[coreboot] pci_check_sanity is confusing; do we need VSA to read LX CS5536 config registers? ; how to handle VSA?

pci_sanity_check is confusing. It looks like this: static int pci_sanity_check(const struct pci_bus_operations *o) { u16 class, vendor; unsigned bus; int devfn; struct bus pbus; /* Dummy device */ #define PCI_CLASS_BRIDGE_HOST 0x0600 #define

Re: [coreboot] pci_check_sanity is confusing; do we need VSA to read LX CS5536 config registers? ; how to handle VSA?

ron minnich wrote: I thought that even without VSA, a pci config read of 0:1.0 would give me something reasonable back. But the devices that are found without VSA are 0:c.0, 0:d.0, and then 0:f.0 etc. Without VSA, the only thing you are going to see south of LX are the real hardware PCI

Re: [coreboot] pci_check_sanity is confusing; do we need VSA to read LX CS5536 config registers? ; how to handle VSA?

On Sat, Jan 19, 2008 at 09:09:03AM -0500, Tom Sylla wrote: Of course, you can access MSRs on those devices before VSA is loaded. It would be really awesome to support the bus natively. //Peter -- coreboot mailing list coreboot@coreboot.org http://www.coreboot.org/mailman/listinfo/coreboot

Re: [coreboot] pci_check_sanity is confusing; do we need VSA to read LX CS5536 config registers? ; how to handle VSA?

On 19.01.2008 09:15, ron minnich wrote: I am wondering for VSA if we should not have a post-ram step where we find all LAR entries with names like prestage2/* and run them. Still not sure of the right approach for VSA. Is VSA so special that we shouldn't worry about handling it in the

Re: [coreboot] pci_check_sanity is confusing; do we need VSA to read LX CS5536 config registers? ; how to handle VSA?

On Jan 19, 2008 7:58 AM, Peter Stuge [EMAIL PROTECTED] wrote: It would be really awesome to support the bus natively. I get this request a lot -- just heard the same comment a few days ago. We could create a method to do this natively, but would need to create pci bios tables for linux, or

Re: [coreboot] pci_check_sanity is confusing; do we need VSA to read LX CS5536 config registers? ; how to handle VSA?

ron minnich wrote: pci_sanity_check is confusing. It looks like this: static int pci_sanity_check(const struct pci_bus_operations *o) { u16 class, vendor; unsigned bus; int devfn; struct bus pbus; /* Dummy device */ #define PCI_CLASS_BRIDGE_HOST 0x0600