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mb/google/rex/var/screebo: Set `SAGV_POINTS_0_1_2` to avoid hang 

Setting SaGvWpMask to SAGV_POINTS_0_1_2 in dev tree can effectively
avoid the idle hang issue, but it will affect the system power.
(Before root cause, this is a short term workaround to unblock function test.)

BUG=b:287170545
TEST=Able to idle for more than 5+ hours without any hang.

Signed-off-by: Wentao Qin <qinwentao@huaqin.corp-partner.google.com>
Change-Id: I0947815ab79b470d2ae922cffdd8250c60cf1afd
Reviewed-on: https://review.coreboot.org/c/coreboot/+/77520
Reviewed-by: Subrata Banik <subratabanik@google.com>
Reviewed-by: Kane Chen <kane.chen@intel.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kun Liu <liukun11@huaqin.corp-partner.google.com>
This commit is contained in:
Wentao Qin 2023-08-29 20:09:21 +08:00 committed by Subrata Banik
parent 7de2fa3c7f
commit 5c35d30ffc
1 changed files with 3 additions and 0 deletions
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3
src/mainboard/google/rex/variants/screebo/overridetree.cb
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@ -54,6 +54,9 @@ chip soc/intel/meteorlake
# Temporary setting TCC of 80C = Tj max (110) - TCC_Offset (30)
register "tcc_offset" = "30"
# TODO(b/287170545): workaround avoid DUT random hang
register "sagv_wp_bitmap" = "SAGV_POINTS_0_1_2"
# Enable Display Port Configuration
register "ddi_ports_config" = "{
[DDI_PORT_A] = DDI_ENABLE_HPD,