Am Freitag 24 Juli 2009 05:59:41 schrieb Prafulla Wadaskar:
-----Original Message----- From: Dieter Kiermaier [mailto:dk-arm-linux@gmx.de] Sent: Thursday, July 23, 2009 6:25 PM To: u-boot@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