From 403f4332382f36f3b63e9ed8715b4f5604627c97 Mon Sep 17 00:00:00 2001 From: Patrick Rudolph Date: Sun, 14 Jul 2019 17:43:52 +0200 Subject: sb/intel/bd82x6x: Add support to disable xHCI Set FD bit if xHCI is disabled in devicetree. Change-Id: I3d08ded10daea6d86857ebbbf3f8dcc85ebe9df4 Signed-off-by: Patrick Rudolph Reviewed-on: https://review.coreboot.org/c/coreboot/+/34336 Tested-by: build bot (Jenkins) Reviewed-by: Felix Held --- src/southbridge/intel/bd82x6x/pch.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/src/southbridge/intel/bd82x6x/pch.c b/src/southbridge/intel/bd82x6x/pch.c index f8540af451..e4eccd766d 100644 --- a/src/southbridge/intel/bd82x6x/pch.c +++ b/src/southbridge/intel/bd82x6x/pch.c @@ -148,6 +148,12 @@ void pch_iobp_update(u32 address, u32 andvalue, u32 orvalue) static void pch_hide_devfn(unsigned devfn) { switch (devfn) { + case PCI_DEVFN(20, 0): /* xHCI */ + if (pch_silicon_type() == PCH_TYPE_PPT) { + /* on CPT this bit is reserved */ + RCBA32_OR(FD, PCH_DISABLE_XHCI); + } + break; case PCI_DEVFN(22, 0): /* MEI #1 */ RCBA32_OR(FD2, PCH_DISABLE_MEI1); break; -- cgit v1.2.3