
 139         gpio_request(gpio + 1, "mmc0_cd");
 140         gpio_request(gpio + 2, "mmc1_ro");
 141         gpio_request(gpio + 3, "mmc1_cd");
 142
 143         /* we "know" these are input-only so we don't
 144          * need to call gpio_direction_input()
 145          */
 146
 147         dm355evm_mmc_gpios = gpio;
 148 }
 149
 150 static struct i2c_board_info dm355evm_i2c_info[] = {
 151         {       I2C_BOARD_INFO("dm355evm_msp", 0x25),
 152                 .platform_data = dm355evm_mmcsd_gpios,
 153         },
 154         /* { plus irq  }, */
 155         { I2C_BOARD_INFO("tlv320aic33", 0x1b), },
 156 };
 157
 158 static void __init evm_init_i2c(void)
 159 {
 160         gpiod_add_lookup_table(&i2c_recovery_gpiod_table);
 161         davinci_init_i2c(&i2c_pdata);
 162
 163         gpio_request(5, "dm355evm_msp");
 164         gpio_direction_input(5);
 165         dm355evm_i2c_info[0].irq = gpio_to_irq(5);
 166
 167         i2c_register_board_info(1, dm355evm_i2c_info,
 168                         ARRAY_SIZE(dm355evm_i2c_info));
 169 }
 170
 171 static struct resource dm355evm_dm9000_rsrc[] = {
 172         {
 173                 /* addr */
 174                 .start  = 0x04014000,
 175                 .end    = 0x04014001,
 176                 .flags  = IORESOURCE_MEM,
 177         }, {
 178                 /* data */
 179                 .start  = 0x04014002,
 180                 .end    = 0x04014003,
 181                 .flags  = IORESOURCE_MEM,
 182         }, {
 183                 .flags  = IORESOURCE_IRQ
 184                         | IORESOURCE_IRQ_HIGHEDGE /* rising (active high) */,
 185         },
 186 };
 187
 188 static struct dm9000_plat_data dm335evm_dm9000_platdata;
 189
 190 static struct platform_device dm355evm_dm9000 = {
 191         .name           = "dm9000",
 192         .id             = -1,
 193         .resource       = dm355evm_dm9000_rsrc,
 194         .num_resources  = ARRAY_SIZE(dm355evm_dm9000_rsrc),
 195         .dev            = {
 196                 .platform_data = &dm335evm_dm9000_platdata,
 197         },
 198 };
 199
 200 static struct tvp514x_platform_data tvp5146_pdata = {
 201         .clk_polarity = 0,
 202         .hs_polarity = 1,
 203         .vs_polarity = 1
 204 };
 205
 206 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
 207 /* Inputs available at the TVP5146 */
 208 static struct v4l2_input tvp5146_inputs[] = {
 209         {
 210                 .index = 0,
 211                 .name = "Composite",
 212                 .type = V4L2_INPUT_TYPE_CAMERA,
 213                 .std = TVP514X_STD_ALL,
 214         },
 215         {
 216                 .index = 1,
 217                 .name = "S-Video",
 218                 .type = V4L2_INPUT_TYPE_CAMERA,
 219                 .std = TVP514X_STD_ALL,
 220         },
 221 };
 222
 223 /*
 224  * this is the route info for connecting each input to decoder
 225  * ouput that goes to vpfe. There is a one to one correspondence
 226  * with tvp5146_inputs
 227  */
 228 static struct vpfe_route tvp5146_routes[] = {
 229         {
 230                 .input = INPUT_CVBS_VI2B,
 231                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 232         },
 233         {
 234                 .input = INPUT_SVIDEO_VI2C_VI1C,
 235                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 236         },
 237 };
 238
 239 static struct vpfe_subdev_info vpfe_sub_devs[] = {
 240         {
 241                 .name = "tvp5146",
 242                 .grp_id = 0,
 243                 .num_inputs = ARRAY_SIZE(tvp5146_inputs),
 244                 .inputs = tvp5146_inputs,
 245                 .routes = tvp5146_routes,
 246                 .can_route = 1,
 247                 .ccdc_if_params = {
 248                         .if_type = VPFE_BT656,
 249                         .hdpol = VPFE_PINPOL_POSITIVE,
 250                         .vdpol = VPFE_PINPOL_POSITIVE,
 251                 },
 252                 .board_info = {
 253                         I2C_BOARD_INFO("tvp5146", 0x5d),
 254                         .platform_data = &tvp5146_pdata,
 255                 },
 256         }
 257 };
 258
 259 static struct vpfe_config vpfe_cfg = {
 260         .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
 261         .i2c_adapter_id = 1,
 262         .sub_devs = vpfe_sub_devs,
 263         .card_name = "DM355 EVM",
 264         .ccdc = "DM355 CCDC",
 265 };
 266
 267 /* venc standards timings */
 268 static struct vpbe_enc_mode_info dm355evm_enc_preset_timing[] = {
 269         {
 270                 .name           = "ntsc",
 271                 .timings_type   = VPBE_ENC_STD,
 272                 .std_id         = V4L2_STD_NTSC,
 273                 .interlaced     = 1,
 274                 .xres           = 720,
 275                 .yres           = 480,
 276                 .aspect         = {11, 10},
 277                 .fps            = {30000, 1001},
 278                 .left_margin    = 0x79,
 279                 .upper_margin   = 0x10,
 280         },
 281         {
 282                 .name           = "pal",
 283                 .timings_type   = VPBE_ENC_STD,
 284                 .std_id         = V4L2_STD_PAL,
 285                 .interlaced     = 1,
 286                 .xres           = 720,
 287                 .yres           = 576,
 288                 .aspect         = {54, 59},
 289                 .fps            = {25, 1},
 290                 .left_margin    = 0x7E,
 291                 .upper_margin   = 0x16
 292         },
 293 };
 294
 295 #define VENC_STD_ALL    (V4L2_STD_NTSC | V4L2_STD_PAL)
 296
 297 /*
 298  * The outputs available from VPBE + ecnoders. Keep the
 299  * the order same as that of encoders. First those from venc followed by that
 300  * from encoders. Index in the output refers to index on a particular encoder.
 301  * Driver uses this index to pass it to encoder when it supports more than
 302  * one output. Application uses index of the array to set an output.
 303  */
 304 static struct vpbe_output dm355evm_vpbe_outputs[] = {
 305         {
 306                 .output         = {
 307                         .index          = 0,
 308                         .name           = "Composite",
 309                         .type           = V4L2_OUTPUT_TYPE_ANALOG,
 310                         .std            = VENC_STD_ALL,
 311                         .capabilities   = V4L2_OUT_CAP_STD,
 312                 },
 313                 .subdev_name    = DM355_VPBE_VENC_SUBDEV_NAME,
 314                 .default_mode   = "ntsc",
 315                 .num_modes      = ARRAY_SIZE(dm355evm_enc_preset_timing),
 316                 .modes          = dm355evm_enc_preset_timing,
 317                 .if_params      = MEDIA_BUS_FMT_FIXED,
 318         },
 319 };
 320
 321 static struct vpbe_config dm355evm_display_cfg = {
 322         .module_name    = "dm355-vpbe-display",
 323         .i2c_adapter_id = 1,
 324         .osd            = {
 325                 .module_name    = DM355_VPBE_OSD_SUBDEV_NAME,
 326         },
 327         .venc           = {
 328                 .module_name    = DM355_VPBE_VENC_SUBDEV_NAME,
 329         },
 330         .num_outputs    = ARRAY_SIZE(dm355evm_vpbe_outputs),
 331         .outputs        = dm355evm_vpbe_outputs,
 332 };
 333
 334 static struct platform_device *davinci_evm_devices[] __initdata = {
 335         &dm355evm_dm9000,
 336         &davinci_nand_device,
 337 };
 338
 339 static void __init dm355_evm_map_io(void)
 340 {
 341         dm355_init();
 342 }
 343
 344 static int dm355evm_mmc_get_cd(int module)
 345 {
 346         if (!gpio_is_valid(dm355evm_mmc_gpios))
 347                 return -ENXIO;
 348         /* low == card present */
 349         return !gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 1);
 350 }
 351
 352 static int dm355evm_mmc_get_ro(int module)
 353 {
 354         if (!gpio_is_valid(dm355evm_mmc_gpios))
 355                 return -ENXIO;
 356         /* high == card's write protect switch active */
 357         return gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 0);
 358 }
 359
 360 static struct davinci_mmc_config dm355evm_mmc_config = {
 361         .get_cd         = dm355evm_mmc_get_cd,
 362         .get_ro         = dm355evm_mmc_get_ro,
 363         .wires          = 4,
 364         .max_freq       = 50000000,
 365         .caps           = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
 366 };
 367
 368 /* Don't connect anything to J10 unless you're only using USB host
 369  * mode *and* have to do so with some kind of gender-bender.  If
 370  * you have proper Mini-B or Mini-A cables (or Mini-A adapters)
 371  * the ID pin won't need any help.
 372  */
 373 #define USB_ID_VALUE    1       /* ID pulled low */
 374
 375 static struct spi_eeprom at25640a = {
 376         .byte_len       = SZ_64K / 8,
 377         .name           = "at25640a",
 378         .page_size      = 32,
 379         .flags          = EE_ADDR2,
 380 };
 381
 382 static const struct spi_board_info dm355_evm_spi_info[] __initconst = {
 383         {
 384                 .modalias       = "at25",
 385                 .platform_data  = &at25640a,
 386                 .max_speed_hz   = 10 * 1000 * 1000,     /* at 3v3 */
 387                 .bus_num        = 0,
 388                 .chip_select    = 0,
 389                 .mode           = SPI_MODE_0,
 390         },
 391 };
 392
 393 static __init void dm355_evm_init(void)
 394 {
 395         struct clk *aemif;
 396         int ret;
 397
 398         dm355_register_clocks();
 399
 400         ret = dm355_gpio_register();
 401         if (ret)
 402                 pr_warn("%s: GPIO init failed: %d\n", __func__, ret);
 403
 404         gpio_request(1, "dm9000");
 405         gpio_direction_input(1);
 406         dm355evm_dm9000_rsrc[2].start = gpio_to_irq(1);
 407
 408         aemif = clk_get(&dm355evm_dm9000.dev, "aemif");
 409         if (!WARN(IS_ERR(aemif), "unable to get AEMIF clock\n"))
 410                 clk_prepare_enable(aemif);
 411
 412         platform_add_devices(davinci_evm_devices,
 413                              ARRAY_SIZE(davinci_evm_devices));
 414         evm_init_i2c();
 415         davinci_serial_init(dm355_serial_device);
 416
 417         /* NOTE:  NAND flash timings set by the UBL are slower than
 418          * needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
 419          * but could be 0x0400008c for about 25% faster page reads.
 420          */
 421
 422         gpio_request(2, "usb_id_toggle");
 423         gpio_direction_output(2, USB_ID_VALUE);
 424         /* irlml6401 switches over 1A in under 8 msec */
 425         davinci_setup_usb(1000, 8);
 426
 427         davinci_setup_mmc(0, &dm355evm_mmc_config);
 428         davinci_setup_mmc(1, &dm355evm_mmc_config);
 429
 430         dm355_init_video(&vpfe_cfg, &dm355evm_display_cfg);
 431
 432         dm355_init_spi0(BIT(0), dm355_evm_spi_info,
 433                         ARRAY_SIZE(dm355_evm_spi_info));
 434
 435         /* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
 436         dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN);
 437 }
 438
 439 MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM")
 440         .atag_offset  = 0x100,
 441         .map_io       = dm355_evm_map_io,
 442         .init_irq     = dm355_init_irq,
 443         .init_time      = dm355_init_time,
 444         .init_machine = dm355_evm_init,
 445         .init_late      = davinci_init_late,
 446         .dma_zone_size  = SZ_128M,
 447 MACHINE_END