diff options
Diffstat (limited to 'include/galileo/pci.h')
| -rw-r--r-- | include/galileo/pci.h | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/include/galileo/pci.h b/include/galileo/pci.h new file mode 100644 index 0000000000..f45dd3617e --- /dev/null +++ b/include/galileo/pci.h @@ -0,0 +1,113 @@ +/* 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 */ |