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/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
  53 static 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
  85 static 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
  93 static 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
 105 static 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
 117 static struct davinci_i2c_platform_data i2c_pdata = {
 118         .bus_freq       = 400   /* kHz */,
 119         .bus_delay      = 0     /* usec */,
 120 };
 121
 122 static struct snd_platform_data dm355_evm_snd_data;
 123
 124 static int dm355evm_mmc_gpios = -EINVAL;
 125
 126 static 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
 140 static 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
 148 static 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
 160 static 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
 177 static 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
 184 static 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 */
 192 static 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  */
 212 static 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
 223 static 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
 243 static 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
 250 static struct platform_device *davinci_evm_devices[] __initdata = {
 251         &dm355evm_dm9000,
 252         &davinci_nand_device,
 253 };
 254
 255 static struct davinci_uart_config uart_config __initdata = {
 256         .enabled_uarts = (1 << 0),
 257 };
 258
 259 static 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
 266 static 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
 274 static 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
 282 static 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
 302 static struct spi_eeprom at25640a = {
 303         .byte_len       = SZ_64K / 8,
 304         .name           = "at25640a",
 305         .page_size      = 32,
 306         .flags          = EE_ADDR2,
 307 };
 308
 309 static 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
 320 static __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
 359 static __init void dm355_evm_irq_init(void)
 360 {
 361         davinci_irq_init();
 362 }
 363
 364 MACHINE_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,
 372 MACHINE_END