From: Jose Souto <souto@contronics.com>
To: "ecos-discuss@sources.redhat.com" <ecos-discuss@sources.redhat.com>
Subject: Re: [ECOS] Newbie questions
Date: Thu, 18 Jul 2002 05:35:00 -0000 [thread overview]
Message-ID: <3D36B4ED.9EE66531@contronics.com> (raw)
In-Reply-To: <20020718013430.41368.qmail@web13903.mail.yahoo.com>
Hi Madhu,
Your answer is yes.
You need a bios customized to your hardware that does at least CPU
registers configuration (if needed), SDRAM memory controller configuration
(and basic memory test - for sanity), Super I/O and COM1 38400-8N1
programming or any other serial port support and network interface
configuration, if you intend to use RedBoot with network support.
The last thing this bios should do is to enter protected mode and do a "FAR
JMP" to the RedBoot entry point. The sample "romboot" available does
nothing specific to your hardware but is a fair starting point. You don't
have to reinvent a bios but you need to have at least the SDRAM working,
the other things may be done in C at the beginning of RedBoot...
Jose Luiz
Madhu Lakshmanan wrote:
> Does Redboot for an x86 platform assume that chipsets
> like the Northbridge, Southbridge, etc., are
> initialized by a BIOS?
>
> Can I use the current / latest Redboot sources to
> create a Redboot for a generic x86 PC which _does not_
> have a BIOS?
>
> Thanks,
>
> Madhu Lakshmanan
>
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> Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
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--
Before posting, please read the FAQ: http://sources.redhat.com/fom/ecos
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next prev parent reply other threads:[~2002-07-18 12:35 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-07-17 18:34 Madhu Lakshmanan
2002-07-17 19:21 ` [ECOS] cyg_user_start limitations SASAKI@KOBELCO
2002-07-18 6:47 ` Gary Thomas
2002-07-22 22:09 ` SASAKI@KOBELCO
2002-07-18 0:44 ` [ECOS] Newbie questions Iztok Zupet
2002-07-18 5:35 ` Jose Souto [this message]
[not found] <20050920064811.GC8421@lunn.ch>
2005-09-21 5:46 ` [ECOS] newbie questions Andrew Voelkel
2005-09-21 6:48 ` Andrew Lunn
-- strict thread matches above, loose matches on Subject: below --
2005-09-20 11:15 Andrew Lunn
2005-09-20 7:06 Andrew Voelkel
2005-09-20 12:16 ` Gary Thomas
2003-10-07 4:54 Michael Anburaj
2003-10-06 13:07 David Vrabel
2003-10-06 11:31 bier meister
2001-04-04 14:55 [ECOS] Newbie Questions Greg White
2001-04-04 15:49 ` Lewin A.R.W. Edwards
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