From: Kiran Mandava <kiran.mandava@skystream.com>
To: "'Allen Curtis'" <acurtis@onz.com>,
Kiran Mandava <kiran.mandava@skystream.com>
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: RE: ep8260 board linux port
Date: Fri, 19 Dec 2003 15:10:48 -0800 [thread overview]
Message-ID: <DBF73ACB70D3D711A358000BDBACF5CE09D23E@SSMAIL1> (raw)
Allen,
>> I am trying to port linux 2.4.22 onto ep8260 board. (256 MB RAM on
>> 6xx
>> bus/ 32 MB Flash) using tools and source code from denx webisite.
>> I was able to port u-boot and trying to boot linux now.
>> i couldn't find any specific files to this board in the platform
>> directory
>> although est8260.h file has the basic bd structure. the problem i am
>> facing
>> is the processor loops in serial_console_write/ timer interrupt
>> handler. i
>> made sure that i am passing the baudrate proeprly by looking
>at the bd
>> structure while passing teh control to start_kernel function.
>>
>
>How are you creating your boot image. If you are following the u-boot
>directions then you don't need any board specific support in the
>kernel. If you are trying to boot zImage, then you have more work to
>do.
Do you mean zImage.embedded? I have been using make_image utility from
uboot and using image arch/ppc/boot/images/vmlinux.gz to create image that
uboot downloads via tftp.
>
>> My console does display everything properly running u-boot
>but once
>> the
>> control goes to linux don't see anything on the console.
>>
>
>Did you happen to customize the BAUD rate information for u-boot or
>Linux? The u-boot default is 115K, Linux default is 9600.
>
>Another thing that I have run into is the clock divider configuration
>by u-boot. Try changing your minicom baud rate up or down by
>4X and see
>if you see anything then.
I tried changing the baud rates didn't make any difference. If I attach
the BDI it is looping in serial_console_write. I did verify that clock
rate is getting passed from uboot to kernel correctly. In uboot I am
not setting the variable clock_in_mhz.
Doea anybody have .config file for EP8260 that I can use?
-Kiran
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next reply other threads:[~2003-12-19 23:10 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-12-19 23:10 Kiran Mandava [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-12-19 16:46 ep8260 board linux port Matt Hoover
2003-12-18 19:44 Kiran Mandava
2003-12-19 16:05 ` Allen Curtis
2003-12-19 17:47 ` Dan Malek
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