From: Matt Porter <porter@cox.net>
To: Khai Trinh <kqtrinh@yahoo.com>
Cc: linuxppc-embedded@lists.linuxppc.org
Subject: Re: Ebony bootloader
Date: Tue, 11 Jun 2002 19:51:30 -0700 [thread overview]
Message-ID: <20020611195130.C28767@home.com> (raw)
In-Reply-To: <20020611234337.46834.qmail@web11503.mail.yahoo.com>; from kqtrinh@yahoo.com on Tue, Jun 11, 2002 at 04:43:37PM -0700
On Tue, Jun 11, 2002 at 04:43:37PM -0700, Khai Trinh wrote:
>
> Does the Ebony board port implement a bootloader? What
It uses the "simple" bootloader.
> does the head_440.S file do in a nutshell?
init MMU and jump to start_kernel.
> If our custom board has peripheral devices hanging off
> the EBC0, how should I initilize them and where in the
> ebony port code? I browsed the source a little bit and
> see the ebony.c source. I believe this is where you
> add peripheral devices to the kernel. Am I right?
You can add then wherever you want, but ideally you would
create a <custom_board>.c with board specific I/O code.
> What is that ioremap64() anyway? Is this a kernel call
> or a called supported by the firmware?
Read Understanding Linux, Linux Device Drivers, and the
documentation in Documentation/ directory. ioremap64()
is a version of ioremap() for >32-bit physical address
systems (440, 745x).
Regards,
--
Matt Porter
porter@cox.net
This is Linux Country. On a quiet night, you can hear Windows reboot.
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
next prev parent reply other threads:[~2002-06-12 2:51 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-06-11 23:43 Ebony bootloader Khai Trinh
2002-06-12 2:51 ` Matt Porter [this message]
2002-06-12 5:10 ` Paul Mackerras
2002-06-12 10:51 ` Matt Porter
2002-06-12 11:33 ` Khai Trinh
2002-06-15 15:10 ` Matt Porter
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