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authorPatrick Rudolph <patrick.rudolph@9elements.com>2024-01-18 07:57:07 +0100
committerLean Sheng Tan <sheng.tan@9elements.com>2024-01-31 17:04:33 +0000
commit15672599e411bb39b9f63b8fc2fb8233f3c62ece (patch)
treea2f03ad3d9e28c8898d5a97719acde40dd61e15f /README.md
parent789adfabb722cec627d29c6320c996de44169f86 (diff)
soc/intel/xeon_sp: Attach UBOX stacks
Attach UBOX stacks on newer generation Xeon-SP. In order to use PCI drivers for UBOX devices, locating UBOX devices by vendor and device IDs and replacing device access by specifying S:B:D:F numbers, add a PCI domain for the UBOX stacks and let the PCI enumerator index all devices. Since there are no PCI BARs on the UBOX bus the PCI locator doesn't have to assign resources on those buses. Once all PCI devices on the UBOX stack can be located without knowing their UBOX bus number and PCI segment the Xeon-SP code can fully enable the multi PCI segment group support. Test: ibm/sbp1 (4S) is able to find all PCU devices by PCI ID. Change-Id: I8f9d52dd117364a42de1c73d39cc86dafeaf2678 Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/80091 Reviewed-by: Arthur Heymans <arthur@aheymans.xyz> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Lean Sheng Tan <sheng.tan@9elements.com>
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