feat(nuvoton): added support for npcm845x chip

Initial version

Signed-off-by: Margarita Glushkin <rutigl@gmail.com>
Change-Id: If433d325a90b519ae5f02411865bffd368ff2824
diff --git a/docs/plat/index.rst b/docs/plat/index.rst
index fe2cc44..2eec68c 100644
--- a/docs/plat/index.rst
+++ b/docs/plat/index.rst
@@ -28,6 +28,7 @@
    imx8
    imx8m
    imx9
+   npcm845x
    nxp/index
    poplar
    qemu
diff --git a/docs/plat/npcm845x.rst b/docs/plat/npcm845x.rst
new file mode 100644
index 0000000..91dbfd9
--- /dev/null
+++ b/docs/plat/npcm845x.rst
@@ -0,0 +1,21 @@
+Nuvoton NPCM845X
+================
+
+Nuvoton NPCM845X is the Nuvoton Arbel NPCM8XX Board Management controller (BMC) SoC.
+
+The Nuvoton Arbel NPCM845X SoC is a fourth-generation BMC.
+The NPCM845X computing subsystem comprises a quadcore Arm Cortex-A35 CPU.
+
+This SoC includes secured components, i.e., bootblock stored in ROM,
+u-boot, OPTEE-OS, trusted-firmware-a and Linux.
+Every stage is measured and validated by the bootblock.
+This SoC was tested on the Arbel NPCM845X evaluation board.
+
+
+How to Build
+------------
+
+.. code:: shell
+
+    make CROSS_COMPILE=aarch64-none-elf- PLAT=npcm845x all SPD=opteed
+