174 lines
5.2 KiB
C
174 lines
5.2 KiB
C
|
/*
|
||
|
|
* include/asm-mips/dec/prom.h
|
||
|
|
*
|
||
|
|
* DECstation PROM interface.
|
||
|
|
*
|
||
|
|
* Copyright (C) 2002 Maciej W. Rozycki
|
||
|
|
*
|
||
|
|
* This program is free software; you can redistribute it and/or
|
||
|
|
* modify it under the terms of the GNU General Public License
|
||
|
|
* as published by the Free Software Foundation; either version
|
||
|
|
* 2 of the License, or (at your option) any later version.
|
||
|
|
*
|
||
|
|
* Based on arch/mips/dec/prom/prom.h by the Anonymous.
|
||
|
|
*/
|
||
|
|
#ifndef _ASM_DEC_PROM_H
|
||
|
|
#define _ASM_DEC_PROM_H
|
||
|
|
|
||
|
|
#include <linux/config.h>
|
||
|
|
#include <linux/types.h>
|
||
|
|
|
||
|
|
#include <asm/addrspace.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* PMAX/3MAX PROM entry points for DS2100/3100's and DS5000/2xx's.
|
||
|
|
* Many of these will work for MIPSen as well!
|
||
|
|
*/
|
||
|
|
#define VEC_RESET (u64 *)KSEG1ADDR(0x1fc00000)
|
||
|
|
/* Prom base address */
|
||
|
|
|
||
|
|
#define PMAX_PROM_ENTRY(x) (VEC_RESET + (x)) /* Prom jump table */
|
||
|
|
|
||
|
|
#define PMAX_PROM_HALT PMAX_PROM_ENTRY(2) /* valid on MIPSen */
|
||
|
|
#define PMAX_PROM_AUTOBOOT PMAX_PROM_ENTRY(5) /* valid on MIPSen */
|
||
|
|
#define PMAX_PROM_OPEN PMAX_PROM_ENTRY(6)
|
||
|
|
#define PMAX_PROM_READ PMAX_PROM_ENTRY(7)
|
||
|
|
#define PMAX_PROM_CLOSE PMAX_PROM_ENTRY(10)
|
||
|
|
#define PMAX_PROM_LSEEK PMAX_PROM_ENTRY(11)
|
||
|
|
#define PMAX_PROM_GETCHAR PMAX_PROM_ENTRY(12)
|
||
|
|
#define PMAX_PROM_PUTCHAR PMAX_PROM_ENTRY(13) /* 12 on MIPSen */
|
||
|
|
#define PMAX_PROM_GETS PMAX_PROM_ENTRY(15)
|
||
|
|
#define PMAX_PROM_PRINTF PMAX_PROM_ENTRY(17)
|
||
|
|
#define PMAX_PROM_GETENV PMAX_PROM_ENTRY(33) /* valid on MIPSen */
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Magic number indicating REX PROM available on DECstation. Found in
|
||
|
|
* register a2 on transfer of control to program from PROM.
|
||
|
|
*/
|
||
|
|
#define REX_PROM_MAGIC 0x30464354
|
||
|
|
|
||
|
|
#ifdef CONFIG_MIPS64
|
||
|
|
|
||
|
|
#define prom_is_rex(magic) 1 /* KN04 and KN05 are REX PROMs. */
|
||
|
|
|
||
|
|
#else /* !CONFIG_MIPS64 */
|
||
|
|
|
||
|
|
#define prom_is_rex(magic) ((magic) == REX_PROM_MAGIC)
|
||
|
|
|
||
|
|
#endif /* !CONFIG_MIPS64 */
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 3MIN/MAXINE PROM entry points for DS5000/1xx's, DS5000/xx's and
|
||
|
|
* DS5000/2x0.
|
||
|
|
*/
|
||
|
|
#define REX_PROM_GETBITMAP 0x84/4 /* get mem bitmap */
|
||
|
|
#define REX_PROM_GETCHAR 0x24/4 /* getch() */
|
||
|
|
#define REX_PROM_GETENV 0x64/4 /* get env. variable */
|
||
|
|
#define REX_PROM_GETSYSID 0x80/4 /* get system id */
|
||
|
|
#define REX_PROM_GETTCINFO 0xa4/4
|
||
|
|
#define REX_PROM_PRINTF 0x30/4 /* printf() */
|
||
|
|
#define REX_PROM_SLOTADDR 0x6c/4 /* slotaddr */
|
||
|
|
#define REX_PROM_BOOTINIT 0x54/4 /* open() */
|
||
|
|
#define REX_PROM_BOOTREAD 0x58/4 /* read() */
|
||
|
|
#define REX_PROM_CLEARCACHE 0x7c/4
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Used by rex_getbitmap().
|
||
|
|
*/
|
||
|
|
typedef struct {
|
||
|
|
int pagesize;
|
||
|
|
unsigned char bitmap[0];
|
||
|
|
} memmap;
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Function pointers as read from a PROM's callback vector.
|
||
|
|
*/
|
||
|
|
extern int (*__rex_bootinit)(void);
|
||
|
|
extern int (*__rex_bootread)(void);
|
||
|
|
extern int (*__rex_getbitmap)(memmap *);
|
||
|
|
extern unsigned long *(*__rex_slot_address)(int);
|
||
|
|
extern void *(*__rex_gettcinfo)(void);
|
||
|
|
extern int (*__rex_getsysid)(void);
|
||
|
|
extern void (*__rex_clear_cache)(void);
|
||
|
|
|
||
|
|
extern int (*__prom_getchar)(void);
|
||
|
|
extern char *(*__prom_getenv)(char *);
|
||
|
|
extern int (*__prom_printf)(char *, ...);
|
||
|
|
|
||
|
|
extern int (*__pmax_open)(char*, int);
|
||
|
|
extern int (*__pmax_lseek)(int, long, int);
|
||
|
|
extern int (*__pmax_read)(int, void *, int);
|
||
|
|
extern int (*__pmax_close)(int);
|
||
|
|
|
||
|
|
|
||
|
|
#ifdef CONFIG_MIPS64
|
||
|
|
|
||
|
|
/*
|
||
|
|
* On MIPS64 we have to call PROM functions via a helper
|
||
|
|
* dispatcher to accomodate ABI incompatibilities.
|
||
|
|
*/
|
||
|
|
#define __DEC_PROM_O32 __attribute__((alias("call_o32")))
|
||
|
|
|
||
|
|
int _rex_bootinit(int (*)(void)) __DEC_PROM_O32;
|
||
|
|
int _rex_bootread(int (*)(void)) __DEC_PROM_O32;
|
||
|
|
int _rex_getbitmap(int (*)(memmap *), memmap *) __DEC_PROM_O32;
|
||
|
|
unsigned long *_rex_slot_address(unsigned long *(*)(int), int) __DEC_PROM_O32;
|
||
|
|
void *_rex_gettcinfo(void *(*)(void)) __DEC_PROM_O32;
|
||
|
|
int _rex_getsysid(int (*)(void)) __DEC_PROM_O32;
|
||
|
|
void _rex_clear_cache(void (*)(void)) __DEC_PROM_O32;
|
||
|
|
|
||
|
|
int _prom_getchar(int (*)(void)) __DEC_PROM_O32;
|
||
|
|
char *_prom_getenv(char *(*)(char *), char *) __DEC_PROM_O32;
|
||
|
|
int _prom_printf(int (*)(char *, ...), char *, ...) __DEC_PROM_O32;
|
||
|
|
|
||
|
|
|
||
|
|
#define rex_bootinit() _rex_bootinit(__rex_bootinit)
|
||
|
|
#define rex_bootread() _rex_bootread(__rex_bootread)
|
||
|
|
#define rex_getbitmap(x) _rex_getbitmap(__rex_getbitmap, x)
|
||
|
|
#define rex_slot_address(x) _rex_slot_address(__rex_slot_address, x)
|
||
|
|
#define rex_gettcinfo() _rex_gettcinfo(__rex_gettcinfo)
|
||
|
|
#define rex_getsysid() _rex_getsysid(__rex_getsysid)
|
||
|
|
#define rex_clear_cache() _rex_clear_cache(__rex_clear_cache)
|
||
|
|
|
||
|
|
#define prom_getchar() _prom_getchar(__prom_getchar)
|
||
|
|
#define prom_getenv(x) _prom_getenv(__prom_getenv, x)
|
||
|
|
#define prom_printf(x...) _prom_printf(__prom_printf, x)
|
||
|
|
|
||
|
|
#else /* !CONFIG_MIPS64 */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* On plain MIPS we just call PROM functions directly.
|
||
|
|
*/
|
||
|
|
#define rex_bootinit __rex_bootinit
|
||
|
|
#define rex_bootread __rex_bootread
|
||
|
|
#define rex_getbitmap __rex_getbitmap
|
||
|
|
#define rex_slot_address __rex_slot_address
|
||
|
|
#define rex_gettcinfo __rex_gettcinfo
|
||
|
|
#define rex_getsysid __rex_getsysid
|
||
|
|
#define rex_clear_cache __rex_clear_cache
|
||
|
|
|
||
|
|
#define prom_getchar __prom_getchar
|
||
|
|
#define prom_getenv __prom_getenv
|
||
|
|
#define prom_printf __prom_printf
|
||
|
|
|
||
|
|
#define pmax_open __pmax_open
|
||
|
|
#define pmax_lseek __pmax_lseek
|
||
|
|
#define pmax_read __pmax_read
|
||
|
|
#define pmax_close __pmax_close
|
||
|
|
|
||
|
|
#endif /* !CONFIG_MIPS64 */
|
||
|
|
|
||
|
|
|
||
|
|
extern void prom_meminit(u32);
|
||
|
|
extern void prom_identify_arch(u32);
|
||
|
|
extern void prom_init_cmdline(s32, s32 *, u32);
|
||
|
|
|
||
|
|
extern void register_prom_console(void);
|
||
|
|
extern void unregister_prom_console(void);
|
||
|
|
|
||
|
|
#endif /* _ASM_DEC_PROM_H */
|