EdgeRouterLiteが来たのでとりあえずubootをメモっておく。

U-Boot 1.1.1 (UBNT Build ID: 4493936-g009d77b) (Build time: Sep 20 2012 - 15:48:51)

BIST check passed.
UBNT_E100 r1:2, r2:12, serial #: DC9FDB29ABD5
Core clock: 500 MHz, DDR clock: 266 MHz (532 Mhz data rate)
DRAM:  512 MB
Clearing DRAM....... done
Flash:  4 MB
Net:   octeth0, octeth1, octeth2

USB:   (port 0) scanning bus for devices... 1 USB Devices found
       scanning bus for storage devices...
  Device 0: Vendor:          Prod.: USB DISK 2.0     Rev: PMAP
            Type: Removable Hard Disk
            Capacity: 3700.6 MB = 3.6 GB (7579008 x 512)                                                                                                                                                                                     0 
Octeon ubnt_e100# help
?       - alias for 'help'
askenv  - get environment variables from stdin
autoscr - run script from memory
base    - print or set address offset
bootelf - Boot from an ELF image in memory
bootloaderupdate   - Update the bootloader in flash
bootloadervalidate   - Validate the bootloader image
bootoct - Boot from an Octeon Executive ELF image in memory
bootoctelf - Boot a generic ELF image in memory. NOTE: This command does not support
             simple executive applications, use bootoct for those.
bootoctlinux - Boot from a linux ELF image in memory
cmp     - memory compare
coninfo - print console devices and informations
cp      - memory copy
crc32   - checksum calculation
dhcp    - invoke DHCP client to obtain IP/boot params
echo    - echo args to console
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
fatloadalloc - load binary file from a dos filesystem, and allocate
          a named bootmem block for file data
fatls   - list files in a directory (default /)
flinfo  - print FLASH memory information
freeprint    - Print list of free bootmem blocks
go      - start application at address 'addr'
gunzip  - Uncompress an in memory gzipped file
help    - print online help
itest    - return true/false on integer compare
loadb   - load binary file over serial line (kermit mode)
loop    - infinite loop on address range
md      - memory display
md5   - MD5 hash calculation
mii     - MII utility commands
mm      - memory modify (auto-incrementing)
mtest   - simple RAM test
mw      - memory write (fill)
namedalloc    - Allocate a named bootmem block
namedfree    - Free a named bootmem block
namedprint    - Print list of named bootmem blocks
nm      - memory modify (constant address)
ping    - send ICMP ECHO_REQUEST to network host
printenv- print environment variables
protect - enable or disable FLASH write protection
read64    - read 64 bit word from 64 bit address
read64b    - read 8 bit word from 64 bit address
read64l    - read 32 bit word from 64 bit address
read64s    - read 16 bit word from 64 bit address
read_cmp    - read and compare memory to val
reset   - Perform RESET of the CPU
run     - run commands in an environment variable
saveenv - save environment variables to persistent storage
setenv  - set environment variables
sleep   - delay execution for some time
tftpboot- boot image via network using TFTP protocol
ubntw      - ubntw commands
usb     - USB sub-system
version - print monitor version
write64    - write 64 bit word to 64 bit address
write64b    - write 8 bit word to 64 bit address
write64l    - write 32 bit word to 64 bit address
write64s    - write 16 bit word to 64 bit address
Octeon ubnt_e100# printenv
bootcmd=fatload usb 0 $loadaddr vmlinux.64;bootoctlinux $loadaddr coremask=0x3 root=/dev/sda2 rootdelay=15 rw rootsqimg=squashfs.img rootsqwdir=w mtdparts=phys_mapped_flash:512k(boot0),512k(boot1),64k@3072k(eeprom)
bootdelay=0
baudrate=115200
download_baudrate=115200
nuke_env=protect off $(env_addr) +$(env_size);erase $(env_addr) +$(env_size)
autoload=n
ethact=octeth0
loadaddr=0x9f00000
numcores=2
stdin=serial
stdout=serial
stderr=serial
env_addr=0x1fbfe000
env_size=0x2000
flash_base_addr=0x1f800000
flash_size=0x400000
uboot_flash_addr=0x1f880000
uboot_flash_size=0x70000
flash_unused_addr=0x1f8f0000
flash_unused_size=0x310000
bootloader_flash_update=bootloaderupdate

Environment size: 675/8188 bytes

ちなみにBigEndianでした。(ubootから適当なアドレスに何か値をwrite64してmd.bすればすぐわかる)

NetBSDのmips64/octeon対応状況は、mips64コア自体はok、octeon SoCはまだ、のままなのかな。
octeon自体はOpenBSD,FreeBSDに入っている。
OpenBSDはしゅうう先生ががんばってsgiとIIJのSEILからもってきたのがベース、FreeBSDはCavium Network由来のがベースになっている、と…