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/i2c.h>
  30 #include <mach/serial.h>
  31 #include <mach/nand.h>
  32 #include <mach/mmc.h>
  33 #include <mach/usb.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
  44 static 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
  76 static 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
  85 static 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
  97 static 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
 109 static 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
 116 static struct snd_platform_data dm355_evm_snd_data;
 117
 118 static int dm355evm_mmc_gpios = -EINVAL;
 119
 120 static 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
 134 static 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
 142 static 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
 154 static 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
 171 static 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
 178 static 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 */
 186 static 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  */
 206 static 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
 217 static 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
 237 static 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 static struct platform_device *davinci_evm_devices[] __initdata = {
 246         &dm355evm_dm9000,
 247         &davinci_nand_device,
 248 };
 249
 250 static struct davinci_uart_config uart_config __initdata = {
 251         .enabled_uarts = (1 << 0),
 252 };
 253
 254 static void __init dm355_evm_map_io(void)
 255 {
 256         /* setup input configuration for VPFE input devices */
 257         dm355_set_vpfe_config(&vpfe_cfg);
 258         dm355_init();
 259 }
 260
 261 static int dm355evm_mmc_get_cd(int module)
 262 {
 263         if (!gpio_is_valid(dm355evm_mmc_gpios))
 264                 return -ENXIO;
 265         /* low == card present */
 266         return !gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 1);
 267 }
 268
 269 static int dm355evm_mmc_get_ro(int module)
 270 {
 271         if (!gpio_is_valid(dm355evm_mmc_gpios))
 272                 return -ENXIO;
 273         /* high == card's write protect switch active */
 274         return gpio_get_value_cansleep(dm355evm_mmc_gpios + 2 * module + 0);
 275 }
 276
 277 static struct davinci_mmc_config dm355evm_mmc_config = {
 278         .get_cd         = dm355evm_mmc_get_cd,
 279         .get_ro         = dm355evm_mmc_get_ro,
 280         .wires          = 4,
 281         .max_freq       = 50000000,
 282         .caps           = MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
 283         .version        = MMC_CTLR_VERSION_1,
 284 };
 285
 286 /* Don't connect anything to J10 unless you're only using USB host
 287  * mode *and* have to do so with some kind of gender-bender.  If
 288  * you have proper Mini-B or Mini-A cables (or Mini-A adapters)
 289  * the ID pin won't need any help.
 290  */
 291 #ifdef CONFIG_USB_MUSB_PERIPHERAL
 292 #define USB_ID_VALUE    0       /* ID pulled high; *should* float */
 293 #else
 294 #define USB_ID_VALUE    1       /* ID pulled low */
 295 #endif
 296
 297 static struct spi_eeprom at25640a = {
 298         .byte_len       = SZ_64K / 8,
 299         .name           = "at25640a",
 300         .page_size      = 32,
 301         .flags          = EE_ADDR2,
 302 };
 303
 304 static struct spi_board_info dm355_evm_spi_info[] __initconst = {
 305         {
 306                 .modalias       = "at25",
 307                 .platform_data  = &at25640a,
 308                 .max_speed_hz   = 10 * 1000 * 1000,     /* at 3v3 */
 309                 .bus_num        = 0,
 310                 .chip_select    = 0,
 311                 .mode           = SPI_MODE_0,
 312         },
 313 };
 314
 315 static __init void dm355_evm_init(void)
 316 {
 317         struct clk *aemif;
 318
 319         gpio_request(1, "dm9000");
 320         gpio_direction_input(1);
 321         dm355evm_dm9000_rsrc[2].start = gpio_to_irq(1);
 322
 323         aemif = clk_get(&dm355evm_dm9000.dev, "aemif");
 324         if (IS_ERR(aemif))
 325                 WARN("%s: unable to get AEMIF clock\n", __func__);
 326         else
 327                 clk_enable(aemif);
 328
 329         platform_add_devices(davinci_evm_devices,
 330                              ARRAY_SIZE(davinci_evm_devices));
 331         evm_init_i2c();
 332         davinci_serial_init(&uart_config);
 333
 334         /* NOTE:  NAND flash timings set by the UBL are slower than
 335          * needed by MT29F16G08FAA chips ... EMIF.A1CR is 0x40400204
 336          * but could be 0x0400008c for about 25% faster page reads.
 337          */
 338
 339         gpio_request(2, "usb_id_toggle");
 340         gpio_direction_output(2, USB_ID_VALUE);
 341         /* irlml6401 switches over 1A in under 8 msec */
 342         davinci_setup_usb(1000, 8);
 343
 344         davinci_setup_mmc(0, &dm355evm_mmc_config);
 345         davinci_setup_mmc(1, &dm355evm_mmc_config);
 346
 347         dm355_init_spi0(BIT(0), dm355_evm_spi_info,
 348                         ARRAY_SIZE(dm355_evm_spi_info));
 349
 350         /* DM335 EVM uses ASP1; line-out is a stereo mini-jack */
 351         dm355_init_asp1(ASP1_TX_EVT_EN | ASP1_RX_EVT_EN, &dm355_evm_snd_data);
 352 }
 353
 354 MACHINE_START(DAVINCI_DM355_EVM, "DaVinci DM355 EVM")
 355         .atag_offset  = 0x100,
 356         .map_io       = dm355_evm_map_io,
 357         .init_irq     = davinci_irq_init,
 358         .timer        = &davinci_timer,
 359         .init_machine = dm355_evm_init,
 360         .dma_zone_size  = SZ_128M,
 361         .restart        = davinci_restart,
 362 MACHINE_END