Hi ,<br>Can anyone help me in this naive problem ?<br><br>I am using k 2.4.x based on ppc8245 based .I have a 8MB flash mapped to adress -0xff800000 .with 4 interleaved AMD flash devices each of size 2Mib .<br>Inte<br><br>
The problem I am facing are two :<br>I am not sure whether my flash read/write routines are working properly .(cfi_cmdset_0002.c routines )<br><br>I am able to detect my flash and do MTD partions too on the flash .But I cannot see that in my
<br>dev directory .I mean I should see something like /dev/mtd0 ...etc .<br><br>As I want to mount JFFS2 and I am not sure of whether i can mount any Filesystem without seeing it in /dev directory .<br><br>Is there way wherein I can invoke mtd->write/mtd/->
<br>read routines so that I can be sure that my CFI driver is working fine ?<br clear="all">these routines are mapped to amdstd_read/write routines in cfi_cmdset_0002 routine .<br> mtd->read = cfi_amdstd_read;<br> mtd->write = cfi_amdstd_write;
<br><br>Here is my dump<br><br>################################################################<br><br>LSP Revision 1<br>Starting kswapd<br>Disabling the Out Of Memory Killer<br>JFFS2 version 2.1. (C) 2001, 2002 Red Hat, Inc., designed by Axis Communications
<br> AB.<br>Serial driver version 5.05c (2001-07-08) with MANY_PORTS SHARE_IRQ SERIAL_PCI en<br>abled<br>ttyS00 at 0xfcf04500 (irq = 13) is a ST16650<br>RAMDISK driver initialized: 16 RAM disks of 8192K size 1024 blocksize
<br><br> AMD_FLASH_INIT called *aks *<br>physmap flash device: 800000 at ff800000 virtual address Number of erase regions<br>: 4<br>Primary Vendor Command Set: 0002 (AMD/Fujitsu Standard)<br>Primary Algorithm Table at 0040
<br>Alternative Vendor Command Set: 0000 (None)<br>No Alternate Algorithm Table<br>Vcc Minimum: 2.7 V<br>Vcc Maximum: 3.6 V<br>No Vpp line<br>Typical byte/word write timeout: 128 µs<br>Maximum byte/word write timeout: 256 µs
<br>Full buffer write not supported<br>Typical block erase timeout: 1024 ms<br>Maximum block erase timeout: 16384 ms<br>Chip erase not supported<br>Device size: 0x200000 bytes (2 MiB)<br>Flash Device Interface description: 0x0002
<br> - supports x8 and x16 via BYTE# with asynchronous interface<br>Max. bytes in buffer write: 0x1<br>Number of Erase Block Regions: 4<br> Erase Region #0: BlockSize 0x4000 bytes, 1 blocks<br> Erase Region #1: BlockSize 0x2000 bytes, 2 blocks
<br> Erase Region #2: BlockSize 0x8000 bytes, 1 blocks<br> Erase Region #3: BlockSize 0x10000 bytes, 31 blocks<br> Amd/Fujitsu Extended Query Table v1.3 at 0x0040<br>number of CFI chips: 4<br><br> in amdstd_setup 0:<br>
cfi_cmdset_0002: Disabling fast programming due to code brokenness. <br><br> in MTD Partitioning <5>No RedBoot partition table detected in phys_mapped_flash<br><br>Using physmap partition definition<br>Creating 3 MTD partitions on "phys_mapped_flash":
<br>0x00000000-0x00040000 : "foo-ets0"<br>mtd: Giving out device 0 to foo-ets0<br>0x00040000-0x001e0000 : "foo-ets1"<br>mtd: partition "agere-ets1" doesn't end on an erase block -- force read-only
<br>mtd: Giving out device 1 to foo-ets1<br>0x001e0000-0x00200000 : "foo-ets2"<br>mtd: partition "foo-ets2" doesn't start on an erase block boundary -- force re<br>ad-only<br>mtd: Giving out device 2 to foo-ets2
<br>NET4: Linux TCP/IP 1.0 for NET4.0<br>IP Protocols: ICMP, UDP, TCP, IGMP<br>IP: routing cache hash table of 512 buckets, 4Kbytes<br>TCP: Hash tables configured (established 4096 bind 8192)<br>IP-Config: No network devices available.
<br>NET4: Unix domain sockets 1.0/SMP for Linux NET4.0.<br>/dev/console mapped to mkdev 5: minor: 1<br>RAMDISK: Compressed image found at block 0<br>Freeing initrd memory: 1247k freed<br>VFS: Mounted root (ext2 filesystem) readonly.
<br>Freeing unused kernel memory: 76k init<br>calling sbin/init<br>init started: BusyBox v1.2.0 (2006.07.12-05:25+0000) multi-call binary<br>init started: BusyBox v1.2.0 (2006.07.12-05:25+0000) multi-call binary<br>Starting pid 8, console /dev/ttyS0: '/bin/ash'
<br><br><br><br>/ $ cd /dev<br>/dev $ ls<br>console loop2 loop7 ram1 ram14 ram4 ram9 urandom<br>full loop3 mem ram10 ram15 ram5 random zero<br>kmem loop4 null ram11 ram16 ram6 tty
<br>loop0 loop5 port ram12 ram2 ram7 tty0<br>loop1 loop6 ram0 ram13 ram3 ram8 ttyS0<br><br><br><br><br>################################################################<br><br><br>
#<br># Automatically generated make config: don't edit<br>#<br># CONFIG_UID16 is not set<br># CONFIG_RWSEM_GENERIC_SPINLOCK is not set<br>CONFIG_RWSEM_XCHGADD_ALGORITHM=y<br>CONFIG_HAVE_DEC_LOCK=y<br>CONFIG_GENERIC_ISA_DMA=y
<br><br>#<br># Code maturity level options<br>#<br>CONFIG_EXPERIMENTAL=y<br># CONFIG_ADVANCED_OPTIONS is not set<br><br>#<br># Loadable module support<br>#<br>CONFIG_MODULES=y<br># CONFIG_MODVERSIONS is not set<br>CONFIG_KMOD=y
<br><br>#<br># Platform support<br>#<br>CONFIG_PPC=y<br>CONFIG_PPC32=y<br>CONFIG_6xx=y<br># CONFIG_40x is not set<br># CONFIG_440 is not set<br># CONFIG_POWER3 is not set<br># CONFIG_8xx is not set<br># CONFIG_8260 is not set
<br>CONFIG_PPC_STD_MMU=y<br># CONFIG_EMBEDDED_OOM_KILLER is not set<br># CONFIG_ALL_PPC is not set<br># CONFIG_APUS is not set<br># CONFIG_WILLOW is not set<br># CONFIG_CPCI690 is not set<br># CONFIG_PCORE is not set<br># CONFIG_POWERPMC250 is not set
<br># CONFIG_PPMC260 is not set<br># CONFIG_EV64260 is not set<br># CONFIG_SPRUCE is not set<br># CONFIG_MENF1 is not set<br># CONFIG_PUMA_A is not set<br># CONFIG_HXEB100 is not set<br># CONFIG_LOPEC is not set<br># CONFIG_MCPN765 is not set
<br># CONFIG_MVME5100 is not set<br># CONFIG_PPLUS is not set<br># CONFIG_PRPMC750 is not set<br># CONFIG_PRPMC800 is not set<br>CONFIG_SANDPOINT=y<br># CONFIG_POWERK2 is not set<br># CONFIG_ADIR is not set<br># CONFIG_K2 is not set
<br># CONFIG_PAL4 is not set<br># CONFIG_GEMINI is not set<br># CONFIG_ZX4500 is not set<br># CONFIG_MPC10X_STORE_GATHERING is not set<br># CONFIG_SANDPOINT_X3 is not set<br># CONFIG_SMP is not set<br># CONFIG_PREEMPT is not set
<br># CONFIG_IKCONFIG is not set<br># CONFIG_ALTIVEC is not set<br># CONFIG_TAU is not set<br>CONFIG_PPC_ISATIMER=y<br><br>#<br># General setup<br>#<br>CONFIG_MAX_POSIX_TIMERS=3000<br># CONFIG_HIGH_RES_TIMERS is not set<br>
# CONFIG_HIGHMEM is not set<br># CONFIG_ILATENCY is not set<br># CONFIG_ISA is not set<br># CONFIG_EISA is not set<br># CONFIG_SBUS is not set<br># CONFIG_MCA is not set<br>CONFIG_PCI=y<br>CONFIG_NET=y<br>CONFIG_SYSCTL=y<br>
CONFIG_SYSVIPC=y<br>CONFIG_SYSVIPC_SEMMNI=128<br>CONFIG_SYSVIPC_SEMMSL=250<br># CONFIG_BSD_PROCESS_ACCT is not set<br>CONFIG_MAX_USER_RT_PRIO=100<br>CONFIG_MAX_RT_PRIO=0<br>CONFIG_KCORE_ELF=y<br>CONFIG_BINFMT_ELF=y<br>CONFIG_MULTITHREADED_CORES=y
<br>CONFIG_KERNEL_ELF=y<br># CONFIG_BINFMT_MISC is not set<br># CONFIG_PCI_NAMES is not set<br># CONFIG_HOTPLUG is not set<br># CONFIG_PCMCIA is not set<br><br>#<br># Parallel port support<br>#<br># CONFIG_PARPORT is not set
<br>CONFIG_PPC_RTC=m<br># CONFIG_CMDLINE_BOOL is not set<br><br>#<br># Memory Technology Devices (MTD)<br>#<br>CONFIG_MTD=y<br>CONFIG_MTD_DEBUG=y<br>CONFIG_MTD_DEBUG_VERBOSE=2<br>CONFIG_MTD_PARTITIONS=y<br>CONFIG_MTD_CONCAT=y
<br>CONFIG_MTD_REDBOOT_PARTS=y<br>CONFIG_MTD_CMDLINE_PARTS=y<br><br>#<br># User Modules And Translation Layers<br>#<br># CONFIG_MTD_CHAR is not set<br># CONFIG_MTD_BLOCK is not set<br># CONFIG_MTD_BLOCK_RO is not set<br># CONFIG_FTL is not set
<br># CONFIG_NFTL is not set<br># CONFIG_INFTL is not set<br><br>#<br># RAM/ROM/Flash chip drivers<br>#<br>CONFIG_MTD_CFI=y<br>CONFIG_MTD_JEDECPROBE=y<br>CONFIG_MTD_GEN_PROBE=y<br>CONFIG_MTD_CFI_ADV_OPTIONS=y<br># CONFIG_MTD_CFI_NOSWAP is not set
<br>CONFIG_MTD_CFI_BE_BYTE_SWAP=y<br># CONFIG_MTD_CFI_LE_BYTE_SWAP is not set<br>CONFIG_MTD_CFI_GEOMETRY=y<br># CONFIG_MTD_CFI_B1 is not set<br>CONFIG_MTD_CFI_B2=y<br># CONFIG_MTD_CFI_B4 is not set<br># CONFIG_MTD_CFI_B8 is not set
<br># CONFIG_MTD_CFI_I1 is not set<br># CONFIG_MTD_CFI_I2 is not set<br>CONFIG_MTD_CFI_I4=y<br># CONFIG_MTD_CFI_I8 is not set<br># CONFIG_MTD_CFI_INTELEXT is not set<br>CONFIG_MTD_CFI_AMDSTD=y<br># CONFIG_MTD_CFI_STAA is not set
<br># CONFIG_MTD_RAM is not set<br># CONFIG_MTD_ROM is not set<br># CONFIG_MTD_ABSENT is not set<br># CONFIG_MTD_OBSOLETE_CHIPS is not set<br><br>#<br># Mapping drivers for chip access<br>#<br># CONFIG_MTD_COMPLEX_MAPPINGS is not set
<br>CONFIG_MTD_PHYSMAP=y<br># CONFIG_MTD_MOT_MVP is not set<br># CONFIG_MTD_POWERPLUS is not set<br># CONFIG_MTD_K2 is not set<br><br>#<br># Self-contained MTD device drivers<br>#<br># CONFIG_MTD_PMC551 is not set<br># CONFIG_MTD_SLRAM is not set
<br># CONFIG_MTD_MTDRAM is not set<br># CONFIG_MTD_BLKMTD is not set<br><br>#<br># Disk-On-Chip Device Drivers<br>#<br># CONFIG_MTD_DOC2000 is not set<br># CONFIG_MTD_DOC2001 is not set<br># CONFIG_MTD_DOC2001PLUS is not set
<br># CONFIG_MTD_DOCPROBE is not set<br><br>#<br># Serial Flash Device Drivers<br>#<br># CONFIG_MTD_SFLASH is not set<br><br>#<br># NAND Flash Device Drivers<br>#<br># CONFIG_MTD_NAND is not set<br><br>#<br># Plug and Play configuration
<br>#<br># CONFIG_PNP is not set<br><br>#<br># Block devices<br>#<br># CONFIG_BLK_DEV_FD is not set<br># CONFIG_BLK_CPQ_DA is not set<br># CONFIG_BLK_CPQ_CISS_DA is not set<br># CONFIG_BLK_DEV_DAC960 is not set<br># CONFIG_BLK_DEV_UMEM is not set
<br># CONFIG_BLK_DEV_LOOP is not set<br># CONFIG_BLK_DEV_NBD is not set<br>CONFIG_BLK_DEV_RAM=y<br>CONFIG_BLK_DEV_RAM_SIZE=8192<br>CONFIG_BLK_DEV_INITRD=y<br># CONFIG_BLK_STATS is not set<br><br>#<br># Multi-device support (RAID and LVM)
<br>#<br># CONFIG_MD is not set<br><br>#<br># Cryptography support (CryptoAPI)<br>#<br># CONFIG_CRYPTO is not set<br><br>#<br># 128 bit blocksize<br>#<br><br>#<br># 64 bit blocksize<br>#<br><br>#<br># Deprecated<br>#<br><br>
#<br># Networking options<br>#<br>CONFIG_PACKET=y<br># CONFIG_PACKET_MMAP is not set<br># CONFIG_NETLINK_DEV is not set<br>CONFIG_NETFILTER=y<br># CONFIG_NETFILTER_DEBUG is not set<br># CONFIG_FILTER is not set<br># CONFIG_NET_NEIGH_DEBUG is not set
<br># CONFIG_NET_RESTRICTED_REUSE is not set<br>CONFIG_UNIX=y<br>CONFIG_INET=y<br># CONFIG_IPSEC is not set<br>CONFIG_IP_MULTICAST=y<br># CONFIG_IP_ADVANCED_ROUTER is not set<br>CONFIG_IP_PNP=y<br># CONFIG_IP_PNP_DHCP is not set
<br># CONFIG_IP_PNP_BOOTP is not set<br># CONFIG_IP_PNP_RARP is not set<br># CONFIG_NET_IPIP is not set<br># CONFIG_NET_IPGRE is not set<br># CONFIG_IP_MROUTE is not set<br># CONFIG_ARPD is not set<br># CONFIG_INET_ECN is not set
<br># CONFIG_SYN_COOKIES is not set<br>CONFIG_IPV4_IPSEC_TUNNEL=y<br><br>#<br># IP: Netfilter Configuration<br>#<br># CONFIG_IP_NF_CONNTRACK is not set<br># CONFIG_IP_NF_QUEUE is not set<br># CONFIG_IP_NF_IPTABLES is not set
<br># CONFIG_IP_NF_ARPTABLES is not set<br># CONFIG_IP_NF_COMPAT_IPCHAINS is not set<br># CONFIG_IP_NF_COMPAT_IPFWADM is not set<br>CONFIG_IPV6=m<br># CONFIG_IPV6_DEBUG is not set<br># CONFIG_IPV6_IM is not set<br># CONFIG_IPV6_ZONE is not set
<br># CONFIG_IPV6_DROP_FAKE_V4MAPPED is not set<br># CONFIG_IPV6_6TO4_NEXTHOP is not set<br># CONFIG_IPV6_PRIVACY is not set<br># CONFIG_IPV6_ANYCAST is not set<br># CONFIG_IPV6_ISATAP is not set<br># CONFIG_IPV6_PREFIXLIST is not set
<br># CONFIG_IPV6_SUBTREES is not set<br># CONFIG_IPV6_ROUTER_PREF is not set<br># CONFIG_IPV6_MLD6_ALL_DONE is not set<br># CONFIG_IPV6_NODEINFO is not set<br><br>#<br># IPv6: Netfilter Configuration<br>#<br># CONFIG_IP6_NF_QUEUE is not set
<br># CONFIG_IP6_NF_IPTABLES is not set<br>CONFIG_IPV6_IPSEC_TUNNEL=y<br># CONFIG_IPV6_IPV6_TUNNEL is not set<br># CONFIG_IPV6_MOBILITY is not set<br># CONFIG_KHTTPD is not set<br># CONFIG_ATM is not set<br># CONFIG_VLAN_8021Q is not set
<br><br>#<br># <br>#<br># CONFIG_IPX is not set<br># CONFIG_ATALK is not set<br><br>#<br># Appletalk devices<br>#<br># CONFIG_DECNET is not set<br># CONFIG_BRIDGE is not set<br># CONFIG_X25 is not set<br># CONFIG_LAPB is not set
<br># CONFIG_LLC is not set<br># CONFIG_NET_DIVERT is not set<br># CONFIG_ECONET is not set<br># CONFIG_WAN_ROUTER is not set<br># CONFIG_NET_FASTROUTE is not set<br># CONFIG_NET_HW_FLOWCONTROL is not set<br><br>#<br># QoS and/or fair queueing
<br>#<br># CONFIG_NET_SCHED is not set<br><br>#<br># Network testing<br>#<br># CONFIG_NET_PKTGEN is not set<br><br>#<br># ATA/IDE/MFM/RLL support<br>#<br># CONFIG_IDE is not set<br># CONFIG_BLK_DEV_IDE_MODES is not set<br>
# CONFIG_BLK_DEV_HD is not set<br><br>#<br># SCSI support<br>#<br># CONFIG_SCSI is not set<br><br>#<br># Fusion MPT device support<br>#<br># CONFIG_FUSION_BOOT is not set<br># CONFIG_FUSION_ISENSE is not set<br># CONFIG_FUSION_CTL is not set
<br># CONFIG_FUSION_LAN is not set<br><br>#<br># IEEE 1394 (FireWire) support (EXPERIMENTAL)<br>#<br># CONFIG_IEEE1394 is not set<br><br>#<br># I2O device support<br>#<br># CONFIG_I2O is not set<br><br>#<br># Network device support
<br>#<br># CONFIG_NETDEVICES is not set<br><br>#<br># Amateur Radio support<br>#<br># CONFIG_HAMRADIO is not set<br><br>#<br># IrDA (infrared) support<br>#<br># CONFIG_IRDA is not set<br><br>#<br># ISDN subsystem<br>#<br>
# CONFIG_ISDN is not set<br><br>#<br># Old CD-ROM drivers (not SCSI, not IDE)<br>#<br># CONFIG_CD_NO_IDESCSI is not set<br><br>#<br># Console drivers<br>#<br># CONFIG_VGA_CONSOLE is not set<br><br>#<br># Frame-buffer support
<br>#<br># CONFIG_FB is not set<br><br>#<br># Input core support<br>#<br>CONFIG_INPUT=m<br>CONFIG_INPUT_KEYBDEV=m<br># CONFIG_INPUT_MOUSEDEV is not set<br># CONFIG_INPUT_JOYDEV is not set<br>CONFIG_INPUT_EVDEV=m<br><br>#<br>
# Macintosh device drivers<br>#<br><br>#<br># Character devices<br>#<br># CONFIG_VT is not set<br>CONFIG_SERIAL=y<br>CONFIG_SERIAL_CONSOLE=y<br># CONFIG_SERIAL_EXTENDED is not set<br># CONFIG_SERIAL_NONSTANDARD is not set
<br># CONFIG_UNIX98_PTYS is not set<br># CONFIG_HVC_CONSOLE is not set<br># CONFIG_IXP2000_SLAVE is not set<br><br>#<br># I2C support<br>#<br># CONFIG_I2C is not set<br><br>#<br># Mice<br>#<br># CONFIG_BUSMOUSE is not set
<br># CONFIG_MOUSE is not set<br><br>#<br># Joysticks<br>#<br># CONFIG_INPUT_GAMEPORT is not set<br># CONFIG_INPUT_SERIO is not set<br><br>#<br># Joysticks<br>#<br># CONFIG_QIC02_TAPE is not set<br><br>#<br># Watchdog Cards
<br>#<br># CONFIG_WATCHDOG is not set<br># CONFIG_LINUX_LED is not set<br># CONFIG_AMD_PM768 is not set<br># CONFIG_NVRAM is not set<br># CONFIG_RTC is not set<br># CONFIG_DTLK is not set<br># CONFIG_R3964 is not set<br># CONFIG_APPLICOM is not set
<br><br>#<br># Ftape, the floppy tape device driver<br>#<br># CONFIG_FTAPE is not set<br># CONFIG_AGP is not set<br># CONFIG_DRM is not set<br><br>#<br># Multimedia devices<br>#<br># CONFIG_VIDEO_DEV is not set<br><br>#<br>
# File systems<br>#<br># CONFIG_QUOTA is not set<br>CONFIG_AUTOFS_FS=m<br>CONFIG_AUTOFS4_FS=m<br># CONFIG_REISERFS_FS is not set<br># CONFIG_ADFS_FS is not set<br># CONFIG_AFFS_FS is not set<br># CONFIG_HFS_FS is not set<br>
# CONFIG_BEFS_FS is not set<br># CONFIG_BFS_FS is not set<br>CONFIG_EXT3_FS=m<br>CONFIG_JBD=m<br># CONFIG_JBD_DEBUG is not set<br># CONFIG_FAT_FS is not set<br># CONFIG_EFS_FS is not set<br># CONFIG_JFFS_FS is not set<br>
CONFIG_JFFS2_FS=y<br>CONFIG_JFFS2_FS_DEBUG=2<br>CONFIG_JFFS2_FS_NAND=y<br># CONFIG_CRAMFS is not set<br># CONFIG_POSIX_MQUEUE_FS is not set<br># CONFIG_TMPFS is not set<br>CONFIG_RAMFS=y<br># CONFIG_ISO9660_FS is not set<br>
# CONFIG_JFS_FS is not set<br># CONFIG_MINIX_FS is not set<br># CONFIG_VXFS_FS is not set<br># CONFIG_NTFS_FS is not set<br># CONFIG_HPFS_FS is not set<br>CONFIG_PROC_FS=y<br># CONFIG_DEVFS_FS is not set<br># CONFIG_QNX4FS_FS is not set
<br>CONFIG_ROMFS_FS=m<br>CONFIG_EXT2_FS=y<br># CONFIG_SYSV_FS is not set<br># CONFIG_UDF_FS is not set<br># CONFIG_UFS_FS is not set<br># CONFIG_XFS_FS is not set<br># Network File Systems<br># CONFIG_CODA_FS is not set<br>
# CONFIG_INTERMEZZO_FS is not set<br># CONFIG_NFS_FS is not set<br># CONFIG_NFSD is not set<br># CONFIG_SUNRPC is not set<br># CONFIG_LOCKD is not set<br># CONFIG_SMB_FS is not set<br># CONFIG_NCP_FS is not set<br># CONFIG_ZISOFS_FS is not set
<br># Partition Types<br><br># CONFIG_PARTITION_ADVANCED is not set<br>CONFIG_MSDOS_PARTITION=y<br># CONFIG_SMB_NLS is not set<br># CONFIG_NLS is not set<br><br>#<br># Sound<br>#<br># CONFIG_SOUND is not set<br><br>#<br># USB support
<br>#<br># CONFIG_USB is not set<br><br>#<br># Bluetooth support<br>#<br># CONFIG_BLUEZ is not set<br><br>#<br># Kernel tracing<br>#<br># CONFIG_TRACE is not set<br><br>#<br># Library routines<br>#<br>CONFIG_ZLIB_INFLATE=y
<br>CONFIG_ZLIB_DEFLATE=y<br><br>#<br># Kernel hacking<br>#<br># CONFIG_DEBUG_KERNEL is not set<br># CONFIG_SERIAL_TEXT_DEBUG is not set<br><br><br>################################################################<br><br>Can any happy soul let me know :--
<br><br>1)How to mount jffs2 on this flash and also to test mtd->read/write routines ?<br><br>2) Is it ok not to see mtd0.. partions in /dev directory .<br><br>3 ) Where do I register the mtd partitions to get them noticed here ??
<br><br><br>Thanks<br>Arun<br><br>