[PATCH v2 9/9] docs/system/arm/aspeed: Add AST1040 Bridge IC evaluation board

[Jamin Lin <jamin_lin@aspeedtech.com>]

Update the Aspeed AST10x0 documentation to include the
AST1040 evaluation board and clarify the AST10x0 family
classification.

The documentation now describes:
- AST1030 and AST1040 as Bridge IC devices
- AST1060 as a Platform Root of Trust processor
- AST1040 Cortex-M4F CPU frequency running at 400 MHz

Also add the ast1040-evb machine entry to the supported
AST10x0 SoC based machine list.

Signed-off-by: Jamin Lin <jamin_lin@aspeedtech.com>
---
 docs/system/arm/aspeed.rst | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/docs/system/arm/aspeed.rst b/docs/system/arm/aspeed.rst
index df2f539b02..7c8639c3da 100644
--- a/docs/system/arm/aspeed.rst
+++ b/docs/system/arm/aspeed.rst
@@ -440,18 +440,26 @@ Use ``tio`` or another terminal emulator to connect to the consoles:
    $ tio /dev/pts/57
 
 
-Aspeed MiniBMC and Platform Root of Trust processor family boards (``ast1030-evb``, ``ast1060-evb``)
-====================================================================================================
+Aspeed Bridge IC and Platform Root of Trust processor family boards (``ast1030-evb``, ``ast1040-evb``, ``ast1060-evb``)
+=======================================================================================================================
 
-The QEMU Aspeed machines model mini BMCs and Platform Root of Trust processors of various Aspeed
-evaluation boards. They are based on different releases of the Aspeed SoC : the AST1030 (MiniBMC)
-and AST1060 (Platform Root of Trust Processor), both integrating an Arm Cortex M4F CPU (200MHz).
+The QEMU Aspeed machines model Bridge ICs and Platform Root of Trust processors
+of various Aspeed evaluation boards. They are based on different members of
+the Aspeed AST10x0 SoC family:
+
+- AST1030 : Bridge IC
+- AST1040 : Bridge IC
+- AST1060 : Platform Root of Trust processor
+
+The AST1030 and AST1060 integrate an Arm Cortex-M4F CPU running at 200 MHz.
+The AST1040 integrates an Arm Cortex-M4F CPU running at 400 MHz.
 
 The SoC comes with SRAM, SPI, I2C, etc.
 
 AST10x0 SoC based machines :
 
 - ``ast1030-evb``          Aspeed AST1030 Evaluation board (Cortex-M4F)
+- ``ast1040-evb``          Aspeed AST1040 Evaluation board (Cortex-M4F)
 - ``ast1060-evb``          Aspeed AST1060 Evaluation board (Cortex-M4F)
 
 Supported devices
-- 
2.43.0