meta-xilinx: Update README with generic info

Update README with generic info like meta layers descriptions,
Release information and additional documentation.

Signed-off-by: Sandeep Gundlupet Raju <sandeep.gundlupet-raju@amd.com>
Signed-off-by: Mark Hatle <mark.hatle@amd.com>

1 files changed, 45 insertions, 2 deletions

diff --git a/README.md b/README.md
index 2a4d5489..af63d4a0 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,47 @@
-Collection of layers to support Xilinx products
+# meta-xilinx
 
-Please see the respective READMEs in the layer subdirectories
+Collection of layers to enable AMD Xilinx products.
 
+* **meta-microblaze**: layer containing the AMD Xilinx MicroBlaze architecture
+specific implementation, such as microblaze gcc tool and other tools.
+
+* **meta-xilinx-bsp**: layer containing the AMD Xilinx evaluation boards metadata
+such as eval boards machine configurations files, kernel configuration fragments,
+series configuration compiler(.scc) files etc.
+
+* **meta-xilinx-contrib**: layer containing contribution from open source developers
+for vendor specific boards which has AMD Xilinx devices or SoM's.
+
+* **meta-xilinx-core**: layer containing the AMD Xilinx hardware devices metadata
+such as tune files, generic, soc variant machine configurations, boot firmware
+components, kernel etc.
+
+* **meta-xilinx-standalone**: layer containing the AMD Xilinx Baremetal or
+Standalone Toolchains metadata to build baremetal firmware and applications.
+
+* **meta-xilinx-standalone-experimental**: layer containing metadata to build
+all the boot images using lopper and system device tree without using the
+meta-xilinx-tools layer.
+
+* **meta-xilinx-vendor**: layer containing 3rd party vendor boards machine
+configurations files, boot firmware, kernel configuration fragments, .scc files,
+device tree etc.
+
+> **See:** AMD Xilinx devices:
+        https://www.xilinx.com/products/silicon-devices.html
+
+> **Note:** For AMD Ryzen, EPYC and Opteron A1100 architectures see:
+    https://git.yoctoproject.org/meta-amd/tree/
+
+Please see the respective READMEs and docs in the layer subdirectories
+
+## Release Information
+
+Refer [AMD Xilinx Yocto wiki](https://xilinx-wiki.atlassian.net/wiki/spaces/A/pages/2613018625)
+page for release features, known issue and limitations.
+
+## Additional Documentation
+
+For more information about [Yocto Project](https://www.yoctoproject.org) see Yocto Project docs which can be found at:
+
+ * https://docs.yoctoproject.org/singleindex.html