From: York Sun <yorksun@freescale.com>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH 1/7] powerpc/mpc8xxx: Enable entering DDR debugging by key press
Date: Tue, 8 Jan 2013 11:24:10 -0800 [thread overview]
Message-ID: <50EC725A.4010505@freescale.com> (raw)
In-Reply-To: <20130108063532.117F6200732@gemini.denx.de>
On 01/07/2013 10:35 PM, Wolfgang Denk wrote:
> Dear York Sun,
>
> In message <1357323245-12455-1-git-send-email-yorksun@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
prev parent reply other threads:[~2013-01-08 19:24 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-04 18:13 [U-Boot] [PATCH 1/7] powerpc/mpc8xxx: Enable entering DDR debugging by key press York Sun
2013-01-04 18:14 ` [U-Boot] [PATCH 2/7] Move DDR command parsing to separate function York Sun
2013-01-04 18:14 ` [U-Boot] [PATCH 3/7] Fix data stage name matching issue York Sun
2013-01-04 18:14 ` [U-Boot] [PATCH 4/7] Add copy command to FSL DDR interactive York Sun
2013-01-04 18:14 ` [U-Boot] [PATCH 5/7] README.fsl-ddr typos and update to reflect hotkey York Sun
2013-01-04 18:14 ` [U-Boot] [PATCH 6/7] getenv_f() env variable exist w/o needing a buffer York Sun
2013-01-04 22:06 ` Wolfgang Denk
2013-01-04 23:08 ` James Yang
2013-01-05 6:23 ` Wolfgang Denk
2013-01-07 17:46 ` [U-Boot] [u-boot-release] " Timur Tabi
2013-01-04 18:14 ` [U-Boot] [PATCH 7/7] powerpc/mpc8xxx: FSL DDR debugger auto run of stored commands York Sun
2013-01-08 6:35 ` [U-Boot] [PATCH 1/7] powerpc/mpc8xxx: Enable entering DDR debugging by key press Wolfgang Denk
2013-01-08 6:39 ` sun york-R58495
2013-01-08 19:24 ` York Sun [this message]
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