scripts/runqemu: Add support for 'qemuzynq' machine

* Add support to boot the 'qemuzynq' machine in qemu-system-arm
* Use the specific machine model for Zynq 'xilinx-zynq-a9'
* Use the DTB generated from the kernel build as the DTB for boot
* Force use of initrd rootfs (either in ext or cpio formats)

(From OE-Core rev: 1e4b1d95e1f47654e928f38cd091ffe272689844)

Signed-off-by: Nathan Rossi <nathan.rossi@xilinx.com>
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/scripts/runqemu-internal b/scripts/runqemu-internal
index 4f3ba7b882..f156c4dae5 100755
--- a/scripts/runqemu-internal
+++ b/scripts/runqemu-internal
@@ -59,6 +59,9 @@ else
         "qemush4")
             mem_size=1024
             ;;
+        "qemuzynq")
+            mem_size=1024
+            ;;
         *)
             mem_size=64
             ;;
@@ -270,6 +273,7 @@ case "$MACHINE" in
     "qemuarmv7") ;;
     "qemux86") ;;
     "qemux86-64") ;;
+    "qemuzynq") ;;
     "akita") ;;
     "spitz") ;;
     *)
@@ -492,6 +496,17 @@ if [ "$MACHINE" = "akita" ]; then
     fi
 fi
 
+if [ "$MACHINE" = "qemuzynq" ]; then
+    QEMU=qemu-system-arm
+    QEMU_SYSTEM_OPTIONS="-M xilinx-zynq-a9 -serial null -serial mon:stdio -dtb $KERNEL-$MACHINE.dtb"
+    # zynq serial ports are named 'ttyPS0' and 'ttyPS1', fixup the default values
+    SCRIPT_KERNEL_OPT=$(echo "$SCRIPT_KERNEL_OPT" | sed 's/console=ttyS/console=ttyPS/g')
+    if [ "${FSTYPE:0:3}" = "ext" -o "${FSTYPE:0:4}" = "cpio" ]; then
+        KERNCMDLINE="earlyprintk root=/dev/ram rw"
+        QEMUOPTIONS="$QEMU_SYSTEM_OPTIONS -initrd $ROOTFS"
+    fi
+fi
+
 if [ "x$RAMFS" = "xtrue" ]; then
     QEMUOPTIONS="-initrd $ROOTFS -nographic"
     KERNCMDLINE="root=/dev/ram0 debugshell"