From 37e1d93ca0da15c03be32514e45f3668060aac08 Mon Sep 17 00:00:00 2001 From: Arthur Heymans Date: Wed, 2 Oct 2019 14:33:34 +0200 Subject: sb/intel/ibexpeak: Fix enabling HPET RCBA_HPTC needs to be read back to properly work. This fixes SeaBIOS endlessly waiting for input instead of booting the default entry. Linux already fixes this itself. Change-Id: I22b8b34924f2add2185ec46470c1559bf2fb6d58 Signed-off-by: Arthur Heymans Reviewed-on: https://review.coreboot.org/c/coreboot/+/35757 Reviewed-by: Angel Pons Reviewed-by: Patrick Rudolph Tested-by: build bot (Jenkins) --- src/southbridge/intel/ibexpeak/lpc.c | 1 + 1 file changed, 1 insertion(+) (limited to 'src') diff --git a/src/southbridge/intel/ibexpeak/lpc.c b/src/southbridge/intel/ibexpeak/lpc.c index ec9b045f24..e433530bae 100644 --- a/src/southbridge/intel/ibexpeak/lpc.c +++ b/src/southbridge/intel/ibexpeak/lpc.c @@ -394,6 +394,7 @@ static void enable_hpet(void) 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); } -- cgit v1.2.3