linux/arch/arm/mach-davinci/board-dm355-evm.c
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   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/module.h>
  13#include <linux/init.h>
  14#include <linux/dma-mapping.h>
  15#include <linux/platform_device.h>
  16#include <linux/mtd/mtd.h>
  17#include <linux/mtd/partitions.h>
  18#include <linux/mtd/nand.h>
  19#include <linux/i2c.h>
  20#include <linux/io.h>
  21#include <linux/gpio.h>
  22#include <linux/clk.h>
  23#include <linux/videodev2.h>
  24#include <media/tvp514x.h>
  25#include <linux/spi/spi.h>
  26#include <linux/spi/eeprom.h>
  27
  28#include <asm/setup.h>
  29#include <asm/mach-types.h>
  30#include <asm/mach/arch.h>
  31#include <asm/mach/map.h>
  32#include <asm/mach/flash.h>
  33
  34#include <mach/hardware.h>
  35#include <mach/dm355.h>
  36#include <mach/psc.h>
  37#include <mach/common.h>
  38#include <mach/i2c.h>
  39#include <mach/serial.h>
  40#include <mach/nand.h>
  41#include <mach/mmc.h>
  42
  43#define DAVINCI_ASYNC_EMIF_CONTROL_BASE         0x01e10000
  44#define DAVINCI_ASYNC_EMIF_DATA_CE0_BASE        0x02000000
  45
  46/* NOTE:  this is geared for the standard config, with a socketed
  47 * 2 GByte Micron NAND (MT29F16G08FAA) using 128KB sectors.  If you
  48 * swap chips, maybe with a different block size, partitioning may
  49 * need to be changed.
  50 */
  51#define NAND_BLOCK_SIZE         SZ_128K
  52
  53static struct mtd_partition davinci_nand_partitions[] = {
  54        {
  55                /* UBL (a few copies) plus U-Boot */
  56                .name           = "bootloader",
  57                .offset         = 0,
  58                .size           = 15 * NAND_BLOCK_SIZE,
  59                .mask_flags     = MTD_WRITEABLE, /* force read-only */
  60        }, {
  61                /* U-Boot environment */
  62                .name           = "params",
  63                .offset         = MTDPART_OFS_APPEND,
  64                .size           = 1 * NAND_BLOCK_SIZE,
  65                .mask_flags     = 0,
  66        }, {
  67                .name           = "kernel",
  68                .offset         = MTDPART_OFS_APPEND,
  69                .size           = SZ_4M,
  70                .mask_flags     = 0,
  71        }, {
  72                .name           = "filesystem1",
  73                .offset         = MTDPART_OFS_APPEND,
  74                .size           = SZ_512M,
  75                .mask_flags     = 0,
  76        }, {
  77                .name           = "filesystem2",
  78                .offset         = MTDPART_OFS_APPEND,
  79                .size           = MTDPART_SIZ_FULL,
  80                .mask_flags     = 0,
  81        }
  82        /* two blocks with bad block table (and mirror) at the end */
  83};
  84
  85static struct davinci_nand_pdata davinci_nand_data = {
  86        .mask_chipsel           = BIT(14),
  87        .parts                  = davinci_nand_partitions,
  88        .nr_parts               = ARRAY_SIZE(davinci_nand_partitions),
  89        .ecc_mode               = NAND_ECC_HW_SYNDROME,
  90        .options                = NAND_USE_FLASH_BBT,
  91};
  92
  93static struct resource davinci_nand_resources[] = {
  94        {
  95                .start          = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE,
  96                .end            = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
  97                .flags          = IORESOURCE_MEM,
  98        }, {
  99                .start          = DAVINCI_ASYNC_EMIF_CONTROL_BASE,
 100                .end            = DAVINCI_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
 101                .flags          = IORESOURCE_MEM,
 102        },
 103};
 104
 105static struct platform_device davinci_nand_device = {
 106        .name                   = "davinci_nand",
 107        .id                     = 0,
 108
 109        .num_resources          = ARRAY_SIZE(davinci_nand_resources),
 110        .resource               = davinci_nand_resources,
 111
 112        .dev                    = {
 113                .platform_data  = &davinci_nand_data,
 114        },
 115};
 116
 117static struct davinci_i2c_platform_data i2c_pdata = {
 118        .bus_freq       = 400   /* kHz */,
 119        .bus_delay      = 0     /* usec */,
 120};
 121
 122static struct snd_platform_data dm355_evm_snd_data;
 123
 124static int dm355evm_mmc_gpios = -EINVAL;
 125
 126static void dm355evm_mmcsd_gpios(unsigned gpio)
 127{
 128        gpio_request(gpio + 0, "mmc0_ro");
 129        gpio_request(gpio + 1, "mmc0_cd");
 130        gpio_request(gpio + 2, "mmc1_ro");
 131        gpio_request(gpio + 3, "mmc1_cd");
 132
 133        /* we "know" these are input-only so we don't
 134         * need to call gpio_direction_input()
 135         */
 136
 137        dm355evm_mmc_gpios = gpio;
 138}
 139
 140static struct i2c_board_info dm355evm_i2c_info[] = {
 141        {       I2C_BOARD_INFO("dm355evm_msp", 0x25),
 142                .platform_data = dm355evm_mmcsd_gpios,
 143        },
 144        /* { plus irq  }, */
 145        { I2C_BOARD_INFO("tlv320aic33", 0x1b), },
 146};
 147
 148static void __init evm_init_i2c(void)
 149{
 150        davinci_init_i2c(&i2c_pdata);
 151
 152        gpio_request(5, "dm355evm_msp");
 153        gpio_direction_input(5);
 154        dm355evm_i2c_info[0].irq = gpio_to_irq(5);
 155
 156        i2c_register_board_info(1, dm355evm_i2c_info,
 157                        ARRAY_SIZE(dm355evm_i2c_info));
 158}
 159
 160static struct resource dm355evm_dm9000_rsrc[] = {
 161        {
 162                /* addr */
 163                .start  = 0x04014000,
 164                .end    = 0x04014001,
 165                .flags  = IORESOURCE_MEM,
 166        }, {
 167                /* data */
 168                .start  = 0x04014002,
 169                .end    = 0x04014003,
 170                .flags  = IORESOURCE_MEM,
 171        }, {
 172                .flags  = IORESOURCE_IRQ
 173                        | IORESOURCE_IRQ_HIGHEDGE /* rising (active high) */,
 174        },
 175};
 176
 177static struct platform_device dm355evm_dm9000 = {
 178        .name           = "dm9000",
 179        .id             = -1,
 180        .resource       = dm355evm_dm9000_rsrc,
 181        .num_resources  = ARRAY_SIZE(dm355evm_dm9000_rsrc),
 182};
 183
 184static 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 */
 192static 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 */
 212static 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
 223static 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
 243static struct vpfe_config vpfe_cfg = {
 244        .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
 245        .sub_devs = vpfe_sub_devs,
 246        .card_name = "DM355 EVM",
 247        .ccdc = "DM355 CCDC",
 248};
 249
 250static struct platform_device *davinci_evm_devices[] __initdata = {
 251        &dm355evm_dm9000,
 252        &davinci_nand_device,
 253};
 254
 255static struct davinci_uart_config uart_config __initdata = {
 256        .enabled_uarts = (1 << 0),
 257};
 258
 259static void __init dm355_evm_map_io(void)
 260{
 261        /* setup input configuration for VPFE input devices */
 262        dm355_set_vpfe_config(&vpfe_cfg);
 263        dm355_init();
 264}
 265
 266static int dm355evm_mmc_get_cd(int module)
 267{
 268        if (!gpio_is_valid(dm355evm_mmc_gpios))
 269                return -ENXIO;
 270        /* low == card present */
 271        return !gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 1);
 272}
 273
 274static int dm355evm_mmc_get_ro(int module)
 275{
 276        if (!gpio_is_valid(dm355evm_mmc_gpios))
 277                return -ENXIO;
 278        /* high == card's write protect switch active */
 279        return gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 0);
 280}
 281
 282static struct davinci_mmc_config dm355evm_mmc_config = {
 283        .get_cd         = dm355evm_mmc_get_cd,
 284        .get_ro         = dm355evm_mmc_get_ro,
 285        .wires          = 4,
 286        .max_freq       = 50000000,
 287        .caps           = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
 288        .version        = MMC_CTLR_VERSION_1,
 289};
 290
 291/* Don't connect anything to J10 unless you're only using USB host
 292 * mode *and* have to do so with some kind of gender-bender.  If
 293 * you have proper Mini-B or Mini-A cables (or Mini-A adapters)
 294 * the ID pin won't need any help.
 295 */
 296#ifdef CONFIG_USB_MUSB_PERIPHERAL
 297#define USB_ID_VALUE    0       /* ID pulled high; *should* float */
 298#else
 299#define USB_ID_VALUE    1       /* ID pulled low */
 300#endif
 301
 302static struct spi_eeprom at25640a = {
 303        .byte_len       = SZ_64K / 8,
 304        .name           = "at25640a",
 305        .page_size      = 32,
 306        .flags          = EE_ADDR2,
 307};
 308
 309static struct spi_board_info dm355_evm_spi_info[] __initconst = {
 310        {
 311                .modalias       = "at25",
 312                .platform_data  = &at25640a,
 313                .max_speed_hz   = 10 * 1000 * 1000,     /* at 3v3 */
 314                .bus_num        = 0,
 315                .chip_select    = 0,
 316                .mode           = SPI_MODE_0,
 317        },
 318};
 319
 320static __init void dm355_evm_init(void)
 321{
 322        struct clk *aemif;
 323
 324        gpio_request(1, "dm9000");
 325        gpio_direction_input(1);
 326        dm355evm_dm9000_rsrc[2].start = gpio_to_irq(1);
 327
 328        aemif = clk_get(&dm355evm_dm9000.dev, "aemif");
 329        if (IS_ERR(aemif))
 330                WARN("%s: unable to get AEMIF clock\n", __func__);
 331        else
 332                clk_enable(aemif);
 333
 334        platform_add_devices(davinci_evm_devices,
 335                             ARRAY_SIZE(davinci_evm_devices));
 336        evm_init_i2c();
 337        davinci_serial_init(&uart_config);
 338
 339        /* NOTE:  NAND flash timings set by the UBL are slower than
 340         * needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
 341         * but could be 0x0400008c for about 25% faster page reads.
 342         */
 343
 344        gpio_request(2, "usb_id_toggle");
 345        gpio_direction_output(2, USB_ID_VALUE);
 346        /* irlml6401 switches over 1A in under 8 msec */
 347        setup_usb(500, 8);
 348
 349        davinci_setup_mmc(0, &dm355evm_mmc_config);
 350        davinci_setup_mmc(1, &dm355evm_mmc_config);
 351
 352        dm355_init_spi0(BIT(0), dm355_evm_spi_info,
 353                        ARRAY_SIZE(dm355_evm_spi_info));
 354
 355        /* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
 356        dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN, &dm355_evm_snd_data);
 357}
 358
 359static __init void dm355_evm_irq_init(void)
 360{
 361        davinci_irq_init();
 362}
 363
 364MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM")
 365        .phys_io      = IO_PHYS,
 366        .io_pg_offst  = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
 367        .boot_params  = (0x80000100),
 368        .map_io       = dm355_evm_map_io,
 369        .init_irq     = dm355_evm_irq_init,
 370        .timer        = &davinci_timer,
 371        .init_machine = dm355_evm_init,
 372MACHINE_END
 373