3115624eda
Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David S. Miller <davem@davemloft.net>
103 lines
3.1 KiB
C
103 lines
3.1 KiB
C
/* $Id: mbus.h,v 1.9 1997/06/24 15:48:12 jj Exp $
|
|
* mbus.h: Various defines for MBUS modules.
|
|
*
|
|
* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
|
|
*/
|
|
|
|
#ifndef _SPARC_MBUS_H
|
|
#define _SPARC_MBUS_H
|
|
|
|
#include <asm/ross.h> /* HyperSparc stuff */
|
|
#include <asm/cypress.h> /* Cypress Chips */
|
|
#include <asm/viking.h> /* Ugh, bug city... */
|
|
|
|
enum mbus_module {
|
|
HyperSparc = 0,
|
|
Cypress = 1,
|
|
Cypress_vE = 2,
|
|
Cypress_vD = 3,
|
|
Swift_ok = 4,
|
|
Swift_bad_c = 5,
|
|
Swift_lots_o_bugs = 6,
|
|
Tsunami = 7,
|
|
Viking_12 = 8,
|
|
Viking_2x = 9,
|
|
Viking_30 = 10,
|
|
Viking_35 = 11,
|
|
Viking_new = 12,
|
|
TurboSparc = 13,
|
|
SRMMU_INVAL_MOD = 14,
|
|
};
|
|
|
|
extern enum mbus_module srmmu_modtype;
|
|
extern unsigned int viking_rev, swift_rev, cypress_rev;
|
|
|
|
/* HW Mbus module bugs we have to deal with */
|
|
#define HWBUG_COPYBACK_BROKEN 0x00000001
|
|
#define HWBUG_ASIFLUSH_BROKEN 0x00000002
|
|
#define HWBUG_VACFLUSH_BITROT 0x00000004
|
|
#define HWBUG_KERN_ACCBROKEN 0x00000008
|
|
#define HWBUG_KERN_CBITBROKEN 0x00000010
|
|
#define HWBUG_MODIFIED_BITROT 0x00000020
|
|
#define HWBUG_PC_BADFAULT_ADDR 0x00000040
|
|
#define HWBUG_SUPERSCALAR_BAD 0x00000080
|
|
#define HWBUG_PACINIT_BITROT 0x00000100
|
|
|
|
extern unsigned int hwbug_bitmask;
|
|
|
|
/* First the module type values. To find out which you have, just load
|
|
* the mmu control register from ASI_M_MMUREG alternate address space and
|
|
* shift the value right 28 bits.
|
|
*/
|
|
/* IMPL field means the company which produced the chip. */
|
|
#define MBUS_VIKING 0x4 /* bleech, Texas Instruments Module */
|
|
#define MBUS_LSI 0x3 /* LSI Logics */
|
|
#define MBUS_ROSS 0x1 /* Ross is nice */
|
|
#define MBUS_FMI 0x0 /* Fujitsu Microelectronics/Swift */
|
|
|
|
/* Ross Module versions */
|
|
#define ROSS_604_REV_CDE 0x0 /* revisions c, d, and e */
|
|
#define ROSS_604_REV_F 0x1 /* revision f */
|
|
#define ROSS_605 0xf /* revision a, a.1, and a.2 */
|
|
#define ROSS_605_REV_B 0xe /* revision b */
|
|
|
|
/* TI Viking Module versions */
|
|
#define VIKING_REV_12 0x1 /* Version 1.2 or SPARCclassic's CPU */
|
|
#define VIKING_REV_2 0x2 /* Version 2.1, 2.2, 2.3, and 2.4 */
|
|
#define VIKING_REV_30 0x3 /* Version 3.0 */
|
|
#define VIKING_REV_35 0x4 /* Version 3.5 */
|
|
|
|
/* LSI Logics. */
|
|
#define LSI_L64815 0x0
|
|
|
|
/* Fujitsu */
|
|
#define FMI_AURORA 0x4 /* MB8690x, a Swift module... */
|
|
#define FMI_TURBO 0x5 /* MB86907, a TurboSparc module... */
|
|
|
|
/* For multiprocessor support we need to be able to obtain the CPU id and
|
|
* the MBUS Module id.
|
|
*/
|
|
|
|
/* The CPU ID is encoded in the trap base register, 20 bits to the left of
|
|
* bit zero, with 2 bits being significant.
|
|
*/
|
|
#define TBR_ID_SHIFT 20
|
|
|
|
static inline int get_cpuid(void)
|
|
{
|
|
register int retval;
|
|
__asm__ __volatile__("rd %%tbr, %0\n\t"
|
|
"srl %0, %1, %0\n\t" :
|
|
"=r" (retval) :
|
|
"i" (TBR_ID_SHIFT));
|
|
return (retval & 3);
|
|
}
|
|
|
|
static inline int get_modid(void)
|
|
{
|
|
return (get_cpuid() | 0x8);
|
|
}
|
|
|
|
|
|
#endif /* !(_SPARC_MBUS_H) */
|