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libpayload/drivers/usb/xhci: Allow xHCI v1.2 in libpayload 

The latest Intel FSP advertises xHCI v1.2 chipset support, so update
libpayload to include that version. No critical changes were identified
in review of the xHCI v1.2 spec, and booting from USB works with the
included change as expected.

BUG=b:155315876
TEST=booting from multiple USB sticks/hubs with the latest Intel FSP
that advertises xHCI v1.2

Change-Id: I236fed9beef86ff5e1bf7962d882fdae5817a1ff
Signed-off-by: Dossym Nurmukhanov <dossym@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/41039
Reviewed-by: Wonkyu Kim <wonkyu.kim@intel.com>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Dossym Nurmukhanov 2020-05-04 12:45:06 -07:00 committed by Stefan Reinauer
parent df134c1873
commit 4eadcb0537
1 changed files with 1 additions and 1 deletions
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2
payloads/libpayload/drivers/usb/xhci.c
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@ -198,7 +198,7 @@ xhci_init (unsigned long physical_bar)
xhci_debug("hciversion: %"PRIx8".%"PRIx8"\n", xhci_debug("hciversion: %"PRIx8".%"PRIx8"\n",
CAP_GET(CAPVER_HI, xhci->capreg), CAP_GET(CAPVER_LO, xhci->capreg)); CAP_GET(CAPVER_HI, xhci->capreg), CAP_GET(CAPVER_LO, xhci->capreg));
if ((CAP_GET(CAPVER, xhci->capreg) < 0x96) || if ((CAP_GET(CAPVER, xhci->capreg) < 0x96) ||
(CAP_GET(CAPVER, xhci->capreg) > 0x110)) { (CAP_GET(CAPVER, xhci->capreg) > 0x120)) {
xhci_debug("Unsupported xHCI version\n"); xhci_debug("Unsupported xHCI version\n");
goto _free_xhci; goto _free_xhci;
} }