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 /* NOTE:  this is geared for the standard config, with a socketed
  37  * 2 GByte Micron NAND (MT29F16G08FAA) using 128KB sectors.  If you
  38  * swap chips, maybe with a different block size, partitioning may
  39  * need to be changed.
  40  */
  41 #define NAND_BLOCK_SIZE         SZ_128K
  42
  43 static struct mtd_partition davinci_nand_partitions[] = {
  44         {
  45                 /* UBL (a few copies) plus U-Boot */
  46                 .name           = "bootloader",
  47                 .offset         = 0,
  48                 .size           = 15 * NAND_BLOCK_SIZE,
  49                 .mask_flags     = MTD_WRITEABLE, /* force read-only */
  50         }, {
  51                 /* U-Boot environment */
  52                 .name           = "params",
  53                 .offset         = MTDPART_OFS_APPEND,
  54                 .size           = 1 * NAND_BLOCK_SIZE,
  55                 .mask_flags     = 0,
  56         }, {
  57                 .name           = "kernel",
  58                 .offset         = MTDPART_OFS_APPEND,
  59                 .size           = SZ_4M,
  60                 .mask_flags     = 0,
  61         }, {
  62                 .name           = "filesystem1",
  63                 .offset         = MTDPART_OFS_APPEND,
  64                 .size           = SZ_512M,
  65                 .mask_flags     = 0,
  66         }, {
  67                 .name           = "filesystem2",
  68                 .offset         = MTDPART_OFS_APPEND,
  69                 .size           = MTDPART_SIZ_FULL,
  70                 .mask_flags     = 0,
  71         }
  72         /* two blocks with bad block table (and mirror) at the end */
  73 };
  74
  75 static struct davinci_nand_pdata davinci_nand_data = {
  76         .mask_chipsel           = BIT(14),
  77         .parts                  = davinci_nand_partitions,
  78         .nr_parts               = ARRAY_SIZE(davinci_nand_partitions),
  79         .ecc_mode               = NAND_ECC_HW,
  80         .options                = NAND_USE_FLASH_BBT,
  81         .ecc_bits               = 4,
  82 };
  83
  84 static struct resource davinci_nand_resources[] = {
  85         {
  86                 .start          = DM355_ASYNC_EMIF_DATA_CE0_BASE,
  87                 .end            = DM355_ASYNC_EMIF_DATA_CE0_BASE + SZ_32M - 1,
  88                 .flags          = IORESOURCE_MEM,
  89         }, {
  90                 .start          = DM355_ASYNC_EMIF_CONTROL_BASE,
  91                 .end            = DM355_ASYNC_EMIF_CONTROL_BASE + SZ_4K - 1,
  92                 .flags          = IORESOURCE_MEM,
  93         },
  94 };
  95
  96 static struct platform_device davinci_nand_device = {
  97         .name                   = "davinci_nand",
  98         .id                     = 0,
  99
 100         .num_resources          = ARRAY_SIZE(davinci_nand_resources),
 101         .resource               = davinci_nand_resources,
 102
 103         .dev                    = {
 104                 .platform_data  = &davinci_nand_data,
 105         },
 106 };
 107
 108 static struct davinci_i2c_platform_data i2c_pdata = {
 109         .bus_freq       = 400   /* kHz */,
 110         .bus_delay      = 0     /* usec */,
 111         .sda_pin        = 15,
 112         .scl_pin        = 14,
 113 };
 114
 115 static struct snd_platform_data dm355_evm_snd_data;
 116
 117 static int dm355evm_mmc_gpios = -EINVAL;
 118
 119 static void dm355evm_mmcsd_gpios(unsigned gpio)
 120 {
 121         gpio_request(gpio + 0, "mmc0_ro");
 122         gpio_request(gpio + 1, "mmc0_cd");
 123         gpio_request(gpio + 2, "mmc1_ro");
 124         gpio_request(gpio + 3, "mmc1_cd");
 125
 126         /* we "know" these are input-only so we don't
 127          * need to call gpio_direction_input()
 128          */
 129
 130         dm355evm_mmc_gpios = gpio;
 131 }
 132
 133 static struct i2c_board_info dm355evm_i2c_info[] = {
 134         {       I2C_BOARD_INFO("dm355evm_msp", 0x25),
 135                 .platform_data = dm355evm_mmcsd_gpios,
 136         },
 137         /* { plus irq  }, */
 138         { I2C_BOARD_INFO("tlv320aic33", 0x1b), },
 139 };
 140
 141 static void __init evm_init_i2c(void)
 142 {
 143         davinci_init_i2c(&i2c_pdata);
 144
 145         gpio_request(5, "dm355evm_msp");
 146         gpio_direction_input(5);
 147         dm355evm_i2c_info[0].irq = gpio_to_irq(5);
 148
 149         i2c_register_board_info(1, dm355evm_i2c_info,
 150                         ARRAY_SIZE(dm355evm_i2c_info));
 151 }
 152
 153 static struct resource dm355evm_dm9000_rsrc[] = {
 154         {
 155                 /* addr */
 156                 .start  = 0x04014000,
 157                 .end    = 0x04014001,
 158                 .flags  = IORESOURCE_MEM,
 159         }, {
 160                 /* data */
 161                 .start  = 0x04014002,
 162                 .end    = 0x04014003,
 163                 .flags  = IORESOURCE_MEM,
 164         }, {
 165                 .flags  = IORESOURCE_IRQ
 166                         | IORESOURCE_IRQ_HIGHEDGE /* rising (active high) */,
 167         },
 168 };
 169
 170 static struct platform_device dm355evm_dm9000 = {
 171         .name           = "dm9000",
 172         .id             = -1,
 173         .resource       = dm355evm_dm9000_rsrc,
 174         .num_resources  = ARRAY_SIZE(dm355evm_dm9000_rsrc),
 175 };
 176
 177 static struct tvp514x_platform_data tvp5146_pdata = {
 178         .clk_polarity = 0,
 179         .hs_polarity = 1,
 180         .vs_polarity = 1
 181 };
 182
 183 #define TVP514X_STD_ALL (V4L2_STD_NTSC | V4L2_STD_PAL)
 184 /* Inputs available at the TVP5146 */
 185 static struct v4l2_input tvp5146_inputs[] = {
 186         {
 187                 .index = 0,
 188                 .name = "Composite",
 189                 .type = V4L2_INPUT_TYPE_CAMERA,
 190                 .std = TVP514X_STD_ALL,
 191         },
 192         {
 193                 .index = 1,
 194                 .name = "S-Video",
 195                 .type = V4L2_INPUT_TYPE_CAMERA,
 196                 .std = TVP514X_STD_ALL,
 197         },
 198 };
 199
 200 /*
 201  * this is the route info for connecting each input to decoder
 202  * ouput that goes to vpfe. There is a one to one correspondence
 203  * with tvp5146_inputs
 204  */
 205 static struct vpfe_route tvp5146_routes[] = {
 206         {
 207                 .input = INPUT_CVBS_VI2B,
 208                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 209         },
 210         {
 211                 .input = INPUT_SVIDEO_VI2C_VI1C,
 212                 .output = OUTPUT_10BIT_422_EMBEDDED_SYNC,
 213         },
 214 };
 215
 216 static struct vpfe_subdev_info vpfe_sub_devs[] = {
 217         {
 218                 .name = "tvp5146",
 219                 .grp_id = 0,
 220                 .num_inputs = ARRAY_SIZE(tvp5146_inputs),
 221                 .inputs = tvp5146_inputs,
 222                 .routes = tvp5146_routes,
 223                 .can_route = 1,
 224                 .ccdc_if_params = {
 225                         .if_type = VPFE_BT656,
 226                         .hdpol = VPFE_PINPOL_POSITIVE,
 227                         .vdpol = VPFE_PINPOL_POSITIVE,
 228                 },
 229                 .board_info = {
 230                         I2C_BOARD_INFO("tvp5146", 0x5d),
 231                         .platform_data = &tvp5146_pdata,
 232                 },
 233         }
 234 };
 235
 236 static struct vpfe_config vpfe_cfg = {
 237         .num_subdevs = ARRAY_SIZE(vpfe_sub_devs),
 238         .i2c_adapter_id = 1,
 239         .sub_devs = vpfe_sub_devs,
 240         .card_name = "DM355 EVM",
 241         .ccdc = "DM355 CCDC",
 242 };
 243
 244 static struct platform_device *davinci_evm_devices[] __initdata = {
 245         &dm355evm_dm9000,
 246         &davinci_nand_device,
 247 };
 248
 249 static struct davinci_uart_config uart_config __initdata = {
 250         .enabled_uarts = (1 << 0),
 251 };
 252
 253 static void __init dm355_evm_map_io(void)
 254 {
 255         /* setup input configuration for VPFE input devices */
 256         dm355_set_vpfe_config(&vpfe_cfg);
 257         dm355_init();
 258 }
 259
 260 static int dm355evm_mmc_get_cd(int module)
 261 {
 262         if (!gpio_is_valid(dm355evm_mmc_gpios))
 263                 return -ENXIO;
 264         /* low == card present */
 265         return !gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 1);
 266 }
 267
 268 static int dm355evm_mmc_get_ro(int module)
 269 {
 270         if (!gpio_is_valid(dm355evm_mmc_gpios))
 271                 return -ENXIO;
 272         /* high == card's write protect switch active */
 273         return gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 0);
 274 }
 275
 276 static struct davinci_mmc_config dm355evm_mmc_config = {
 277         .get_cd         = dm355evm_mmc_get_cd,
 278         .get_ro         = dm355evm_mmc_get_ro,
 279         .wires          = 4,
 280         .max_freq       = 50000000,
 281         .caps           = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
 282         .version        = MMC_CTLR_VERSION_1,
 283 };
 284
 285 /* Don't connect anything to J10 unless you're only using USB host
 286  * mode *and* have to do so with some kind of gender-bender.  If
 287  * you have proper Mini-B or Mini-A cables (or Mini-A adapters)
 288  * the ID pin won't need any help.
 289  */
 290 #ifdef CONFIG_USB_MUSB_PERIPHERAL
 291 #define USB_ID_VALUE    0       /* ID pulled high; *should* float */
 292 #else
 293 #define USB_ID_VALUE    1       /* ID pulled low */
 294 #endif
 295
 296 static struct spi_eeprom at25640a = {
 297         .byte_len       = SZ_64K / 8,
 298         .name           = "at25640a",
 299         .page_size      = 32,
 300         .flags          = EE_ADDR2,
 301 };
 302
 303 static struct spi_board_info dm355_evm_spi_info[] __initconst = {
 304         {
 305                 .modalias       = "at25",
 306                 .platform_data  = &at25640a,
 307                 .max_speed_hz   = 10 * 1000 * 1000,     /* at 3v3 */
 308                 .bus_num        = 0,
 309                 .chip_select    = 0,
 310                 .mode           = SPI_MODE_0,
 311         },
 312 };
 313
 314 static __init void dm355_evm_init(void)
 315 {
 316         struct clk *aemif;
 317
 318         gpio_request(1, "dm9000");
 319         gpio_direction_input(1);
 320         dm355evm_dm9000_rsrc[2].start = gpio_to_irq(1);
 321
 322         aemif = clk_get(&dm355evm_dm9000.dev, "aemif");
 323         if (IS_ERR(aemif))
 324                 WARN("%s: unable to get AEMIF clock\n", __func__);
 325         else
 326                 clk_enable(aemif);
 327
 328         platform_add_devices(davinci_evm_devices,
 329                              ARRAY_SIZE(davinci_evm_devices));
 330         evm_init_i2c();
 331         davinci_serial_init(&uart_config);
 332
 333         /* NOTE:  NAND flash timings set by the UBL are slower than
 334          * needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
 335          * but could be 0x0400008c for about 25% faster page reads.
 336          */
 337
 338         gpio_request(2, "usb_id_toggle");
 339         gpio_direction_output(2, USB_ID_VALUE);
 340         /* irlml6401 switches over 1A in under 8 msec */
 341         davinci_setup_usb(1000, 8);
 342
 343         davinci_setup_mmc(0, &dm355evm_mmc_config);
 344         davinci_setup_mmc(1, &dm355evm_mmc_config);
 345
 346         dm355_init_spi0(BIT(0), dm355_evm_spi_info,
 347                         ARRAY_SIZE(dm355_evm_spi_info));
 348
 349         /* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
 350         dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN, &dm355_evm_snd_data);
 351 }
 352
 353 MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM")
 354         .boot_params  = (0x80000100),
 355         .map_io       = dm355_evm_map_io,
 356         .init_irq     = davinci_irq_init,
 357         .timer        = &davinci_timer,
 358         .init_machine = dm355_evm_init,
 359 MACHINE_END