apm821xx: add support for the apm821xx device target

This adds a new target for PowerPC APM82181 and APM82161
(464-based) boards, as well as adds support for the booke-wdt
watchdog package.

Signed-off-by: Chris Blake <chrisrblake93@gmail.com>

14 files changed, 1177 insertions, 0 deletions

diff --git a/target/linux/apm821xx/Makefile b/target/linux/apm821xx/Makefile
new file mode 100644
index 0000000000..5c530d3ca6
--- /dev/null
+++ b/target/linux/apm821xx/Makefile
@@ -0,0 +1,28 @@
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+
+ARCH:=powerpc
+BOARD:=apm821xx
+BOARDNAME:=AppliedMicro APM821xx
+CPU_TYPE:=464fp
+FEATURES:=fpu dt gpio
+MAINTAINER:=Chris Blake <chrisrblake93@gmail.com>, \
+	    Christian Lamparter <chunkeey@gmail.com>
+
+KERNEL_PATCHVER:=4.4
+
+include $(INCLUDE_DIR)/target.mk
+
+KERNELNAME:=uImage
+
+DEFAULT_PACKAGES += \
+	kmod-leds-gpio kmod-i2c-core kmod-gpio-button-hotplug
+
+define Target/Description
+	Build images for AppliedMicro APM821xx based boards.
+endef
+
+$(eval $(call BuildTarget))
diff --git a/target/linux/apm821xx/base-files/etc/board.d/01_leds b/target/linux/apm821xx/base-files/etc/board.d/01_leds
new file mode 100755
index 0000000000..eab8b59142
--- /dev/null
+++ b/target/linux/apm821xx/base-files/etc/board.d/01_leds
@@ -0,0 +1,17 @@
+#!/bin/sh
+
+. /lib/functions/uci-defaults.sh
+. /lib/apm821xx.sh
+
+board_config_update
+
+board=$(apm821xx_board_name)
+
+case "$board" in
+*)
+	;;
+esac
+
+board_config_flush
+
+exit 0
diff --git a/target/linux/apm821xx/base-files/etc/board.d/02_network b/target/linux/apm821xx/base-files/etc/board.d/02_network
new file mode 100755
index 0000000000..7dbabec11d
--- /dev/null
+++ b/target/linux/apm821xx/base-files/etc/board.d/02_network
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+. /lib/functions/system.sh
+. /lib/functions/uci-defaults.sh
+. /lib/apm821xx.sh
+
+board_config_update
+
+board=$(apm821xx_board_name)
+
+case "$board" in
+*)
+	ucidef_set_interfaces_lan_wan "eth0" "eth1"
+	;;
+esac
+
+board_config_flush
+
+exit 0
diff --git a/target/linux/apm821xx/base-files/etc/diag.sh b/target/linux/apm821xx/base-files/etc/diag.sh
new file mode 100755
index 0000000000..4d6763879b
--- /dev/null
+++ b/target/linux/apm821xx/base-files/etc/diag.sh
@@ -0,0 +1,33 @@
+#!/bin/sh
+
+. /lib/functions/leds.sh
+. /lib/apm821xx.sh
+
+get_status_led() {
+	case $(apm821xx_board_name) in
+	*)
+		;;
+	esac
+}
+
+set_state() {
+	get_status_led
+
+	case "$1" in
+	preinit)
+		status_led_blink_preinit
+		;;
+
+	failsafe)
+		status_led_blink_failsafe
+		;;
+
+	preinit_regular)
+		status_led_blink_preinit_regular
+		;;
+
+	done)
+		status_led_on
+		;;
+	esac
+}
diff --git a/target/linux/apm821xx/base-files/etc/inittab b/target/linux/apm821xx/base-files/etc/inittab
new file mode 100644
index 0000000000..1885787477
--- /dev/null
+++ b/target/linux/apm821xx/base-files/etc/inittab
@@ -0,0 +1,4 @@
+::sysinit:/etc/init.d/rcS S boot
+::shutdown:/etc/init.d/rcS K shutdown
+::askconsole:/usr/libexec/login.sh
+ttyS0::askfirst:/usr/libexec/login.sh
diff --git a/target/linux/apm821xx/base-files/lib/apm821xx.sh b/target/linux/apm821xx/base-files/lib/apm821xx.sh
new file mode 100755
index 0000000000..8f15ced8ca
--- /dev/null
+++ b/target/linux/apm821xx/base-files/lib/apm821xx.sh
@@ -0,0 +1,36 @@
+#!/bin/sh
+
+APM821XX_BOARD_NAME=
+APM821XX_MODEL=
+
+apm821xx_board_detect() {
+	local model
+	local name
+
+	model=$(awk 'BEGIN{FS="[ \t]+:[ \t]"} /model/ {print $2}' /proc/cpuinfo)
+
+	case "$model" in
+	*)
+		name="unknown"
+		;;
+	esac
+
+	[ -z "$name" ] && name="unknown"
+
+	[ -z "$APM821XX_BOARD_NAME" ] && APM821XX_BOARD_NAME="$name"
+	[ -z "$APM821XX_MODEL" ] && APM821XX_MODEL="$model"
+
+	[ -e "/tmp/sysinfo/" ] || mkdir -p "/tmp/sysinfo/"
+
+	echo "$APM821XX_BOARD_NAME" > /tmp/sysinfo/board_name
+	echo "$APM821XX_MODEL" > /tmp/sysinfo/model
+}
+
+apm821xx_board_name() {
+	local name
+
+	[ -f /tmp/sysinfo/board_name ] && name=$(cat /tmp/sysinfo/board_name)
+	[ -z "$name" ] && name="unknown"
+
+	echo "$name"
+}
diff --git a/target/linux/apm821xx/base-files/lib/preinit/03_preinit_do_apm821xx.sh b/target/linux/apm821xx/base-files/lib/preinit/03_preinit_do_apm821xx.sh
new file mode 100644
index 0000000000..5675357533
--- /dev/null
+++ b/target/linux/apm821xx/base-files/lib/preinit/03_preinit_do_apm821xx.sh
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+do_apm821xx() {
+	. /lib/apm821xx.sh
+
+	apm821xx_board_detect
+}
+
+boot_hook_add preinit_main do_apm821xx
diff --git a/target/linux/apm821xx/base-files/lib/preinit/05_set_preinit_iface_apm821xx b/target/linux/apm821xx/base-files/lib/preinit/05_set_preinit_iface_apm821xx
new file mode 100644
index 0000000000..97ef6dc68f
--- /dev/null
+++ b/target/linux/apm821xx/base-files/lib/preinit/05_set_preinit_iface_apm821xx
@@ -0,0 +1,9 @@
+#!/bin/sh
+
+. /lib/apm821xx.sh
+
+apm821xx_set_preinit_iface() {
+	ifname=eth0
+}
+
+boot_hook_add preinit_main apm821xx_set_preinit_iface
diff --git a/target/linux/apm821xx/base-files/lib/upgrade/platform.sh b/target/linux/apm821xx/base-files/lib/upgrade/platform.sh
new file mode 100755
index 0000000000..2406113bad
--- /dev/null
+++ b/target/linux/apm821xx/base-files/lib/upgrade/platform.sh
@@ -0,0 +1,58 @@
+#!/bin/sh
+
+. /lib/apm821xx.sh
+
+PART_NAME=firmware
+RAMFS_COPY_DATA=/lib/apm821xx.sh
+
+platform_check_image() {
+	local board=$(apm821xx_board_name)
+
+	[ "$#" -gt 1 ] && return 1
+
+	case "$board" in
+	*)
+		;;
+	esac
+
+	echo "Sysupgrade is not yet supported on $board."
+	return 1
+}
+
+platform_pre_upgrade() {
+	local board=$(apm821xx_board_name)
+
+	case "$board" in
+	*)
+		;;
+	esac
+}
+
+platform_do_upgrade() {
+	local board=$(apm821xx_board_name)
+
+	case "$board" in
+	*)
+		default_do_upgrade "$ARGV"
+		;;
+	esac
+}
+
+platform_copy_config() {
+	local board=$(apm821xx_board_name)
+
+	case "$board" in
+	*)
+		;;
+	esac
+}
+
+disable_watchdog() {
+	killall watchdog
+	( ps | grep -v 'grep' | grep '/dev/watchdog' ) && {
+		echo 'Could not disable watchdog'
+		return 1
+	}
+}
+
+append sysupgrade_pre_upgrade disable_watchdog
diff --git a/target/linux/apm821xx/config-4.4 b/target/linux/apm821xx/config-4.4
new file mode 100644
index 0000000000..31235996c8
--- /dev/null
+++ b/target/linux/apm821xx/config-4.4
@@ -0,0 +1,328 @@
+# CONFIG_40x is not set
+CONFIG_44x=y
+CONFIG_4xx=y
+CONFIG_4xx_SOC=y
+# CONFIG_ADVANCED_OPTIONS is not set
+CONFIG_APM821xx=y
+# CONFIG_ARCHES is not set
+CONFIG_ARCH_DMA_ADDR_T_64BIT=y
+CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
+CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
+CONFIG_ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE=y
+CONFIG_ARCH_HAS_DMA_SET_COHERENT_MASK=y
+CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
+CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
+CONFIG_ARCH_HAS_ILOG2_U32=y
+CONFIG_ARCH_HAS_SG_CHAIN=y
+CONFIG_ARCH_HAS_WALK_MEMORY=y
+CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
+CONFIG_ARCH_HIBERNATION_POSSIBLE=y
+CONFIG_ARCH_MAY_HAVE_PC_FDC=y
+CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
+CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
+CONFIG_ARCH_PHYS_ADDR_T_64BIT=y
+# CONFIG_ARCH_RANDOM is not set
+CONFIG_ARCH_REQUIRE_GPIOLIB=y
+CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
+CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
+CONFIG_ARCH_SUPPORTS_UPROBES=y
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+CONFIG_ARCH_USE_BUILTIN_BSWAP=y
+CONFIG_ARCH_WANT_IPC_PARSE_VERSION=y
+CONFIG_ARCH_WANT_OPTIONAL_GPIOLIB=y
+CONFIG_AUDIT_ARCH=y
+# CONFIG_BAMBOO is not set
+CONFIG_BCH=y
+# CONFIG_BLUESTONE is not set
+CONFIG_BOOKE=y
+CONFIG_BOOKE_WDT=y
+CONFIG_BOUNCE=y
+# CONFIG_CANYONLANDS is not set
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_CLONE_BACKWARDS=y
+CONFIG_CMDLINE="rootfstype=squashfs noinitrd"
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CONSISTENT_SIZE=0x00200000
+CONFIG_CPU_BIG_ENDIAN=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE is not set
+CONFIG_CRC16=y
+CONFIG_CRYPTO_DEFLATE=y
+CONFIG_CRYPTO_DEV_PPC4XX=y
+CONFIG_CRYPTO_HASH=y
+CONFIG_CRYPTO_HASH2=y
+CONFIG_CRYPTO_HW=y
+CONFIG_CRYPTO_LZO=y
+CONFIG_CRYPTO_MD5_PPC=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_CRYPTO_SHA1_PPC=y
+CONFIG_CRYPTO_WORKQUEUE=y
+CONFIG_CRYPTO_XZ=y
+CONFIG_DECOMPRESS_GZIP=y
+# CONFIG_DEFAULT_UIMAGE is not set
+CONFIG_DTC=y
+# CONFIG_E200 is not set
+CONFIG_EARLY_PRINTK=y
+# CONFIG_EBONY is not set
+CONFIG_EDAC_ATOMIC_SCRUB=y
+CONFIG_EDAC_SUPPORT=y
+# CONFIG_EIGER is not set
+# CONFIG_EPAPR_BOOT is not set
+CONFIG_EXTRA_TARGETS="uImage"
+CONFIG_FREEZER=y
+# CONFIG_FSL_ULI1575 is not set
+CONFIG_GENERIC_ATOMIC64=y
+CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CMOS_UPDATE=y
+# CONFIG_GENERIC_CSUM is not set
+CONFIG_GENERIC_IO=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_IRQ_SHOW_LEVEL=y
+CONFIG_GENERIC_ISA_DMA=y
+CONFIG_GENERIC_MSI_IRQ=y
+CONFIG_GENERIC_NVRAM=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GENERIC_SMP_IDLE_THREAD=y
+CONFIG_GENERIC_STRNCPY_FROM_USER=y
+CONFIG_GENERIC_STRNLEN_USER=y
+# CONFIG_GENERIC_TBSYNC is not set
+CONFIG_GENERIC_TIME_VSYSCALL_OLD=y
+# CONFIG_GEN_RTC is not set
+# CONFIG_GE_FPGA is not set
+# CONFIG_GLACIER is not set
+CONFIG_GLOB=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_DEVRES=y
+CONFIG_GPIO_GENERIC=y
+CONFIG_GPIO_GENERIC_PLATFORM=y
+CONFIG_GPIO_SYSFS=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT_MAP=y
+# CONFIG_HAS_RAPIDIO is not set
+# CONFIG_HAVE_64BIT_ALIGNED_ACCESS is not set
+CONFIG_HAVE_ARCH_AUDITSYSCALL=y
+# CONFIG_HAVE_ARCH_BITREVERSE is not set
+CONFIG_HAVE_ARCH_JUMP_LABEL=y
+CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
+CONFIG_HAVE_ARCH_TRACEHOOK=y
+# CONFIG_HAVE_BOOTMEM_INFO_NODE is not set
+CONFIG_HAVE_BPF_JIT=y
+CONFIG_HAVE_DEBUG_KMEMLEAK=y
+CONFIG_HAVE_DEBUG_STACKOVERFLOW=y
+CONFIG_HAVE_DMA_API_DEBUG=y
+CONFIG_HAVE_DMA_ATTRS=y
+CONFIG_HAVE_DYNAMIC_FTRACE=y
+CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
+CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
+CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
+CONFIG_HAVE_FUNCTION_TRACER=y
+# CONFIG_HAVE_GENERIC_DMA_COHERENT is not set
+CONFIG_HAVE_GENERIC_RCU_GUP=y
+CONFIG_HAVE_IDE=y
+CONFIG_HAVE_IOREMAP_PROT=y
+CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
+CONFIG_HAVE_LATENCYTOP_SUPPORT=y
+CONFIG_HAVE_MEMBLOCK=y
+CONFIG_HAVE_MEMBLOCK_NODE_MAP=y
+CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
+CONFIG_HAVE_NET_DSA=y
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
+# CONFIG_HAVE_SETUP_PER_CPU_AREA is not set
+CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
+CONFIG_HW_RANDOM=y
+CONFIG_HW_RANDOM_PPC4XX=y
+CONFIG_HZ=1000
+# CONFIG_HZ_100 is not set
+CONFIG_HZ_1000=y
+CONFIG_HZ_PERIODIC=y
+CONFIG_I2C=y
+CONFIG_I2C_BOARDINFO=y
+CONFIG_I2C_CHARDEV=y
+CONFIG_I2C_IBM_IIC=y
+CONFIG_IBM_EMAC=y
+CONFIG_IBM_EMAC_EMAC4=y
+CONFIG_IBM_EMAC_POLL_WEIGHT=32
+CONFIG_IBM_EMAC_RGMII=y
+CONFIG_IBM_EMAC_RXB=128
+CONFIG_IBM_EMAC_RX_COPY_THRESHOLD=256
+CONFIG_IBM_EMAC_RX_SKB_HEADROOM=0
+CONFIG_IBM_EMAC_TAH=y
+CONFIG_IBM_EMAC_TXB=128
+# CONFIG_ICON is not set
+CONFIG_INITRAMFS_SOURCE=""
+# CONFIG_IOMMU_HELPER is not set
+# CONFIG_IPIC is not set
+CONFIG_IRQCHIP=y
+CONFIG_IRQ_DOMAIN=y
+CONFIG_IRQ_FORCED_THREADING=y
+CONFIG_IRQ_WORK=y
+CONFIG_ISA_DMA_API=y
+# CONFIG_KATMAI is not set
+CONFIG_KERNEL_START=0xc0000000
+CONFIG_LIBFDT=y
+CONFIG_LOWMEM_SIZE=0x30000000
+CONFIG_LZO_COMPRESS=y
+CONFIG_LZO_DECOMPRESS=y
+# CONFIG_MATH_EMULATION is not set
+CONFIG_MDIO_BOARDINFO=y
+# CONFIG_MMIO_NVRAM is not set
+CONFIG_MODULES_USE_ELF_RELA=y
+# CONFIG_MPIC is not set
+# CONFIG_MPIC_U3_HT_IRQS is not set
+# CONFIG_MPIC_WEIRD is not set
+CONFIG_MTD_CFI_ADV_OPTIONS=y
+# CONFIG_MTD_CFI_GEOMETRY is not set
+CONFIG_MTD_NAND=y
+CONFIG_MTD_NAND_BCH=y
+CONFIG_MTD_NAND_ECC=y
+CONFIG_MTD_NAND_ECC_BCH=y
+CONFIG_MTD_NAND_ECC_SMC=y
+CONFIG_MTD_NAND_NDFC=y
+# CONFIG_MTD_SPLIT is not set
+# CONFIG_MTD_SPLIT_FIRMWARE_NAME is not set
+# CONFIG_MTD_SPLIT_SQUASHFS_ROOT is not set
+# CONFIG_MTD_SPLIT_SUPPORT is not set
+# CONFIG_MTD_UBI is not set
+# CONFIG_MTD_UBI_BEB_LIMIT is not set
+# CONFIG_MTD_UBI_BLOCK is not set
+# CONFIG_MTD_UBI_FASTMAP is not set
+# CONFIG_MTD_UBI_GLUEBI is not set
+# CONFIG_MTD_UBI_WL_THRESHOLD is not set
+CONFIG_NEED_DMA_MAP_STATE=y
+# CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK is not set
+CONFIG_NEED_PER_CPU_KM=y
+CONFIG_NEED_SG_DMA_LENGTH=y
+# CONFIG_NONSTATIC_KERNEL is not set
+CONFIG_NOT_COHERENT_CACHE=y
+CONFIG_NO_BOOTMEM=y
+CONFIG_NR_IRQS=512
+CONFIG_OF=y
+CONFIG_OF_ADDRESS=y
+CONFIG_OF_ADDRESS_PCI=y
+CONFIG_OF_EARLY_FLATTREE=y
+CONFIG_OF_FLATTREE=y
+CONFIG_OF_GPIO=y
+CONFIG_OF_IRQ=y
+CONFIG_OF_MDIO=y
+CONFIG_OF_MTD=y
+CONFIG_OF_NET=y
+CONFIG_OF_PCI=y
+CONFIG_OF_PCI_IRQ=y
+CONFIG_OF_RESERVED_MEM=y
+CONFIG_OLD_SIGACTION=y
+CONFIG_OLD_SIGSUSPEND=y
+CONFIG_PAGE_OFFSET=0xc0000000
+CONFIG_PCI=y
+CONFIG_PCIEAER=y
+CONFIG_PCIEPORTBUS=y
+CONFIG_PCIE_PME=y
+CONFIG_PCI_BUS_ADDR_T_64BIT=y
+CONFIG_PCI_DISABLE_COMMON_QUIRKS=y
+CONFIG_PCI_DOMAINS=y
+CONFIG_PCI_MSI=y
+CONFIG_PGTABLE_LEVELS=2
+CONFIG_PHYLIB=y
+CONFIG_PHYSICAL_START=0x00000000
+CONFIG_PHYS_64BIT=y
+CONFIG_PHYS_ADDR_T_64BIT=y
+CONFIG_PM=y
+CONFIG_PM_AUTOSLEEP=y
+# CONFIG_PM_DEBUG is not set
+CONFIG_PM_SLEEP=y
+CONFIG_PM_WAKELOCKS=y
+CONFIG_PM_WAKELOCKS_GC=y
+CONFIG_PM_WAKELOCKS_LIMIT=100
+CONFIG_PPC=y
+CONFIG_PPC32=y
+# CONFIG_PPC44x_SIMPLE is not set
+CONFIG_PPC4xx_CPM=y
+CONFIG_PPC4xx_GPIO=y
+# CONFIG_PPC4xx_HSTA_MSI is not set
+# CONFIG_PPC4xx_MSI is not set
+CONFIG_PPC4xx_OCM=y
+# CONFIG_PPC4xx_PCI_EXPRESS is not set
+# CONFIG_PPC64 is not set
+# CONFIG_PPC_47x is not set
+# CONFIG_PPC_85xx is not set
+# CONFIG_PPC_8xx is not set
+# CONFIG_PPC_970_NAP is not set
+CONFIG_PPC_ADV_DEBUG_DACS=2
+CONFIG_PPC_ADV_DEBUG_DAC_RANGE=y
+CONFIG_PPC_ADV_DEBUG_DVCS=2
+CONFIG_PPC_ADV_DEBUG_IACS=4
+CONFIG_PPC_ADV_DEBUG_REGS=y
+# CONFIG_PPC_BOOK3S_32 is not set
+# CONFIG_PPC_CELL is not set
+# CONFIG_PPC_CELL_NATIVE is not set
+# CONFIG_PPC_COPRO_BASE is not set
+CONFIG_PPC_DCR=y
+# CONFIG_PPC_DCR_MMIO is not set
+CONFIG_PPC_DCR_NATIVE=y
+# CONFIG_PPC_DOORBELL is not set
+# CONFIG_PPC_EARLY_DEBUG is not set
+# CONFIG_PPC_EPAPR_HV_PIC is not set
+CONFIG_PPC_FPU=y
+# CONFIG_PPC_I8259 is not set
+# CONFIG_PPC_ICP_HV is not set
+# CONFIG_PPC_ICP_NATIVE is not set
+# CONFIG_PPC_ICS_RTAS is not set
+CONFIG_PPC_INDIRECT_PCI=y
+CONFIG_PPC_LIB_RHEAP=y
+CONFIG_PPC_MMU_NOHASH=y
+# CONFIG_PPC_MM_SLICES is not set
+# CONFIG_PPC_MPC106 is not set
+# CONFIG_PPC_MSI_BITMAP is not set
+# CONFIG_PPC_P7_NAP is not set
+CONFIG_PPC_PCI_CHOICE=y
+# CONFIG_PPC_RTAS is not set
+CONFIG_PPC_UDBG_16550=y
+CONFIG_PPC_WERROR=y
+# CONFIG_PPC_XICS is not set
+# CONFIG_PQ2ADS is not set
+CONFIG_PTE_64BIT=y
+# CONFIG_RAINIER is not set
+CONFIG_RAS=y
+# CONFIG_RCU_STALL_COMMON is not set
+CONFIG_RD_GZIP=y
+CONFIG_RWSEM_XCHGADD_ALGORITHM=y
+# CONFIG_SAM440EP is not set
+CONFIG_SCHED_HRTICK=y
+# CONFIG_SCHED_INFO is not set
+# CONFIG_SCSI_DMA is not set
+# CONFIG_SEQUOIA is not set
+CONFIG_SERIAL_8250_EXTENDED=y
+CONFIG_SERIAL_8250_FSL=y
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_SIMPLE_GPIO=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_SRCU=y
+# CONFIG_STRICT_MM_TYPECHECKS is not set
+CONFIG_SUSPEND=y
+CONFIG_SUSPEND_FREEZER=y
+# CONFIG_SWIOTLB is not set
+CONFIG_SYSCTL_EXCEPTION_TRACE=y
+# CONFIG_TAISHAN is not set
+CONFIG_TASK_SIZE=0xc0000000
+CONFIG_TICK_CPU_ACCOUNTING=y
+# CONFIG_UBIFS_FS is not set
+# CONFIG_UBIFS_FS_ADVANCED_COMPR is not set
+# CONFIG_UBIFS_FS_LZO is not set
+# CONFIG_UBIFS_FS_XZ is not set
+# CONFIG_UBIFS_FS_ZLIB is not set
+CONFIG_USB_SUPPORT=y
+CONFIG_VDSO32=y
+# CONFIG_WARP is not set
+CONFIG_WORD_SIZE=32
+# CONFIG_XILINX_SYSACE is not set
+# CONFIG_XILINX_VIRTEX440_GENERIC_BOARD is not set
+CONFIG_XZ_DEC_BCJ=y
+CONFIG_XZ_DEC_POWERPC=y
+# CONFIG_YOSEMITE is not set
+CONFIG_ZLIB_DEFLATE=y
+CONFIG_ZLIB_INFLATE=y
+# CONFIG_JFFS2_FS is not set
diff --git a/target/linux/apm821xx/image/Makefile b/target/linux/apm821xx/image/Makefile
new file mode 100644
index 0000000000..48ada70d3f
--- /dev/null
+++ b/target/linux/apm821xx/image/Makefile
@@ -0,0 +1,22 @@
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+include $(TOPDIR)/rules.mk
+include $(INCLUDE_DIR)/image.mk
+
+IMAGE_PROFILE:=$(if $(PROFILE),$(PROFILE),Default)
+
+DEVICE_VARS += DTS IMAGE_SIZE
+
+define Device/Default
+  BOARDNAME :=
+  DEVICE_PROFILE = $$(BOARDNAME)
+  PROFILES = Default $$(DEVICE_PROFILE)
+  KERNEL_DEPENDS = $$(wildcard ../dts/$$(DTS).dts)
+  KERNEL := kernel-bin | lzma | uImage lzma
+  KERNEL_INITRAMFS := kernel-bin | lzma | uImage lzma
+endef
+TARGET_DEVICES += Default
+
+$(eval $(call BuildImage))
diff --git a/target/linux/apm821xx/patches-4.4/001-crypto4xx-integrate-ppc4xx-rng-into-crypto4xx.patch b/target/linux/apm821xx/patches-4.4/001-crypto4xx-integrate-ppc4xx-rng-into-crypto4xx.patch
new file mode 100644
index 0000000000..b395f0f7a3
--- /dev/null
+++ b/target/linux/apm821xx/patches-4.4/001-crypto4xx-integrate-ppc4xx-rng-into-crypto4xx.patch
@@ -0,0 +1,507 @@
+From 5343e674f32fb82b7a80a24b5a84eee62d3fe624 Mon Sep 17 00:00:00 2001
+From: Christian Lamparter <chunkeey@googlemail.com>
+Date: Mon, 18 Apr 2016 12:57:41 +0200
+Subject: [PATCH] crypto4xx: integrate ppc4xx-rng into crypto4xx
+
+This patch integrates the ppc4xx-rng driver into the existing
+crypto4xx. This is because the true random number generator
+is controlled and part of the security core.
+
+Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
+Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
+---
+ drivers/char/hw_random/Kconfig          |  13 ---
+ drivers/char/hw_random/Makefile         |   1 -
+ drivers/char/hw_random/ppc4xx-rng.c     | 147 --------------------------------
+ drivers/crypto/Kconfig                  |   8 ++
+ drivers/crypto/amcc/Makefile            |   1 +
+ drivers/crypto/amcc/crypto4xx_core.c    |   7 +-
+ drivers/crypto/amcc/crypto4xx_core.h    |   4 +
+ drivers/crypto/amcc/crypto4xx_reg_def.h |   1 +
+ drivers/crypto/amcc/crypto4xx_trng.c    | 131 ++++++++++++++++++++++++++++
+ drivers/crypto/amcc/crypto4xx_trng.h    |  34 ++++++++
+ 10 files changed, 184 insertions(+), 163 deletions(-)
+ delete mode 100644 drivers/char/hw_random/ppc4xx-rng.c
+ create mode 100644 drivers/crypto/amcc/crypto4xx_trng.c
+ create mode 100644 drivers/crypto/amcc/crypto4xx_trng.h
+
+diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
+index c76a88d..ac51149 100644
+--- a/drivers/char/hw_random/Kconfig
++++ b/drivers/char/hw_random/Kconfig
+@@ -268,19 +268,6 @@ config HW_RANDOM_NOMADIK
+ 
+ 	  If unsure, say Y.
+ 
+-config HW_RANDOM_PPC4XX
+-	tristate "PowerPC 4xx generic true random number generator support"
+-	depends on PPC && 4xx
+-	default HW_RANDOM
+-	---help---
+-	 This driver provides the kernel-side support for the TRNG hardware
+-	 found in the security function of some PowerPC 4xx SoCs.
+-
+-	 To compile this driver as a module, choose M here: the
+-	 module will be called ppc4xx-rng.
+-
+-	 If unsure, say N.
+-
+ config HW_RANDOM_PSERIES
+ 	tristate "pSeries HW Random Number Generator support"
+ 	depends on PPC64 && IBMVIO
+diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile
+index e09305b..63022b4 100644
+--- a/drivers/char/hw_random/Makefile
++++ b/drivers/char/hw_random/Makefile
+@@ -22,7 +22,6 @@ obj-$(CONFIG_HW_RANDOM_TX4939) += tx4939-rng.o
+ obj-$(CONFIG_HW_RANDOM_MXC_RNGA) += mxc-rnga.o
+ obj-$(CONFIG_HW_RANDOM_OCTEON) += octeon-rng.o
+ obj-$(CONFIG_HW_RANDOM_NOMADIK) += nomadik-rng.o
+-obj-$(CONFIG_HW_RANDOM_PPC4XX) += ppc4xx-rng.o
+ obj-$(CONFIG_HW_RANDOM_PSERIES) += pseries-rng.o
+ obj-$(CONFIG_HW_RANDOM_POWERNV) += powernv-rng.o
+ obj-$(CONFIG_HW_RANDOM_EXYNOS)	+= exynos-rng.o
+diff --git a/drivers/char/hw_random/ppc4xx-rng.c b/drivers/char/hw_random/ppc4xx-rng.c
+deleted file mode 100644
+index c0db438..0000000
+--- a/drivers/char/hw_random/ppc4xx-rng.c
++++ /dev/null
+@@ -1,147 +0,0 @@
+-/*
+- * Generic PowerPC 44x RNG driver
+- *
+- * Copyright 2011 IBM Corporation
+- *
+- * This program is free software; you can redistribute it and/or modify it
+- * under the terms of the GNU General Public License as published by the
+- * Free Software Foundation; version 2 of the License.
+- */
+-
+-#include <linux/module.h>
+-#include <linux/kernel.h>
+-#include <linux/platform_device.h>
+-#include <linux/hw_random.h>
+-#include <linux/delay.h>
+-#include <linux/of_address.h>
+-#include <linux/of_platform.h>
+-#include <asm/io.h>
+-
+-#define PPC4XX_TRNG_DEV_CTRL 0x60080
+-
+-#define PPC4XX_TRNGE 0x00020000
+-#define PPC4XX_TRNG_CTRL 0x0008
+-#define PPC4XX_TRNG_CTRL_DALM 0x20
+-#define PPC4XX_TRNG_STAT 0x0004
+-#define PPC4XX_TRNG_STAT_B 0x1
+-#define PPC4XX_TRNG_DATA 0x0000
+-
+-#define MODULE_NAME "ppc4xx_rng"
+-
+-static int ppc4xx_rng_data_present(struct hwrng *rng, int wait)
+-{
+-	void __iomem *rng_regs = (void __iomem *) rng->priv;
+-	int busy, i, present = 0;
+-
+-	for (i = 0; i < 20; i++) {
+-		busy = (in_le32(rng_regs + PPC4XX_TRNG_STAT) & PPC4XX_TRNG_STAT_B);
+-		if (!busy || !wait) {
+-			present = 1;
+-			break;
+-		}
+-		udelay(10);
+-	}
+-	return present;
+-}
+-
+-static int ppc4xx_rng_data_read(struct hwrng *rng, u32 *data)
+-{
+-	void __iomem *rng_regs = (void __iomem *) rng->priv;
+-	*data = in_le32(rng_regs + PPC4XX_TRNG_DATA);
+-	return 4;
+-}
+-
+-static int ppc4xx_rng_enable(int enable)
+-{
+-	struct device_node *ctrl;
+-	void __iomem *ctrl_reg;
+-	int err = 0;
+-	u32 val;
+-
+-	/* Find the main crypto device node and map it to turn the TRNG on */
+-	ctrl = of_find_compatible_node(NULL, NULL, "amcc,ppc4xx-crypto");
+-	if (!ctrl)
+-		return -ENODEV;
+-
+-	ctrl_reg = of_iomap(ctrl, 0);
+-	if (!ctrl_reg) {
+-		err = -ENODEV;
+-		goto out;
+-	}
+-
+-	val = in_le32(ctrl_reg + PPC4XX_TRNG_DEV_CTRL);
+-
+-	if (enable)
+-		val |= PPC4XX_TRNGE;
+-	else
+-		val = val & ~PPC4XX_TRNGE;
+-
+-	out_le32(ctrl_reg + PPC4XX_TRNG_DEV_CTRL, val);
+-	iounmap(ctrl_reg);
+-
+-out:
+-	of_node_put(ctrl);
+-
+-	return err;
+-}
+-
+-static struct hwrng ppc4xx_rng = {
+-	.name = MODULE_NAME,
+-	.data_present = ppc4xx_rng_data_present,
+-	.data_read = ppc4xx_rng_data_read,
+-};
+-
+-static int ppc4xx_rng_probe(struct platform_device *dev)
+-{
+-	void __iomem *rng_regs;
+-	int err = 0;
+-
+-	rng_regs = of_iomap(dev->dev.of_node, 0);
+-	if (!rng_regs)
+-		return -ENODEV;
+-
+-	err = ppc4xx_rng_enable(1);
+-	if (err)
+-		return err;
+-
+-	out_le32(rng_regs + PPC4XX_TRNG_CTRL, PPC4XX_TRNG_CTRL_DALM);
+-	ppc4xx_rng.priv = (unsigned long) rng_regs;
+-
+-	err = hwrng_register(&ppc4xx_rng);
+-
+-	return err;
+-}
+-
+-static int ppc4xx_rng_remove(struct platform_device *dev)
+-{
+-	void __iomem *rng_regs = (void __iomem *) ppc4xx_rng.priv;
+-
+-	hwrng_unregister(&ppc4xx_rng);
+-	ppc4xx_rng_enable(0);
+-	iounmap(rng_regs);
+-
+-	return 0;
+-}
+-
+-static const struct of_device_id ppc4xx_rng_match[] = {
+-	{ .compatible = "ppc4xx-rng", },
+-	{ .compatible = "amcc,ppc460ex-rng", },
+-	{ .compatible = "amcc,ppc440epx-rng", },
+-	{},
+-};
+-MODULE_DEVICE_TABLE(of, ppc4xx_rng_match);
+-
+-static struct platform_driver ppc4xx_rng_driver = {
+-	.driver = {
+-		.name = MODULE_NAME,
+-		.of_match_table = ppc4xx_rng_match,
+-	},
+-	.probe = ppc4xx_rng_probe,
+-	.remove = ppc4xx_rng_remove,
+-};
+-
+-module_platform_driver(ppc4xx_rng_driver);
+-
+-MODULE_LICENSE("GPL");
+-MODULE_AUTHOR("Josh Boyer <jwboyer@linux.vnet.ibm.com>");
+-MODULE_DESCRIPTION("HW RNG driver for PPC 4xx processors");
+diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
+index 0a22ac7..12fd499 100644
+--- a/drivers/crypto/Kconfig
++++ b/drivers/crypto/Kconfig
+@@ -279,6 +279,14 @@ config CRYPTO_DEV_PPC4XX
+ 	help
+ 	  This option allows you to have support for AMCC crypto acceleration.
+ 
++config HW_RANDOM_PPC4XX
++	bool "PowerPC 4xx generic true random number generator support"
++	depends on CRYPTO_DEV_PPC4XX && HW_RANDOM
++	default y
++	---help---
++	 This option provides the kernel-side support for the TRNG hardware
++	 found in the security function of some PowerPC 4xx SoCs.
++
+ config CRYPTO_DEV_OMAP_SHAM
+ 	tristate "Support for OMAP MD5/SHA1/SHA2 hw accelerator"
+ 	depends on ARCH_OMAP2PLUS
+diff --git a/drivers/crypto/amcc/Makefile b/drivers/crypto/amcc/Makefile
+index 5c0c62b..b955399 100644
+--- a/drivers/crypto/amcc/Makefile
++++ b/drivers/crypto/amcc/Makefile
+@@ -1,2 +1,3 @@
+ obj-$(CONFIG_CRYPTO_DEV_PPC4XX) += crypto4xx.o
+ crypto4xx-y :=  crypto4xx_core.o crypto4xx_alg.o crypto4xx_sa.o
++crypto4xx-$(CONFIG_HW_RANDOM_PPC4XX) += crypto4xx_trng.o
+diff --git a/drivers/crypto/amcc/crypto4xx_core.c b/drivers/crypto/amcc/crypto4xx_core.c
+index 62134c8..dae1e39 100644
+--- a/drivers/crypto/amcc/crypto4xx_core.c
++++ b/drivers/crypto/amcc/crypto4xx_core.c
+@@ -40,6 +40,7 @@
+ #include "crypto4xx_reg_def.h"
+ #include "crypto4xx_core.h"
+ #include "crypto4xx_sa.h"
++#include "crypto4xx_trng.h"
+ 
+ #define PPC4XX_SEC_VERSION_STR			"0.5"
+ 
+@@ -1225,6 +1226,7 @@ static int crypto4xx_probe(struct platform_device *ofdev)
+ 	if (rc)
+ 		goto err_start_dev;
+ 
++	ppc4xx_trng_probe(core_dev);
+ 	return 0;
+ 
+ err_start_dev:
+@@ -1252,6 +1254,8 @@ static int crypto4xx_remove(struct platform_device *ofdev)
+ 	struct device *dev = &ofdev->dev;
+ 	struct crypto4xx_core_device *core_dev = dev_get_drvdata(dev);
+ 
++	ppc4xx_trng_remove(core_dev);
++
+ 	free_irq(core_dev->irq, dev);
+ 	irq_dispose_mapping(core_dev->irq);
+ 
+@@ -1272,7 +1276,7 @@ MODULE_DEVICE_TABLE(of, crypto4xx_match);
+ 
+ static struct platform_driver crypto4xx_driver = {
+ 	.driver = {
+-		.name = "crypto4xx",
++		.name = MODULE_NAME,
+ 		.of_match_table = crypto4xx_match,
+ 	},
+ 	.probe		= crypto4xx_probe,
+@@ -1284,4 +1288,3 @@ module_platform_driver(crypto4xx_driver);
+ MODULE_LICENSE("GPL");
+ MODULE_AUTHOR("James Hsiao <jhsiao@amcc.com>");
+ MODULE_DESCRIPTION("Driver for AMCC PPC4xx crypto accelerator");
+-
+diff --git a/drivers/crypto/amcc/crypto4xx_core.h b/drivers/crypto/amcc/crypto4xx_core.h
+index bac0bde..ecfdcfe 100644
+--- a/drivers/crypto/amcc/crypto4xx_core.h
++++ b/drivers/crypto/amcc/crypto4xx_core.h
+@@ -24,6 +24,8 @@
+ 
+ #include <crypto/internal/hash.h>
+ 
++#define MODULE_NAME "crypto4xx"
++
+ #define PPC460SX_SDR0_SRST                      0x201
+ #define PPC405EX_SDR0_SRST                      0x200
+ #define PPC460EX_SDR0_SRST                      0x201
+@@ -72,6 +74,7 @@ struct crypto4xx_device {
+ 	char *name;
+ 	u64  ce_phy_address;
+ 	void __iomem *ce_base;
++	void __iomem *trng_base;
+ 
+ 	void *pdr;			/* base address of packet
+ 					descriptor ring */
+@@ -106,6 +109,7 @@ struct crypto4xx_core_device {
+ 	struct device *device;
+ 	struct platform_device *ofdev;
+ 	struct crypto4xx_device *dev;
++	struct hwrng *trng;
+ 	u32 int_status;
+ 	u32 irq;
+ 	struct tasklet_struct tasklet;
+diff --git a/drivers/crypto/amcc/crypto4xx_reg_def.h b/drivers/crypto/amcc/crypto4xx_reg_def.h
+index 5f5fbc0..46fe57c 100644
+--- a/drivers/crypto/amcc/crypto4xx_reg_def.h
++++ b/drivers/crypto/amcc/crypto4xx_reg_def.h
+@@ -125,6 +125,7 @@
+ #define PPC4XX_INTERRUPT_CLR			0x3ffff
+ #define PPC4XX_PRNG_CTRL_AUTO_EN		0x3
+ #define PPC4XX_DC_3DES_EN			1
++#define PPC4XX_TRNG_EN				0x00020000
+ #define PPC4XX_INT_DESCR_CNT			4
+ #define PPC4XX_INT_TIMEOUT_CNT			0
+ #define PPC4XX_INT_CFG				1
+diff --git a/drivers/crypto/amcc/crypto4xx_trng.c b/drivers/crypto/amcc/crypto4xx_trng.c
+new file mode 100644
+index 0000000..677ca17
+--- /dev/null
++++ b/drivers/crypto/amcc/crypto4xx_trng.c
+@@ -0,0 +1,131 @@
++/*
++ * Generic PowerPC 44x RNG driver
++ *
++ * Copyright 2011 IBM Corporation
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License as published by the
++ * Free Software Foundation; version 2 of the License.
++ */
++
++#include <linux/module.h>
++#include <linux/kernel.h>
++#include <linux/interrupt.h>
++#include <linux/platform_device.h>
++#include <linux/hw_random.h>
++#include <linux/delay.h>
++#include <linux/of_address.h>
++#include <linux/of_platform.h>
++#include <linux/io.h>
++
++#include "crypto4xx_core.h"
++#include "crypto4xx_trng.h"
++#include "crypto4xx_reg_def.h"
++
++#define PPC4XX_TRNG_CTRL	0x0008
++#define PPC4XX_TRNG_CTRL_DALM	0x20
++#define PPC4XX_TRNG_STAT	0x0004
++#define PPC4XX_TRNG_STAT_B	0x1
++#define PPC4XX_TRNG_DATA	0x0000
++
++static int ppc4xx_trng_data_present(struct hwrng *rng, int wait)
++{
++	struct crypto4xx_device *dev = (void *)rng->priv;
++	int busy, i, present = 0;
++
++	for (i = 0; i < 20; i++) {
++		busy = (in_le32(dev->trng_base + PPC4XX_TRNG_STAT) &
++			PPC4XX_TRNG_STAT_B);
++		if (!busy || !wait) {
++			present = 1;
++			break;
++		}
++		udelay(10);
++	}
++	return present;
++}
++
++static int ppc4xx_trng_data_read(struct hwrng *rng, u32 *data)
++{
++	struct crypto4xx_device *dev = (void *)rng->priv;
++	*data = in_le32(dev->trng_base + PPC4XX_TRNG_DATA);
++	return 4;
++}
++
++static void ppc4xx_trng_enable(struct crypto4xx_device *dev, bool enable)
++{
++	u32 device_ctrl;
++
++	device_ctrl = readl(dev->ce_base + CRYPTO4XX_DEVICE_CTRL);
++	if (enable)
++		device_ctrl |= PPC4XX_TRNG_EN;
++	else
++		device_ctrl &= ~PPC4XX_TRNG_EN;
++	writel(device_ctrl, dev->ce_base + CRYPTO4XX_DEVICE_CTRL);
++}
++
++static const struct of_device_id ppc4xx_trng_match[] = {
++	{ .compatible = "ppc4xx-rng", },
++	{ .compatible = "amcc,ppc460ex-rng", },
++	{ .compatible = "amcc,ppc440epx-rng", },
++	{},
++};
++
++void ppc4xx_trng_probe(struct crypto4xx_core_device *core_dev)
++{
++	struct crypto4xx_device *dev = core_dev->dev;
++	struct device_node *trng = NULL;
++	struct hwrng *rng = NULL;
++	int err;
++
++	/* Find the TRNG device node and map it */
++	trng = of_find_matching_node(NULL, ppc4xx_trng_match);
++	if (!trng || !of_device_is_available(trng))
++		return;
++
++	dev->trng_base = of_iomap(trng, 0);
++	of_node_put(trng);
++	if (!dev->trng_base)
++		goto err_out;
++
++	rng = kzalloc(sizeof(*rng), GFP_KERNEL);
++	if (!rng)
++		goto err_out;
++
++	rng->name = MODULE_NAME;
++	rng->data_present = ppc4xx_trng_data_present;
++	rng->data_read = ppc4xx_trng_data_read;
++	rng->priv = (unsigned long) dev;
++	core_dev->trng = rng;
++	ppc4xx_trng_enable(dev, true);
++	out_le32(dev->trng_base + PPC4XX_TRNG_CTRL, PPC4XX_TRNG_CTRL_DALM);
++	err = devm_hwrng_register(core_dev->device, core_dev->trng);
++	if (err) {
++		ppc4xx_trng_enable(dev, false);
++		dev_err(core_dev->device, "failed to register hwrng (%d).\n",
++			err);
++		goto err_out;
++	}
++	return;
++
++err_out:
++	of_node_put(trng);
++	iounmap(dev->trng_base);
++	kfree(rng);
++	dev->trng_base = NULL;
++	core_dev->trng = NULL;
++}
++
++void ppc4xx_trng_remove(struct crypto4xx_core_device *core_dev)
++{
++	if (core_dev && core_dev->trng) {
++		struct crypto4xx_device *dev = core_dev->dev;
++
++		devm_hwrng_unregister(core_dev->device, core_dev->trng);
++		ppc4xx_trng_enable(dev, false);
++		iounmap(dev->trng_base);
++		kfree(core_dev->trng);
++	}
++}
++
++MODULE_ALIAS("ppc4xx_rng");
+diff --git a/drivers/crypto/amcc/crypto4xx_trng.h b/drivers/crypto/amcc/crypto4xx_trng.h
+new file mode 100644
+index 0000000..931d225
+--- /dev/null
++++ b/drivers/crypto/amcc/crypto4xx_trng.h
+@@ -0,0 +1,34 @@
++/**
++ * AMCC SoC PPC4xx Crypto Driver
++ *
++ * Copyright (c) 2008 Applied Micro Circuits Corporation.
++ * All rights reserved. James Hsiao <jhsiao@amcc.com>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
++ * GNU General Public License for more details.
++ *
++ * This file defines the security context
++ * associate format.
++ */
++
++#ifndef __CRYPTO4XX_TRNG_H__
++#define __CRYPTO4XX_TRNG_H__
++
++#ifdef CONFIG_HW_RANDOM_PPC4XX
++void ppc4xx_trng_probe(struct crypto4xx_core_device *core_dev);
++void ppc4xx_trng_remove(struct crypto4xx_core_device *core_dev);
++#else
++static inline void ppc4xx_trng_probe(
++	struct crypto4xx_device *dev __maybe_unused) { }
++static inline void ppc4xx_trng_remove(
++	struct crypto4xx_device *dev __maybe_unused) { }
++#endif
++
++#endif
+-- 
+2.8.1
+
diff --git a/target/linux/apm821xx/patches-4.4/300-fix-atheros-nics-on-apm82181.patch b/target/linux/apm821xx/patches-4.4/300-fix-atheros-nics-on-apm82181.patch
new file mode 100644
index 0000000000..b9e5fb07c6
--- /dev/null
+++ b/target/linux/apm821xx/patches-4.4/300-fix-atheros-nics-on-apm82181.patch
@@ -0,0 +1,51 @@
+--- a/arch/powerpc/sysdev/ppc4xx_pci.c	2016-05-30 17:23:34.543707092 +0200
++++ b/arch/powerpc/sysdev/ppc4xx_pci.c	2016-05-30 17:31:02.497707885 +0200
+@@ -1066,15 +1066,24 @@ static int __init apm821xx_pciex_init_po
+ 	u32 val;
+ 
+ 	/*
+-	 * Do a software reset on PCIe ports.
+-	 * This code is to fix the issue that pci drivers doesn't re-assign
+-	 * bus number for PCIE devices after Uboot
+-	 * scanned and configured all the buses (eg. PCIE NIC IntelPro/1000
+-	 * PT quad port, SAS LSI 1064E)
++	 * Only reset the PHY when no link is currently established.
++	 * This is for the Atheros PCIe board which has problems to establish
++	 * the link (again) after this PHY reset. All other currently tested
++	 * PCIe boards don't show this problem.
+ 	 */
+-
+-	mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x0);
+-	mdelay(10);
++	val = mfdcri(SDR0, port->sdr_base + PESDRn_LOOP);
++	if (!(val & 0x00001000)) {
++		/*
++		 * Do a software reset on PCIe ports.
++		 * This code is to fix the issue that pci drivers doesn't re-assign
++		 * bus number for PCIE devices after Uboot
++		 * scanned and configured all the buses (eg. PCIE NIC IntelPro/1000
++		 * PT quad port, SAS LSI 1064E)
++		 */
++
++		mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x0);
++		mdelay(10);
++	}
+ 
+ 	if (port->endpoint)
+ 		val = PTYPE_LEGACY_ENDPOINT << 20;
+@@ -1091,9 +1100,12 @@ static int __init apm821xx_pciex_init_po
+ 	mtdcri(SDR0, PESDR0_460EX_L0DRV, 0x00000130);
+ 	mtdcri(SDR0, PESDR0_460EX_L0CLK, 0x00000006);
+ 
+-	mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x10000000);
+-	mdelay(50);
+-	mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x30000000);
++	val = mfdcri(SDR0, port->sdr_base + PESDRn_LOOP);
++	if (!(val & 0x00001000)) {
++		mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x10000000);
++		mdelay(50);
++		mtdcri(SDR0, PESDR0_460EX_PHY_CTL_RST, 0x30000000);
++	}
+ 
+ 	mtdcri(SDR0, port->sdr_base + PESDRn_RCSSET,
+ 		mfdcri(SDR0, port->sdr_base + PESDRn_RCSSET) |
diff --git a/target/linux/apm821xx/patches-4.4/701-powerpc_ibm_apm82181_phyclk_fix.patch b/target/linux/apm821xx/patches-4.4/701-powerpc_ibm_apm82181_phyclk_fix.patch
new file mode 100644
index 0000000000..ec9de179a4
--- /dev/null
+++ b/target/linux/apm821xx/patches-4.4/701-powerpc_ibm_apm82181_phyclk_fix.patch
@@ -0,0 +1,56 @@
+diff --git a/drivers/net/ethernet/ibm/emac/core.c b/drivers/net/ethernet/ibm/emac/core.c
+index 5d7db6c..01bed2e 100644
+--- a/drivers/net/ethernet/ibm/emac/core.c
++++ b/drivers/net/ethernet/ibm/emac/core.c
+@@ -129,6 +129,7 @@ static inline void emac_report_timeout_error(struct emac_instance *dev,
+ {
+ 	if (emac_has_feature(dev, EMAC_FTR_440GX_PHY_CLK_FIX |
+ 				  EMAC_FTR_460EX_PHY_CLK_FIX |
++				  EMAC_FTR_APM821XX_PHY_CLK_FIX |
+ 				  EMAC_FTR_440EP_PHY_CLK_FIX))
+ 		DBG(dev, "%s" NL, error);
+ 	else if (net_ratelimit())
+@@ -146,6 +147,10 @@ static inline void emac_rx_clk_tx(struct emac_instance *dev)
+ 	if (emac_has_feature(dev, EMAC_FTR_440EP_PHY_CLK_FIX))
+ 		dcri_clrset(SDR0, SDR0_MFR,
+ 			    0, SDR0_MFR_ECS >> dev->cell_index);
++
++	if (emac_has_feature(dev, EMAC_FTR_APM821XX_PHY_CLK_FIX))
++                dcri_clrset(SDR0, SDR0_ETH_CFG,
++                        0, 0x00000100 >> dev->cell_index);
+ #endif
+ }
+ 
+@@ -155,6 +160,10 @@ static inline void emac_rx_clk_default(struct emac_instance *dev)
+ 	if (emac_has_feature(dev, EMAC_FTR_440EP_PHY_CLK_FIX))
+ 		dcri_clrset(SDR0, SDR0_MFR,
+ 			    SDR0_MFR_ECS >> dev->cell_index, 0);
++
++	if (emac_has_feature(dev, EMAC_FTR_APM821XX_PHY_CLK_FIX))
++		dcri_clrset(SDR0, SDR0_ETH_CFG,
++			    0x00000100 >> dev->cell_index, 0);
+ #endif
+ }
+ 
+@@ -2587,7 +2596,7 @@ static int emac_init_config(struct emac_instance *dev)
+ 		if (of_device_is_compatible(np, "ibm,emac-apm821xx")) {
+ 			dev->features |= (EMAC_APM821XX_REQ_JUMBO_FRAME_SIZE |
+ 					  EMAC_FTR_APM821XX_NO_HALF_DUPLEX |
+-					  EMAC_FTR_460EX_PHY_CLK_FIX);
++					  EMAC_FTR_APM821XX_PHY_CLK_FIX);
+ 		}
+ 	} else if (of_device_is_compatible(np, "ibm,emac4")) {
+ 		dev->features |= EMAC_FTR_EMAC4;
+diff --git a/drivers/net/ethernet/ibm/emac/core.h b/drivers/net/ethernet/ibm/emac/core.h
+index 93ae114..072176a 100644
+--- a/drivers/net/ethernet/ibm/emac/core.h
++++ b/drivers/net/ethernet/ibm/emac/core.h
+@@ -333,6 +333,8 @@ struct emac_instance {
+  */
+ #define EMAC_FTR_APM821XX_NO_HALF_DUPLEX	0x00001000
+ 
++#define EMAC_FTR_APM821XX_PHY_CLK_FIX	0x000002000
++
+ /* Right now, we don't quite handle the always/possible masks on the
+  * most optimal way as we don't have a way to say something like
+  * always EMAC4. Patches welcome.