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Diffstat (limited to 'include/asm-m68k/machw.h')
| -rw-r--r-- | include/asm-m68k/machw.h | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/include/asm-m68k/machw.h b/include/asm-m68k/machw.h new file mode 100644 index 000000000000..d2e0e25d5c90 --- /dev/null +++ b/include/asm-m68k/machw.h @@ -0,0 +1,101 @@ +/* +** 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 */ |