1/* $NetBSD: dwlpxreg.h,v 1.10 2006/05/17 21:32:59 drochner Exp $ */ 2 3/* 4 * Copyright (c) 1997 by Matthew Jacob 5 * NASA AMES Research Center. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice immediately at the beginning of the file, without modification, 13 * this list of conditions, and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR 24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 */ 32 33/* 34 * Taken from combinations of: 35 * 36 * ``DWLPA and DWLPB PCI Adapter Technical Manual, 37 * Order Number: EK-DWLPX-TM.A01'' 38 * 39 * and 40 * 41 * ``AlphaServer 8200/8400 System Technical Manual, 42 * Order Number EK-T8030-TM. A01'' 43 */ 44 45#define REGVAL(r) (*(volatile int32_t *)ALPHA_PHYS_TO_K0SEG(r)) 46 47/* 48 * There are (potentially) 4 I/O hoses, and there are three 49 * (electrically distinct) PCI busses per DWLPX (which appear 50 * as one logical PCI bus). 51 * 52 * A CPU to PCI Address Mapping looks (roughly) like this: 53 * 54 * 39 38........36 35.34 33.....32 31....................5 4.........3 2...0 55 * -------------------------------------------------------------------------- 56 * |1| I/O NodeID |Hose#|PCI Space|Byte Aligned I/O <26:0>|Byte Length|0 0 0| 57 * -------------------------------------------------------------------------- 58 * 59 * I/O Node is the TLSB Node ID minus 4. Don't ask. 60 */ 61 62#define NHPC 3 63 64/* 65 * Address Space Cookies 66 * 67 * (lacking I/O Node ID and Hose Numbers) 68 */ 69 70#define DWLPX_PCI_DENSE 0x000000000UL 71#define DWLPX_PCI_SPARSE 0x100000000UL 72#define DWLPX_PCI_IOSPACE 0x200000000UL 73#define DWLPX_PCI_CONF 0x300000000UL 74 75/* 76 * PCIA Interface Adapter Register Addresses (Offsets from Node Address) 77 * 78 * 79 * Addresses are for Hose #0, PCI bus #0. Macros below will offset 80 * per bus. I/O Hose and TLSB Node I/D offsets must be added separately. 81 */ 82 83#define _PCIA_CTL 0x380000000UL /* PCI 0 Bus Control */ 84#define _PCIA_MRETRY 0x380000080UL /* PCI 0 Master Retry Limit */ 85#define _PCIA_GPR 0x380000100UL /* PCI 0 General Purpose */ 86#define _PCIA_ERR 0x380000180UL /* PCI 0 Error Summary */ 87#define _PCIA_FADR 0x380000200UL /* PCI 0 Failing Address */ 88#define _PCIA_IMASK 0x380000280UL /* PCI 0 Interrupt Mask */ 89#define _PCIA_DIAG 0x380000300UL /* PCI 0 Diagnostic */ 90#define _PCIA_IPEND 0x380000380UL /* PCI 0 Interrupt Pending */ 91#define _PCIA_IPROG 0x380000400UL /* PCI 0 Interrupt in Progress */ 92#define _PCIA_WMASK_A 0x380000480UL /* PCI 0 Window Mask A */ 93#define _PCIA_WBASE_A 0x380000500UL /* PCI 0 Window Base A */ 94#define _PCIA_TBASE_A 0x380000580UL /* PCI 0 Window Translated Base A */ 95#define _PCIA_WMASK_B 0x380000600UL /* PCI 0 Window Mask B */ 96#define _PCIA_WBASE_B 0x380000680UL /* PCI 0 Window Base B */ 97#define _PCIA_TBASE_B 0x380000700UL /* PCI 0 Window Translated Base B */ 98#define _PCIA_WMASK_C 0x380000780UL /* PCI 0 Window Mask C */ 99#define _PCIA_WBASE_C 0x380000800UL /* PCI 0 Window Base C */ 100#define _PCIA_TBASE_C 0x380000880UL /* PCI 0 Window Translated Base C */ 101#define _PCIA_ERRVEC 0x380000900UL /* PCI 0 Error Interrupt Vector */ 102#define _PCIA_DEVVEC 0x380001000UL /* PCI 0 Device Interrupt Vector */ 103 104 105#define PCIA_CTL(hpc) (_PCIA_CTL + (0x200000 * (hpc))) 106#define PCIA_MRETRY(hpc) (_PCIA_MRETRY + (0x200000 * (hpc))) 107#define PCIA_GPR(hpc) (_PCIA_GPR + (0x200000 * (hpc))) 108#define PCIA_ERR(hpc) (_PCIA_ERR + (0x200000 * (hpc))) 109#define PCIA_FADR(hpc) (_PCIA_FADR + (0x200000 * (hpc))) 110#define PCIA_IMASK(hpc) (_PCIA_IMASK + (0x200000 * (hpc))) 111#define PCIA_DIAG(hpc) (_PCIA_DIAG + (0x200000 * (hpc))) 112#define PCIA_IPEND(hpc) (_PCIA_IPEND + (0x200000 * (hpc))) 113#define PCIA_IPROG(hpc) (_PCIA_IPROG + (0x200000 * (hpc))) 114#define PCIA_WMASK_A(hpc) (_PCIA_WMASK_A + (0x200000 * (hpc))) 115#define PCIA_WBASE_A(hpc) (_PCIA_WBASE_A + (0x200000 * (hpc))) 116#define PCIA_TBASE_A(hpc) (_PCIA_TBASE_A + (0x200000 * (hpc))) 117#define PCIA_WMASK_B(hpc) (_PCIA_WMASK_B + (0x200000 * (hpc))) 118#define PCIA_WBASE_B(hpc) (_PCIA_WBASE_B + (0x200000 * (hpc))) 119#define PCIA_TBASE_B(hpc) (_PCIA_TBASE_B + (0x200000 * (hpc))) 120#define PCIA_WMASK_C(hpc) (_PCIA_WMASK_C + (0x200000 * (hpc))) 121#define PCIA_WBASE_C(hpc) (_PCIA_WBASE_C + (0x200000 * (hpc))) 122#define PCIA_TBASE_C(hpc) (_PCIA_TBASE_C + (0x200000 * (hpc))) 123#define PCIA_ERRVEC(hpc) (_PCIA_ERRVEC + (0x200000 * (hpc))) 124 125#define PCIA_DEVVEC(hpc, subslot, ipin) \ 126 (_PCIA_DEVVEC + (0x200000 * (hpc)) + ((subslot) * 0x200) + ((ipin-1) * 0x80)) 127 128#define PCIA_SCYCLE 0x380002000UL /* PCI Special Cycle */ 129#define PCIA_IACK 0x380002080UL /* PCI Interrupt Acknowledge */ 130 131#define PCIA_PRESENT 0x380800000UL /* PCI Slot Present */ 132#define PCIA_TBIT 0x380A00000UL /* PCI TBIT */ 133#define PCIA_MCTL 0x380C00000UL /* PCI Module Control */ 134#define PCIA_IBR 0x380E00000UL /* PCI Information Base Repair */ 135 136/* 137 * Bits in PCIA_CTL register 138 */ 139#define PCIA_CTL_SG32K (0<<25) /* 32K SGMAP entries */ 140#define PCIA_CTL_SG64K (1<<25) /* 64K SGMAP entries */ 141#define PCIA_CTL_SG128K (3<<25) /* 128K SGMAP entries */ 142#define PCIA_CTL_SG0K (2<<25) /* disable SGMAP in HPC */ 143#define PCIA_CTL_4UP (0<<23) /* 4 Up Hose buffers */ 144#define PCIA_CTL_1UP (1<<23) /* 1 "" */ 145#define PCIA_CTL_2UP (2<<23) /* 2 "" */ 146#define PCIA_CTL_3UP (3<<23) /* 3 "" (normal) */ 147#define PCIA_CTL_RMM4X (1<<22) /* Read Multiple 2X -> 4X */ 148#define PCIA_CTL_RMMENA (1<<21) /* Read Multiple Enable */ 149#define PCIA_CTL_RMMARB (1<<20) /* RMM Multiple Arb */ 150#define PCIA_CTL_HAEDIS (1<<19) /* Hardware Address Ext. Disable */ 151#define PCIA_CTL_MHAE(x) ((x&0x1f)<<14) /* Memory Hardware Address Extension */ 152#define PCIA_CTL_IHAE(x) ((x&0x1f)<<9) /* I/O Hardware Address Extension */ 153#define PCIA_CTL_CUTENA (1<<8) /* PCI Cut Through */ 154#define PCIA_CTL_CUT(x) ((x&0x7)<<4) /* PCI Cut Through Size */ 155#define PCIA_CTL_PRESET (1<<3) /* PCI Reset */ 156#define PCIA_CTL_DTHROT (1<<2) /* DMA downthrottle */ 157#define PCIA_CTL_T1CYC (1<<0) /* Type 1 Configuration Cycle */ 158 159/* 160 * Bits in PCIA_ERR. All are "Write 1 to clear". 161 */ 162#define PCIA_ERR_SERR_L (1<<18) /* PCI device asserted SERR_L */ 163#define PCIA_ERR_ILAT (1<<17) /* Incremental Latency Exceeded */ 164#define PCIA_ERR_SGPRTY (1<<16) /* CPU access of SG RAM Parity Error */ 165#define PCIA_ERR_ILLCSR (1<<15) /* Illegal CSR Address Error */ 166#define PCIA_ERR_PCINXM (1<<14) /* Nonexistent PCI Address Error */ 167#define PCIA_ERR_DSCERR (1<<13) /* PCI Target Disconnect Error */ 168#define PCIA_ERR_ABRT (1<<12) /* PCI Target Abort Error */ 169#define PCIA_ERR_WPRTY (1<<11) /* PCI Write Parity Error */ 170#define PCIA_ERR_DPERR (1<<10) /* PCI Data Parity Error */ 171#define PCIA_ERR_APERR (1<<9) /* PCI Address Parity Error */ 172#define PCIA_ERR_DFLT (1<<8) /* SG Map RAM Invalid Entry Error */ 173#define PCIA_ERR_DPRTY (1<<7) /* DMA access of SG RAM Parity Error */ 174#define PCIA_ERR_DRPERR (1<<6) /* DMA Read Return Parity Error */ 175#define PCIA_ERR_MABRT (1<<5) /* PCI Master Abort Error */ 176#define PCIA_ERR_CPRTY (1<<4) /* CSR Parity Error */ 177#define PCIA_ERR_COVR (1<<3) /* CSR Overrun Error */ 178#define PCIA_ERR_MBPERR (1<<2) /* Mailbox Parity Error */ 179#define PCIA_ERR_MBILI (1<<1) /* Mailbox Illegal Length Error */ 180#define PCIA_ERR_ERROR (1<<0) /* Summary Error */ 181#define PCIA_ERR_ALLERR ((1<<19) - 1) 182 183/* 184 * Bits in PCIA_PRESENT. 185 */ 186#define PCIA_PRESENT_REVSHIFT 25 /* shift by this to get revision */ 187#define PCIA_PRESENT_REVMASK 0xf 188#define PCIA_PRESENT_STDIO 0x01000000 /* STD I/O bridge present */ 189#define PCIA_PRESENT_SLOTSHIFT(hpc, slot) \ 190 (((hpc) << 3) + ((slot) << 1)) 191#define PCIA_PRESENT_SLOT_MASK 0x3 192#define PCIA_PRESENT_SLOT_NONE 0x0 193#define PCIA_PRESENT_SLOT_25W 0x1 194#define PCIA_PRESENT_SLOT_15W 0x2 195#define PCIA_PRESENT_SLOW_7W 0x3 196 197/* 198 * Location of the DWLPx SGMAP page table SRAM. 199 */ 200#define PCIA_SGMAP_PT 0x381000000UL 201 202/* 203 * Values for PCIA_WMASK_x 204 */ 205#define PCIA_WMASK_MASK 0xffff0000 /* mask of valid bits */ 206#define PCIA_WMASK_64K 0x00000000 207#define PCIA_WMASK_128K 0x00010000 208#define PCIA_WMASK_256K 0x00030000 209#define PCIA_WMASK_512K 0x00070000 210#define PCIA_WMASK_1M 0x000f0000 211#define PCIA_WMASK_2M 0x001f0000 212#define PCIA_WMASK_4M 0x003f0000 213#define PCIA_WMASK_8M 0x007f0000 214#define PCIA_WMASK_16M 0x00ff0000 215#define PCIA_WMASK_32M 0x01ff0000 216#define PCIA_WMASK_64M 0x03ff0000 217#define PCIA_WMASK_128M 0x07ff0000 218#define PCIA_WMASK_256M 0x0fff0000 219#define PCIA_WMASK_512M 0x1fff0000 220#define PCIA_WMASK_1G 0x3fff0000 221#define PCIA_WMASK_2G 0x7fff0000 222#define PCIA_WMASK_4G 0xffff0000 223 224/* 225 * Values for PCIA_WBASE_x 226 */ 227#define PCIA_WBASE_MASK 0xffff0000 /* mask of valid bits in address */ 228#define PCIA_WBASE_W_EN 0x00000002 /* window enable */ 229#define PCIA_WBASE_SG_EN 0x00000001 /* SGMAP enable */ 230 231/* 232 * Values for PCIA_TBASE_x 233 * 234 * NOTE: Translated Base is only used on direct-mapped DMA on the DWLPx!! 235 */ 236#define PCIA_TBASE_MASK 0x00fffffe 237#define PCIA_TBASE_SHIFT 15 238