diff --git a/cpu/mc1322x/cpu.c b/cpu/mc1322x/cpu.c
new file mode 100644
index 0000000000..89c640b0dc
--- /dev/null
+++ b/cpu/mc1322x/cpu.c
@@ -0,0 +1,19 @@
+/*
+ * cpu.c - MC1322X architecture common support functions
+ * Copyright (C) 2013 Oliver Hahm <oliver.hahm@inria.fr>
+ *
+ * This source code is licensed under the GNU General Public License,
+ * Version 3.  See the file LICENSE for more details.
+ *
+ * This file is part of RIOT.
+ *
+ */
+
+#include "mc1322x.h"
+
+__attribute__((naked,noreturn)) void arm_reset(void)
+{
+    dINT();
+    CRM->SW_RST = SW_RST_VAL;
+    while(1);
+}
diff --git a/cpu/mc1322x/mc1322x_syscalls.c b/cpu/mc1322x/mc1322x_syscalls.c
new file mode 100644
index 0000000000..4844e7fccc
--- /dev/null
+++ b/cpu/mc1322x/mc1322x_syscalls.c
@@ -0,0 +1,56 @@
+/*
+ * mc1322x_syscalls.c - MCU dependent syscall implementation
+ * Copyright (C) 2013 Oliver Hahm <oliver.hahm@inria.fr>
+ *
+ * This source code is licensed under the GNU General Public License,
+ * Version 3.  See the file LICENSE for more details.
+ *
+ * This file is part of RIOT.
+ */
+
+#include <errno.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include "irq.h"
+
+extern uintptr_t __heap_start;     ///< start of heap memory space
+extern uintptr_t __heap_end;       ///< maximum for end of heap memory space
+
+/// current position in heap
+static caddr_t heap = (caddr_t)&__heap_start;
+/// maximum position in heap
+static const caddr_t heap_max = (caddr_t)&__heap_end;
+// start position in heap
+static const caddr_t heap_start = (caddr_t)&__heap_start;
+
+/*-----------------------------------------------------------------------------------*/
+caddr_t _sbrk_r(struct _reent *r, size_t incr)
+{
+    uint32_t cpsr = disableIRQ();
+
+    /* check all heaps for a chunk of the requested size */
+    caddr_t new_heap = heap + incr;
+
+    #ifdef MODULE_TRACELOG
+    trace_pointer(TRACELOG_EV_MEMORY, heap);
+    #endif
+    if( new_heap <= heap_max ) {
+        caddr_t prev_heap = heap;
+#ifdef MODULE_TRACELOG
+        trace_pointer(TRACELOG_EV_MEMORY, new_heap);
+#endif
+        heap = new_heap;
+
+        r->_errno = 0;
+        restoreIRQ(cpsr);
+        return prev_heap;
+    }
+    restoreIRQ(cpsr);
+    #ifdef MODULE_TRACELOG
+    trace_string(TRACELOG_EV_MEMORY, "heap!");                                  // heap full
+    #endif
+
+    r->_errno = ENOMEM;
+    return NULL;
+}