diff --git a/.oebuild/platform/hi309a.yaml b/.oebuild/platform/hi309a.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..4257c6eba237a9352a4535ac2908d37f36e98db5
--- /dev/null
+++ b/.oebuild/platform/hi309a.yaml
@@ -0,0 +1,8 @@
+type: platform
+
+machine: hi309a
+
+toolchain_type: EXTERNAL_TOOLCHAIN:aarch64
+
+layers:
+  - yocto-meta-openeuler/bsp/meta-hisilicon
diff --git a/bsp/meta-hisilicon/conf/machine/hi309a.conf b/bsp/meta-hisilicon/conf/machine/hi309a.conf
new file mode 100644
index 0000000000000000000000000000000000000000..97b8ddd0a3dcb8b385c5c9d5a782d6e4a0dd6dba
--- /dev/null
+++ b/bsp/meta-hisilicon/conf/machine/hi309a.conf
@@ -0,0 +1,64 @@
+require conf/machine/include/hi309a.inc
+
+# auto load module during startup
+KERNEL_MODULE_AUTOLOAD = " ${@bb.utils.contains('MCS_FEATURES', 'openamp', 'mcs_km', '', d)} "
+
+#==================================================================================
+# README: How to Add a New hi309x Machine (hi3093 Configuration As Template)
+#==================================================================================
+#
+# This file demonstrates the pattern for adding a new hi309x variant machine
+# by inheriting from the base hi3093 configuration with minimal customizations.
+#
+# BACKGROUND:
+# -----------
+# The hi3093 recipes are the first recipes set in the hi309x platform series. 
+# To add a new variant (like hi309a, hi309b, etc.) with subtle difference, 
+# you mirror the structure and use inheritance to avoid code duplication.
+#
+# FILES CREATED/ADDED FOR hi309a:
+# --------------------------------
+# 1. conf/machine/hi309a.conf              - Main machine config (this file)
+# 2. conf/machine/include/hi309a.inc       - Machine-specific overrides
+# 3. recipes-kernel/linux/linux-hi309a.inc - Kernel-related configurations
+# 4. recipes-core/images/bsp-hi309a.inc    - BSP packages to be installed, used for all openeuiler images (tiny, standard, etc.)
+# 5. recipes-core/images/image-hi309a.inc  - Image composition config, (mainly kernel modules)
+# 6. recipes-core/images/image-early-config-hi309a.inc - Early image config
+# 7. .oebuild/platform/hi309a.yaml         - Platform config for oebuild
+#
+# Common customization areas:
+#   1. MACHINEOVERRIDES - Add your machine name to the override chain
+#   2. Kernel defconfig - Only create if different from hi3093
+#   3. MACHINE_FEATURES - Add/remove features specific to your variant
+#   4. IMAGE_INSTALL - Add/remove packages in bsp-<new-machine>.inc
+#   5. KERNEL_MODULE_AUTOLOAD - Auto-load specific modules
+#   6. DISTRO_FEATURES - Add variant-specific distro features
+#
+# EXAMPLE (hi309a customizations):
+# ---------------------------------
+# MACHINEOVERRIDES =. "hi309a:march64le:"
+# (Adds hi309a to the override chain, inherits all hi3093 settings)
+#
+# Kernel config optimization:
+#   Instead of creating a duplicate defconfig, hi309a uses hi3093's directly:
+#   OPENEULER_KERNEL_CONFIG = "file://config/hi3093/defconfig"
+#   (Saves ~4591 lines of duplication when configurations are identical)
+#
+# MAINTENANCE TIP:
+# ----------------
+# When hi3093 base configuration is updated, review if changes need to be
+# propagated to or are compatible with your hi309x variant. Since most
+# configuration is inherited automatically, updates are usually minimal.
+#
+# TROUBLESHOOTING:
+# ----------------
+# - If a package isn't working as expected, check MACHINEOVERRIDES includes
+#   your machine name
+# - Verify kernel configuration with: bitbake -c menuconfig virtual/kernel
+# - Check package inclusion with: bitbake <image-name> -g
+# - Use bitbake-getvar to inspect variable values
+#
+# For more information, see hi3093.inc and hi309a.inc for examples.
+#
+#==================================================================================
+
diff --git a/bsp/meta-hisilicon/conf/machine/include/hi309a.inc b/bsp/meta-hisilicon/conf/machine/include/hi309a.inc
new file mode 100644
index 0000000000000000000000000000000000000000..ab8c10a7dc968221d90b8cd1e3c40592e3cc7e3a
--- /dev/null
+++ b/bsp/meta-hisilicon/conf/machine/include/hi309a.inc
@@ -0,0 +1,3 @@
+require conf/machine/include/hi3093.inc
+
+MACHINEOVERRIDES =. "hi309a:march64le:"
diff --git a/bsp/meta-hisilicon/recipes-core/images/bsp-hi309a.inc b/bsp/meta-hisilicon/recipes-core/images/bsp-hi309a.inc
new file mode 100644
index 0000000000000000000000000000000000000000..5f88912a05250e6210c72897819cf8338e6d20ab
--- /dev/null
+++ b/bsp/meta-hisilicon/recipes-core/images/bsp-hi309a.inc
@@ -0,0 +1 @@
+require recipes-core/images/bsp-hi3093.inc
diff --git a/bsp/meta-hisilicon/recipes-core/images/image-early-config-hi309a.inc b/bsp/meta-hisilicon/recipes-core/images/image-early-config-hi309a.inc
new file mode 100644
index 0000000000000000000000000000000000000000..4aa03b2b79d56eec232db171cb43429c7f6136f8
--- /dev/null
+++ b/bsp/meta-hisilicon/recipes-core/images/image-early-config-hi309a.inc
@@ -0,0 +1 @@
+require recipes-core/images/image-early-config-hi3093.inc
diff --git a/bsp/meta-hisilicon/recipes-core/images/image-hi309a.inc b/bsp/meta-hisilicon/recipes-core/images/image-hi309a.inc
new file mode 100644
index 0000000000000000000000000000000000000000..9b093ae198efa3412045d4616ef5098ad4dd70b4
--- /dev/null
+++ b/bsp/meta-hisilicon/recipes-core/images/image-hi309a.inc
@@ -0,0 +1 @@
+require recipes-core/images/image-hi3093.inc
diff --git a/bsp/meta-hisilicon/recipes-kernel/linux/linux-hi309a.inc b/bsp/meta-hisilicon/recipes-kernel/linux/linux-hi309a.inc
new file mode 100644
index 0000000000000000000000000000000000000000..579f168436f17123d7f4f7ed3634c1b885be2748
--- /dev/null
+++ b/bsp/meta-hisilicon/recipes-kernel/linux/linux-hi309a.inc
@@ -0,0 +1,4 @@
+require recipes-kernel/linux/linux-hi3093.inc
+
+# Use hi3093's defconfig temporarily
+OPENEULER_KERNEL_CONFIG = "file://config/hi3093/defconfig"
diff --git a/bsp/meta-hisilicon/recipes-kernel/linux/linux-openeuler-rt.bbappend b/bsp/meta-hisilicon/recipes-kernel/linux/linux-openeuler-rt.bbappend
index 942b6814de655d964ca4ce06eb3e6732f53eccca..82a367f4ad717ead733075c46b4fe0b2ad7b0da1 100644
--- a/bsp/meta-hisilicon/recipes-kernel/linux/linux-openeuler-rt.bbappend
+++ b/bsp/meta-hisilicon/recipes-kernel/linux/linux-openeuler-rt.bbappend
@@ -1,5 +1,5 @@
 # add COMPATIBLE_MACHINE
-COMPATIBLE_MACHINE = "hi3093|hieulerpi1"
+COMPATIBLE_MACHINE = "hi3093|hieulerpi1|hi309a"
 
 require recipes-kernel/linux/${@bb.utils.contains('DISTRO_FEATURES', 'mpu_solution', 'linux-hi3093-mpu.inc', 'linux-${MACHINE}.inc', d)}
 
diff --git a/bsp/meta-hisilicon/recipes-kernel/linux/linux-openeuler.bbappend b/bsp/meta-hisilicon/recipes-kernel/linux/linux-openeuler.bbappend
index 00fc692dd58ff1d5362273dccae2c21b90f80868..823fbee7484301cf751654afd626982d5b3bd693 100644
--- a/bsp/meta-hisilicon/recipes-kernel/linux/linux-openeuler.bbappend
+++ b/bsp/meta-hisilicon/recipes-kernel/linux/linux-openeuler.bbappend
@@ -1,4 +1,4 @@
 # add COMPATIBLE_MACHINE
-COMPATIBLE_MACHINE = "hi3093|hieulerpi1|hiedge1|hipico|3591rc"
+COMPATIBLE_MACHINE = "hi309a|hi3093|hieulerpi1|hiedge1|hipico|3591rc"
 
 require recipes-kernel/linux/${@bb.utils.contains('DISTRO_FEATURES', 'mpu_solution', 'linux-hi3093-mpu.inc', 'linux-${MACHINE}.inc', d)}