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core_titan.h
/* SPDX-License-Identifier: GPL-2.0 */ #ifndef __ALPHA_TITAN__H__ #define __ALPHA_TITAN__H__ #include <linux/types.h> #include <asm/compiler.h> /* * TITAN is the internal names for a core logic chipset which provides * memory controller and PCI/AGP access for 21264 based systems. * * This file is based on: * * Titan Chipset Engineering Specification * Revision 0.12 * 13 July 1999 * */ /* XXX: Do we need to conditionalize on this? */ #ifdef USE_48_BIT_KSEG #define TI_BIAS 0x80000000000UL #else #define TI_BIAS 0x10000000000UL #endif /* * CChip, DChip, and PChip registers */ typedef struct { volatile unsigned long csr __attribute__((aligned(64))); } titan_64; typedef struct { titan_64 csc; titan_64 mtr; titan_64 misc; titan_64 mpd; titan_64 aar0; titan_64 aar1; titan_64 aar2; titan_64 aar3; titan_64 dim0; titan_64 dim1; titan_64 dir0; titan_64 dir1; titan_64 drir; titan_64 prben; titan_64 iic0; titan_64 iic1; titan_64 mpr0; titan_64 mpr1; titan_64 mpr2; titan_64 mpr3; titan_64 rsvd[2]; titan_64 ttr; titan_64 tdr; titan_64 dim2; titan_64 dim3; titan_64 dir2; titan_64 dir3; titan_64 iic2; titan_64 iic3; titan_64 pwr; titan_64 reserved[17]; titan_64 cmonctla; titan_64 cmonctlb; titan_64 cmoncnt01; titan_64 cmoncnt23; titan_64 cpen; } titan_cchip; typedef struct { titan_64 dsc; titan_64 str; titan_64 drev; titan_64 dsc2; } titan_dchip; typedef struct { titan_64 wsba[4]; titan_64 wsm[4]; titan_64 tba[4]; titan_64 pctl; titan_64 plat; titan_64 reserved0[2]; union { struct { titan_64 serror; titan_64 serren; titan_64 serrset; titan_64 reserved0; titan_64 gperror; titan_64 gperren; titan_64 gperrset; titan_64 reserved1; titan_64 gtlbiv; titan_64 gtlbia; titan_64 reserved2[2]; titan_64 sctl; titan_64 reserved3[3]; } g; struct { titan_64 agperror; titan_64 agperren; titan_64 agperrset; titan_64 agplastwr; titan_64 aperror; titan_64 aperren; titan_64 aperrset; titan_64 reserved0; titan_64 atlbiv; titan_64 atlbia; titan_64 reserved1[6]; } a; } port_specific; titan_64 sprst; titan_64 reserved1[31]; } titan_pachip_port; typedef struct { titan_pachip_port g_port; titan_pachip_port a_port; } titan_pachip; #define TITAN_cchip ((titan_cchip *)(IDENT_ADDR+TI_BIAS+0x1A0000000UL)) #define TITAN_dchip ((titan_dchip *)(IDENT_ADDR+TI_BIAS+0x1B0000800UL)) #define TITAN_pachip0 ((titan_pachip *)(IDENT_ADDR+TI_BIAS+0x180000000UL)) #define TITAN_pachip1 ((titan_pachip *)(IDENT_ADDR+TI_BIAS+0x380000000UL)) extern unsigned TITAN_agp; extern int TITAN_bootcpu; /* * TITAN PA-chip Window Space Base Address register. * (WSBA[0-2]) */ #define wsba_m_ena 0x1 #define wsba_m_sg 0x2 #define wsba_m_addr 0xFFF00000 #define wmask_k_sz1gb 0x3FF00000 union TPAchipWSBA { struct { unsigned wsba_v_ena : 1; unsigned wsba_v_sg : 1; unsigned wsba_v_rsvd1 : 18; unsigned wsba_v_addr : 12; unsigned wsba_v_rsvd2 : 32; } wsba_r_bits; int wsba_q_whole [2]; }; /* * TITAN PA-chip Control Register * This definition covers both the G-Port GPCTL and the A-PORT APCTL. * Bits <51:0> are the same in both cases. APCTL<63:52> are only * applicable to AGP. */ #define pctl_m_fbtb 0x00000001 #define pctl_m_thdis 0x00000002 #define pctl_m_chaindis 0x00000004 #define pctl_m_tgtlat 0x00000018 #define pctl_m_hole 0x00000020 #define pctl_m_mwin 0x00000040 #define pctl_m_arbena 0x00000080 #define pctl_m_prigrp 0x0000FF00 #define pctl_m_ppri 0x00010000 #define pctl_m_pcispd66 0x00020000 #define pctl_m_cngstlt 0x003C0000 #define pctl_m_ptpdesten 0x3FC00000 #define pctl_m_dpcen 0x40000000 #define pctl_m_apcen 0x0000000080000000UL #define pctl_m_dcrtv 0x0000000300000000UL #define pctl_m_en_stepping 0x0000000400000000UL #define apctl_m_rsvd1 0x000FFFF800000000UL #define apctl_m_agp_rate 0x0030000000000000UL #define apctl_m_agp_sba_en 0x0040000000000000UL #define apctl_m_agp_en 0x0080000000000000UL #define apctl_m_rsvd2 0x0100000000000000UL #define apctl_m_agp_present 0x0200000000000000UL #define apctl_agp_hp_rd 0x1C00000000000000UL #define apctl_agp_lp_rd 0xE000000000000000UL #define gpctl_m_rsvd 0xFFFFFFF800000000UL union TPAchipPCTL { struct { unsigned pctl_v_fbtb : 1; /* A/G [0] */ unsigned pctl_v_thdis : 1; /* A/G [1] */ unsigned pctl_v_chaindis : 1; /* A/G [2] */ unsigned pctl_v_tgtlat : 2; /* A/G [4:3] */ unsigned pctl_v_hole : 1; /* A/G [5] */ unsigned pctl_v_mwin : 1; /* A/G [6] */ unsigned pctl_v_arbena : 1; /* A/G [7] */ unsigned pctl_v_prigrp : 8; /* A/G [15:8] */ unsigned pctl_v_ppri : 1; /* A/G [16] */ unsigned pctl_v_pcispd66 : 1; /* A/G [17] */ unsigned pctl_v_cngstlt : 4; /* A/G [21:18] */ unsigned pctl_v_ptpdesten : 8; /* A/G [29:22] */ unsigned pctl_v_dpcen : 1; /* A/G [30] */ unsigned pctl_v_apcen : 1; /* A/G [31] */ unsigned pctl_v_dcrtv : 2; /* A/G [33:32] */ unsigned pctl_v_en_stepping :1; /* A/G [34] */ unsigned apctl_v_rsvd1 : 17; /* A [51:35] */ unsigned apctl_v_agp_rate : 2; /* A [53:52] */ unsigned apctl_v_agp_sba_en : 1; /* A [54] */ unsigned apctl_v_agp_en : 1; /* A [55] */ unsigned apctl_v_rsvd2 : 1; /* A [56] */ unsigned apctl_v_agp_present : 1; /* A [57] */ unsigned apctl_v_agp_hp_rd : 3; /* A [60:58] */ unsigned apctl_v_agp_lp_rd : 3; /* A [63:61] */ } pctl_r_bits; unsigned int pctl_l_whole [2]; unsigned long pctl_q_whole; }; /* * SERROR / SERREN / SERRSET */ union TPAchipSERR { struct { unsigned serr_v_lost_uecc : 1; /* [0] */ unsigned serr_v_uecc : 1; /* [1] */ unsigned serr_v_cre : 1; /* [2] */ unsigned serr_v_nxio : 1; /* [3] */ unsigned serr_v_lost_cre : 1; /* [4] */ unsigned serr_v_rsvd0 : 10; /* [14:5] */ unsigned serr_v_addr : 32; /* [46:15] */ unsigned serr_v_rsvd1 : 5; /* [51:47] */ unsigned serr_v_source : 2; /* [53:52] */ unsigned serr_v_cmd : 2; /* [55:54] */ unsigned serr_v_syn : 8; /* [63:56] */ } serr_r_bits; unsigned int serr_l_whole[2]; unsigned long serr_q_whole; }; /* * GPERROR / APERROR / GPERREN / APERREN / GPERRSET / APERRSET */ union TPAchipPERR { struct { unsigned long perr_v_lost : 1; /* [0] */ unsigned long perr_v_serr : 1; /* [1] */ unsigned long perr_v_perr : 1; /* [2] */ unsigned long perr_v_dcrto : 1; /* [3] */ unsigned long perr_v_sge : 1; /* [4] */ unsigned long perr_v_ape : 1; /* [5] */ unsigned long perr_v_ta : 1; /* [6] */ unsigned long perr_v_dpe : 1; /* [7] */ unsigned long perr_v_nds : 1; /* [8] */ unsigned long perr_v_iptpr : 1; /* [9] */ unsigned long perr_v_iptpw : 1; /* [10] */ unsigned long perr_v_rsvd0 : 3; /* [13:11] */ unsigned long perr_v_addr : 33; /* [46:14] */ unsigned long perr_v_dac : 1; /* [47] */ unsigned long perr_v_mwin : 1; /* [48] */ unsigned long perr_v_rsvd1 : 3; /* [51:49] */ unsigned long perr_v_cmd : 4; /* [55:52] */ unsigned long perr_v_rsvd2 : 8; /* [63:56] */ } perr_r_bits; unsigned int perr_l_whole[2]; unsigned long perr_q_whole; }; /* * AGPERROR / AGPERREN / AGPERRSET */ union TPAchipAGPERR { struct { unsigned agperr_v_lost : 1; /* [0] */ unsigned agperr_v_lpqfull : 1; /* [1] */ unsigned apgerr_v_hpqfull : 1; /* [2] */ unsigned agperr_v_rescmd : 1; /* [3] */ unsigned agperr_v_ipte : 1; /* [4] */ unsigned agperr_v_ptp : 1; /* [5] */ unsigned agperr_v_nowindow : 1; /* [6] */ unsigned agperr_v_rsvd0 : 8; /* [14:7] */ unsigned agperr_v_addr : 32; /* [46:15] */ unsigned agperr_v_rsvd1 : 1; /* [47] */ unsigned agperr_v_dac : 1; /* [48] */ unsigned agperr_v_mwin : 1; /* [49] */ unsigned agperr_v_cmd : 3; /* [52:50] */ unsigned agperr_v_length : 6; /* [58:53] */ unsigned agperr_v_fence : 1; /* [59] */ unsigned agperr_v_rsvd2 : 4; /* [63:60] */ } agperr_r_bits; unsigned int agperr_l_whole[2]; unsigned long agperr_q_whole; }; /* * Memory spaces: * Hose numbers are assigned as follows: * 0 - pachip 0 / G Port * 1 - pachip 1 / G Port * 2 - pachip 0 / A Port * 3 - pachip 1 / A Port */ #define TITAN_HOSE_SHIFT (33) #define TITAN_HOSE(h) (((unsigned long)(h)) << TITAN_HOSE_SHIFT) #define TITAN_BASE (IDENT_ADDR + TI_BIAS) #define TITAN_MEM(h) (TITAN_BASE+TITAN_HOSE(h)+0x000000000UL) #define _TITAN_IACK_SC(h) (TITAN_BASE+TITAN_HOSE(h)+0x1F8000000UL) #define TITAN_IO(h) (TITAN_BASE+TITAN_HOSE(h)+0x1FC000000UL) #define TITAN_CONF(h) (TITAN_BASE+TITAN_HOSE(h)+0x1FE000000UL) #define TITAN_HOSE_MASK TITAN_HOSE(3) #define TITAN_IACK_SC _TITAN_IACK_SC(0) /* hack! */ /* * The canonical non-remaped I/O and MEM addresses have these values * subtracted out. This is arranged so that folks manipulating ISA * devices can use their familiar numbers and have them map to bus 0. */ #define TITAN_IO_BIAS TITAN_IO(0) #define TITAN_MEM_BIAS TITAN_MEM(0) /* The IO address space is larger than 0xffff */ #define TITAN_IO_SPACE (TITAN_CONF(0) - TITAN_IO(0)) /* TIG Space */ #define TITAN_TIG_SPACE (TITAN_BASE + 0x100000000UL) /* Offset between ram physical addresses and pci64 DAC bus addresses. */ /* ??? Just a guess. Ought to confirm it hasn't been moved. */ #define TITAN_DAC_OFFSET (1UL << 40) /* * Data structure for handling TITAN machine checks: */ #define SCB_Q_SYSERR 0x620 #define SCB_Q_PROCERR 0x630 #define SCB_Q_SYSMCHK 0x660 #define SCB_Q_PROCMCHK 0x670 #define SCB_Q_SYSEVENT 0x680 /* environmental / system management */ struct el_TITAN_sysdata_mcheck { u64 summary; /* 0x00 */ u64 c_dirx; /* 0x08 */ u64 c_misc; /* 0x10 */ u64 p0_serror; /* 0x18 */ u64 p0_gperror; /* 0x20 */ u64 p0_aperror; /* 0x28 */ u64 p0_agperror;/* 0x30 */ u64 p1_serror; /* 0x38 */ u64 p1_gperror; /* 0x40 */ u64 p1_aperror; /* 0x48 */ u64 p1_agperror;/* 0x50 */ }; /* * System area for a privateer 680 environmental/system management mcheck */ struct el_PRIVATEER_envdata_mcheck { u64 summary; /* 0x00 */ u64 c_dirx; /* 0x08 */ u64 smir; /* 0x10 */ u64 cpuir; /* 0x18 */ u64 psir; /* 0x20 */ u64 fault; /* 0x28 */ u64 sys_doors; /* 0x30 */ u64 temp_warn; /* 0x38 */ u64 fan_ctrl; /* 0x40 */ u64 code; /* 0x48 */ u64 reserved; /* 0x50 */ }; #ifdef __KERNEL__ #ifndef __EXTERN_INLINE #define __EXTERN_INLINE extern inline #define __IO_EXTERN_INLINE #endif /* * I/O functions: * * TITAN, a 21??? PCI/memory support chipset for the EV6 (21264) * can only use linear accesses to get at PCI/AGP memory and I/O spaces. */ /* * Memory functions. all accesses are done through linear space. */ extern void __iomem *titan_ioportmap(unsigned long addr); extern void __iomem *titan_ioremap(unsigned long addr, unsigned long size); extern void titan_iounmap(volatile void __iomem *addr); __EXTERN_INLINE int titan_is_ioaddr(unsigned long addr) { return addr >= TITAN_BASE; } extern int titan_is_mmio(const volatile void __iomem *addr); #undef __IO_PREFIX #define __IO_PREFIX titan #define titan_trivial_rw_bw 1 #define titan_trivial_rw_lq 1 #define titan_trivial_io_bw 1 #define titan_trivial_io_lq 1 #define titan_trivial_iounmap 0 #include <asm/io_trivial.h> #ifdef __IO_EXTERN_INLINE #undef __EXTERN_INLINE #undef __IO_EXTERN_INLINE #endif #endif /* __KERNEL__ */ #endif /* __ALPHA_TITAN__H__ */
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