[coreboot] Doubt about SPD init in Skylake

王翔 merle at tya.email
Sat Dec 30 08:56:47 CET 2017


The system must initialize some arrays before initializing the SPD in order to execute FspMemoryInit. 
I do not know what these arrays do,  and how do I get these values when porting new motherboard.


These codes exist on the SKYLAKE platform which using FSP2.0.  Call path : 
fsp_memory_init->do_fsp_memory_init->platform_fsp_memory_init_params_cb->mainboard_memory_init_params


array list :
    FSPM_UPD->FspmConfig->DqByteMapCh0
    FSPM_UPD->FspmConfig->DqByteMapCh1
    FSPM_UPD->FspmConfig->DqsMapCpu2DramCh0
    FSPM_UPD->FspmConfig->DqsMapCpu2DramCh1
    FSPM_UPD->FspmConfig->RcompResistor
    FSPM_UPD->FspmConfig->RcompTarget





If you can help me extremely grateful ! ! !




------------------



王翔

安全研究员

广州市腾御安信息科技有限公司





广州市天河区珠江新城华穗路406号保利克洛维二期中景A座1020-1024
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