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I'd like you to reexamine a change. Please visit
https://review.coreboot.org/c/coreboot/+/39838
to look at the new patch set (#2).
Change subject: lp/drivers/usb: Work around QEMU XHCI register issue ......................................................................
lp/drivers/usb: Work around QEMU XHCI register issue
The QEMU XHCI controller does not support byte/word reads from the capability register and it expects dword reads only.
In order to make this work move the access of the capability register fields to use macros instead of a packed struct bitfield.
This issue was filed upstream: https://bugs.launchpad.net/qemu/+bug/1693050
The original fix attempt in 2012 was not effective: https://github.com/qemu/qemu/commit/6ee021d41078844df60a3a466e3829a3e82776f3
With this change the controller is detected properly by the libpayload USB drivers.
Change-Id: I048ed14921a4c9c0620c10b315b42476b6e5c512 Signed-off-by: Duncan Laurie dlaurie@google.com --- M payloads/libpayload/drivers/usb/xhci.c M payloads/libpayload/drivers/usb/xhci_private.h M payloads/libpayload/drivers/usb/xhci_rh.c 3 files changed, 77 insertions(+), 80 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/38/39838/2