854 lines
29 KiB
C
854 lines
29 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* bridge.h - bridge chip header file, derived from IRIX <sys/PCI/bridge.h>,
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* revision 1.76.
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*
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* Copyright (C) 1996, 1999 Silcon Graphics, Inc.
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* Copyright (C) 1999 Ralf Baechle (ralf@gnu.org)
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*/
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#ifndef _ASM_PCI_BRIDGE_H
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#define _ASM_PCI_BRIDGE_H
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#include <linux/types.h>
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#include <linux/pci.h>
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#include <asm/xtalk/xwidget.h> /* generic widget header */
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#include <asm/sn/types.h>
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/* I/O page size */
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#define IOPFNSHIFT 12 /* 4K per mapped page */
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#define IOPGSIZE (1 << IOPFNSHIFT)
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#define IOPG(x) ((x) >> IOPFNSHIFT)
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#define IOPGOFF(x) ((x) & (IOPGSIZE-1))
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/* Bridge RAM sizes */
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#define BRIDGE_ATE_RAM_SIZE 0x00000400 /* 1kB ATE RAM */
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#define BRIDGE_CONFIG_BASE 0x20000
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#define BRIDGE_CONFIG1_BASE 0x28000
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#define BRIDGE_CONFIG_END 0x30000
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#define BRIDGE_CONFIG_SLOT_SIZE 0x1000
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#define BRIDGE_SSRAM_512K 0x00080000 /* 512kB */
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#define BRIDGE_SSRAM_128K 0x00020000 /* 128kB */
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#define BRIDGE_SSRAM_64K 0x00010000 /* 64kB */
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#define BRIDGE_SSRAM_0K 0x00000000 /* 0kB */
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/* ========================================================================
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* Bridge address map
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*/
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#ifndef __ASSEMBLY__
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/*
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* All accesses to bridge hardware registers must be done
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* using 32-bit loads and stores.
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*/
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typedef u32 bridgereg_t;
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typedef u64 bridge_ate_t;
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/* pointers to bridge ATEs
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* are always "pointer to volatile"
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*/
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typedef volatile bridge_ate_t *bridge_ate_p;
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/*
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* It is generally preferred that hardware registers on the bridge
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* are located from C code via this structure.
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*
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* Generated from Bridge spec dated 04oct95
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*/
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typedef volatile struct bridge_s {
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/* Local Registers 0x000000-0x00FFFF */
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/* standard widget configuration 0x000000-0x000057 */
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widget_cfg_t b_widget; /* 0x000000 */
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/* helper fieldnames for accessing bridge widget */
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#define b_wid_id b_widget.w_id
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#define b_wid_stat b_widget.w_status
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#define b_wid_err_upper b_widget.w_err_upper_addr
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#define b_wid_err_lower b_widget.w_err_lower_addr
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#define b_wid_control b_widget.w_control
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#define b_wid_req_timeout b_widget.w_req_timeout
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#define b_wid_int_upper b_widget.w_intdest_upper_addr
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#define b_wid_int_lower b_widget.w_intdest_lower_addr
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#define b_wid_err_cmdword b_widget.w_err_cmd_word
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#define b_wid_llp b_widget.w_llp_cfg
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#define b_wid_tflush b_widget.w_tflush
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/* bridge-specific widget configuration 0x000058-0x00007F */
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bridgereg_t _pad_000058;
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bridgereg_t b_wid_aux_err; /* 0x00005C */
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bridgereg_t _pad_000060;
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bridgereg_t b_wid_resp_upper; /* 0x000064 */
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bridgereg_t _pad_000068;
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bridgereg_t b_wid_resp_lower; /* 0x00006C */
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bridgereg_t _pad_000070;
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bridgereg_t b_wid_tst_pin_ctrl; /* 0x000074 */
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bridgereg_t _pad_000078[2];
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/* PMU & Map 0x000080-0x00008F */
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bridgereg_t _pad_000080;
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bridgereg_t b_dir_map; /* 0x000084 */
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bridgereg_t _pad_000088[2];
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/* SSRAM 0x000090-0x00009F */
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bridgereg_t _pad_000090;
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bridgereg_t b_ram_perr; /* 0x000094 */
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bridgereg_t _pad_000098[2];
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/* Arbitration 0x0000A0-0x0000AF */
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bridgereg_t _pad_0000A0;
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bridgereg_t b_arb; /* 0x0000A4 */
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bridgereg_t _pad_0000A8[2];
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/* Number In A Can 0x0000B0-0x0000BF */
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bridgereg_t _pad_0000B0;
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bridgereg_t b_nic; /* 0x0000B4 */
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bridgereg_t _pad_0000B8[2];
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/* PCI/GIO 0x0000C0-0x0000FF */
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bridgereg_t _pad_0000C0;
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bridgereg_t b_bus_timeout; /* 0x0000C4 */
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#define b_pci_bus_timeout b_bus_timeout
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bridgereg_t _pad_0000C8;
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bridgereg_t b_pci_cfg; /* 0x0000CC */
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bridgereg_t _pad_0000D0;
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bridgereg_t b_pci_err_upper; /* 0x0000D4 */
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bridgereg_t _pad_0000D8;
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bridgereg_t b_pci_err_lower; /* 0x0000DC */
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bridgereg_t _pad_0000E0[8];
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#define b_gio_err_lower b_pci_err_lower
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#define b_gio_err_upper b_pci_err_upper
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/* Interrupt 0x000100-0x0001FF */
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bridgereg_t _pad_000100;
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bridgereg_t b_int_status; /* 0x000104 */
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bridgereg_t _pad_000108;
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bridgereg_t b_int_enable; /* 0x00010C */
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bridgereg_t _pad_000110;
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bridgereg_t b_int_rst_stat; /* 0x000114 */
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bridgereg_t _pad_000118;
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bridgereg_t b_int_mode; /* 0x00011C */
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bridgereg_t _pad_000120;
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bridgereg_t b_int_device; /* 0x000124 */
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bridgereg_t _pad_000128;
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bridgereg_t b_int_host_err; /* 0x00012C */
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struct {
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bridgereg_t __pad; /* 0x0001{30,,,68} */
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bridgereg_t addr; /* 0x0001{34,,,6C} */
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} b_int_addr[8]; /* 0x000130 */
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bridgereg_t _pad_000170[36];
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/* Device 0x000200-0x0003FF */
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struct {
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bridgereg_t __pad; /* 0x0002{00,,,38} */
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bridgereg_t reg; /* 0x0002{04,,,3C} */
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} b_device[8]; /* 0x000200 */
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struct {
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bridgereg_t __pad; /* 0x0002{40,,,78} */
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bridgereg_t reg; /* 0x0002{44,,,7C} */
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} b_wr_req_buf[8]; /* 0x000240 */
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struct {
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bridgereg_t __pad; /* 0x0002{80,,,88} */
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bridgereg_t reg; /* 0x0002{84,,,8C} */
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} b_rrb_map[2]; /* 0x000280 */
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#define b_even_resp b_rrb_map[0].reg /* 0x000284 */
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#define b_odd_resp b_rrb_map[1].reg /* 0x00028C */
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bridgereg_t _pad_000290;
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bridgereg_t b_resp_status; /* 0x000294 */
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bridgereg_t _pad_000298;
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bridgereg_t b_resp_clear; /* 0x00029C */
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bridgereg_t _pad_0002A0[24];
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char _pad_000300[0x10000 - 0x000300];
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/* Internal Address Translation Entry RAM 0x010000-0x0103FF */
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union {
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bridge_ate_t wr; /* write-only */
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struct {
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bridgereg_t _p_pad;
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bridgereg_t rd; /* read-only */
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} hi;
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} b_int_ate_ram[128];
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char _pad_010400[0x11000 - 0x010400];
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/* Internal Address Translation Entry RAM LOW 0x011000-0x0113FF */
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struct {
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bridgereg_t _p_pad;
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bridgereg_t rd; /* read-only */
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} b_int_ate_ram_lo[128];
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char _pad_011400[0x20000 - 0x011400];
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/* PCI Device Configuration Spaces 0x020000-0x027FFF */
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union { /* make all access sizes available. */
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u8 c[0x1000 / 1];
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u16 s[0x1000 / 2];
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u32 l[0x1000 / 4];
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u64 d[0x1000 / 8];
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union {
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u8 c[0x100 / 1];
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u16 s[0x100 / 2];
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u32 l[0x100 / 4];
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u64 d[0x100 / 8];
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} f[8];
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} b_type0_cfg_dev[8]; /* 0x020000 */
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/* PCI Type 1 Configuration Space 0x028000-0x028FFF */
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union { /* make all access sizes available. */
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u8 c[0x1000 / 1];
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u16 s[0x1000 / 2];
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u32 l[0x1000 / 4];
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u64 d[0x1000 / 8];
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} b_type1_cfg; /* 0x028000-0x029000 */
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char _pad_029000[0x007000]; /* 0x029000-0x030000 */
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/* PCI Interrupt Acknowledge Cycle 0x030000 */
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union {
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u8 c[8 / 1];
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u16 s[8 / 2];
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u32 l[8 / 4];
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u64 d[8 / 8];
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} b_pci_iack; /* 0x030000 */
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u8 _pad_030007[0x04fff8]; /* 0x030008-0x07FFFF */
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/* External Address Translation Entry RAM 0x080000-0x0FFFFF */
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bridge_ate_t b_ext_ate_ram[0x10000];
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/* Reserved 0x100000-0x1FFFFF */
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char _pad_100000[0x200000-0x100000];
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/* PCI/GIO Device Spaces 0x200000-0xBFFFFF */
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union { /* make all access sizes available. */
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u8 c[0x100000 / 1];
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u16 s[0x100000 / 2];
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u32 l[0x100000 / 4];
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u64 d[0x100000 / 8];
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} b_devio_raw[10]; /* 0x200000 */
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/* b_devio macro is a bit strange; it reflects the
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* fact that the Bridge ASIC provides 2M for the
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* first two DevIO windows and 1M for the other six.
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*/
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#define b_devio(n) b_devio_raw[((n)<2)?(n*2):(n+2)]
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/* External Flash Proms 1,0 0xC00000-0xFFFFFF */
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union { /* make all access sizes available. */
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u8 c[0x400000 / 1]; /* read-only */
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u16 s[0x400000 / 2]; /* read-write */
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u32 l[0x400000 / 4]; /* read-only */
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u64 d[0x400000 / 8]; /* read-only */
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} b_external_flash; /* 0xC00000 */
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} bridge_t;
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/*
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* Field formats for Error Command Word and Auxillary Error Command Word
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* of bridge.
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*/
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typedef struct bridge_err_cmdword_s {
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union {
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u32 cmd_word;
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struct {
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u32 didn:4, /* Destination ID */
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sidn:4, /* Source ID */
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pactyp:4, /* Packet type */
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tnum:5, /* Trans Number */
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coh:1, /* Coh Transacti */
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ds:2, /* Data size */
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gbr:1, /* GBR enable */
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vbpm:1, /* VBPM message */
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error:1, /* Error occurred */
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barr:1, /* Barrier op */
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rsvd:8;
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} berr_st;
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} berr_un;
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} bridge_err_cmdword_t;
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#define berr_field berr_un.berr_st
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#endif /* !__ASSEMBLY__ */
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/*
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* The values of these macros can and should be crosschecked
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* regularly against the offsets of the like-named fields
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* within the "bridge_t" structure above.
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*/
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/* Byte offset macros for Bridge internal registers */
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#define BRIDGE_WID_ID WIDGET_ID
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#define BRIDGE_WID_STAT WIDGET_STATUS
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#define BRIDGE_WID_ERR_UPPER WIDGET_ERR_UPPER_ADDR
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#define BRIDGE_WID_ERR_LOWER WIDGET_ERR_LOWER_ADDR
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#define BRIDGE_WID_CONTROL WIDGET_CONTROL
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#define BRIDGE_WID_REQ_TIMEOUT WIDGET_REQ_TIMEOUT
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#define BRIDGE_WID_INT_UPPER WIDGET_INTDEST_UPPER_ADDR
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#define BRIDGE_WID_INT_LOWER WIDGET_INTDEST_LOWER_ADDR
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#define BRIDGE_WID_ERR_CMDWORD WIDGET_ERR_CMD_WORD
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#define BRIDGE_WID_LLP WIDGET_LLP_CFG
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#define BRIDGE_WID_TFLUSH WIDGET_TFLUSH
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#define BRIDGE_WID_AUX_ERR 0x00005C /* Aux Error Command Word */
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#define BRIDGE_WID_RESP_UPPER 0x000064 /* Response Buf Upper Addr */
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#define BRIDGE_WID_RESP_LOWER 0x00006C /* Response Buf Lower Addr */
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#define BRIDGE_WID_TST_PIN_CTRL 0x000074 /* Test pin control */
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#define BRIDGE_DIR_MAP 0x000084 /* Direct Map reg */
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#define BRIDGE_RAM_PERR 0x000094 /* SSRAM Parity Error */
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#define BRIDGE_ARB 0x0000A4 /* Arbitration Priority reg */
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#define BRIDGE_NIC 0x0000B4 /* Number In A Can */
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#define BRIDGE_BUS_TIMEOUT 0x0000C4 /* Bus Timeout Register */
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#define BRIDGE_PCI_BUS_TIMEOUT BRIDGE_BUS_TIMEOUT
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#define BRIDGE_PCI_CFG 0x0000CC /* PCI Type 1 Config reg */
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#define BRIDGE_PCI_ERR_UPPER 0x0000D4 /* PCI error Upper Addr */
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#define BRIDGE_PCI_ERR_LOWER 0x0000DC /* PCI error Lower Addr */
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#define BRIDGE_INT_STATUS 0x000104 /* Interrupt Status */
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#define BRIDGE_INT_ENABLE 0x00010C /* Interrupt Enables */
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#define BRIDGE_INT_RST_STAT 0x000114 /* Reset Intr Status */
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#define BRIDGE_INT_MODE 0x00011C /* Interrupt Mode */
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#define BRIDGE_INT_DEVICE 0x000124 /* Interrupt Device */
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#define BRIDGE_INT_HOST_ERR 0x00012C /* Host Error Field */
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#define BRIDGE_INT_ADDR0 0x000134 /* Host Address Reg */
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#define BRIDGE_INT_ADDR_OFF 0x000008 /* Host Addr offset (1..7) */
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#define BRIDGE_INT_ADDR(x) (BRIDGE_INT_ADDR0+(x)*BRIDGE_INT_ADDR_OFF)
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#define BRIDGE_DEVICE0 0x000204 /* Device 0 */
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#define BRIDGE_DEVICE_OFF 0x000008 /* Device offset (1..7) */
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#define BRIDGE_DEVICE(x) (BRIDGE_DEVICE0+(x)*BRIDGE_DEVICE_OFF)
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#define BRIDGE_WR_REQ_BUF0 0x000244 /* Write Request Buffer 0 */
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#define BRIDGE_WR_REQ_BUF_OFF 0x000008 /* Buffer Offset (1..7) */
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#define BRIDGE_WR_REQ_BUF(x) (BRIDGE_WR_REQ_BUF0+(x)*BRIDGE_WR_REQ_BUF_OFF)
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#define BRIDGE_EVEN_RESP 0x000284 /* Even Device Response Buf */
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#define BRIDGE_ODD_RESP 0x00028C /* Odd Device Response Buf */
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#define BRIDGE_RESP_STATUS 0x000294 /* Read Response Status reg */
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#define BRIDGE_RESP_CLEAR 0x00029C /* Read Response Clear reg */
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/* Byte offset macros for Bridge I/O space */
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#define BRIDGE_ATE_RAM 0x00010000 /* Internal Addr Xlat Ram */
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#define BRIDGE_TYPE0_CFG_DEV0 0x00020000 /* Type 0 Cfg, Device 0 */
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#define BRIDGE_TYPE0_CFG_SLOT_OFF 0x00001000 /* Type 0 Cfg Slot Offset (1..7) */
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#define BRIDGE_TYPE0_CFG_FUNC_OFF 0x00000100 /* Type 0 Cfg Func Offset (1..7) */
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#define BRIDGE_TYPE0_CFG_DEV(s) (BRIDGE_TYPE0_CFG_DEV0+\
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(s)*BRIDGE_TYPE0_CFG_SLOT_OFF)
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#define BRIDGE_TYPE0_CFG_DEVF(s,f) (BRIDGE_TYPE0_CFG_DEV0+\
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(s)*BRIDGE_TYPE0_CFG_SLOT_OFF+\
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(f)*BRIDGE_TYPE0_CFG_FUNC_OFF)
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#define BRIDGE_TYPE1_CFG 0x00028000 /* Type 1 Cfg space */
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#define BRIDGE_PCI_IACK 0x00030000 /* PCI Interrupt Ack */
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#define BRIDGE_EXT_SSRAM 0x00080000 /* Extern SSRAM (ATE) */
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/* Byte offset macros for Bridge device IO spaces */
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#define BRIDGE_DEV_CNT 8 /* Up to 8 devices per bridge */
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#define BRIDGE_DEVIO0 0x00200000 /* Device IO 0 Addr */
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#define BRIDGE_DEVIO1 0x00400000 /* Device IO 1 Addr */
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#define BRIDGE_DEVIO2 0x00600000 /* Device IO 2 Addr */
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#define BRIDGE_DEVIO_OFF 0x00100000 /* Device IO Offset (3..7) */
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#define BRIDGE_DEVIO_2MB 0x00200000 /* Device IO Offset (0..1) */
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#define BRIDGE_DEVIO_1MB 0x00100000 /* Device IO Offset (2..7) */
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#define BRIDGE_DEVIO(x) ((x)<=1 ? BRIDGE_DEVIO0+(x)*BRIDGE_DEVIO_2MB : BRIDGE_DEVIO2+((x)-2)*BRIDGE_DEVIO_1MB)
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#define BRIDGE_EXTERNAL_FLASH 0x00C00000 /* External Flash PROMS */
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/* ========================================================================
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* Bridge register bit field definitions
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*/
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/* Widget part number of bridge */
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#define BRIDGE_WIDGET_PART_NUM 0xc002
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#define XBRIDGE_WIDGET_PART_NUM 0xd002
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/* Manufacturer of bridge */
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#define BRIDGE_WIDGET_MFGR_NUM 0x036
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#define XBRIDGE_WIDGET_MFGR_NUM 0x024
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/* Revision numbers for known Bridge revisions */
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#define BRIDGE_REV_A 0x1
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#define BRIDGE_REV_B 0x2
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#define BRIDGE_REV_C 0x3
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#define BRIDGE_REV_D 0x4
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/* Bridge widget status register bits definition */
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#define BRIDGE_STAT_LLP_REC_CNT (0xFFu << 24)
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#define BRIDGE_STAT_LLP_TX_CNT (0xFF << 16)
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#define BRIDGE_STAT_FLASH_SELECT (0x1 << 6)
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#define BRIDGE_STAT_PCI_GIO_N (0x1 << 5)
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#define BRIDGE_STAT_PENDING (0x1F << 0)
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/* Bridge widget control register bits definition */
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#define BRIDGE_CTRL_FLASH_WR_EN (0x1ul << 31)
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#define BRIDGE_CTRL_EN_CLK50 (0x1 << 30)
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#define BRIDGE_CTRL_EN_CLK40 (0x1 << 29)
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#define BRIDGE_CTRL_EN_CLK33 (0x1 << 28)
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#define BRIDGE_CTRL_RST(n) ((n) << 24)
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#define BRIDGE_CTRL_RST_MASK (BRIDGE_CTRL_RST(0xF))
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#define BRIDGE_CTRL_RST_PIN(x) (BRIDGE_CTRL_RST(0x1 << (x)))
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#define BRIDGE_CTRL_IO_SWAP (0x1 << 23)
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#define BRIDGE_CTRL_MEM_SWAP (0x1 << 22)
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#define BRIDGE_CTRL_PAGE_SIZE (0x1 << 21)
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#define BRIDGE_CTRL_SS_PAR_BAD (0x1 << 20)
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#define BRIDGE_CTRL_SS_PAR_EN (0x1 << 19)
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#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
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#define BRIDGE_DMA_MAPPED_SIZE 0x40000000 /* 1G Bytes */
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#define BRIDGE_DMA_DIRECT_BASE 0x80000000
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#define BRIDGE_DMA_DIRECT_SIZE 0x80000000 /* 2G Bytes */
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#define PCI32_LOCAL_BASE BRIDGE_LOCAL_BASE
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/* PCI addresses of regions decoded by Bridge for DMA */
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#define PCI32_MAPPED_BASE BRIDGE_DMA_MAPPED_BASE
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#define PCI32_DIRECT_BASE BRIDGE_DMA_DIRECT_BASE
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#define IS_PCI32_LOCAL(x) ((ulong_t)(x) < PCI32_MAPPED_BASE)
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#define IS_PCI32_MAPPED(x) ((ulong_t)(x) < PCI32_DIRECT_BASE && \
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(ulong_t)(x) >= PCI32_MAPPED_BASE)
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#define IS_PCI32_DIRECT(x) ((ulong_t)(x) >= PCI32_MAPPED_BASE)
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#define IS_PCI64(x) ((ulong_t)(x) >= PCI64_BASE)
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/*
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* The GIO address space.
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*/
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/* Xtalk to GIO PIO */
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#define BRIDGE_GIO_MEM32_BASE BRIDGE_PIO32_XTALK_ALIAS_BASE
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#define BRIDGE_GIO_MEM32_LIMIT BRIDGE_PIO32_XTALK_ALIAS_LIMIT
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#define GIO_LOCAL_BASE BRIDGE_LOCAL_BASE
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/* GIO addresses of regions decoded by Bridge for DMA */
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#define GIO_MAPPED_BASE BRIDGE_DMA_MAPPED_BASE
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#define GIO_DIRECT_BASE BRIDGE_DMA_DIRECT_BASE
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#define IS_GIO_LOCAL(x) ((ulong_t)(x) < GIO_MAPPED_BASE)
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#define IS_GIO_MAPPED(x) ((ulong_t)(x) < GIO_DIRECT_BASE && \
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(ulong_t)(x) >= GIO_MAPPED_BASE)
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#define IS_GIO_DIRECT(x) ((ulong_t)(x) >= GIO_MAPPED_BASE)
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/* PCI to xtalk mapping */
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/* given a DIR_OFF value and a pci/gio 32 bits direct address, determine
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* which xtalk address is accessed
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*/
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#define BRIDGE_DIRECT_32_SEG_SIZE BRIDGE_DMA_DIRECT_SIZE
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#define BRIDGE_DIRECT_32_TO_XTALK(dir_off,adr) \
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((dir_off) * BRIDGE_DIRECT_32_SEG_SIZE + \
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((adr) & (BRIDGE_DIRECT_32_SEG_SIZE - 1)) + PHYS_RAMBASE)
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/* 64-bit address attribute masks */
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#define PCI64_ATTR_TARG_MASK 0xf000000000000000
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#define PCI64_ATTR_TARG_SHFT 60
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#define PCI64_ATTR_PREF 0x0800000000000000
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#define PCI64_ATTR_PREC 0x0400000000000000
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#define PCI64_ATTR_VIRTUAL 0x0200000000000000
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#define PCI64_ATTR_BAR 0x0100000000000000
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#define PCI64_ATTR_RMF_MASK 0x00ff000000000000
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#define PCI64_ATTR_RMF_SHFT 48
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#ifndef __ASSEMBLY__
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/* Address translation entry for mapped pci32 accesses */
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typedef union ate_u {
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u64 ent;
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struct ate_s {
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u64 rmf:16;
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u64 addr:36;
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u64 targ:4;
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u64 reserved:3;
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u64 barrier:1;
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u64 prefetch:1;
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u64 precise:1;
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u64 coherent:1;
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u64 valid:1;
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} field;
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} ate_t;
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#endif /* !__ASSEMBLY__ */
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#define ATE_V 0x01
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#define ATE_CO 0x02
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#define ATE_PREC 0x04
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#define ATE_PREF 0x08
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#define ATE_BAR 0x10
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#define ATE_PFNSHIFT 12
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#define ATE_TIDSHIFT 8
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#define ATE_RMFSHIFT 48
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#define mkate(xaddr, xid, attr) ((xaddr) & 0x0000fffffffff000ULL) | \
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((xid)<<ATE_TIDSHIFT) | \
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(attr)
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#define BRIDGE_INTERNAL_ATES 128
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struct bridge_controller {
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struct pci_controller pc;
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struct resource mem;
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struct resource io;
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bridge_t *base;
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nasid_t nasid;
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unsigned int widget_id;
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unsigned int irq_cpu;
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dma64_addr_t baddr;
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unsigned int pci_int[8];
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};
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#define BRIDGE_CONTROLLER(bus) \
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((struct bridge_controller *)((bus)->sysdata))
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extern void register_bridge_irq(unsigned int irq);
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extern int request_bridge_irq(struct bridge_controller *bc);
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extern struct pci_ops bridge_pci_ops;
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#endif /* _ASM_PCI_BRIDGE_H */
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