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, 49 insertions, 0 deletions

diff --git a/meta-xilinx-bsp/conf/machine/include/machine-xilinx-qemu.inc b/meta-xilinx-bsp/conf/machine/include/machine-xilinx-qemu.inc
new file mode 100644
index 00000000..dd275f3b
--- /dev/null
+++ b/meta-xilinx-bsp/conf/machine/include/machine-xilinx-qemu.inc
@@ -0,0 +1,49 @@
+# This include is used to setup default QEMU and qemuboot config for meta-xilinx
+# machines.
+
+# depend on qemu-helper-native, which will depend on QEMU
+EXTRA_IMAGEDEPENDS += "qemu-helper-native"
+
+def qemu_default_dtb(d):
+    if d.getVar("IMAGE_BOOT_FILES", True):
+        dtbs = d.getVar("IMAGE_BOOT_FILES", True).split(" ")
+        # IMAGE_BOOT_FILES has extra renaming info in the format '<source>;<target>'
+        dtbs = [f.split(";")[0] for f in dtbs]
+        dtbs = [f for f in dtbs if f.endswith(".dtb")]
+        if len(dtbs) != 0:
+            return dtbs[0]
+    if d.getVar("KERNEL_DEVICETREE", True):
+        dtbs = d.getVar("KERNEL_DEVICETREE", True).split(" ")
+        dtbs = [os.path.basename(d) for d in dtbs]
+        if len(dtbs) != 0:
+            return d.getVar("KERNEL_IMAGETYPE", True) + "-" + dtbs[0]
+    return ""
+
+def qemu_default_serial(d):
+    if d.getVar("SERIAL_CONSOLE", True):
+        speed, console = d.getVar("SERIAL_CONSOLE", True).split(" ", 1)
+        # zynqmp uses earlycon and stdout (in dtb)
+        if "zynqmp" in d.getVar("MACHINEOVERRIDES", True).split(":"):
+            return ""
+        return "console=%s,%s earlyprintk" % (console, speed)
+    return ""
+
+def qemu_target_binary(d):
+    ta = d.getVar("TARGET_ARCH", True)
+    if ta == "microblazeeb":
+        ta = "microblaze"
+    elif ta == "arm":
+        ta = "aarch64"
+    return "qemu-system-%s" % ta
+
+def qemu_zynqmp_unhalt(d, multiarch):
+    if multiarch:
+        return "-global xlnx,zynqmp-boot.cpu-num=0 -global xlnx,zynqmp-boot.use-pmufw=true"
+    return "-device loader,addr=0xfd1a0104,data=0x8000000e,data-len=4 -device loader,addr=0xfd1a0104,data=0x8000000e,data-len=4"
+
+# For qemuboot, default setup across all machines in meta-xilinx
+QB_SYSTEM_NAME ?= "${@qemu_target_binary(d)}"
+QB_DEFAULT_FSTYPE ?= "cpio"
+QB_DTB ?= "${@qemu_default_dtb(d)}"
+QB_KERNEL_CMDLINE_APPEND ?= "${@qemu_default_serial(d)}"
+