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 <mach/dm355.h>
  30 #include <mach/i2c.h>
  31 #include <mach/serial.h>
  32 #include <mach/nand.h>
  33 #include <mach/mmc.h>
  34 #include <mach/usb.h>
  35
  36 #define DAVINCI_ASYNC_EMIF_CONTROL_BASE         0x01e10000
  37 #define DAVINCI_ASYNC_EMIF_DATA_CE0_BASE        0x02000000
  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
  46 static 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
  78 static 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         .options                = NAND_USE_FLASH_BBT,
  84         .ecc_bits               = 4,
  85 };
  86
  87 static struct resource davinci_nand_resources[] = {
  88         {
  89                 .start          = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE,
  90                 .end            = DAVINCI_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
  91                 .flags          = IORESOURCE_MEM,
  92         }, {
  93                 .start          = DAVINCI_ASYNC_EMIF_CONTROL_BASE,
  94                 .end            = DAVINCI_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
  95                 .flags          = IORESOURCE_MEM,
  96         },
  97 };
  98
  99 static 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
 111 static 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
 118 static struct snd_platform_data dm355_evm_snd_data;
 119
 120 static int dm355evm_mmc_gpios = -EINVAL;
 121
 122 static 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
 136 static 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
 144 static 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
 156 static 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
 173 static 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
 180 static 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 */
 188 static 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  */
 208 static 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
 219 static 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
 239 static 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 static struct platform_device *davinci_evm_devices[] __initdata = {
 248         &dm355evm_dm9000,
 249         &davinci_nand_device,
 250 };
 251
 252 static struct davinci_uart_config uart_config __initdata = {
 253         .enabled_uarts = (1 << 0),
 254 };
 255
 256 static void __init dm355_evm_map_io(void)
 257 {
 258         /* setup input configuration for VPFE input devices */
 259         dm355_set_vpfe_config(&vpfe_cfg);
 260         dm355_init();
 261 }
 262
 263 static int dm355evm_mmc_get_cd(int module)
 264 {
 265         if (!gpio_is_valid(dm355evm_mmc_gpios))
 266                 return -ENXIO;
 267         /* low == card present */
 268         return !gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 1);
 269 }
 270
 271 static int dm355evm_mmc_get_ro(int module)
 272 {
 273         if (!gpio_is_valid(dm355evm_mmc_gpios))
 274                 return -ENXIO;
 275         /* high == card's write protect switch active */
 276         return gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 0);
 277 }
 278
 279 static struct davinci_mmc_config dm355evm_mmc_config = {
 280         .get_cd         = dm355evm_mmc_get_cd,
 281         .get_ro         = dm355evm_mmc_get_ro,
 282         .wires          = 4,
 283         .max_freq       = 50000000,
 284         .caps           = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
 285         .version        = MMC_CTLR_VERSION_1,
 286 };
 287
 288 /* Don't connect anything to J10 unless you're only using USB host
 289  * mode *and* have to do so with some kind of gender-bender.  If
 290  * you have proper Mini-B or Mini-A cables (or Mini-A adapters)
 291  * the ID pin won't need any help.
 292  */
 293 #ifdef CONFIG_USB_MUSB_PERIPHERAL
 294 #define USB_ID_VALUE    0       /* ID pulled high; *should* float */
 295 #else
 296 #define USB_ID_VALUE    1       /* ID pulled low */
 297 #endif
 298
 299 static struct spi_eeprom at25640a = {
 300         .byte_len       = SZ_64K / 8,
 301         .name           = "at25640a",
 302         .page_size      = 32,
 303         .flags          = EE_ADDR2,
 304 };
 305
 306 static struct spi_board_info dm355_evm_spi_info[] __initconst = {
 307         {
 308                 .modalias       = "at25",
 309                 .platform_data  = &at25640a,
 310                 .max_speed_hz   = 10 * 1000 * 1000,     /* at 3v3 */
 311                 .bus_num        = 0,
 312                 .chip_select    = 0,
 313                 .mode           = SPI_MODE_0,
 314         },
 315 };
 316
 317 static __init void dm355_evm_init(void)
 318 {
 319         struct clk *aemif;
 320
 321         gpio_request(1, "dm9000");
 322         gpio_direction_input(1);
 323         dm355evm_dm9000_rsrc[2].start = gpio_to_irq(1);
 324
 325         aemif = clk_get(&dm355evm_dm9000.dev, "aemif");
 326         if (IS_ERR(aemif))
 327                 WARN("%s: unable to get AEMIF clock\n", __func__);
 328         else
 329                 clk_enable(aemif);
 330
 331         platform_add_devices(davinci_evm_devices,
 332                              ARRAY_SIZE(davinci_evm_devices));
 333         evm_init_i2c();
 334         davinci_serial_init(&uart_config);
 335
 336         /* NOTE:  NAND flash timings set by the UBL are slower than
 337          * needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
 338          * but could be 0x0400008c for about 25% faster page reads.
 339          */
 340
 341         gpio_request(2, "usb_id_toggle");
 342         gpio_direction_output(2, USB_ID_VALUE);
 343         /* irlml6401 switches over 1A in under 8 msec */
 344         davinci_setup_usb(1000, 8);
 345
 346         davinci_setup_mmc(0, &dm355evm_mmc_config);
 347         davinci_setup_mmc(1, &dm355evm_mmc_config);
 348
 349         dm355_init_spi0(BIT(0), dm355_evm_spi_info,
 350                         ARRAY_SIZE(dm355_evm_spi_info));
 351
 352         /* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
 353         dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN, &dm355_evm_snd_data);
 354 }
 355
 356 static __init void dm355_evm_irq_init(void)
 357 {
 358         davinci_irq_init();
 359 }
 360
 361 MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM")
 362         .phys_io      = IO_PHYS,
 363         .io_pg_offst  = (__IO_ADDRESS(IO_PHYS) >> 18) & 0xfffc,
 364         .boot_params  = (0x80000100),
 365         .map_io       = dm355_evm_map_io,
 366         .init_irq     = dm355_evm_irq_init,
 367         .timer        = &davinci_timer,
 368         .init_machine = dm355_evm_init,
 369 MACHINE_END