board/km: add support for seli8 design based on nxp ls102x

The SELI8 design is a new tdm service unit card for Hitachi-Powergrids
XMC and FOX product lines.

It is based on NXP LS1021 SoC and it provides following interfaces:
 - IFC interface for NOR, NAND and external FPGA's
 - 1 x RGMII ETH for debug purposes
 - 2 x SGMII ETH for management communication via back-plane
 - 1 x uQE HDLC for management communication via back-plane
 - 1 x I2C for peripheral devices
 - 1 x SPI for peripheral devices
 - 1 x UART for debug logging

It is foreseen that the design will be later re-used for another XMC and
FOX service cards with similar SoC requirements.

Signed-off-by: Rainer Boschung <rainer.boschung@hitachi-powergrids.com>
Signed-off-by: Matteo Ghidoni <matteo.ghidoni@hitachi-powergrids.com>
Signed-off-by: Aleksandar Gerasimovski <aleksandar.gerasimovski@hitachi-powergrids.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 01b5ba5..8b40fc4 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -1463,6 +1463,24 @@
 	select DM_SPI_FLASH if FSL_DSPI || FSL_QSPI
 	imply SCSI
 
+config TARGET_PG_WCOM_SELI8
+	bool "Support Hitachi-Powergrids SELI8 service unit card"
+	select ARCH_LS1021A
+	select ARCH_SUPPORT_PSCI
+	select BOARD_EARLY_INIT_F
+	select BOARD_LATE_INIT
+	select CPU_V7A
+	select CPU_V7_HAS_NONSEC
+	select CPU_V7_HAS_VIRT
+	select SYS_FSL_DDR
+	select FSL_DDR_INTERACTIVE
+	select VENDOR_KM
+	imply SCSI
+	help
+	 Support for Hitachi-Powergrids SELI8 service unit card.
+	 SELI8 is a QorIQ LS1021a based service unit card used
+	 in XMC20 and FOX615 product families.
+
 config TARGET_LS1021ATSN
 	bool "Support ls1021atsn"
 	select ARCH_LS1021A
@@ -1972,6 +1990,7 @@
 source "board/vscom/baltos/Kconfig"
 source "board/phytium/durian/Kconfig"
 source "board/xen/xenguest_arm64/Kconfig"
+source "board/keymile/Kconfig"
 
 source "arch/arm/Kconfig.debug"