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
  26#include <asm/mach-types.h>
  27#include <asm/mach/arch.h>
  28
  29#include <linux/platform_data/i2c-davinci.h>
  30#include <mach/serial.h>
  31#include <linux/platform_data/mtd-davinci.h>
  32#include <linux/platform_data/mmc-davinci.h>
  33#include <linux/platform_data/usb-davinci.h>
  34
  35#include "davinci.h"
  36
  37/* NOTE:  this is geared for the standard config, with a socketed
  38 * 2 GByte Micron NAND (MT29F16G08FAA) using 128KB sectors.  If you
  39 * swap chips, maybe with a different block size, partitioning may
  40 * need to be changed.
  41 */
  42#define NAND_BLOCK_SIZE         SZ_128K
  43
  44static struct mtd_partition davinci_nand_partitions[] = {
  45        {
  46                /* UBL (a few copies) plus U-Boot */
  47                .name           = "bootloader",
  48                .offset         = 0,
  49                .size           = 15 * NAND_BLOCK_SIZE,
  50                .mask_flags     = MTD_WRITEABLE, /* force read-only */
  51        }, {
  52                /* U-Boot environment */
  53                .name           = "params",
  54                .offset         = MTDPART_OFS_APPEND,
  55                .size           = 1 * NAND_BLOCK_SIZE,
  56                .mask_flags     = 0,
  57        }, {
  58                .name           = "kernel",
  59                .offset         = MTDPART_OFS_APPEND,
  60                .size           = SZ_4M,
  61                .mask_flags     = 0,
  62        }, {
  63                .name           = "filesystem1",
  64                .offset         = MTDPART_OFS_APPEND,
  65                .size           = SZ_512M,
  66                .mask_flags     = 0,
  67        }, {
  68                .name           = "filesystem2",
  69                .offset         = MTDPART_OFS_APPEND,
  70                .size           = MTDPART_SIZ_FULL,
  71                .mask_flags     = 0,
  72        }
  73        /* two blocks with bad block table (and mirror) at the end */
  74};
  75
  76static struct davinci_nand_pdata davinci_nand_data = {
  77        .mask_chipsel           = BIT(14),
  78        .parts                  = davinci_nand_partitions,
  79        .nr_parts               = ARRAY_SIZE(davinci_nand_partitions),
  80        .ecc_mode               = NAND_ECC_HW,
  81        .bbt_options            = NAND_BBT_USE_FLASH,
  82        .ecc_bits               = 4,
  83};
  84
  85static struct resource davinci_nand_resources[] = {
  86        {
  87                .start          = DM355_ASYNC_EMIF_DATA_CE0_BASE,
  88                .end            = DM355_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
  89                .flags          = IORESOURCE_MEM,
  90        }, {
  91                .start          = DM355_ASYNC_EMIF_CONTROL_BASE,
  92                .end            = DM355_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
  93                .flags          = IORESOURCE_MEM,
  94        },
  95};
  96
  97static struct platform_device davinci_nand_device = {
  98        .name                   = "davinci_nand",
  99        .id                     = 0,
 100
 101        .num_resources          = ARRAY_SIZE(davinci_nand_resources),
 102        .resource               = davinci_nand_resources,
 103
 104        .dev                    = {
 105                .platform_data  = &davinci_nand_data,
 106        },
 107};
 108
 109static struct davinci_i2c_platform_data i2c_pdata = {
 110        .bus_freq       = 400   /* kHz */,
 111        .bus_delay      = 0     /* usec */,
 112        .sda_pin        = 15,
 113        .scl_pin        = 14,
 114};
 115
 116static struct snd_platform_data dm355_evm_snd_data;
 117
 118static int dm355evm_mmc_gpios = -EINVAL;
 119
 120static void dm355evm_mmcsd_gpios(unsigned gpio)
 121{
 122        gpio_request(gpio + 0, "mmc0_ro");
 123        gpio_request(gpio + 1, "mmc0_cd");
 124        gpio_request(gpio + 2, "mmc1_ro");
 125        gpio_request(gpio + 3, "mmc1_cd");
 126
 127        /* we "know" these are input-only so we don't
 128         * need to call gpio_direction_input()
 129         */
 130
 131        dm355evm_mmc_gpios = gpio;
 132}
 133
 134static struct i2c_board_info dm355evm_i2c_info[] = {
 135        {       I2C_BOARD_INFO("dm355evm_msp", 0x25),
 136                .platform_data = dm355evm_mmcsd_gpios,
 137        },
 138        /* { plus irq  }, */
 139        { I2C_BOARD_INFO("tlv320aic33", 0x1b), },
 140};
 141
 142static void __init evm_init_i2c(void)
 143{
 144        davinci_init_i2c(&i2c_pdata);
 145
 146        gpio_request(5, "dm355evm_msp");
 147        gpio_direction_input(5);
 148        dm355evm_i2c_info[0].irq = gpio_to_irq(5);
 149
 150        i2c_register_board_info(1, dm355evm_i2c_info,
 151                        ARRAY_SIZE(dm355evm_i2c_info));
 152}
 153
 154static struct resource dm355evm_dm9000_rsrc[] = {
 155        {
 156                /* addr */
 157                .start  = 0x04014000,
 158                .end    = 0x04014001,
 159                .flags  = IORESOURCE_MEM,
 160        }, {
 161                /* data */
 162                .start  = 0x04014002,
 163                .end    = 0x04014003,
 164                .flags  = IORESOURCE_MEM,
 165        }, {
 166                .flags  = IORESOURCE_IRQ
 167                        | IORESOURCE_IRQ_HIGHEDGE /* rising (active high) */,
 168        },
 169};
 170
 171static struct platform_device dm355evm_dm9000 = {
 172        .name           = "dm9000",
 173        .id             = -1,
 174        .resource       = dm355evm_dm9000_rsrc,
 175        .num_resources  = ARRAY_SIZE(dm355evm_dm9000_rsrc),
 176};
 177
 178static struct tvp514x_platform_data tvp5146_pdata = {
 179        .clk_polarity = 0,
 180        .hs_polarity = 1,
 181        .vs_polarity = 1
 182};
 183
 184#define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
 185/* Inputs available at the TVP5146 */
 186static struct v4l2_input tvp5146_inputs[] = {
 187        {
 188                .index = 0,
 189                .name = "Composite",
 190                .type = V4L2_INPUT_TYPE_CAMERA,
 191                .std = TVP514X_STD_ALL,
 192        },
 193        {
 194                .index = 1,
 195                .name = "S-Video",
 196                .type = V4L2_INPUT_TYPE_CAMERA,
 197                .std = TVP514X_STD_ALL,
 198        },
 199};
 200
 201/*
 202 * this is the route info for connecting each input to decoder
 203 * ouput that goes to vpfe. There is a one to one correspondence
 204 * with tvp5146_inputs
 205 */
 206static struct vpfe_route tvp5146_routes[] = {
 207        {
 208                .input = INPUT_CVBS_VI2B,
 209                .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 210        },
 211        {
 212                .input = INPUT_SVIDEO_VI2C_VI1C,
 213                .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 214        },
 215};
 216
 217static struct vpfe_subdev_info vpfe_sub_devs[] = {
 218        {
 219                .name = "tvp5146",
 220                .grp_id = 0,
 221                .num_inputs = ARRAY_SIZE(tvp5146_inputs),
 222                .inputs = tvp5146_inputs,
 223                .routes = tvp5146_routes,
 224                .can_route = 1,
 225                .ccdc_if_params = {
 226                        .if_type = VPFE_BT656,
 227                        .hdpol = VPFE_PINPOL_POSITIVE,
 228                        .vdpol = VPFE_PINPOL_POSITIVE,
 229                },
 230                .board_info = {
 231                        I2C_BOARD_INFO("tvp5146", 0x5d),
 232                        .platform_data = &tvp5146_pdata,
 233                },
 234        }
 235};
 236
 237static struct vpfe_config vpfe_cfg = {
 238        .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
 239        .i2c_adapter_id = 1,
 240        .sub_devs = vpfe_sub_devs,
 241        .card_name = "DM355 EVM",
 242        .ccdc = "DM355 CCDC",
 243};
 244
 245/* venc standards timings */
 246static struct vpbe_enc_mode_info dm355evm_enc_preset_timing[] = {
 247        {
 248                .name           = "ntsc",
 249                .timings_type   = VPBE_ENC_STD,
 250                .std_id         = V4L2_STD_NTSC,
 251                .interlaced     = 1,
 252                .xres           = 720,
 253                .yres           = 480,
 254                .aspect         = {11, 10},
 255                .fps            = {30000, 1001},
 256                .left_margin    = 0x79,
 257                .upper_margin   = 0x10,
 258        },
 259        {
 260                .name           = "pal",
 261                .timings_type   = VPBE_ENC_STD,
 262                .std_id         = V4L2_STD_PAL,
 263                .interlaced     = 1,
 264                .xres           = 720,
 265                .yres           = 576,
 266                .aspect         = {54, 59},
 267                .fps            = {25, 1},
 268                .left_margin    = 0x7E,
 269                .upper_margin   = 0x16
 270        },
 271};
 272
 273#define VENC_STD_ALL    (V4L2_STD_NTSC | V4L2_STD_PAL)
 274
 275/*
 276 * The outputs available from VPBE + ecnoders. Keep the
 277 * the order same as that of encoders. First those from venc followed by that
 278 * from encoders. Index in the output refers to index on a particular encoder.
 279 * Driver uses this index to pass it to encoder when it supports more than
 280 * one output. Application uses index of the array to set an output.
 281 */
 282static struct vpbe_output dm355evm_vpbe_outputs[] = {
 283        {
 284                .output         = {
 285                        .index          = 0,
 286                        .name           = "Composite",
 287                        .type           = V4L2_OUTPUT_TYPE_ANALOG,
 288                        .std            = VENC_STD_ALL,
 289                        .capabilities   = V4L2_OUT_CAP_STD,
 290                },
 291                .subdev_name    = DM355_VPBE_VENC_SUBDEV_NAME,
 292                .default_mode   = "ntsc",
 293                .num_modes      = ARRAY_SIZE(dm355evm_enc_preset_timing),
 294                .modes          = dm355evm_enc_preset_timing,
 295                .if_params      = V4L2_MBUS_FMT_FIXED,
 296        },
 297};
 298
 299static struct vpbe_config dm355evm_display_cfg = {
 300        .module_name    = "dm355-vpbe-display",
 301        .i2c_adapter_id = 1,
 302        .osd            = {
 303                .module_name    = DM355_VPBE_OSD_SUBDEV_NAME,
 304        },
 305        .venc           = {
 306                .module_name    = DM355_VPBE_VENC_SUBDEV_NAME,
 307        },
 308        .num_outputs    = ARRAY_SIZE(dm355evm_vpbe_outputs),
 309        .outputs        = dm355evm_vpbe_outputs,
 310};
 311
 312static struct platform_device *davinci_evm_devices[] __initdata = {
 313        &dm355evm_dm9000,
 314        &davinci_nand_device,
 315};
 316
 317static struct davinci_uart_config uart_config __initdata = {
 318        .enabled_uarts = (1 << 0),
 319};
 320
 321static void __init dm355_evm_map_io(void)
 322{
 323        dm355_init();
 324}
 325
 326static int dm355evm_mmc_get_cd(int module)
 327{
 328        if (!gpio_is_valid(dm355evm_mmc_gpios))
 329                return -ENXIO;
 330        /* low == card present */
 331        return !gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 1);
 332}
 333
 334static int dm355evm_mmc_get_ro(int module)
 335{
 336        if (!gpio_is_valid(dm355evm_mmc_gpios))
 337                return -ENXIO;
 338        /* high == card's write protect switch active */
 339        return gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 0);
 340}
 341
 342static struct davinci_mmc_config dm355evm_mmc_config = {
 343        .get_cd         = dm355evm_mmc_get_cd,
 344        .get_ro         = dm355evm_mmc_get_ro,
 345        .wires          = 4,
 346        .max_freq       = 50000000,
 347        .caps           = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
 348};
 349
 350/* Don't connect anything to J10 unless you're only using USB host
 351 * mode *and* have to do so with some kind of gender-bender.  If
 352 * you have proper Mini-B or Mini-A cables (or Mini-A adapters)
 353 * the ID pin won't need any help.
 354 */
 355#ifdef CONFIG_USB_MUSB_PERIPHERAL
 356#define USB_ID_VALUE    0       /* ID pulled high; *should* float */
 357#else
 358#define USB_ID_VALUE    1       /* ID pulled low */
 359#endif
 360
 361static struct spi_eeprom at25640a = {
 362        .byte_len       = SZ_64K / 8,
 363        .name           = "at25640a",
 364        .page_size      = 32,
 365        .flags          = EE_ADDR2,
 366};
 367
 368static struct spi_board_info dm355_evm_spi_info[] __initconst = {
 369        {
 370                .modalias       = "at25",
 371                .platform_data  = &at25640a,
 372                .max_speed_hz   = 10 * 1000 * 1000,     /* at 3v3 */
 373                .bus_num        = 0,
 374                .chip_select    = 0,
 375                .mode           = SPI_MODE_0,
 376        },
 377};
 378
 379static __init void dm355_evm_init(void)
 380{
 381        struct clk *aemif;
 382
 383        gpio_request(1, "dm9000");
 384        gpio_direction_input(1);
 385        dm355evm_dm9000_rsrc[2].start = gpio_to_irq(1);
 386
 387        aemif = clk_get(&dm355evm_dm9000.dev, "aemif");
 388        if (IS_ERR(aemif))
 389                WARN("%s: unable to get AEMIF clock\n", __func__);
 390        else
 391                clk_prepare_enable(aemif);
 392
 393        platform_add_devices(davinci_evm_devices,
 394                             ARRAY_SIZE(davinci_evm_devices));
 395        evm_init_i2c();
 396        davinci_serial_init(&uart_config);
 397
 398        /* NOTE:  NAND flash timings set by the UBL are slower than
 399         * needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
 400         * but could be 0x0400008c for about 25% faster page reads.
 401         */
 402
 403        gpio_request(2, "usb_id_toggle");
 404        gpio_direction_output(2, USB_ID_VALUE);
 405        /* irlml6401 switches over 1A in under 8 msec */
 406        davinci_setup_usb(1000, 8);
 407
 408        davinci_setup_mmc(0, &dm355evm_mmc_config);
 409        davinci_setup_mmc(1, &dm355evm_mmc_config);
 410
 411        dm355_init_video(&vpfe_cfg, &dm355evm_display_cfg);
 412
 413        dm355_init_spi0(BIT(0), dm355_evm_spi_info,
 414                        ARRAY_SIZE(dm355_evm_spi_info));
 415
 416        /* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
 417        dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN, &dm355_evm_snd_data);
 418}
 419
 420MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM")
 421        .atag_offset  = 0x100,
 422        .map_io       = dm355_evm_map_io,
 423        .init_irq     = davinci_irq_init,
 424        .init_time      = davinci_timer_init,
 425        .init_machine = dm355_evm_init,
 426        .init_late      = davinci_init_late,
 427        .dma_zone_size  = SZ_128M,
 428        .restart        = davinci_restart,
 429MACHINE_END
 430