From: Kumar Gala <kumar.gala@freescale.com>
To: Laurent Lagrange <lagrange@fr.oleane.com>
Cc: "<linuxppc-embedded@ozlabs.org>" <linuxppc-embedded@ozlabs.org>
Subject: Re: MPC8560 problem to launch user application like /sbin/init
Date: Wed, 13 Oct 2004 22:13:21 -0500 [thread overview]
Message-ID: <010190ED-1D8F-11D9-92E7-000393DBC2E8@freescale.com> (raw)
In-Reply-To: <13F5C6B8-1D5B-11D9-88FA-003065F9B7DC@embeddededge.com>
Have you turned on emulation of FP in the kernel?
- kumar
On Oct 13, 2004, at 4:01 PM, Dan Malek wrote:
>
>
> On Oct 13, 2004, at 1:07 PM, Laurent Lagrange wrote:
>
> > The console is mapped on SCC1 port.
> > CCSRBAR is mapped at 0xF8000000 and immr at 0xF8080000.
>
> I would suggest using the standard memory map the rest of
> us use for 8560.=A0 It makes the porting lots easier.
>
> > I open 2 TLBs on memory and a big TLB for all IOs included CSSRBAR.
> > Due to IO TLB, I don't io_remap cpm2_immr.
>
> How do you to this?=A0 The linux ppc kernel already manages all
> of this mapping for you.
>
> > All things run fine until I launch the /sbin/init file from a nfs
> > networK.
>
> Seems like a memory mapping problem.=A0 If you are using an 8260
> file system, have you also enabled the math emulation in the kernel?
>
> > I don't know if uboot sets other things than TLBs to access IOs
> > and if my own boot is incomplete.
> > I don't know if cpm must be io_remapped instead of using TLBs.
>
> The u-boot will configure all of the LAWs, and like your boot rom
> will also configure some of the TLBs for main memory mapping.
> The Linux kernel will change all of the TLBs using the boot rom
> TLB maps as a hint.
>
> > Any ideas would be welcome.
>
> Download linuxppc-2.4 from BitKeeper, use one of the existing
> 85xx ports as a guide for your board.=A0 Keep things consistent
> with the other board ports.=A0 Take a look at one of the board
> ports for u-boot to see how it configures the LAWs and TLBs.
>
>
>
> =A0=A0=A0=A0=A0=A0=A0 -- Dan
>
> _______________________________________________
> Linuxppc-embedded mailing list
> Linuxppc-embedded@ozlabs.org
> https://ozlabs.org/mailman/listinfo/linuxppc-embedded
next prev parent reply other threads:[~2004-10-14 3:14 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-10-13 17:07 MPC8560 problem to launch user application like /sbin/init Laurent Lagrange
2004-10-13 21:01 ` Dan Malek
2004-10-14 3:13 ` Kumar Gala [this message]
2004-10-14 9:49 ` Laurent Lagrange
2004-10-14 15:39 ` Jon Loeliger
2004-10-14 15:28 ` Jon Loeliger
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=010190ED-1D8F-11D9-92E7-000393DBC2E8@freescale.com \
--to=kumar.gala@freescale.com \
--cc=lagrange@fr.oleane.com \
--cc=linuxppc-embedded@ozlabs.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.