LXR linux/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/nand.h>
  18#include <linux/i2c.h>
  19#include <linux/gpio.h>
  20#include <linux/clk.h>
  21#include <linux/videodev2.h>
  22#include <media/tvp514x.h>
  23#include <linux/spi/spi.h>
  24#include <linux/spi/eeprom.h>
  25#include <linux/platform_data/gpio-davinci.h>
  26#include <linux/platform_data/i2c-davinci.h>
  27#include <linux/platform_data/mtd-davinci.h>
  28#include <linux/platform_data/mmc-davinci.h>
  29#include <linux/platform_data/usb-davinci.h>
  30
  31#include <asm/mach-types.h>
  32#include <asm/mach/arch.h>
  33
  34#include <mach/serial.h>
  35#include <mach/common.h>
  36
  37#include "davinci.h"
  38
  39/* NOTE:  this is geared for the standard config, with a socketed
  40 * 2 GByte Micron NAND (MT29F16G08FAA) using 128KB sectors.  If you
  41 * swap chips, maybe with a different block size, partitioning may
  42 * need to be changed.
  43 */
  44#define NAND_BLOCK_SIZE         SZ_128K
  45
  46static struct mtd_partition davinci_nand_partitions[] = {
  47        {
  48                /* UBL (a few copies) plus U-Boot */
  49                .name           = "bootloader",
  50                .offset         = 0,
  51                .size           = 15 * NAND_BLOCK_SIZE,
  52                .mask_flags     = MTD_WRITEABLE, /* force read-only */
  53        }, {
  54                /* U-Boot environment */
  55                .name           = "params",
  56                .offset         = MTDPART_OFS_APPEND,
  57                .size           = 1 * NAND_BLOCK_SIZE,
  58                .mask_flags     = 0,
  59        }, {
  60                .name           = "kernel",
  61                .offset         = MTDPART_OFS_APPEND,
  62                .size           = SZ_4M,
  63                .mask_flags     = 0,
  64        }, {
  65                .name           = "filesystem1",
  66                .offset         = MTDPART_OFS_APPEND,
  67                .size           = SZ_512M,
  68                .mask_flags     = 0,
  69        }, {
  70                .name           = "filesystem2",
  71                .offset         = MTDPART_OFS_APPEND,
  72                .size           = MTDPART_SIZ_FULL,
  73                .mask_flags     = 0,
  74        }
  75        /* two blocks with bad block table (and mirror) at the end */
  76};
  77
  78static struct davinci_nand_pdata davinci_nand_data = {
  79        .mask_chipsel           = BIT(14),
  80        .parts                  = davinci_nand_partitions,
  81        .nr_parts               = ARRAY_SIZE(davinci_nand_partitions),
  82        .ecc_mode               = NAND_ECC_HW,
  83        .bbt_options            = NAND_BBT_USE_FLASH,
  84        .ecc_bits               = 4,
  85};
  86
  87static struct resource davinci_nand_resources[] = {
  88        {
  89                .start          = DM355_ASYNC_EMIF_DATA_CE0_BASE,
  90                .end            = DM355_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
  91                .flags          = IORESOURCE_MEM,
  92        }, {
  93                .start          = DM355_ASYNC_EMIF_CONTROL_BASE,
  94                .end            = DM355_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
  95                .flags          = IORESOURCE_MEM,
  96        },
  97};
  98
  99static struct platform_device davinci_nand_device = {
 100        .name                   = "davinci_nand",
 101        .id                     = 0,
 102
 103        .num_resources          = ARRAY_SIZE(davinci_nand_resources),
 104        .resource               = davinci_nand_resources,
 105
 106        .dev                    = {
 107                .platform_data  = &davinci_nand_data,
 108        },
 109};
 110
 111static struct davinci_i2c_platform_data i2c_pdata = {
 112        .bus_freq       = 400   /* kHz */,
 113        .bus_delay      = 0     /* usec */,
 114        .sda_pin        = 15,
 115        .scl_pin        = 14,
 116};
 117
 118static struct snd_platform_data dm355_evm_snd_data;
 119
 120static int dm355evm_mmc_gpios = -EINVAL;
 121
 122static void dm355evm_mmcsd_gpios(unsigned gpio)
 123{
 124        gpio_request(gpio + 0, "mmc0_ro");
 125        gpio_request(gpio + 1, "mmc0_cd");
 126        gpio_request(gpio + 2, "mmc1_ro");
 127        gpio_request(gpio + 3, "mmc1_cd");
 128
 129        /* we "know" these are input-only so we don't
 130         * need to call gpio_direction_input()
 131         */
 132
 133        dm355evm_mmc_gpios = gpio;
 134}
 135
 136static struct i2c_board_info dm355evm_i2c_info[] = {
 137        {       I2C_BOARD_INFO("dm355evm_msp", 0x25),
 138                .platform_data = dm355evm_mmcsd_gpios,
 139        },
 140        /* { plus irq  }, */
 141        { I2C_BOARD_INFO("tlv320aic33", 0x1b), },
 142};
 143
 144static void __init evm_init_i2c(void)
 145{
 146        davinci_init_i2c(&i2c_pdata);
 147
 148        gpio_request(5, "dm355evm_msp");
 149        gpio_direction_input(5);
 150        dm355evm_i2c_info[0].irq = gpio_to_irq(5);
 151
 152        i2c_register_board_info(1, dm355evm_i2c_info,
 153                        ARRAY_SIZE(dm355evm_i2c_info));
 154}
 155
 156static struct resource dm355evm_dm9000_rsrc[] = {
 157        {
 158                /* addr */
 159                .start  = 0x04014000,
 160                .end    = 0x04014001,
 161                .flags  = IORESOURCE_MEM,
 162        }, {
 163                /* data */
 164                .start  = 0x04014002,
 165                .end    = 0x04014003,
 166                .flags  = IORESOURCE_MEM,
 167        }, {
 168                .flags  = IORESOURCE_IRQ
 169                        | IORESOURCE_IRQ_HIGHEDGE /* rising (active high) */,
 170        },
 171};
 172
 173static struct platform_device dm355evm_dm9000 = {
 174        .name           = "dm9000",
 175        .id             = -1,
 176        .resource       = dm355evm_dm9000_rsrc,
 177        .num_resources  = ARRAY_SIZE(dm355evm_dm9000_rsrc),
 178};
 179
 180static struct tvp514x_platform_data tvp5146_pdata = {
 181        .clk_polarity = 0,
 182        .hs_polarity = 1,
 183        .vs_polarity = 1
 184};
 185
 186#define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
 187/* Inputs available at the TVP5146 */
 188static struct v4l2_input tvp5146_inputs[] = {
 189        {
 190                .index = 0,
 191                .name = "Composite",
 192                .type = V4L2_INPUT_TYPE_CAMERA,
 193                .std = TVP514X_STD_ALL,
 194        },
 195        {
 196                .index = 1,
 197                .name = "S-Video",
 198                .type = V4L2_INPUT_TYPE_CAMERA,
 199                .std = TVP514X_STD_ALL,
 200        },
 201};
 202
 203/*
 204 * this is the route info for connecting each input to decoder
 205 * ouput that goes to vpfe. There is a one to one correspondence
 206 * with tvp5146_inputs
 207 */
 208static struct vpfe_route tvp5146_routes[] = {
 209        {
 210                .input = INPUT_CVBS_VI2B,
 211                .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 212        },
 213        {
 214                .input = INPUT_SVIDEO_VI2C_VI1C,
 215                .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 216        },
 217};
 218
 219static struct vpfe_subdev_info vpfe_sub_devs[] = {
 220        {
 221                .name = "tvp5146",
 222                .grp_id = 0,
 223                .num_inputs = ARRAY_SIZE(tvp5146_inputs),
 224                .inputs = tvp5146_inputs,
 225                .routes = tvp5146_routes,
 226                .can_route = 1,
 227                .ccdc_if_params = {
 228                        .if_type = VPFE_BT656,
 229                        .hdpol = VPFE_PINPOL_POSITIVE,
 230                        .vdpol = VPFE_PINPOL_POSITIVE,
 231                },
 232                .board_info = {
 233                        I2C_BOARD_INFO("tvp5146", 0x5d),
 234                        .platform_data = &tvp5146_pdata,
 235                },
 236        }
 237};
 238
 239static struct vpfe_config vpfe_cfg = {
 240        .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
 241        .i2c_adapter_id = 1,
 242        .sub_devs = vpfe_sub_devs,
 243        .card_name = "DM355 EVM",
 244        .ccdc = "DM355 CCDC",
 245};
 246
 247/* venc standards timings */
 248static struct vpbe_enc_mode_info dm355evm_enc_preset_timing[] = {
 249        {
 250                .name           = "ntsc",
 251                .timings_type   = VPBE_ENC_STD,
 252                .std_id         = V4L2_STD_NTSC,
 253                .interlaced     = 1,
 254                .xres           = 720,
 255                .yres           = 480,
 256                .aspect         = {11, 10},
 257                .fps            = {30000, 1001},
 258                .left_margin    = 0x79,
 259                .upper_margin   = 0x10,
 260        },
 261        {
 262                .name           = "pal",
 263                .timings_type   = VPBE_ENC_STD,
 264                .std_id         = V4L2_STD_PAL,
 265                .interlaced     = 1,
 266                .xres           = 720,
 267                .yres           = 576,
 268                .aspect         = {54, 59},
 269                .fps            = {25, 1},
 270                .left_margin    = 0x7E,
 271                .upper_margin   = 0x16
 272        },
 273};
 274
 275#define VENC_STD_ALL    (V4L2_STD_NTSC | V4L2_STD_PAL)
 276
 277/*
 278 * The outputs available from VPBE + ecnoders. Keep the
 279 * the order same as that of encoders. First those from venc followed by that
 280 * from encoders. Index in the output refers to index on a particular encoder.
 281 * Driver uses this index to pass it to encoder when it supports more than
 282 * one output. Application uses index of the array to set an output.
 283 */
 284static struct vpbe_output dm355evm_vpbe_outputs[] = {
 285        {
 286                .output         = {
 287                        .index          = 0,
 288                        .name           = "Composite",
 289                        .type           = V4L2_OUTPUT_TYPE_ANALOG,
 290                        .std            = VENC_STD_ALL,
 291                        .capabilities   = V4L2_OUT_CAP_STD,
 292                },
 293                .subdev_name    = DM355_VPBE_VENC_SUBDEV_NAME,
 294                .default_mode   = "ntsc",
 295                .num_modes      = ARRAY_SIZE(dm355evm_enc_preset_timing),
 296                .modes          = dm355evm_enc_preset_timing,
 297                .if_params      = V4L2_MBUS_FMT_FIXED,
 298        },
 299};
 300
 301static struct vpbe_config dm355evm_display_cfg = {
 302        .module_name    = "dm355-vpbe-display",
 303        .i2c_adapter_id = 1,
 304        .osd            = {
 305                .module_name    = DM355_VPBE_OSD_SUBDEV_NAME,
 306        },
 307        .venc           = {
 308                .module_name    = DM355_VPBE_VENC_SUBDEV_NAME,
 309        },
 310        .num_outputs    = ARRAY_SIZE(dm355evm_vpbe_outputs),
 311        .outputs        = dm355evm_vpbe_outputs,
 312};
 313
 314static struct platform_device *davinci_evm_devices[] __initdata = {
 315        &dm355evm_dm9000,
 316        &davinci_nand_device,
 317};
 318
 319static void __init dm355_evm_map_io(void)
 320{
 321        dm355_init();
 322}
 323
 324static int dm355evm_mmc_get_cd(int module)
 325{
 326        if (!gpio_is_valid(dm355evm_mmc_gpios))
 327                return -ENXIO;
 328        /* low == card present */
 329        return !gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 1);
 330}
 331
 332static int dm355evm_mmc_get_ro(int module)
 333{
 334        if (!gpio_is_valid(dm355evm_mmc_gpios))
 335                return -ENXIO;
 336        /* high == card's write protect switch active */
 337        return gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 0);
 338}
 339
 340static struct davinci_mmc_config dm355evm_mmc_config = {
 341        .get_cd         = dm355evm_mmc_get_cd,
 342        .get_ro         = dm355evm_mmc_get_ro,
 343        .wires          = 4,
 344        .max_freq       = 50000000,
 345        .caps           = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
 346};
 347
 348/* Don't connect anything to J10 unless you're only using USB host
 349 * mode *and* have to do so with some kind of gender-bender.  If
 350 * you have proper Mini-B or Mini-A cables (or Mini-A adapters)
 351 * the ID pin won't need any help.
 352 */
 353#ifdef CONFIG_USB_MUSB_PERIPHERAL
 354#define USB_ID_VALUE    0       /* ID pulled high; *should* float */
 355#else
 356#define USB_ID_VALUE    1       /* ID pulled low */
 357#endif
 358
 359static struct spi_eeprom at25640a = {
 360        .byte_len       = SZ_64K / 8,
 361        .name           = "at25640a",
 362        .page_size      = 32,
 363        .flags          = EE_ADDR2,
 364};
 365
 366static 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
 377static __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 (IS_ERR(aemif))
 392                WARN("%s: unable to get AEMIF clock\n", __func__);
 393        else
 394                clk_prepare_enable(aemif);
 395
 396        platform_add_devices(davinci_evm_devices,
 397                             ARRAY_SIZE(davinci_evm_devices));
 398        evm_init_i2c();
 399        davinci_serial_init(dm355_serial_device);
 400
 401        /* NOTE:  NAND flash timings set by the UBL are slower than
 402         * needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
 403         * but could be 0x0400008c for about 25% faster page reads.
 404         */
 405
 406        gpio_request(2, "usb_id_toggle");
 407        gpio_direction_output(2, USB_ID_VALUE);
 408        /* irlml6401 switches over 1A in under 8 msec */
 409        davinci_setup_usb(1000, 8);
 410
 411        davinci_setup_mmc(0, &dm355evm_mmc_config);
 412        davinci_setup_mmc(1, &dm355evm_mmc_config);
 413
 414        dm355_init_video(&vpfe_cfg, &dm355evm_display_cfg);
 415
 416        dm355_init_spi0(BIT(0), dm355_evm_spi_info,
 417                        ARRAY_SIZE(dm355_evm_spi_info));
 418
 419        /* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
 420        dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN, &dm355_evm_snd_data);
 421}
 422
 423MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM")
 424        .atag_offset  = 0x100,
 425        .map_io       = dm355_evm_map_io,
 426        .init_irq     = davinci_irq_init,
 427        .init_time      = davinci_timer_init,
 428        .init_machine = dm355_evm_init,
 429        .init_late      = davinci_init_late,
 430        .dma_zone_size  = SZ_128M,
 431        .restart        = davinci_restart,
 432MACHINE_END
 433