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Old 11-14-2012, 03:14 PM   #94
dos1
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Posts: 92
Karma: 364538
Join Date: Oct 2012
Location: Poznań, Poland
Device: Kindle Paperwhite
Quote:
Originally Posted by h1uke View Post
u-boot environment and supported commands:
Spoiler:
Code:
uboot > printenv
bootdelay=1
baudrate=115200
loadaddr=0x70800000
bootcmd=bootm 0x41000
failbootcmd=panic
loglevel=5
bootcmd_diags=bootm 0xE41000
bootcmd_factory=bist halt
bootcmd_fastboot=bist fastboot
stdin=serial
stdout=logbuff
stderr=logbuff
post_hotkeys=0
bootargs=

Environment size: 253/1020 bytes
Environment size: 253/1020 bytes
uboot >

uboot > help
?       - alias for 'help'
bist    - start Built In Self Test
boot    - boot default, i.e., run 'bootcmd'
bootd   - boot default, i.e., run 'bootcmd'
bootm   - boot application image from memory
go      - start application at address 'addr'
help    - print online help
idme    - idme    - Set nv ram variables


log     - manipulate logbuffer
printenv- print environment variables
reset   - Perform RESET of the CPU
run     - run commands in an environment variable
setenv  - set environment variables
version - print monitor version
uboot >
Could you please check if issuing "setenv bootargs parameters" command before booting would change kernel cmdline? (environment variables in u-boot should last only until next reboot). Also, could you check what "bist fastboot" does? (if it'll appear to boot fastboot, then don't forget to connect usb cable in order to check if it works ) Those two things seems to be most interesting for me.

And now, thing not necessarily for you, but for everyone who can help - could someone prepare instructions for connecting PW with serial cable for someone who never did anything like that before? It's a disadvantage of owning only open devices - you can't learn how to obtain access to them, cause you have it since beginning
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