[PATCH] Added preliminary support for Netstal HCU4 board

[PATCH] Added preliminary support for Netstal HCU4 board

[Niklaus Giger]

Adds preliminary support for a HCU4 PPC405GPr based board from
Netstal Maschinen AG.

For the last 3 years I have been the only user running Linux on this board, 
but it served me well as testbed for the xenomai realtime extension to the 
Linux kernel.

Patch against the  git://www.denx.de/git/linux-2.6-denx.git

Signed-off-by: Niklaus Giger <niklaus.giger@member.fsf.org>
---
 arch/powerpc/boot/dts/hcu4.dts          |  175 ++++++
 arch/powerpc/configs/40x/hcu4_defconfig |  929 +++++++++++++++++++++++++++++++
 arch/powerpc/platforms/40x/Kconfig      |    8 +
 arch/powerpc/platforms/40x/Makefile     |    1 +
 arch/powerpc/platforms/40x/hcu4.c       |   61 ++
 arch/ppc/platforms/4xx/hcu4.h           |   43 ++
 include/asm-ppc/ibm4xx.h                |    4 +
 7 files changed, 1221 insertions(+), 0 deletions(-)
 create mode 100644 arch/powerpc/boot/dts/hcu4.dts
 create mode 100644 arch/powerpc/configs/40x/hcu4_defconfig
 create mode 100644 arch/powerpc/platforms/40x/hcu4.c
 create mode 100644 arch/ppc/platforms/4xx/hcu4.h

diff --git a/arch/powerpc/boot/dts/hcu4.dts b/arch/powerpc/boot/dts/hcu4.dts
new file mode 100644
index 0000000..a954165
--- /dev/null
+++ b/arch/powerpc/boot/dts/hcu4.dts
@@ -0,0 +1,175 @@
+/*
+ * Device Tree Source for Netstal Maschinen HCU4
+ * based on the IBM Walnut
+ *
+ * Copyright 2008
+ * Niklaus Giger <niklaus.giger@member.fsf.org>
+ *
+ * Copyright 2007 IBM Corp.
+ * Josh Boyer <jwboyer@linux.vnet.ibm.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without
+ * any warranty of any kind, whether express or implied.
+ */
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+	model = "ibm,hcu4";
+	compatible = "ibm,hcu4";
+	dcr-parent = <&/cpus/cpu@0>;
+
+	aliases {
+		ethernet0 = &EMAC;
+		serial0 = &UART0;
+	};
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			model = "PowerPC,405GPr";
+			reg = <0>;
+			clock-frequency = <bebc200>; /* Filled in by zImage */
+			timebase-frequency = <0>; /* Filled in by zImage */
+			i-cache-line-size = <20>;
+			d-cache-line-size = <20>;
+			i-cache-size = <4000>;
+			d-cache-size = <4000>;
+			dcr-controller;
+			dcr-access-method = "native";
+		};
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0 0>; /* Filled in by zImage */
+	};
+
+	UIC0: interrupt-controller {
+		compatible = "ibm,uic";
+		interrupt-controller;
+		cell-index = <0>;
+		dcr-reg = <0c0 9>;
+		#address-cells = <0>;
+		#size-cells = <0>;
+		#interrupt-cells = <2>;
+	};
+
+	plb {
+		compatible = "ibm,plb3";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+		clock-frequency = <0>; /* Filled in by zImage */
+
+		SDRAM0: memory-controller {
+			compatible = "ibm,sdram-405gp";
+			dcr-reg = <010 2>;
+		};
+
+		MAL: mcmal {
+			compatible = "ibm,mcmal-405gp", "ibm,mcmal";
+			dcr-reg = <180 62>;
+			num-tx-chans = <1>;
+			num-rx-chans = <1>;
+			interrupt-parent = <&UIC0>;
+			interrupts = <
+				b 4 /* TXEOB */
+				c 4 /* RXEOB */
+				a 4 /* SERR */
+				d 4 /* TXDE */
+				e 4 /* RXDE */>;
+		};
+
+		POB0: opb {
+			compatible = "ibm,opb-405gp", "ibm,opb";
+			#address-cells = <1>;
+			#size-cells = <1>;
+			ranges = <ef600000 ef600000 a00000>;
+			dcr-reg = <0a0 5>;
+			clock-frequency = <0>; /* Filled in by zImage */
+
+			UART0: serial@ef600300 {
+				device_type = "serial";
+				compatible = "ns16550";
+				reg = <ef600300 8>;
+				virtual-reg = <ef600300>;
+				clock-frequency = <0>; /* Filled in by zImage */
+				current-speed = <2580>;
+				interrupt-parent = <&UIC0>;
+				interrupts = <0 4>;
+			};
+
+			IIC: i2c@ef600500 {
+				compatible = "ibm,iic-405gp", "ibm,iic";
+				reg = <ef600500 11>;
+				interrupt-parent = <&UIC0>;
+				interrupts = <2 4>;
+			};
+
+			GPIO: gpio@ef600700 {
+				compatible = "ibm,gpio-405gp";
+				reg = <ef600700 20>;
+			};
+
+			EMAC: ethernet@ef600800 {
+				device_type = "network";
+				compatible = "ibm,emac-405gp", "ibm,emac";
+				interrupt-parent = <&UIC0>;
+				interrupts = <
+					f 4 /* Ethernet */
+					9 4 /* Ethernet Wake Up */>;
+				local-mac-address = [000000000000]; /* Filled in by zImage */
+				reg = <ef600800 70>;
+				mal-device = <&MAL>;
+				mal-tx-channel = <0>;
+				mal-rx-channel = <0>;
+				cell-index = <0>;
+				max-frame-size = <5dc>;
+				rx-fifo-size = <1000>;
+				tx-fifo-size = <800>;
+				phy-mode = "rmii";
+				phy-map = <00000001>;
+			};
+
+		};
+
+		EBC0: ebc {
+			compatible = "ibm,ebc-405gp", "ibm,ebc";
+			dcr-reg = <012 2>;
+			#address-cells = <2>;
+			#size-cells = <1>;
+			/* The ranges property is supplied by the bootwrapper
+			 * and is based on the firmware's configuration of the
+			 * EBC bridge
+			 */
+			clock-frequency = <0>; /* Filled in by zImage */
+
+			sram@0,0 {
+				reg = <0 0 80000>;
+			};
+
+			flash@0,80000 {
+				compatible = "jedec-flash";
+				bank-width = <1>;
+				reg = <0 80000 80000>;
+				#address-cells = <1>;
+				#size-cells = <1>;
+				partition@0 {
+					label = "OpenBIOS";
+					reg = <0 80000>;
+					read-only;
+				};
+			};
+
+		};
+	};
+
+	chosen {
+		linux,stdout-path = "/plb/opb/serial@ef600300";
+	};
+};
diff --git a/arch/powerpc/configs/40x/hcu4_defconfig 
b/arch/powerpc/configs/40x/hcu4_defconfig
new file mode 100644
index 0000000..682fce0
--- /dev/null
+++ b/arch/powerpc/configs/40x/hcu4_defconfig
@@ -0,0 +1,929 @@
+#
+# Automatically generated make config: don't edit
+# Linux kernel version: 2.6.26.5
+# Tue Sep 16 00:44:33 2008
+#
+# CONFIG_PPC64 is not set
+
+#
+# Processor support
+#
+# CONFIG_6xx is not set
+# CONFIG_PPC_85xx is not set
+# CONFIG_PPC_8xx is not set
+CONFIG_40x=y
+# CONFIG_44x is not set
+# CONFIG_E200 is not set
+CONFIG_4xx=y
+# CONFIG_PPC_MM_SLICES is not set
+CONFIG_NOT_COHERENT_CACHE=y
+CONFIG_PPC32=y
+CONFIG_WORD_SIZE=32
+CONFIG_PPC_MERGE=y
+CONFIG_MMU=y
+CONFIG_GENERIC_CMOS_UPDATE=y
+CONFIG_GENERIC_TIME=y
+CONFIG_GENERIC_TIME_VSYSCALL=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_HARDIRQS=y
+# CONFIG_HAVE_SETUP_PER_CPU_AREA is not set
+CONFIG_IRQ_PER_CPU=y
+CONFIG_STACKTRACE_SUPPORT=y
+CONFIG_LOCKDEP_SUPPORT=y
+CONFIG_RWSEM_XCHGADD_ALGORITHM=y
+CONFIG_ARCH_HAS_ILOG2_U32=y
+CONFIG_GENERIC_HWEIGHT=y
+CONFIG_GENERIC_CALIBRATE_DELAY=y
+CONFIG_GENERIC_FIND_NEXT_BIT=y
+# CONFIG_ARCH_NO_VIRT_TO_BUS is not set
+CONFIG_PPC=y
+CONFIG_EARLY_PRINTK=y
+CONFIG_GENERIC_NVRAM=y
+CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
+CONFIG_ARCH_MAY_HAVE_PC_FDC=y
+CONFIG_PPC_OF=y
+CONFIG_OF=y
+CONFIG_PPC_UDBG_16550=y
+# CONFIG_GENERIC_TBSYNC is not set
+CONFIG_AUDIT_ARCH=y
+CONFIG_GENERIC_BUG=y
+# CONFIG_DEFAULT_UIMAGE is not set
+CONFIG_PPC_DCR_NATIVE=y
+# CONFIG_PPC_DCR_MMIO is not set
+CONFIG_PPC_DCR=y
+CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"
+
+#
+# General setup
+#
+CONFIG_EXPERIMENTAL=y
+CONFIG_BROKEN_ON_SMP=y
+CONFIG_INIT_ENV_ARG_LIMIT=32
+CONFIG_LOCALVERSION=""
+CONFIG_LOCALVERSION_AUTO=y
+CONFIG_SWAP=y
+CONFIG_SYSVIPC=y
+CONFIG_SYSVIPC_SYSCTL=y
+CONFIG_POSIX_MQUEUE=y
+# CONFIG_BSD_PROCESS_ACCT is not set
+# CONFIG_TASKSTATS is not set
+# CONFIG_AUDIT is not set
+# CONFIG_IKCONFIG is not set
+CONFIG_LOG_BUF_SHIFT=14
+# CONFIG_CGROUPS is not set
+CONFIG_GROUP_SCHED=y
+CONFIG_FAIR_GROUP_SCHED=y
+# CONFIG_RT_GROUP_SCHED is not set
+CONFIG_USER_SCHED=y
+# CONFIG_CGROUP_SCHED is not set
+CONFIG_SYSFS_DEPRECATED=y
+CONFIG_SYSFS_DEPRECATED_V2=y
+# CONFIG_RELAY is not set
+# CONFIG_NAMESPACES is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_INITRAMFS_SOURCE=""
+# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
+CONFIG_SYSCTL=y
+CONFIG_EMBEDDED=y
+CONFIG_SYSCTL_SYSCALL=y
+CONFIG_SYSCTL_SYSCALL_CHECK=y
+CONFIG_KALLSYMS=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_KALLSYMS_EXTRA_PASS=y
+CONFIG_HOTPLUG=y
+CONFIG_PRINTK=y
+# CONFIG_LOGBUFFER is not set
+CONFIG_BUG=y
+CONFIG_ELF_CORE=y
+CONFIG_COMPAT_BRK=y
+CONFIG_BASE_FULL=y
+CONFIG_FUTEX=y
+CONFIG_ANON_INODES=y
+CONFIG_EPOLL=y
+CONFIG_SIGNALFD=y
+CONFIG_TIMERFD=y
+CONFIG_EVENTFD=y
+CONFIG_SHMEM=y
+CONFIG_VM_EVENT_COUNTERS=y
+CONFIG_SLUB_DEBUG=y
+# CONFIG_SLAB is not set
+CONFIG_SLUB=y
+# CONFIG_SLOB is not set
+# CONFIG_PROFILING is not set
+# CONFIG_MARKERS is not set
+CONFIG_HAVE_OPROFILE=y
+# CONFIG_KPROBES is not set
+CONFIG_HAVE_KPROBES=y
+CONFIG_HAVE_KRETPROBES=y
+# CONFIG_HAVE_DMA_ATTRS is not set
+CONFIG_PROC_PAGE_MONITOR=y
+CONFIG_SLABINFO=y
+CONFIG_RT_MUTEXES=y
+# CONFIG_TINY_SHMEM is not set
+CONFIG_BASE_SMALL=0
+CONFIG_MODULES=y
+# CONFIG_MODULE_FORCE_LOAD is not set
+CONFIG_MODULE_UNLOAD=y
+# CONFIG_MODULE_FORCE_UNLOAD is not set
+# CONFIG_MODVERSIONS is not set
+# CONFIG_MODULE_SRCVERSION_ALL is not set
+CONFIG_KMOD=y
+CONFIG_BLOCK=y
+CONFIG_LBD=y
+# CONFIG_BLK_DEV_IO_TRACE is not set
+# CONFIG_LSF is not set
+# CONFIG_BLK_DEV_BSG is not set
+
+#
+# IO Schedulers
+#
+CONFIG_IOSCHED_NOOP=y
+CONFIG_IOSCHED_AS=y
+CONFIG_IOSCHED_DEADLINE=y
+CONFIG_IOSCHED_CFQ=y
+CONFIG_DEFAULT_AS=y
+# CONFIG_DEFAULT_DEADLINE is not set
+# CONFIG_DEFAULT_CFQ is not set
+# CONFIG_DEFAULT_NOOP is not set
+CONFIG_DEFAULT_IOSCHED="anticipatory"
+CONFIG_CLASSIC_RCU=y
+# CONFIG_PPC4xx_PCI_EXPRESS is not set
+
+#
+# Platform support
+#
+# CONFIG_PPC_MPC512x is not set
+# CONFIG_PPC_MPC5121 is not set
+# CONFIG_PPC_CELL is not set
+# CONFIG_PPC_CELL_NATIVE is not set
+# CONFIG_PQ2ADS is not set
+# CONFIG_EP405 is not set
+CONFIG_HCU4=y
+# CONFIG_KILAUEA is not set
+# CONFIG_MAKALU is not set
+# CONFIG_WALNUT is not set
+# CONFIG_XILINX_VIRTEX_GENERIC_BOARD is not set
+# CONFIG_IPIC is not set
+# CONFIG_MPIC is not set
+# CONFIG_MPIC_WEIRD is not set
+# CONFIG_PPC_I8259 is not set
+# CONFIG_PPC_RTAS is not set
+# CONFIG_MMIO_NVRAM is not set
+# CONFIG_PPC_MPC106 is not set
+# CONFIG_PPC_970_NAP is not set
+# CONFIG_PPC_INDIRECT_IO is not set
+# CONFIG_GENERIC_IOMAP is not set
+# CONFIG_CPU_FREQ is not set
+# CONFIG_FSL_ULI1575 is not set
+
+#
+# Kernel options
+#
+# CONFIG_HIGHMEM is not set
+# CONFIG_TICK_ONESHOT is not set
+# CONFIG_NO_HZ is not set
+# CONFIG_HIGH_RES_TIMERS is not set
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
+# CONFIG_HZ_100 is not set
+CONFIG_HZ_250=y
+# CONFIG_HZ_300 is not set
+# CONFIG_HZ_1000 is not set
+CONFIG_HZ=250
+# CONFIG_SCHED_HRTICK is not set
+CONFIG_PREEMPT_NONE=y
+# CONFIG_PREEMPT_VOLUNTARY is not set
+# CONFIG_PREEMPT is not set
+CONFIG_BINFMT_ELF=y
+# CONFIG_BINFMT_MISC is not set
+# CONFIG_MATH_EMULATION is not set
+# CONFIG_IOMMU_HELPER is not set
+CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
+CONFIG_ARCH_HAS_WALK_MEMORY=y
+CONFIG_ARCH_ENABLE_MEMORY_HOTREMOVE=y
+CONFIG_ARCH_FLATMEM_ENABLE=y
+CONFIG_ARCH_POPULATES_NODE_MAP=y
+CONFIG_SELECT_MEMORY_MODEL=y
+CONFIG_FLATMEM_MANUAL=y
+# CONFIG_DISCONTIGMEM_MANUAL is not set
+# CONFIG_SPARSEMEM_MANUAL is not set
+CONFIG_FLATMEM=y
+CONFIG_FLAT_NODE_MEM_MAP=y
+# CONFIG_SPARSEMEM_STATIC is not set
+# CONFIG_SPARSEMEM_VMEMMAP_ENABLE is not set
+CONFIG_PAGEFLAGS_EXTENDED=y
+CONFIG_SPLIT_PTLOCK_CPUS=4
+CONFIG_RESOURCES_64BIT=y
+CONFIG_ZONE_DMA_FLAG=1
+CONFIG_BOUNCE=y
+CONFIG_VIRT_TO_BUS=y
+CONFIG_FORCE_MAX_ZONEORDER=11
+CONFIG_PROC_DEVICETREE=y
+# CONFIG_CMDLINE_BOOL is not set
+# CONFIG_PM is not set
+CONFIG_SECCOMP=y
+CONFIG_ISA_DMA_API=y
+
+#
+# Bus options
+#
+CONFIG_ZONE_DMA=y
+CONFIG_PPC_INDIRECT_PCI=y
+CONFIG_4xx_SOC=y
+CONFIG_PCI=y
+CONFIG_PCI_DOMAINS=y
+CONFIG_PCI_SYSCALL=y
+# CONFIG_PCIEPORTBUS is not set
+CONFIG_ARCH_SUPPORTS_MSI=y
+# CONFIG_PCI_MSI is not set
+# CONFIG_PCI_LEGACY is not set
+# CONFIG_PCI_DEBUG is not set
+# CONFIG_PCCARD is not set
+# CONFIG_HOTPLUG_PCI is not set
+# CONFIG_HAS_RAPIDIO is not set
+
+#
+# Advanced setup
+#
+# CONFIG_ADVANCED_OPTIONS is not set
+
+#
+# Default settings for advanced configuration options are used
+#
+CONFIG_LOWMEM_SIZE=0x30000000
+CONFIG_PAGE_OFFSET=0xc0000000
+CONFIG_KERNEL_START=0xc0000000
+CONFIG_PHYSICAL_START=0x00000000
+CONFIG_TASK_SIZE=0xc0000000
+CONFIG_CONSISTENT_START=0xff100000
+CONFIG_CONSISTENT_SIZE=0x00200000
+
+#
+# Networking
+#
+CONFIG_NET=y
+
+#
+# Networking options
+#
+CONFIG_PACKET=y
+# CONFIG_PACKET_MMAP is not set
+CONFIG_UNIX=y
+# CONFIG_NET_KEY is not set
+CONFIG_INET=y
+# CONFIG_IP_MULTICAST is not set
+# CONFIG_IP_ADVANCED_ROUTER is not set
+CONFIG_IP_FIB_HASH=y
+CONFIG_IP_PNP=y
+CONFIG_IP_PNP_DHCP=y
+CONFIG_IP_PNP_BOOTP=y
+# CONFIG_IP_PNP_RARP is not set
+# CONFIG_NET_IPIP is not set
+# CONFIG_NET_IPGRE is not set
+# CONFIG_ARPD is not set
+# CONFIG_SYN_COOKIES is not set
+# CONFIG_INET_AH is not set
+# CONFIG_INET_ESP is not set
+# CONFIG_INET_IPCOMP is not set
+# CONFIG_INET_XFRM_TUNNEL is not set
+# CONFIG_INET_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
+# CONFIG_INET_XFRM_MODE_TUNNEL is not set
+# CONFIG_INET_XFRM_MODE_BEET is not set
+# CONFIG_INET_LRO is not set
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_DEFAULT_TCP_CONG="cubic"
+# CONFIG_TCP_MD5SIG is not set
+# CONFIG_IPV6 is not set
+# CONFIG_NETWORK_SECMARK is not set
+# CONFIG_NETFILTER is not set
+# CONFIG_IP_DCCP is not set
+# CONFIG_IP_SCTP is not set
+# CONFIG_TIPC is not set
+# CONFIG_ATM is not set
+# CONFIG_BRIDGE is not set
+# CONFIG_VLAN_8021Q is not set
+# CONFIG_DECNET is not set
+# CONFIG_LLC2 is not set
+# CONFIG_IPX is not set
+# CONFIG_ATALK is not set
+# CONFIG_X25 is not set
+# CONFIG_LAPB is not set
+# CONFIG_ECONET is not set
+# CONFIG_WAN_ROUTER is not set
+# CONFIG_NET_SCHED is not set
+
+#
+# Network testing
+#
+# CONFIG_NET_PKTGEN is not set
+# CONFIG_HAMRADIO is not set
+# CONFIG_CAN is not set
+# CONFIG_IRDA is not set
+# CONFIG_BT is not set
+# CONFIG_AF_RXRPC is not set
+
+#
+# Wireless
+#
+# CONFIG_CFG80211 is not set
+# CONFIG_WIRELESS_EXT is not set
+# CONFIG_MAC80211 is not set
+# CONFIG_IEEE80211 is not set
+# CONFIG_RFKILL is not set
+# CONFIG_NET_9P is not set
+
+#
+# Device Drivers
+#
+
+#
+# Generic Driver Options
+#
+CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
+CONFIG_STANDALONE=y
+CONFIG_PREVENT_FIRMWARE_BUILD=y
+CONFIG_FW_LOADER=y
+# CONFIG_DEBUG_DRIVER is not set
+# CONFIG_DEBUG_DEVRES is not set
+# CONFIG_SYS_HYPERVISOR is not set
+CONFIG_CONNECTOR=y
+CONFIG_PROC_EVENTS=y
+CONFIG_MTD=y
+# CONFIG_MTD_DEBUG is not set
+# CONFIG_MTD_CONCAT is not set
+CONFIG_MTD_PARTITIONS=y
+# CONFIG_MTD_REDBOOT_PARTS is not set
+CONFIG_MTD_CMDLINE_PARTS=y
+CONFIG_MTD_OF_PARTS=y
+# CONFIG_MTD_AR7_PARTS is not set
+
+#
+# User Modules And Translation Layers
+#
+CONFIG_MTD_CHAR=y
+CONFIG_MTD_BLKDEVS=m
+CONFIG_MTD_BLOCK=m
+# CONFIG_MTD_BLOCK_RO is not set
+# CONFIG_FTL is not set
+# CONFIG_NFTL is not set
+# CONFIG_INFTL is not set
+# CONFIG_RFD_FTL is not set
+# CONFIG_SSFDC is not set
+# CONFIG_MTD_OOPS is not set
+
+#
+# RAM/ROM/Flash chip drivers
+#
+CONFIG_MTD_CFI=y
+CONFIG_MTD_JEDECPROBE=y
+CONFIG_MTD_GEN_PROBE=y
+# CONFIG_MTD_CFI_ADV_OPTIONS is not set
+CONFIG_MTD_MAP_BANK_WIDTH_1=y
+CONFIG_MTD_MAP_BANK_WIDTH_2=y
+CONFIG_MTD_MAP_BANK_WIDTH_4=y
+# CONFIG_MTD_MAP_BANK_WIDTH_8 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_16 is not set
+# CONFIG_MTD_MAP_BANK_WIDTH_32 is not set
+CONFIG_MTD_CFI_I1=y
+CONFIG_MTD_CFI_I2=y
+# CONFIG_MTD_CFI_I4 is not set
+# CONFIG_MTD_CFI_I8 is not set
+# CONFIG_MTD_CFI_INTELEXT is not set
+CONFIG_MTD_CFI_AMDSTD=y
+# CONFIG_MTD_CFI_STAA is not set
+CONFIG_MTD_CFI_UTIL=y
+# CONFIG_MTD_RAM is not set
+# CONFIG_MTD_ROM is not set
+# CONFIG_MTD_ABSENT is not set
+
+#
+# Mapping drivers for chip access
+#
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+# CONFIG_MTD_PHYSMAP is not set
+CONFIG_MTD_PHYSMAP_OF=y
+# CONFIG_MTD_INTEL_VR_NOR is not set
+# CONFIG_MTD_PLATRAM is not set
+
+#
+# Self-contained MTD device drivers
+#
+# CONFIG_MTD_PMC551 is not set
+# CONFIG_MTD_SLRAM is not set
+# CONFIG_MTD_PHRAM is not set
+# CONFIG_MTD_MTDRAM is not set
+# CONFIG_MTD_BLOCK2MTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
+# CONFIG_MTD_DOC2000 is not set
+# CONFIG_MTD_DOC2001 is not set
+# CONFIG_MTD_DOC2001PLUS is not set
+# CONFIG_MTD_NAND is not set
+# CONFIG_MTD_ONENAND is not set
+
+#
+# UBI - Unsorted block images
+#
+# CONFIG_MTD_UBI is not set
+CONFIG_OF_DEVICE=y
+# CONFIG_PARPORT is not set
+CONFIG_BLK_DEV=y
+# CONFIG_BLK_DEV_FD is not set
+# CONFIG_BLK_CPQ_DA is not set
+# CONFIG_BLK_CPQ_CISS_DA is not set
+# CONFIG_BLK_DEV_DAC960 is not set
+# CONFIG_BLK_DEV_UMEM is not set
+# CONFIG_BLK_DEV_COW_COMMON is not set
+# CONFIG_BLK_DEV_LOOP is not set
+# CONFIG_BLK_DEV_NBD is not set
+# CONFIG_BLK_DEV_SX8 is not set
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=35000
+# CONFIG_BLK_DEV_XIP is not set
+# CONFIG_CDROM_PKTCDVD is not set
+# CONFIG_ATA_OVER_ETH is not set
+# CONFIG_XILINX_SYSACE is not set
+CONFIG_MISC_DEVICES=y
+# CONFIG_PHANTOM is not set
+# CONFIG_EEPROM_93CX6 is not set
+# CONFIG_SGI_IOC4 is not set
+# CONFIG_TIFM_CORE is not set
+# CONFIG_ENCLOSURE_SERVICES is not set
+CONFIG_HAVE_IDE=y
+# CONFIG_IDE is not set
+
+#
+# SCSI device support
+#
+# CONFIG_RAID_ATTRS is not set
+# CONFIG_SCSI is not set
+# CONFIG_SCSI_DMA is not set
+# CONFIG_SCSI_NETLINK is not set
+# CONFIG_ATA is not set
+# CONFIG_MD is not set
+# CONFIG_FUSION is not set
+
+#
+# IEEE 1394 (FireWire) support
+#
+
+#
+# Enable only one of the two stacks, unless you know what you are doing
+#
+# CONFIG_FIREWIRE is not set
+# CONFIG_IEEE1394 is not set
+# CONFIG_I2O is not set
+# CONFIG_MACINTOSH_DRIVERS is not set
+CONFIG_NETDEVICES=y
+# CONFIG_NETDEVICES_MULTIQUEUE is not set
+# CONFIG_DUMMY is not set
+# CONFIG_BONDING is not set
+# CONFIG_MACVLAN is not set
+# CONFIG_EQUALIZER is not set
+# CONFIG_TUN is not set
+# CONFIG_VETH is not set
+# CONFIG_ARCNET is not set
+# CONFIG_PHYLIB is not set
+CONFIG_NET_ETHERNET=y
+# CONFIG_MII is not set
+# CONFIG_HAPPYMEAL is not set
+# CONFIG_SUNGEM is not set
+# CONFIG_CASSINI is not set
+# CONFIG_NET_VENDOR_3COM is not set
+# CONFIG_NET_TULIP is not set
+# CONFIG_HP100 is not set
+CONFIG_IBM_NEW_EMAC=y
+CONFIG_IBM_NEW_EMAC_RXB=128
+CONFIG_IBM_NEW_EMAC_TXB=64
+CONFIG_IBM_NEW_EMAC_POLL_WEIGHT=32
+CONFIG_IBM_NEW_EMAC_RX_COPY_THRESHOLD=256
+CONFIG_IBM_NEW_EMAC_RX_SKB_HEADROOM=0
+# CONFIG_IBM_NEW_EMAC_DEBUG is not set
+# CONFIG_IBM_NEW_EMAC_ZMII is not set
+# CONFIG_IBM_NEW_EMAC_RGMII is not set
+# CONFIG_IBM_NEW_EMAC_TAH is not set
+# CONFIG_IBM_NEW_EMAC_EMAC4 is not set
+# CONFIG_NET_PCI is not set
+# CONFIG_B44 is not set
+CONFIG_NETDEV_1000=y
+# CONFIG_ACENIC is not set
+# CONFIG_DL2K is not set
+# CONFIG_E1000 is not set
+# CONFIG_E1000E is not set
+# CONFIG_E1000E_ENABLED is not set
+# CONFIG_IP1000 is not set
+# CONFIG_IGB is not set
+# CONFIG_NS83820 is not set
+# CONFIG_HAMACHI is not set
+# CONFIG_YELLOWFIN is not set
+# CONFIG_R8169 is not set
+# CONFIG_SIS190 is not set
+# CONFIG_SKGE is not set
+# CONFIG_SKY2 is not set
+# CONFIG_VIA_VELOCITY is not set
+# CONFIG_TIGON3 is not set
+# CONFIG_BNX2 is not set
+# CONFIG_QLA3XXX is not set
+# CONFIG_ATL1 is not set
+CONFIG_NETDEV_10000=y
+# CONFIG_CHELSIO_T1 is not set
+# CONFIG_CHELSIO_T3 is not set
+# CONFIG_IXGBE is not set
+# CONFIG_IXGB is not set
+# CONFIG_S2IO is not set
+# CONFIG_MYRI10GE is not set
+# CONFIG_NETXEN_NIC is not set
+# CONFIG_NIU is not set
+# CONFIG_MLX4_CORE is not set
+# CONFIG_TEHUTI is not set
+# CONFIG_BNX2X is not set
+# CONFIG_SFC is not set
+# CONFIG_TR is not set
+
+#
+# Wireless LAN
+#
+# CONFIG_WLAN_PRE80211 is not set
+# CONFIG_WLAN_80211 is not set
+# CONFIG_IWLWIFI_LEDS is not set
+# CONFIG_WAN is not set
+# CONFIG_FDDI is not set
+# CONFIG_HIPPI is not set
+# CONFIG_PPP is not set
+# CONFIG_SLIP is not set
+# CONFIG_NETCONSOLE is not set
+# CONFIG_NETPOLL is not set
+# CONFIG_NET_POLL_CONTROLLER is not set
+# CONFIG_ISDN is not set
+# CONFIG_PHONE is not set
+
+#
+# Input device support
+#
+# CONFIG_INPUT is not set
+
+#
+# Hardware I/O ports
+#
+# CONFIG_SERIO is not set
+# CONFIG_GAMEPORT is not set
+
+#
+# Character devices
+#
+# CONFIG_VT is not set
+CONFIG_DEVKMEM=y
+# CONFIG_SERIAL_NONSTANDARD is not set
+# CONFIG_NOZOMI is not set
+
+#
+# Serial drivers
+#
+CONFIG_SERIAL_8250=y
+CONFIG_SERIAL_8250_CONSOLE=y
+CONFIG_SERIAL_8250_PCI=y
+CONFIG_SERIAL_8250_NR_UARTS=4
+CONFIG_SERIAL_8250_RUNTIME_UARTS=4
+CONFIG_SERIAL_8250_EXTENDED=y
+# CONFIG_SERIAL_8250_MANY_PORTS is not set
+CONFIG_SERIAL_8250_SHARE_IRQ=y
+# CONFIG_SERIAL_8250_DETECT_IRQ is not set
+# CONFIG_SERIAL_8250_RSA is not set
+
+#
+# Non-8250 serial port support
+#
+# CONFIG_SERIAL_UARTLITE is not set
+CONFIG_SERIAL_CORE=y
+CONFIG_SERIAL_CORE_CONSOLE=y
+# CONFIG_SERIAL_JSM is not set
+CONFIG_SERIAL_OF_PLATFORM=y
+CONFIG_UNIX98_PTYS=y
+CONFIG_LEGACY_PTYS=y
+CONFIG_LEGACY_PTY_COUNT=256
+# CONFIG_IPMI_HANDLER is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_NVRAM is not set
+# CONFIG_GEN_RTC is not set
+# CONFIG_R3964 is not set
+# CONFIG_APPLICOM is not set
+# CONFIG_RAW_DRIVER is not set
+# CONFIG_TCG_TPM is not set
+CONFIG_DEVPORT=y
+# CONFIG_I2C is not set
+# CONFIG_SPI is not set
+# CONFIG_W1 is not set
+# CONFIG_POWER_SUPPLY is not set
+# CONFIG_HWMON is not set
+# CONFIG_THERMAL is not set
+# CONFIG_THERMAL_HWMON is not set
+# CONFIG_WATCHDOG is not set
+
+#
+# Sonics Silicon Backplane
+#
+CONFIG_SSB_POSSIBLE=y
+# CONFIG_SSB is not set
+
+#
+# Multifunction device drivers
+#
+# CONFIG_MFD_SM501 is not set
+# CONFIG_HTC_PASIC3 is not set
+
+#
+# Multimedia devices
+#
+
+#
+# Multimedia core support
+#
+# CONFIG_VIDEO_DEV is not set
+# CONFIG_DVB_CORE is not set
+# CONFIG_VIDEO_MEDIA is not set
+
+#
+# Multimedia drivers
+#
+# CONFIG_DAB is not set
+
+#
+# Graphics support
+#
+# CONFIG_AGP is not set
+# CONFIG_DRM is not set
+# CONFIG_VGASTATE is not set
+CONFIG_VIDEO_OUTPUT_CONTROL=m
+# CONFIG_FB is not set
+# CONFIG_BACKLIGHT_LCD_SUPPORT is not set
+
+#
+# Display device support
+#
+# CONFIG_DISPLAY_SUPPORT is not set
+
+#
+# Sound
+#
+# CONFIG_SOUND is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_MMC is not set
+# CONFIG_MEMSTICK is not set
+# CONFIG_NEW_LEDS is not set
+# CONFIG_ACCESSIBILITY is not set
+# CONFIG_INFINIBAND is not set
+# CONFIG_EDAC is not set
+# CONFIG_RTC_CLASS is not set
+# CONFIG_DMADEVICES is not set
+# CONFIG_UIO is not set
+
+#
+# File systems
+#
+CONFIG_EXT2_FS=y
+# CONFIG_EXT2_FS_XATTR is not set
+# CONFIG_EXT2_FS_XIP is not set
+# CONFIG_EXT3_FS is not set
+# CONFIG_EXT4DEV_FS is not set
+# CONFIG_REISERFS_FS is not set
+# CONFIG_JFS_FS is not set
+# CONFIG_FS_POSIX_ACL is not set
+# CONFIG_XFS_FS is not set
+# CONFIG_OCFS2_FS is not set
+CONFIG_DNOTIFY=y
+CONFIG_INOTIFY=y
+CONFIG_INOTIFY_USER=y
+# CONFIG_QUOTA is not set
+# CONFIG_AUTOFS_FS is not set
+# CONFIG_AUTOFS4_FS is not set
+# CONFIG_FUSE_FS is not set
+
+#
+# CD-ROM/DVD Filesystems
+#
+# CONFIG_ISO9660_FS is not set
+# CONFIG_UDF_FS is not set
+
+#
+# DOS/FAT/NT Filesystems
+#
+# CONFIG_MSDOS_FS is not set
+# CONFIG_VFAT_FS is not set
+# CONFIG_NTFS_FS is not set
+
+#
+# Pseudo filesystems
+#
+CONFIG_PROC_FS=y
+CONFIG_PROC_KCORE=y
+CONFIG_PROC_SYSCTL=y
+CONFIG_SYSFS=y
+CONFIG_TMPFS=y
+# CONFIG_TMPFS_POSIX_ACL is not set
+# CONFIG_HUGETLB_PAGE is not set
+# CONFIG_CONFIGFS_FS is not set
+
+#
+# Miscellaneous filesystems
+#
+# CONFIG_ADFS_FS is not set
+# CONFIG_AFFS_FS is not set
+# CONFIG_HFS_FS is not set
+# CONFIG_HFSPLUS_FS is not set
+# CONFIG_BEFS_FS is not set
+# CONFIG_BFS_FS is not set
+# CONFIG_EFS_FS is not set
+# CONFIG_YAFFS_FS is not set
+# CONFIG_JFFS2_FS is not set
+CONFIG_CRAMFS=y
+# CONFIG_VXFS_FS is not set
+# CONFIG_MINIX_FS is not set
+# CONFIG_HPFS_FS is not set
+# CONFIG_QNX4FS_FS is not set
+# CONFIG_ROMFS_FS is not set
+# CONFIG_SYSV_FS is not set
+# CONFIG_UFS_FS is not set
+CONFIG_NETWORK_FILESYSTEMS=y
+CONFIG_NFS_FS=y
+CONFIG_NFS_V3=y
+# CONFIG_NFS_V3_ACL is not set
+# CONFIG_NFS_V4 is not set
+# CONFIG_NFSD is not set
+CONFIG_ROOT_NFS=y
+CONFIG_LOCKD=y
+CONFIG_LOCKD_V4=y
+CONFIG_NFS_COMMON=y
+CONFIG_SUNRPC=y
+# CONFIG_SUNRPC_BIND34 is not set
+# CONFIG_RPCSEC_GSS_KRB5 is not set
+# CONFIG_RPCSEC_GSS_SPKM3 is not set
+# CONFIG_SMB_FS is not set
+# CONFIG_CIFS is not set
+# CONFIG_NCP_FS is not set
+# CONFIG_CODA_FS is not set
+# CONFIG_AFS_FS is not set
+
+#
+# Partition Types
+#
+# CONFIG_PARTITION_ADVANCED is not set
+CONFIG_MSDOS_PARTITION=y
+# CONFIG_NLS is not set
+# CONFIG_DLM is not set
+
+#
+# Library routines
+#
+CONFIG_BITREVERSE=y
+# CONFIG_GENERIC_FIND_FIRST_BIT is not set
+# CONFIG_CRC_CCITT is not set
+# CONFIG_CRC16 is not set
+# CONFIG_CRC_ITU_T is not set
+CONFIG_CRC32=y
+# CONFIG_CRC7 is not set
+# CONFIG_LIBCRC32C is not set
+CONFIG_ZLIB_INFLATE=y
+CONFIG_PLIST=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAS_DMA=y
+CONFIG_HAVE_LMB=y
+
+#
+# Kernel hacking
+#
+# CONFIG_PRINTK_TIME is not set
+CONFIG_ENABLE_WARN_DEPRECATED=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_FRAME_WARN=1024
+CONFIG_MAGIC_SYSRQ=y
+# CONFIG_UNUSED_SYMBOLS is not set
+CONFIG_DEBUG_FS=y
+# CONFIG_HEADERS_CHECK is not set
+CONFIG_DEBUG_KERNEL=y
+# CONFIG_DEBUG_SHIRQ is not set
+CONFIG_DETECT_SOFTLOCKUP=y
+CONFIG_SCHED_DEBUG=y
+# CONFIG_SCHEDSTATS is not set
+# CONFIG_TIMER_STATS is not set
+# CONFIG_DEBUG_OBJECTS is not set
+# CONFIG_SLUB_DEBUG_ON is not set
+# CONFIG_SLUB_STATS is not set
+# CONFIG_DEBUG_RT_MUTEXES is not set
+# CONFIG_RT_MUTEX_TESTER is not set
+# CONFIG_DEBUG_SPINLOCK is not set
+# CONFIG_DEBUG_MUTEXES is not set
+# CONFIG_DEBUG_SPINLOCK_SLEEP is not set
+# CONFIG_DEBUG_LOCKING_API_SELFTESTS is not set
+# CONFIG_DEBUG_KOBJECT is not set
+CONFIG_DEBUG_BUGVERBOSE=y
+# CONFIG_DEBUG_INFO is not set
+# CONFIG_DEBUG_VM is not set
+# CONFIG_DEBUG_WRITECOUNT is not set
+# CONFIG_DEBUG_LIST is not set
+# CONFIG_DEBUG_SG is not set
+# CONFIG_BOOT_PRINTK_DELAY is not set
+# CONFIG_RCU_TORTURE_TEST is not set
+# CONFIG_BACKTRACE_SELF_TEST is not set
+# CONFIG_FAULT_INJECTION is not set
+# CONFIG_SAMPLES is not set
+# CONFIG_DEBUG_STACKOVERFLOW is not set
+# CONFIG_DEBUG_STACK_USAGE is not set
+# CONFIG_DEBUG_PAGEALLOC is not set
+# CONFIG_DEBUGGER is not set
+# CONFIG_IRQSTACKS is not set
+# CONFIG_VIRQ_DEBUG is not set
+# CONFIG_BDI_SWITCH is not set
+# CONFIG_PPC_EARLY_DEBUG is not set
+
+#
+# Security options
+#
+# CONFIG_KEYS is not set
+# CONFIG_SECURITY is not set
+# CONFIG_SECURITY_FILE_CAPABILITIES is not set
+CONFIG_CRYPTO=y
+
+#
+# Crypto core or helper
+#
+CONFIG_CRYPTO_ALGAPI=y
+CONFIG_CRYPTO_BLKCIPHER=y
+CONFIG_CRYPTO_MANAGER=y
+# CONFIG_CRYPTO_GF128MUL is not set
+# CONFIG_CRYPTO_NULL is not set
+# CONFIG_CRYPTO_CRYPTD is not set
+# CONFIG_CRYPTO_AUTHENC is not set
+# CONFIG_CRYPTO_TEST is not set
+
+#
+# Authenticated Encryption with Associated Data
+#
+# CONFIG_CRYPTO_CCM is not set
+# CONFIG_CRYPTO_GCM is not set
+# CONFIG_CRYPTO_SEQIV is not set
+
+#
+# Block modes
+#
+CONFIG_CRYPTO_CBC=y
+# CONFIG_CRYPTO_CTR is not set
+# CONFIG_CRYPTO_CTS is not set
+CONFIG_CRYPTO_ECB=y
+# CONFIG_CRYPTO_LRW is not set
+CONFIG_CRYPTO_PCBC=y
+# CONFIG_CRYPTO_XTS is not set
+
+#
+# Hash modes
+#
+# CONFIG_CRYPTO_HMAC is not set
+# CONFIG_CRYPTO_XCBC is not set
+
+#
+# Digest
+#
+# CONFIG_CRYPTO_CRC32C is not set
+# CONFIG_CRYPTO_MD4 is not set
+CONFIG_CRYPTO_MD5=y
+# CONFIG_CRYPTO_MICHAEL_MIC is not set
+# CONFIG_CRYPTO_SHA1 is not set
+# CONFIG_CRYPTO_SHA256 is not set
+# CONFIG_CRYPTO_SHA512 is not set
+# CONFIG_CRYPTO_TGR192 is not set
+# CONFIG_CRYPTO_WP512 is not set
+
+#
+# Ciphers
+#
+# CONFIG_CRYPTO_AES is not set
+# CONFIG_CRYPTO_ANUBIS is not set
+# CONFIG_CRYPTO_ARC4 is not set
+# CONFIG_CRYPTO_BLOWFISH is not set
+# CONFIG_CRYPTO_CAMELLIA is not set
+# CONFIG_CRYPTO_CAST5 is not set
+# CONFIG_CRYPTO_CAST6 is not set
+CONFIG_CRYPTO_DES=y
+# CONFIG_CRYPTO_FCRYPT is not set
+# CONFIG_CRYPTO_KHAZAD is not set
+# CONFIG_CRYPTO_SALSA20 is not set
+# CONFIG_CRYPTO_SEED is not set
+# CONFIG_CRYPTO_SERPENT is not set
+# CONFIG_CRYPTO_TEA is not set
+# CONFIG_CRYPTO_TWOFISH is not set
+
+#
+# Compression
+#
+# CONFIG_CRYPTO_DEFLATE is not set
+# CONFIG_CRYPTO_LZO is not set
+CONFIG_CRYPTO_HW=y
+# CONFIG_CRYPTO_DEV_HIFN_795X is not set
+# CONFIG_PPC_CLOCK is not set
+# CONFIG_VIRTUALIZATION is not set
diff --git a/arch/powerpc/platforms/40x/Kconfig 
b/arch/powerpc/platforms/40x/Kconfig
index a9260e2..3bf4eb5 100644
--- a/arch/powerpc/platforms/40x/Kconfig
+++ b/arch/powerpc/platforms/40x/Kconfig
@@ -23,6 +23,14 @@ config EP405
 	help
 	  This option enables support for the EP405/EP405PC boards.
 
+config HCU4
+	bool "Hcu4"
+	depends on 40x
+	default y
+	select 405GPr
+	help
+	  This option enables support for the Nestal Maschinen HCU4 board.
+
 config KILAUEA
 	bool "Kilauea"
 	depends on 40x
diff --git a/arch/powerpc/platforms/40x/Makefile 
b/arch/powerpc/platforms/40x/Makefile
index 5d53107..43d1ed7 100644
--- a/arch/powerpc/platforms/40x/Makefile
+++ b/arch/powerpc/platforms/40x/Makefile
@@ -1,4 +1,5 @@
 obj-$(CONFIG_KILAUEA)				+= kilauea.o
+obj-$(CONFIG_HCU4)				+= hcu4.o
 obj-$(CONFIG_MAKALU)				+= makalu.o
 obj-$(CONFIG_WALNUT)				+= walnut.o
 obj-$(CONFIG_XILINX_VIRTEX_GENERIC_BOARD)	+= virtex.o
diff --git a/arch/powerpc/platforms/40x/hcu4.c 
b/arch/powerpc/platforms/40x/hcu4.c
new file mode 100644
index 0000000..af147f0
--- /dev/null
+++ b/arch/powerpc/platforms/40x/hcu4.c
@@ -0,0 +1,61 @@
+/*
+ * Architecture- / platform-specific boot-time initialization code for
+ * IBM PowerPC 4xx based boards. Adapted from original
+ * code by Gary Thomas, Cort Dougan <cort@fsmlabs.com>, and Dan Malek
+ * <dan@net4x.com>.
+ *
+ * Copyright(c) 1999-2000 Grant Erickson <grant@lcse.umn.edu>
+ *
+ * Rewritten and ported to the merged powerpc tree:
+ * Copyright 2007 IBM Corporation
+ * Josh Boyer <jwboyer@linux.vnet.ibm.com>
+ *
+ * 2002 (c) MontaVista, Software, Inc.  This file is licensed under
+ * the terms of the GNU General Public License version 2.  This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#include <linux/init.h>
+#include <linux/of_platform.h>
+
+#include <asm/machdep.h>
+#include <asm/prom.h>
+#include <asm/udbg.h>
+#include <asm/time.h>
+#include <asm/uic.h>
+#include <asm/ppc4xx.h>
+
+static __initdata struct of_device_id hcu4_of_bus[] = {
+	{ .compatible = "ibm,plb3", },
+	{ .compatible = "ibm,opb", },
+	{ .compatible = "ibm,ebc", },
+	{},
+};
+
+static int __init hcu4_device_probe(void)
+{
+	of_platform_bus_probe(NULL, hcu4_of_bus, NULL);
+	return 0;
+}
+machine_device_initcall(hcu4, hcu4_device_probe);
+
+static int __init hcu4_probe(void)
+{
+	unsigned long root = of_get_flat_dt_root();
+
+	if (!of_flat_dt_is_compatible(root, "ibm,hcu4"))
+		return 0;
+
+	return 1;
+}
+
+define_machine(hcu4) {
+	.name			= "Hcu4",
+	.probe			= hcu4_probe,
+	.progress		= udbg_progress,
+	.init_IRQ		= uic_init_tree,
+	.get_irq		= uic_get_irq,
+	.restart		= ppc4xx_reset_system,
+	.calibrate_decr		= generic_calibrate_decr,
+};
diff --git a/arch/ppc/platforms/4xx/hcu4.h b/arch/ppc/platforms/4xx/hcu4.h
new file mode 100644
index 0000000..c05a825
--- /dev/null
+++ b/arch/ppc/platforms/4xx/hcu4.h
@@ -0,0 +1,43 @@
+/*
+ * Hcu4 board definitions
+ *
+ * Copyright (c) 2005 DENX Software Engineering
+ * Stefan Roese <sr@denx.de>
+ *
+ * Based on original work by
+ * 	Copyright (c) 1999 Grant Erickson <grant@lcse.umn.edu>
+ *	Frank Rowand <frank_rowand@mvista.com>
+ *	Debbie Chu <debbie_chu@mvista.com>
+ *	2000 (c) MontaVista, Software, Inc.
+ *
+ * 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.
+ *
+ */
+
+#ifdef __KERNEL__
+#ifndef __ASM_HCU4_H__
+#define __ASM_HCU4_H__
+
+#include <platforms/4xx/ibm405gp.h>
+#include <asm/ppcboot.h>
+
+/* Memory map for the IBM "Walnut" 405GP evaluation board.
+ * Generic 4xx plus RTC.
+ */
+
+#define BASE_BAUD		691200
+
+
+/* Flash */
+#define PPC40x_FLASH_SRAM_SEL(x) (x & 0x01)
+#define PPC40x_FLASH_LOW	0xFFF00000
+#define PPC40x_FLASH_HIGH	0xFFF80000
+#define PPC40x_FLASH_SIZE	0x80000
+
+#define PPC4xx_MACHINE_NAME	"Nestal HCU4"
+
+#endif /* __ASM_HCU4_H__ */
+#endif /* __KERNEL__ */
diff --git a/include/asm-ppc/ibm4xx.h b/include/asm-ppc/ibm4xx.h
index f56f1f8..71507c6 100644
--- a/include/asm-ppc/ibm4xx.h
+++ b/include/asm-ppc/ibm4xx.h
@@ -35,6 +35,10 @@
 #include <platforms/4xx/ep405.h>
 #endif
 
+#if defined(CONFIG_HCU4)
+#include <platforms/4xx/hcu4.h>
+#endif
+
 #if defined(CONFIG_KILAUEA)
 #include <platforms/4xx/kilauea.h>
 #endif
-- 
1.6.0.1

Re: [PATCH] Added preliminary support for Netstal HCU4 board

[Josh Boyer]

On Wed, Oct 01, 2008 at 07:47:16PM +0200, Niklaus Giger wrote:
>Adds preliminary support for a HCU4 PPC405GPr based board from
>Netstal Maschinen AG.
>
>For the last 3 years I have been the only user running Linux on this board, 
>but it served me well as testbed for the xenomai realtime extension to the 
>Linux kernel.

Overall, really nice for a first submission.

>Patch against the  git://www.denx.de/git/linux-2.6-denx.git

Can you rebase against:

git://git.kernel.org/pub/scm/linux/kernel/git/jwboyer/powerpc-4xx.git next

?

>diff --git a/arch/powerpc/boot/dts/hcu4.dts b/arch/powerpc/boot/dts/hcu4.dts
>new file mode 100644
>index 0000000..a954165
>--- /dev/null
>+++ b/arch/powerpc/boot/dts/hcu4.dts
>@@ -0,0 +1,175 @@
>+/*
>+ * Device Tree Source for Netstal Maschinen HCU4
>+ * based on the IBM Walnut

<snip>

We want dts-v1 files in the kernel now.  It's a much
cleaner represenation.  See the DTS files in the git repo
I pointed to above for examples.  I think there are 
conversion scripts as well.

>+/ {
>+	#address-cells = <1>;
>+	#size-cells = <1>;
>+	model = "ibm,hcu4";
>+	compatible = "ibm,hcu4";

These shouldn't be "ibm,hcu4".  IBM didn't make these boards.
Instead, you should make them "<company>,<board>", where
<company> is the company that made them (often the stock ticker
is used), and <board> is obviously hcu4 in this case.

>+	dcr-parent = <&/cpus/cpu@0>;
>+
>+	aliases {
>+		ethernet0 = &EMAC;
>+		serial0 = &UART0;
>+	};
>+
>+	cpus {
>+		#address-cells = <1>;
>+		#size-cells = <0>;
>+
>+		cpu@0 {
>+			device_type = "cpu";
>+			model = "PowerPC,405GPr";
>+			reg = <0>;
>+			clock-frequency = <bebc200>; /* Filled in by zImage */

Still filled in, or is the comment bogus now?

<snip>

>diff --git a/arch/powerpc/platforms/40x/Kconfig 
>b/arch/powerpc/platforms/40x/Kconfig
>index a9260e2..3bf4eb5 100644
>--- a/arch/powerpc/platforms/40x/Kconfig
>+++ b/arch/powerpc/platforms/40x/Kconfig
>@@ -23,6 +23,14 @@ config EP405
> 	help
> 	  This option enables support for the EP405/EP405PC boards.
> 
>+config HCU4
>+	bool "Hcu4"
>+	depends on 40x
>+	default y
>+	select 405GPr

I think this should have been:

select 405GPR

<snip>

>diff --git a/arch/ppc/platforms/4xx/hcu4.h b/arch/ppc/platforms/4xx/hcu4.h
>new file mode 100644
>index 0000000..c05a825
>--- /dev/null
>+++ b/arch/ppc/platforms/4xx/hcu4.h

arch/ppc doesn't exist anymore.  You can drop this file entirely.

<snip>

>diff --git a/include/asm-ppc/ibm4xx.h b/include/asm-ppc/ibm4xx.h
>index f56f1f8..71507c6 100644
>--- a/include/asm-ppc/ibm4xx.h
>+++ b/include/asm-ppc/ibm4xx.h

Same comment as above.

josh

Re: [PATCH] Added preliminary support for Netstal HCU4 board

[Niklaus Giger]

Am Mittwoch 01 Oktober 2008 20.08:35 schrieb Josh Boyer:
> On Wed, Oct 01, 2008 at 07:47:16PM +0200, Niklaus Giger wrote:
> >Adds preliminary support for a HCU4 PPC405GPr based board from
> >Netstal Maschinen AG.
> >
> >For the last 3 years I have been the only user running Linux on this
> > board, but it served me well as testbed for the xenomai realtime
> > extension to the Linux kernel.
>
> Overall, really nice for a first submission.
One never has a second chance to make a first imrpession.

It was easy to make the needed changes (except changing ibm -> amcc, see 
below). The dtc does the conversion from the old to the new format dts-v1 
without a hitch. Calling "dtc -I dts -O dts hcu5.dts.old >hcu5.dts.new"l

My board is now in even better shape than before as I discovered that in my 
dts I even wrongly overwrote a the speed variable for the early boot messages.
Thanks a lot for suggestion!

> >+/ {
> >+	#address-cells = <1>;
> >+	#size-cells = <1>;
> >+	model = "ibm,hcu4";
> >+	compatible = "ibm,hcu4";
>
> These shouldn't be "ibm,hcu4".  IBM didn't make these boards.
> Instead, you should make them "<company>,<board>", where
> <company> is the company that made them (often the stock ticker
> is used), and <board> is obviously hcu4 in this case.

Can you explain this a little bit more to me. When we started to fabricate our 
boards we got the chips (or were it only the even older PPC403?) from IBM. If 
I just replace in this dts file "ibm" by "amcc" my board does not boot anymore. 
But if you give me a hint where and what I have to replace. I would volunteer 
to clean it up (if it not too much work) a little bit.

I cannot test on all boards but I have a walnut, yosemite and sequoia board at 
hand. Therefore I would be more confident to limit the cleanup to these boards.
(But only after my vacation, e.g. after the 20 of october).

Would you accept in the mean time a patch which still refers to "ibm,uic"?

Best regards

Niklaus

Re: [PATCH] Added preliminary support for Netstal HCU4 board

[Josh Boyer]

On Thu, 2 Oct 2008 00:14:19 +0200
Niklaus Giger <niklaus.giger@member.fsf.org> wrote:

> Am Mittwoch 01 Oktober 2008 20.08:35 schrieb Josh Boyer:
> > On Wed, Oct 01, 2008 at 07:47:16PM +0200, Niklaus Giger wrote:
> > >Adds preliminary support for a HCU4 PPC405GPr based board from
> > >Netstal Maschinen AG.
> > >
> > >For the last 3 years I have been the only user running Linux on this
> > > board, but it served me well as testbed for the xenomai realtime
> > > extension to the Linux kernel.
> >
> > Overall, really nice for a first submission.
> One never has a second chance to make a first imrpession.
> 
> It was easy to make the needed changes (except changing ibm -> amcc, see 
> below). The dtc does the conversion from the old to the new format dts-v1 
> without a hitch. Calling "dtc -I dts -O dts hcu5.dts.old >hcu5.dts.new"l
> 
> My board is now in even better shape than before as I discovered that in my 
> dts I even wrongly overwrote a the speed variable for the early boot messages.
> Thanks a lot for suggestion!
> 
> > >+/ {
> > >+	#address-cells = <1>;
> > >+	#size-cells = <1>;
> > >+	model = "ibm,hcu4";
> > >+	compatible = "ibm,hcu4";
> >
> > These shouldn't be "ibm,hcu4".  IBM didn't make these boards.
> > Instead, you should make them "<company>,<board>", where
> > <company> is the company that made them (often the stock ticker
> > is used), and <board> is obviously hcu4 in this case.
> 
> Can you explain this a little bit more to me. When we started to fabricate our 
> boards we got the chips (or were it only the even older PPC403?) from IBM. If 
> I just replace in this dts file "ibm" by "amcc" my board does not boot anymore. 
> But if you give me a hint where and what I have to replace. I would volunteer 
> to clean it up (if it not too much work) a little bit.

No no.  I don't mean throughout the DTS file.  I just mean in the top
level model and compatible properties.  Those properties apply to the
overall board.  The CPU an ASCIs (EMAC, serial, etc) in the DTS are most
certainly from IBM, but your company actually manufactures the board.

So the top should be something like:

model = "netstal,hcu4";
compatible = "netstal,hcu4";

Everything else in the DTS looked fine in this regard as it is.

You will have to change your hcu4.c file to have:

	if (!of_flat_dt_is-compatible(root, "netstal,hcu4"))
		return 0;

and then it should be ok.

josh

Re: [PATCH] Added preliminary support for Netstal HCU4 board

[David Gibson]

On Thu, Oct 02, 2008 at 12:14:19AM +0200, Niklaus Giger wrote:
> Am Mittwoch 01 Oktober 2008 20.08:35 schrieb Josh Boyer:
> > On Wed, Oct 01, 2008 at 07:47:16PM +0200, Niklaus Giger wrote:
> > >Adds preliminary support for a HCU4 PPC405GPr based board from
> > >Netstal Maschinen AG.
> > >
> > >For the last 3 years I have been the only user running Linux on this
> > > board, but it served me well as testbed for the xenomai realtime
> > > extension to the Linux kernel.
> >
> > Overall, really nice for a first submission.
> One never has a second chance to make a first imrpession.
> 
> It was easy to make the needed changes (except changing ibm -> amcc, see 
> below). The dtc does the conversion from the old to the new format dts-v1 
> without a hitch. Calling "dtc -I dts -O dts hcu5.dts.old >hcu5.dts.new"l

That will work, but will lose comments, references, and other
formatting, because it essentially compiles then decompiles the tree.
You probably don't want to do that.  There's also an explicit
conversion program, convert-dtsv0, which will preserve that
not-significant-to-output, but useful for the reader information.

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

Re: [PATCH] Added preliminary support for Netstal HCU4 board

[Niklaus Giger]

Hi David

Am Donnerstag 02 Oktober 2008 02.52:08 schrieb David Gibson:
> That will work, but will lose comments, references, and other
> formatting, because it essentially compiles then decompiles the tree.
> You probably don't want to do that. =A0There's also an explicit
> conversion program, convert-dtsv0, which will preserve that
> not-significant-to-output, but useful for the reader information.

Thanks for providing me the hint. Using it, would surely  have been easier=
=20
than adding manually the comment again. However I using the search=20
"dtc dts-v1 syntax conversion script" didn't give me any hint and even in t=
he=20
the current  http://www.jdl.com/software/dtc.git I find no word in the=20
Documentation about convert-dtsv0.

Neither does it get installed when calling make install.

Therefore I would suggest you to add a small remark like this:

convert-dtsv0 is a small utility program which converts (DTS)
Device Tree Source from the obsolete version 0 to version 1. Version 1 DTS
files are marked by line "/dts-v1/;" at the top of the file.

Best regards

Niklaus

Re: [PATCH] Added preliminary support for Netstal HCU4 board

[David Gibson]

On Thu, Oct 02, 2008 at 07:12:14AM +0200, Niklaus Giger wrote:
> Hi David
> 
> Am Donnerstag 02 Oktober 2008 02.52:08 schrieb David Gibson:
> > That will work, but will lose comments, references, and other
> > formatting, because it essentially compiles then decompiles the tree.
> > You probably don't want to do that.  There's also an explicit
> > conversion program, convert-dtsv0, which will preserve that
> > not-significant-to-output, but useful for the reader information.
> 
> Thanks for providing me the hint. Using it, would surely  have been easier 
> than adding manually the comment again. However I using the search 
> "dtc dts-v1 syntax conversion script" didn't give me any hint and even in the 
> the current  http://www.jdl.com/software/dtc.git I find no word in the 
> Documentation about convert-dtsv0.
> 
> Neither does it get installed when calling make install.

Ah, yes, that's a bug.

> Therefore I would suggest you to add a small remark like this:
> 
> convert-dtsv0 is a small utility program which converts (DTS)
> Device Tree Source from the obsolete version 0 to version 1. Version 1 DTS
> files are marked by line "/dts-v1/;" at the top of the file.

Add this remark where, though?

-- 
David Gibson			| I'll have my music baroque, and my code
david AT gibson.dropbear.id.au	| minimalist, thank you.  NOT _the_ _other_
				| _way_ _around_!
http://www.ozlabs.org/~dgibson

Re: [PATCH] Added preliminary support for Netstal HCU4 board

[Niklaus Giger]

Am Donnerstag 02 Oktober 2008 08.41:56 schrieb David Gibson:
> On Thu, Oct 02, 2008 at 07:12:14AM +0200, Niklaus Giger wrote:
> > Hi David
> >
> > Am Donnerstag 02 Oktober 2008 02.52:08 schrieb David Gibson:
> > > That will work, but will lose comments, references, and other
> > > formatting, because it essentially compiles then decompiles the tree.
> > > You probably don't want to do that. =A0There's also an explicit
> > > conversion program, convert-dtsv0, which will preserve that
> > > not-significant-to-output, but useful for the reader information.
> >
> > Thanks for providing me the hint. Using it, would surely  have been
> > easier than adding manually the comment again. However I using the sear=
ch
> > "dtc dts-v1 syntax conversion script" didn't give me any hint and even =
in
> > the the current  http://www.jdl.com/software/dtc.git I find no word in
> > the Documentation about convert-dtsv0.
> >
> > Neither does it get installed when calling make install.
>
> Ah, yes, that's a bug.
>
> > Therefore I would suggest you to add a small remark like this:
> >
> > convert-dtsv0 is a small utility program which converts (DTS)
> > Device Tree Source from the obsolete version 0 to version 1. Version 1
> > DTS files are marked by line "/dts-v1/;" at the top of the file.
>
> Add this remark where, though?
Add a small chapter IV Utilities in your Documentation/manual.txt.

And if the http://www.jdl.com/git_repos/ would work again, I think the spid=
ers=20
would pick it up from there.

Best regards

Niklaus

Re: [PATCH] Added preliminary support for Netstal HCU4 board

[Jon Loeliger]

On Thu, 2008-10-02 at 21:08 +0200, Niklaus Giger wrote:

> > > convert-dtsv0 is a small utility program which converts (DTS)
> > > Device Tree Source from the obsolete version 0 to version 1. Version 1
> > > DTS files are marked by line "/dts-v1/;" at the top of the file.
> >
> > Add this remark where, though?
> Add a small chapter IV Utilities in your Documentation/manual.txt.

Patches welcome, of course. :-)

> And if the http://www.jdl.com/git_repos/ would work again, I think the spiders 
> would pick it up from there.


I fetched http://www.jdl.com/software/dtc.git through
my firewall at work just this morning.  What problem
are you seeing?  Are you unable to clone
git://git.jdl.com/software/dtc/git ?

jdl

Re: [PATCH] Added preliminary support for Netstal HCU4 board

[Niklaus Giger]

Am Donnerstag 02 Oktober 2008 21.37:00 schrieb Jon Loeliger:
> On Thu, 2008-10-02 at 21:08 +0200, Niklaus Giger wrote:
> > > > convert-dtsv0 is a small utility program which converts (DTS)
> > > > Device Tree Source from the obsolete version 0 to version 1. Version
> > > > 1 DTS files are marked by line "/dts-v1/;" at the top of the file.
> > >
> > > Add this remark where, though?
> >
> > Add a small chapter IV Utilities in your Documentation/manual.txt.
>
> Patches welcome, of course. :-)
>
> > And if the http://www.jdl.com/git_repos/ would work again, I think the
> > spiders would pick it up from there.
>
> I fetched http://www.jdl.com/software/dtc.git through
> my firewall at work just this morning.  What problem
> are you seeing?  Are you unable to clone
> git://git.jdl.com/software/dtc/git ?
>
> jdl
git pull worked perfectly. But in Documentation/manual.txt you promise:
> -- The gitweb interface is:
>
>     http://www.jdl.com/git_repos/
And this link does not work.

Best regards.

Niklaus

Re: [PATCH] Added preliminary support for Netstal HCU4 board

[Jon Loeliger]

On Thu, 2008-10-02 at 21:51 +0200, Niklaus Giger wrote:

> git pull worked perfectly. But in Documentation/manual.txt you promise:
> > -- The gitweb interface is:
> >
> >     http://www.jdl.com/git_repos/
> And this link does not work.

Gah.  Thanks.

jdl