diff --git a/src/superio/sis/950/superio.c b/src/superio/sis/950/superio.c
new file mode 100644
index 0000000000..6ee98dfc27
--- /dev/null
+++ b/src/superio/sis/950/superio.c
@@ -0,0 +1,67 @@
+// just define these here. We may never need them anywhere else
+#define PNP_COM1_DEVICE 0x1
+#define PNP_COM2_DEVICE 0x2
+
+#include <subr.h>
+#include <cpu/p5/io.h>
+
+void
+enter_pnp()
+{
+    // unlock it XXX make this a subr at some point 
+    outb(0x87, 0x2e);
+    outb(0x01, 0x2e);
+    outb(0x55, 0x2e);
+    outb(0x55, 0x2e);
+}
+
+void
+exit_pnp()
+{
+    /* all done. */
+    // select configure control
+    outb(2, 0x2e);
+    outb(2, 0x2f);
+}
+
+#ifdef MUST_ENABLE_FLOPPY
+
+void enable_floppy()
+{
+	/* now set the LDN to floppy LDN */
+	outb(0x7, 0x2e);	/* pick reg. 7 */
+	outb(0x0, 0x2f);	/* LDN 0 to reg. 7 */
+
+	/* now select register 0x30, and set bit 1 in that register */
+	outb(0x30, 0x2e);
+	outb(0x1, 0x2f);
+
+}
+#endif /* MUST_ENABLE_FLOPPY */
+
+void
+enable_com(int com)
+{
+    /* now set the LDN to com LDN */
+    outb(0x7, 0x2e);	/* pick reg. 7 */
+    outb(com, 0x2f);	/* LDN 0 to reg. 7 */
+
+    /* now select register 0x30, and set bit 1 in that register */
+    outb(0x30, 0x2e);
+    outb(0x1, 0x2f);
+
+}
+
+void
+final_superio_fixup()
+{
+
+    enter_pnp();
+#ifdef MUST_ENABLE_FLOPPY
+    enable_floppy();
+#endif
+    enable_com(PNP_COM1_DEVICE);
+    enable_com(PNP_COM2_DEVICE);
+
+    exit_pnp();
+}