core_titan.h
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- #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(h) (((unsigned long)(h)) << 33)
- #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_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.
- */
- #define vucp volatile unsigned char *
- #define vusp volatile unsigned short *
- #define vuip volatile unsigned int *
- #define vulp volatile unsigned long *
- __EXTERN_INLINE u8 titan_inb(unsigned long addr)
- {
- /* ??? I wish I could get rid of this. But there's no ioremap
- equivalent for I/O space. PCI I/O can be forced into the
- correct hose's I/O region, but that doesn't take care of
- legacy ISA crap. */
- addr += TITAN_IO_BIAS;
- return __kernel_ldbu(*(vucp)addr);
- }
- __EXTERN_INLINE void titan_outb(u8 b, unsigned long addr)
- {
- addr += TITAN_IO_BIAS;
- __kernel_stb(b, *(vucp)addr);
- mb();
- }
- __EXTERN_INLINE u16 titan_inw(unsigned long addr)
- {
- addr += TITAN_IO_BIAS;
- return __kernel_ldwu(*(vusp)addr);
- }
- __EXTERN_INLINE void titan_outw(u16 b, unsigned long addr)
- {
- addr += TITAN_IO_BIAS;
- __kernel_stw(b, *(vusp)addr);
- mb();
- }
- __EXTERN_INLINE u32 titan_inl(unsigned long addr)
- {
- addr += TITAN_IO_BIAS;
- return *(vuip)addr;
- }
- __EXTERN_INLINE void titan_outl(u32 b, unsigned long addr)
- {
- addr += TITAN_IO_BIAS;
- *(vuip)addr = b;
- mb();
- }
- /*
- * Memory functions. all accesses are done through linear space.
- */
- __EXTERN_INLINE unsigned long titan_ioremap(unsigned long addr,
- unsigned long size
- __attribute__((unused)))
- {
- return addr + TITAN_MEM_BIAS;
- }
- __EXTERN_INLINE void titan_iounmap(unsigned long addr)
- {
- return;
- }
- __EXTERN_INLINE int titan_is_ioaddr(unsigned long addr)
- {
- return addr >= TITAN_BASE;
- }
- __EXTERN_INLINE u8 titan_readb(unsigned long addr)
- {
- return __kernel_ldbu(*(vucp)addr);
- }
- __EXTERN_INLINE u16 titan_readw(unsigned long addr)
- {
- return __kernel_ldwu(*(vusp)addr);
- }
- __EXTERN_INLINE u32 titan_readl(unsigned long addr)
- {
- return (*(vuip)addr) & 0xffffffff;
- }
- __EXTERN_INLINE u64 titan_readq(unsigned long addr)
- {
- return *(vulp)addr;
- }
- __EXTERN_INLINE void titan_writeb(u8 b, unsigned long addr)
- {
- __kernel_stb(b, *(vucp)addr);
- }
- __EXTERN_INLINE void titan_writew(u16 b, unsigned long addr)
- {
- __kernel_stw(b, *(vusp)addr);
- }
- __EXTERN_INLINE void titan_writel(u32 b, unsigned long addr)
- {
- *(vuip)addr = b;
- }
- __EXTERN_INLINE void titan_writeq(u64 b, unsigned long addr)
- {
- *(vulp)addr = b;
- }
- #undef vucp
- #undef vusp
- #undef vuip
- #undef vulp
- #ifdef __WANT_IO_DEF
- #define __inb(p) titan_inb((unsigned long)(p))
- #define __inw(p) titan_inw((unsigned long)(p))
- #define __inl(p) titan_inl((unsigned long)(p))
- #define __outb(x,p) titan_outb((x),(unsigned long)(p))
- #define __outw(x,p) titan_outw((x),(unsigned long)(p))
- #define __outl(x,p) titan_outl((x),(unsigned long)(p))
- #define __readb(a) titan_readb((unsigned long)(a))
- #define __readw(a) titan_readw((unsigned long)(a))
- #define __readl(a) titan_readl((unsigned long)(a))
- #define __readq(a) titan_readq((unsigned long)(a))
- #define __writeb(x,a) titan_writeb((x),(unsigned long)(a))
- #define __writew(x,a) titan_writew((x),(unsigned long)(a))
- #define __writel(x,a) titan_writel((x),(unsigned long)(a))
- #define __writeq(x,a) titan_writeq((x),(unsigned long)(a))
- #define __ioremap(a,s) titan_ioremap((unsigned long)(a),(s))
- #define __iounmap(a) titan_iounmap((unsigned long)(a))
- #define __is_ioaddr(a) titan_is_ioaddr((unsigned long)(a))
- #define inb(port) __inb((port))
- #define inw(port) __inw((port))
- #define inl(port) __inl((port))
- #define outb(v, port) __outb((v),(port))
- #define outw(v, port) __outw((v),(port))
- #define outl(v, port) __outl((v),(port))
- #define __raw_readb(a) __readb((unsigned long)(a))
- #define __raw_readw(a) __readw((unsigned long)(a))
- #define __raw_readl(a) __readl((unsigned long)(a))
- #define __raw_readq(a) __readq((unsigned long)(a))
- #define __raw_writeb(v,a) __writeb((v),(unsigned long)(a))
- #define __raw_writew(v,a) __writew((v),(unsigned long)(a))
- #define __raw_writel(v,a) __writel((v),(unsigned long)(a))
- #define __raw_writeq(v,a) __writeq((v),(unsigned long)(a))
- #endif /* __WANT_IO_DEF */
- #ifdef __IO_EXTERN_INLINE
- #undef __EXTERN_INLINE
- #undef __IO_EXTERN_INLINE
- #endif
- #endif /* __KERNEL__ */
- #endif /* __ALPHA_TITAN__H__ */