diff --git a/firmware/soc.py b/firmware/soc.py
index 78d2e61..d4b2a5b 100644
--- a/firmware/soc.py
+++ b/firmware/soc.py
@@ -259,7 +259,9 @@ class UpsilonSoC(SoCCore):
 				bus_data_width = 32,
 				bus_address_width = 32,
 				bus_timeout = int(1e6),
-				cpu_type = "vexriscv",
+				cpu_type = "vexriscv_smp",
+                cpu_count = 1,
+                cpu_variant="linux",
 				integrated_rom_size=0x20000,
 				integrated_sram_size = 0x2000,
 				csr_data_width=32,