[coreboot-gerrit] Change in coreboot[master]: libpayload: xhci: Fix CAPREG address calculation

[Julius Werner (Code Review)]

Hello Duncan Laurie,

I'd like you to do a code review. Please visit

https://review.coreboot.org/c/coreboot/+/40956

to review the following change.

Change subject: libpayload: xhci: Fix CAPREG address calculation
......................................................................

libpayload: xhci: Fix CAPREG address calculation

I rushed CB:40895 in to fix a bug only to introduce another. xhci_init()
no longer crashes, but it doesn't correctly initialize the XHCI
controller either, and unfortunately the error messages are all hidden
behind USB_DEBUG. This patch fixes the incorrect address calculation to
what it was  before CB:39838.

Signed-off-by: Julius Werner 
Change-Id: I14293e2135108db30ba6fd2efea0573fe266fa37
---
M payloads/libpayload/drivers/usb/xhci.c
1 file changed, 1 insertion(+), 1 deletion(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/56/40956/1

diff --git a/payloads/libpayload/drivers/usb/xhci.c b/payloads/libpayload/drivers/usb/xhci.c
index ef1d73f..9d721d9 100644
--- a/payloads/libpayload/drivers/usb/xhci.c
+++ b/payloads/libpayload/drivers/usb/xhci.c
@@ -185,7 +185,7 @@
    	goto _free_xhci;
    }

-	xhci->capreg = phys_to_virt(physical_bar) + sizeof(xhci->capreg);
+	xhci->capreg = phys_to_virt(physical_bar);
    xhci->opreg = phys_to_virt(physical_bar) + CAP_GET(CAPLEN, xhci->capreg);
    xhci->hcrreg = phys_to_virt(physical_bar) + xhci->capreg->rtsoff;
    xhci->dbreg = phys_to_virt(physical_bar) + xhci->capreg->dboff;