diff options
| -rw-r--r-- | import/chips/p9/procedures/ppe_closed/cme/stop_cme/p9_hcd_core_scan0.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/import/chips/p9/procedures/ppe_closed/cme/stop_cme/p9_hcd_core_scan0.c b/import/chips/p9/procedures/ppe_closed/cme/stop_cme/p9_hcd_core_scan0.c index 9ee7436f..62ad66df 100644 --- a/import/chips/p9/procedures/ppe_closed/cme/stop_cme/p9_hcd_core_scan0.c +++ b/import/chips/p9/procedures/ppe_closed/cme/stop_cme/p9_hcd_core_scan0.c @@ -68,9 +68,28 @@ p9_hcd_core_scan0(uint32_t core, uint64_t regions, uint64_t scan_type) scom_data &= ~BIT64(0); CME_PUTSCOM(PERV_OPCG_REG0, core, scom_data); - PK_TRACE("trigger Scan0"); + PK_TRACE("Setting SCAN0 Mode"); CME_GETSCOM(PERV_OPCG_REG0, core, CME_SCOM_AND, scom_data); - scom_data |= BIT64(2); + scom_data |= BIT64(3); + CME_PUTSCOM(PERV_OPCG_REG0, core, scom_data); + + // Setting Scan length count + // Longest (lbisted) stump in the core for DD1: 2410 latches + // Longest (lbisted) stump in the core for DD2: 1020 latches + + PK_TRACE("Setting scan length count"); + + // Set bits 59:63 to 24 for the NSL_FILL_COUNT +#if NIMBUS_DD_LEVEL == 1 + scom_data = ((uint64_t)2410 << SHIFT64(11)) | 24; +#else + scom_data = ((uint64_t)1024 << SHIFT64(11)) | 24; +#endif + CME_PUTSCOM(PERV_OPCG_REG1, core, scom_data); + + PK_TRACE("Trigger OPCG GO"); + CME_GETSCOM(PERV_OPCG_REG0, core, CME_SCOM_AND, scom_data); + scom_data |= BIT64(1); CME_PUTSCOM(PERV_OPCG_REG0, core, scom_data); PK_TRACE("Poll OPCG done bit to check for run-N completeness"); @@ -81,6 +100,16 @@ p9_hcd_core_scan0(uint32_t core, uint64_t regions, uint64_t scan_type) } while(!(scom_data & BIT64(8))); + PK_TRACE("Clearing SCAN0 Mode"); + CME_GETSCOM(PERV_OPCG_REG0, core, CME_SCOM_AND, scom_data); + scom_data &= ~BIT64(3); + CME_PUTSCOM(PERV_OPCG_REG0, core, scom_data); + + PK_TRACE("Clearing scan length count"); + CME_GETSCOM(PERV_OPCG_REG1, core, CME_SCOM_AND, scom_data); + scom_data &= ~BITS64(0, 12); + CME_PUTSCOM(PERV_OPCG_REG1, core, scom_data); + PK_TRACE("clear all clock REGIONS and type"); CME_PUTSCOM(PERV_CLK_REGION, core, 0); |
