From: Andrew Wozniak <awozniak@mc.com>
To: u-boot@lists.denx.de
Subject: [U-Boot-Users] How to pause u-boot after serial init
Date: Thu, 06 Jan 2005 13:25:13 -0500 [thread overview]
Message-ID: <41DD8289.6020202@mc.com> (raw)
In-Reply-To: <1105027245.41d677cnishant.subs@myrealbox.com>
If your hang function is an infinite loop, then any code after it will
NOT get a chance to execute and you will not see any console output.
U-Boot is single threaded, non-multitasking.
Nishant Galange wrote:
> Dear all,
>
> I have a query regarding my custom board (8266 based PMC card, 512K boot flash, Himem (top boot), 32 MB main flash, 128 MB SDRAM, u-boot 1.1.1).
>
> When trying to bring up the serial port, I want to stop execution after serial initialization. So, I inserted an infinite loop ('hang') in init_sequence[] in lib_ppc/board.c.
>
> The problem is that a 'hang' placed just after console_init_f works but I can't see any display on Hype Terrminal, because no prints have happened yet.
>
> And a 'hang' placed after 'display options' dosen't even load! The data lines (seen on a Logic Analyzer) show all 0s
>
> Can anybody please shed some light on this problem? Any help / hints will be greatly appreciated.
>
> Regards,
> Nishant.
>
>
>
>
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prev parent reply other threads:[~2005-01-06 18:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-01-06 16:00 [U-Boot-Users] How to pause u-boot after serial init Nishant Galange
2005-01-06 17:15 ` Wolfgang Denk
2005-01-06 18:25 ` Andrew Wozniak [this message]
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