diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/northbridge/intel/sandybridge/Kconfig | 13 | ||||
| -rw-r--r-- | src/northbridge/intel/sandybridge/raminit.c | 7 |
2 files changed, 19 insertions, 1 deletions
diff --git a/src/northbridge/intel/sandybridge/Kconfig b/src/northbridge/intel/sandybridge/Kconfig index 9cd522f85b..1388b8770d 100644 --- a/src/northbridge/intel/sandybridge/Kconfig +++ b/src/northbridge/intel/sandybridge/Kconfig @@ -64,6 +64,19 @@ config NATIVE_RAMINIT_IGNORE_XMP_MAX_DIMMS Disabled by default as it might cause system instability. Handle with care! +config NATIVE_RAMINIT_IGNORE_XMP_REQUESTED_VOLTAGE + bool "Ignore XMP profile requested voltage" + default n + depends on USE_NATIVE_RAMINIT + help + Native raminit only supports 1.5V operation, but there are DIMMs + which request 1.65V operation in XMP profiles. This option allows + raminit to use these XMP profiles anyway, instead of falling back + to non-XMP settings. + Disabled by default because it allows forcing memory to run out of + specification. Consider this to be an overclocking option. + Handle with care! + config CBFS_SIZE hex default 0x100000 diff --git a/src/northbridge/intel/sandybridge/raminit.c b/src/northbridge/intel/sandybridge/raminit.c index 3077c0ae8f..8acfb98b57 100644 --- a/src/northbridge/intel/sandybridge/raminit.c +++ b/src/northbridge/intel/sandybridge/raminit.c @@ -200,7 +200,12 @@ static void dram_find_spds_ddr3(spd_raw_data *spd, ramctr_timing *ctrl) /* TODO: Support DDR3 voltages other than 1500mV */ printram("XMP profile's requested %u mV is unsupported.\n", dimm->voltage); - spd_decode_ddr3(dimm, spd[spd_slot]); + + if (CONFIG(NATIVE_RAMINIT_IGNORE_XMP_REQUESTED_VOLTAGE)) + printk(BIOS_WARNING, + "XMP requested voltage will be ignored.\n"); + else + spd_decode_ddr3(dimm, spd[spd_slot]); } /* Fill in CRC16 for MRC cache */ |