diff --git a/kernel/crt0.S b/kernel/crt0.S
index e003faf..5e71de9 100644
--- a/kernel/crt0.S
+++ b/kernel/crt0.S
@@ -33,6 +33,14 @@ pos_init_entry:
     csrr    a0, 0xF14
     andi    a1, a0, 0x1f
     srli    a0, a0, 5
+#ifdef ARCHI_CL_BOOT
+
+    li      a2, ARCHI_FC_CID
+    beq     a0, a2, do_cl_boot
+    bnez    a1, pe_start
+
+#else
+
 #ifdef ARCHI_FC_CID
     li      a2, ARCHI_FC_CID
     bne     a0, a2, pe_start
@@ -41,6 +49,8 @@ pos_init_entry:
 #endif
 #endif
 
+#endif
+
 
 
     # Clear the bss segment
@@ -155,4 +165,17 @@ pe_start:
     mul  x1, x3, a1
     add  x2, x2, x1
     j    cluster_entry_stub
-#endif
\ No newline at end of file
+#endif
+
+do_cl_boot:
+    li  x2, 0x10200000
+    li  x3, 0x1
+    la  x4, _start
+    sw  x4, 0x40(x2)
+    sw  x3, 8(x2)
+
+loop:
+    li x2, 0x1a109800
+    sw x0, 0(x2)
+    wfi
+    j loop
\ No newline at end of file
diff --git a/rules/pulpos/default_rules.mk b/rules/pulpos/default_rules.mk
index b3e60bc..b1328cf 100644
--- a/rules/pulpos/default_rules.mk
+++ b/rules/pulpos/default_rules.mk
@@ -75,6 +75,10 @@ ifdef CONFIG_NO_FC
 PULP_CFLAGS += -DARCHI_NO_FC=1
 endif
 
+ifdef CONFIG_CL_BOOT
+PULP_CFLAGS += -DARCHI_CL_BOOT=1
+endif
+
 ifdef CONFIG_IO_UART
 PULP_CFLAGS += -DCONFIG_IO_UART=$(CONFIG_IO_UART)
 endif