bridge.h

umon bootloader source code, support mips cpu.

#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 */