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/*
* Copyright (c) 2010 Broadcom Corporation
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _PCI_CORE_H_
#define _PCI_CORE_H_
#ifndef _LANGUAGE_ASSEMBLY
/* cpp contortions to concatenate w/arg prescan */
#ifndef PAD
#define _PADLINE(line) pad ## line
#define _XSTR(line) _PADLINE(line)
#define PAD _XSTR(__LINE__)
#endif
/* Sonics side: PCI core and host control registers */
struct sbpciregs {
u32 control; /* PCI control */
u32 PAD[3];
u32 arbcontrol; /* PCI arbiter control */
u32 clkrun; /* Clkrun Control (>=rev11) */
u32 PAD[2];
u32 intstatus; /* Interrupt status */
u32 intmask; /* Interrupt mask */
u32 sbtopcimailbox; /* Sonics to PCI mailbox */
u32 PAD[9];
u32 bcastaddr; /* Sonics broadcast address */
u32 bcastdata; /* Sonics broadcast data */
u32 PAD[2];
u32 gpioin; /* ro: gpio input (>=rev2) */
u32 gpioout; /* rw: gpio output (>=rev2) */
u32 gpioouten; /* rw: gpio output enable (>= rev2) */
u32 gpiocontrol; /* rw: gpio control (>= rev2) */
u32 PAD[36];
u32 sbtopci0; /* Sonics to PCI translation 0 */
u32 sbtopci1; /* Sonics to PCI translation 1 */
u32 sbtopci2; /* Sonics to PCI translation 2 */
u32 PAD[189];
u32 pcicfg[4][64]; /* 0x400 - 0x7FF, PCI Cfg Space (>=rev8) */
u16 sprom[36]; /* SPROM shadow Area */
u32 PAD[46];
};
#endif /* _LANGUAGE_ASSEMBLY */
/* PCI control */
#define PCI_RST_OE 0x01 /* When set, drives PCI_RESET out to pin */
#define PCI_RST 0x02 /* Value driven out to pin */
#define PCI_CLK_OE 0x04 /* When set, drives clock as gated by PCI_CLK out to pin */
#define PCI_CLK 0x08 /* Gate for clock driven out to pin */
/* PCI arbiter control */
#define PCI_INT_ARB 0x01 /* When set, use an internal arbiter */
#define PCI_EXT_ARB 0x02 /* When set, use an external arbiter */
/* ParkID - for PCI corerev >= 8 */
#define PCI_PARKID_MASK 0x1c /* Selects which agent is parked on an idle bus */
#define PCI_PARKID_SHIFT 2
#define PCI_PARKID_EXT0 0 /* External master 0 */
#define PCI_PARKID_EXT1 1 /* External master 1 */
#define PCI_PARKID_EXT2 2 /* External master 2 */
#define PCI_PARKID_EXT3 3 /* External master 3 (rev >= 11) */
#define PCI_PARKID_INT 3 /* Internal master (rev < 11) */
#define PCI11_PARKID_INT 4 /* Internal master (rev >= 11) */
#define PCI_PARKID_LAST 4 /* Last active master (rev < 11) */
#define PCI11_PARKID_LAST 5 /* Last active master (rev >= 11) */
#define PCI_CLKRUN_DSBL 0x8000 /* Bit 15 forceClkrun */
/* Interrupt status/mask */
#define PCI_INTA 0x01 /* PCI INTA# is asserted */
#define PCI_INTB 0x02 /* PCI INTB# is asserted */
#define PCI_SERR 0x04 /* PCI SERR# has been asserted (write one to clear) */
#define PCI_PERR 0x08 /* PCI PERR# has been asserted (write one to clear) */
#define PCI_PME 0x10 /* PCI PME# is asserted */
/* (General) PCI/SB mailbox interrupts, two bits per pci function */
#define MAILBOX_F0_0 0x100 /* function 0, int 0 */
#define MAILBOX_F0_1 0x200 /* function 0, int 1 */
#define MAILBOX_F1_0 0x400 /* function 1, int 0 */
#define MAILBOX_F1_1 0x800 /* function 1, int 1 */
#define MAILBOX_F2_0 0x1000 /* function 2, int 0 */
#define MAILBOX_F2_1 0x2000 /* function 2, int 1 */
#define MAILBOX_F3_0 0x4000 /* function 3, int 0 */
#define MAILBOX_F3_1 0x8000 /* function 3, int 1 */
/* Sonics broadcast address */
#define BCAST_ADDR_MASK 0xff /* Broadcast register address */
/* Sonics to PCI translation types */
#define SBTOPCI0_MASK 0xfc000000
#define SBTOPCI1_MASK 0xfc000000
#define SBTOPCI2_MASK 0xc0000000
#define SBTOPCI_MEM 0
#define SBTOPCI_IO 1
#define SBTOPCI_CFG0 2
#define SBTOPCI_CFG1 3
#define SBTOPCI_PREF 0x4 /* prefetch enable */
#define SBTOPCI_BURST 0x8 /* burst enable */
#define SBTOPCI_RC_MASK 0x30 /* read command (>= rev11) */
#define SBTOPCI_RC_READ 0x00 /* memory read */
#define SBTOPCI_RC_READLINE 0x10 /* memory read line */
#define SBTOPCI_RC_READMULTI 0x20 /* memory read multiple */
/* PCI core index in SROM shadow area */
#define SRSH_PI_OFFSET 0 /* first word */
#define SRSH_PI_MASK 0xf000 /* bit 15:12 */
#define SRSH_PI_SHIFT 12 /* bit 15:12 */
#endif /* _PCI_CORE_H_ */
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