[U-Boot] kirkwood openRD-base / PCI support

[Dieter Kiermaier <dk-arm-linux@gmx.de>]

Am Freitag 24 Juli 2009 05:59:41 schrieb Prafulla Wadaskar:
> 
> > -----Original Message-----
> > From: Dieter Kiermaier [mailto:dk-arm-linux at gmx.de] 
> > Sent: Thursday, July 23, 2009 6:25 PM
> > To: u-boot at lists.denx.de
> > Cc: Prafulla Wadaskar; Simon Kagstrom
> > Subject: kirkwood openRD-base / PCI support
> > 
> > Hi Prafulla, hi list,
> > 
> > is there anywhere pci support available for u-boot on 
> > openrd-base board?
> > I've googled and searched the list archive but aren't 
> > sucessful :-( It looks like there is no PCI support until 
> > now, Are there any plans to do this from marvell side?
> > 
> > I use Simons patches for initial openrd-base support and try 
> > to get up kirkwoods PCI port.
> > u-boot without PCI is running fine on my openrd-base board.
> 
> Dear Dieter
> PCIe port on Kirkwood SOC can be enabled in the u-boot by defining CONFIG_KIRKWOOD_PCIE_INIT in board configuration header file.
> This enables PCIe interface to work from kernel,
> I have tested it for MV88F6281GTW_GE board.
> 
> Apart from this there is no PCIe support yet enabled in u-boot for kirkwood at this moment
> 
Mmh, so I fear I have to wait a while. I've enabled CONFIG_KIRKWOOD_PCIE_INIT allready. And also written an empty
#ifdef CONFIG_KIRKWOOD_PCIE_INIT
void pci_init_board()
{
	printf("kirkwood: pci_init_board() called\n");
}
#endif /* CONFIG_KIRKWOOD_PCIE_IN */
#endif
in cpu.c
The function is called on bootup - nice.
But if I try pci 0 on the u-boot prompt it gives me
Marvell>> pci
Scanning PCI devices on bus 0
BusDevFun  VendorId   DeviceId   Device Class       Sub-Class
_____________________________________________________________
pci_bus_to_hose() failed
pci_bus_to_hose() failed
pci_bus_to_hose() failed
pci_bus_to_hose() failed
pci_bus_to_hose() failed
pci_bus_to_hose() failed
...
What is not really suprisingly.
but then I was a bit confused what else is needed ;-)

It looks like I have to learn about some basic PCI frameworks inside u-boot first.

Also there are a few other tasks on my desk which have to be done first so I stopped working on it for the moment.
But nevertheless, if there are any news regarding PCIe it would be nice if you could keep me up to date!

Dieter

> Regards..
> Prafulla . .
> 
> > 
> > Many thanks,
> > Dieter
> > 
> > 
> > 
> >