On Fri, 30 Jan 2009, Benjamin Herrenschmidt wrote:
Yeah. In fact, I think you have that bug in almost every board. You only
updated Bamboo and Canyonlands with the initial patch and the changelog
says other boards can be updated separately. Nobody did that. So not
so weird after all.
| PCI host bridge /plb/p...@1ec00 (primary) ranges:
| MEM 0x00018000..0x0001bfff - 0x8000
| IO 0x0001e800..0x0001e800 - 0x
| IO 0x0001e880..0x0001ebff - 0x
| \-- Skipped (too many) !
| 4xx
For that sort of 4xx PHB (ie, the PCI 2.x ones, not the PCI-X nor the
PCI-E), we only know how to program 32-bit of PLB address. IE. The old
code would have cropped the plb_addr when writing to the register, the
new code complains.
I suspect some implementation support a register to put
Herrenschmidt
Sent: Friday, January 30, 2009 1:30 PM
To: Geert Uytterhoeven
Cc: Linux/PPC Development
Subject: Re: Broken PCI on Sequoia
For that sort of 4xx PHB (ie, the PCI 2.x ones, not the PCI-X nor the
PCI-E), we only know how to program 32-bit of PLB address. IE. The old
code would have cropped
:30 PM
To: Geert Uytterhoeven
Cc: Linux/PPC Development
Subject: Re: Broken PCI on Sequoia
For that sort of 4xx PHB (ie, the PCI 2.x ones, not the PCI-X nor the
PCI-E), we only know how to program 32-bit of PLB address. IE. The old
code would have cropped the plb_addr when writing
Hi Ben, Josh,
I did some background bisecting to find out when PCI stopped working on the
AMCC EV-440EPX `Sequoia' Reference Board.
With ppc44x_defconfig + CONFIG_USB=y + CONFIG_USB_EHCI_HCD=y and a USB 2.0 PCI
card in one of the PCI slots, I get:
| ehci_hcd: USB 2.0 'Enhanced' Host
On Thu, 2009-01-29 at 18:37 +0100, Geert Uytterhoeven wrote:
Hi Ben, Josh,
.../...
Git-reverting this commit on top of 2.6.29-rc3 makes the crash go away.
Perhaps sequoia.dts (and other 44x DTS files) had to be changed, too?
Weird, maybe I have a bug when there is no ISA hole in
On Fri, Jan 30, 2009 at 09:11:01AM +1100, Benjamin Herrenschmidt wrote:
On Thu, 2009-01-29 at 18:37 +0100, Geert Uytterhoeven wrote:
Hi Ben, Josh,
.../...
Git-reverting this commit on top of 2.6.29-rc3 makes the crash go away.
Perhaps sequoia.dts (and other 44x DTS files) had to be
Yeah. In fact, I think you have that bug in almost every board. You only
updated Bamboo and Canyonlands with the initial patch and the changelog
says other boards can be updated separately. Nobody did that. So not
so weird after all.
I still don't see off hand what's wrong in the code..
