board/km: add support for expu1 design based on nxp

The EXPU1 design is a new 40G capable ethernet service unit card for
Hitachi-Powergrids wired-com product lines.

The base SoC is same as for already added SELI8 card, consequently the
already added u-boot support for SELI8 is reused.

Signed-off-by: Rainer Boschung <rainer.boschung@hitachi-powergrids.com>
Signed-off-by: Aleksandar Gerasimovski <aleksandar.gerasimovski@hitachi-powergrids.com>
[Fixed new line error at EOF]
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>

configs/pg_wcom_expu1_defconfig

@@ -0,0 +1,70 @@
+CONFIG_ARM=y
+CONFIG_TARGET_PG_WCOM_EXPU1=y
+CONFIG_SYS_TEXT_BASE=0x60100000
+CONFIG_NR_DRAM_BANKS=1
+CONFIG_KM_DEF_NETDEV="eth2"
+CONFIG_KM_COMMON_ETH_INIT=y
+CONFIG_PIGGY_MAC_ADDRESS_OFFSET=3
+CONFIG_SYS_MEMTEST_START=0x80000000
+CONFIG_SYS_MEMTEST_END=0x9fffffff
+CONFIG_ENV_SIZE=0x4000
+CONFIG_ENV_SECT_SIZE=0x20000
+CONFIG_BOOTCOUNT_BOOTLIMIT=3
+CONFIG_SYS_BOOTCOUNT_ADDR=0x70000020
+CONFIG_DEFAULT_DEVICE_TREE="ls1021a-pg-wcom-expu1"
+CONFIG_AHCI=y
+CONFIG_DISTRO_DEFAULTS=y
+CONFIG_FIT=y
+CONFIG_FIT_VERBOSE=y
+CONFIG_OF_BOARD_SETUP=y
+CONFIG_OF_STDOUT_VIA_ALIAS=y
+CONFIG_BOOTDELAY=3
+CONFIG_USE_BOOTARGS=y
+CONFIG_BOOTARGS="console=ttyS0,115200 root=/dev/ram0"
+CONFIG_SILENT_CONSOLE=y
+CONFIG_MISC_INIT_R=y
+CONFIG_LAST_STAGE_INIT=y
+CONFIG_CMD_IMLS=y
+CONFIG_CMD_GREPENV=y
+CONFIG_CMD_MEMINFO=y
+CONFIG_CMD_MEMTEST=y
+CONFIG_CMD_GPT=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_NAND=y
+CONFIG_CMD_NAND_TRIMFFS=y
+CONFIG_CMD_CRAMFS=y
+CONFIG_CMD_MTDPARTS=y
+CONFIG_MTDIDS_DEFAULT="nor0=60000000.nor,nand0=68000000.flash"
+CONFIG_MTDPARTS_DEFAULT="mtdparts=60000000.nor:128k(rcw),128k(qe),128k(envred),128k(env),512k(res),1m(u-boot),-(ubi0);68000000.flash:-(ubi1)"
+CONFIG_CMD_UBI=y
+CONFIG_OF_CONTROL=y
+CONFIG_ENV_IS_IN_FLASH=y
+CONFIG_ENV_OVERWRITE=y
+CONFIG_ENV_ADDR=0x60060000
+CONFIG_ENV_ADDR_REDUND=0x60040000
+CONFIG_SYS_REDUNDAND_ENVIRONMENT=y
+CONFIG_DM=y
+CONFIG_BOOTCOUNT_LIMIT=y
+CONFIG_SYS_FSL_DDR3=y
+# CONFIG_MMC is not set
+CONFIG_SYS_I2C_MXC=y
+CONFIG_SYS_I2C_MXC_I2C1=y
+CONFIG_SYS_I2C_MXC_I2C2=y
+CONFIG_SYS_I2C_MXC_I2C3=y
+CONFIG_MTD=y
+CONFIG_MTD_NOR_FLASH=y
+CONFIG_FLASH_CFI_DRIVER=y
+CONFIG_SYS_FLASH_USE_BUFFER_WRITE=y
+CONFIG_FLASH_CFI_MTD=y
+CONFIG_SYS_FLASH_CFI=y
+CONFIG_MTD_RAW_NAND=y
+CONFIG_PHY_MARVELL=y
+CONFIG_PHY_FIXED=y
+CONFIG_DM_ETH=y
+CONFIG_DM_MDIO=y
+CONFIG_PHY_GIGE=y
+CONFIG_MII=y
+CONFIG_TSEC_ENET=y
+CONFIG_SPECIFY_CONSOLE_INDEX=y
+CONFIG_DM_SERIAL=y
+CONFIG_SYS_NS16550=y