diff options
Diffstat (limited to 'src/usr/hwpf')
| -rw-r--r-- | src/usr/hwpf/hwp/sbe_centaur_init/sbe_centaur_init.C | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/src/usr/hwpf/hwp/sbe_centaur_init/sbe_centaur_init.C b/src/usr/hwpf/hwp/sbe_centaur_init/sbe_centaur_init.C index b749919a8..57451cb4a 100644 --- a/src/usr/hwpf/hwp/sbe_centaur_init/sbe_centaur_init.C +++ b/src/usr/hwpf/hwp/sbe_centaur_init/sbe_centaur_init.C @@ -71,6 +71,12 @@ const uint64_t CENTAUR_SBE_PNOR_MRR = 0; // Max SBE image buffer size const uint32_t MAX_SBE_IMG_SIZE = 48 * 1024; +// Low MSS freq for 32x32 machines +const uint32_t MSS_FREQ_32x32_CONFIG = 1066; + +// Low Nest Freq +const uint32_t LOW_NEST_FREQ = 2000; + namespace SBE_CENTAUR_INIT { @@ -95,9 +101,16 @@ void* call_sbe_centaur_init( void *io_pArgs ) TARGETING::TargetHandleList l_membufTargetList; getAllChips(l_membufTargetList, TYPE_MEMBUF); + // Get sys target to check capable nest frequencies + TARGETING::Target* l_sys = NULL; + targetService().getTopLevelTarget(l_sys); + assert(l_sys != NULL, "sbe_centaur_init: sys target is NULL"); + size_t l_sbePnorSize = 0; void* l_sbePnorAddr = NULL; errlHndl_t l_errl = NULL; + uint32_t l_booted_nest_freq = 0; + MRW_NEST_CAPABLE_FREQUENCIES_SYS l_mrw_nest_capable; IStepError l_StepError; @@ -213,8 +226,31 @@ void* call_sbe_centaur_init( void *io_pArgs ) // XIP customize is going to look for a PLL ring with a "stub" // mem freq -- so set to a default, then clear it (so as not // to mess up MSS HWP later - l_membuf_target->setAttr<TARGETING::ATTR_MSS_FREQ>(1600); + // Grab capable frequencies + l_mrw_nest_capable = + l_sys->getAttr<ATTR_MRW_NEST_CAPABLE_FREQUENCIES_SYS>(); + + // Get the nest freq we booted with + l_booted_nest_freq = l_sys->getAttr<TARGETING::ATTR_NEST_FREQ_MHZ>(); + + // If we are running nest at 2.0, and we support 2.0 and 2.4, we + // need to drop MSS freq to 1066 + if ((l_mrw_nest_capable == + MRW_NEST_CAPABLE_FREQUENCIES_SYS_2000_MHZ_OR_2400_MHZ) && + (l_booted_nest_freq == LOW_NEST_FREQ)) + { + TRACFCOMP(ISTEPS_TRACE::g_trac_isteps_trace, + "Reducing MSS frequency in sbe_centaur_init to %d based on " + "nest frequency", MSS_FREQ_32x32_CONFIG); + + l_membuf_target->setAttr + <TARGETING::ATTR_MSS_FREQ>(MSS_FREQ_32x32_CONFIG); + } + else //boot as normal + { + l_membuf_target->setAttr<TARGETING::ATTR_MSS_FREQ>(1600); + } FAPI_INVOKE_HWP( l_errl, cen_xip_customize, l_fapiTarget, l_sbePnorAddr, |
