diff --git a/drivers/atm/tonga.h b/drivers/atm/tonga.h
new file mode 100644
index 0000000..672da96
--- /dev/null
+++ b/drivers/atm/tonga.h
@@ -0,0 +1,20 @@
+/* drivers/atm/tonga.h - Efficient Networks Tonga (PCI bridge) declarations */
+ 
+/* Written 1995 by Werner Almesberger, EPFL LRC */
+ 
+
+#ifndef DRIVER_ATM_TONGA_H
+#define DRIVER_ATM_TONGA_H
+
+#define PCI_TONGA_CTRL	0x60	/* control register */
+
+#define END_SWAP_DMA	0x80	/* endian swap on DMA */
+#define END_SWAP_BYTE	0x40	/* endian swap on slave byte accesses */
+#define END_SWAP_WORD	0x20	/* endian swap on slave word accesses */
+#define SEPROM_MAGIC	0x0c	/* obscure required pattern (ASIC only) */
+#define SEPROM_DATA	0x02	/* serial EEPROM data (ASIC only) */
+#define SEPROM_CLK	0x01	/* serial EEPROM clock (ASIC only) */
+
+#define SEPROM_ESI_BASE	64	/* start of ESI in serial EEPROM */
+
+#endif