Notas sobre el bootloader, U-Boot. Esta una versión levemente modificada para CSM1200.


CSM1201 # help
?       - alias for 'help'
anx9030_init     - initial hdmi transmitter of Analogix 9030
autoscr - run script from memory
base    - print or set address offset
bdinfo  - print Board Info structure
bootm   - boot application image from memory
bootp   - boot image via network using BootP/TFTP protocol
check      - check memory value
cmp     - memory compare
cp      - memory copy
crc32   - checksum calculation
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
exit    - exit script
fatinfo - print information about filesystem
fatload - load binary file from a dos filesystem
fatls   - list files in a directory (default /)
flinfo  - print FLASH memory information
fpcd    - Display data on frontpanel led
fpcraw  - Display data on frontpanel led
go      - start application at address 'addr'
gpio    - gpio read/write bit
help    - print online help
i2c     - I2C sub-system
icrc32  - checksum calculation
ide     - IDE sub-system
iloop   - infinite loop on address range
imd     - i2c memory display
iminfo  - print header information for application image
imm     - i2c memory modify (auto-incrementing)
imw     - memory write (fill)
inm     - memory modify (constant address)
iprobe  - probe to discover valid I2C chip addresses
itest   - return true/false on integer compare
loadb   - load binary file over serial line (kermit mode)
loads   - load S-Record file over serial line
loady   - load binary file over serial line (ymodem mode)
logo    -display logo picture on TV Screenloop    - infinite loop on address range
md      - memory display
mm      - memory modify (auto-incrementing)
mtest   - simple RAM test
mw      - memory write (fill)
nand    - NAND sub-system
nboot   - boot from NAND device
nm      - memory modify (constant address)
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
reset   - Perform RESET of the CPU
run     - run commands in an environment variable
saveenv - save environment variables to persistent storage
setenv  - set environment variables
sfer    - spi flash erase
sfinfo  - display spi flash informations.
sfre    - spi flash read byte.
sfwr    - spi flash write byte
sleep   - delay execution for some time
test    - minimal test like /bin/sh
tftpboot- boot image via network using TFTP protocol
update - update your u-boot.bin / uImage / ramdiskg.img by USB storage device.
usb     - USB sub-system
usbboot - boot from USB device
usbtest - test USB host controller of ORION 1.4
version - print monitor version
writenum  - write string to eeprom for hunan Project'

Cosas interesantes: acceso a tv, hdmi, etc.

Se puede leer/bootear de usb (fat), serial, tftp, flash, nand, eeprom, i2c, ide (!)

Solo se puede escribir a nand (y a memoria obviamente)

El comando update está explicado en misc.img

Hay typos extraños como en hunan Project' en writenum o ramdiskg.img en update. Lo de initial hdmi transmitter es engrish puro.