Re: [U-Boot] configure ppc440spe as pci adapter

2009-09-14 Thread dbrazeau

Yes, I do mean PCIe.  Sorry should have mentioned that.

wd wrote:
 
 Dear dbrazeau,
 
 In message 25389144.p...@talk.nabble.com you wrote:
 
 I'm trying to get my ppc440spe (Katmai) board to initialize in PCI
 adapter
 mode.  I was hoping that someone could give me some pointers on what
 changes
 
 You are really talking about the PCI-X port on the Katmai board, are
 you? You don't by any chance mean PCIe?
 
 Best regards,
 
 Wolfgang Denk
 
 -- 
 DENX Software Engineering GmbH, MD: Wolfgang Denk  Detlev Zundel
 HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
 Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de
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Re: [U-Boot] configure ppc440spe as pci adapter

2009-09-14 Thread Wolfgang Denk
Dear dbrazeau,


please do not top-post / full quote. Make sure to read
http://www.netmeister.org/news/learn2quote.html


In message 25438442.p...@talk.nabble.com you wrote:
 
 Yes, I do mean PCIe.  Sorry should have mentioned that.

Well, in this case...

  In message 25389144.p...@talk.nabble.com you wrote:
  
  I'm trying to get my ppc440spe (Katmai) board to initialize in PCI
  adapter
  mode.  I was hoping that someone could give me some pointers on what
  changes

...you should also make sure to use right terminology. Adapter mode
is a PCI (and PCI-X) related term, but is not used with PCI-e.

With PCI-e, we are talking about root versus end point mode, and
you do not have to implement any changes for this. You only have to
set the pcie_mode environment variable correctly.

Please see this commit message for a description:


commit d4cb2d17946466740afeb195a57d6cb290bf4cc0
Author: Stefan Roese s...@denx.de
Date:   Sat Oct 13 16:43:23 2007 +0200

ppc4xx: Dynamic configuration of 4xx PCIe mode as root or endpoint mode

This patch adds support for dynamic configuration of PCIe ports for the
AMCC PPC4xx boards equipped with PCIe interfaces. These are the PPC440SPe
boards Yucca  Katmai and the 405EX board Kilauea.

This dynamic configuration is done via the pcie_mode environement
variable. This variable can be set to EP or RP for endpoint or
rootpoint mode. Multiple values can be joined via the : delimiter.
Here an example:

pcie_mode=RP:EP:EP

This way, PCIe port 0 will be configured as rootpoint, PCIe port 1 and 2
as endpoint.

Per default Yucca will be configured as:
pcie_mode=RP:EP:EP

Per default Katmai will be configured as:
pcie_mode=RP:RP:REP

Per default Kilauea will be configured as:
pcie_mode=RP:RP

Signed-off-by: Tirumala R Marri tma...@amcc.com
Signed-off-by: Stefan Roese s...@denx.de



Sorry that this is not documented properly - Stefan, can you please
add at least some description to the README?

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH, MD: Wolfgang Denk  Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de
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Re: [U-Boot] configure ppc440spe as pci adapter

2009-09-11 Thread Stefan Roese
On Thursday 10 September 2009 21:01:57 dbrazeau wrote:
 I'm trying to get my ppc440spe (Katmai) board to initialize in PCI adapter
 mode.  I was hoping that someone could give me some pointers on what
  changes I need in the katmai config file, i.e. do I need to define
 CONFIG_SYS_PCI_MASTER_INIT.  Also I noticed that some ppc4xx have
 PCI_HOST_ADAPTER defined, but this is not defined in the Katmai config
  file. Should I define it and define CONFIG_PCI_HOST to it?  Any comments
  are greatly appreciated.  Thanks.

I don't know of any 440SPe based board used in PCI adapter mode. But you could 
probably check the esd PMC440 board. This is a PPC440EPx based PMC module 
which can be configured/built either as PCI host or as PCI adapter.

Cheers,
Stefan

--
DENX Software Engineering GmbH,  MD: Wolfgang Denk  Detlev Zundel
HRB 165235 Munich,  Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-0 Fax: (+49)-8142-66989-80 Email: off...@denx.de
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Re: [U-Boot] configure ppc440spe as pci adapter

2009-09-11 Thread Wolfgang Denk
Dear dbrazeau,

In message 25389144.p...@talk.nabble.com you wrote:
 
 I'm trying to get my ppc440spe (Katmai) board to initialize in PCI adapter
 mode.  I was hoping that someone could give me some pointers on what changes

You are really talking about the PCI-X port on the Katmai board, are
you? You don't by any chance mean PCIe?

Best regards,

Wolfgang Denk

-- 
DENX Software Engineering GmbH, MD: Wolfgang Denk  Detlev Zundel
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de
Never underestimate the bandwidth of a station wagon full of tapes.
-- Dr. Warren Jackson, Director, UTCS
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[U-Boot] configure ppc440spe as pci adapter

2009-09-10 Thread dbrazeau

I'm trying to get my ppc440spe (Katmai) board to initialize in PCI adapter
mode.  I was hoping that someone could give me some pointers on what changes
I need in the katmai config file, i.e. do I need to define
CONFIG_SYS_PCI_MASTER_INIT.  Also I noticed that some ppc4xx have
PCI_HOST_ADAPTER defined, but this is not defined in the Katmai config file. 
Should I define it and define CONFIG_PCI_HOST to it?  Any comments are
greatly appreciated.  Thanks. 
-- 
View this message in context: 
http://www.nabble.com/configure-ppc440spe-as-pci-adapter-tp25389144p25389144.html
Sent from the Uboot - Users mailing list archive at Nabble.com.

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