diff --git a/include/video/pmag-ba-fb.h b/include/video/pmag-ba-fb.h
index cebef07..fceb6c0 100644
--- a/include/video/pmag-ba-fb.h
+++ b/include/video/pmag-ba-fb.h
@@ -1,24 +1,27 @@
 /*
- *      linux/drivers/video/pmag-ba-fb.h
+ *	linux/include/video/pmag-ba-fb.h
  *
- *      TurboChannel PMAG-BA framebuffer card support,
- *      Copyright (C) 1999,2000,2001 by
- *      Michael Engel <engel@unix-ag.org>,
- *      Karsten Merker <merker@linuxtag.org>
- *      This file is subject to the terms and conditions of the GNU General
- *      Public License.  See the file COPYING in the main directory of this
- *      archive for more details.
+ *	TURBOchannel PMAG-BA Color Frame Buffer (CFB) card support,
+ *	Copyright (C) 1999, 2000, 2001 by
+ *	Michael Engel <engel@unix-ag.org>,
+ *	Karsten Merker <merker@linuxtag.org>
+ *	Copyright (c) 2005  Maciej W. Rozycki
+ *
+ *	This file is subject to the terms and conditions of the GNU General
+ *	Public License.  See the file COPYING in the main directory of this
+ *	archive for more details.
  */
 
-/*
- * Bt459 RAM DAC register base offset (rel. to TC slot base address)
- */
+/* IOmem resource offsets.  */
+#define PMAG_BA_FBMEM		0x000000	/* frame buffer */
+#define PMAG_BA_BT459		0x200000	/* Bt459 RAMDAC */
+#define PMAG_BA_IRQ		0x300000	/* IRQ acknowledge */
+#define PMAG_BA_ROM		0x380000	/* REX option ROM */
+#define PMAG_BA_BT438		0x380000	/* Bt438 clock chip reset */
+#define PMAG_BA_SIZE		0x400000	/* address space size */
 
-#define PMAG_BA_BT459_OFFSET                    0x00200000
-
-/*
- * Begin of PMAG-BA framebuffer memory relative to TC slot address,
- * resolution is 1024x864x8
- */
-
-#define PMAG_BA_ONBOARD_FBMEM_OFFSET    0x00000000
+/* Bt459 register offsets, byte-wide registers.  */
+#define BT459_ADDR_LO		0x0		/* address low */
+#define BT459_ADDR_HI		0x4		/* address high */
+#define BT459_DATA		0x8		/* data window register */
+#define BT459_CMAP		0xc		/* color map window register */