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Diffstat (limited to 'include/asm-mips/pci/bridge.h')
| -rw-r--r-- | include/asm-mips/pci/bridge.h | 851 |
1 files changed, 851 insertions, 0 deletions
diff --git a/include/asm-mips/pci/bridge.h b/include/asm-mips/pci/bridge.h new file mode 100644 index 000000000000..b4ee995c56e6 --- /dev/null +++ b/include/asm-mips/pci/bridge.h @@ -0,0 +1,851 @@ +/* + * 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 */ + +/* 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__ + +/* + * All accesses to bridge hardware registers must be done + * using 32-bit loads and stores. + */ +typedef u32 bridgereg_t; + +typedef u64 bridge_ate_t; + +/* pointers to bridge ATEs + * are always "pointer to volatile" + */ +typedef volatile bridge_ate_t *bridge_ate_p; + +/* + * It is generally preferred that hardware registers on the bridge + * are located from C code via this structure. + * + * Generated from Bridge spec dated 04oct95 + */ + +typedef volatile struct bridge_s { + /* 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 */ + bridgereg_t _pad_000058; + bridgereg_t b_wid_aux_err; /* 0x00005C */ + bridgereg_t _pad_000060; + bridgereg_t b_wid_resp_upper; /* 0x000064 */ + bridgereg_t _pad_000068; + bridgereg_t b_wid_resp_lower; /* 0x00006C */ + bridgereg_t _pad_000070; + bridgereg_t b_wid_tst_pin_ctrl; /* 0x000074 */ + bridgereg_t _pad_000078[2]; + + /* PMU & Map 0x000080-0x00008F */ + bridgereg_t _pad_000080; + bridgereg_t b_dir_map; /* 0x000084 */ + bridgereg_t _pad_000088[2]; + + /* SSRAM 0x000090-0x00009F */ + bridgereg_t _pad_000090; + bridgereg_t b_ram_perr; /* 0x000094 */ + bridgereg_t _pad_000098[2]; + + /* Arbitration 0x0000A0-0x0000AF */ + bridgereg_t _pad_0000A0; + bridgereg_t b_arb; /* 0x0000A4 */ + bridgereg_t _pad_0000A8[2]; + + /* Number In A Can 0x0000B0-0x0000BF */ + bridgereg_t _pad_0000B0; + bridgereg_t b_nic; /* 0x0000B4 */ + bridgereg_t _pad_0000B8[2]; + + /* PCI/GIO 0x0000C0-0x0000FF */ + bridgereg_t _pad_0000C0; + bridgereg_t b_bus_timeout; /* 0x0000C4 */ +#define b_pci_bus_timeout b_bus_timeout + + bridgereg_t _pad_0000C8; + bridgereg_t b_pci_cfg; /* 0x0000CC */ + bridgereg_t _pad_0000D0; + bridgereg_t b_pci_err_upper; /* 0x0000D4 */ + bridgereg_t _pad_0000D8; + bridgereg_t b_pci_err_lower; /* 0x0000DC */ + bridgereg_t _pad_0000E0[8]; +#define b_gio_err_lower b_pci_err_lower +#define b_gio_err_upper b_pci_err_upper + + /* Interrupt 0x000100-0x0001FF */ + bridgereg_t _pad_000100; + bridgereg_t b_int_status; /* 0x000104 */ + bridgereg_t _pad_000108; + bridgereg_t b_int_enable; /* 0x00010C */ + bridgereg_t _pad_000110; + bridgereg_t b_int_rst_stat; /* 0x000114 */ + bridgereg_t _pad_000118; + bridgereg_t b_int_mode; /* 0x00011C */ + bridgereg_t _pad_000120; + bridgereg_t b_int_device; /* 0x000124 */ + bridgereg_t _pad_000128; + bridgereg_t b_int_host_err; /* 0x00012C */ + + struct { + bridgereg_t __pad; /* 0x0001{30,,,68} */ + bridgereg_t addr; /* 0x0001{34,,,6C} */ + } b_int_addr[8]; /* 0x000130 */ + + bridgereg_t _pad_000170[36]; + + /* Device 0x000200-0x0003FF */ + struct { + bridgereg_t __pad; /* 0x0002{00,,,38} */ + bridgereg_t reg; /* 0x0002{04,,,3C} */ + } b_device[8]; /* 0x000200 */ + + struct { + bridgereg_t __pad; /* 0x0002{40,,,78} */ + bridgereg_t reg; /* 0x0002{44,,,7C} */ + } b_wr_req_buf[8]; /* 0x000240 */ + + struct { + bridgereg_t __pad; /* 0x0002{80,,,88} */ + bridgereg_t 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 */ + + bridgereg_t _pad_000290; + bridgereg_t b_resp_status; /* 0x000294 */ + bridgereg_t _pad_000298; + bridgereg_t b_resp_clear; /* 0x00029C */ + + bridgereg_t _pad_0002A0[24]; + + char _pad_000300[0x10000 - 0x000300]; + + /* Internal Address Translation Entry RAM 0x010000-0x0103FF */ + union { + bridge_ate_t wr; /* write-only */ + struct { + bridgereg_t _p_pad; + bridgereg_t rd; /* read-only */ + } hi; + } b_int_ate_ram[128]; + + char _pad_010400[0x11000 - 0x010400]; + + /* Internal Address Translation Entry RAM LOW 0x011000-0x0113FF */ + struct { + bridgereg_t _p_pad; + bridgereg_t 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 */ + bridge_ate_t 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 */ +} bridge_t; + +/* + * Field formats for Error Command Word and Auxillary Error Command Word + * of bridge. + */ +typedef struct bridge_err_cmdword_s { + 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 Transacti */ + 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; +} bridge_err_cmdword_t; + +#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_t" 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 sytem + */ +#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 + +#ifndef __ASSEMBLY__ +/* Address translation entry for mapped pci32 accesses */ +typedef union ate_u { + u64 ent; + struct ate_s { + u64 rmf:16; + u64 addr:36; + u64 targ:4; + u64 reserved:3; + u64 barrier:1; + u64 prefetch:1; + u64 precise:1; + u64 coherent:1; + u64 valid:1; + } field; +} ate_t; +#endif /* !__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 + +struct bridge_controller { + struct pci_controller pc; + struct resource mem; + struct resource io; + bridge_t *base; + nasid_t nasid; + unsigned int widget_id; + unsigned int irq_cpu; + dma64_addr_t baddr; + unsigned int pci_int[8]; +}; + +#define BRIDGE_CONTROLLER(bus) \ + ((struct bridge_controller *)((bus)->sysdata)) + +extern void register_bridge_irq(unsigned int irq); +extern int request_bridge_irq(struct bridge_controller *bc); + +#endif /* _ASM_PCI_BRIDGE_H */ |