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Re: [ts-7000] Mangled baud rate on TS7200 2.6.34 console on ttyAM1 in ea

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Subject: Re: [ts-7000] Mangled baud rate on TS7200 2.6.34 console on ttyAM1 in early init stages
From: Petr Štetiar <>
Date: Mon, 27 Dec 2010 13:45:34 +0100
William C. Landolina <> [2010-12-26 16:05:25]:

> Thanks, but EARLY_UART2 is already set in my configuration .  The only place
> EARLY_UART seems to be used is in the decompressor which is putting out its
> messages successfully.  Grepping in my kernel doesnât show any other place
> that the EARLY_UART configuration is used.  It is right after the
> decompressor finishes and jumps to the actual kernel that output gets
> garbled.

Yes, you're correct. I didn't checked what's this config option doing, I've
just assumed, that it will enable the clock for the UARTs and UARTBAUD bit
also, but apparently it didn't :-)

Anyway, there were two patches[1,2] from Lennert which should fix your issue.
I don't have time to rebase and test them now(will do it in week or two), but
patches against my kernel GitHub repository[3] are always welcome.

1. 
http://ynezz.ibawizard.net/ts72xx/linux-kernel/2.6.24.y/ep93xx-serial-uartbaud.diff
2. 
http://ynezz.ibawizard.net/ts72xx/linux-kernel/2.6.24.y/ep93xx-serial-clocks.diff
3. https://github.com/ynezz/linux-2.6

-- ynezz


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