From: Felix Radensky <felix@embedded-sol.com>
To: Stef van Os <stef.van.os@Prodrive.nl>
Cc: Stefan Roese <sr@denx.de>, Feng Kan <fkan@amcc.com>,
linuxppc-dev@ozlabs.org
Subject: Re: PCI-PCI bridge scanning broken on 460EX
Date: Mon, 11 Jan 2010 13:48:55 +0200 [thread overview]
Message-ID: <4B4B1027.4020708@embedded-sol.com> (raw)
In-Reply-To: <4CD35CD1F8085945B597F80EEC89421303B8AD0C@exc01.bk.prodrive.nl>
Hi Stef,
Stef van Os wrote:
> Hello Felix,
>
> I had a problem similar to this on the 440GX, the PCI code was not
> sending type 1 transactions when scanning behind bridges. Perhaps you
> could try this:
>
> Index: linux/arch/powerpc/sysdev/ppc4xx_pci.c
> ===================================================================
> --- linux/arch/powerpc/sysdev/ppc4xx_pci.c (revision 26)
> +++ linux/arch/powerpc/sysdev/ppc4xx_pci.c (revision 27)
> @@ -569,7 +569,7 @@
> hose->last_busno = bus_range ? bus_range[1] : 0xff;
>
> /* Setup config space */
> - setup_indirect_pci(hose, rsrc_cfg.start, rsrc_cfg.start + 0x4,
> 0);
> + setup_indirect_pci(hose, rsrc_cfg.start, rsrc_cfg.start + 0x4,
> PPC_INDIRECT_TYPE_SET_CFG_TYPE);
>
> /* Disable all windows */
> writel(0, reg + PCIX0_POM0SA);
>
>
>
> With kind regards / Met vriendelijke groet,
>
> Stef van Os
>
> Prodrive B.V.
>
>
>
I think you patch is a valid one, and should be applied, but
unfortunately it doesn't fix by problem.
BTW, in u-boot transaction type bit is set correctly.
Felix.
next prev parent reply other threads:[~2010-01-11 11:49 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-12-28 10:51 PCI-PCI bridge scanning broken on 460EX Felix Radensky
2010-01-04 5:55 ` Benjamin Herrenschmidt
2010-01-04 8:59 ` Felix Radensky
2010-01-10 12:56 ` Felix Radensky
2010-01-10 20:38 ` Benjamin Herrenschmidt
2010-01-10 21:13 ` Felix Radensky
2010-01-10 21:31 ` Benjamin Herrenschmidt
2010-01-11 9:58 ` Stef van Os
2010-01-11 11:48 ` Felix Radensky [this message]
2010-01-11 16:46 ` Felix Radensky
2010-01-11 20:53 ` Benjamin Herrenschmidt
2010-01-11 22:48 ` Felix Radensky
2010-01-11 22:53 ` Benjamin Herrenschmidt
2010-01-12 11:02 ` Felix Radensky
2010-01-12 11:14 ` Stef van Os
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