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-rw-r--r--src/soc/intel/xeon_sp/cpx/romstage.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/src/soc/intel/xeon_sp/cpx/romstage.c b/src/soc/intel/xeon_sp/cpx/romstage.c
index 6f47a30234..e423d0a6d1 100644
--- a/src/soc/intel/xeon_sp/cpx/romstage.c
+++ b/src/soc/intel/xeon_sp/cpx/romstage.c
@@ -163,5 +163,8 @@ void platform_fsp_memory_init_params_cb(FSPM_UPD *mupd, uint32_t version)
m_cfg->VtdSupport = config->vtd_support;
m_cfg->X2apic = config->x2apic;
+ /* Disable ISOC */
+ m_cfg->isocEn = 0;
+
mainboard_memory_init_params(mupd);
}