diff options
Diffstat (limited to 'import/chips/p9/procedures/hwp/lib/p9_common_poweronoff.C')
| -rw-r--r-- | import/chips/p9/procedures/hwp/lib/p9_common_poweronoff.C | 40 |
1 files changed, 28 insertions, 12 deletions
diff --git a/import/chips/p9/procedures/hwp/lib/p9_common_poweronoff.C b/import/chips/p9/procedures/hwp/lib/p9_common_poweronoff.C index 64af9bf3..a39319bc 100644 --- a/import/chips/p9/procedures/hwp/lib/p9_common_poweronoff.C +++ b/import/chips/p9/procedures/hwp/lib/p9_common_poweronoff.C @@ -39,14 +39,20 @@ //------------------------------------------------------------------------------ // Includes //------------------------------------------------------------------------------ + +#include <p9_quad_scom_addresses.H> +#include "p9_hcd_common.H" #include "p9_common_poweronoff.H" -#include "p9_quad_scom_addresses.H" //------------------------------------------------------------------------------ // Constant Definitions: //------------------------------------------------------------------------------ // Define only address offset to be compatible with both core and cache domain +const uint64_t NET_CTRL0_WOR[2] = { C_NET_CTRL0_WOR, + EQ_NET_CTRL0_WOR + }; + const uint64_t PPM_PFCS[2] = { C_PPM_PFCS_SCOM, EQ_PPM_PFCS_SCOM }; @@ -168,6 +174,7 @@ p9_common_poweronoff( FAPI_TRY(fapi2::getScom(i_target, PPM_PFCS[l_type], l_data), "getScom failed for address PPM_PFCS"); // poll + FAPI_DBG("timeout l_loopsPerMs. %x", l_loopsPerMs); } while ((l_data.getBit < VDD_PG_STATE_BIT + PG_STATE_IDLE_OFFSET > () == 0 ) && (--l_loopsPerMs != 0)); @@ -200,7 +207,7 @@ p9_common_poweronoff( auto pollVcsFSMIdle = [&] () { - // Poll for PFETCNTLSTAT_REG[VDD_PG_STATE] for 0b1000 (FSM idle) + // Poll for PFETCNTLSTAT_REG[VCS_PG_STATE] for 0b1000 (FSM idle) // – Timeout value = 1ms FAPI_DBG("Polling for power gate sequencer state: FSM idle"); l_loopsPerMs = 1E6 / FSM_IDLE_POLLING_HW_NS_DELAY; @@ -299,14 +306,14 @@ p9_common_poweronoff( // vcs_pfet_val_override = 0 (Override disabled) // vcs_pfet_sel_override = 0 (Override disabled) // Note there is no vcs_pfet_enable_regulation_finger - FAPI_DBG("Clear VSS PFET stage select and value override bits"); + FAPI_DBG("Clear VCS PFET stage select and value override bits"); l_data.flush<0>(). setBit<VCS_PFET_VAL_OVERRIDE_BIT>(). setBit<VCS_PFET_SEL_OVERRIDE_BIT>(); FAPI_TRY(fapi2::putScom(i_target, PPM_PFCS_CLR[l_type], l_data), "putScom failed for address PPM_PFCS_CLR"); - FAPI_DBG("Force VSS on"); + FAPI_DBG("Force VCS on"); l_data.flush<0>().insertFromRight <VCS_PFET_FORCE_STATE_BIT, PFET_STATE_LENGTH>(PFET_FORCE_VON); FAPI_TRY(fapi2::putScom(i_target, PPM_PFCS_OR[l_type], l_data), @@ -320,7 +327,7 @@ p9_common_poweronoff( // vcs_pfet_force_state = 00 (No Operation); // all fields set to 1 for WAND // Use PPM_PFCS_CLR, vdd_pfet_force_state = ~(0b00) - FAPI_DBG("vss_pfet_force_state = 00, or Idle"); + FAPI_DBG("vcs_pfet_force_state = 00, or Idle"); l_data.flush<0>().insertFromRight <VCS_PFET_FORCE_STATE_BIT, PFET_STATE_LENGTH>(~PFET_NOP); FAPI_TRY(fapi2::putScom(i_target, PPM_PFCS_CLR[l_type], l_data), @@ -380,14 +387,14 @@ p9_common_poweronoff( // vcs_pfet_val_override = 0 (Override disabled) // vcs_pfet_sel_override = 0 (Override disabled) // Note there is no vcs_pfet_enable_regulation_finger - FAPI_DBG("Clear VSS PFET stage select and value override bits"); + FAPI_DBG("Clear VCS PFET stage select and value override bits"); l_data.flush<0>(). setBit<VCS_PFET_VAL_OVERRIDE_BIT>(). setBit<VCS_PFET_SEL_OVERRIDE_BIT>(); FAPI_TRY(fapi2::putScom(i_target, PPM_PFCS_CLR[l_type], l_data), "putScom failed for address PPM_PFCS_CLR"); - FAPI_DBG("Force VSS off"); + FAPI_DBG("Force VCS off"); l_data.flush<0>(). insertFromRight <VCS_PFET_FORCE_STATE_BIT, PFET_STATE_LENGTH>(PFET_FORCE_VOFF); @@ -422,6 +429,15 @@ p9_common_poweronoff( FAPI_TRY(fapi2::putScom(i_target, PPM_PFDLY, l_data), "putScom failed for address PPM_PFDLY"); #endif + fapi2::buffer<uint64_t> l_data64; + FAPI_DBG("Assert PCB fence via NET_CTRL0[25]"); + FAPI_TRY(putScom(i_target, NET_CTRL0_WOR[l_type], MASK_SET(25))); + + FAPI_DBG("Assert chiplet electrical fence via NET_CTRL0[26]"); + FAPI_TRY(putScom(i_target, NET_CTRL0_WOR[l_type], MASK_SET(26))); + + FAPI_DBG("Assert vital thold via NET_CTRL0[16]"); + FAPI_TRY(putScom(i_target, NET_CTRL0_WOR[l_type], MASK_SET(16))); /////////////////////////////////////////////////////////////////////////// // Procedure code @@ -487,12 +503,8 @@ p9_common_poweronoff( .set_ADDRESS(PPM_PFCS[l_type]), "PFET_FORCE_STATE not 0"); - // 2) Set bits to program HW to turn off VDD PFET, and + // 2) Set bits to program HW to turn off VCS PFET, and // 3) Poll state bit until Pfet sequence is complete - FAPI_TRY(powerOffVdd()); - - // 4) Set bits to program HW to turn off VCS PFET, and - // 5) Poll state bit until Pfet sequence is complete // Note: if (i_target.getType() & fapi2::TARGET_TYPE_EQ) doesn't work. // Created a POWER_*_VDD label to delineate Vcs and Vdd @@ -501,6 +513,10 @@ p9_common_poweronoff( FAPI_TRY(powerOffVcs()); } + // 4) Set bits to program HW to turn off VDD PFET, and + // 5) Poll state bit until Pfet sequence is complete + FAPI_TRY(powerOffVdd()); + } break; } |
