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//==========================================================================
//
//      spr_defs.h
//
//      Defines OR1K architecture specific special-purpose registers (SPRs)
//
//==========================================================================
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//==========================================================================
//#####DESCRIPTIONBEGIN####
//
// Author(s):    sfurman
// Contributors: Damjan Lambert
// Date:         2003-01-17
// Purpose:      Define OpenRISC architecture special-purpose registers
// Usage:        #include <cyg/hal/hal_arch.h>
//              
//####DESCRIPTIONEND####
//
//==========================================================================
 
/* Definition of special-purpose registers (SPRs) */
 
#ifndef _ASM_SPR_DEFS_H
#define _ASM_SPR_DEFS_H
 
#define MAX_GRPS (32)
#define MAX_SPRS_PER_GRP_BITS (11)
#define MAX_SPRS_PER_GRP (1 << MAX_SPRS_PER_GRP_BITS)
#define MAX_SPRS (0x10000)
 
/* Base addresses for the groups */
#define SPRGROUP_SYS    (0<< MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_DMMU   (1<< MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_IMMU   (2<< MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_DC     (3<< MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_IC     (4<< MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_MAC    (5<< MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_D      (6<< MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_PC     (7<< MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_PM     (8<< MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_PIC    (9<< MAX_SPRS_PER_GRP_BITS)
#define SPRGROUP_TT     (10<< MAX_SPRS_PER_GRP_BITS)
 
/* System control and status group */
#define SPR_VR          (SPRGROUP_SYS + 0)
#define SPR_UPR         (SPRGROUP_SYS + 1)
#define SPR_PC          (SPRGROUP_SYS + 16)  /* CZ 21/06/01 */
#define SPR_SR          (SPRGROUP_SYS + 17)  /* CZ 21/06/01 */
#define SPR_EPCR_BASE   (SPRGROUP_SYS + 32)  /* CZ 21/06/01 */
#define SPR_EPCR_LAST   (SPRGROUP_SYS + 47)  /* CZ 21/06/01 */
#define SPR_EEAR_BASE   (SPRGROUP_SYS + 48)
#define SPR_EEAR_LAST   (SPRGROUP_SYS + 63)
#define SPR_ESR_BASE    (SPRGROUP_SYS + 64)
#define SPR_ESR_LAST    (SPRGROUP_SYS + 79)
 
#if 0
/* Data MMU group */
#define SPR_DMMUCR      (SPRGROUP_DMMU + 0)
#define SPR_DTLBMR_BASE(WAY)    (SPRGROUP_DMMU + 0x200 + (WAY) * 0x200)
#define SPR_DTLBMR_LAST(WAY)    (SPRGROUP_DMMU + 0x2ff + (WAY) * 0x200)
#define SPR_DTLBTR_BASE(WAY)    (SPRGROUP_DMMU + 0x300 + (WAY) * 0x200)
#define SPR_DTLBTR_LAST(WAY)    (SPRGROUP_DMMU + 0x3ff + (WAY) * 0x200)
 
/* Instruction MMU group */
#define SPR_IMMUCR      (SPRGROUP_IMMU + 0)
#define SPR_ITLBMR_BASE(WAY)    (SPRGROUP_IMMU + 0x200 + (WAY) * 0x200)
#define SPR_ITLBMR_LAST(WAY)    (SPRGROUP_IMMU + 0x2ff + (WAY) * 0x200)
#define SPR_ITLBTR_BASE(WAY)    (SPRGROUP_IMMU + 0x300 + (WAY) * 0x200)
#define SPR_ITLBTR_LAST(WAY)    (SPRGROUP_IMMU + 0x3ff + (WAY) * 0x200)
#else
/* Data MMU group */
#define SPR_DMMUCR      (SPRGROUP_DMMU + 0)
#define SPR_DTLBMR_BASE(WAY)    (SPRGROUP_DMMU + 0x200 + (WAY) * 0x100)
#define SPR_DTLBMR_LAST(WAY)    (SPRGROUP_DMMU + 0x27f + (WAY) * 0x100)
#define SPR_DTLBTR_BASE(WAY)    (SPRGROUP_DMMU + 0x280 + (WAY) * 0x100)
#define SPR_DTLBTR_LAST(WAY)    (SPRGROUP_DMMU + 0x2ff + (WAY) * 0x100)
 
/* Instruction MMU group */
#define SPR_IMMUCR      (SPRGROUP_IMMU + 0)
#define SPR_ITLBMR_BASE(WAY)    (SPRGROUP_IMMU + 0x200 + (WAY) * 0x100)
#define SPR_ITLBMR_LAST(WAY)    (SPRGROUP_IMMU + 0x27f + (WAY) * 0x100)
#define SPR_ITLBTR_BASE(WAY)    (SPRGROUP_IMMU + 0x280 + (WAY) * 0x100)
#define SPR_ITLBTR_LAST(WAY)    (SPRGROUP_IMMU + 0x2ff + (WAY) * 0x100)
#endif
 
/* Data cache group */
#define SPR_DCCR        (SPRGROUP_DC + 0)
#define SPR_DCBPR       (SPRGROUP_DC + 1)
#define SPR_DCBFR       (SPRGROUP_DC + 2)
#define SPR_DCBIR       (SPRGROUP_DC + 3)
#define SPR_DCBWR       (SPRGROUP_DC + 4)
#define SPR_DCBLR       (SPRGROUP_DC + 5)
#define SPR_DCR_BASE(WAY)       (SPRGROUP_DC + 0x200 + (WAY) * 0x200)
#define SPR_DCR_LAST(WAY)       (SPRGROUP_DC + 0x3ff + (WAY) * 0x200)
 
/* Instruction cache group */
#define SPR_ICCR        (SPRGROUP_IC + 0)
#define SPR_ICBPR       (SPRGROUP_IC + 1)
#define SPR_ICBIR       (SPRGROUP_IC + 2)
#define SPR_ICBLR       (SPRGROUP_IC + 3)
#define SPR_ICR_BASE(WAY)       (SPRGROUP_IC + 0x200 + (WAY) * 0x200)
#define SPR_ICR_LAST(WAY)       (SPRGROUP_IC + 0x3ff + (WAY) * 0x200)
 
/* MAC group */
#define SPR_MACLO       (SPRGROUP_MAC + 1)
#define SPR_MACHI       (SPRGROUP_MAC + 2)
 
/* Debug group */
#define SPR_DVR(N)      (SPRGROUP_D + (N))
#define SPR_DCR(N)      (SPRGROUP_D + 8 + (N))
#define SPR_DMR1        (SPRGROUP_D + 16)
#define SPR_DMR2        (SPRGROUP_D + 17)
#define SPR_DWCR0       (SPRGROUP_D + 18)
#define SPR_DWCR1       (SPRGROUP_D + 19)
#define SPR_DSR         (SPRGROUP_D + 20)
#define SPR_DRR         (SPRGROUP_D + 21)
#define SPR_DIR         (SPRGROUP_D + 22)
 
/* Performance counters group */
#define SPR_PCCR(N)     (SPRGROUP_PC + (N))
#define SPR_PCMR(N)     (SPRGROUP_PC + 8 + (N))
 
/* Power management group */
#define SPR_PMR (SPRGROUP_PM + 0)
 
/* PIC group */
#define SPR_PICMR (SPRGROUP_PIC + 0)
#define SPR_PICPR (SPRGROUP_PIC + 1)
#define SPR_PICSR (SPRGROUP_PIC + 2)
 
/* Tick Timer group */
#define SPR_TTMR (SPRGROUP_TT + 0)
#define SPR_TTCR (SPRGROUP_TT + 1)
 
/*
 * Bit definitions for the Version Register
 *
 */
#define SPR_VR_VER      0xffff0000  /* Processor version */
#define SPR_VR_REV      0x0000003f  /* Processor revision */
 
/*
 * Bit definitions for the Unit Present Register
 *
 */
#define SPR_UPR_UP      0x00000001  /* UPR present */
#define SPR_UPR_DCP     0x00000002  /* Data cache present */
#define SPR_UPR_ICP     0x00000004  /* Instruction cache present */
#define SPR_UPR_DMP     0x00000008  /* Data MMU present */
#define SPR_UPR_IMP     0x00000010  /* Instruction MMU present */
#define SPR_UPR_OB32P   0x00000020  /* ORBIS32 present */
#define SPR_UPR_OB64P   0x00000040  /* ORBIS64 present */
#define SPR_UPR_OF32P   0x00000080  /* ORFPX32 present */
#define SPR_UPR_OF64P   0x00000100  /* ORFPX64 present */
#define SPR_UPR_OV32P   0x00000200  /* ORVDX32 present */
#define SPR_UPR_OV64P   0x00000400  /* ORVDX64 present */
#define SPR_UPR_DUP     0x00000800  /* Debug unit present */
#define SPR_UPR_PCUP    0x00001000  /* Performance counters unit present */
#define SPR_UPR_PMP     0x00002000  /* Power management present */
#define SPR_UPR_PICP    0x00004000  /* PIC present */
#define SPR_UPR_TTP     0x00008000  /* Tick timer present */
#define SPR_UPR_SRP     0x00010000  /* Shadow registers present */
#define SPR_UPR_RES     0x00fe0000  /* ORVDX32 present */
#define SPR_UPR_CUST    0xff000000  /* Custom units */
 
/*
 * Bit definitions for the Supervision Register
 *
 */
#define SPR_SR_CID      0xf0000000  /* Context ID */
#define SPR_SR_FO       0x00008000  /* Fixed one */
#define SPR_SR_EPH      0x00004000  /* Exception Prefixi High */
#define SPR_SR_DSX      0x00002000  /* Delay Slot Exception */
#define SPR_SR_OVE      0x00001000  /* Overflow flag Exception */
#define SPR_SR_OV       0x00000800  /* Overflow flag */
#define SPR_SR_CY       0x00000400  /* Carry flag */
#define SPR_SR_F        0x00000200  /* Condition Flag */
#define SPR_SR_CE       0x00000100  /* CID Enable */
#define SPR_SR_LEE      0x00000080  /* Little Endian Enable */
#define SPR_SR_IME      0x00000040  /* Instruction MMU Enable */
#define SPR_SR_DME      0x00000020  /* Data MMU Enable */
#define SPR_SR_ICE      0x00000010  /* Instruction Cache Enable */
#define SPR_SR_DCE      0x00000008  /* Data Cache Enable */
#define SPR_SR_IEE      0x00000004  /* Interrupt Exception Enable */
#define SPR_SR_TEE      0x00000002  /* Tick timer Exception Enable */
#define SPR_SR_SM       0x00000001  /* Supervisor Mode */
#define SPR_SR_FO_BIT    15
#define SPR_SR_EPH_BIT   14
#define SPR_SR_DSX_BIT   13
#define SPR_SR_OVE_BIT   12
#define SPR_SR_OV_BIT    11
#define SPR_SR_CY_BIT    10
#define SPR_SR_F_BIT     9
#define SPR_SR_CE_BIT    8
#define SPR_SR_LEE_BIT   7
#define SPR_SR_IME_BIT   6
#define SPR_SR_DME_BIT   5
#define SPR_SR_ICE_BIT   4
#define SPR_SR_DCE_BIT   3
#define SPR_SR_IEE_BIT   2
#define SPR_SR_TEE_BIT   1
#define SPR_SR_SM_BIT    0
 
 
/*
 * Bit definitions for the Data MMU Control Register
 *
 */
#define SPR_DMMUCR_P2S  0x0000003e  /* Level 2 Page Size */
#define SPR_DMMUCR_P1S  0x000007c0  /* Level 1 Page Size */
#define SPR_DMMUCR_VADDR_WIDTH  0x0000f800  /* Virtual ADDR Width */
#define SPR_DMMUCR_PADDR_WIDTH  0x000f0000  /* Physical ADDR Width */
 
/*
 * Bit definitions for the Instruction MMU Control Register
 *
 */
#define SPR_IMMUCR_P2S  0x0000003e  /* Level 2 Page Size */
#define SPR_IMMUCR_P1S  0x000007c0  /* Level 1 Page Size */
#define SPR_IMMUCR_VADDR_WIDTH  0x0000f800  /* Virtual ADDR Width */
#define SPR_IMMUCR_PADDR_WIDTH  0x000f0000  /* Physical ADDR Width */
 
/*
 * Bit definitions for the Data TLB Match Register
 *
 */
#define SPR_DTLBMR_V    0x00000001  /* Valid */
#define SPR_DTLBMR_PL1  0x00000002  /* Page Level 1 (if 0 then PL2) */
#define SPR_DTLBMR_CID  0x0000003c  /* Context ID */
#define SPR_DTLBMR_LRU  0x000000c0  /* Least Recently Used */
#define SPR_DTLBMR_VPN  0xfffff000  /* Virtual Page Number */
 
/*
 * Bit definitions for the Data TLB Translate Register
 *
 */
#define SPR_DTLBTR_CC   0x00000001  /* Cache Coherency */
#define SPR_DTLBTR_CI   0x00000002  /* Cache Inhibit */
#define SPR_DTLBTR_WBC  0x00000004  /* Write-Back Cache */
#define SPR_DTLBTR_WOM  0x00000008  /* Weakly-Ordered Memory */
#define SPR_DTLBTR_A    0x00000010  /* Accessed */
#define SPR_DTLBTR_D    0x00000020  /* Dirty */
#define SPR_DTLBTR_URE  0x00000040  /* User Read Enable */
#define SPR_DTLBTR_UWE  0x00000080  /* User Write Enable */
#define SPR_DTLBTR_SRE  0x00000100  /* Supervisor Read Enable */
#define SPR_DTLBTR_SWE  0x00000200  /* Supervisor Write Enable */
#define SPR_DTLBTR_PPN  0xfffff000  /* Physical Page Number */
#define DTLBTR_NO_LIMIT ( SPR_DTLBTR_URE |  \
                          SPR_DTLBTR_UWE |  \
                          SPR_DTLBTR_SRE |  \
                          SPR_DTLBTR_SWE )
 
/*
 * Bit definitions for the Instruction TLB Match Register
 *
 */
#define SPR_ITLBMR_V    0x00000001  /* Valid */
#define SPR_ITLBMR_PL1  0x00000002  /* Page Level 1 (if 0 then PL2) */
#define SPR_ITLBMR_CID  0x0000003c  /* Context ID */
#define SPR_ITLBMR_LRU  0x000000c0  /* Least Recently Used */
#define SPR_ITLBMR_VPN  0xfffff000  /* Virtual Page Number */
 
/*
 * Bit definitions for the Instruction TLB Translate Register
 *
 */
#define SPR_ITLBTR_CC   0x00000001  /* Cache Coherency */
#define SPR_ITLBTR_CI   0x00000002  /* Cache Inhibit */
#define SPR_ITLBTR_WBC  0x00000004  /* Write-Back Cache */
#define SPR_ITLBTR_WOM  0x00000008  /* Weakly-Ordered Memory */
#define SPR_ITLBTR_A    0x00000010  /* Accessed */
#define SPR_ITLBTR_D    0x00000020  /* Dirty */
#define SPR_ITLBTR_SXE  0x00000040  /* User Read Enable */
#define SPR_ITLBTR_UXE  0x00000080  /* User Write Enable */
#define SPR_ITLBTR_PPN  0xfffff000  /* Physical Page Number */
#define ITLBTR_NO_LIMIT (SPR_ITLBTR_SXE | SPR_ITLBTR_UXE)
 
/*
 * Bit definitions for Data Cache Control register
 *
 */
#define SPR_DCCR_EW     0x000000ff  /* Enable ways */
 
/*
 * Bit definitions for Insn Cache Control register
 *
 */
#define SPR_ICCR_EW     0x000000ff  /* Enable ways */
 
/*
 * Bit definitions for Debug Control registers
 *
 */
#define SPR_DCR_DP      0x00000001  /* DVR/DCR present */
#define SPR_DCR_CC      0x0000000e  /* Compare condition */
#define SPR_DCR_SC      0x00000010  /* Signed compare */
#define SPR_DCR_CT      0x000000e0  /* Compare to */
 
/*
 * Bit definitions for Debug Mode 1 register
 *
 */
#define SPR_DMR1_CW0    0x00000003  /* Chain watchpoint 0 */
#define SPR_DMR1_CW1    0x0000000c  /* Chain watchpoint 1 */
#define SPR_DMR1_CW2    0x00000030  /* Chain watchpoint 2 */
#define SPR_DMR1_CW3    0x000000c0  /* Chain watchpoint 3 */
#define SPR_DMR1_CW4    0x00000300  /* Chain watchpoint 4 */
#define SPR_DMR1_CW5    0x00000c00  /* Chain watchpoint 5 */
#define SPR_DMR1_CW6    0x00003000  /* Chain watchpoint 6 */
#define SPR_DMR1_CW7    0x0000c000  /* Chain watchpoint 7 */
#define SPR_DMR1_CW8    0x00030000  /* Chain watchpoint 8 */
#define SPR_DMR1_CW9    0x000c0000  /* Chain watchpoint 9 */
#define SPR_DMR1_CW10   0x00300000  /* Chain watchpoint 10 */
#define SPR_DMR1_ST     0x00400000  /* Single-step trace*/
#define SPR_DMR1_BT     0x00800000  /* Branch trace */
#define SPR_DMR1_DXFW   0x01000000  /* Disable external force watchpoint */
 
/*
 * Bit definitions for Debug Mode 2 register
 *
 */
#define SPR_DMR2_WCE0   0x00000001  /* Watchpoint counter 0 enable */
#define SPR_DMR2_WCE1   0x00000002  /* Watchpoint counter 0 enable */
#define SPR_DMR2_AWTC   0x00001ffc  /* Assign watchpoints to counters */
#define SPR_DMR2_WGB    0x00ffe000  /* Watchpoints generating breakpoint */
 
/*
 * Bit definitions for Debug watchpoint counter registers
 *
 */
#define SPR_DWCR_COUNT  0x0000ffff  /* Count */
#define SPR_DWCR_MATCH  0xffff0000  /* Match */
 
/*
 * Bit definitions for Debug stop register
 *
 */
#define SPR_DSR_RSTE    0x00000001  /* Reset exception */
#define SPR_DSR_BUSEE   0x00000002  /* Bus error exception */
#define SPR_DSR_DPFE    0x00000004  /* Data Page Fault exception */
#define SPR_DSR_IPFE    0x00000008  /* Insn Page Fault exception */
#define SPR_DSR_LPINTE  0x00000010  /* Low priority interrupt exception */
#define SPR_DSR_AE      0x00000020  /* Alignment exception */
#define SPR_DSR_IIE     0x00000040  /* Illegal Instruction exception */
#define SPR_DSR_HPINTE  0x00000080  /* High priority interrupt exception */
#define SPR_DSR_DME     0x00000100  /* DTLB miss exception */
#define SPR_DSR_IME     0x00000200  /* ITLB miss exception */
#define SPR_DSR_RE      0x00000400  /* Range exception */
#define SPR_DSR_SCE     0x00000800  /* System call exception */
#define SPR_DSR_BE      0x00001000  /* Breakpoint exception */
 
/*
 * Bit definitions for Debug reason register
 *
 */
#define SPR_DRR_RSTE    0x00000001  /* Reset exception */
#define SPR_DRR_BUSEE   0x00000002  /* Bus error exception */
#define SPR_DRR_DPFE    0x00000004  /* Data Page Fault exception */
#define SPR_DRR_IPFE    0x00000008  /* Insn Page Fault exception */
#define SPR_DRR_LPINTE  0x00000010  /* Low priority interrupt exception */
#define SPR_DRR_AE      0x00000020  /* Alignment exception */
#define SPR_DRR_IIE     0x00000040  /* Illegal Instruction exception */
#define SPR_DRR_HPINTE  0x00000080  /* High priority interrupt exception */
#define SPR_DRR_DME     0x00000100  /* DTLB miss exception */
#define SPR_DRR_IME     0x00000200  /* ITLB miss exception */
#define SPR_DRR_RE      0x00000400  /* Range exception */
#define SPR_DRR_SCE     0x00000800  /* System call exception */
#define SPR_DRR_BE      0x00001000  /* Breakpoint exception */
 
/*
 * Bit definitions for Performance counters mode registers
 *
 */
#define SPR_PCMR_CP     0x00000001  /* Counter present */
#define SPR_PCMR_UMRA   0x00000002  /* User mode read access */
#define SPR_PCMR_CISM   0x00000004  /* Count in supervisor mode */
#define SPR_PCMR_CIUM   0x00000008  /* Count in user mode */
#define SPR_PCMR_LA     0x00000010  /* Load access event */
#define SPR_PCMR_SA     0x00000020  /* Store access event */
#define SPR_PCMR_IF     0x00000040  /* Instruction fetch event*/
#define SPR_PCMR_DCM    0x00000080  /* Data cache miss event */
#define SPR_PCMR_ICM    0x00000100  /* Insn cache miss event */
#define SPR_PCMR_IFS    0x00000200  /* Insn fetch stall event */
#define SPR_PCMR_LSUS   0x00000400  /* LSU stall event */
#define SPR_PCMR_BS     0x00000800  /* Branch stall event */
#define SPR_PCMR_DTLBM  0x00001000  /* DTLB miss event */
#define SPR_PCMR_ITLBM  0x00002000  /* ITLB miss event */
#define SPR_PCMR_DDS    0x00004000  /* Data dependency stall event */
#define SPR_PCMR_WPE    0x03ff8000  /* Watchpoint events */
 
/* 
 * Bit definitions for the Power management register
 *
 */
#define SPR_PMR_SDF     0x00000001  /* Slow down factor */
#define SPR_PMR_DME     0x00000002  /* Doze mode enable */
#define SPR_PMR_SME     0x00000004  /* Sleep mode enable */
#define SPR_PMR_DCGE    0x00000008  /* Dynamic clock gating enable */
#define SPR_PMR_SUME    0x00000010  /* Suspend mode enable */
 
/*
 * Bit definitions for PICMR
 *
 */
#define SPR_PICMR_IUM   0xfffffffc  /* Interrupt unmask */
 
/*
 * Bit definitions for PICPR
 *
 */
#define SPR_PICPR_IPRIO 0xfffffffc  /* Interrupt priority */
 
/*
 * Bit definitions for PICSR
 *
 */
#define SPR_PICSR_IS    0xffffffff  /* Interrupt status */
 
/*
 * Bit definitions for Tick Timer Control Register
 *
 */
#define SPR_TTCR_PERIOD 0x0fffffff  /* Time Period */
#define SPR_TTMR_PERIOD SPR_TTCR_PERIOD
#define SPR_TTMR_IP 0x10000000  /* Interrupt Pending */
#define SPR_TTMR_IE 0x20000000  /* Interrupt Enable */
#define SPR_TTMR_RT 0x40000000  /* Restart tick */
#define SPR_TTMR_SR     0x80000000  /* Single run */
#define SPR_TTMR_CR     0xc0000000  /* Continuous run */
#define SPR_TTMR_M      0xc0000000  /* Tick mode */
 
#endif
 
// EOF spr_defs.h