diff --git a/sw/include/dif/axi_llc.h b/sw/include/dif/axi_llc.h
new file mode 100644
index 000000000..c45f24889
--- /dev/null
+++ b/sw/include/dif/axi_llc.h
@@ -0,0 +1,13 @@
+// Copyright 2022 ETH Zurich and University of Bologna.
+// Licensed under the Apache License, Version 2.0, see LICENSE for details.
+// SPDX-License-Identifier: Apache-2.0
+//
+// Cyril Koenig <cykoenig@iis.ee.ethz.ch>
+
+#pragma once
+
+void llc_enable();
+
+void llc_flush();
+
+void llc_disable();
diff --git a/sw/lib/dif/llc.c b/sw/lib/dif/llc.c
new file mode 100644
index 000000000..9943b5c36
--- /dev/null
+++ b/sw/lib/dif/llc.c
@@ -0,0 +1,37 @@
+// Copyright 2022 ETH Zurich and University of Bologna.
+// Licensed under the Apache License, Version 2.0, see LICENSE for details.
+// SPDX-License-Identifier: Apache-2.0
+//
+// Cyril Koenig <cykoenig@iis.ee.ethz.ch>
+
+#include "dif/axi_llc.h"
+#include "regs/axi_llc.h"
+#include "util.h"
+#include "params.h"
+
+void llc_enable() {
+    *reg32(&__base_llc, AXI_LLC_CFG_SPM_LOW_REG_OFFSET ) = 0x00000000;
+    *reg32(&__base_llc, AXI_LLC_CFG_SPM_HIGH_REG_OFFSET) = 0x00000000;
+    fence();
+    *reg32(&__base_llc, AXI_LLC_COMMIT_CFG_REG_OFFSET) = 0x1;
+    fence();
+}
+
+void llc_flush() {
+    *reg32(&__base_llc, AXI_LLC_CFG_FLUSH_LOW_REG_OFFSET ) = 0xffffffff;
+    *reg32(&__base_llc, AXI_LLC_CFG_FLUSH_HIGH_REG_OFFSET) = 0xffffffff;
+    fence();
+    *reg32(&__base_llc, AXI_LLC_COMMIT_CFG_REG_OFFSET) = 0x1;
+    fence();
+    while(*reg32(&__base_llc, AXI_LLC_COMMIT_CFG_REG_OFFSET) != 0);
+}
+
+void llc_disable() {
+    *reg32(&__base_llc, AXI_LLC_CFG_SPM_LOW_REG_OFFSET ) = 0xffffffff;
+    *reg32(&__base_llc, AXI_LLC_CFG_SPM_HIGH_REG_OFFSET) = 0xffffffff;
+    *reg32(&__base_llc, AXI_LLC_CFG_FLUSH_LOW_REG_OFFSET ) = 0xffffffff;
+    *reg32(&__base_llc, AXI_LLC_CFG_FLUSH_HIGH_REG_OFFSET) = 0xffffffff;
+    fence();
+    *reg32(&__base_llc, AXI_LLC_COMMIT_CFG_REG_OFFSET) = 0x1;
+    fence();
+}