Re: How to disable message "Uncompressing linux..." on kernel start?

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On 18 September 2012 15:37, Jassi Brar <jaswinder.singh@xxxxxxxxxx> wrote:
> On 18 September 2012 12:09, Maximilian Schwerin
> <Maximilian.Schwerin@xxxxxxxxx> wrote:
>> Hi all,
>>
>> I have been convinced that my patch for disabling the message
>> "Uncompressing linux..." on kernel start was not all that good an idea.
>> As the problem still remains an issue for me and I'd like to find a fix
>> for everyone I'd like to ask for pointers where or how to fix this.
>>
>> To sum up my problem: I'm using the primary serial port on an OMAP3 as a
>> debug console for development. In production we set the u-boot silent
>> option which disables all kernel logging to this serial port. The only
>> kernel message that remains is "Uncompressing linux..." at the very
>> beginning. As we connect an external device via this port in production
>> environments this is not acceptable.
>>
> Perhaps adding config choice under "Kernel low-level debugging port",
> to select the UART port to direct the early prints to, would help.
> Like some platforms already do. See DEBUG_CLPS711X_UART1/2 ,
> DEBUG_MSM_UART1/2/3 etc.

On a second thought, I think we need a new config independent of DEBUG_LL.
Something like what Samsung code does with symbol
S3C_LOWLEVEL_UART_PORT in arch/arm/plat-samsung/Kconfig
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