package/linux/kernel-source/include/sbpci.h

   1 /*
   2  * BCM47XX Sonics SiliconBackplane PCI core hardware definitions.
   3  *
   4  * $Id$
   5  * Copyright 2004, Broadcom Corporation
   6  * All Rights Reserved.
   7  *
   8  * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY
   9  * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM
  10  * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS
  11  * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE.
  12  */
  13
  14 #ifndef _SBPCI_H
  15 #define _SBPCI_H
  16
  17 /* cpp contortions to concatenate w/arg prescan */
  18 #ifndef PAD
  19 #define _PADLINE(line)  pad ## line
  20 #define _XSTR(line)     _PADLINE(line)
  21 #define PAD             _XSTR(__LINE__)
  22 #endif
  23
  24 /* Sonics side: PCI core and host control registers */
  25 typedef struct sbpciregs {
  26         uint32 control;         /* PCI control */
  27         uint32 PAD[3];
  28         uint32 arbcontrol;      /* PCI arbiter control */
  29         uint32 PAD[3];
  30         uint32 intstatus;       /* Interrupt status */
  31         uint32 intmask;         /* Interrupt mask */
  32         uint32 sbtopcimailbox;  /* Sonics to PCI mailbox */
  33         uint32 PAD[9];
  34         uint32 bcastaddr;       /* Sonics broadcast address */
  35         uint32 bcastdata;       /* Sonics broadcast data */
  36         uint32 PAD[2];
  37         uint32 gpioin;          /* ro: gpio input (>=rev2) */
  38         uint32 gpioout;         /* rw: gpio output (>=rev2) */
  39         uint32 gpioouten;       /* rw: gpio output enable (>= rev2) */
  40         uint32 gpiocontrol;     /* rw: gpio control (>= rev2) */
  41         uint32 PAD[36];
  42         uint32 sbtopci0;        /* Sonics to PCI translation 0 */
  43         uint32 sbtopci1;        /* Sonics to PCI translation 1 */
  44         uint32 sbtopci2;        /* Sonics to PCI translation 2 */
  45         uint32 PAD[445];
  46         uint16 sprom[36];       /* SPROM shadow Area */
  47         uint32 PAD[46];
  48 } sbpciregs_t;
  49
  50 /* PCI control */
  51 #define PCI_RST_OE      0x01    /* When set, drives PCI_RESET out to pin */
  52 #define PCI_RST         0x02    /* Value driven out to pin */
  53 #define PCI_CLK_OE      0x04    /* When set, drives clock as gated by PCI_CLK out to pin */
  54 #define PCI_CLK         0x08    /* Gate for clock driven out to pin */
  55
  56 /* PCI arbiter control */
  57 #define PCI_INT_ARB     0x01    /* When set, use an internal arbiter */
  58 #define PCI_EXT_ARB     0x02    /* When set, use an external arbiter */
  59 #define PCI_PARKID_MASK 0x06    /* Selects which agent is parked on an idle bus */
  60 #define PCI_PARKID_SHIFT   1
  61 #define PCI_PARKID_LAST    0    /* Last requestor */
  62 #define PCI_PARKID_4710    1    /* 4710 */
  63 #define PCI_PARKID_EXTREQ0 2    /* External requestor 0 */
  64 #define PCI_PARKID_EXTREQ1 3    /* External requestor 1 */
  65
  66 /* Interrupt status/mask */
  67 #define PCI_INTA        0x01    /* PCI INTA# is asserted */
  68 #define PCI_INTB        0x02    /* PCI INTB# is asserted */
  69 #define PCI_SERR        0x04    /* PCI SERR# has been asserted (write one to clear) */
  70 #define PCI_PERR        0x08    /* PCI PERR# has been asserted (write one to clear) */
  71 #define PCI_PME         0x10    /* PCI PME# is asserted */
  72
  73 /* (General) PCI/SB mailbox interrupts, two bits per pci function */
  74 #define MAILBOX_F0_0    0x100   /* function 0, int 0 */
  75 #define MAILBOX_F0_1    0x200   /* function 0, int 1 */
  76 #define MAILBOX_F1_0    0x400   /* function 1, int 0 */
  77 #define MAILBOX_F1_1    0x800   /* function 1, int 1 */
  78 #define MAILBOX_F2_0    0x1000  /* function 2, int 0 */
  79 #define MAILBOX_F2_1    0x2000  /* function 2, int 1 */
  80 #define MAILBOX_F3_0    0x4000  /* function 3, int 0 */
  81 #define MAILBOX_F3_1    0x8000  /* function 3, int 1 */
  82
  83 /* Sonics broadcast address */
  84 #define BCAST_ADDR_MASK 0xff    /* Broadcast register address */
  85
  86 /* Sonics to PCI translation types */
  87 #define SBTOPCI0_MASK   0xfc000000
  88 #define SBTOPCI1_MASK   0xfc000000
  89 #define SBTOPCI2_MASK   0xc0000000
  90 #define SBTOPCI_MEM     0
  91 #define SBTOPCI_IO      1
  92 #define SBTOPCI_CFG0    2
  93 #define SBTOPCI_CFG1    3
  94 #define SBTOPCI_PREF    0x4     /* prefetch enable */
  95 #define SBTOPCI_BURST   0x8     /* burst enable */
  96
  97 /* PCI side: Reserved PCI configuration registers (see pcicfg.h) */
  98 #define cap_list        rsvd_a[0]
  99 #define bar0_window     dev_dep[0x80 - 0x40]
 100 #define bar1_window     dev_dep[0x84 - 0x40]
 101 #define sprom_control   dev_dep[0x88 - 0x40]
 102
 103 #ifndef _LANGUAGE_ASSEMBLY
 104
 105 extern int sbpci_read_config(void *sbh, uint bus, uint dev, uint func, uint off, void *buf, int len);
 106 extern int sbpci_write_config(void *sbh, uint bus, uint dev, uint func, uint off, void *buf, int len);
 107 extern void sbpci_ban(uint16 core);
 108 extern int sbpci_init(void *sbh);
 109 extern void sbpci_check(void *sbh);
 110
 111 #endif /* !_LANGUAGE_ASSEMBLY */
 112
 113 #endif  /* _SBPCI_H */