From a2c3d899b79f41176d40d764446c4061882d0734 Mon Sep 17 00:00:00 2001 From: Joachim Fenkes Date: Mon, 17 Oct 2016 16:06:31 -0500 Subject: 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 Tested-by: Hostboot CI Reviewed-by: Soma Bhanutej Reviewed-by: SRINIVAS V. POLISETTY Reviewed-by: Jennifer A. Stofer Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/31384 Tested-by: FSP CI Jenkins Reviewed-by: Daniel M. Crowell --- src/import/chips/p9/procedures/hwp/perv/p9_set_fsi_gp_shadow.H | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'src/import/chips/p9/procedures/hwp/perv') 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, -- cgit v1.2.1