1 #ifndef __ALPHA_TITAN__H__ 2 #define __ALPHA_TITAN__H__ 3 4 #include <linux/types.h> 5 #include <asm/compiler.h> 6 7 /* 8 * TITAN is the internal names for a core logic chipset which provides 9 * memory controller and PCI/AGP access for 21264 based systems. 10 * 11 * This file is based on: 12 * 13 * Titan Chipset Engineering Specification 14 * Revision 0.12 15 * 13 July 1999 16 * 17 */ 18 19 /* XXX: Do we need to conditionalize on this? */ 20 #ifdef USE_48_BIT_KSEG 21 #define TI_BIAS 0x80000000000UL 22 #else 23 #define TI_BIAS 0x10000000000UL 24 #endif 25 26 /* 27 * CChip, DChip, and PChip registers 28 */ 29 30 typedef struct { 31 volatile unsigned long csr __attribute__((aligned(64))); 32 } titan_64; 33 34 typedef struct { 35 titan_64 csc; 36 titan_64 mtr; 37 titan_64 misc; 38 titan_64 mpd; 39 titan_64 aar0; 40 titan_64 aar1; 41 titan_64 aar2; 42 titan_64 aar3; 43 titan_64 dim0; 44 titan_64 dim1; 45 titan_64 dir0; 46 titan_64 dir1; 47 titan_64 drir; 48 titan_64 prben; 49 titan_64 iic0; 50 titan_64 iic1; 51 titan_64 mpr0; 52 titan_64 mpr1; 53 titan_64 mpr2; 54 titan_64 mpr3; 55 titan_64 rsvd[2]; 56 titan_64 ttr; 57 titan_64 tdr; 58 titan_64 dim2; 59 titan_64 dim3; 60 titan_64 dir2; 61 titan_64 dir3; 62 titan_64 iic2; 63 titan_64 iic3; 64 titan_64 pwr; 65 titan_64 reserved[17]; 66 titan_64 cmonctla; 67 titan_64 cmonctlb; 68 titan_64 cmoncnt01; 69 titan_64 cmoncnt23; 70 titan_64 cpen; 71 } titan_cchip; 72 73 typedef struct { 74 titan_64 dsc; 75 titan_64 str; 76 titan_64 drev; 77 titan_64 dsc2; 78 } titan_dchip; 79 80 typedef struct { 81 titan_64 wsba[4]; 82 titan_64 wsm[4]; 83 titan_64 tba[4]; 84 titan_64 pctl; 85 titan_64 plat; 86 titan_64 reserved0[2]; 87 union { 88 struct { 89 titan_64 serror; 90 titan_64 serren; 91 titan_64 serrset; 92 titan_64 reserved0; 93 titan_64 gperror; 94 titan_64 gperren; 95 titan_64 gperrset; 96 titan_64 reserved1; 97 titan_64 gtlbiv; 98 titan_64 gtlbia; 99 titan_64 reserved2[2]; 100 titan_64 sctl; 101 titan_64 reserved3[3]; 102 } g; 103 struct { 104 titan_64 agperror; 105 titan_64 agperren; 106 titan_64 agperrset; 107 titan_64 agplastwr; 108 titan_64 aperror; 109 titan_64 aperren; 110 titan_64 aperrset; 111 titan_64 reserved0; 112 titan_64 atlbiv; 113 titan_64 atlbia; 114 titan_64 reserved1[6]; 115 } a; 116 } port_specific; 117 titan_64 sprst; 118 titan_64 reserved1[31]; 119 } titan_pachip_port; 120 121 typedef struct { 122 titan_pachip_port g_port; 123 titan_pachip_port a_port; 124 } titan_pachip; 125 126 #define TITAN_cchip ((titan_cchip *)(IDENT_ADDR+TI_BIAS+0x1A0000000UL)) 127 #define TITAN_dchip ((titan_dchip *)(IDENT_ADDR+TI_BIAS+0x1B0000800UL)) 128 #define TITAN_pachip0 ((titan_pachip *)(IDENT_ADDR+TI_BIAS+0x180000000UL)) 129 #define TITAN_pachip1 ((titan_pachip *)(IDENT_ADDR+TI_BIAS+0x380000000UL)) 130 extern unsigned TITAN_agp; 131 extern int TITAN_bootcpu; 132 133 /* 134 * TITAN PA-chip Window Space Base Address register. 135 * (WSBA[0-2]) 136 */ 137 #define wsba_m_ena 0x1 138 #define wsba_m_sg 0x2 139 #define wsba_m_addr 0xFFF00000 140 #define wmask_k_sz1gb 0x3FF00000 141 union TPAchipWSBA { 142 struct { 143 unsigned wsba_v_ena : 1; 144 unsigned wsba_v_sg : 1; 145 unsigned wsba_v_rsvd1 : 18; 146 unsigned wsba_v_addr : 12; 147 unsigned wsba_v_rsvd2 : 32; 148 } wsba_r_bits; 149 int wsba_q_whole [2]; 150 }; 151 152 /* 153 * TITAN PA-chip Control Register 154 * This definition covers both the G-Port GPCTL and the A-PORT APCTL. 155 * Bits <51:0> are the same in both cases. APCTL<63:52> are only 156 * applicable to AGP. 157 */ 158 #define pctl_m_fbtb 0x00000001 159 #define pctl_m_thdis 0x00000002 160 #define pctl_m_chaindis 0x00000004 161 #define pctl_m_tgtlat 0x00000018 162 #define pctl_m_hole 0x00000020 163 #define pctl_m_mwin 0x00000040 164 #define pctl_m_arbena 0x00000080 165 #define pctl_m_prigrp 0x0000FF00 166 #define pctl_m_ppri 0x00010000 167 #define pctl_m_pcispd66 0x00020000 168 #define pctl_m_cngstlt 0x003C0000 169 #define pctl_m_ptpdesten 0x3FC00000 170 #define pctl_m_dpcen 0x40000000 171 #define pctl_m_apcen 0x0000000080000000UL 172 #define pctl_m_dcrtv 0x0000000300000000UL 173 #define pctl_m_en_stepping 0x0000000400000000UL 174 #define apctl_m_rsvd1 0x000FFFF800000000UL 175 #define apctl_m_agp_rate 0x0030000000000000UL 176 #define apctl_m_agp_sba_en 0x0040000000000000UL 177 #define apctl_m_agp_en 0x0080000000000000UL 178 #define apctl_m_rsvd2 0x0100000000000000UL 179 #define apctl_m_agp_present 0x0200000000000000UL 180 #define apctl_agp_hp_rd 0x1C00000000000000UL 181 #define apctl_agp_lp_rd 0xE000000000000000UL 182 #define gpctl_m_rsvd 0xFFFFFFF800000000UL 183 union TPAchipPCTL { 184 struct { 185 unsigned pctl_v_fbtb : 1; /* A/G [0] */ 186 unsigned pctl_v_thdis : 1; /* A/G [1] */ 187 unsigned pctl_v_chaindis : 1; /* A/G [2] */ 188 unsigned pctl_v_tgtlat : 2; /* A/G [4:3] */ 189 unsigned pctl_v_hole : 1; /* A/G [5] */ 190 unsigned pctl_v_mwin : 1; /* A/G [6] */ 191 unsigned pctl_v_arbena : 1; /* A/G [7] */ 192 unsigned pctl_v_prigrp : 8; /* A/G [15:8] */ 193 unsigned pctl_v_ppri : 1; /* A/G [16] */ 194 unsigned pctl_v_pcispd66 : 1; /* A/G [17] */ 195 unsigned pctl_v_cngstlt : 4; /* A/G [21:18] */ 196 unsigned pctl_v_ptpdesten : 8; /* A/G [29:22] */ 197 unsigned pctl_v_dpcen : 1; /* A/G [30] */ 198 unsigned pctl_v_apcen : 1; /* A/G [31] */ 199 unsigned pctl_v_dcrtv : 2; /* A/G [33:32] */ 200 unsigned pctl_v_en_stepping :1; /* A/G [34] */ 201 unsigned apctl_v_rsvd1 : 17; /* A [51:35] */ 202 unsigned apctl_v_agp_rate : 2; /* A [53:52] */ 203 unsigned apctl_v_agp_sba_en : 1; /* A [54] */ 204 unsigned apctl_v_agp_en : 1; /* A [55] */ 205 unsigned apctl_v_rsvd2 : 1; /* A [56] */ 206 unsigned apctl_v_agp_present : 1; /* A [57] */ 207 unsigned apctl_v_agp_hp_rd : 3; /* A [60:58] */ 208 unsigned apctl_v_agp_lp_rd : 3; /* A [63:61] */ 209 } pctl_r_bits; 210 unsigned int pctl_l_whole [2]; 211 unsigned long pctl_q_whole; 212 }; 213 214 /* 215 * SERROR / SERREN / SERRSET 216 */ 217 union TPAchipSERR { 218 struct { 219 unsigned serr_v_lost_uecc : 1; /* [0] */ 220 unsigned serr_v_uecc : 1; /* [1] */ 221 unsigned serr_v_cre : 1; /* [2] */ 222 unsigned serr_v_nxio : 1; /* [3] */ 223 unsigned serr_v_lost_cre : 1; /* [4] */ 224 unsigned serr_v_rsvd0 : 10; /* [14:5] */ 225 unsigned serr_v_addr : 32; /* [46:15] */ 226 unsigned serr_v_rsvd1 : 5; /* [51:47] */ 227 unsigned serr_v_source : 2; /* [53:52] */ 228 unsigned serr_v_cmd : 2; /* [55:54] */ 229 unsigned serr_v_syn : 8; /* [63:56] */ 230 } serr_r_bits; 231 unsigned int serr_l_whole[2]; 232 unsigned long serr_q_whole; 233 }; 234 235 /* 236 * GPERROR / APERROR / GPERREN / APERREN / GPERRSET / APERRSET 237 */ 238 union TPAchipPERR { 239 struct { 240 unsigned long perr_v_lost : 1; /* [0] */ 241 unsigned long perr_v_serr : 1; /* [1] */ 242 unsigned long perr_v_perr : 1; /* [2] */ 243 unsigned long perr_v_dcrto : 1; /* [3] */ 244 unsigned long perr_v_sge : 1; /* [4] */ 245 unsigned long perr_v_ape : 1; /* [5] */ 246 unsigned long perr_v_ta : 1; /* [6] */ 247 unsigned long perr_v_dpe : 1; /* [7] */ 248 unsigned long perr_v_nds : 1; /* [8] */ 249 unsigned long perr_v_iptpr : 1; /* [9] */ 250 unsigned long perr_v_iptpw : 1; /* [10] */ 251 unsigned long perr_v_rsvd0 : 3; /* [13:11] */ 252 unsigned long perr_v_addr : 33; /* [46:14] */ 253 unsigned long perr_v_dac : 1; /* [47] */ 254 unsigned long perr_v_mwin : 1; /* [48] */ 255 unsigned long perr_v_rsvd1 : 3; /* [51:49] */ 256 unsigned long perr_v_cmd : 4; /* [55:52] */ 257 unsigned long perr_v_rsvd2 : 8; /* [63:56] */ 258 } perr_r_bits; 259 unsigned int perr_l_whole[2]; 260 unsigned long perr_q_whole; 261 }; 262 263 /* 264 * AGPERROR / AGPERREN / AGPERRSET 265 */ 266 union TPAchipAGPERR { 267 struct { 268 unsigned agperr_v_lost : 1; /* [0] */ 269 unsigned agperr_v_lpqfull : 1; /* [1] */ 270 unsigned apgerr_v_hpqfull : 1; /* [2] */ 271 unsigned agperr_v_rescmd : 1; /* [3] */ 272 unsigned agperr_v_ipte : 1; /* [4] */ 273 unsigned agperr_v_ptp : 1; /* [5] */ 274 unsigned agperr_v_nowindow : 1; /* [6] */ 275 unsigned agperr_v_rsvd0 : 8; /* [14:7] */ 276 unsigned agperr_v_addr : 32; /* [46:15] */ 277 unsigned agperr_v_rsvd1 : 1; /* [47] */ 278 unsigned agperr_v_dac : 1; /* [48] */ 279 unsigned agperr_v_mwin : 1; /* [49] */ 280 unsigned agperr_v_cmd : 3; /* [52:50] */ 281 unsigned agperr_v_length : 6; /* [58:53] */ 282 unsigned agperr_v_fence : 1; /* [59] */ 283 unsigned agperr_v_rsvd2 : 4; /* [63:60] */ 284 } agperr_r_bits; 285 unsigned int agperr_l_whole[2]; 286 unsigned long agperr_q_whole; 287 }; 288 /* 289 * Memory spaces: 290 * Hose numbers are assigned as follows: 291 * 0 - pachip 0 / G Port 292 * 1 - pachip 1 / G Port 293 * 2 - pachip 0 / A Port 294 * 3 - pachip 1 / A Port 295 */ 296 #define TITAN_HOSE_SHIFT (33) 297 #define TITAN_HOSE(h) (((unsigned long)(h)) << TITAN_HOSE_SHIFT) 298 #define TITAN_BASE (IDENT_ADDR + TI_BIAS) 299 #define TITAN_MEM(h) (TITAN_BASE+TITAN_HOSE(h)+0x000000000UL) 300 #define _TITAN_IACK_SC(h) (TITAN_BASE+TITAN_HOSE(h)+0x1F8000000UL) 301 #define TITAN_IO(h) (TITAN_BASE+TITAN_HOSE(h)+0x1FC000000UL) 302 #define TITAN_CONF(h) (TITAN_BASE+TITAN_HOSE(h)+0x1FE000000UL) 303 304 #define TITAN_HOSE_MASK TITAN_HOSE(3) 305 #define TITAN_IACK_SC _TITAN_IACK_SC(0) /* hack! */ 306 307 /* 308 * The canonical non-remaped I/O and MEM addresses have these values 309 * subtracted out. This is arranged so that folks manipulating ISA 310 * devices can use their familiar numbers and have them map to bus 0. 311 */ 312 313 #define TITAN_IO_BIAS TITAN_IO(0) 314 #define TITAN_MEM_BIAS TITAN_MEM(0) 315 316 /* The IO address space is larger than 0xffff */ 317 #define TITAN_IO_SPACE (TITAN_CONF(0) - TITAN_IO(0)) 318 319 /* TIG Space */ 320 #define TITAN_TIG_SPACE (TITAN_BASE + 0x100000000UL) 321 322 /* Offset between ram physical addresses and pci64 DAC bus addresses. */ 323 /* ??? Just a guess. Ought to confirm it hasn't been moved. */ 324 #define TITAN_DAC_OFFSET (1UL << 40) 325 326 /* 327 * Data structure for handling TITAN machine checks: 328 */ 329 #define SCB_Q_SYSERR 0x620 330 #define SCB_Q_PROCERR 0x630 331 #define SCB_Q_SYSMCHK 0x660 332 #define SCB_Q_PROCMCHK 0x670 333 #define SCB_Q_SYSEVENT 0x680 /* environmental / system management */ 334 struct el_TITAN_sysdata_mcheck { 335 u64 summary; /* 0x00 */ 336 u64 c_dirx; /* 0x08 */ 337 u64 c_misc; /* 0x10 */ 338 u64 p0_serror; /* 0x18 */ 339 u64 p0_gperror; /* 0x20 */ 340 u64 p0_aperror; /* 0x28 */ 341 u64 p0_agperror;/* 0x30 */ 342 u64 p1_serror; /* 0x38 */ 343 u64 p1_gperror; /* 0x40 */ 344 u64 p1_aperror; /* 0x48 */ 345 u64 p1_agperror;/* 0x50 */ 346 }; 347 348 /* 349 * System area for a privateer 680 environmental/system management mcheck 350 */ 351 struct el_PRIVATEER_envdata_mcheck { 352 u64 summary; /* 0x00 */ 353 u64 c_dirx; /* 0x08 */ 354 u64 smir; /* 0x10 */ 355 u64 cpuir; /* 0x18 */ 356 u64 psir; /* 0x20 */ 357 u64 fault; /* 0x28 */ 358 u64 sys_doors; /* 0x30 */ 359 u64 temp_warn; /* 0x38 */ 360 u64 fan_ctrl; /* 0x40 */ 361 u64 code; /* 0x48 */ 362 u64 reserved; /* 0x50 */ 363 }; 364 365 #ifdef __KERNEL__ 366 367 #ifndef __EXTERN_INLINE 368 #define __EXTERN_INLINE extern inline 369 #define __IO_EXTERN_INLINE 370 #endif 371 372 /* 373 * I/O functions: 374 * 375 * TITAN, a 21??? PCI/memory support chipset for the EV6 (21264) 376 * can only use linear accesses to get at PCI/AGP memory and I/O spaces. 377 */ 378 379 /* 380 * Memory functions. all accesses are done through linear space. 381 */ 382 extern void __iomem *titan_ioportmap(unsigned long addr); 383 extern void __iomem *titan_ioremap(unsigned long addr, unsigned long size); 384 extern void titan_iounmap(volatile void __iomem *addr); 385 386 __EXTERN_INLINE int titan_is_ioaddr(unsigned long addr) 387 { 388 return addr >= TITAN_BASE; 389 } 390 391 extern int titan_is_mmio(const volatile void __iomem *addr); 392 393 #undef __IO_PREFIX 394 #define __IO_PREFIX titan 395 #define titan_trivial_rw_bw 1 396 #define titan_trivial_rw_lq 1 397 #define titan_trivial_io_bw 1 398 #define titan_trivial_io_lq 1 399 #define titan_trivial_iounmap 0 400 #include <asm/io_trivial.h> 401 402 #ifdef __IO_EXTERN_INLINE 403 #undef __EXTERN_INLINE 404 #undef __IO_EXTERN_INLINE 405 #endif 406 407 #endif /* __KERNEL__ */ 408 409 #endif /* __ALPHA_TITAN__H__ */ 410