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