linuxppc-dev.lists.ozlabs.org archive mirror
 help / color / mirror / Atom feed
From: "Johns Daniel" <johns.daniel@gmail.com>
To: linuxppc-embedded@ozlabs.org
Subject: Re: CONFIG_PCI interaction with pata_platform driver on MPC834x board
Date: Wed, 23 Jan 2008 09:06:17 -0600	[thread overview]
Message-ID: <ba5d9360801230706n47ad71bapd1820488f823736f@mail.gmail.com> (raw)
In-Reply-To: <ba5d9360712210737h133fd831vbfb7c9f996c6df7c@mail.gmail.com>

I am asking this question once more since my previous try -- right
before the Christmas break -- did not elicit any responses!   ;~)

Without PCI support configured in the kernel, the CompactFlash card is
discovered and configured by the kernel. With PCI support configured
in the kernel, it fails to discover the CF card through the
pata_platform driver.

(Note that both PCI and CF work fine on this same board with the
generic IDE driver!)

There are only two differences that I notice between the two kernel
setups that might be significant:
1.) The libata virq changes from 19 to 20.
2.) The isa_io_base changes from 0x0 to 0xfcfff000.
Are either of these two changes significant?

I am using the "arch/powerpc" kernel, version 2.6.20.21. The CF is
wired directly to the local bus in True IDE mode.

I have some debug info included in my previous message at:

http://www.nabble.com/CONFIG_PCI-interaction-with-pata_platform-driver-on-MPC834x-board-tc14457502.html

TIA!

-- Johns

  reply	other threads:[~2008-01-23 15:06 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-12-21 15:37 CONFIG_PCI interaction with pata_platform driver on MPC834x board Johns Daniel
2008-01-23 15:06 ` Johns Daniel [this message]
2008-01-23 16:38   ` Kumar Gala

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=ba5d9360801230706n47ad71bapd1820488f823736f@mail.gmail.com \
    --to=johns.daniel@gmail.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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).