include/configs/am335x_evm.h

   1 /*
   2  * am335x_evm.h
   3  *
   4  * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation version 2.
   9  *
  10  * This program is distributed "as is" WITHOUT ANY WARRANTY of any
  11  * kind, whether express or implied; without even the implied warranty
  12  * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  */
  15
  16 #ifndef __CONFIG_AM335X_EVM_H
  17 #define __CONFIG_AM335X_EVM_H
  18
  19 #include <configs/ti_am335x_common.h>
  20
  21 #define MACH_TYPE_TIAM335EVM            3589    /* Until the next sync */
  22 #define CONFIG_MACH_TYPE                MACH_TYPE_TIAM335EVM
  23 #define CONFIG_BOARD_LATE_INIT
  24
  25 /* Clock Defines */
  26 #define V_OSCK                          24000000  /* Clock output from T2 */
  27 #define V_SCLK                          (V_OSCK)
  28
  29 /* Custom script for NOR */
  30 #define CONFIG_SYS_LDSCRIPT             "board/ti/am335x/u-boot.lds"
  31
  32 /* Always 128 KiB env size */
  33 #define CONFIG_ENV_SIZE                 (128 << 10)
  34
  35 /* Enhance our eMMC support / experience. */
  36 #define CONFIG_CMD_GPT
  37 #define CONFIG_EFI_PARTITION
  38 #define CONFIG_PARTITION_UUIDS
  39 #define CONFIG_CMD_PART
  40
  41 #ifdef CONFIG_NAND
  42 #define NANDARGS \
  43         "mtdids=" MTDIDS_DEFAULT "\0" \
  44         "mtdparts=" MTDPARTS_DEFAULT "\0" \
  45         "nandargs=setenv bootargs console=${console} " \
  46                 "${optargs} " \
  47                 "root=${nandroot} " \
  48                 "rootfstype=${nandrootfstype}\0" \
  49         "nandroot=ubi0:rootfs rw ubi.mtd=7,2048\0" \
  50         "nandrootfstype=ubifs rootwait=1\0" \
  51         "nandboot=echo Booting from nand ...; " \
  52                 "run nandargs; " \
  53                 "nand read ${fdtaddr} u-boot-spl-os; " \
  54                 "nand read ${loadaddr} kernel; " \
  55                 "bootz ${loadaddr} - ${fdtaddr}\0"
  56 #else
  57 #define NANDARGS ""
  58 #endif
  59
  60 #define CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG
  61
  62 #ifndef CONFIG_SPL_BUILD
  63 #define CONFIG_EXTRA_ENV_SETTINGS \
  64         "loadaddr=0x80200000\0" \
  65         "fdtaddr=0x80F80000\0" \
  66         "fdt_high=0xffffffff\0" \
  67         "boot_fdt=try\0" \
  68         "rdaddr=0x81000000\0" \
  69         "bootpart=0:2\0" \
  70         "bootdir=/boot\0" \
  71         "bootfile=zImage\0" \
  72         "fdtfile=undefined\0" \
  73         "console=ttyO0,115200n8\0" \
  74         "partitions=" \
  75                 "uuid_disk=${uuid_gpt_disk};" \
  76                 "name=rootfs,start=2MiB,size=-,uuid=${uuid_gpt_rootfs}\0" \
  77         "optargs=\0" \
  78         "mmcdev=0\0" \
  79         "mmcroot=/dev/mmcblk0p2 ro\0" \
  80         "mmcrootfstype=ext4 rootwait\0" \
  81         "rootpath=/export/rootfs\0" \
  82         "nfsopts=nolock\0" \
  83         "static_ip=${ipaddr}:${serverip}:${gatewayip}:${netmask}:${hostname}" \
  84                 "::off\0" \
  85         "ramroot=/dev/ram0 rw ramdisk_size=65536 initrd=${rdaddr},64M\0" \
  86         "ramrootfstype=ext2\0" \
  87         "mmcargs=setenv bootargs console=${console} " \
  88                 "${optargs} " \
  89                 "root=${mmcroot} " \
  90                 "rootfstype=${mmcrootfstype}\0" \
  91         "spiroot=/dev/mtdblock4 rw\0" \
  92         "spirootfstype=jffs2\0" \
  93         "spisrcaddr=0xe0000\0" \
  94         "spiimgsize=0x362000\0" \
  95         "spibusno=0\0" \
  96         "spiargs=setenv bootargs console=${console} " \
  97                 "${optargs} " \
  98                 "root=${spiroot} " \
  99                 "rootfstype=${spirootfstype}\0" \
 100         "netargs=setenv bootargs console=${console} " \
 101                 "${optargs} " \
 102                 "root=/dev/nfs " \
 103                 "nfsroot=${serverip}:${rootpath},${nfsopts} rw " \
 104                 "ip=dhcp\0" \
 105         "bootenv=uEnv.txt\0" \
 106         "loadbootenv=load mmc ${mmcdev} ${loadaddr} ${bootenv}\0" \
 107         "importbootenv=echo Importing environment from mmc ...; " \
 108                 "env import -t $loadaddr $filesize\0" \
 109         "ramargs=setenv bootargs console=${console} " \
 110                 "${optargs} " \
 111                 "root=${ramroot} " \
 112                 "rootfstype=${ramrootfstype}\0" \
 113         "loadramdisk=load mmc ${mmcdev} ${rdaddr} ramdisk.gz\0" \
 114         "loadimage=load mmc ${bootpart} ${loadaddr} ${bootdir}/${bootfile}\0" \
 115         "loadfdt=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
 116         "mmcloados=run mmcargs; " \
 117                 "if test ${boot_fdt} = yes || test ${boot_fdt} = try; then " \
 118                         "if run loadfdt; then " \
 119                                 "bootz ${loadaddr} - ${fdtaddr}; " \
 120                         "else " \
 121                                 "if test ${boot_fdt} = try; then " \
 122                                         "bootz; " \
 123                                 "else " \
 124                                         "echo WARN: Cannot load the DT; " \
 125                                 "fi; " \
 126                         "fi; " \
 127                 "else " \
 128                         "bootz; " \
 129                 "fi;\0" \
 130         "mmcboot=mmc dev ${mmcdev}; " \
 131                 "if mmc rescan; then " \
 132                         "echo SD/MMC found on device ${mmcdev};" \
 133                         "if run loadbootenv; then " \
 134                                 "echo Loaded environment from ${bootenv};" \
 135                                 "run importbootenv;" \
 136                         "fi;" \
 137                         "if test -n $uenvcmd; then " \
 138                                 "echo Running uenvcmd ...;" \
 139                                 "run uenvcmd;" \
 140                         "fi;" \
 141                         "if run loadimage; then " \
 142                                 "run mmcloados;" \
 143                         "fi;" \
 144                 "fi;\0" \
 145         "spiboot=echo Booting from spi ...; " \
 146                 "run spiargs; " \
 147                 "sf probe ${spibusno}:0; " \
 148                 "sf read ${loadaddr} ${spisrcaddr} ${spiimgsize}; " \
 149                 "bootz ${loadaddr}\0" \
 150         "netboot=echo Booting from network ...; " \
 151                 "setenv autoload no; " \
 152                 "dhcp; " \
 153                 "tftp ${loadaddr} ${bootfile}; " \
 154                 "tftp ${fdtaddr} ${fdtfile}; " \
 155                 "run netargs; " \
 156                 "bootz ${loadaddr} - ${fdtaddr}\0" \
 157         "ramboot=echo Booting from ramdisk ...; " \
 158                 "run ramargs; " \
 159                 "bootz ${loadaddr} ${rdaddr} ${fdtaddr}\0" \
 160         "findfdt="\
 161                 "if test $board_name = A335BONE; then " \
 162                         "setenv fdtfile am335x-bone.dtb; fi; " \
 163                 "if test $board_name = A335BNLT; then " \
 164                         "setenv fdtfile am335x-boneblack.dtb; fi; " \
 165                 "if test $board_name = A33515BB; then " \
 166                         "setenv fdtfile am335x-evm.dtb; fi; " \
 167                 "if test $board_name = A335X_SK; then " \
 168                         "setenv fdtfile am335x-evmsk.dtb; fi; " \
 169                 "if test $fdtfile = undefined; then " \
 170                         "echo WARNING: Could not determine device tree to use; fi; \0" \
 171         NANDARGS \
 172         DFUARGS
 173 #endif
 174
 175 #define CONFIG_BOOTCOMMAND \
 176         "run findfdt; " \
 177         "run mmcboot;" \
 178         "setenv mmcdev 1; " \
 179         "setenv bootpart 1:2; " \
 180         "run mmcboot;" \
 181         "run nandboot;"
 182
 183 /* NS16550 Configuration */
 184 #define CONFIG_SYS_NS16550_COM1         0x44e09000      /* Base EVM has UART0 */
 185 #define CONFIG_SYS_NS16550_COM2         0x48022000      /* UART1 */
 186 #define CONFIG_SYS_NS16550_COM3         0x48024000      /* UART2 */
 187 #define CONFIG_SYS_NS16550_COM4         0x481a6000      /* UART3 */
 188 #define CONFIG_SYS_NS16550_COM5         0x481a8000      /* UART4 */
 189 #define CONFIG_SYS_NS16550_COM6         0x481aa000      /* UART5 */
 190 #define CONFIG_BAUDRATE                 115200
 191
 192 #define CONFIG_CMD_EEPROM
 193 #define CONFIG_ENV_EEPROM_IS_ON_I2C
 194 #define CONFIG_SYS_I2C_EEPROM_ADDR      0x50    /* Main EEPROM */
 195 #define CONFIG_SYS_I2C_EEPROM_ADDR_LEN  2
 196 #define CONFIG_SYS_I2C_MULTI_EEPROMS
 197
 198 /* PMIC support */
 199 #define CONFIG_POWER_TPS65217
 200 #define CONFIG_POWER_TPS65910
 201
 202 /* SPL */
 203 #ifndef CONFIG_NOR_BOOT
 204 #define CONFIG_SPL_POWER_SUPPORT
 205 #define CONFIG_SPL_YMODEM_SUPPORT
 206
 207 /* Bootcount using the RTC block */
 208 #define CONFIG_BOOTCOUNT_LIMIT
 209 #define CONFIG_BOOTCOUNT_AM33XX
 210
 211 /* CPSW support */
 212 #define CONFIG_SPL_ETH_SUPPORT
 213
 214 /* USB gadget RNDIS */
 215 #define CONFIG_SPL_MUSB_NEW_SUPPORT
 216
 217 /* General network SPL, both CPSW and USB gadget RNDIS */
 218 #define CONFIG_SPL_NET_SUPPORT
 219 #define CONFIG_SPL_ENV_SUPPORT
 220 #define CONFIG_SPL_NET_VCI_STRING       "AM335x U-Boot SPL"
 221
 222 /* SPI flash. */
 223 #define CONFIG_SPL_SPI_SUPPORT
 224 #define CONFIG_SPL_SPI_FLASH_SUPPORT
 225 #define CONFIG_SPL_SPI_LOAD
 226 #define CONFIG_SPL_SPI_BUS              0
 227 #define CONFIG_SPL_SPI_CS               0
 228 #define CONFIG_SYS_SPI_U_BOOT_OFFS      0x20000
 229
 230 #define CONFIG_SPL_LDSCRIPT             "$(CPUDIR)/am33xx/u-boot-spl.lds"
 231
 232 #ifdef CONFIG_NAND
 233 #define CONFIG_NAND_OMAP_GPMC
 234 #define CONFIG_NAND_OMAP_ELM
 235 #define CONFIG_SYS_NAND_5_ADDR_CYCLE
 236 #define CONFIG_SYS_NAND_PAGE_COUNT      (CONFIG_SYS_NAND_BLOCK_SIZE / \
 237                                          CONFIG_SYS_NAND_PAGE_SIZE)
 238 #define CONFIG_SYS_NAND_PAGE_SIZE       2048
 239 #define CONFIG_SYS_NAND_OOBSIZE         64
 240 #define CONFIG_SYS_NAND_BLOCK_SIZE      (128*1024)
 241 #define CONFIG_SYS_NAND_BAD_BLOCK_POS   NAND_LARGE_BADBLOCK_POS
 242 #define CONFIG_SYS_NAND_ECCPOS          { 2, 3, 4, 5, 6, 7, 8, 9, \
 243                                          10, 11, 12, 13, 14, 15, 16, 17, \
 244                                          18, 19, 20, 21, 22, 23, 24, 25, \
 245                                          26, 27, 28, 29, 30, 31, 32, 33, \
 246                                          34, 35, 36, 37, 38, 39, 40, 41, \
 247                                          42, 43, 44, 45, 46, 47, 48, 49, \
 248                                          50, 51, 52, 53, 54, 55, 56, 57, }
 249
 250 #define CONFIG_SYS_NAND_ECCSIZE         512
 251 #define CONFIG_SYS_NAND_ECCBYTES        14
 252 #define CONFIG_SYS_NAND_ONFI_DETECTION
 253 #define CONFIG_NAND_OMAP_ECCSCHEME      OMAP_ECC_BCH8_CODE_HW
 254 #define CONFIG_SYS_NAND_U_BOOT_START    CONFIG_SYS_TEXT_BASE
 255 #define CONFIG_SYS_NAND_U_BOOT_OFFS     0x80000
 256 #endif
 257 #endif
 258
 259 /*
 260  * For NOR boot, we must set this to the start of where NOR is mapped
 261  * in memory.
 262  */
 263 #ifdef CONFIG_NOR_BOOT
 264 #define CONFIG_SYS_TEXT_BASE            0x08000000
 265 #endif
 266
 267 /*
 268  * USB configuration.  We enable MUSB support, both for host and for
 269  * gadget.  We set USB0 as peripheral and USB1 as host, based on the
 270  * board schematic and physical port wired to each.  Then for host we
 271  * add mass storage support and for gadget we add both RNDIS ethernet
 272  * and DFU.
 273  */
 274 #define CONFIG_USB_MUSB_DSPS
 275 #define CONFIG_ARCH_MISC_INIT
 276 #define CONFIG_MUSB_GADGET
 277 #define CONFIG_MUSB_PIO_ONLY
 278 #define CONFIG_MUSB_DISABLE_BULK_COMBINE_SPLIT
 279 #define CONFIG_USB_GADGET
 280 #define CONFIG_USBDOWNLOAD_GADGET
 281 #define CONFIG_USB_GADGET_DUALSPEED
 282 #define CONFIG_USB_GADGET_VBUS_DRAW     2
 283 #define CONFIG_MUSB_HOST
 284 #define CONFIG_AM335X_USB0
 285 #define CONFIG_AM335X_USB0_MODE MUSB_PERIPHERAL
 286 #define CONFIG_AM335X_USB1
 287 #define CONFIG_AM335X_USB1_MODE MUSB_HOST
 288
 289 #ifdef CONFIG_MUSB_HOST
 290 #define CONFIG_CMD_USB
 291 #define CONFIG_USB_STORAGE
 292 #endif
 293
 294 #ifdef CONFIG_MUSB_GADGET
 295 #define CONFIG_USB_ETHER
 296 #define CONFIG_USB_ETH_RNDIS
 297 #define CONFIG_USBNET_HOST_ADDR "de:ad:be:af:00:00"
 298
 299 /* USB TI's IDs */
 300 #define CONFIG_G_DNL_VENDOR_NUM 0x0403
 301 #define CONFIG_G_DNL_PRODUCT_NUM 0xBD00
 302 #define CONFIG_G_DNL_MANUFACTURER "Texas Instruments"
 303 #endif /* CONFIG_MUSB_GADGET */
 304
 305 #if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_USBETH_SUPPORT)
 306 /* disable host part of MUSB in SPL */
 307 #undef CONFIG_MUSB_HOST
 308 /* disable EFI partitions and partition UUID support */
 309 #undef CONFIG_PARTITION_UUIDS
 310 #undef CONFIG_EFI_PARTITION
 311 /*
 312  * Disable CPSW SPL support so we fit within the 101KiB limit.
 313  */
 314 #undef CONFIG_SPL_ETH_SUPPORT
 315 #endif
 316
 317 /* USB Device Firmware Update support */
 318 #define CONFIG_DFU_FUNCTION
 319 #define CONFIG_DFU_MMC
 320 #define CONFIG_CMD_DFU
 321 #define DFU_ALT_INFO_MMC \
 322         "dfu_alt_info_mmc=" \
 323         "boot part 0 1;" \
 324         "rootfs part 0 2;" \
 325         "MLO fat 0 1;" \
 326         "MLO.raw mmc 100 100;" \
 327         "u-boot.img.raw mmc 300 400;" \
 328         "spl-os-args.raw mmc 80 80;" \
 329         "spl-os-image.raw mmc 900 2000;" \
 330         "spl-os-args fat 0 1;" \
 331         "spl-os-image fat 0 1;" \
 332         "u-boot.img fat 0 1;" \
 333         "uEnv.txt fat 0 1\0"
 334 #ifdef CONFIG_NAND
 335 #define CONFIG_DFU_NAND
 336 #define DFU_ALT_INFO_NAND \
 337         "dfu_alt_info_nand=" \
 338         "SPL part 0 1;" \
 339         "SPL.backup1 part 0 2;" \
 340         "SPL.backup2 part 0 3;" \
 341         "SPL.backup3 part 0 4;" \
 342         "u-boot part 0 5;" \
 343         "u-boot-spl-os part 0 6;" \
 344         "kernel part 0 8;" \
 345         "rootfs part 0 9\0"
 346 #else
 347 #define DFU_ALT_INFO_NAND ""
 348 #endif
 349 #define CONFIG_DFU_RAM
 350 #define DFU_ALT_INFO_RAM \
 351         "dfu_alt_info_ram=" \
 352         "kernel ram 0x80200000 0xD80000;" \
 353         "fdt ram 0x80F80000 0x80000;" \
 354         "ramdisk ram 0x81000000 0x4000000\0"
 355 #define DFUARGS \
 356         "dfu_alt_info_emmc=rawemmc mmc 0 3751936\0" \
 357         DFU_ALT_INFO_MMC \
 358         DFU_ALT_INFO_RAM \
 359         DFU_ALT_INFO_NAND
 360
 361 /*
 362  * Default to using SPI for environment, etc.
 363  * 0x000000 - 0x020000 : SPL (128KiB)
 364  * 0x020000 - 0x0A0000 : U-Boot (512KiB)
 365  * 0x0A0000 - 0x0BFFFF : First copy of U-Boot Environment (128KiB)
 366  * 0x0C0000 - 0x0DFFFF : Second copy of U-Boot Environment (128KiB)
 367  * 0x0E0000 - 0x442000 : Linux Kernel
 368  * 0x442000 - 0x800000 : Userland
 369  */
 370 #if defined(CONFIG_SPI_BOOT)
 371 #define CONFIG_ENV_IS_IN_SPI_FLASH
 372 #define CONFIG_SYS_REDUNDAND_ENVIRONMENT
 373 #define CONFIG_ENV_SPI_MAX_HZ           CONFIG_SF_DEFAULT_SPEED
 374 #define CONFIG_ENV_SECT_SIZE            (4 << 10) /* 4 KB sectors */
 375 #define CONFIG_ENV_OFFSET               (768 << 10) /* 768 KiB in */
 376 #define CONFIG_ENV_OFFSET_REDUND        (896 << 10) /* 896 KiB in */
 377 #define MTDIDS_DEFAULT                  "nor0=m25p80-flash.0"
 378 #define MTDPARTS_DEFAULT                "mtdparts=m25p80-flash.0:128k(SPL)," \
 379                                         "512k(u-boot),128k(u-boot-env1)," \
 380                                         "128k(u-boot-env2),3464k(kernel)," \
 381                                         "-(rootfs)"
 382 #elif defined(CONFIG_EMMC_BOOT)
 383 #undef CONFIG_ENV_IS_NOWHERE
 384 #define CONFIG_ENV_IS_IN_MMC
 385 #define CONFIG_SYS_MMC_ENV_DEV          1
 386 #define CONFIG_SYS_MMC_ENV_PART         2
 387 #define CONFIG_ENV_OFFSET               0x0
 388 #define CONFIG_ENV_OFFSET_REDUND        (CONFIG_ENV_OFFSET + CONFIG_ENV_SIZE)
 389 #define CONFIG_SYS_REDUNDAND_ENVIRONMENT
 390 #endif
 391
 392 /* SPI flash. */
 393 #define CONFIG_CMD_SF
 394 #define CONFIG_SPI_FLASH
 395 #define CONFIG_SPI_FLASH_WINBOND
 396 #define CONFIG_SF_DEFAULT_SPEED         24000000
 397
 398 /* Network. */
 399 #define CONFIG_PHY_GIGE
 400 #define CONFIG_PHYLIB
 401 #define CONFIG_PHY_SMSC
 402
 403 /* NAND support */
 404 #ifdef CONFIG_NAND
 405 #define CONFIG_CMD_NAND
 406 #define GPMC_NAND_ECC_LP_x16_LAYOUT     1
 407 #if !defined(CONFIG_SPI_BOOT) && !defined(CONFIG_NOR_BOOT)
 408 #define MTDIDS_DEFAULT                  "nand0=omap2-nand.0"
 409 #define MTDPARTS_DEFAULT                "mtdparts=omap2-nand.0:128k(SPL)," \
 410                                         "128k(SPL.backup1)," \
 411                                         "128k(SPL.backup2)," \
 412                                         "128k(SPL.backup3),1792k(u-boot)," \
 413                                         "128k(u-boot-spl-os)," \
 414                                         "128k(u-boot-env),5m(kernel),-(rootfs)"
 415 #define CONFIG_ENV_IS_IN_NAND
 416 #define CONFIG_ENV_OFFSET               0x260000 /* environment starts here */
 417 #define CONFIG_SYS_ENV_SECT_SIZE        (128 << 10)     /* 128 KiB */
 418 #endif
 419 #endif
 420
 421 /*
 422  * NOR Size = 16 MiB
 423  * Number of Sectors/Blocks = 128
 424  * Sector Size = 128 KiB
 425  * Word length = 16 bits
 426  * Default layout:
 427  * 0x000000 - 0x07FFFF : U-Boot (512 KiB)
 428  * 0x080000 - 0x09FFFF : First copy of U-Boot Environment (128 KiB)
 429  * 0x0A0000 - 0x0BFFFF : Second copy of U-Boot Environment (128 KiB)
 430  * 0x0C0000 - 0x4BFFFF : Linux Kernel (4 MiB)
 431  * 0x4C0000 - 0xFFFFFF : Userland (11 MiB + 256 KiB)
 432  */
 433 #if defined(CONFIG_NOR)
 434 #undef CONFIG_SYS_NO_FLASH
 435 #define CONFIG_CMD_FLASH
 436 #define CONFIG_SYS_FLASH_USE_BUFFER_WRITE
 437 #define CONFIG_SYS_FLASH_PROTECTION
 438 #define CONFIG_SYS_FLASH_CFI
 439 #define CONFIG_FLASH_CFI_DRIVER
 440 #define CONFIG_FLASH_CFI_MTD
 441 #define CONFIG_SYS_MAX_FLASH_SECT       128
 442 #define CONFIG_SYS_MAX_FLASH_BANKS      1
 443 #define CONFIG_SYS_FLASH_BASE           (0x08000000)
 444 #define CONFIG_SYS_FLASH_CFI_WIDTH      FLASH_CFI_16BIT
 445 #define CONFIG_SYS_MONITOR_BASE         CONFIG_SYS_FLASH_BASE
 446 #ifdef CONFIG_NOR_BOOT
 447 #define CONFIG_ENV_IS_IN_FLASH
 448 #define CONFIG_ENV_SECT_SIZE            (128 << 10)     /* 128 KiB */
 449 #define CONFIG_ENV_OFFSET               (512 << 10)     /* 512 KiB */
 450 #define CONFIG_ENV_OFFSET_REDUND        (768 << 10)     /* 768 KiB */
 451 #define MTDIDS_DEFAULT                  "nor0=physmap-flash.0"
 452 #define MTDPARTS_DEFAULT                "mtdparts=physmap-flash.0:" \
 453                                         "512k(u-boot)," \
 454                                         "128k(u-boot-env1)," \
 455                                         "128k(u-boot-env2)," \
 456                                         "4m(kernel),-(rootfs)"
 457 #endif
 458 #endif  /* NOR support */
 459
 460 #endif  /* ! __CONFIG_AM335X_EVM_H */