From: Jon Fridriksson <jonff@control.auc.dk>
To: linuxppc-embedded@lists.linuxppc.org
Subject: Re: Cannot boot properly
Date: Fri, 05 Apr 2002 19:01:36 +0200 [thread overview]
Message-ID: <3CADD870.4050200@control.auc.dk> (raw)
In-Reply-To: 20020405144452.6FF7E11250@denx.denx.de
Wolfgang Denk wrote:
>Dear Jon,
>
>in message <3CADA82E.9000502@control.auc.dk> you wrote:
>
>>I connect my target to my PC through an ethernet and a serial port and
>>mount a NFS root file system. Here is where the probem arises with the
>>newer kernel. When i boot (with bootm command in ppcboot), the output on
>>my screen is all garbled where everything was ok before. The kernel is
>>still active on the target but does not respond throgh the serial port
>>anymore. (I use minicom to connect and boot parameters are set to 9600
>>baud in ppcboot). Any ideas?? Does the newer kernel overide the baud
>>
>
>Check the output carefully, and compare against a working system. I
>bet, that most of the time every second character is missing, right?
>
Right!
>If this i the case, you have mis-configured the serial ports. Make
>sure to enable both SMC1 and SMC2 in the kernel configuration, and
>select the right one as console port. Also make sure that you select
>CONFIG_ALTSMC2.
>
Done that and now it works !!
Thank you for your quick response
Regards
Jon F. Hjartar
>
>
>If you check with your ".config" file, the following options should
>be selected:
>
> CONFIG_SMC1_UART=y
> # CONFIG_CONS_SMC1 is not set
> CONFIG_UART_MAXIDL_SMC1=1
> CONFIG_SMC1_UART_RX_BDNUM=4
> CONFIG_SMC1_UART_RX_BDSIZE=32
> CONFIG_SMC1_UART_TX_BDNUM=4
> CONFIG_SMC1_UART_TX_BDSIZE=32
> CONFIG_SMC2_UART=y
> CONFIG_ALTSMC2=y
> CONFIG_CONS_SMC2=y
> CONFIG_UART_MAXIDL_SMC2=1
> CONFIG_SMC2_UART_RX_BDNUM=4
> CONFIG_SMC2_UART_RX_BDSIZE=32
> CONFIG_SMC2_UART_TX_BDNUM=4
> CONFIG_SMC2_UART_TX_BDSIZE=32
>
>[This system uses SMC2 as console port - the settings for
>CONFIG_CONS_SMC1 and CONFIG_CONS_SMC2 may be different on your box]
>
>>settings somehow? Is it necessary to upgrade to ppcboot-1.1.5 for the
>>newer kernel to boot??
>>
>
>This is not necessary (though recommended anyway).
>
>Wolfgang Denk
>
--
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-04-05 17:01 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-05 13:35 Cannot boot properly Jon Fridriksson
2002-04-05 14:44 ` Wolfgang Denk
2002-04-05 17:01 ` Jon Fridriksson [this message]
2002-04-05 18:54 ` Wolfgang Denk
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=3CADD870.4050200@control.auc.dk \
--to=jonff@control.auc.dk \
--cc=linuxppc-embedded@lists.linuxppc.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.