[PATCH v3 17/17] docs/system/arm: Add Description for NPCM8XX SoC

[Hao Wu <wuhaotsh@google.com>]

NPCM8XX SoC is the successor of the NPCM7XX. It features quad-core
Cortex-A35 (Armv8, 64-bit) CPUs and some additional peripherals.

This document describes the NPCM8XX SoC and an evaluation board
(NPCM 845 EVB).

Signed-off-by: Hao Wu <wuhaotsh@google.com>
---
 docs/system/arm/nuvoton.rst | 27 ++++++++++++++++++++-------
 1 file changed, 20 insertions(+), 7 deletions(-)

diff --git a/docs/system/arm/nuvoton.rst b/docs/system/arm/nuvoton.rst
index 05059378e5..e4827fb43a 100644
--- a/docs/system/arm/nuvoton.rst
+++ b/docs/system/arm/nuvoton.rst
@@ -1,12 +1,13 @@
-Nuvoton iBMC boards (``kudo-bmc``, ``mori-bmc``, ``npcm750-evb``, ``quanta-gbs-bmc``, ``quanta-gsj``)
-=====================================================================================================
+Nuvoton iBMC boards (``kudo-bmc``, ``mori-bmc``, ``npcm750-evb``, ``quanta-gbs-bmc``, ``quanta-gsj``, ``npcm845-evb``)
+======================================================================================================================
 
-The `Nuvoton iBMC`_ chips (NPCM7xx) are a family of ARM-based SoCs that are
+The `Nuvoton iBMC`_ chips are a family of Arm-based SoCs that are
 designed to be used as Baseboard Management Controllers (BMCs) in various
-servers. They all feature one or two ARM Cortex-A9 CPU cores, as well as an
-assortment of peripherals targeted for either Enterprise or Data Center /
-Hyperscale applications. The former is a superset of the latter, so NPCM750 has
-all the peripherals of NPCM730 and more.
+servers. Currently there are two families: NPCM7XX series and
+NPCM8XX series. NPCM7XX series feature one or two Arm Cortex-A9 CPU cores,
+while NPCM8XX feature 4 Arm Cortex-A35 CPU cores. Both series contain a
+different assortment of peripherals targeted for either Enterprise or Data
+Center / Hyperscale applications.
 
 .. _Nuvoton iBMC: https://www.nuvoton.com/products/cloud-computing/ibmc/
 
@@ -27,6 +28,11 @@ There are also two more SoCs, NPCM710 and NPCM705, which are single-core
 variants of NPCM750 and NPCM730, respectively. These are currently not
 supported by QEMU.
 
+The NPCM8xx SoC is the successor of the NPCM7xx SoC. It has 4 Cortex-A35 cores.
+The following machines are based on this chip :
+
+- ``npcm845-evb``       Nuvoton NPCM845 Evaluation board
+
 Supported devices
 -----------------
 
@@ -62,6 +68,8 @@ Missing devices
    * System Wake-up Control (SWC)
    * Shared memory (SHM)
    * eSPI slave interface
+   * Block-transfer interface (8XX only)
+   * Virtual UART (8XX only)
 
  * Ethernet controller (GMAC)
  * USB device (USBD)
@@ -76,6 +84,11 @@ Missing devices
  * Video capture
  * Encoding compression engine
  * Security features
+ * I3C buses (8XX only)
+ * Temperature sensor interface (8XX only)
+ * Virtual UART (8XX only)
+ * Flash monitor (8XX only)
+ * JTAG master (8XX only)
 
 Boot options
 ------------
-- 
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