release/src-rt/include/pci_core.h

   1 /*
   2  * BCM43XX PCI core hardware definitions.
   3  *
   4  * Copyright (C) 2010, Broadcom Corporation. All Rights Reserved.
   5  *
   6  * Permission to use, copy, modify, and/or distribute this software for any
   7  * purpose with or without fee is hereby granted, provided that the above
   8  * copyright notice and this permission notice appear in all copies.
   9  *
  10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  13  * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  14  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
  15  * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
  16  * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  17  *
  18  * $Id: pci_core.h,v 13.1 2007-12-04 07:22:41 Exp $
  19  */
  20
  21 #ifndef _PCI_CORE_H_
  22 #define _PCI_CORE_H_
  23
  24 #ifndef _LANGUAGE_ASSEMBLY
  25
  26 /* cpp contortions to concatenate w/arg prescan */
  27 #ifndef PAD
  28 #define _PADLINE(line)  pad ## line
  29 #define _XSTR(line)     _PADLINE(line)
  30 #define PAD             _XSTR(__LINE__)
  31 #endif
  32
  33 /* Sonics side: PCI core and host control registers */
  34 typedef struct sbpciregs {
  35         uint32 control;         /* PCI control */
  36         uint32 PAD[3];
  37         uint32 arbcontrol;      /* PCI arbiter control */
  38         uint32 clkrun;          /* Clkrun Control (>=rev11) */
  39         uint32 PAD[2];
  40         uint32 intstatus;       /* Interrupt status */
  41         uint32 intmask;         /* Interrupt mask */
  42         uint32 sbtopcimailbox;  /* Sonics to PCI mailbox */
  43         uint32 PAD[9];
  44         uint32 bcastaddr;       /* Sonics broadcast address */
  45         uint32 bcastdata;       /* Sonics broadcast data */
  46         uint32 PAD[2];
  47         uint32 gpioin;          /* ro: gpio input (>=rev2) */
  48         uint32 gpioout;         /* rw: gpio output (>=rev2) */
  49         uint32 gpioouten;       /* rw: gpio output enable (>= rev2) */
  50         uint32 gpiocontrol;     /* rw: gpio control (>= rev2) */
  51         uint32 PAD[36];
  52         uint32 sbtopci0;        /* Sonics to PCI translation 0 */
  53         uint32 sbtopci1;        /* Sonics to PCI translation 1 */
  54         uint32 sbtopci2;        /* Sonics to PCI translation 2 */
  55         uint32 PAD[189];
  56         uint32 pcicfg[4][64];   /* 0x400 - 0x7FF, PCI Cfg Space (>=rev8) */
  57         uint16 sprom[36];       /* SPROM shadow Area */
  58         uint32 PAD[46];
  59 } sbpciregs_t;
  60
  61 #endif  /* _LANGUAGE_ASSEMBLY */
  62
  63 /* PCI control */
  64 #define PCI_RST_OE      0x01    /* When set, drives PCI_RESET out to pin */
  65 #define PCI_RST         0x02    /* Value driven out to pin */
  66 #define PCI_CLK_OE      0x04    /* When set, drives clock as gated by PCI_CLK out to pin */
  67 #define PCI_CLK         0x08    /* Gate for clock driven out to pin */
  68
  69 /* PCI arbiter control */
  70 #define PCI_INT_ARB     0x01    /* When set, use an internal arbiter */
  71 #define PCI_EXT_ARB     0x02    /* When set, use an external arbiter */
  72 /* ParkID - for PCI corerev >= 8 */
  73 #define PCI_PARKID_MASK         0x1c    /* Selects which agent is parked on an idle bus */
  74 #define PCI_PARKID_SHIFT        2
  75 #define PCI_PARKID_EXT0         0       /* External master 0 */
  76 #define PCI_PARKID_EXT1         1       /* External master 1 */
  77 #define PCI_PARKID_EXT2         2       /* External master 2 */
  78 #define PCI_PARKID_EXT3         3       /* External master 3 (rev >= 11) */
  79 #define PCI_PARKID_INT          3       /* Internal master (rev < 11) */
  80 #define PCI11_PARKID_INT        4       /* Internal master (rev >= 11) */
  81 #define PCI_PARKID_LAST         4       /* Last active master (rev < 11) */
  82 #define PCI11_PARKID_LAST       5       /* Last active master (rev >= 11) */
  83
  84 #define PCI_CLKRUN_DSBL 0x8000  /* Bit 15 forceClkrun */
  85
  86 /* Interrupt status/mask */
  87 #define PCI_INTA        0x01    /* PCI INTA# is asserted */
  88 #define PCI_INTB        0x02    /* PCI INTB# is asserted */
  89 #define PCI_SERR        0x04    /* PCI SERR# has been asserted (write one to clear) */
  90 #define PCI_PERR        0x08    /* PCI PERR# has been asserted (write one to clear) */
  91 #define PCI_PME         0x10    /* PCI PME# is asserted */
  92
  93 /* (General) PCI/SB mailbox interrupts, two bits per pci function */
  94 #define MAILBOX_F0_0    0x100   /* function 0, int 0 */
  95 #define MAILBOX_F0_1    0x200   /* function 0, int 1 */
  96 #define MAILBOX_F1_0    0x400   /* function 1, int 0 */
  97 #define MAILBOX_F1_1    0x800   /* function 1, int 1 */
  98 #define MAILBOX_F2_0    0x1000  /* function 2, int 0 */
  99 #define MAILBOX_F2_1    0x2000  /* function 2, int 1 */
 100 #define MAILBOX_F3_0    0x4000  /* function 3, int 0 */
 101 #define MAILBOX_F3_1    0x8000  /* function 3, int 1 */
 102
 103 /* Sonics broadcast address */
 104 #define BCAST_ADDR_MASK 0xff    /* Broadcast register address */
 105
 106 /* Sonics to PCI translation types */
 107 #define SBTOPCI0_MASK   0xfc000000
 108 #define SBTOPCI1_MASK   0xfc000000
 109 #define SBTOPCI2_MASK   0xc0000000
 110 #define SBTOPCI_MEM     0
 111 #define SBTOPCI_IO      1
 112 #define SBTOPCI_CFG0    2
 113 #define SBTOPCI_CFG1    3
 114 #define SBTOPCI_PREF    0x4             /* prefetch enable */
 115 #define SBTOPCI_BURST   0x8             /* burst enable */
 116 #define SBTOPCI_RC_MASK         0x30    /* read command (>= rev11) */
 117 #define SBTOPCI_RC_READ         0x00    /* memory read */
 118 #define SBTOPCI_RC_READLINE     0x10    /* memory read line */
 119 #define SBTOPCI_RC_READMULTI    0x20    /* memory read multiple */
 120
 121 /* PCI core index in SROM shadow area */
 122 #define SRSH_PI_OFFSET  0       /* first word */
 123 #define SRSH_PI_MASK    0xf000  /* bit 15:12 */
 124 #define SRSH_PI_SHIFT   12      /* bit 15:12 */
 125
 126 #endif  /* _PCI_CORE_H_ */