1/* SPDX-License-Identifier: GPL-2.0 */ 2#ifndef __ALPHA_TSUNAMI__H__ 3#define __ALPHA_TSUNAMI__H__ 4 5#include <linux/types.h> 6#include <asm/compiler.h> 7 8/* 9 * TSUNAMI/TYPHOON are the internal names for the core logic chipset which 10 * provides memory controller and PCI access for the 21264 based systems. 11 * 12 * This file is based on: 13 * 14 * Tsunami System Programmers Manual 15 * Preliminary, Chapters 2-5 16 * 17 */ 18 19/* XXX: Do we need to conditionalize on this? */ 20#ifdef USE_48_BIT_KSEG 21#define TS_BIAS 0x80000000000UL 22#else 23#define TS_BIAS 0x10000000000UL 24#endif 25 26/* 27 * CChip, DChip, and PChip registers 28 */ 29 30typedef struct { 31 volatile unsigned long csr __attribute__((aligned(64))); 32} tsunami_64; 33 34typedef struct { 35 tsunami_64 csc; 36 tsunami_64 mtr; 37 tsunami_64 misc; 38 tsunami_64 mpd; 39 tsunami_64 aar0; 40 tsunami_64 aar1; 41 tsunami_64 aar2; 42 tsunami_64 aar3; 43 tsunami_64 dim0; 44 tsunami_64 dim1; 45 tsunami_64 dir0; 46 tsunami_64 dir1; 47 tsunami_64 drir; 48 tsunami_64 prben; 49 tsunami_64 iic; /* a.k.a. iic0 */ 50 tsunami_64 wdr; /* a.k.a. iic1 */ 51 tsunami_64 mpr0; 52 tsunami_64 mpr1; 53 tsunami_64 mpr2; 54 tsunami_64 mpr3; 55 tsunami_64 mctl; 56 tsunami_64 __pad1; 57 tsunami_64 ttr; 58 tsunami_64 tdr; 59 tsunami_64 dim2; 60 tsunami_64 dim3; 61 tsunami_64 dir2; 62 tsunami_64 dir3; 63 tsunami_64 iic2; 64 tsunami_64 iic3; 65} tsunami_cchip; 66 67typedef struct { 68 tsunami_64 dsc; 69 tsunami_64 str; 70 tsunami_64 drev; 71} tsunami_dchip; 72 73typedef struct { 74 tsunami_64 wsba[4]; 75 tsunami_64 wsm[4]; 76 tsunami_64 tba[4]; 77 tsunami_64 pctl; 78 tsunami_64 plat; 79 tsunami_64 reserved; 80 tsunami_64 perror; 81 tsunami_64 perrmask; 82 tsunami_64 perrset; 83 tsunami_64 tlbiv; 84 tsunami_64 tlbia; 85 tsunami_64 pmonctl; 86 tsunami_64 pmoncnt; 87} tsunami_pchip; 88 89#define TSUNAMI_cchip ((tsunami_cchip *)(IDENT_ADDR+TS_BIAS+0x1A0000000UL)) 90#define TSUNAMI_dchip ((tsunami_dchip *)(IDENT_ADDR+TS_BIAS+0x1B0000800UL)) 91#define TSUNAMI_pchip0 ((tsunami_pchip *)(IDENT_ADDR+TS_BIAS+0x180000000UL)) 92#define TSUNAMI_pchip1 ((tsunami_pchip *)(IDENT_ADDR+TS_BIAS+0x380000000UL)) 93extern int TSUNAMI_bootcpu; 94 95/* 96 * TSUNAMI Pchip Error register. 97 */ 98 99#define perror_m_lost 0x1 100#define perror_m_serr 0x2 101#define perror_m_perr 0x4 102#define perror_m_dcrto 0x8 103#define perror_m_sge 0x10 104#define perror_m_ape 0x20 105#define perror_m_ta 0x40 106#define perror_m_rdpe 0x80 107#define perror_m_nds 0x100 108#define perror_m_rto 0x200 109#define perror_m_uecc 0x400 110#define perror_m_cre 0x800 111#define perror_m_addrl 0xFFFFFFFF0000UL 112#define perror_m_addrh 0x7000000000000UL 113#define perror_m_cmd 0xF0000000000000UL 114#define perror_m_syn 0xFF00000000000000UL 115union TPchipPERROR { 116 struct { 117 unsigned int perror_v_lost : 1; 118 unsigned perror_v_serr : 1; 119 unsigned perror_v_perr : 1; 120 unsigned perror_v_dcrto : 1; 121 unsigned perror_v_sge : 1; 122 unsigned perror_v_ape : 1; 123 unsigned perror_v_ta : 1; 124 unsigned perror_v_rdpe : 1; 125 unsigned perror_v_nds : 1; 126 unsigned perror_v_rto : 1; 127 unsigned perror_v_uecc : 1; 128 unsigned perror_v_cre : 1; 129 unsigned perror_v_rsvd1 : 4; 130 unsigned perror_v_addrl : 32; 131 unsigned perror_v_addrh : 3; 132 unsigned perror_v_rsvd2 : 1; 133 unsigned perror_v_cmd : 4; 134 unsigned perror_v_syn : 8; 135 } perror_r_bits; 136 int perror_q_whole [2]; 137}; 138 139/* 140 * TSUNAMI Pchip Window Space Base Address register. 141 */ 142#define wsba_m_ena 0x1 143#define wsba_m_sg 0x2 144#define wsba_m_ptp 0x4 145#define wsba_m_addr 0xFFF00000 146#define wmask_k_sz1gb 0x3FF00000 147union TPchipWSBA { 148 struct { 149 unsigned wsba_v_ena : 1; 150 unsigned wsba_v_sg : 1; 151 unsigned wsba_v_ptp : 1; 152 unsigned wsba_v_rsvd1 : 17; 153 unsigned wsba_v_addr : 12; 154 unsigned wsba_v_rsvd2 : 32; 155 } wsba_r_bits; 156 int wsba_q_whole [2]; 157}; 158 159/* 160 * TSUNAMI Pchip Control Register 161 */ 162#define pctl_m_fdsc 0x1 163#define pctl_m_fbtb 0x2 164#define pctl_m_thdis 0x4 165#define pctl_m_chaindis 0x8 166#define pctl_m_tgtlat 0x10 167#define pctl_m_hole 0x20 168#define pctl_m_mwin 0x40 169#define pctl_m_arbena 0x80 170#define pctl_m_prigrp 0x7F00 171#define pctl_m_ppri 0x8000 172#define pctl_m_rsvd1 0x30000 173#define pctl_m_eccen 0x40000 174#define pctl_m_padm 0x80000 175#define pctl_m_cdqmax 0xF00000 176#define pctl_m_rev 0xFF000000 177#define pctl_m_crqmax 0xF00000000UL 178#define pctl_m_ptpmax 0xF000000000UL 179#define pctl_m_pclkx 0x30000000000UL 180#define pctl_m_fdsdis 0x40000000000UL 181#define pctl_m_fdwdis 0x80000000000UL 182#define pctl_m_ptevrfy 0x100000000000UL 183#define pctl_m_rpp 0x200000000000UL 184#define pctl_m_pid 0xC00000000000UL 185#define pctl_m_rsvd2 0xFFFF000000000000UL 186 187union TPchipPCTL { 188 struct { 189 unsigned pctl_v_fdsc : 1; 190 unsigned pctl_v_fbtb : 1; 191 unsigned pctl_v_thdis : 1; 192 unsigned pctl_v_chaindis : 1; 193 unsigned pctl_v_tgtlat : 1; 194 unsigned pctl_v_hole : 1; 195 unsigned pctl_v_mwin : 1; 196 unsigned pctl_v_arbena : 1; 197 unsigned pctl_v_prigrp : 7; 198 unsigned pctl_v_ppri : 1; 199 unsigned pctl_v_rsvd1 : 2; 200 unsigned pctl_v_eccen : 1; 201 unsigned pctl_v_padm : 1; 202 unsigned pctl_v_cdqmax : 4; 203 unsigned pctl_v_rev : 8; 204 unsigned pctl_v_crqmax : 4; 205 unsigned pctl_v_ptpmax : 4; 206 unsigned pctl_v_pclkx : 2; 207 unsigned pctl_v_fdsdis : 1; 208 unsigned pctl_v_fdwdis : 1; 209 unsigned pctl_v_ptevrfy : 1; 210 unsigned pctl_v_rpp : 1; 211 unsigned pctl_v_pid : 2; 212 unsigned pctl_v_rsvd2 : 16; 213 } pctl_r_bits; 214 int pctl_q_whole [2]; 215}; 216 217/* 218 * TSUNAMI Pchip Error Mask Register. 219 */ 220#define perrmask_m_lost 0x1 221#define perrmask_m_serr 0x2 222#define perrmask_m_perr 0x4 223#define perrmask_m_dcrto 0x8 224#define perrmask_m_sge 0x10 225#define perrmask_m_ape 0x20 226#define perrmask_m_ta 0x40 227#define perrmask_m_rdpe 0x80 228#define perrmask_m_nds 0x100 229#define perrmask_m_rto 0x200 230#define perrmask_m_uecc 0x400 231#define perrmask_m_cre 0x800 232#define perrmask_m_rsvd 0xFFFFFFFFFFFFF000UL 233union TPchipPERRMASK { 234 struct { 235 unsigned int perrmask_v_lost : 1; 236 unsigned perrmask_v_serr : 1; 237 unsigned perrmask_v_perr : 1; 238 unsigned perrmask_v_dcrto : 1; 239 unsigned perrmask_v_sge : 1; 240 unsigned perrmask_v_ape : 1; 241 unsigned perrmask_v_ta : 1; 242 unsigned perrmask_v_rdpe : 1; 243 unsigned perrmask_v_nds : 1; 244 unsigned perrmask_v_rto : 1; 245 unsigned perrmask_v_uecc : 1; 246 unsigned perrmask_v_cre : 1; 247 unsigned perrmask_v_rsvd1 : 20; 248 unsigned perrmask_v_rsvd2 : 32; 249 } perrmask_r_bits; 250 int perrmask_q_whole [2]; 251}; 252 253/* 254 * Memory spaces: 255 */ 256#define TSUNAMI_HOSE(h) (((unsigned long)(h)) << 33) 257#define TSUNAMI_BASE (IDENT_ADDR + TS_BIAS) 258 259#define TSUNAMI_MEM(h) (TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x000000000UL) 260#define _TSUNAMI_IACK_SC(h) (TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x1F8000000UL) 261#define TSUNAMI_IO(h) (TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x1FC000000UL) 262#define TSUNAMI_CONF(h) (TSUNAMI_BASE+TSUNAMI_HOSE(h) + 0x1FE000000UL) 263 264#define TSUNAMI_IACK_SC _TSUNAMI_IACK_SC(0) /* hack! */ 265 266 267/* 268 * The canonical non-remaped I/O and MEM addresses have these values 269 * subtracted out. This is arranged so that folks manipulating ISA 270 * devices can use their familiar numbers and have them map to bus 0. 271 */ 272 273#define TSUNAMI_IO_BIAS TSUNAMI_IO(0) 274#define TSUNAMI_MEM_BIAS TSUNAMI_MEM(0) 275 276/* The IO address space is larger than 0xffff */ 277#define TSUNAMI_IO_SPACE (TSUNAMI_CONF(0) - TSUNAMI_IO(0)) 278 279/* Offset between ram physical addresses and pci64 DAC bus addresses. */ 280#define TSUNAMI_DAC_OFFSET (1UL << 40) 281 282/* 283 * Data structure for handling TSUNAMI machine checks: 284 */ 285struct el_TSUNAMI_sysdata_mcheck { 286}; 287 288 289#ifdef __KERNEL__ 290 291#ifndef __EXTERN_INLINE 292#define __EXTERN_INLINE extern inline 293#define __IO_EXTERN_INLINE 294#endif 295 296/* 297 * I/O functions: 298 * 299 * TSUNAMI, the 21??? PCI/memory support chipset for the EV6 (21264) 300 * can only use linear accesses to get at PCI memory and I/O spaces. 301 */ 302 303/* 304 * Memory functions. all accesses are done through linear space. 305 */ 306extern void __iomem *tsunami_ioportmap(unsigned long addr); 307extern void __iomem *tsunami_ioremap(unsigned long addr, unsigned long size); 308__EXTERN_INLINE int tsunami_is_ioaddr(unsigned long addr) 309{ 310 return addr >= TSUNAMI_BASE; 311} 312 313__EXTERN_INLINE int tsunami_is_mmio(const volatile void __iomem *xaddr) 314{ 315 unsigned long addr = (unsigned long) xaddr; 316 return (addr & 0x100000000UL) == 0; 317} 318 319#undef __IO_PREFIX 320#define __IO_PREFIX tsunami 321#define tsunami_trivial_rw_bw 1 322#define tsunami_trivial_rw_lq 1 323#define tsunami_trivial_io_bw 1 324#define tsunami_trivial_io_lq 1 325#define tsunami_trivial_iounmap 1 326#include <asm/io_trivial.h> 327 328#ifdef __IO_EXTERN_INLINE 329#undef __EXTERN_INLINE 330#undef __IO_EXTERN_INLINE 331#endif 332 333#endif /* __KERNEL__ */ 334 335#endif /* __ALPHA_TSUNAMI__H__ */ 336