diff --git a/BUILD.gn b/BUILD.gn
index 4340c5d..301eb46 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -35,6 +35,10 @@
   deps = [ "//src:hafnium(:secure_rd_fremont_clang)" ]
 }
 
+group("secure_rd_fremont_cfg1") {
+  deps = [ "//src:hafnium(:secure_rd_fremont_cfg1_clang)" ]
+}
+
 group("root") {
   deps = [
     ":aem_v8a_fvp_vhe",
@@ -43,6 +47,7 @@
     ":secure_aem_v8a_fvp_vhe",
     ":secure_qemu_aarch64",
     ":secure_rd_fremont",
+    ":secure_rd_fremont_cfg1",
     ":secure_tc",
     "//src/arch/aarch64/qemuloader:bl(:qemu_aarch64_vhe_clang)",
   ]
@@ -108,6 +113,31 @@
   }
 }
 
+aarch64_toolchains("secure_rd_fremont_cfg1") {
+  cpu = "cortex-a57"
+  origin_address = "0xF9000000"
+  boot_flow = "//src/boot_flow:spmc"
+  console = "//src/arch/aarch64/pl011"
+  iommu = "//src/iommu:absent"
+  gic_version = 4
+  gicd_base_address = "0x30000000"
+  gicr_base_address = "0x30100000"
+  gicr_frames = 8
+  heap_pages = 180
+  max_cpus = 8
+  max_vms = 8
+  toolchain_args = {
+    plat_ffa = "//src/arch/aarch64/plat/ffa:spmc"
+    plat_psci = "//src/arch/aarch64/plat/psci:spmc"
+    plat_interrupts = "//src/arch/aarch64/plat/interrupts:gicv3"
+    secure_world = "1"
+    pl011_base_address = "0x2A410000"
+    enable_mte = "1"
+    plat_log_level = "LOG_LEVEL_INFO"
+    plat_num_virtual_interrupts_ids = 1024
+  }
+}
+
 aarch64_toolchains("secure_aem_v8a_fvp_vhe") {
   cpu = "cortex-a57"
   origin_address = "0x06000000"