arm64: add ARM 64-bits target

This target can be emulated using ARM's Foundation_V8 simulator
software or qemu-system-aarch64 using the command-line described in the
README file.

Signed-off-by: Florian Fainelli <florian@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43355 3c298f89-4303-0410-b956-a3cf2f4a3e73

6 files changed, 362 insertions, 0 deletions

diff --git a/target/linux/arm64/Makefile b/target/linux/arm64/Makefile
new file mode 100644
index 0000000000..a30430bb70
--- /dev/null
+++ b/target/linux/arm64/Makefile
@@ -0,0 +1,28 @@
+#
+# Copyright (C) 2014 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+
+ARCH:=aarch64
+BOARD:=arm64
+BOARDNAME:=ARMv8 multiplatform
+FEATURES:=fpu ramdisk
+CFLAGS:=-Os -pipe -fno-caller-saves
+MAINTAINER:=Florian Fainelli <florian@openwrt.org>
+
+KERNEL_PATCHVER:=3.14
+
+DEVICE_TYPE:=developerboard
+
+include $(INCLUDE_DIR)/target.mk
+
+define Target/Description
+	Build multi-platform images for the ARMv8 instruction set architecture
+endef
+
+KERNELNAME:=Image dtbs
+
+$(eval $(call BuildTarget))
diff --git a/target/linux/arm64/README b/target/linux/arm64/README
new file mode 100644
index 0000000000..0328ca1607
--- /dev/null
+++ b/target/linux/arm64/README
@@ -0,0 +1,13 @@
+This multi-platform ARMv8 target can be used either with ARM Ltd.'s Foundation_V8
+fast-model doing the following:
+
+Foundation_v8 --image bin/arm64-eglibc/openwrt-arm64-vexpress-foundation.axf
+
+or you can also use QEMU:
+
+qemu-system-aarch64 -machine virt -cpu cortex-a57 -machine type=virt -nographic \
+	-smp 1 -m 2048 \
+	-kernel bin/arm64-eglibc/openwrt-arm64-qemu-virt-initramfs.Image \
+	--append "console=ttyAMA0"
+
+and enjoy the system booting.
diff --git a/target/linux/arm64/base-files/etc/inittab b/target/linux/arm64/base-files/etc/inittab
new file mode 100644
index 0000000000..d9d571e8d9
--- /dev/null
+++ b/target/linux/arm64/base-files/etc/inittab
@@ -0,0 +1,5 @@
+::sysinit:/etc/init.d/rcS S boot
+::shutdown:/etc/init.d/rcS K shutdown
+tts/0::askfirst:/bin/ash --login
+ttyAMA0::askfirst:/bin/ash --login
+tty1::askfirst:/bin/ash --login
diff --git a/target/linux/arm64/config-default b/target/linux/arm64/config-default
new file mode 100644
index 0000000000..6c4209ba87
--- /dev/null
+++ b/target/linux/arm64/config-default
@@ -0,0 +1,232 @@
+CONFIG_64BIT=y
+CONFIG_ARCH_DMA_ADDR_T_64BIT=y
+CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
+CONFIG_ARCH_HAS_HOLES_MEMORYMODEL=y
+CONFIG_ARCH_HAS_TICK_BROADCAST=y
+# CONFIG_ARCH_NEEDS_CPU_IDLE_COUPLED is not set
+CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
+CONFIG_ARCH_REQUIRE_GPIOLIB=y
+CONFIG_ARCH_SELECT_MEMORY_MODEL=y
+CONFIG_ARCH_SPARSEMEM_DEFAULT=y
+CONFIG_ARCH_SPARSEMEM_ENABLE=y
+CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
+CONFIG_ARCH_VEXPRESS=y
+CONFIG_ARCH_WANT_COMPAT_IPC_PARSE_VERSION=y
+CONFIG_ARCH_WANT_FRAME_POINTERS=y
+CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
+CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
+CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
+# CONFIG_ARCH_XGENE is not set
+CONFIG_ARM64=y
+# CONFIG_ARM64_64K_PAGES is not set
+# CONFIG_ARM64_CPU_SUSPEND is not set
+CONFIG_ARM_AMBA=y
+CONFIG_ARM_ARCH_TIMER=y
+CONFIG_ARM_ARCH_TIMER_EVTSTREAM=y
+CONFIG_ARM_GIC=y
+# CONFIG_ARM_SP805_WATCHDOG is not set
+CONFIG_ATOMIC64_SELFTEST=y
+# CONFIG_BLK_CGROUP is not set
+CONFIG_BLK_DEV_SD=y
+CONFIG_BLOCK_COMPAT=y
+CONFIG_BSD_PROCESS_ACCT=y
+CONFIG_BSD_PROCESS_ACCT_V3=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+# CONFIG_CFS_BANDWIDTH is not set
+CONFIG_CGROUPS=y
+# CONFIG_CGROUP_CPUACCT is not set
+# CONFIG_CGROUP_DEVICE is not set
+# CONFIG_CGROUP_FREEZER is not set
+# CONFIG_CGROUP_NET_CLASSID is not set
+CONFIG_CGROUP_SCHED=y
+CONFIG_CLKDEV_LOOKUP=y
+CONFIG_CLKSRC_OF=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_CMDLINE="console=ttyAMA0"
+CONFIG_COMMON_CLK=y
+CONFIG_COMMON_CLK_VERSATILE=y
+CONFIG_COMMON_CLK_XGENE=y
+CONFIG_COMPAT=y
+CONFIG_COMPAT_BINFMT_ELF=y
+CONFIG_COMPAT_OLD_SIGACTION=y
+# CONFIG_CPUSETS is not set
+# CONFIG_CPU_BIG_ENDIAN is not set
+CONFIG_CPU_RMAP=y
+CONFIG_CRC16=y
+CONFIG_CRYPTO_CRC32C=y
+CONFIG_CRYPTO_HASH=y
+CONFIG_CRYPTO_HASH2=y
+CONFIG_CUSE=y
+CONFIG_DCACHE_WORD_ACCESS=y
+CONFIG_DEBUG_INFO=y
+CONFIG_DEFAULT_IOSCHED="noop"
+CONFIG_DEFAULT_NOOP=y
+CONFIG_DEVTMPFS=y
+CONFIG_DTC=y
+CONFIG_EARLY_PRINTK=y
+CONFIG_EXT2_FS=y
+CONFIG_EXT3_FS=y
+CONFIG_EXT4_FS=y
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAT_FS=y
+CONFIG_FB=y
+CONFIG_FB_ARMCLCD=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+CONFIG_FRAME_POINTER=y
+CONFIG_FS_MBCACHE=y
+CONFIG_FUSE_FS=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
+CONFIG_GENERIC_CSUM=y
+CONFIG_GENERIC_IO=y
+CONFIG_GENERIC_IOMAP=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_NET_UTILS=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_SCHED_CLOCK=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GENERIC_STRNCPY_FROM_USER=y
+CONFIG_GENERIC_STRNLEN_USER=y
+CONFIG_GENERIC_TIME_VSYSCALL=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_DEVRES=y
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
+CONFIG_HAVE_ARCH_JUMP_LABEL=y
+CONFIG_HAVE_ARCH_PFN_VALID=y
+CONFIG_HAVE_ARCH_TRACEHOOK=y
+CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
+# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
+CONFIG_HAVE_CLK=y
+CONFIG_HAVE_CLK_PREPARE=y
+CONFIG_HAVE_DEBUG_BUGVERBOSE=y
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
+CONFIG_HAVE_DMA_API_DEBUG=y
+CONFIG_HAVE_DMA_ATTRS=y
+CONFIG_HAVE_DMA_CONTIGUOUS=y
+CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
+CONFIG_HAVE_GENERIC_DMA_COHERENT=y
+CONFIG_HAVE_MEMBLOCK=y
+CONFIG_HAVE_MEMORY_PRESENT=y
+CONFIG_HAVE_NET_DSA=y
+CONFIG_HAVE_PATA_PLATFORM=y
+CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HAVE_UID16=y
+CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
+# CONFIG_HUGETLBFS is not set
+CONFIG_IKCONFIG=y
+CONFIG_IKCONFIG_PROC=y
+CONFIG_INITRAMFS_SOURCE=""
+CONFIG_IOMMU_HELPER=y
+# CONFIG_IOSCHED_DEADLINE is not set
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_BOOTP=y
+CONFIG_IP_PNP_DHCP=y
+# CONFIG_IP_PNP_RARP is not set
+CONFIG_IRQCHIP=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_WORK=y
+CONFIG_JBD=y
+CONFIG_JBD2=y
+CONFIG_LOCKD=y
+CONFIG_LOGO=y
+CONFIG_LOGO_LINUX_CLUT224=y
+# CONFIG_LOGO_LINUX_MONO is not set
+# CONFIG_LOGO_LINUX_VGA16 is not set
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_MMC=y
+CONFIG_MMC_ARMMMCI=y
+CONFIG_MODULES_USE_ELF_RELA=y
+# CONFIG_MTD_PHYSMAP_OF is not set
+CONFIG_MUTEX_SPIN_ON_OWNER=y
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEED_SG_DMA_LENGTH=y
+# CONFIG_NET_CLS_CGROUP is not set
+CONFIG_NET_FLOW_LIMIT=y
+CONFIG_NFS_FS=y
+CONFIG_NLS=y
+CONFIG_NLS_CODEPAGE_437=y
+CONFIG_NLS_ISO8859_1=y
+CONFIG_NO_BOOTMEM=y
+CONFIG_NO_HZ=y
+CONFIG_NO_HZ_COMMON=y
+CONFIG_NO_HZ_IDLE=y
+CONFIG_NO_IOPORT=y
+CONFIG_NR_CPUS=4
+CONFIG_OF=y
+CONFIG_OF_ADDRESS=y
+CONFIG_OF_EARLY_FLATTREE=y
+CONFIG_OF_FLATTREE=y
+CONFIG_OF_GPIO=y
+CONFIG_OF_IRQ=y
+CONFIG_OF_MTD=y
+CONFIG_OF_NET=y
+CONFIG_OLD_SIGSUSPEND3=y
+CONFIG_PAGEFLAGS_EXTENDED=y
+CONFIG_PERF_USE_VMALLOC=y
+CONFIG_PHYS_ADDR_T_64BIT=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_POSIX_MQUEUE_SYSCTL=y
+CONFIG_POWER_RESET=y
+# CONFIG_POWER_RESET_GPIO is not set
+CONFIG_POWER_RESET_VEXPRESS=y
+# CONFIG_POWER_RESET_XGENE is not set
+CONFIG_POWER_SUPPLY=y
+# CONFIG_PREEMPT_NONE is not set
+# CONFIG_PREEMPT_RCU is not set
+CONFIG_PREEMPT_VOLUNTARY=y
+CONFIG_PROFILING=y
+CONFIG_RCU_STALL_COMMON=y
+# CONFIG_RESOURCE_COUNTERS is not set
+CONFIG_RFS_ACCEL=y
+CONFIG_ROOT_NFS=y
+CONFIG_RPS=y
+# CONFIG_RT_GROUP_SCHED is not set
+CONFIG_SCHED_AUTOGROUP=y
+CONFIG_SCSI=y
+# CONFIG_SCSI_LOWLEVEL is not set
+# CONFIG_SCSI_PROC_FS is not set
+# CONFIG_SERIAL_AMBA_PL010 is not set
+CONFIG_SERIAL_AMBA_PL011=y
+CONFIG_SERIAL_AMBA_PL011_CONSOLE=y
+CONFIG_SMC91X=y
+CONFIG_SMP=y
+CONFIG_SPARSEMEM=y
+CONFIG_SPARSEMEM_EXTREME=y
+CONFIG_SPARSEMEM_MANUAL=y
+CONFIG_SPARSEMEM_VMEMMAP=y
+CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_STOP_MACHINE=y
+CONFIG_SUNRPC=y
+# CONFIG_SWAP is not set
+CONFIG_SWIOTLB=y
+CONFIG_SYSCTL_EXCEPTION_TRACE=y
+CONFIG_SYSVIPC_COMPAT=y
+CONFIG_SYS_SUPPORTS_HUGETLBFS=y
+CONFIG_TICK_CPU_ACCOUNTING=y
+CONFIG_TREE_RCU=y
+CONFIG_UID16=y
+CONFIG_VEXPRESS_CONFIG=y
+CONFIG_VFAT_FS=y
+CONFIG_VIRTIO=y
+CONFIG_VIRTIO_BLK=y
+# CONFIG_VIRTIO_CONSOLE is not set
+CONFIG_VIRTIO_MMIO=y
+# CONFIG_VIRTIO_MMIO_CMDLINE_DEVICES is not set
+# CONFIG_VIRTIO_NET is not set
+# CONFIG_WIRELESS is not set
+# CONFIG_WLAN is not set
+# CONFIG_XEN is not set
+CONFIG_XPS=y
+CONFIG_ZONE_DMA32=y
+CONFIG_ZONE_DMA_FLAG=0
diff --git a/target/linux/arm64/image/Makefile b/target/linux/arm64/image/Makefile
new file mode 100644
index 0000000000..23c26ceb4d
--- /dev/null
+++ b/target/linux/arm64/image/Makefile
@@ -0,0 +1,46 @@
+#
+# Copyright (C) 2010 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+include $(INCLUDE_DIR)/image.mk
+
+define Image/Prepare
+	-rm -rf $(KDIR)/linux-system.axf
+	cp $(LINUX_DIR)/arch/$(LINUX_KARCH)/boot/Image $(KDIR)/Image
+	$(MAKE) -C boot-wrapper clean
+	$(MAKE) -C boot-wrapper compile
+endef
+
+define Build/Clean
+	$(MAKE) -C boot-wrapper clean
+endef
+
+define Image/Build/QemuVirt
+	$(CP) $(KDIR)/Image $(BIN_DIR)/openwrt-$(BOARD)-qemu-virt.Image
+ifneq ($(CONFIG_TARGET_ROOTFS_INITRAMFS),)
+	$(CP) $(KDIR)/Image-initramfs $(BIN_DIR)/openwrt-$(BOARD)-qemu-virt-initramfs.Image
+endif
+endef
+
+define Image/Build/VexpressFoundation
+	$(CP) $(KDIR)/linux-system.axf $(BIN_DIR)/openwrt-$(BOARD)-vexpress-foundation.axf
+endef
+
+define Image/BuildKernel
+	$(call Image/Build/QemuVirt)
+	$(call Image/Build/VexpressFoundation)
+endef
+
+define Image/Build/squashfs
+	$(call prepare_generic_squashfs,$(KDIR)/root.squashfs)
+endef
+
+define Image/Build
+	$(call Image/Build/$(1))
+	dd if=$(KDIR)/root.$(1) of=$(BIN_DIR)/openwrt-$(BOARD)-root.$(1) bs=128k conv=sync
+endef
+
+$(eval $(call BuildImage))
diff --git a/target/linux/arm64/image/boot-wrapper/Makefile b/target/linux/arm64/image/boot-wrapper/Makefile
new file mode 100644
index 0000000000..cf58590545
--- /dev/null
+++ b/target/linux/arm64/image/boot-wrapper/Makefile
@@ -0,0 +1,38 @@
+#
+# Copyright (C) 2013 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=aarch64-boot-wrapper
+PKG_VERSION:=2013-01-10
+PKG_RELEASE:=$(PKG_SOURCE_VERSION)
+
+PKG_SOURCE_PROTO:=git
+PKG_SOURCE_URL:=git://git.kernel.org/pub/scm/linux/kernel/git/cmarinas/boot-wrapper-aarch64.git
+PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
+PKG_SOURCE_VERSION:=c51dde817b5ed5b8f741b67ac51bd67bd87b4a2a
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.gz
+PKG_MAINTAINER:=Florian Fainelli <florian@openwrt.org>
+
+include $(INCLUDE_DIR)/kernel.mk
+include $(INCLUDE_DIR)/package.mk
+include $(INCLUDE_DIR)/image.mk
+
+define Build/Compile
+	$(MAKE) -C $(PKG_BUILD_DIR) \
+		KERNEL="../Image" \
+		DTC="$(LINUX_DIR)/scripts/dtc/dtc" \
+		FDT_SRC="$(LINUX_DIR)/arch/$(LINUX_KARCH)/boot/dts/foundation-v8.dts" \
+		CROSS_COMPILE="$(TARGET_CROSS)" \
+		BOOTARGS="console=ttyAMA0 earlyprintk"
+endef
+
+define Build/InstallDev
+	$(CP) $(PKG_BUILD_DIR)/linux-system.axf $(KDIR)/linux-system.axf
+endef
+
+$(eval $(call Build/DefaultTargets))