All of lore.kernel.org
 help / color / mirror / Atom feed
From: Daniel Walker <danielwa@cisco.com>
To: Jia Hongtao <B38951@freescale.com>
Cc: Scott Wood <scottwood@freescale.com>,
	Kumar Gala <galak@kernel.crashing.org>,
	Benjamin Herrenschmidt <benh@kernel.crashing.org>,
	Paul Mackerras <paulus@samba.org>,
	Michael Ellerman <mpe@ellerman.id.au>,
	linuxppc-dev@lists.ozlabs.org,
	"David Beazley (dbeazley)" <dbeazley@cisco.com>,
	"xe-kernel@external.cisco.com" <xe-kernel@external.cisco.com>
Subject: Re: powerpc/fsl-pci: Unify pci/pcie initialization code
Date: Thu, 5 Nov 2015 10:48:12 -0800	[thread overview]
Message-ID: <563BA46C.8000202@cisco.com> (raw)

Hi,

905e75c46dba5f3061049277e4eb7110beedba43:arch/powerpc/platforms/85xx/mpc85xx_ads.c

This commit seems to cause problems with PCI devices doing DMA, just 
with mpc85xx ads. If you do the "fsl_add_bridge()" after you setup the 
ppc_md.pci_exclude_device to mpc85xx_exclude_device, then the 
early_read_config_word() calls in 
arch/powerpc/sysdev/fsl_pci.c:setup_pci_cmd() are like no-ops.

This issue was found by David Beazley (on the CC), he can respond to 
more detailed questions on it. The fix he came up with was to remove the 
"pci_exclude_device".

Daniel

             reply	other threads:[~2015-11-05 18:58 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-05 18:48 Daniel Walker [this message]
2015-11-05 23:12 ` powerpc/fsl-pci: Unify pci/pcie initialization code Scott Wood
2015-11-05 23:16   ` Daniel Walker
2015-11-05 23:40     ` Scott Wood

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=563BA46C.8000202@cisco.com \
    --to=danielwa@cisco.com \
    --cc=B38951@freescale.com \
    --cc=benh@kernel.crashing.org \
    --cc=dbeazley@cisco.com \
    --cc=galak@kernel.crashing.org \
    --cc=linuxppc-dev@lists.ozlabs.org \
    --cc=mpe@ellerman.id.au \
    --cc=paulus@samba.org \
    --cc=scottwood@freescale.com \
    --cc=xe-kernel@external.cisco.com \
    /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.