some question about linux kernel in embed system

[Pedro Luis D. L.]

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> Date: Fri, 17 Aug 2007 16:15:53 +0800
> From: lim at taicom.com.cn
> To: carcadiz at hotmail.com
> Subject: Re: RE: some question about linux kernel in embed system
> 
> thanks !
> how to pass the console parameter ? where is these?
> when I make menuconfig, there is Console drivers option, and i choose something at discretion. but the kernel is not go on!
> I need your help !
> This is my msn: lim.live at msn.com

You should modify the "bootargs" parameter in the u-boot console. U-boot passes this value to the kernel at boot time. Your "bootargs" parameter should include something like "console=ttyS0,115200" or similiar, where ttyS0 should be the console device's name (in MPC5200 is, for example, ttyPSC0) and 115200 is the baudrate used by the console to communicate with your host computer.

Regards,
Pedro.

> 
> 发件人： Pedro Luis D. L. 
> 发送时间： 2007-08-17  15:14:22 
> 收件人： lim at taicom.com.cn 
> 抄送： 
> 主题： RE: some question about linux kernel in embed system 
>  
> > Date: Fri, 17 Aug 2007 10:58:01 +0800
> > From: lim at taicom.com.cn
> 
> > hello everyone 
> > I am doing some embed system works.
> > Now I want to replant the linux-2.4.32 to my own system.
> > But there are some questions.First let me introduce my heardware:
> > I use powerpc+flash+sdram to buildup a mini system,use u-boot 1.1.4 as bootloader then I need to replant the kernel on it .
> > The linux-2.4.32 kernel which was made a uImage, is running in this mini system, the question is appear:
> >     Image Name:   Linux-2.4.32
> >    Created:      2007-08-16  21:31:03 UTC
> >    Image Type:   PowerPC Linux Kernel Image (gzip compressed)
> >    Data Size:    685809 Bytes = 669.7 kB
> >    Load Address: 00000000
> >    Entry Point:  00000000
> >    Verifying Checksum ... OK
> >    Uncompressing Kernel Image ... OK
> > then the kernel is dead, I do not know what is problem,please give me some clew,thanks!   
> 
> Do you pass the console parameter at booting? It磗 a typical problem, your kernel boots but it doesn磘 know where the console is...
> 
> Regards,
> Pedro.
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