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Re: questions about early-printk

To: dfsd df <tomcs163@yahoo.com.cn>
Subject: Re: questions about early-printk
From: Ralf Baechle <ralf@linux-mips.org>
Date: Mon, 4 Apr 2005 12:01:52 +0100
Cc: linux-mips@linux-mips.org
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On Mon, Apr 04, 2005 at 12:49:53PM +0800, dfsd df wrote:

> Hi:
>   Had somebody used early-printk? Now, I'm porting
> linux to a MIPS machine under instructions of "Linux
> MIPS Porting Guide" from junsun.net.

There's an updated version in the www.linux-mips.org wiki.

> But at the first step, I want to modify the source
> code of the barebone program to display "helloworld".
> 
> The program uses memory map addr as the UART device's
> "base addr",and access the UART by adding offset to
> this "base addr".
> 
> The "base addr" is assigned to a constant value. and
> from the other early-printk patchs, the value of "base
> addr" are not equals. So I want to know can I assign
> the right value to this "base addr"?

You haven't even mentioned what hardware you're using so don't expect
answer ...

  Ralf

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