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174 lines
7 KiB
C
174 lines
7 KiB
C
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/* Memory.h - Memory mappings and remapping functions declarations */
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/* Copyright - Galileo technology. */
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#ifndef __INCmemoryh
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#define __INCmemoryh
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/* includes */
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#include "core.h"
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/* defines */
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#define DONT_MODIFY 0xffffffff
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#define PARITY_SUPPORT 0x40000000
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#define MINIMUM_MEM_BANK_SIZE 0x10000
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#define MINIMUM_DEVICE_WINDOW_SIZE 0x10000
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#define MINIMUM_PCI_WINDOW_SIZE 0x10000
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#define MINIMUM_ACCESS_WIN_SIZE 0x10000
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#define _8BIT 0x00000000
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#define _16BIT 0x00100000
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#define _32BIT 0x00200000
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#define _64BIT 0x00300000
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/* typedefs */
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typedef struct deviceParam
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{ /* boundary values */
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unsigned int turnOff; /* 0x0 - 0xf */
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unsigned int acc2First; /* 0x0 - 0x1f */
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unsigned int acc2Next; /* 0x0 - 0x1f */
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unsigned int ale2Wr; /* 0x0 - 0xf */
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unsigned int wrLow; /* 0x0 - 0xf */
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unsigned int wrHigh; /* 0x0 - 0xf */
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unsigned int badrSkew; /* 0x0 - 0x2 */
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unsigned int DPEn; /* 0x0 - 0x1 */
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unsigned int deviceWidth; /* in Bytes */
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} DEVICE_PARAM;
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typedef enum __memBank{BANK0,BANK1,BANK2,BANK3} MEMORY_BANK;
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typedef enum __memDevice{DEVICE0,DEVICE1,DEVICE2,DEVICE3,BOOT_DEVICE} DEVICE;
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/*typedef enum __memoryProtectRegion{MEM_REGION0,MEM_REGION1,MEM_REGION2, \
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MEM_REGION3,MEM_REGION4,MEM_REGION5, \
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MEM_REGION6,MEM_REGION7} \
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MEMORY_PROTECT_REGION;*/
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/* There are four possible windows that can be defined as protected */
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typedef enum _memoryProtectWindow{MEM_WINDOW0,MEM_WINDOW1,MEM_WINDOW2,
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MEM_WINDOW3
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} MEMORY_PROTECT_WINDOW;
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/* When defining a protected window , this paramter indicates whether it
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is accessible or not */
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typedef enum __memoryAccess{MEM_ACCESS_ALLOWED,MEM_ACCESS_FORBIDEN} \
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MEMORY_ACCESS;
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typedef enum __memoryWrite{MEM_WRITE_ALLOWED,MEM_WRITE_FORBIDEN} \
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MEMORY_ACCESS_WRITE;
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typedef enum __memoryCacheProtect{MEM_CACHE_ALLOWED,MEM_CACHE_FORBIDEN} \
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MEMORY_CACHE_PROTECT;
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typedef enum __memorySnoopType{MEM_NO_SNOOP,MEM_SNOOP_WT,MEM_SNOOP_WB} \
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MEMORY_SNOOP_TYPE;
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typedef enum __memorySnoopRegion{MEM_SNOOP_REGION0,MEM_SNOOP_REGION1, \
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MEM_SNOOP_REGION2,MEM_SNOOP_REGION3} \
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MEMORY_SNOOP_REGION;
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/* There are 21 memory windows dedicated for the varios interfaces (PCI,
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devCS (devices), CS(DDR), interenal registers and SRAM) used by the CPU's
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address decoding mechanism. */
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typedef enum _memoryWindow {CS_0_WINDOW = BIT0, CS_1_WINDOW = BIT1,
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CS_2_WINDOW = BIT2, CS_3_WINDOW = BIT3,
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DEVCS_0_WINDOW = BIT4, DEVCS_1_WINDOW = BIT5,
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DEVCS_2_WINDOW = BIT6, DEVCS_3_WINDOW = BIT7,
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BOOT_CS_WINDOW = BIT8, PCI_0_IO_WINDOW = BIT9,
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PCI_0_MEM0_WINDOW = BIT10,
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PCI_0_MEM1_WINDOW = BIT11,
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PCI_0_MEM2_WINDOW = BIT12,
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PCI_0_MEM3_WINDOW = BIT13, PCI_1_IO_WINDOW = BIT14,
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PCI_1_MEM0_WINDOW = BIT15, PCI_1_MEM1_WINDOW =BIT16,
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PCI_1_MEM2_WINDOW = BIT17, PCI_1_MEM3_WINDOW =BIT18,
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INTEGRATED_SRAM_WINDOW = BIT19,
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INTERNAL_SPACE_WINDOW = BIT20,
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ALL_WINDOWS = 0X1FFFFF
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} MEMORY_WINDOW;
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typedef enum _memoryWindowStatus {MEM_WINDOW_ENABLED,MEM_WINDOW_DISABLED
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} MEMORY_WINDOW_STATUS;
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typedef enum _pciMemWindow{PCI_0_IO,PCI_0_MEM0,PCI_0_MEM1,PCI_0_MEM2,PCI_0_MEM3
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#ifdef INCLUDE_PCI_1
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,PCI_1_IO,PCI_1_MEM0,PCI_1_MEM1,PCI_1_MEM2,PCI_1_MEM3
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#endif /* INCLUDE_PCI_1 */
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} PCI_MEM_WINDOW;
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/* -------------------------------------------------------------------------------------------------*/
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/* functions */
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unsigned int memoryGetBankBaseAddress(MEMORY_BANK bank);
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unsigned int memoryGetDeviceBaseAddress(DEVICE device);
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/* New at MV6436x */
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unsigned int MemoryGetPciBaseAddr(PCI_MEM_WINDOW pciWindow);
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unsigned int memoryGetBankSize(MEMORY_BANK bank);
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unsigned int memoryGetDeviceSize(DEVICE device);
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unsigned int memoryGetDeviceWidth(DEVICE device);
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/* New at MV6436x */
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unsigned int gtMemoryGetPciWindowSize(PCI_MEM_WINDOW pciWindow);
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/* when given base Address and size Set new WINDOW for SCS_X. (X = 0,1,2 or 3*/
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bool memoryMapBank(MEMORY_BANK bank, unsigned int bankBase,unsigned int bankLength);
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/* Set a new base and size for one of the memory banks (CS0 - CS3) */
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bool gtMemorySetMemoryBank(MEMORY_BANK bank, unsigned int bankBase,
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unsigned int bankSize);
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bool memoryMapDeviceSpace(DEVICE device, unsigned int deviceBase,unsigned int deviceLength);
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/* Change the Internal Register Base Address to a new given Address. */
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bool memoryMapInternalRegistersSpace(unsigned int internalRegBase);
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/* returns internal Register Space Base Address. */
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unsigned int memoryGetInternalRegistersSpace(void);
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/* Returns the integrated SRAM Base Address. */
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unsigned int memoryGetInternalSramBaseAddr(void);
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/* -------------------------------------------------------------------------------------------------*/
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/* Set new base address for the integrated SRAM. */
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void memorySetInternalSramBaseAddr(unsigned int sramBaseAddress);
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/* -------------------------------------------------------------------------------------------------*/
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/* Delete a protection feature to a given space. */
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void memoryDisableProtectRegion(MEMORY_PROTECT_WINDOW window);
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/* -------------------------------------------------------------------------------------------------*/
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/* Writes a new remap value to the remap register */
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unsigned int memorySetPciRemapValue(PCI_MEM_WINDOW memoryWindow,
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unsigned int remapValueHigh,
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unsigned int remapValueLow);
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/* -------------------------------------------------------------------------------------------------*/
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/* Configurate the protection feature to a given space. */
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bool memorySetProtectRegion(MEMORY_PROTECT_WINDOW window,
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MEMORY_ACCESS gtMemoryAccess,
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MEMORY_ACCESS_WRITE gtMemoryWrite,
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MEMORY_CACHE_PROTECT cacheProtection,
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unsigned int baseAddress,
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unsigned int size);
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/* Configurate the protection feature to a given space. */
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/*bool memorySetProtectRegion(MEMORY_PROTECT_REGION region,
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MEMORY_ACCESS memoryAccess,
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MEMORY_ACCESS_WRITE memoryWrite,
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MEMORY_CACHE_PROTECT cacheProtection,
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unsigned int baseAddress,
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unsigned int regionLength); */
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/* Configurate the snoop feature to a given space. */
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bool memorySetRegionSnoopMode(MEMORY_SNOOP_REGION region,
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MEMORY_SNOOP_TYPE snoopType,
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unsigned int baseAddress,
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unsigned int regionLength);
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bool memoryRemapAddress(unsigned int remapReg, unsigned int remapValue);
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bool memoryGetDeviceParam(DEVICE_PARAM *deviceParam, DEVICE deviceNum);
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bool memorySetDeviceParam(DEVICE_PARAM *deviceParam, DEVICE deviceNum);
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/* Set a new base and size for one of the PCI windows. */
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bool memorySetPciWindow(PCI_MEM_WINDOW pciWindow, unsigned int pciWindowBase,
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unsigned int pciWindowSize);
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/* Disable or enable one of the 21 windows dedicated for the CPU's
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address decoding mechanism */
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void MemoryDisableWindow(MEMORY_WINDOW window);
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void MemoryEnableWindow (MEMORY_WINDOW window);
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MEMORY_WINDOW_STATUS MemoryGetMemWindowStatus(MEMORY_WINDOW window);
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#endif /* __INCmemoryh */
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