[people/ms/u-boot.git] / include / galileo / pci.h

/* PCI.h - PCI functions header file */

/* Copyright - Galileo technology. */

#ifndef __INCpcih
#define __INCpcih

/* includes */

#include "core.h"
#include "memory.h"

/* According to PCI REV 2.1 MAX agents allowed on the bus are -21- */
#define PCI_MAX_DEVICES 22


/* Macros */
#define     SELF                    32

/* Defines for the access regions. */
#define     PREFETCH_ENABLE                 BIT12
#define     PREFETCH_DISABLE                NO_BIT
#define     DELAYED_READ_ENABLE             BIT13
/* #define     CACHING_ENABLE                  BIT14 */
/* aggressive prefetch: PCI slave prefetch two burst in advance*/
#define     AGGRESSIVE_PREFETCH              BIT16
/* read line aggresive prefetch: PCI slave prefetch two burst in advance*/
#define     READ_LINE_AGGRESSIVE_PREFETCH   BIT17
/* read multiple aggresive prefetch: PCI slave prefetch two burst in advance*/
#define     READ_MULTI_AGGRESSIVE_PREFETCH  BIT18
#define     MAX_BURST_4                     NO_BIT
#define     MAX_BURST_8                     BIT20  /* Bits[21:20] = 01 */
#define     MAX_BURST_16                    BIT21  /* Bits[21:20] = 10 */
#define     PCI_BYTE_SWAP                   NO_BIT /* Bits[25:24] = 00 */
#define     PCI_NO_SWAP                     BIT24  /* Bits[25:24] = 01 */
#define     PCI_BYTE_AND_WORD_SWAP          BIT25  /* Bits[25:24] = 10 */
#define     PCI_WORD_SWAP                  (BIT24 | BIT25) /* Bits[25:24] = 11 */
#define     PCI_ACCESS_PROTECT              BIT28
#define     PCI_WRITE_PROTECT               BIT29

/* typedefs */

typedef enum __pciAccessRegions{REGION0,REGION1,REGION2,REGION3,REGION4,REGION5,
				REGION6,REGION7} PCI_ACCESS_REGIONS;

typedef enum __pciAgentPrio{LOW_AGENT_PRIO,HI_AGENT_PRIO} PCI_AGENT_PRIO;
typedef enum __pciAgentPark{PARK_ON_AGENT,DONT_PARK_ON_AGENT} PCI_AGENT_PARK;

typedef enum __pciSnoopType{PCI_NO_SNOOP,PCI_SNOOP_WT,PCI_SNOOP_WB}
			    PCI_SNOOP_TYPE;
typedef enum __pciSnoopRegion{PCI_SNOOP_REGION0,PCI_SNOOP_REGION1,
			      PCI_SNOOP_REGION2,PCI_SNOOP_REGION3}
			      PCI_SNOOP_REGION;

typedef enum __memPciHost{PCI_HOST0,PCI_HOST1} PCI_HOST;
typedef enum __memPciRegion{PCI_REGION0,PCI_REGION1,
			 PCI_REGION2,PCI_REGION3,
			 PCI_IO}
			 PCI_REGION;

/* read/write configuration registers on local PCI bus. */
void pciWriteConfigReg(PCI_HOST host, unsigned int regOffset,
		       unsigned int pciDevNum, unsigned int data);
unsigned int pciReadConfigReg (PCI_HOST host, unsigned int regOffset,
			       unsigned int pciDevNum);

/* read/write configuration registers on another PCI bus. */
void pciOverBridgeWriteConfigReg(PCI_HOST host,
				 unsigned int regOffset,
				 unsigned int pciDevNum,
				 unsigned int busNum,unsigned int data);
unsigned int pciOverBridgeReadConfigReg(PCI_HOST host,
					unsigned int regOffset,
					unsigned int pciDevNum,
					unsigned int busNum);

/*      Master`s memory space   */
bool pciMapSpace(PCI_HOST host, PCI_REGION region,
		unsigned int remapBase,
		unsigned int deviceBase,
		unsigned int deviceLength);
unsigned int pciGetSpaceBase(PCI_HOST host, PCI_REGION region);
unsigned int pciGetSpaceSize(PCI_HOST host, PCI_REGION region);

/*      Slave`s memory space   */
void pciMapMemoryBank(PCI_HOST host, MEMORY_BANK bank,
		      unsigned int pci0Dram0Base, unsigned int pci0Dram0Size);

/* PCI region options */

bool  pciSetRegionFeatures(PCI_HOST host, PCI_ACCESS_REGIONS region,
	unsigned int features, unsigned int baseAddress,
	unsigned int regionLength);

void  pciDisableAccessRegion(PCI_HOST host, PCI_ACCESS_REGIONS region);

/* PCI arbiter */

bool pciArbiterEnable(PCI_HOST host);
bool pciArbiterDisable(PCI_HOST host);
bool pciParkingDisable(PCI_HOST host, PCI_AGENT_PARK internalAgent,
			PCI_AGENT_PARK externalAgent0,
			PCI_AGENT_PARK externalAgent1,
			PCI_AGENT_PARK externalAgent2,
			PCI_AGENT_PARK externalAgent3,
			PCI_AGENT_PARK externalAgent4,
			PCI_AGENT_PARK externalAgent5);
bool pciSetRegionSnoopMode(PCI_HOST host, PCI_SNOOP_REGION region,
			    PCI_SNOOP_TYPE snoopType,
			    unsigned int baseAddress,
			    unsigned int regionLength);

#endif /* __INCpcih */
Commit	Line	Data
fe8c2806 WD	1	/* PCI.h - PCI functions header file */
	2
	3	/* Copyright - Galileo technology. */
	4
	5	#ifndef __INCpcih
	6	#define __INCpcih
	7
	8	/* includes */
	9
	10	#include "core.h"
	11	#include "memory.h"
	12
	13	/* According to PCI REV 2.1 MAX agents allowed on the bus are -21- */
	14	#define PCI_MAX_DEVICES 22
	15
	16
	17	/* Macros */
	18	#define SELF 32
	19
	20	/* Defines for the access regions. */
	21	#define PREFETCH_ENABLE BIT12
	22	#define PREFETCH_DISABLE NO_BIT
	23	#define DELAYED_READ_ENABLE BIT13
	24	/* #define CACHING_ENABLE BIT14 */
	25	/* aggressive prefetch: PCI slave prefetch two burst in advance*/
	26	#define AGGRESSIVE_PREFETCH BIT16
	27	/* read line aggresive prefetch: PCI slave prefetch two burst in advance*/
	28	#define READ_LINE_AGGRESSIVE_PREFETCH BIT17
	29	/* read multiple aggresive prefetch: PCI slave prefetch two burst in advance*/
	30	#define READ_MULTI_AGGRESSIVE_PREFETCH BIT18
	31	#define MAX_BURST_4 NO_BIT
	32	#define MAX_BURST_8 BIT20 /* Bits[21:20] = 01 */
	33	#define MAX_BURST_16 BIT21 /* Bits[21:20] = 10 */
	34	#define PCI_BYTE_SWAP NO_BIT /* Bits[25:24] = 00 */
	35	#define PCI_NO_SWAP BIT24 /* Bits[25:24] = 01 */
	36	#define PCI_BYTE_AND_WORD_SWAP BIT25 /* Bits[25:24] = 10 */
	37	#define PCI_WORD_SWAP (BIT24 \| BIT25) /* Bits[25:24] = 11 */
	38	#define PCI_ACCESS_PROTECT BIT28
	39	#define PCI_WRITE_PROTECT BIT29
	40
	41	/* typedefs */
	42
	43	typedef enum __pciAccessRegions{REGION0,REGION1,REGION2,REGION3,REGION4,REGION5,
8bde7f77	44	REGION6,REGION7} PCI_ACCESS_REGIONS;
fe8c2806 WD	45
	46	typedef enum __pciAgentPrio{LOW_AGENT_PRIO,HI_AGENT_PRIO} PCI_AGENT_PRIO;
	47	typedef enum __pciAgentPark{PARK_ON_AGENT,DONT_PARK_ON_AGENT} PCI_AGENT_PARK;
	48
	49	typedef enum __pciSnoopType{PCI_NO_SNOOP,PCI_SNOOP_WT,PCI_SNOOP_WB}
8bde7f77	50	PCI_SNOOP_TYPE;
fe8c2806	51	typedef enum __pciSnoopRegion{PCI_SNOOP_REGION0,PCI_SNOOP_REGION1,
8bde7f77 WD	52	PCI_SNOOP_REGION2,PCI_SNOOP_REGION3}
8bde7f77 WD	53	PCI_SNOOP_REGION;
fe8c2806 WD	54
	55	typedef enum __memPciHost{PCI_HOST0,PCI_HOST1} PCI_HOST;
	56	typedef enum __memPciRegion{PCI_REGION0,PCI_REGION1,
8bde7f77	57	PCI_REGION2,PCI_REGION3,
fe8c2806 WD	58	PCI_IO}
	59	PCI_REGION;
	60
	61	/* read/write configuration registers on local PCI bus. */
	62	void pciWriteConfigReg(PCI_HOST host, unsigned int regOffset,
	63	unsigned int pciDevNum, unsigned int data);
	64	unsigned int pciReadConfigReg (PCI_HOST host, unsigned int regOffset,
8bde7f77	65	unsigned int pciDevNum);
fe8c2806 WD	66
	67	/* read/write configuration registers on another PCI bus. */
	68	void pciOverBridgeWriteConfigReg(PCI_HOST host,
	69	unsigned int regOffset,
8bde7f77 WD	70	unsigned int pciDevNum,
8bde7f77 WD	71	unsigned int busNum,unsigned int data);
fe8c2806 WD	72	unsigned int pciOverBridgeReadConfigReg(PCI_HOST host,
fe8c2806 WD	73	unsigned int regOffset,
8bde7f77 WD	74	unsigned int pciDevNum,
8bde7f77 WD	75	unsigned int busNum);
fe8c2806 WD	76
	77	/* Master`s memory space */
	78	bool pciMapSpace(PCI_HOST host, PCI_REGION region,
	79	unsigned int remapBase,
	80	unsigned int deviceBase,
8bde7f77	81	unsigned int deviceLength);
fe8c2806 WD	82	unsigned int pciGetSpaceBase(PCI_HOST host, PCI_REGION region);
	83	unsigned int pciGetSpaceSize(PCI_HOST host, PCI_REGION region);
	84
	85	/* Slave`s memory space */
	86	void pciMapMemoryBank(PCI_HOST host, MEMORY_BANK bank,
	87	unsigned int pci0Dram0Base, unsigned int pci0Dram0Size);
	88
	89	/* PCI region options */
	90
	91	bool pciSetRegionFeatures(PCI_HOST host, PCI_ACCESS_REGIONS region,
	92	unsigned int features, unsigned int baseAddress,
	93	unsigned int regionLength);
	94
	95	void pciDisableAccessRegion(PCI_HOST host, PCI_ACCESS_REGIONS region);
	96
	97	/* PCI arbiter */
	98
	99	bool pciArbiterEnable(PCI_HOST host);
	100	bool pciArbiterDisable(PCI_HOST host);
	101	bool pciParkingDisable(PCI_HOST host, PCI_AGENT_PARK internalAgent,
8bde7f77 WD	102	PCI_AGENT_PARK externalAgent0,
	103	PCI_AGENT_PARK externalAgent1,
	104	PCI_AGENT_PARK externalAgent2,
	105	PCI_AGENT_PARK externalAgent3,
	106	PCI_AGENT_PARK externalAgent4,
	107	PCI_AGENT_PARK externalAgent5);
fe8c2806 WD	108	bool pciSetRegionSnoopMode(PCI_HOST host, PCI_SNOOP_REGION region,
fe8c2806 WD	109	PCI_SNOOP_TYPE snoopType,
8bde7f77 WD	110	unsigned int baseAddress,
8bde7f77 WD	111	unsigned int regionLength);
fe8c2806 WD	112
fe8c2806 WD	113	#endif /* __INCpcih */