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cpu/intel/haswell: Raise PSI1 threshold to 20A 

Haswell reference code version 1.9.0 uses the same value as Broadwell.

Change-Id: I979ea1b4ba2962bd0c55cfb9d0c291f32cf5fcad
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46919
Reviewed-by: Nico Huber <nico.h@gmx.de>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Angel Pons 2020-10-28 22:41:26 +01:00 committed by Nico Huber
parent 053deb8e06
commit 9dcd1c1173
1 changed files with 1 additions and 1 deletions
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src/cpu/intel/haswell/haswell_init.c
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@ -260,7 +260,7 @@ static void initialize_vr_config(void)
msr.hi &= 0xc0000000;
msr.hi |= (0x01 << (52 - 32)); /* PSI3 threshold - 1A. */
msr.hi |= (0x05 << (42 - 32)); /* PSI2 threshold - 5A. */
msr.hi |= (0x0f << (32 - 32)); /* PSI1 threshold - 15A. */
msr.hi |= (0x14 << (32 - 32)); /* PSI1 threshold - 20A. */
if (haswell_is_ult())
msr.hi |= (1 << (62 - 32)); /* Enable PSI4 */