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diff --git a/include/asm-m68k/machw.h b/include/asm-m68k/machw.h
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+++ b/include/asm-m68k/machw.h
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+/*
+** linux/machw.h -- This header defines some macros and pointers for
+** the various Macintosh custom hardware registers.
+**
+** Copyright 1997 by Michael Schmitz
+**
+** 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.
+**
+*/
+
+#ifndef _ASM_MACHW_H_
+#define _ASM_MACHW_H_
+
+/*
+ * head.S maps the videomem to VIDEOMEMBASE
+ */
+
+#define VIDEOMEMBASE 0xf0000000
+#define VIDEOMEMSIZE (4096*1024)
+#define VIDEOMEMMASK (-4096*1024)
+
+#ifndef __ASSEMBLY__
+
+#include <linux/types.h>
+
+#if 0
+/* Mac SCSI Controller 5380 */
+
+#define MAC_5380_BAS (0x50F10000) /* This is definitely wrong!! */
+struct MAC_5380 {
+ u_char scsi_data;
+ u_char char_dummy1;
+ u_char scsi_icr;
+ u_char char_dummy2;
+ u_char scsi_mode;
+ u_char char_dummy3;
+ u_char scsi_tcr;
+ u_char char_dummy4;
+ u_char scsi_idstat;
+ u_char char_dummy5;
+ u_char scsi_dmastat;
+ u_char char_dummy6;
+ u_char scsi_targrcv;
+ u_char char_dummy7;
+ u_char scsi_inircv;
+};
+#define mac_scsi ((*(volatile struct MAC_5380 *)MAC_5380_BAS))
+
+/*
+** SCC Z8530
+*/
+
+#define MAC_SCC_BAS (0x50F04000)
+struct MAC_SCC
+ {
+ u_char cha_a_ctrl;
+ u_char char_dummy1;
+ u_char cha_a_data;
+ u_char char_dummy2;
+ u_char cha_b_ctrl;
+ u_char char_dummy3;
+ u_char cha_b_data;
+ };
+# define mac_scc ((*(volatile struct SCC*)MAC_SCC_BAS))
+#endif
+
+/* hardware stuff */
+
+#define MACHW_DECLARE(name) unsigned name : 1
+#define MACHW_SET(name) (mac_hw_present.name = 1)
+#define MACHW_PRESENT(name) (mac_hw_present.name)
+
+struct mac_hw_present {
+ /* video hardware */
+ /* sound hardware */
+ /* disk storage interfaces */
+ MACHW_DECLARE(MAC_SCSI_80); /* Directly mapped NCR5380 */
+ MACHW_DECLARE(MAC_SCSI_96); /* 53c9[46] */
+ MACHW_DECLARE(MAC_SCSI_96_2); /* 2nd 53c9[46] Q900 and Q950 */
+ MACHW_DECLARE(IDE); /* IDE Interface */
+ /* other I/O hardware */
+ MACHW_DECLARE(SCC); /* Serial Communications Contr. */
+ /* DMA */
+ MACHW_DECLARE(SCSI_DMA); /* DMA for the NCR5380 */
+ /* real time clocks */
+ MACHW_DECLARE(RTC_CLK); /* clock chip */
+ /* supporting hardware */
+ MACHW_DECLARE(VIA1); /* Versatile Interface Ad. 1 */
+ MACHW_DECLARE(VIA2); /* Versatile Interface Ad. 2 */
+ MACHW_DECLARE(RBV); /* Versatile Interface Ad. 2+ */
+ /* NUBUS */
+ MACHW_DECLARE(NUBUS); /* NUBUS */
+};
+
+extern struct mac_hw_present mac_hw_present;
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* linux/machw.h */