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linux-headers-6.8.0-124
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asm
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pci
✏️ /usr/src/linux-headers-6.8.0-124/arch/mips/include/asm/pci/bridge.h
✕ Tutup
/* * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive * for more details. * * bridge.h - bridge chip header file, derived from IRIX <sys/PCI/bridge.h>, * revision 1.76. * * Copyright (C) 1996, 1999 Silcon Graphics, Inc. * Copyright (C) 1999 Ralf Baechle (ralf@gnu.org) */ #ifndef _ASM_PCI_BRIDGE_H #define _ASM_PCI_BRIDGE_H #include <linux/types.h> #include <linux/pci.h> #include <asm/xtalk/xwidget.h> /* generic widget header */ #include <asm/sn/types.h> /* I/O page size */ #define IOPFNSHIFT 12 /* 4K per mapped page */ #define IOPGSIZE (1 << IOPFNSHIFT) #define IOPG(x) ((x) >> IOPFNSHIFT) #define IOPGOFF(x) ((x) & (IOPGSIZE-1)) /* Bridge RAM sizes */ #define BRIDGE_ATE_RAM_SIZE 0x00000400 /* 1kB ATE RAM */ #define BRIDGE_CONFIG_BASE 0x20000 #define BRIDGE_CONFIG1_BASE 0x28000 #define BRIDGE_CONFIG_END 0x30000 #define BRIDGE_CONFIG_SLOT_SIZE 0x1000 #define BRIDGE_SSRAM_512K 0x00080000 /* 512kB */ #define BRIDGE_SSRAM_128K 0x00020000 /* 128kB */ #define BRIDGE_SSRAM_64K 0x00010000 /* 64kB */ #define BRIDGE_SSRAM_0K 0x00000000 /* 0kB */ /* ======================================================================== * Bridge address map */ #ifndef __ASSEMBLY__ #define ATE_V 0x01 #define ATE_CO 0x02 #define ATE_PREC 0x04 #define ATE_PREF 0x08 #define ATE_BAR 0x10 #define ATE_PFNSHIFT 12 #define ATE_TIDSHIFT 8 #define ATE_RMFSHIFT 48 #define mkate(xaddr, xid, attr) (((xaddr) & 0x0000fffffffff000ULL) | \ ((xid)<<ATE_TIDSHIFT) | \ (attr)) #define BRIDGE_INTERNAL_ATES 128 /* * It is generally preferred that hardware registers on the bridge * are located from C code via this structure. * * Generated from Bridge spec dated 04oct95 */ struct bridge_regs { /* Local Registers 0x000000-0x00FFFF */ /* standard widget configuration 0x000000-0x000057 */ widget_cfg_t b_widget; /* 0x000000 */ /* helper fieldnames for accessing bridge widget */ #define b_wid_id b_widget.w_id #define b_wid_stat b_widget.w_status #define b_wid_err_upper b_widget.w_err_upper_addr #define b_wid_err_lower b_widget.w_err_lower_addr #define b_wid_control b_widget.w_control #define b_wid_req_timeout b_widget.w_req_timeout #define b_wid_int_upper b_widget.w_intdest_upper_addr #define b_wid_int_lower b_widget.w_intdest_lower_addr #define b_wid_err_cmdword b_widget.w_err_cmd_word #define b_wid_llp b_widget.w_llp_cfg #define b_wid_tflush b_widget.w_tflush /* bridge-specific widget configuration 0x000058-0x00007F */ u32 _pad_000058; u32 b_wid_aux_err; /* 0x00005C */ u32 _pad_000060; u32 b_wid_resp_upper; /* 0x000064 */ u32 _pad_000068; u32 b_wid_resp_lower; /* 0x00006C */ u32 _pad_000070; u32 b_wid_tst_pin_ctrl; /* 0x000074 */ u32 _pad_000078[2]; /* PMU & Map 0x000080-0x00008F */ u32 _pad_000080; u32 b_dir_map; /* 0x000084 */ u32 _pad_000088[2]; /* SSRAM 0x000090-0x00009F */ u32 _pad_000090; u32 b_ram_perr; /* 0x000094 */ u32 _pad_000098[2]; /* Arbitration 0x0000A0-0x0000AF */ u32 _pad_0000A0; u32 b_arb; /* 0x0000A4 */ u32 _pad_0000A8[2]; /* Number In A Can 0x0000B0-0x0000BF */ u32 _pad_0000B0; u32 b_nic; /* 0x0000B4 */ u32 _pad_0000B8[2]; /* PCI/GIO 0x0000C0-0x0000FF */ u32 _pad_0000C0; u32 b_bus_timeout; /* 0x0000C4 */ #define b_pci_bus_timeout b_bus_timeout u32 _pad_0000C8; u32 b_pci_cfg; /* 0x0000CC */ u32 _pad_0000D0; u32 b_pci_err_upper; /* 0x0000D4 */ u32 _pad_0000D8; u32 b_pci_err_lower; /* 0x0000DC */ u32 _pad_0000E0[8]; #define b_gio_err_lower b_pci_err_lower #define b_gio_err_upper b_pci_err_upper /* Interrupt 0x000100-0x0001FF */ u32 _pad_000100; u32 b_int_status; /* 0x000104 */ u32 _pad_000108; u32 b_int_enable; /* 0x00010C */ u32 _pad_000110; u32 b_int_rst_stat; /* 0x000114 */ u32 _pad_000118; u32 b_int_mode; /* 0x00011C */ u32 _pad_000120; u32 b_int_device; /* 0x000124 */ u32 _pad_000128; u32 b_int_host_err; /* 0x00012C */ struct { u32 __pad; /* 0x0001{30,,,68} */ u32 addr; /* 0x0001{34,,,6C} */ } b_int_addr[8]; /* 0x000130 */ u32 _pad_000170[36]; /* Device 0x000200-0x0003FF */ struct { u32 __pad; /* 0x0002{00,,,38} */ u32 reg; /* 0x0002{04,,,3C} */ } b_device[8]; /* 0x000200 */ struct { u32 __pad; /* 0x0002{40,,,78} */ u32 reg; /* 0x0002{44,,,7C} */ } b_wr_req_buf[8]; /* 0x000240 */ struct { u32 __pad; /* 0x0002{80,,,88} */ u32 reg; /* 0x0002{84,,,8C} */ } b_rrb_map[2]; /* 0x000280 */ #define b_even_resp b_rrb_map[0].reg /* 0x000284 */ #define b_odd_resp b_rrb_map[1].reg /* 0x00028C */ u32 _pad_000290; u32 b_resp_status; /* 0x000294 */ u32 _pad_000298; u32 b_resp_clear; /* 0x00029C */ u32 _pad_0002A0[24]; char _pad_000300[0x10000 - 0x000300]; /* Internal Address Translation Entry RAM 0x010000-0x0103FF */ union { u64 wr; /* write-only */ struct { u32 _p_pad; u32 rd; /* read-only */ } hi; } b_int_ate_ram[128]; char _pad_010400[0x11000 - 0x010400]; /* Internal Address Translation Entry RAM LOW 0x011000-0x0113FF */ struct { u32 _p_pad; u32 rd; /* read-only */ } b_int_ate_ram_lo[128]; char _pad_011400[0x20000 - 0x011400]; /* PCI Device Configuration Spaces 0x020000-0x027FFF */ union { /* make all access sizes available. */ u8 c[0x1000 / 1]; u16 s[0x1000 / 2]; u32 l[0x1000 / 4]; u64 d[0x1000 / 8]; union { u8 c[0x100 / 1]; u16 s[0x100 / 2]; u32 l[0x100 / 4]; u64 d[0x100 / 8]; } f[8]; } b_type0_cfg_dev[8]; /* 0x020000 */ /* PCI Type 1 Configuration Space 0x028000-0x028FFF */ union { /* make all access sizes available. */ u8 c[0x1000 / 1]; u16 s[0x1000 / 2]; u32 l[0x1000 / 4]; u64 d[0x1000 / 8]; } b_type1_cfg; /* 0x028000-0x029000 */ char _pad_029000[0x007000]; /* 0x029000-0x030000 */ /* PCI Interrupt Acknowledge Cycle 0x030000 */ union { u8 c[8 / 1]; u16 s[8 / 2]; u32 l[8 / 4]; u64 d[8 / 8]; } b_pci_iack; /* 0x030000 */ u8 _pad_030007[0x04fff8]; /* 0x030008-0x07FFFF */ /* External Address Translation Entry RAM 0x080000-0x0FFFFF */ u64 b_ext_ate_ram[0x10000]; /* Reserved 0x100000-0x1FFFFF */ char _pad_100000[0x200000-0x100000]; /* PCI/GIO Device Spaces 0x200000-0xBFFFFF */ union { /* make all access sizes available. */ u8 c[0x100000 / 1]; u16 s[0x100000 / 2]; u32 l[0x100000 / 4]; u64 d[0x100000 / 8]; } b_devio_raw[10]; /* 0x200000 */ /* b_devio macro is a bit strange; it reflects the * fact that the Bridge ASIC provides 2M for the * first two DevIO windows and 1M for the other six. */ #define b_devio(n) b_devio_raw[((n)<2)?(n*2):(n+2)] /* External Flash Proms 1,0 0xC00000-0xFFFFFF */ union { /* make all access sizes available. */ u8 c[0x400000 / 1]; /* read-only */ u16 s[0x400000 / 2]; /* read-write */ u32 l[0x400000 / 4]; /* read-only */ u64 d[0x400000 / 8]; /* read-only */ } b_external_flash; /* 0xC00000 */ }; /* * Field formats for Error Command Word and Auxiliary Error Command Word * of bridge. */ struct bridge_err_cmdword { union { u32 cmd_word; struct { u32 didn:4, /* Destination ID */ sidn:4, /* Source ID */ pactyp:4, /* Packet type */ tnum:5, /* Trans Number */ coh:1, /* Coh Transaction */ ds:2, /* Data size */ gbr:1, /* GBR enable */ vbpm:1, /* VBPM message */ error:1, /* Error occurred */ barr:1, /* Barrier op */ rsvd:8; } berr_st; } berr_un; }; #define berr_field berr_un.berr_st #endif /* !__ASSEMBLY__ */ /* * The values of these macros can and should be crosschecked * regularly against the offsets of the like-named fields * within the bridge_regs structure above. */ /* Byte offset macros for Bridge internal registers */ #define BRIDGE_WID_ID WIDGET_ID #define BRIDGE_WID_STAT WIDGET_STATUS #define BRIDGE_WID_ERR_UPPER WIDGET_ERR_UPPER_ADDR #define BRIDGE_WID_ERR_LOWER WIDGET_ERR_LOWER_ADDR #define BRIDGE_WID_CONTROL WIDGET_CONTROL #define BRIDGE_WID_REQ_TIMEOUT WIDGET_REQ_TIMEOUT #define BRIDGE_WID_INT_UPPER WIDGET_INTDEST_UPPER_ADDR #define BRIDGE_WID_INT_LOWER WIDGET_INTDEST_LOWER_ADDR #define BRIDGE_WID_ERR_CMDWORD WIDGET_ERR_CMD_WORD #define BRIDGE_WID_LLP WIDGET_LLP_CFG #define BRIDGE_WID_TFLUSH WIDGET_TFLUSH #define BRIDGE_WID_AUX_ERR 0x00005C /* Aux Error Command Word */ #define BRIDGE_WID_RESP_UPPER 0x000064 /* Response Buf Upper Addr */ #define BRIDGE_WID_RESP_LOWER 0x00006C /* Response Buf Lower Addr */ #define BRIDGE_WID_TST_PIN_CTRL 0x000074 /* Test pin control */ #define BRIDGE_DIR_MAP 0x000084 /* Direct Map reg */ #define BRIDGE_RAM_PERR 0x000094 /* SSRAM Parity Error */ #define BRIDGE_ARB 0x0000A4 /* Arbitration Priority reg */ #define BRIDGE_NIC 0x0000B4 /* Number In A Can */ #define BRIDGE_BUS_TIMEOUT 0x0000C4 /* Bus Timeout Register */ #define BRIDGE_PCI_BUS_TIMEOUT BRIDGE_BUS_TIMEOUT #define BRIDGE_PCI_CFG 0x0000CC /* PCI Type 1 Config reg */ #define BRIDGE_PCI_ERR_UPPER 0x0000D4 /* PCI error Upper Addr */ #define BRIDGE_PCI_ERR_LOWER 0x0000DC /* PCI error Lower Addr */ #define BRIDGE_INT_STATUS 0x000104 /* Interrupt Status */ #define BRIDGE_INT_ENABLE 0x00010C /* Interrupt Enables */ #define BRIDGE_INT_RST_STAT 0x000114 /* Reset Intr Status */ #define BRIDGE_INT_MODE 0x00011C /* Interrupt Mode */ #define BRIDGE_INT_DEVICE 0x000124 /* Interrupt Device */ #define BRIDGE_INT_HOST_ERR 0x00012C /* Host Error Field */ #define BRIDGE_INT_ADDR0 0x000134 /* Host Address Reg */ #define BRIDGE_INT_ADDR_OFF 0x000008 /* Host Addr offset (1..7) */ #define BRIDGE_INT_ADDR(x) (BRIDGE_INT_ADDR0+(x)*BRIDGE_INT_ADDR_OFF) #define BRIDGE_DEVICE0 0x000204 /* Device 0 */ #define BRIDGE_DEVICE_OFF 0x000008 /* Device offset (1..7) */ #define BRIDGE_DEVICE(x) (BRIDGE_DEVICE0+(x)*BRIDGE_DEVICE_OFF) #define BRIDGE_WR_REQ_BUF0 0x000244 /* Write Request Buffer 0 */ #define BRIDGE_WR_REQ_BUF_OFF 0x000008 /* Buffer Offset (1..7) */ #define BRIDGE_WR_REQ_BUF(x) (BRIDGE_WR_REQ_BUF0+(x)*BRIDGE_WR_REQ_BUF_OFF) #define BRIDGE_EVEN_RESP 0x000284 /* Even Device Response Buf */ #define BRIDGE_ODD_RESP 0x00028C /* Odd Device Response Buf */ #define BRIDGE_RESP_STATUS 0x000294 /* Read Response Status reg */ #define BRIDGE_RESP_CLEAR 0x00029C /* Read Response Clear reg */ /* Byte offset macros for Bridge I/O space */ #define BRIDGE_ATE_RAM 0x00010000 /* Internal Addr Xlat Ram */ #define BRIDGE_TYPE0_CFG_DEV0 0x00020000 /* Type 0 Cfg, Device 0 */ #define BRIDGE_TYPE0_CFG_SLOT_OFF 0x00001000 /* Type 0 Cfg Slot Offset (1..7) */ #define BRIDGE_TYPE0_CFG_FUNC_OFF 0x00000100 /* Type 0 Cfg Func Offset (1..7) */ #define BRIDGE_TYPE0_CFG_DEV(s) (BRIDGE_TYPE0_CFG_DEV0+\ (s)*BRIDGE_TYPE0_CFG_SLOT_OFF) #define BRIDGE_TYPE0_CFG_DEVF(s, f) (BRIDGE_TYPE0_CFG_DEV0+\ (s)*BRIDGE_TYPE0_CFG_SLOT_OFF+\ (f)*BRIDGE_TYPE0_CFG_FUNC_OFF) #define BRIDGE_TYPE1_CFG 0x00028000 /* Type 1 Cfg space */ #define BRIDGE_PCI_IACK 0x00030000 /* PCI Interrupt Ack */ #define BRIDGE_EXT_SSRAM 0x00080000 /* Extern SSRAM (ATE) */ /* Byte offset macros for Bridge device IO spaces */ #define BRIDGE_DEV_CNT 8 /* Up to 8 devices per bridge */ #define BRIDGE_DEVIO0 0x00200000 /* Device IO 0 Addr */ #define BRIDGE_DEVIO1 0x00400000 /* Device IO 1 Addr */ #define BRIDGE_DEVIO2 0x00600000 /* Device IO 2 Addr */ #define BRIDGE_DEVIO_OFF 0x00100000 /* Device IO Offset (3..7) */ #define BRIDGE_DEVIO_2MB 0x00200000 /* Device IO Offset (0..1) */ #define BRIDGE_DEVIO_1MB 0x00100000 /* Device IO Offset (2..7) */ #define BRIDGE_DEVIO(x) ((x)<=1 ? BRIDGE_DEVIO0+(x)*BRIDGE_DEVIO_2MB : BRIDGE_DEVIO2+((x)-2)*BRIDGE_DEVIO_1MB) #define BRIDGE_EXTERNAL_FLASH 0x00C00000 /* External Flash PROMS */ /* ======================================================================== * Bridge register bit field definitions */ /* Widget part number of bridge */ #define BRIDGE_WIDGET_PART_NUM 0xc002 #define XBRIDGE_WIDGET_PART_NUM 0xd002 /* Manufacturer of bridge */ #define BRIDGE_WIDGET_MFGR_NUM 0x036 #define XBRIDGE_WIDGET_MFGR_NUM 0x024 /* Revision numbers for known Bridge revisions */ #define BRIDGE_REV_A 0x1 #define BRIDGE_REV_B 0x2 #define BRIDGE_REV_C 0x3 #define BRIDGE_REV_D 0x4 /* Bridge widget status register bits definition */ #define BRIDGE_STAT_LLP_REC_CNT (0xFFu << 24) #define BRIDGE_STAT_LLP_TX_CNT (0xFF << 16) #define BRIDGE_STAT_FLASH_SELECT (0x1 << 6) #define BRIDGE_STAT_PCI_GIO_N (0x1 << 5) #define BRIDGE_STAT_PENDING (0x1F << 0) /* Bridge widget control register bits definition */ #define BRIDGE_CTRL_FLASH_WR_EN (0x1ul << 31) #define BRIDGE_CTRL_EN_CLK50 (0x1 << 30) #define BRIDGE_CTRL_EN_CLK40 (0x1 << 29) #define BRIDGE_CTRL_EN_CLK33 (0x1 << 28) #define BRIDGE_CTRL_RST(n) ((n) << 24) #define BRIDGE_CTRL_RST_MASK (BRIDGE_CTRL_RST(0xF)) #define BRIDGE_CTRL_RST_PIN(x) (BRIDGE_CTRL_RST(0x1 << (x))) #define BRIDGE_CTRL_IO_SWAP (0x1 << 23) #define BRIDGE_CTRL_MEM_SWAP (0x1 << 22) #define BRIDGE_CTRL_PAGE_SIZE (0x1 << 21) #define BRIDGE_CTRL_SS_PAR_BAD (0x1 << 20) #define BRIDGE_CTRL_SS_PAR_EN (0x1 << 19) #define BRIDGE_CTRL_SSRAM_SIZE(n) ((n) << 17) #define BRIDGE_CTRL_SSRAM_SIZE_MASK (BRIDGE_CTRL_SSRAM_SIZE(0x3)) #define BRIDGE_CTRL_SSRAM_512K (BRIDGE_CTRL_SSRAM_SIZE(0x3)) #define BRIDGE_CTRL_SSRAM_128K (BRIDGE_CTRL_SSRAM_SIZE(0x2)) #define BRIDGE_CTRL_SSRAM_64K (BRIDGE_CTRL_SSRAM_SIZE(0x1)) #define BRIDGE_CTRL_SSRAM_1K (BRIDGE_CTRL_SSRAM_SIZE(0x0)) #define BRIDGE_CTRL_F_BAD_PKT (0x1 << 16) #define BRIDGE_CTRL_LLP_XBAR_CRD(n) ((n) << 12) #define BRIDGE_CTRL_LLP_XBAR_CRD_MASK (BRIDGE_CTRL_LLP_XBAR_CRD(0xf)) #define BRIDGE_CTRL_CLR_RLLP_CNT (0x1 << 11) #define BRIDGE_CTRL_CLR_TLLP_CNT (0x1 << 10) #define BRIDGE_CTRL_SYS_END (0x1 << 9) #define BRIDGE_CTRL_MAX_TRANS(n) ((n) << 4) #define BRIDGE_CTRL_MAX_TRANS_MASK (BRIDGE_CTRL_MAX_TRANS(0x1f)) #define BRIDGE_CTRL_WIDGET_ID(n) ((n) << 0) #define BRIDGE_CTRL_WIDGET_ID_MASK (BRIDGE_CTRL_WIDGET_ID(0xf)) /* Bridge Response buffer Error Upper Register bit fields definition */ #define BRIDGE_RESP_ERRUPPR_DEVNUM_SHFT (20) #define BRIDGE_RESP_ERRUPPR_DEVNUM_MASK (0x7 << BRIDGE_RESP_ERRUPPR_DEVNUM_SHFT) #define BRIDGE_RESP_ERRUPPR_BUFNUM_SHFT (16) #define BRIDGE_RESP_ERRUPPR_BUFNUM_MASK (0xF << BRIDGE_RESP_ERRUPPR_BUFNUM_SHFT) #define BRIDGE_RESP_ERRRUPPR_BUFMASK (0xFFFF) #define BRIDGE_RESP_ERRUPPR_BUFNUM(x) \ (((x) & BRIDGE_RESP_ERRUPPR_BUFNUM_MASK) >> \ BRIDGE_RESP_ERRUPPR_BUFNUM_SHFT) #define BRIDGE_RESP_ERRUPPR_DEVICE(x) \ (((x) & BRIDGE_RESP_ERRUPPR_DEVNUM_MASK) >> \ BRIDGE_RESP_ERRUPPR_DEVNUM_SHFT) /* Bridge direct mapping register bits definition */ #define BRIDGE_DIRMAP_W_ID_SHFT 20 #define BRIDGE_DIRMAP_W_ID (0xf << BRIDGE_DIRMAP_W_ID_SHFT) #define BRIDGE_DIRMAP_RMF_64 (0x1 << 18) #define BRIDGE_DIRMAP_ADD512 (0x1 << 17) #define BRIDGE_DIRMAP_OFF (0x1ffff << 0) #define BRIDGE_DIRMAP_OFF_ADDRSHFT (31) /* lsbit of DIRMAP_OFF is xtalk address bit 31 */ /* Bridge Arbitration register bits definition */ #define BRIDGE_ARB_REQ_WAIT_TICK(x) ((x) << 16) #define BRIDGE_ARB_REQ_WAIT_TICK_MASK BRIDGE_ARB_REQ_WAIT_TICK(0x3) #define BRIDGE_ARB_REQ_WAIT_EN(x) ((x) << 8) #define BRIDGE_ARB_REQ_WAIT_EN_MASK BRIDGE_ARB_REQ_WAIT_EN(0xff) #define BRIDGE_ARB_FREEZE_GNT (1 << 6) #define BRIDGE_ARB_HPRI_RING_B2 (1 << 5) #define BRIDGE_ARB_HPRI_RING_B1 (1 << 4) #define BRIDGE_ARB_HPRI_RING_B0 (1 << 3) #define BRIDGE_ARB_LPRI_RING_B2 (1 << 2) #define BRIDGE_ARB_LPRI_RING_B1 (1 << 1) #define BRIDGE_ARB_LPRI_RING_B0 (1 << 0) /* Bridge Bus time-out register bits definition */ #define BRIDGE_BUS_PCI_RETRY_HLD(x) ((x) << 16) #define BRIDGE_BUS_PCI_RETRY_HLD_MASK BRIDGE_BUS_PCI_RETRY_HLD(0x1f) #define BRIDGE_BUS_GIO_TIMEOUT (1 << 12) #define BRIDGE_BUS_PCI_RETRY_CNT(x) ((x) << 0) #define BRIDGE_BUS_PCI_RETRY_MASK BRIDGE_BUS_PCI_RETRY_CNT(0x3ff) /* Bridge interrupt status register bits definition */ #define BRIDGE_ISR_MULTI_ERR (0x1u << 31) #define BRIDGE_ISR_PMU_ESIZE_FAULT (0x1 << 30) #define BRIDGE_ISR_UNEXP_RESP (0x1 << 29) #define BRIDGE_ISR_BAD_XRESP_PKT (0x1 << 28) #define BRIDGE_ISR_BAD_XREQ_PKT (0x1 << 27) #define BRIDGE_ISR_RESP_XTLK_ERR (0x1 << 26) #define BRIDGE_ISR_REQ_XTLK_ERR (0x1 << 25) #define BRIDGE_ISR_INVLD_ADDR (0x1 << 24) #define BRIDGE_ISR_UNSUPPORTED_XOP (0x1 << 23) #define BRIDGE_ISR_XREQ_FIFO_OFLOW (0x1 << 22) #define BRIDGE_ISR_LLP_REC_SNERR (0x1 << 21) #define BRIDGE_ISR_LLP_REC_CBERR (0x1 << 20) #define BRIDGE_ISR_LLP_RCTY (0x1 << 19) #define BRIDGE_ISR_LLP_TX_RETRY (0x1 << 18) #define BRIDGE_ISR_LLP_TCTY (0x1 << 17) #define BRIDGE_ISR_SSRAM_PERR (0x1 << 16) #define BRIDGE_ISR_PCI_ABORT (0x1 << 15) #define BRIDGE_ISR_PCI_PARITY (0x1 << 14) #define BRIDGE_ISR_PCI_SERR (0x1 << 13) #define BRIDGE_ISR_PCI_PERR (0x1 << 12) #define BRIDGE_ISR_PCI_MST_TIMEOUT (0x1 << 11) #define BRIDGE_ISR_GIO_MST_TIMEOUT BRIDGE_ISR_PCI_MST_TIMEOUT #define BRIDGE_ISR_PCI_RETRY_CNT (0x1 << 10) #define BRIDGE_ISR_XREAD_REQ_TIMEOUT (0x1 << 9) #define BRIDGE_ISR_GIO_B_ENBL_ERR (0x1 << 8) #define BRIDGE_ISR_INT_MSK (0xff << 0) #define BRIDGE_ISR_INT(x) (0x1 << (x)) #define BRIDGE_ISR_LINK_ERROR \ (BRIDGE_ISR_LLP_REC_SNERR|BRIDGE_ISR_LLP_REC_CBERR| \ BRIDGE_ISR_LLP_RCTY|BRIDGE_ISR_LLP_TX_RETRY| \ BRIDGE_ISR_LLP_TCTY) #define BRIDGE_ISR_PCIBUS_PIOERR \ (BRIDGE_ISR_PCI_MST_TIMEOUT|BRIDGE_ISR_PCI_ABORT) #define BRIDGE_ISR_PCIBUS_ERROR \ (BRIDGE_ISR_PCIBUS_PIOERR|BRIDGE_ISR_PCI_PERR| \ BRIDGE_ISR_PCI_SERR|BRIDGE_ISR_PCI_RETRY_CNT| \ BRIDGE_ISR_PCI_PARITY) #define BRIDGE_ISR_XTALK_ERROR \ (BRIDGE_ISR_XREAD_REQ_TIMEOUT|BRIDGE_ISR_XREQ_FIFO_OFLOW|\ BRIDGE_ISR_UNSUPPORTED_XOP|BRIDGE_ISR_INVLD_ADDR| \ BRIDGE_ISR_REQ_XTLK_ERR|BRIDGE_ISR_RESP_XTLK_ERR| \ BRIDGE_ISR_BAD_XREQ_PKT|BRIDGE_ISR_BAD_XRESP_PKT| \ BRIDGE_ISR_UNEXP_RESP) #define BRIDGE_ISR_ERRORS \ (BRIDGE_ISR_LINK_ERROR|BRIDGE_ISR_PCIBUS_ERROR| \ BRIDGE_ISR_XTALK_ERROR|BRIDGE_ISR_SSRAM_PERR| \ BRIDGE_ISR_PMU_ESIZE_FAULT) /* * List of Errors which are fatal and kill the system */ #define BRIDGE_ISR_ERROR_FATAL \ ((BRIDGE_ISR_XTALK_ERROR & ~BRIDGE_ISR_XREAD_REQ_TIMEOUT)|\ BRIDGE_ISR_PCI_SERR|BRIDGE_ISR_PCI_PARITY ) #define BRIDGE_ISR_ERROR_DUMP \ (BRIDGE_ISR_PCIBUS_ERROR|BRIDGE_ISR_PMU_ESIZE_FAULT| \ BRIDGE_ISR_XTALK_ERROR|BRIDGE_ISR_SSRAM_PERR) /* Bridge interrupt enable register bits definition */ #define BRIDGE_IMR_UNEXP_RESP BRIDGE_ISR_UNEXP_RESP #define BRIDGE_IMR_PMU_ESIZE_FAULT BRIDGE_ISR_PMU_ESIZE_FAULT #define BRIDGE_IMR_BAD_XRESP_PKT BRIDGE_ISR_BAD_XRESP_PKT #define BRIDGE_IMR_BAD_XREQ_PKT BRIDGE_ISR_BAD_XREQ_PKT #define BRIDGE_IMR_RESP_XTLK_ERR BRIDGE_ISR_RESP_XTLK_ERR #define BRIDGE_IMR_REQ_XTLK_ERR BRIDGE_ISR_REQ_XTLK_ERR #define BRIDGE_IMR_INVLD_ADDR BRIDGE_ISR_INVLD_ADDR #define BRIDGE_IMR_UNSUPPORTED_XOP BRIDGE_ISR_UNSUPPORTED_XOP #define BRIDGE_IMR_XREQ_FIFO_OFLOW BRIDGE_ISR_XREQ_FIFO_OFLOW #define BRIDGE_IMR_LLP_REC_SNERR BRIDGE_ISR_LLP_REC_SNERR #define BRIDGE_IMR_LLP_REC_CBERR BRIDGE_ISR_LLP_REC_CBERR #define BRIDGE_IMR_LLP_RCTY BRIDGE_ISR_LLP_RCTY #define BRIDGE_IMR_LLP_TX_RETRY BRIDGE_ISR_LLP_TX_RETRY #define BRIDGE_IMR_LLP_TCTY BRIDGE_ISR_LLP_TCTY #define BRIDGE_IMR_SSRAM_PERR BRIDGE_ISR_SSRAM_PERR #define BRIDGE_IMR_PCI_ABORT BRIDGE_ISR_PCI_ABORT #define BRIDGE_IMR_PCI_PARITY BRIDGE_ISR_PCI_PARITY #define BRIDGE_IMR_PCI_SERR BRIDGE_ISR_PCI_SERR #define BRIDGE_IMR_PCI_PERR BRIDGE_ISR_PCI_PERR #define BRIDGE_IMR_PCI_MST_TIMEOUT BRIDGE_ISR_PCI_MST_TIMEOUT #define BRIDGE_IMR_GIO_MST_TIMEOUT BRIDGE_ISR_GIO_MST_TIMEOUT #define BRIDGE_IMR_PCI_RETRY_CNT BRIDGE_ISR_PCI_RETRY_CNT #define BRIDGE_IMR_XREAD_REQ_TIMEOUT BRIDGE_ISR_XREAD_REQ_TIMEOUT #define BRIDGE_IMR_GIO_B_ENBL_ERR BRIDGE_ISR_GIO_B_ENBL_ERR #define BRIDGE_IMR_INT_MSK BRIDGE_ISR_INT_MSK #define BRIDGE_IMR_INT(x) BRIDGE_ISR_INT(x) /* Bridge interrupt reset register bits definition */ #define BRIDGE_IRR_MULTI_CLR (0x1 << 6) #define BRIDGE_IRR_CRP_GRP_CLR (0x1 << 5) #define BRIDGE_IRR_RESP_BUF_GRP_CLR (0x1 << 4) #define BRIDGE_IRR_REQ_DSP_GRP_CLR (0x1 << 3) #define BRIDGE_IRR_LLP_GRP_CLR (0x1 << 2) #define BRIDGE_IRR_SSRAM_GRP_CLR (0x1 << 1) #define BRIDGE_IRR_PCI_GRP_CLR (0x1 << 0) #define BRIDGE_IRR_GIO_GRP_CLR (0x1 << 0) #define BRIDGE_IRR_ALL_CLR 0x7f #define BRIDGE_IRR_CRP_GRP (BRIDGE_ISR_UNEXP_RESP | \ BRIDGE_ISR_XREQ_FIFO_OFLOW) #define BRIDGE_IRR_RESP_BUF_GRP (BRIDGE_ISR_BAD_XRESP_PKT | \ BRIDGE_ISR_RESP_XTLK_ERR | \ BRIDGE_ISR_XREAD_REQ_TIMEOUT) #define BRIDGE_IRR_REQ_DSP_GRP (BRIDGE_ISR_UNSUPPORTED_XOP | \ BRIDGE_ISR_BAD_XREQ_PKT | \ BRIDGE_ISR_REQ_XTLK_ERR | \ BRIDGE_ISR_INVLD_ADDR) #define BRIDGE_IRR_LLP_GRP (BRIDGE_ISR_LLP_REC_SNERR | \ BRIDGE_ISR_LLP_REC_CBERR | \ BRIDGE_ISR_LLP_RCTY | \ BRIDGE_ISR_LLP_TX_RETRY | \ BRIDGE_ISR_LLP_TCTY) #define BRIDGE_IRR_SSRAM_GRP (BRIDGE_ISR_SSRAM_PERR | \ BRIDGE_ISR_PMU_ESIZE_FAULT) #define BRIDGE_IRR_PCI_GRP (BRIDGE_ISR_PCI_ABORT | \ BRIDGE_ISR_PCI_PARITY | \ BRIDGE_ISR_PCI_SERR | \ BRIDGE_ISR_PCI_PERR | \ BRIDGE_ISR_PCI_MST_TIMEOUT | \ BRIDGE_ISR_PCI_RETRY_CNT) #define BRIDGE_IRR_GIO_GRP (BRIDGE_ISR_GIO_B_ENBL_ERR | \ BRIDGE_ISR_GIO_MST_TIMEOUT) /* Bridge INT_DEV register bits definition */ #define BRIDGE_INT_DEV_SHFT(n) ((n)*3) #define BRIDGE_INT_DEV_MASK(n) (0x7 << BRIDGE_INT_DEV_SHFT(n)) #define BRIDGE_INT_DEV_SET(_dev, _line) (_dev << BRIDGE_INT_DEV_SHFT(_line)) /* Bridge interrupt(x) register bits definition */ #define BRIDGE_INT_ADDR_HOST 0x0003FF00 #define BRIDGE_INT_ADDR_FLD 0x000000FF #define BRIDGE_TMO_PCI_RETRY_HLD_MASK 0x1f0000 #define BRIDGE_TMO_GIO_TIMEOUT_MASK 0x001000 #define BRIDGE_TMO_PCI_RETRY_CNT_MASK 0x0003ff #define BRIDGE_TMO_PCI_RETRY_CNT_MAX 0x3ff /* * The NASID should be shifted by this amount and stored into the * interrupt(x) register. */ #define BRIDGE_INT_ADDR_NASID_SHFT 8 /* * The BRIDGE_INT_ADDR_DEST_IO bit should be set to send an interrupt to * memory. */ #define BRIDGE_INT_ADDR_DEST_IO (1 << 17) #define BRIDGE_INT_ADDR_DEST_MEM 0 #define BRIDGE_INT_ADDR_MASK (1 << 17) /* Bridge device(x) register bits definition */ #define BRIDGE_DEV_ERR_LOCK_EN 0x10000000 #define BRIDGE_DEV_PAGE_CHK_DIS 0x08000000 #define BRIDGE_DEV_FORCE_PCI_PAR 0x04000000 #define BRIDGE_DEV_VIRTUAL_EN 0x02000000 #define BRIDGE_DEV_PMU_WRGA_EN 0x01000000 #define BRIDGE_DEV_DIR_WRGA_EN 0x00800000 #define BRIDGE_DEV_DEV_SIZE 0x00400000 #define BRIDGE_DEV_RT 0x00200000 #define BRIDGE_DEV_SWAP_PMU 0x00100000 #define BRIDGE_DEV_SWAP_DIR 0x00080000 #define BRIDGE_DEV_PREF 0x00040000 #define BRIDGE_DEV_PRECISE 0x00020000 #define BRIDGE_DEV_COH 0x00010000 #define BRIDGE_DEV_BARRIER 0x00008000 #define BRIDGE_DEV_GBR 0x00004000 #define BRIDGE_DEV_DEV_SWAP 0x00002000 #define BRIDGE_DEV_DEV_IO_MEM 0x00001000 #define BRIDGE_DEV_OFF_MASK 0x00000fff #define BRIDGE_DEV_OFF_ADDR_SHFT 20 #define BRIDGE_DEV_PMU_BITS (BRIDGE_DEV_PMU_WRGA_EN | \ BRIDGE_DEV_SWAP_PMU) #define BRIDGE_DEV_D32_BITS (BRIDGE_DEV_DIR_WRGA_EN | \ BRIDGE_DEV_SWAP_DIR | \ BRIDGE_DEV_PREF | \ BRIDGE_DEV_PRECISE | \ BRIDGE_DEV_COH | \ BRIDGE_DEV_BARRIER) #define BRIDGE_DEV_D64_BITS (BRIDGE_DEV_DIR_WRGA_EN | \ BRIDGE_DEV_SWAP_DIR | \ BRIDGE_DEV_COH | \ BRIDGE_DEV_BARRIER) /* Bridge Error Upper register bit field definition */ #define BRIDGE_ERRUPPR_DEVMASTER (0x1 << 20) /* Device was master */ #define BRIDGE_ERRUPPR_PCIVDEV (0x1 << 19) /* Virtual Req value */ #define BRIDGE_ERRUPPR_DEVNUM_SHFT (16) #define BRIDGE_ERRUPPR_DEVNUM_MASK (0x7 << BRIDGE_ERRUPPR_DEVNUM_SHFT) #define BRIDGE_ERRUPPR_DEVICE(err) (((err) >> BRIDGE_ERRUPPR_DEVNUM_SHFT) & 0x7) #define BRIDGE_ERRUPPR_ADDRMASK (0xFFFF) /* Bridge interrupt mode register bits definition */ #define BRIDGE_INTMODE_CLR_PKT_EN(x) (0x1 << (x)) /* this should be written to the xbow's link_control(x) register */ #define BRIDGE_CREDIT 3 /* RRB assignment register */ #define BRIDGE_RRB_EN 0x8 /* after shifting down */ #define BRIDGE_RRB_DEV 0x7 /* after shifting down */ #define BRIDGE_RRB_VDEV 0x4 /* after shifting down */ #define BRIDGE_RRB_PDEV 0x3 /* after shifting down */ /* RRB status register */ #define BRIDGE_RRB_VALID(r) (0x00010000<<(r)) #define BRIDGE_RRB_INUSE(r) (0x00000001<<(r)) /* RRB clear register */ #define BRIDGE_RRB_CLEAR(r) (0x00000001<<(r)) /* xbox system controller declarations */ #define XBOX_BRIDGE_WID 8 #define FLASH_PROM1_BASE 0xE00000 /* To read the xbox sysctlr status */ #define XBOX_RPS_EXISTS 1 << 6 /* RPS bit in status register */ #define XBOX_RPS_FAIL 1 << 4 /* RPS status bit in register */ /* ======================================================================== */ /* * Macros for Xtalk to Bridge bus (PCI/GIO) PIO * refer to section 4.2.1 of Bridge Spec for xtalk to PCI/GIO PIO mappings */ /* XTALK addresses that map into Bridge Bus addr space */ #define BRIDGE_PIO32_XTALK_ALIAS_BASE 0x000040000000L #define BRIDGE_PIO32_XTALK_ALIAS_LIMIT 0x00007FFFFFFFL #define BRIDGE_PIO64_XTALK_ALIAS_BASE 0x000080000000L #define BRIDGE_PIO64_XTALK_ALIAS_LIMIT 0x0000BFFFFFFFL #define BRIDGE_PCIIO_XTALK_ALIAS_BASE 0x000100000000L #define BRIDGE_PCIIO_XTALK_ALIAS_LIMIT 0x0001FFFFFFFFL /* Ranges of PCI bus space that can be accessed via PIO from xtalk */ #define BRIDGE_MIN_PIO_ADDR_MEM 0x00000000 /* 1G PCI memory space */ #define BRIDGE_MAX_PIO_ADDR_MEM 0x3fffffff #define BRIDGE_MIN_PIO_ADDR_IO 0x00000000 /* 4G PCI IO space */ #define BRIDGE_MAX_PIO_ADDR_IO 0xffffffff /* XTALK addresses that map into PCI addresses */ #define BRIDGE_PCI_MEM32_BASE BRIDGE_PIO32_XTALK_ALIAS_BASE #define BRIDGE_PCI_MEM32_LIMIT BRIDGE_PIO32_XTALK_ALIAS_LIMIT #define BRIDGE_PCI_MEM64_BASE BRIDGE_PIO64_XTALK_ALIAS_BASE #define BRIDGE_PCI_MEM64_LIMIT BRIDGE_PIO64_XTALK_ALIAS_LIMIT #define BRIDGE_PCI_IO_BASE BRIDGE_PCIIO_XTALK_ALIAS_BASE #define BRIDGE_PCI_IO_LIMIT BRIDGE_PCIIO_XTALK_ALIAS_LIMIT /* * Macros for Bridge bus (PCI/GIO) to Xtalk DMA */ /* Bridge Bus DMA addresses */ #define BRIDGE_LOCAL_BASE 0 #define BRIDGE_DMA_MAPPED_BASE 0x40000000 #define BRIDGE_DMA_MAPPED_SIZE 0x40000000 /* 1G Bytes */ #define BRIDGE_DMA_DIRECT_BASE 0x80000000 #define BRIDGE_DMA_DIRECT_SIZE 0x80000000 /* 2G Bytes */ #define PCI32_LOCAL_BASE BRIDGE_LOCAL_BASE /* PCI addresses of regions decoded by Bridge for DMA */ #define PCI32_MAPPED_BASE BRIDGE_DMA_MAPPED_BASE #define PCI32_DIRECT_BASE BRIDGE_DMA_DIRECT_BASE #define IS_PCI32_LOCAL(x) ((ulong_t)(x) < PCI32_MAPPED_BASE) #define IS_PCI32_MAPPED(x) ((ulong_t)(x) < PCI32_DIRECT_BASE && \ (ulong_t)(x) >= PCI32_MAPPED_BASE) #define IS_PCI32_DIRECT(x) ((ulong_t)(x) >= PCI32_MAPPED_BASE) #define IS_PCI64(x) ((ulong_t)(x) >= PCI64_BASE) /* * The GIO address space. */ /* Xtalk to GIO PIO */ #define BRIDGE_GIO_MEM32_BASE BRIDGE_PIO32_XTALK_ALIAS_BASE #define BRIDGE_GIO_MEM32_LIMIT BRIDGE_PIO32_XTALK_ALIAS_LIMIT #define GIO_LOCAL_BASE BRIDGE_LOCAL_BASE /* GIO addresses of regions decoded by Bridge for DMA */ #define GIO_MAPPED_BASE BRIDGE_DMA_MAPPED_BASE #define GIO_DIRECT_BASE BRIDGE_DMA_DIRECT_BASE #define IS_GIO_LOCAL(x) ((ulong_t)(x) < GIO_MAPPED_BASE) #define IS_GIO_MAPPED(x) ((ulong_t)(x) < GIO_DIRECT_BASE && \ (ulong_t)(x) >= GIO_MAPPED_BASE) #define IS_GIO_DIRECT(x) ((ulong_t)(x) >= GIO_MAPPED_BASE) /* PCI to xtalk mapping */ /* given a DIR_OFF value and a pci/gio 32 bits direct address, determine * which xtalk address is accessed */ #define BRIDGE_DIRECT_32_SEG_SIZE BRIDGE_DMA_DIRECT_SIZE #define BRIDGE_DIRECT_32_TO_XTALK(dir_off,adr) \ ((dir_off) * BRIDGE_DIRECT_32_SEG_SIZE + \ ((adr) & (BRIDGE_DIRECT_32_SEG_SIZE - 1)) + PHYS_RAMBASE) /* 64-bit address attribute masks */ #define PCI64_ATTR_TARG_MASK 0xf000000000000000 #define PCI64_ATTR_TARG_SHFT 60 #define PCI64_ATTR_PREF 0x0800000000000000 #define PCI64_ATTR_PREC 0x0400000000000000 #define PCI64_ATTR_VIRTUAL 0x0200000000000000 #define PCI64_ATTR_BAR 0x0100000000000000 #define PCI64_ATTR_RMF_MASK 0x00ff000000000000 #define PCI64_ATTR_RMF_SHFT 48 struct bridge_controller { struct resource busn; struct bridge_regs *base; unsigned long baddr; unsigned long intr_addr; struct irq_domain *domain; unsigned int pci_int[8][2]; unsigned int int_mapping[8][2]; u32 ioc3_sid[8]; nasid_t nasid; }; #define BRIDGE_CONTROLLER(bus) \ ((struct bridge_controller *)((bus)->sysdata)) #define bridge_read(bc, reg) __raw_readl(&bc->base->reg) #define bridge_write(bc, reg, val) __raw_writel(val, &bc->base->reg) #define bridge_set(bc, reg, val) \ __raw_writel(__raw_readl(&bc->base->reg) | (val), &bc->base->reg) #define bridge_clr(bc, reg, val) \ __raw_writel(__raw_readl(&bc->base->reg) & ~(val), &bc->base->reg) #endif /* _ASM_PCI_BRIDGE_H */
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bridge.h
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10/03/24 20:38
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