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Diffstat (limited to 'arch/m68k/include/asm/machw.h')
| -rw-r--r-- | arch/m68k/include/asm/machw.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/machw.h b/arch/m68k/include/asm/machw.h new file mode 100644 index 000000000000..2b4de0c2ce4a --- /dev/null +++ b/arch/m68k/include/asm/machw.h @@ -0,0 +1,49 @@ +/* +** 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 +/* +** 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 + +#endif /* __ASSEMBLY__ */ + +#endif /* linux/machw.h */ |