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add cleaner u-boot diag mode entry

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Jon Sands 2020-11-19 03:47:13 -05:00
parent 99e1c562c8
commit 2f6c8ddae6
1 changed files with 15 additions and 17 deletions
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32
docs/hidden.md
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@ -1,4 +1,3 @@
# Hidden Brocade Dev Stuff
This is a collection of hidden tools, modes, and commands buried inside Brocade FastIron products.
@ -23,8 +22,9 @@ FCX3(config)#dm
cancel-flash-timeout set flash timeout to default
clear_boot_count Clear crash dump
cpld-reg-dump Dump the CPLD register
--More--
```
There's hundreds of other options. These are low level debug commands, so if you don't know what they do you can easily break your switch.
There's hundreds of options. These are low level debug commands, so if you don't know what they do you can easily break your switch.
**Note:** There's around ~700 commands that are completely hidden, they will not even show up using tab autocomplete like the above `dm` commands do. [Click here](https://fohdeesha.com/data/other/brocade/FastIron-Hidden.txt) for a full list of these commands. Many of these might delete your config, your licenses, lock the switch up, etc.
@ -57,40 +57,38 @@ You'll note the options are nearly identical to what's available in the bootload
All the newer switches that run linux (ICX6450, ICX6650, ICX7xxx) use u-boot as the bootloader. However it runs in a very locked down mode with only a few commands available. Thankfully after contacting Arris (who own Ruckus, who now owns Brocade), they published their u-boot [source code](https://sourceforge.net/arris/wiki/Projects/).
From analyzing their u-boot source, we are able to find some hidden environment variables that will force the switch to boot into fully unlocked u-boot. To do so, run the following in the bootloader:
From analyzing their u-boot source, we are able to find some hidden routines that will force the switch to boot into fully unlocked u-boot. To do so, run the following in the bootloader:
#### ICX6430 & ICX6450
```
setenv pp_init_enable 1
setenv diag_cmd_on 1
saveenv
manufacturing_diag enable
reset
## it will reboot into fully unlocked u-boot
## be sure to stop it in the bootloader (smash b)
## set it back to normal
setenv pp_init_enable
setenv diag_cmd_on
saveenv
manufacturing_diag disable
reset
```
#### ICX6650 & ICX7250 & ICX7450
#### ICX6650 & ICX7150 & ICX7250 & ICX7450 & ICX7750
```
setenv diag_mode_enable 1
saveenv
diagmode enable
reset
## it will reboot into fully unlocked u-boot
## be sure to stop it in the bootloader (smash b)
## set it back to normal
setenv diag_mode_enable
saveenv
diagmode disable
reset
```
#### ICX7650
#### ICX7650 & ICX7850
```
setenv diag_mode_on 1
saveenv
reset
## it will reboot into fully unlocked u-boot
## be sure to stop it in the bootloader (smash b)
## set it back to normal
setenv diag_mode_on
@ -98,5 +96,5 @@ saveenv
reset
```
#### ICX7150, ICX7750, ICX7850
Unknown, but most likely one of the three above. If you try all three, make sure to undo each one (follow the `back to normal` bit) before moving onto the next attempt.
#### ICX7550
Unknown, but most likely one of the above - just try each one until the command takes.