Denx Linux 2.6.19.2 and MicroSys CR825/PM827

Hi all,

I use BuildRoot and Linux 2.6.19.2 (Denx kernel) on a MicroSys CR825/
PM827 board, but Linux didn't recognize my 32M flash (4 Intel
28F640C3). I have also tried the pm82x_defconfig profile but Linux
crash after line "NFTL driver: nftlcore.c $Revision: 1.98 $,
nftlmount.c $Revision: 1.41 $".

Any ideas ?

Best regards,
Guillaume


My Linux configuration :
==============================================================
#
# Automatically generated make config: don't edit
# Linux kernel version: 2.6.19.2
# Fri Jul 17 11:52:26 2009
#
CONFIG_MMU=y
CONFIG_GENERIC_HARDIRQS=y
CONFIG_RWSEM_XCHGADD_ALGORITHM=y
CONFIG_GENERIC_HWEIGHT=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_PPC=y
CONFIG_PPC32=y
CONFIG_GENERIC_NVRAM=y
CONFIG_GENERIC_FIND_NEXT_BIT=y
CONFIG_SCHED_NO_NO_OMIT_FRAME_POINTER=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_DEFCONFIG_LIST="/lib/modules/$UNAME_RELEASE/.config"

#
# Code maturity level options
#
CONFIG_EXPERIMENTAL=y
CONFIG_BROKEN_ON_SMP=y
CONFIG_LOCK_KERNEL=y
CONFIG_INIT_ENV_ARG_LIMIT=32

#
# General setup
#
CONFIG_LOCALVERSION=""
CONFIG_IKCONFIG=y
CONFIG_IKCONFIG_PROC=y
CONFIG_INITRAMFS_SOURCE=""
CONFIG_CC_OPTIMIZE_FOR_SIZE=y
CONFIG_EMBEDDED=y
CONFIG_PRINTK=y
CONFIG_SHMEM=y
CONFIG_BASE_SMALL=1
CONFIG_SLOB=y

#
# Block layer
#
CONFIG_BLOCK=y

#
# IO Schedulers
#
CONFIG_IOSCHED_NOOP=y
CONFIG_DEFAULT_NOOP=y
CONFIG_DEFAULT_IOSCHED="noop"

#
# Processor
#
CONFIG_6xx=y
CONFIG_PPC_FPU=y
CONFIG_EMBEDDEDBOOT=y
CONFIG_PPC_STD_MMU=y

#
# Freescale Ethernet driver platform-specific options
#
CONFIG_PM82X=y
CONFIG_8260=y
CONFIG_CPM2=y
CONFIG_ARCH_POPULATES_NODE_MAP=y
CONFIG_HZ_250=y
CONFIG_HZ=250
CONFIG_PREEMPT=y
CONFIG_PREEMPT_BKL=y
CONFIG_SELECT_MEMORY_MODEL=y
CONFIG_FLATMEM_MANUAL=y
CONFIG_FLATMEM=y
CONFIG_FLAT_NODE_MEM_MAP=y
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_BINFMT_ELF=y
CONFIG_ISA_DMA_API=y

#
# Bus options
#
# CONFIG_PPC_I8259 is not set
CONFIG_PPC_INDIRECT_PCI=y
CONFIG_PCI=y
CONFIG_PCI_DOMAINS=y
CONFIG_PCI_8260=y

#
# Advanced setup
#
# CONFIG_ADVANCED_OPTIONS is not set

#
# Default settings for advanced configuration options are used
#
CONFIG_HIGHMEM_START=0xfe000000
CONFIG_LOWMEM_SIZE=0x30000000
CONFIG_KERNEL_START=0xc0000000
CONFIG_TASK_SIZE=0x80000000
CONFIG_BOOT_LOAD=0x00400000

#
# Networking
#
CONFIG_NET=y

#
# Networking options
#
CONFIG_INET=y
CONFIG_IP_FIB_HASH=y
CONFIG_IP_PNP=y
CONFIG_TCP_CONG_CUBIC=y
CONFIG_DEFAULT_TCP_CONG="cubic"

#
# Generic Driver Options
#
CONFIG_STANDALONE=y

#
# Memory Technology Devices (MTD)
#
CONFIG_MTD=y
CONFIG_MTD_PARTITIONS=y
CONFIG_MTD_CMDLINE_PARTS=y

#
# User Modules And Translation Layers
#
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
CONFIG_NFTL=y

#
# RAM/ROM/Flash chip drivers
#
CONFIG_MTD_CFI=y
CONFIG_MTD_JEDECPROBE=y
CONFIG_MTD_GEN_PROBE=y
CONFIG_MTD_CFI_ADV_OPTIONS=y
CONFIG_MTD_CFI_NOSWAP=y
CONFIG_MTD_CFI_GEOMETRY=y
CONFIG_MTD_MAP_BANK_WIDTH_2=y
CONFIG_MTD_CFI_I4=y
CONFIG_MTD_CFI_INTELEXT=y
CONFIG_MTD_CFI_UTIL=y

#
# Mapping drivers for chip access
#
CONFIG_MTD_COMPLEX_MAPPINGS=y
CONFIG_MTD_PM82X=y

#
# NAND Flash Device Drivers
#
CONFIG_MTD_NAND=y
CONFIG_MTD_NAND_ECC_SMC=y
CONFIG_MTD_NAND_IDS=y
CONFIG_MTD_NAND_DISKONCHIP=y
CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADVANCED=y
CONFIG_MTD_NAND_DISKONCHIP_PROBE_ADDRESS=0

#
# Network device support
#
CONFIG_NETDEVICES=y

#
# PHY device support
#
CONFIG_PHYLIB=y

#
# MII PHY device drivers
#
CONFIG_LXT_PHY=y

#
# Ethernet (10 or 100Mbit)
#
CONFIG_NET_ETHERNET=y
CONFIG_MII=y

#
# Tulip family network device support
#
CONFIG_FS_ENET=y
CONFIG_FS_ENET_HAS_FCC=y

#
# Non-8250 serial port support
#
CONFIG_SERIAL_CORE=y
CONFIG_SERIAL_CORE_CONSOLE=y
CONFIG_SERIAL_CPM=y
CONFIG_SERIAL_CPM_CONSOLE=y
CONFIG_SERIAL_CPM_SCC1=y
CONFIG_SERIAL_CPM_SCC2=y
CONFIG_SERIAL_CPM_SCC3=y
CONFIG_SERIAL_CPM_SCC4=y
CONFIG_SERIAL_CPM_SMC1=y
CONFIG_SERIAL_CPM_SMC2=y

#
# Watchdog Cards
#
CONFIG_HW_RANDOM=y

#
# I2C support
#
CONFIG_I2C=y

#
# I2C Hardware Bus support
#
CONFIG_I2C_MPC8260=y

#
# SPI support
#
CONFIG_SPI=y
CONFIG_SPI_MASTER=y

#
# USB support
#
CONFIG_USB_ARCH_HAS_HCD=y
CONFIG_USB_ARCH_HAS_OHCI=y
CONFIG_USB_ARCH_HAS_EHCI=y

#
# LED devices
#
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y

#
# Real Time Clock
#
CONFIG_RTC_LIB=y
CONFIG_RTC_CLASS=y
CONFIG_RTC_HCTOSYS=y
CONFIG_RTC_HCTOSYS_DEVICE="rtc0"

#
# RTC interfaces
#
CONFIG_RTC_INTF_PROC=y
CONFIG_RTC_INTF_DEV=y

#
# RTC drivers
#
CONFIG_RTC_DRV_PCF8563=y

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
CONFIG_RAMFS=y

#
# Miscellaneous filesystems
#
CONFIG_CRAMFS=y

#
# Partition Types
#
CONFIG_PARTITION_ADVANCED=y

#
# Native Language Support
#
CONFIG_FEC_ENET=y

#
# CPM2 Options
#
CONFIG_FCC1_ENET=y
CONFIG_FCC2_ENET=y

#
# Library routines
#
CONFIG_ZLIB_INFLATE=y
CONFIG_REED_SOLOMON=y
CONFIG_REED_SOLOMON_DEC16=y

#
# Kernel hacking
#
CONFIG_LOG_BUF_SHIFT=14


My Linux log :
==============================================================
Linux version 2.6.19.2 (user@desktop) (gcc version 4.3.3 (GCC) ) #73
PREEMPT Fri
 Jul 17 13:40:20 EDT 2009
Microsys PM82x PowerPC port
arch/ppc/syslib/m82xx_pci.c: The PCI bus is 66666666 Mhz.
Waiting 0.5 seconds after deasserting RST...
Zone PFN ranges:
  DMA             0 ->    32768
  Normal      32768 ->    32768
early_node_map[1] active PFN ranges
    0:        0 ->    32768
Built 1 zonelists.  Total pages: 32512
Kernel command line: console=ttyCPM1,115200n8
ip=169.254.149.100:169.254.149.154
::255.255.255.0:pm828:eth0:off panic=1
PID hash table entries: 512 (order: 9, 2048 bytes)
cpm_uart: console: compat mode
Dentry cache hash table entries: 16384 (order: 4, 65536 bytes)
Inode-cache hash table entries: 8192 (order: 3, 32768 bytes)
Memory: 128384k available (1176k kernel code, 276k data, 100k init, 0k
highmem)
Mount-cache hash table entries: 512
NET: Registered protocol family 16
pm82x: Init
PCI: Probing PCI hardware
PCI: Cannot allocate resource region 0 of device 0000:00:00.0
PCI: Cannot allocate resource region 1 of device 0000:00:00.0
Generic PHY: Registered new driver
NET: Registered protocol family 2
IP route cache hash table entries: 1024 (order: 0, 4096 bytes)
TCP established hash table entries: 4096 (order: 2, 16384 bytes)
TCP bind hash table entries: 2048 (order: 1, 8192 bytes)
TCP: Hash tables configured (established 4096 bind 2048)
TCP reno registered
io scheduler noop registered (default)
Serial: CPM driver $Revision: 0.02 $
ttyCPM0 at MMIO 0xf0011a80 (irq = 4) is a CPM UART
ttyCPM1 at MMIO 0xf0011a90 (irq = 5) is a CPM UART
ttyCPM2 at MMIO 0xf0011a00 (irq = 40) is a CPM UART
ttyCPM3 at MMIO 0xf0011a20 (irq = 41) is a CPM UART
ttyCPM4 at MMIO 0xf0011a40 (irq = 42) is a CPM UART
ttyCPM5 at MMIO 0xf0011a60 (irq = 43) is a CPM UART
LXT970: Registered new driver
LXT971: Registered new driver
fs_enet.c:v1.0 (Aug 8, 2005)
NFTL driver: nftlcore.c $Revision: 1.98 $, nftlmount.c $Revision: 1.41
$
PM82x: No supported flash chips found!
No valid DiskOnChip devices found
eth0: FCC ENET Version 0.3, 00:40:42:81:26:59
eth1: FCC ENET Version 0.3, 00:40:42:41:26:59
TCP cubic registered
drivers/rtc/hctosys.c: unable to open rtc device (rtc0)
IP-Config: Complete:
      device=eth0, addr=169.254.149.100, mask=255.255.255.0,
gw=255.255.255.255,
     host=pm828, domain=, nis-domain=(none),
     bootserver=169.254.149.154, rootserver=169.254.149.154, rootpath=
VFS: Cannot open root device "<NULL>" or unknown-block(0,0)
Please append a correct "root=" boot option
Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-
block(0,0)
 <0>Rebooting in 1 seconds..