[coreboot-gerrit] Change in coreboot[master]: sb/intel/ibexpeak: Fix enabling HPTC

[Arthur Heymans (Code Review)]

Arthur Heymans has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/35757 )

Change subject: sb/intel/ibexpeak: Fix enabling HPTC
......................................................................

sb/intel/ibexpeak: Fix enabling HPTC

RCBA_HPTC needs to be read back to properly work.
This fixes SeaBIOS endlessly waiting for input instead of booting the
default entry.

Change-Id: I22b8b34924f2add2185ec46470c1559bf2fb6d58
Signed-off-by: Arthur Heymans 
---
M src/southbridge/intel/ibexpeak/lpc.c
1 file changed, 1 insertion(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/coreboot refs/changes/57/35757/1

diff --git a/src/southbridge/intel/ibexpeak/lpc.c b/src/southbridge/intel/ibexpeak/lpc.c
index 4a25181..8088827 100644
--- a/src/southbridge/intel/ibexpeak/lpc.c
+++ b/src/southbridge/intel/ibexpeak/lpc.c
@@ -393,6 +393,7 @@
    reg32 |= (1 << 7); // HPET Address Enable
    reg32 &= ~(3 << 0);
    RCBA32(HPTC) = reg32;
+	RCBA32(HPTC); /* Read back for it to work */

write32((u32 *)0xfed00010, read32((u32 *)0xfed00010) | 1);
 }