+# Architecture
+BR2_powerpc=y
+BR2_powerpc_440=y
+
+# Filesystem
+# BR2_TARGET_ROOTFS_TAR is not set
+BR2_TARGET_ROOTFS_INITRAMFS=y
+
+# Lock to 4.0 headers to avoid breaking with newer kernels
+BR2_KERNEL_HEADERS_VERSION=y
+BR2_DEFAULT_KERNEL_VERSION="4.0"
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_4_0=y
+
+# Use soft float
+BR2_SOFT_FLOAT=y
+
+# Kernel
+BR2_LINUX_KERNEL=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION=y
+BR2_LINUX_KERNEL_CUSTOM_VERSION_VALUE="4.0"
+BR2_LINUX_KERNEL_USE_CUSTOM_CONFIG=y
+BR2_LINUX_KERNEL_CUSTOM_CONFIG_FILE="board/qemu/ppc-virtex-ml507/linux-4.0.config"
+BR2_LINUX_KERNEL_VMLINUX=y
+BR2_LINUX_KERNEL_DTS_SUPPORT=y
+BR2_LINUX_KERNEL_INTREE_DTS_NAME="virtex440-ml507"