[OE-core] [PATCH 1/2] scripts/runqemu: Add support for 'qemuzynq' machine

[Nathan Rossi]

* 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)

Signed-off-by: Nathan Rossi <nathan.rossi at xilinx.com>
---
 scripts/runqemu          |    6 +++++-
 scripts/runqemu-internal |   15 +++++++++++++++
 2 files changed, 20 insertions(+), 1 deletions(-)

diff --git a/scripts/runqemu b/scripts/runqemu
index f2eb2e1..01ef741 100755
--- a/scripts/runqemu
+++ b/scripts/runqemu
@@ -107,7 +107,8 @@ KVM_ENABLED="no"
 while true; do
     arg=${1}
     case "$arg" in
-        "qemux86" | "qemux86-64" | "qemuarm" | "qemumips" | "qemumipsel" | "qemumips64" | "qemush4"  | "qemuppc")
+        "qemux86" | "qemux86-64" | "qemuarm" | "qemumips" | "qemumipsel" | \
+        "qemumips64" | "qemush4"  | "qemuppc" | "qemuzynq")
             [ -z "$MACHINE" ] && MACHINE=$arg || \
                 error "conflicting MACHINE types [$MACHINE] and [$arg]"
             ;;
@@ -308,6 +309,9 @@ QEMUSH4_DEFAULT_FSTYPE=ext3
 QEMUPPC_DEFAULT_KERNEL=vmlinux-qemuppc.bin
 QEMUPPC_DEFAULT_FSTYPE=ext3
 
+QEMUZYNQ_DEFAULT_KERNEL=uImage
+QEMUZYNQ_DEFAULT_FSTYPE=cpio
+
 AKITA_DEFAULT_KERNEL=zImage-akita.bin
 AKITA_DEFAULT_FSTYPE=jffs2
 
diff --git a/scripts/runqemu-internal b/scripts/runqemu-internal
index 4f3ba7b..f156c4d 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"
-- 
1.7.5.4