"Plug Computing"
Charles Jones
charles.jones at ciscolearning.org
Tue Apr 7 17:42:16 MST 2009
If there is one it is internal and there is no port designed into the
enclosure to get to it. It does have various memorycard slots.
Theoretically if you are using the NAND flash for the filesystem you
shouldn't need RAID unless you mean for just storage expansion+speed
purposes.
-Charles
Steve Phariss wrote:
> I was looking at these and have a question... does this model have a
> sata II connecter? the block diagrams seem to say it does, so I am
> thinking you could interface a faster HD interface (raid???)
>
> Steve
>
> On Sat, Apr 4, 2009 at 4:20 PM, Charles Jones
> <charles.jones at ciscolearning.org
> <mailto:charles.jones at ciscolearning.org>> wrote:
>
> I received my SheevaPlug computer on Friday. Here are some pics of
> what
> I got: http://www.the-ownage.com/?p=830
> I have noticed that there are several other companies now using this
> exact same model, and basically re-selling them as fancy NAS devices.
> Here is some more info on that:
> http://www.linuxdevices.com/news/NS9634061300.html (the list of
> similar
> products is near the bottom).
>
> I havn't really gotten a chance to put it through its paces yet, as I
> have been slowed down by trying to compile the uvcvideo module so
> that I
> can plug in a usb 2.0 web cam for testing some video-security
> applications I am working on.
>
> Since I'm ssh'd into it now, I will just cut and paste some stuff:
>
> root at debian:~# uname -a
> Linux debian 2.6.22.18 #1 Thu Mar 19 14:46:22 IST 2009 armv5tejl
> GNU/Linux
>
> root at debian:~# cat /proc/cpuinfo
> Processor : ARM926EJ-S rev 1 (v5l)
> BogoMIPS : 1192.75
> Features : swp half thumb fastmult edsp
> CPU implementer : 0x56
> CPU architecture: 5TE
> CPU variant : 0x2
> CPU part : 0x131
> CPU revision : 1
> Cache type : write-back
> Cache clean : cp15 c7 ops
> Cache lockdown : format C
> Cache format : Harvard
> I size : 16384
> I assoc : 4
> I line length : 32
> I sets : 128
> D size : 16384
> D assoc : 4
> D line length : 32
> D sets : 128
>
> Hardware : Feroceon-KW
> Revision : 0000
> Serial : 0000000000000000
>
> root at debian:~# cat /proc/mtd
> dev: size erasesize name
> mtd0: 00400000 00020000 "uImage"
> mtd1: 1fb00000 00020000 "rootfs"
>
> root at debian:~# df -h
> Filesystem Size Used Avail Use% Mounted on
> rootfs 507M 329M 179M 65% /
> tmpfs 252M 0 252M 0% /lib/init/rw
> varrun 252M 36K 252M 1% /var/run
> varlock 252M 0 252M 0% /var/lock
> udev 252M 8.0K 252M 1% /dev
> tmpfs 252M 0 252M 0% /dev/shm
> tmpfs 252M 0 252M 0% /var/cache/apt
> (Note that when I received the unit the FS was only about 23% full, I
> have since then installed kernel-source and other packages).
>
> Here are the options available in the "uboot" pre-boot environment:
> Marvell>> ?
> ? - alias for 'help'
> base - print or set address offset
> boot - boot default, i.e., run 'bootcmd'
> bootd - boot default, i.e., run 'bootcmd'
> bootext2 dev:boot_part1,boot_part2 addr boot_image linux_dev_name
> bootm - boot application image from memory
> bootp - boot image via network using BootP/TFTP protocol
> bubt - Burn an image on the Boot Nand Flash.
> chpart - change active partition
> cmp - memory compare
> cmpm - Compare Memory
> cp - memory copy
> cpumap - Display CPU memory mapping settings.
> crc32 - checksum calculation
> date - get/set/reset date & time
> dclk - Display the MV device CLKs.
> dhcp - invoke DHCP client to obtain IP/boot params
> diskboot- boot from IDE device
> echo - echo args to console
> eeprom - EEPROM sub-system
> erase - erase FLASH memory
> ext2load- load binary file from a Ext2 filesystem
> ext2ls - list files in a directory (default /)
> fatinfo - print information about filesystem
> fatload - load binary file from a dos filesystem
> fatls - list files in a directory (default /)
> fi - Find value in the memory.
> flinfo - print FLASH memory information
> fsinfo - print information about filesystems
> fsload - load binary file from a filesystem image
> g - start application at cached address 'addr'(default addr
> 0x40000)
> go - start application at address 'addr'
> help - print online help
> icrc32 - checksum calculation
> ide - IDE sub-system
> iloop - infinite loop on address range
> imd - i2c memory display
> imm[.b, .s, .w, .l] - i2c memory modify (auto-incrementing)
> imw - memory write (fill)
> inm - memory modify (constant address)
> iprobe - probe to discover valid I2C chip addresses
> ir - reading and changing MV internal register values.
> loop - infinite loop on address range
> ls - list files in a directory (default /)
> map - Diasplay address decode windows
> md - memory display
> me - PCI master enable
> mm - memory modify (auto-incrementing)
> mp - map PCI BAR
> mtdparts- define flash/nand partitions
> mtest - simple RAM test
> mv_diag - perform board diagnostics
> mv_diag
> - display all available tests
> mv_diag all
> - run all available tests
> mv_diag test1
> - run specified test
> mw - memory write (fill)
> nand - NAND sub-system
> nboot - boot from NAND device
> nbubt - Burn a boot loader image on the Boot Nand Flash.
> nm - memory modify (constant address)
> pci - list and access PCI Configuration Space
> phyRead - Read PCI-E Phy register
> pciePhyWrite - Write PCI-E Phy register
> phyRead - Read Phy register
> phyWrite - Write Phy register
> ping - send ICMP ECHO_REQUEST to network host
> printenv- print environment variables
> protect - enable or disable FLASH write protection
> rarpboot- boot image via network using RARP/TFTP protocol
> rcvr - Satrt recovery process (Distress Beacon with TFTP server)
> reset - Perform RESET of the CPU
> resetenv - Return all environment variable to default.
> run - run commands in an environment variable
> saveenv - save environment variables to persistent storage
> se - PCI Slave enable
> setenv - set environment variables
> sflash - read, write or erase the external SPI Flash.
> sg - scanning the PHYs status
> sp - Scan PCI bus.
> tftpboot- boot image via network using TFTP protocol
> usb - USB sub-system
> usbboot - boot from USB device
> version - print monitor version
>
>
>
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