diff --git a/arch/risc-v/src/mpfs/mpfs_shead.S b/arch/risc-v/src/mpfs/mpfs_shead.S
index 795e4b93e37..508025ff314 100644
--- a/arch/risc-v/src/mpfs/mpfs_shead.S
+++ b/arch/risc-v/src/mpfs/mpfs_shead.S
@@ -39,7 +39,11 @@
   .extern __trap_vec
 
   .section .start, "ax"
+#ifdef CONFIG_NUTTSBI
+  .global __start_s
+#else
   .global __start
+#endif
 
 /****************************************************************************
  * Name: __start
@@ -52,8 +56,11 @@
  *
  ****************************************************************************/
 
+#ifdef CONFIG_NUTTSBI
+__start_s:
+#else
 __start:
-
+#endif
   /* Disable all interrupts in sie */
 
   csrw sie, zero
diff --git a/boards/risc-v/mpfs/icicle/configs/knsh/defconfig b/boards/risc-v/mpfs/icicle/configs/knsh/defconfig
index 8372f24236e..f97c9225c32 100644
--- a/boards/risc-v/mpfs/icicle/configs/knsh/defconfig
+++ b/boards/risc-v/mpfs/icicle/configs/knsh/defconfig
@@ -77,6 +77,9 @@ CONFIG_NSH_ARCHINIT=y
 CONFIG_NSH_FILE_APPS=y
 CONFIG_NSH_LINELEN=160
 CONFIG_NSH_STRERROR=y
+CONFIG_NUTTSBI=y
+CONFIG_NUTTSBI_MTIMECMP_BASE=0x02004000
+CONFIG_NUTTSBI_MTIME_BASE=0x0200bff8
 CONFIG_PREALLOC_TIMERS=4
 CONFIG_PSEUDOFS_SOFTLINKS=y
 CONFIG_RAM_SIZE=2097152
diff --git a/boards/risc-v/mpfs/icicle/scripts/ld-kernel.script b/boards/risc-v/mpfs/icicle/scripts/ld-kernel.script
index 93e67aec0a8..cea4ae18576 100644
--- a/boards/risc-v/mpfs/icicle/scripts/ld-kernel.script
+++ b/boards/risc-v/mpfs/icicle/scripts/ld-kernel.script
@@ -73,6 +73,13 @@ SECTIONS
 
     _eronly = ABSOLUTE(.);
 
+    /* No init section */
+
+    .noinit (NOLOAD) : ALIGN(4) {
+        *(.noinit)
+        *(.noinit.*)
+    } > ksram
+
     .data : ALIGN(4) {
         _sdata = ABSOLUTE(.);
         *(.data .data.*)