commit ba7eb66f6003a7556423c853a26966044a613bc7
author Douglas Reis <doreis@lowrisc.org> Thu Nov 18 13:19:28 2021 +0000
committer Alphan Ulusoy <alphan@google.com> Tue Nov 23 09:59:49 2021 -0500
tree a51c799b59d99048277d6c5556328d30557f62b9
parent 1583778ef713d774ebb7ac41536db15a60fc428d

[dif] Implement the function dif_csrng_stop

Signed-off-by: Douglas Reis <doreis@lowrisc.org>

sw/device/lib/dif/dif_edn.c

diff --git a/sw/device/lib/dif/dif_edn.c b/sw/device/lib/dif/dif_edn.c
index 3b2e3fc..b5849f9 100644
--- a/sw/device/lib/dif/dif_edn.c
+++ b/sw/device/lib/dif/dif_edn.c
@@ -5,3 +5,14 @@
 #include "sw/device/lib/dif/dif_edn.h"
 
 #include "edn_regs.h"  // Generated
+
+OT_WARN_UNUSED_RESULT
+dif_result_t dif_edn_stop(const dif_edn_t *edn) {
+  if (edn == NULL) {
+    return kDifBadArg;
+  }
+
+  mmio_region_write32(edn->base_addr, EDN_CTRL_REG_OFFSET, EDN_CTRL_REG_RESVAL);
+
+  return kDifOk;
+}