MSCC: Add board support for Servalt SoC family

Add board support, configuration and DTS for Servalt SoC
family. Currently there is one board in this family.

Reviewed-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
diff --git a/configs/mscc_servalt_defconfig b/configs/mscc_servalt_defconfig
new file mode 100644
index 0000000..f23617e
--- /dev/null
+++ b/configs/mscc_servalt_defconfig
@@ -0,0 +1,60 @@
+CONFIG_MIPS=y
+CONFIG_SYS_TEXT_BASE=0x40000000
+CONFIG_SYS_MALLOC_F_LEN=0x2000
+CONFIG_ARCH_MSCC=y
+CONFIG_SOC_SERVALT=y
+CONFIG_SYS_LITTLE_ENDIAN=y
+CONFIG_FIT=y
+CONFIG_BOOTDELAY=3
+CONFIG_USE_BOOTARGS=y
+CONFIG_BOOTARGS="console=ttyS0,115200"
+CONFIG_LOGLEVEL=7
+CONFIG_DISPLAY_CPUINFO=y
+CONFIG_SYS_PROMPT="servalt # "
+# CONFIG_CMD_BDI is not set
+# CONFIG_CMD_CONSOLE is not set
+# CONFIG_CMD_ELF is not set
+# CONFIG_CMD_EXPORTENV is not set
+# CONFIG_CMD_IMPORTENV is not set
+# CONFIG_CMD_CRC32 is not set
+CONFIG_CMD_MD5SUM=y
+CONFIG_CMD_MEMINFO=y
+CONFIG_CMD_MEMTEST=y
+# CONFIG_CMD_FLASH is not set
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_SF=y
+CONFIG_CMD_SPI=y
+# CONFIG_CMD_NET is not set
+CONFIG_CMD_MTDPARTS=y
+CONFIG_MTDIDS_DEFAULT="nor0=spi_flash"
+CONFIG_MTDPARTS_DEFAULT="mtdparts=spi_flash:1m(UBoot),256k(Env),256k(Env.bk)"
+# CONFIG_ISO_PARTITION is not set
+CONFIG_DEFAULT_DEVICE_TREE="servalt_pcb116"
+CONFIG_OF_LIST="servalt_pcb116"
+CONFIG_DTB_RESELECT=y
+CONFIG_MULTI_DTB_FIT=y
+CONFIG_ENV_IS_IN_SPI_FLASH=y
+CONFIG_NET_RANDOM_ETHADDR=y
+CONFIG_CLK=y
+CONFIG_DM_GPIO=y
+CONFIG_MSCC_SGPIO=y
+CONFIG_LED=y
+CONFIG_LED_GPIO=y
+CONFIG_DM_SPI_FLASH=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_BAR=y
+CONFIG_SPI_FLASH_GIGADEVICE=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_SPANSION=y
+CONFIG_SPI_FLASH_WINBOND=y
+CONFIG_SPI_FLASH_MTD=y
+CONFIG_DM_ETH=y
+CONFIG_PINCTRL=y
+CONFIG_PINCONF=y
+CONFIG_DM_SERIAL=y
+CONFIG_SYS_NS16550=y
+CONFIG_SPI=y
+CONFIG_DM_SPI=y
+CONFIG_MSCC_BB_SPI=y
+CONFIG_LZMA=y
+CONFIG_XZ=y