1/* $Id: cypress.h,v 1.1.1.1 2008/10/15 03:29:17 james26_jang Exp $ 2 * cypress.h: Cypress module specific definitions and defines. 3 * 4 * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu) 5 */ 6 7#ifndef _SPARC_CYPRESS_H 8#define _SPARC_CYPRESS_H 9 10/* Cypress chips have %psr 'impl' of '0001' and 'vers' of '0001'. */ 11 12/* The MMU control register fields on the Sparc Cypress 604/605 MMU's. 13 * 14 * --------------------------------------------------------------- 15 * |implvers| MCA | MCM |MV| MID |BM| C|RSV|MR|CM|CL|CE|RSV|NF|ME| 16 * --------------------------------------------------------------- 17 * 31 24 23-22 21-20 19 18-15 14 13 12 11 10 9 8 7-2 1 0 18 * 19 * MCA: MultiChip Access -- Used for configuration of multiple 20 * CY7C604/605 cache units. 21 * MCM: MultiChip Mask -- Again, for multiple cache unit config. 22 * MV: MultiChip Valid -- Indicates MCM and MCA have valid settings. 23 * MID: ModuleID -- Unique processor ID for MBus transactions. (605 only) 24 * BM: Boot Mode -- 0 = not in boot mode, 1 = in boot mode 25 * C: Cacheable -- Indicates whether accesses are cacheable while 26 * the MMU is off. 0=no 1=yes 27 * MR: MemoryReflection -- Indicates whether the bus attached to the 28 * MBus supports memory reflection. 0=no 1=yes (605 only) 29 * CM: CacheMode -- Indicates whether the cache is operating in write 30 * through or copy-back mode. 0=write-through 1=copy-back 31 * CL: CacheLock -- Indicates if the entire cache is locked or not. 32 * 0=not-locked 1=locked (604 only) 33 * CE: CacheEnable -- Is the virtual cache on? 0=no 1=yes 34 * NF: NoFault -- Do faults generate traps? 0=yes 1=no 35 * ME: MmuEnable -- Is the MMU doing translations? 0=no 1=yes 36 */ 37 38#define CYPRESS_MCA 0x00c00000 39#define CYPRESS_MCM 0x00300000 40#define CYPRESS_MVALID 0x00080000 41#define CYPRESS_MIDMASK 0x00078000 /* Only on 605 */ 42#define CYPRESS_BMODE 0x00004000 43#define CYPRESS_ACENABLE 0x00002000 44#define CYPRESS_MRFLCT 0x00000800 /* Only on 605 */ 45#define CYPRESS_CMODE 0x00000400 46#define CYPRESS_CLOCK 0x00000200 /* Only on 604 */ 47#define CYPRESS_CENABLE 0x00000100 48#define CYPRESS_NFAULT 0x00000002 49#define CYPRESS_MENABLE 0x00000001 50 51extern __inline__ void cypress_flush_page(unsigned long page) 52{ 53 __asm__ __volatile__("sta %%g0, [%0] %1\n\t" : : 54 "r" (page), "i" (ASI_M_FLUSH_PAGE)); 55} 56 57extern __inline__ void cypress_flush_segment(unsigned long addr) 58{ 59 __asm__ __volatile__("sta %%g0, [%0] %1\n\t" : : 60 "r" (addr), "i" (ASI_M_FLUSH_SEG)); 61} 62 63extern __inline__ void cypress_flush_region(unsigned long addr) 64{ 65 __asm__ __volatile__("sta %%g0, [%0] %1\n\t" : : 66 "r" (addr), "i" (ASI_M_FLUSH_REGION)); 67} 68 69extern __inline__ void cypress_flush_context(void) 70{ 71 __asm__ __volatile__("sta %%g0, [%%g0] %0\n\t" : : 72 "i" (ASI_M_FLUSH_CTX)); 73} 74 75 76#endif /* !(_SPARC_CYPRESS_H) */ 77