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Diffstat (limited to 'board/evb64260/memory.c')
| -rw-r--r-- | board/evb64260/memory.c | 457 |
1 files changed, 0 insertions, 457 deletions
diff --git a/board/evb64260/memory.c b/board/evb64260/memory.c deleted file mode 100644 index e339854..0000000 --- a/board/evb64260/memory.c +++ /dev/null @@ -1,457 +0,0 @@ -/* Memory.c - Memory mappings and remapping functions */ - -/* Copyright - Galileo technology. */ - -/* modified by Josh Huber to clean some things up, and - * fit it into the U-Boot framework */ - -#include <galileo/core.h> -#include <galileo/memory.h> - -/******************************************************************** -* memoryGetBankBaseAddress - Gets the base address of a memory bank -* - If the memory bank size is 0 then this base address has no meaning!!! -* -* -* INPUTS: MEMORY_BANK bank - The bank we ask for its base Address. -* OUTPUT: N/A -* RETURNS: Memory bank base address. -*********************************************************************/ -static unsigned long memoryGetBankRegOffset(MEMORY_BANK bank) -{ - switch (bank) - { - case BANK0: - return SCS_0_LOW_DECODE_ADDRESS; - case BANK1: - return SCS_1_LOW_DECODE_ADDRESS; - case BANK2: - return SCS_2_LOW_DECODE_ADDRESS; - case BANK3: - return SCS_3_LOW_DECODE_ADDRESS; - } - return SCS_0_LOW_DECODE_ADDRESS; /* default value */ -} - -unsigned int memoryGetBankBaseAddress(MEMORY_BANK bank) -{ - unsigned int base; - unsigned int regOffset=memoryGetBankRegOffset(bank); - - GT_REG_READ(regOffset,&base); - base = base << 20; - return base; -} - -/******************************************************************** -* memoryGetDeviceBaseAddress - Gets the base address of a device. -* - If the device size is 0 then this base address has no meaning!!! -* -* -* INPUT: DEVICE device - The device we ask for its base address. -* OUTPUT: N/A -* RETURNS: Device base address. -*********************************************************************/ -static unsigned int memoryGetDeviceRegOffset(DEVICE device) -{ - switch (device) - { - case DEVICE0: - return CS_0_LOW_DECODE_ADDRESS; - case DEVICE1: - return CS_1_LOW_DECODE_ADDRESS; - case DEVICE2: - return CS_2_LOW_DECODE_ADDRESS; - case DEVICE3: - return CS_3_LOW_DECODE_ADDRESS; - case BOOT_DEVICE: - return BOOTCS_LOW_DECODE_ADDRESS; - } - return CS_0_LOW_DECODE_ADDRESS; /* default value */ -} - -unsigned int memoryGetDeviceBaseAddress(DEVICE device) -{ - unsigned int regBase; - unsigned int regEnd; - unsigned int regOffset=memoryGetDeviceRegOffset(device); - - GT_REG_READ(regOffset, ®Base); - GT_REG_READ(regOffset+8, ®End); - - if(regEnd<=regBase) return 0xffffffff; /* ERROR !!! */ - - regBase = regBase << 20; - return regBase; -} - -/******************************************************************** -* memoryGetBankSize - Returns the size of a memory bank. -* -* -* INPUT: MEMORY_BANK bank - The bank we ask for its size. -* OUTPUT: N/A -* RETURNS: Memory bank size. -*********************************************************************/ -unsigned int memoryGetBankSize(MEMORY_BANK bank) -{ - unsigned int size,base; - unsigned int highValue; - unsigned int highAddress=memoryGetBankRegOffset(bank)+8; - - base = memoryGetBankBaseAddress(bank); - GT_REG_READ(highAddress,&highValue); - highValue = (highValue + 1) << 20; - if(base > highValue) - size=0; - else - size = highValue - base; - return size; -} - -/******************************************************************** -* memoryGetDeviceSize - Returns the size of a device memory space -* -* -* INPUT: DEVICE device - The device we ask for its base address. -* OUTPUT: N/A -* RETURNS: Size of a device memory space. -*********************************************************************/ -unsigned int memoryGetDeviceSize(DEVICE device) -{ - unsigned int size,base; - unsigned int highValue; - unsigned int highAddress=memoryGetDeviceRegOffset(device)+8; - - base = memoryGetDeviceBaseAddress(device); - GT_REG_READ(highAddress,&highValue); - if (highValue == 0xfff) - { - size = (~base) + 1; /* what the heck is this? */ - return size; - } - else - highValue = (highValue + 1) << 20; - - if(base > highValue) - size=0; - else - size = highValue - base; - return size; -} - -/******************************************************************** -* memoryGetDeviceWidth - A device can be with: 1,2,4 or 8 Bytes data width. -* The width is determine in registers: 'Device Parameters' -* registers (0x45c, 0x460, 0x464, 0x468, 0x46c - for each device. -* at bits: [21:20]. -* -* INPUT: DEVICE device - Device number -* OUTPUT: N/A -* RETURNS: Device width in Bytes (1,2,4 or 8), 0 if error had occurred. -*********************************************************************/ -unsigned int memoryGetDeviceWidth(DEVICE device) -{ - unsigned int width; - unsigned int regValue; - - GT_REG_READ(DEVICE_BANK0PARAMETERS + device*4,®Value); - width = (regValue & 0x00300000) >> 20; - switch (width) - { - case 0: - return 1; - case 1: - return 2; - case 2: - return 4; - case 3: - return 8; - default: - return 0; - } -} - -bool memoryMapBank(MEMORY_BANK bank, unsigned int bankBase,unsigned int bankLength) -{ - unsigned int low=0xfff; - unsigned int high=0x0; - unsigned int regOffset=memoryGetBankRegOffset(bank); - - if(bankLength!=0) { - low = (bankBase >> 20) & 0xffff; - high=((bankBase+bankLength)>>20)-1; - } - -#ifdef DEBUG - { - unsigned int oldLow, oldHigh; - GT_REG_READ(regOffset,&oldLow); - GT_REG_READ(regOffset+8,&oldHigh); - - printf("b%d %x-%x->%x-%x\n", bank, oldLow, oldHigh, low, high); - } -#endif - - GT_REG_WRITE(regOffset,low); - GT_REG_WRITE(regOffset+8,high); - - return true; -} -bool memoryMapDeviceSpace(DEVICE device, unsigned int deviceBase,unsigned int deviceLength) -{ - /* TODO: what are appropriate "unmapped" values? */ - unsigned int low=0xfff; - unsigned int high=0x0; - unsigned int regOffset=memoryGetDeviceRegOffset(device); - - if(deviceLength != 0) { - low=deviceBase>>20; - high=((deviceBase+deviceLength)>>20)-1; - } else { - /* big problems in here... */ - /* this will HANG */ - } - - GT_REG_WRITE(regOffset,low); - GT_REG_WRITE(regOffset+8,high); - - return true; -} - - -/******************************************************************** -* memoryMapInternalRegistersSpace - Sets new base address for the internals -* registers. -* -* INPUTS: unsigned int internalRegBase - The new base address. -* RETURNS: true on success, false on failure -*********************************************************************/ -bool memoryMapInternalRegistersSpace(unsigned int internalRegBase) -{ - unsigned int currentValue; - unsigned int internalValue = internalRegBase; - - internalRegBase = (internalRegBase >> 20); - GT_REG_READ(INTERNAL_SPACE_DECODE,¤tValue); - internalRegBase = (currentValue & 0xffff0000) | internalRegBase; - GT_REG_WRITE(INTERNAL_SPACE_DECODE,internalRegBase); - INTERNAL_REG_BASE_ADDR = internalValue; - return true; -} - -/******************************************************************** -* memoryGetInternalRegistersSpace - Gets internal registers Base Address. -* -* INPUTS: unsigned int internalRegBase - The new base address. -* RETURNS: true on success, false on failure -*********************************************************************/ -unsigned int memoryGetInternalRegistersSpace(void) -{ - return INTERNAL_REG_BASE_ADDR; -} - -/******************************************************************** -* memorySetProtectRegion - This function modifys one of the 8 regions with -* one of the three protection mode. -* - Be advised to check the spec before modifying them. -* -* -* Inputs: CPU_PROTECT_REGION - one of the eight regions. -* CPU_ACCESS - general access. -* CPU_WRITE - read only access. -* CPU_CACHE_PROTECT - chache access. -* we defining CPU because there is another protect from the pci SIDE. -* Returns: false if one of the parameters is wrong and true else -*********************************************************************/ -bool memorySetProtectRegion(MEMORY_PROTECT_REGION region, - MEMORY_ACCESS memAccess, - MEMORY_ACCESS_WRITE memWrite, - MEMORY_CACHE_PROTECT cacheProtection, - unsigned int baseAddress, - unsigned int regionLength) -{ - unsigned int protectHigh = baseAddress + regionLength; - - if(regionLength == 0) /* closing the region */ - { - GT_REG_WRITE(CPU_LOW_PROTECT_ADDRESS_0 + 0x10*region,0x0000ffff); - GT_REG_WRITE(CPU_HIGH_PROTECT_ADDRESS_0 + 0x10*region,0); - return true; - } - baseAddress = (baseAddress & 0xfff00000) >> 20; - baseAddress = baseAddress | memAccess << 16 | memWrite << 17 - | cacheProtection << 18; - GT_REG_WRITE(CPU_LOW_PROTECT_ADDRESS_0 + 0x10*region,baseAddress); - protectHigh = (protectHigh & 0xfff00000) >> 20; - GT_REG_WRITE(CPU_HIGH_PROTECT_ADDRESS_0 + 0x10*region,protectHigh - 1); - return true; -} - -/******************************************************************** -* memorySetRegionSnoopMode - This function modifys one of the 4 regions which -* supports Cache Coherency. -* -* -* Inputs: SNOOP_REGION region - One of the four regions. -* SNOOP_TYPE snoopType - There is four optional Types: -* 1. No Snoop. -* 2. Snoop to WT region. -* 3. Snoop to WB region. -* 4. Snoop & Invalidate to WB region. -* unsigned int baseAddress - Base Address of this region. -* unsigned int topAddress - Top Address of this region. -* Returns: false if one of the parameters is wrong and true else -*********************************************************************/ -bool memorySetRegionSnoopMode(MEMORY_SNOOP_REGION region, - MEMORY_SNOOP_TYPE snoopType, - unsigned int baseAddress, - unsigned int regionLength) -{ - unsigned int snoopXbaseAddress; - unsigned int snoopXtopAddress; - unsigned int data; - unsigned int snoopHigh = baseAddress + regionLength; - - if( (region > MEM_SNOOP_REGION3) || (snoopType > MEM_SNOOP_WB) ) - return false; - snoopXbaseAddress = SNOOP_BASE_ADDRESS_0 + 0x10 * region; - snoopXtopAddress = SNOOP_TOP_ADDRESS_0 + 0x10 * region; - if(regionLength == 0) /* closing the region */ - { - GT_REG_WRITE(snoopXbaseAddress,0x0000ffff); - GT_REG_WRITE(snoopXtopAddress,0); - return true; - } - baseAddress = baseAddress & 0xffff0000; - data = (baseAddress >> 16) | snoopType << 16; - GT_REG_WRITE(snoopXbaseAddress,data); - snoopHigh = (snoopHigh & 0xfff00000) >> 20; - GT_REG_WRITE(snoopXtopAddress,snoopHigh - 1); - return true; -} - -/******************************************************************** -* memoryRemapAddress - This fubction used for address remapping. -* -* -* Inputs: regOffset: remap register -* remapValue : -* Returns: false if one of the parameters is erroneous,true otherwise. -*********************************************************************/ -bool memoryRemapAddress(unsigned int remapReg, unsigned int remapValue) -{ - unsigned int valueForReg; - valueForReg = (remapValue & 0xfff00000) >> 20; - GT_REG_WRITE(remapReg, valueForReg); - return true; -} - -/******************************************************************** -* memoryGetDeviceParam - This function used for getting device parameters from -* DEVICE BANK PARAMETERS REGISTER -* -* -* Inputs: - deviceParam: STRUCT with paramiters for DEVICE BANK -* PARAMETERS REGISTER -* - deviceNum : number of device -* Returns: false if one of the parameters is erroneous,true otherwise. -*********************************************************************/ -bool memoryGetDeviceParam(DEVICE_PARAM *deviceParam, DEVICE deviceNum) -{ - unsigned int valueOfReg; - unsigned int calcData; - - GT_REG_READ(DEVICE_BANK0PARAMETERS + 4 * deviceNum, &valueOfReg); - calcData = (0x7 & valueOfReg) + ((0x400000 & valueOfReg) >> 19); - deviceParam -> turnOff = calcData; /* Turn Off */ - - calcData = ((0x78 & valueOfReg) >> 3) + ((0x800000 & valueOfReg) >> 19); - deviceParam -> acc2First = calcData; /* Access To First */ - - calcData = ((0x780 & valueOfReg) >> 7) + ((0x1000000 & valueOfReg) >> 20); - deviceParam -> acc2Next = calcData; /* Access To Next */ - - calcData = ((0x3800 & valueOfReg) >> 11) + ((0x2000000 & valueOfReg) >> 22); - deviceParam -> ale2Wr = calcData; /* Ale To Write */ - - calcData = ((0x1c000 & valueOfReg) >> 14) + ((0x4000000 & valueOfReg) >> 23); - deviceParam -> wrLow = calcData; /* Write Active */ - - calcData = ((0xe0000 & valueOfReg) >> 17) + ((0x8000000 & valueOfReg) >> 24); - deviceParam -> wrHigh = calcData; /* Write High */ - - calcData = ((0x300000 & valueOfReg) >> 20); - switch (calcData) - { - case 0: - deviceParam -> deviceWidth = 1; /* one Byte - 8-bit */ - break; - case 1: - deviceParam -> deviceWidth = 2; /* two Bytes - 16-bit */ - break; - case 2: - deviceParam -> deviceWidth = 4; /* four Bytes - 32-bit */ - break; - case 3: - deviceParam -> deviceWidth = 8; /* eight Bytes - 64-bit */ - break; - default: - deviceParam -> deviceWidth = 1; - break; - } - return true; -} - -/******************************************************************** -* memorySetDeviceParam - This function used for setting device parameters to -* DEVICE BANK PARAMETERS REGISTER -* -* -* Inputs: - deviceParam: STRUCT for store paramiters from DEVICE BANK -* PARAMETERS REGISTER -* - deviceNum : number of device -* Returns: false if one of the parameters is erroneous,true otherwise. -*********************************************************************/ -bool memorySetDeviceParam(DEVICE_PARAM *deviceParam, DEVICE deviceNum) -{ - unsigned int valueForReg; - - if((deviceParam -> turnOff >= 0xf) || (deviceParam -> acc2First >= 0x1f) || - (deviceParam -> acc2Next >= 0x1f) || (deviceParam -> ale2Wr >= 0xf) || - (deviceParam -> wrLow >= 0xf) || (deviceParam -> wrHigh >= 0xf)) - return false; - valueForReg = (((deviceParam -> turnOff) & 0x7) | - (((deviceParam -> turnOff) & 0x8) << 19) | - (((deviceParam -> acc2First) & 0xf) << 3) | - (((deviceParam -> acc2First) & 0x10) << 19) | - (((deviceParam -> acc2Next) & 0xf) << 7) | - (((deviceParam -> acc2Next) & 0x10) << 20) | - (((deviceParam -> ale2Wr) & 0x7) << 11) | - (((deviceParam -> ale2Wr) & 0xf) << 22) | - (((deviceParam -> wrLow) & 0x7) << 14) | - (((deviceParam -> wrLow) & 0xf) << 23) | - (((deviceParam -> wrHigh) & 0x7) << 17) | - (((deviceParam -> wrHigh) & 0xf) << 24)); - /* insert the device width: */ - switch(deviceParam->deviceWidth) - { - case 1: - valueForReg = valueForReg | _8BIT; - break; - case 2: - valueForReg = valueForReg | _16BIT; - break; - case 4: - valueForReg = valueForReg | _32BIT; - break; - case 8: - valueForReg = valueForReg | _64BIT; - break; - default: - valueForReg = valueForReg | _8BIT; - break; - } - GT_REG_WRITE(DEVICE_BANK0PARAMETERS + 4 * deviceNum, valueForReg); - return true; -} |