From 3d299c4b092d3464ea90ddc338f62b04a61e0c46 Mon Sep 17 00:00:00 2001 From: Duncan Laurie Date: Fri, 19 Jul 2013 08:48:05 -0700 Subject: lynxpoint me: add support for mbp clear wait in finalize step The management engine is slow, requiring at least 500ms between when the Dram Init Done message is sent (right after memory training) to when the MBP will report that it is successfully cleared and that the ME can finally be sent the EOP message. Currently this is adding 100-150ms to the boot time. If we defer waiting for the MBP Clear indicator until the finalize step we can gain back that lost time. boot on falco with SMI debugging enabled to ensure that the ME is locked down in the finalize step: Finalizing Coreboot SMI# #0 SMI_STS: PM1 APM ME: MBP cleared ME: mkhi_end_of_post ME: END OF POST message successful (0) Change-Id: Icab4c8c8e00eea67bed5e8154d91a1eb48a492d1 Signed-off-by: Duncan Laurie Reviewed-on: https://gerrit.chromium.org/gerrit/62633 Reviewed-by: Aaron Durbin Reviewed-on: http://review.coreboot.org/4375 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi --- src/mainboard/intel/wtm2/mainboard_smi.c | 1 - 1 file changed, 1 deletion(-) (limited to 'src/mainboard/intel/wtm2') diff --git a/src/mainboard/intel/wtm2/mainboard_smi.c b/src/mainboard/intel/wtm2/mainboard_smi.c index 3ffc68441d..bcc94d6f2b 100644 --- a/src/mainboard/intel/wtm2/mainboard_smi.c +++ b/src/mainboard/intel/wtm2/mainboard_smi.c @@ -60,7 +60,6 @@ int mainboard_smi_apmc(u8 apmc) return 0; } - intel_me_finalize_smm(); intel_pch_finalize_smm(); intel_northbridge_haswell_finalize_smm(); intel_cpu_haswell_finalize_smm(); -- cgit v1.2.3