diff --git a/sw/io.c b/sw/io.c
deleted file mode 100644
index 685a771..0000000
--- a/sw/io.c
+++ /dev/null
@@ -1,6 +0,0 @@
-#include <io.h>
-
-int io_remap(int region) {
-    *(unsigned char*)IO_REMAP = region;
-    return (*(unsigned char*)IO_REMAP == region);
-}
diff --git a/sw/io.h b/sw/io.h
deleted file mode 100644
index a5247b1..0000000
--- a/sw/io.h
+++ /dev/null
@@ -1,15 +0,0 @@
-#ifndef _IO_H
-#define IO_H
-
-
-#define IO_REMAP 0x7fff
-
-
-enum io_regions {
-    io_region_de10lite = 0,
-};
-
-
-int io_remap(int region);
-
-#endif
diff --git a/sw/main.c b/sw/main.c
index 296b1c6..4940ce5 100644
--- a/sw/main.c
+++ b/sw/main.c
@@ -1,6 +1,5 @@
 #include <io.h>
 
 int main() {
-    io_remap(io_region_de10lite);
     return 0;
 }