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| author | Joachim Fenkes <fenkes@de.ibm.com> | 2016-10-17 16:06:31 -0500 |
|---|---|---|
| committer | Daniel M. Crowell <dcrowell@us.ibm.com> | 2016-10-21 23:45:32 -0400 |
| commit | a2c3d899b79f41176d40d764446c4061882d0734 (patch) | |
| tree | 005be1e743ab7864854e4bbb1e548d35b29e28bc /src/import/chips/p9/procedures/hwp | |
| parent | 4e3309c4745d138b635ea763f59f5bc0f26b9d04 (diff) | |
| download | talos-hostboot-a2c3d899b79f41176d40d764446c4061882d0734.tar.gz talos-hostboot-a2c3d899b79f41176d40d764446c4061882d0734.zip | |
Don't raise VDD2VIO fence on warm IPL
The VDD2VIO fence will disable the Nest PLL, preventing the global endpoint
reset from propagating. This may cause a high VCS current state to reappear,
tripping the VCS voltage regulator.
The fence is only required for the initial voltage ramp-up state and doesn't
need to be set during warm boot. This change will cause the CBS to lower the
fence on a cold boot as well, but it would have been lowered in the next
CBS state anyway, so there's no harm done here.
Change-Id: I3f10e74351ac925fbfb3040a08ddce3b34576efa
CQ: HW390523
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/31371
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: Hostboot CI <hostboot-ci+hostboot@us.ibm.com>
Reviewed-by: Soma Bhanutej <soma.bhanu@in.ibm.com>
Reviewed-by: SRINIVAS V. POLISETTY <srinivan@in.ibm.com>
Reviewed-by: Jennifer A. Stofer <stofer@us.ibm.com>
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/31384
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Diffstat (limited to 'src/import/chips/p9/procedures/hwp')
| -rw-r--r-- | src/import/chips/p9/procedures/hwp/perv/p9_set_fsi_gp_shadow.H | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/import/chips/p9/procedures/hwp/perv/p9_set_fsi_gp_shadow.H b/src/import/chips/p9/procedures/hwp/perv/p9_set_fsi_gp_shadow.H index 66cde2e6c..26a5d0200 100644 --- a/src/import/chips/p9/procedures/hwp/perv/p9_set_fsi_gp_shadow.H +++ b/src/import/chips/p9/procedures/hwp/perv/p9_set_fsi_gp_shadow.H @@ -49,7 +49,7 @@ enum P9_SET_FSI_GP_SHADOW_Public_Constants { PERV_CTRL0_FLUSHVALUE = 0x7C0E2000, PERV_CTRL1_FLUSHVALUE = 0x63C00000, - ROOT_CTRL0_FLUSHVALUE = 0x80FF4003, + ROOT_CTRL0_FLUSHVALUE = 0x80FE4003, ROOT_CTRL1_FLUSHVALUE = 0x00180000, ROOT_CTRL2_FLUSHVALUE = 0x0000E000, ROOT_CTRL5_FLUSHVALUE = 0x00000000, |
