diff options
Diffstat (limited to 'src/soc/intel')
| -rw-r--r-- | src/soc/intel/apollolake/romstage.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/src/soc/intel/apollolake/romstage.c b/src/soc/intel/apollolake/romstage.c index 1db2982214..a8a0dd1d44 100644 --- a/src/soc/intel/apollolake/romstage.c +++ b/src/soc/intel/apollolake/romstage.c @@ -304,6 +304,17 @@ static void soc_memory_init_params(FSPM_UPD *mupd) die("Can not find SoC devicetree\n"); m_cfg->PrmrrSize = config->PrmrrSize; + + /* FSP performs a PERST# signal deassertion for PCIe ports with + * the GPIO address specified in these UPDs. Over-ride the default + * addresses with 0 to bypass PERST# signal deassertion in FSP. + */ + m_cfg->RootPort0Perst = 0; + m_cfg->RootPort1Perst = 0; + m_cfg->RootPort2Perst = 0; + m_cfg->RootPort3Perst = 0; + m_cfg->RootPort4Perst = 0; + m_cfg->RootPort5Perst = 0; #endif } |