meta-xilinx: Restructuring meta-xilinx to support multiple layers

As discussed previously on mailing list, we are proceeding with layer
restructuring. For rocko release we will have the following layers

meta-xilinx
        ->meta-xilinx-bsp (current meta-xilinx)
        ->meta-xilinx-contrib

In the subsequent releases we will add other layers from Xilinx
meta-xilinx
        ->meta-xilinx-bsp (current meta-xilinx)
        ->meta-petalinux
        ->meta-xilinx-tools
        ->meta-xilinx-contrib

This will provide one clone to get all the required meta layers from
Xilinx for a complete solution, and the users can blacklist any layer
which they don't want to use using bblayer.conf.
This will enables us to help our vendors/partners to add their reference
designs, board definitions etc.

Recipe changes :
 * Move reference design zybo-linux-bd.bb to meta-xilinx-contrib
 * Move kernel patches realted to zybo-linux-bd-zynq7 board to
   meta-xilinx-contrib
 * Update README

Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com>

1 files changed, 2 insertions, 82 deletions

diff --git a/README.md b/README.md
index c212085f..2a4d5489 100644
--- a/README.md
+++ b/README.md
@@ -1,84 +1,4 @@
-meta-xilinx
-===========
+Collection of layers to support Xilinx products
 
-This layer provides support for MicroBlaze, Zynq and ZynqMP.
-
-Additional documentation:
-
-* [Building](README.building.md)
-* [Booting](README.booting.md)
-
-Supported Boards/Machines
-=========================
-
-Boards/Machines supported by this layer:
-
-* MicroBlaze:
-  * [Xilinx ML605 (QEMU)](conf/machine/ml605-qemu-microblazeel.conf) - `ml605-qemu-microblazeel` (QEMU support)
-  * [Xilinx S3A DSP 1800 (QEMU)](conf/machine/s3adsp1800-qemu-microblazeeb.conf) - `s3adsp1800-qemu-microblazeeb` (QEMU support)
-  * [Xilinx KC705](conf/machine/kc705-microblazeel.conf) - `kc705-microblazeel`
-* Zynq:
-  * [Zynq (QEMU)](conf/machine/qemu-zynq7.conf) - `qemu-zynq7` (QEMU Support)
-  * [Xilinx ZC702](conf/machine/zc702-zynq7.conf) - `zc702-zynq7` (with QEMU support)
-  * [Xilinx ZC706](conf/machine/zc706-zynq7.conf) - `zc706-zynq7` (with QEMU support)
-  * [Avnet MicroZed](conf/machine/microzed-zynq7.conf) - `microzed-zynq7`
-  * [Avnet PicoZed](conf/machine/picozed-zynq7.conf) - `picozed-zynq7`
-  * [Avnet/Digilent ZedBoard](conf/machine/zedboard-zynq7.conf) - `zedboard-zynq7`
-  * [Digilent Zybo](conf/machine/zybo-zynq7.conf) - `zybo-zynq7`
-  * [Digilent Zybo Linux BD](conf/machine/zybo-linux-bd-zynq7.conf) - `zybo-linux-bd-zynq7`
-* ZynqMP:
-  * [Xilinx ZCU102](conf/machine/zcu102-zynqmp.conf) - `zcu102-zynqmp` (QEMU support)
-
-Additional information on Xilinx architectures can be found at:
-        http://www.xilinx.com/support/index.htm
-
-Maintainers, Mailing list, Patches
-==================================
-
-Please send any patches, pull requests, comments or questions for this layer to
-the [meta-xilinx mailing list](https://lists.yoctoproject.org/listinfo/meta-xilinx):
-
-        meta-xilinx@lists.yoctoproject.org
-
-Maintainers:
-
-        Nathan Rossi <nathan@nathanrossi.com>
-        Manjukumar Harthikote Matha <manjukumar.harthikote-matha@xilinx.com>
-
-Dependencies
-============
-
-This layer depends on:
-
-        URI: git://git.openembedded.org/bitbake
-
-        URI: git://git.openembedded.org/openembedded-core
-        layers: meta
-
-Recipe Licenses
-===============
-
-Due to licensing restrictions some recipes in this layer rely on closed source
-or restricted content provided by Xilinx. In order to use these recipes you must
-accept or agree to the licensing terms (e.g. EULA, Export Compliance, NDA,
-Redistribution, etc). This layer **does not enforce** any legal requirement, it
-is the **responsibility of the user** the ensure that they are in compliance
-with any licenses or legal requirements for content used.
-
-In order to use recipes that rely on restricted content the `xilinx` license
-flag must be white-listed in the build configuration (e.g. `local.conf`). This
-can be done on a per package basis:
-
-        LICENSE_FLAGS_WHITELIST += "xilinx_pmu-rom"
-
-or generally:
-
-        LICENSE_FLAGS_WHITELIST += "xilinx"
-
-Generally speaking Xilinx content that is provided as a restricted download
-cannot be obtained without a Xilinx account, in order to use this content you
-must first download it with your Xilinx account and place the downloaded content
-in the `downloads/` directory of your build or on a `PREMIRROR`. Attempting to
-fetch the content using bitbake will fail, indicating the URL from which to
-acquire the content.
+Please see the respective READMEs in the layer subdirectories