# GE IMP3a

- List: linuxppc-dev
- 4 messages, 2 authors
- Page: https://ratatoskr.run/linuxppc-dev/2012/08/9470827/t

## GE IMP3a

- From: Kumar Gala \<hidden\>
- Date: 2012-08-15 21:32:53 
- Message: https://ratatoskr.run/linuxppc-dev/2012/08/9470827.md

```text
Martyn,

Do you know why ge_imp3a.c has 0x9000 as the 'primary' PCIe bus on the board?

- k
```

## Re: GE IMP3a

- From: Martyn Welch \<hidden\>
- Date: 2012-08-21 12:44:18 
- Message: https://ratatoskr.run/linuxppc-dev/2012/08/9470871.md

```text
On 15/08/12 22:32, Kumar Gala wrote:
> Do you know why ge_imp3a.c has 0x9000 as the 'primary' PCIe bus on the board?
> 

Hi Kumar,

Sorry, missed your mail.

At a quick guess it's because that's the interface that is used for the
on-board PCI devices.

Martyn


-- 
Martyn Welch (Lead Software Engineer)  | Registered in England and Wales
GE Intelligent Platforms               | (3828642) at 100 Barbirolli Square
T +44(0)1327322748                     | Manchester, M2 3AB
E martyn.welch@ge.com                  | VAT:GB 927559189
```

## Re: GE IMP3a

- From: Kumar Gala \<hidden\>
- Date: 2012-08-21 13:58:56 
- Message: https://ratatoskr.run/linuxppc-dev/2012/08/9470872.md

```text

On Aug 21, 2012, at 7:39 AM, Martyn Welch wrote:

> On 15/08/12 22:32, Kumar Gala wrote:
>> Do you know why ge_imp3a.c has 0x9000 as the 'primary' PCIe bus on =
the board?
>>=20
>=20
> Hi Kumar,
>=20
> Sorry, missed your mail.

np.

> At a quick guess it's because that's the interface that is used for =
the
> on-board PCI devices.

What PCI devices are on-board?

Does the board have any PCIe-ISA bridges?

[ if you can generate an lspci dump, that might answer some of these =
questions ]

thanks

- k=
```

## Re: GE IMP3a

- From: Martyn Welch \<hidden\>
- Date: 2012-08-22 09:53:39 
- Message: https://ratatoskr.run/linuxppc-dev/2012/08/9470885.md

```text
On 21/08/12 14:58, Kumar Gala wrote:
> 
> On Aug 21, 2012, at 7:39 AM, Martyn Welch wrote:
> 
>> On 15/08/12 22:32, Kumar Gala wrote:
>>> Do you know why ge_imp3a.c has 0x9000 as the 'primary' PCIe bus on the board?
>>>
>>
>> Hi Kumar,
>>
>> Sorry, missed your mail.
> 
> np.
> 
>> At a quick guess it's because that's the interface that is used for the
>> on-board PCI devices.
> 
> What PCI devices are on-board?
> 

Just SATA.

> Does the board have any PCIe-ISA bridges?
> 

No, though SERDES Port 1 is connected to a PCie-PCI non-transparent bridge to
a PCI backplane.

> [ if you can generate an lspci dump, that might answer some of these questions ]
> 

Sorry, I don't have easy access to a board at the moment.

Martyn

-- 
Martyn Welch (Lead Software Engineer)  | Registered in England and Wales
GE Intelligent Platforms               | (3828642) at 100 Barbirolli Square
T +44(0)1327322748                     | Manchester, M2 3AB
E martyn.welch@ge.com                  | VAT:GB 927559189
```