50 lines
958 B
C
50 lines
958 B
C
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/*
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** linux/machw.h -- This header defines some macros and pointers for
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** the various Macintosh custom hardware registers.
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**
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** Copyright 1997 by Michael Schmitz
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**
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** This file is subject to the terms and conditions of the GNU General Public
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** License. See the file COPYING in the main directory of this archive
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** for more details.
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**
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*/
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#ifndef _ASM_MACHW_H_
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#define _ASM_MACHW_H_
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/*
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* head.S maps the videomem to VIDEOMEMBASE
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*/
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#define VIDEOMEMBASE 0xf0000000
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#define VIDEOMEMSIZE (4096*1024)
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#define VIDEOMEMMASK (-4096*1024)
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#ifndef __ASSEMBLY__
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#include <linux/types.h>
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#if 0
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/*
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** SCC Z8530
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*/
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#define MAC_SCC_BAS (0x50F04000)
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struct MAC_SCC
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{
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u_char cha_a_ctrl;
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u_char char_dummy1;
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u_char cha_a_data;
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u_char char_dummy2;
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u_char cha_b_ctrl;
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u_char char_dummy3;
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u_char cha_b_data;
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};
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# define mac_scc ((*(volatile struct SCC*)MAC_SCC_BAS))
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* linux/machw.h */
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