[U-Boot] [PATCH 1/7] powerpc/mpc8xxx: Enable entering DDR debugging by key press

[York Sun]

On 01/07/2013 10:35 PM, Wolfgang Denk wrote:
> Dear York Sun,
> 
> In message <1357323245-12455-1-git-send-email-yorksun at freescale.com> you wrote:
>> ...
>> CONFIG_FSL_DDR_INTERACTIVE needs to be defined in header file. To enter the
>> debug mode by key press, press key 'd' shortly after reset, like one would
>> do to abort auto booting. It is fixed to lower case 'd' at this moment.
> ...
>> --- a/doc/README.fsl-ddr
>> +++ b/doc/README.fsl-ddr
>> @@ -268,6 +268,13 @@ be activated by saving an environment variable "ddr_interactive". The value
>>  doesn't matter. Once activated, U-boot prompts "FSL DDR>" before enabling DDR
>>  controller. The available commands can be seen by typing "help".
>>  
>> +Another way to enter debug mode without using environment variable is to send
>> +a key press during boot, like one would do to abort auto boot. To save booting
>> +time, no additioal delay is added so the window to send the key press is very
>> +short. For example, user can send the key press using reset command followed by
>> +hitting enter key twice. In case of power on reset, user can keep hitting any
>> +key while applying the power.
> 
> The documentation here does not mention the 'd' key at all.  Guess it
> should?
> 
>
It should. And James found my error and fixed in the patch 5/7 in this
series.

York