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Diffstat (limited to 'board/Marvell/common/memory.c')
| -rw-r--r-- | board/Marvell/common/memory.c | 1374 |
1 files changed, 0 insertions, 1374 deletions
diff --git a/board/Marvell/common/memory.c b/board/Marvell/common/memory.c deleted file mode 100644 index 610b411faa..0000000000 --- a/board/Marvell/common/memory.c +++ /dev/null @@ -1,1374 +0,0 @@ -/* - * Copyright - Galileo technology. - * - * SPDX-License-Identifier: GPL-2.0+ - */ - -/* - * - * written or collected and sometimes rewritten by - * Ingo Assmus <ingo.assmus@keymile.com> - * - */ - - -#include <common.h> -#include "../include/core.h" -#include "../include/memory.h" - -/******************************************************************************* -* memoryGetBankBaseAddress - Returns the base address of a memory bank. -* DESCRIPTION: -* This function returns the base address of one of the SDRAM's memory -* banks. There are 4 memory banks and each one represents one DIMM side. -* INPUT: -* MEMORY_BANK bank - Selects one of the four banks as defined in Memory.h. -* OUTPUT: -* None. -* RETURN: -* 32 bit 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 << 16; /* MV6436x */ - return base; -} - -/******************************************************************************* -* memoryGetDeviceBaseAddress - Returns the base address of a device. -* DESCRIPTION: -* This function returns the base address of a device on the system. There -* are 5 possible devices (0 - 4 and one boot device) as defined in -* gtMemory.h. Each of the device parameters is maped to one of the CS -* (Devices chip selects) base address register. -* INPUT: -* device - Selects one of the five devices as defined in Memory.h. -* OUTPUT: -* None. -* RETURN: -* 32 bit 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 regOffset = memoryGetDeviceRegOffset (device); - - GT_REG_READ (regOffset, ®Base); - - regBase = regBase << 16; /* MV6436x */ - return regBase; -} - -/******************************************************************************* -* MemoryGetPciBaseAddr - Returns the base address of a PCI window. -* DESCRIPTION: -* This function returns the base address of a PCI window. There are 5 -* possible PCI windows (memory 0 - 3 and one for I/O) for each PCI -* interface as defined in gtMemory.h, used by the CPU's address decoding -* mechanism. -* New in MV6436x -* INPUT: -* pciWindow - Selects one of the PCI windows as defined in Memory.h. -* OUTPUT: -* None. -* RETURN: -* 32 bit PCI window base address. -*******************************************************************************/ -unsigned int MemoryGetPciBaseAddr (PCI_MEM_WINDOW pciWindow) -{ - unsigned int baseAddrReg, base; - - switch (pciWindow) { - case PCI_0_IO: - baseAddrReg = PCI_0I_O_LOW_DECODE_ADDRESS; /*PCI_0_IO_BASE_ADDR; */ - break; - case PCI_0_MEM0: - baseAddrReg = PCI_0MEMORY0_LOW_DECODE_ADDRESS; /*PCI_0_MEMORY0_BASE_ADDR; */ - break; - case PCI_0_MEM1: - baseAddrReg = PCI_0MEMORY1_LOW_DECODE_ADDRESS; /*PCI_0_MEMORY1_BASE_ADDR; */ - break; - case PCI_0_MEM2: - baseAddrReg = PCI_0MEMORY2_LOW_DECODE_ADDRESS; /*PCI_0_MEMORY2_BASE_ADDR; */ - break; - case PCI_0_MEM3: - baseAddrReg = PCI_0MEMORY3_LOW_DECODE_ADDRESS; /*PCI_0_MEMORY3_BASE_ADDR; */ - break; -#ifdef INCLUDE_PCI_1 - case PCI_1_IO: - baseAddrReg = PCI_1I_O_LOW_DECODE_ADDRESS; /*PCI_1_IO_BASE_ADDR; */ - break; - case PCI_1_MEM0: - baseAddrReg = PCI_1MEMORY0_LOW_DECODE_ADDRESS; /*PCI_1_MEMORY0_BASE_ADDR; */ - break; - case PCI_1_MEM1: - baseAddrReg = PCI_1MEMORY1_LOW_DECODE_ADDRESS; /*PCI_1_MEMORY1_BASE_ADDR; */ - break; - case PCI_1_MEM2: - baseAddrReg = PCI_1MEMORY2_LOW_DECODE_ADDRESS; /*PCI_1_MEMORY2_BASE_ADDR; */ - break; - case PCI_1_MEM3: - baseAddrReg = PCI_1MEMORY3_LOW_DECODE_ADDRESS; /*PCI_1_MEMORY3_BASE_ADDR; */ - break; -#endif /* INCLUDE_PCI_1 */ - default: - return 0xffffffff; - } - GT_REG_READ (baseAddrReg, &base); - return (base << 16); -} - -/******************************************************************************* -* memoryGetBankSize - Returns the size of a memory bank. -* DESCRIPTION: -* This function returns the size of memory bank as described in -* 'gtMemoryGetBankBaseAddress' function. -* INPUT: -* bank - Selects one of the four banks as defined in Memory.h. -* OUTPUT: -* None. -* RETURN: -* 32 bit size memory bank size or 0 for a closed or non populated bank. -* -*******************************************************************************/ -unsigned int memoryGetBankSize (MEMORY_BANK bank) -{ - unsigned int sizeReg, size; - MEMORY_WINDOW window; - - switch (bank) { - case BANK0: - sizeReg = SCS_0_HIGH_DECODE_ADDRESS; /* CS_0_SIZE; */ - window = CS_0_WINDOW; - break; - case BANK1: - sizeReg = SCS_1_HIGH_DECODE_ADDRESS; /* CS_1_SIZE; */ - window = CS_1_WINDOW; - break; - case BANK2: - sizeReg = SCS_2_HIGH_DECODE_ADDRESS; /* CS_2_SIZE; */ - window = CS_2_WINDOW; - break; - case BANK3: - sizeReg = SCS_3_HIGH_DECODE_ADDRESS; /* CS_3_SIZE; */ - window = CS_3_WINDOW; - break; - default: - return 0; - break; - } - /* If the window is closed, a size of 0 is returned */ - if (MemoryGetMemWindowStatus (window) != MEM_WINDOW_ENABLED) - return 0; - GT_REG_READ (sizeReg, &size); - size = ((size << 16) | 0xffff) + 1; - return size; -} - -/******************************************************************************* -* memoryGetDeviceSize - Returns the size of a device memory space. -* DESCRIPTION: -* This function returns the memory space size of a given device. -* INPUT: -* device - Selects one of the five devices as defined in Memory.h. -* OUTPUT: -* None. -* RETURN: -* 32 bit size of a device memory space. -*******************************************************************************/ -unsigned int memoryGetDeviceSize (DEVICE device) -{ - unsigned int sizeReg, size; - MEMORY_WINDOW window; - - switch (device) { - case DEVICE0: - sizeReg = CS_0_HIGH_DECODE_ADDRESS; /*DEV_CS0_SIZE; */ - window = DEVCS_0_WINDOW; - break; - case DEVICE1: - sizeReg = CS_1_HIGH_DECODE_ADDRESS; /*DEV_CS1_SIZE; */ - window = DEVCS_1_WINDOW; - break; - case DEVICE2: - sizeReg = CS_2_HIGH_DECODE_ADDRESS; /*DEV_CS2_SIZE; */ - window = DEVCS_2_WINDOW; - break; - case DEVICE3: - sizeReg = CS_3_HIGH_DECODE_ADDRESS; /*DEV_CS3_SIZE; */ - window = DEVCS_3_WINDOW; - break; - case BOOT_DEVICE: - sizeReg = BOOTCS_HIGH_DECODE_ADDRESS; /*BOOTCS_SIZE; */ - window = BOOT_CS_WINDOW; - break; - default: - return 0; - break; - } - /* If the window is closed, a size of 0 is returned */ - if (MemoryGetMemWindowStatus (window) != MEM_WINDOW_ENABLED) - return 0; - GT_REG_READ (sizeReg, &size); - size = ((size << 16) | 0xffff) + 1; - return size; -} - -/******************************************************************************* -* MemoryGetPciWindowSize - Returns the size of a PCI memory window. -* DESCRIPTION: -* This function returns the size of a PCI window. -* INPUT: -* pciWindow - Selects one of the PCI memory windows as defined in -* Memory.h. -* OUTPUT: -* None. -* RETURN: -* 32 bit size of a PCI memory window. -*******************************************************************************/ -unsigned int MemoryGetPciWindowSize (PCI_MEM_WINDOW pciWindow) -{ - unsigned int sizeReg, size; - - switch (pciWindow) { - case PCI_0_IO: - sizeReg = PCI_0I_O_HIGH_DECODE_ADDRESS; /*PCI_0_IO_SIZE; */ - break; - case PCI_0_MEM0: - sizeReg = PCI_0MEMORY0_HIGH_DECODE_ADDRESS; /*PCI_0_MEMORY0_SIZE; */ - break; - case PCI_0_MEM1: - sizeReg = PCI_0MEMORY1_HIGH_DECODE_ADDRESS; /*PCI_0_MEMORY1_SIZE; */ - break; - case PCI_0_MEM2: - sizeReg = PCI_0MEMORY2_HIGH_DECODE_ADDRESS; /*PCI_0_MEMORY2_SIZE; */ - break; - case PCI_0_MEM3: - sizeReg = PCI_0MEMORY3_HIGH_DECODE_ADDRESS; /*PCI_0_MEMORY3_SIZE; */ - break; -#ifdef INCLUDE_PCI_1 - case PCI_1_IO: - sizeReg = PCI_1I_O_HIGH_DECODE_ADDRESS; /*PCI_1_IO_SIZE; */ - break; - case PCI_1_MEM0: - sizeReg = PCI_1MEMORY0_HIGH_DECODE_ADDRESS; /*PCI_1_MEMORY0_SIZE; */ - break; - case PCI_1_MEM1: - sizeReg = PCI_1MEMORY1_HIGH_DECODE_ADDRESS; /*PCI_1_MEMORY1_SIZE; */ - break; - case PCI_1_MEM2: - sizeReg = PCI_1MEMORY2_HIGH_DECODE_ADDRESS; /*PCI_1_MEMORY2_SIZE; */ - break; - case PCI_1_MEM3: - sizeReg = PCI_1MEMORY3_HIGH_DECODE_ADDRESS; /*PCI_1_MEMORY3_SIZE; */ - break; -#endif /* INCLUDE_PCI_1 */ - default: - return 0x0; - } - /* If the memory window is disabled, retrun size = 0 */ - if (MemoryGetMemWindowStatus (PCI_0_IO_WINDOW << pciWindow) - == MEM_WINDOW_DISABLED) - return 0; - GT_REG_READ (sizeReg, &size); - size = ((size << 16) | 0xffff) + 1; - return size; -} - -/******************************************************************************* -* memoryGetDeviceWidth - Returns the width of a given device. -* DESCRIPTION: -* The MV's device interface supports up to 32 Bit wide devices. A device -* can have a 1, 2, 4 or 8 Bytes data width. This function returns the -* width of a device as defined by the user or the operating system. -* INPUT: -* device - Selects one of the five devices as defined in Memory.h. -* OUTPUT: -* None. -* RETURN: -* 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 & (BIT20 | BIT21)) >> 20; - return (BIT0 << width); -} - -/******************************************************************************* -* memoryMapBank - Set new base address and size for one of the memory -* banks. -* -* DESCRIPTION: -* The CPU interface address decoding map consists of 21 address windows -* for the different devices (e.g. CS[3:0] ,PCI0 Mem 0/1/2/3...). Each -* window can have a minimum of 1Mbytes of address space, and up to 4Gbyte -* space. Each address window is defined by two registers - base and size. -* The CPU address is compared with the values in the various CPU windows -* until a match is found and the address is than targeted to that window. -* This function sets new base and size for one the memory banks -* (CS0 - CS3). It is the programmer`s responsibility to make sure that -* there are no conflicts with other memory spaces. When two memory spaces -* overlap, the MV's behavior is not defined .If a bank needs to be closed, -* set the 'bankLength' parameter size to 0x0. -* -* INPUT: -* bank - One of the memory banks (CS0-CS3) as defined in gtMemory.h. -* bankBase - The memory bank base address. -* bankLength - The memory bank size. This function will decrement the -* 'bankLength' parameter by one and then check if the size is -* valid. A valid size must be programed from LSB to MSB as -* sequence of '1's followed by sequence of '0's. -* To close a memory window simply set the size to 0. -* NOTE!!! -* The size must be in 64Kbyte granularity. -* The base address must be aligned to the size. -* OUTPUT: -* None. -* RETURN: -* false for invalid size, true otherwise. -* -* CAUTION: PCI_functions must be implemented later To_do !!!!!!!!!!!!!!!!! -* -*******************************************************************************/ - -bool memoryMapBank (MEMORY_BANK bank, unsigned int bankBase, - unsigned int bankLength) -{ - unsigned int newBase, newSize, baseReg, sizeReg, temp, rShift; - -/* PCI_INTERNAL_BAR pciBAR; */ - - switch (bank) { - case BANK0: - baseReg = SCS_0_LOW_DECODE_ADDRESS; /*CS_0_BASE_ADDR; */ - sizeReg = SCS_0_HIGH_DECODE_ADDRESS; /*CS_0_SIZE; */ -/* pciBAR = PCI_CS0_BAR; */ - break; - case BANK1: - baseReg = SCS_1_LOW_DECODE_ADDRESS; /*CS_1_BASE_ADDR; */ - sizeReg = SCS_1_HIGH_DECODE_ADDRESS; /*CS_1_SIZE; */ - /* pciBAR = SCS_0_HIGH_DECODE_ADDRESS; */ /*PCI_CS1_BAR; */ - break; - case BANK2: - baseReg = SCS_2_LOW_DECODE_ADDRESS; /*CS_2_BASE_ADDR; */ - sizeReg = SCS_2_HIGH_DECODE_ADDRESS; /*CS_2_SIZE; */ -/* pciBAR = PCI_CS2_BAR;*/ - break; - case BANK3: - baseReg = SCS_3_LOW_DECODE_ADDRESS; /*CS_3_BASE_ADDR; */ - sizeReg = SCS_3_HIGH_DECODE_ADDRESS; /*CS_3_SIZE; */ -/* pciBAR = PCI_CS3_BAR; */ - break; - default: - return false; - } - /* If the size is 0, the window will be disabled */ - if (bankLength == 0) { - MemoryDisableWindow (CS_0_WINDOW << bank); - /* Disable the BAR from the PCI slave side */ -/* gtPci0DisableInternalBAR(pciBAR); */ -/* gtPci1DisableInternalBAR(pciBAR); */ - return true; - } - /* The base address must be aligned to the size */ - if ((bankBase % bankLength) != 0) { - return false; - } - if (bankLength >= MINIMUM_MEM_BANK_SIZE) { - newBase = bankBase >> 16; - newSize = bankLength >> 16; - /* Checking that the size is a sequence of '1' followed by a - sequence of '0' starting from LSB to MSB. */ - temp = newSize - 1; - for (rShift = 0; rShift < 16; rShift++) { - temp = temp >> rShift; - if ((temp & 0x1) == 0) { /* Either we got to the last '1' */ - /* or the size is not valid */ - if (temp > 0x0) - return false; - else - break; - } - } -#ifdef DEBUG - { - unsigned int oldBase, oldSize; - - GT_REG_READ (baseReg, &oldBase); - GT_REG_READ (sizeReg + 8, &oldSize); - - printf ("b%d Base:%x Size:%x -> Base:%x Size:%x\n", - bank, oldBase, oldSize, newBase, newSize); - } -#endif - /* writing the new values */ - GT_REG_WRITE (baseReg, newBase); - GT_REG_WRITE (sizeReg, newSize - 1); - /* Enable back the window */ - MemoryEnableWindow (CS_0_WINDOW << bank); - /* Enable the BAR from the PCI slave side */ -/* gtPci0EnableInternalBAR(pciBAR); */ -/* gtPci1EnableInternalBAR(pciBAR); */ - return true; - } - return false; -} - - -/******************************************************************************* -* memoryMapDeviceSpace - Set new base address and size for one of the device -* windows. -* -* DESCRIPTION: -* The CPU interface address decoding map consists of 21 address windows -* for the different devices (e.g. CS[3:0] ,PCI0 Mem 0/1/2/3...). Each -* window can have a minimum of 1Mbytes of address space, and up to 4Gbyte -* space. Each address window is defined by two registers - base and size. -* The CPU address is compared with the values in the various CPU windows -* until a match is found and the address is than targeted to that window. -* This function sets new base and size for one the device windows -* (DEV_CS0 - DEV_CS3). It is the programmer`s responsibility to make sure -* that there are no conflicts with other memory spaces. When two memory -* spaces overlap, the MV's behavior is not defined .If a device window -* needs to be closed, set the 'deviceLength' parameter size to 0x0. -* -* INPUT: -* device - One of the device windows (DEV_CS0-DEV_CS3) as -* defined in gtMemory.h. -* deviceBase - The device window base address. -* deviceLength - The device window size. This function will decrement -* the 'deviceLength' parameter by one and then -* check if the size is valid. A valid size must be -* programed from LSB to MSB as sequence of '1's -* followed by sequence of '0's. -* To close a memory window simply set the size to 0. -* -* NOTE!!! -* The size must be in 64Kbyte granularity. -* The base address must be aligned to the size. -* -* OUTPUT: -* None. -* -* RETURN: -* false for invalid size, true otherwise. -* -* CAUTION: PCI_functions must be implemented later To_do !!!!!!!!!!!!!!!!! -* -*******************************************************************************/ - -bool memoryMapDeviceSpace (DEVICE device, unsigned int deviceBase, - unsigned int deviceLength) -{ - unsigned int newBase, newSize, baseReg, sizeReg, temp, rShift; - -/* PCI_INTERNAL_BAR pciBAR;*/ - - switch (device) { - case DEVICE0: - baseReg = CS_0_LOW_DECODE_ADDRESS; /*DEV_CS0_BASE_ADDR; */ - sizeReg = CS_0_HIGH_DECODE_ADDRESS; /*DEV_CS0_SIZE; */ -/* pciBAR = PCI_DEV_CS0_BAR; */ - break; - case DEVICE1: - baseReg = CS_1_LOW_DECODE_ADDRESS; /*DEV_CS1_BASE_ADDR; */ - sizeReg = CS_1_HIGH_DECODE_ADDRESS; /*DEV_CS1_SIZE; */ -/* pciBAR = PCI_DEV_CS1_BAR; */ - break; - case DEVICE2: - baseReg = CS_2_LOW_DECODE_ADDRESS; /*DEV_CS2_BASE_ADDR; */ - sizeReg = CS_2_HIGH_DECODE_ADDRESS; /*DEV_CS2_SIZE; */ -/* pciBAR = PCI_DEV_CS2_BAR; */ - break; - case DEVICE3: - baseReg = CS_3_LOW_DECODE_ADDRESS; /*DEV_CS3_BASE_ADDR; */ - sizeReg = CS_3_HIGH_DECODE_ADDRESS; /*DEV_CS3_SIZE; */ -/* pciBAR = PCI_DEV_CS3_BAR; */ - break; - case BOOT_DEVICE: - baseReg = BOOTCS_LOW_DECODE_ADDRESS; /*BOOTCS_BASE_ADDR; */ - sizeReg = BOOTCS_HIGH_DECODE_ADDRESS; /*BOOTCS_SIZE; */ -/* pciBAR = PCI_BOOT_CS_BAR; */ - break; - default: - return false; - } - if (deviceLength == 0) { - MemoryDisableWindow (DEVCS_0_WINDOW << device); - /* Disable the BAR from the PCI slave side */ -/* gtPci0DisableInternalBAR(pciBAR); */ -/* gtPci1DisableInternalBAR(pciBAR); */ - return true; - } - /* The base address must be aligned to the size */ - if ((deviceBase % deviceLength) != 0) { - return false; - } - if (deviceLength >= MINIMUM_DEVICE_WINDOW_SIZE) { - newBase = deviceBase >> 16; - newSize = deviceLength >> 16; - /* Checking that the size is a sequence of '1' followed by a - sequence of '0' starting from LSB to MSB. */ - temp = newSize - 1; - for (rShift = 0; rShift < 16; rShift++) { - temp = temp >> rShift; - if ((temp & 0x1) == 0) { /* Either we got to the last '1' */ - /* or the size is not valid */ - if (temp > 0x0) - return false; - else - break; - } - } - /* writing the new values */ - GT_REG_WRITE (baseReg, newBase); - GT_REG_WRITE (sizeReg, newSize - 1); - MemoryEnableWindow (DEVCS_0_WINDOW << device); - /* Enable the BAR from the PCI slave side */ -/* gtPci0EnableInternalBAR(pciBAR); */ -/* gtPci1EnableInternalBAR(pciBAR); */ - return true; - } - return false; -} - -/******************************************************************************* -* MemorySetPciWindow - Set new base address and size for one of the PCI -* windows. -* -* DESCRIPTION: -* The CPU interface address decoding map consists of 21 address windows -* for the different devices (e.g. CS[3:0] ,PCI0 Mem 0/1/2/3...). Each -* window can have a minimum of 1Mbytes of address space, and up to 4Gbyte -* space. Each address window is defined by two registers - base and size. -* The CPU address is compared with the values in the various CPU windows -* until a match is found and the address is than targeted to that window. -* This function sets new base and size for one the PCI windows -* (PCI memory0/1/2..). It is the programmer`s responsibility to make sure -* that there are no conflicts with other memory spaces. When two memory -* spaces overlap, the MV's behavior is not defined. If a PCI window -* needs to be closed, set the 'pciWindowSize' parameter size to 0x0. -* -* INPUT: -* pciWindow - One of the PCI windows as defined in gtMemory.h. -* pciWindowBase - The PCI window base address. -* pciWindowSize - The PCI window size. This function will decrement the -* 'pciWindowSize' parameter by one and then check if the -* size is valid. A valid size must be programed from LSB -* to MSB as sequence of '1's followed by sequence of '0's. -* To close a memory window simply set the size to 0. -* -* NOTE!!! -* The size must be in 64Kbyte granularity. -* The base address must be aligned to the size. -* -* OUTPUT: -* None. -* -* RETURN: -* false for invalid size, true otherwise. -* -*******************************************************************************/ -bool memorySetPciWindow (PCI_MEM_WINDOW pciWindow, unsigned int pciWindowBase, - unsigned int pciWindowSize) -{ - unsigned int currentLow, baseAddrReg, sizeReg, temp, rShift; - - switch (pciWindow) { - case PCI_0_IO: - baseAddrReg = PCI_1I_O_LOW_DECODE_ADDRESS; /*PCI_0_IO_BASE_ADDR; */ - sizeReg = PCI_0I_O_HIGH_DECODE_ADDRESS; /*PCI_0_IO_SIZE; */ - break; - case PCI_0_MEM0: - baseAddrReg = PCI_0MEMORY0_LOW_DECODE_ADDRESS; /*PCI_0_MEMORY0_BASE_ADDR; */ - sizeReg = PCI_0MEMORY0_HIGH_DECODE_ADDRESS; /*PCI_0_MEMORY0_SIZE; */ - break; - case PCI_0_MEM1: - baseAddrReg = PCI_0MEMORY1_LOW_DECODE_ADDRESS; /*PCI_0_MEMORY1_BASE_ADDR; */ - sizeReg = PCI_0MEMORY1_HIGH_DECODE_ADDRESS; /*PCI_0_MEMORY1_SIZE; */ - break; - case PCI_0_MEM2: - baseAddrReg = PCI_0MEMORY2_LOW_DECODE_ADDRESS; /*PCI_0_MEMORY2_BASE_ADDR; */ - sizeReg = PCI_0MEMORY2_HIGH_DECODE_ADDRESS; /*PCI_0_MEMORY2_SIZE; */ - break; - case PCI_0_MEM3: - baseAddrReg = PCI_0MEMORY3_LOW_DECODE_ADDRESS; /*PCI_0_MEMORY3_BASE_ADDR; */ - sizeReg = PCI_0MEMORY3_HIGH_DECODE_ADDRESS; /*PCI_0_MEMORY3_SIZE; */ - break; -#ifdef INCLUDE_PCI_1 - case PCI_1_IO: - baseAddrReg = PCI_1I_O_LOW_DECODE_ADDRESS; /*PCI_1_IO_BASE_ADDR; */ - sizeReg = PCI_1I_O_HIGH_DECODE_ADDRESS; /*PCI_1_IO_SIZE; */ - break; - case PCI_1_MEM0: - baseAddrReg = PCI_1MEMORY0_LOW_DECODE_ADDRESS; /*PCI_1_MEMORY0_BASE_ADDR; */ - sizeReg = PCI_1MEMORY0_HIGH_DECODE_ADDRESS; /*PCI_1_MEMORY0_SIZE; */ - break; - case PCI_1_MEM1: - baseAddrReg = PCI_1MEMORY1_LOW_DECODE_ADDRESS; /*PCI_1_MEMORY1_BASE_ADDR; */ - sizeReg = PCI_1MEMORY1_HIGH_DECODE_ADDRESS; /*PCI_1_MEMORY1_SIZE; */ - break; - case PCI_1_MEM2: - baseAddrReg = PCI_1MEMORY2_LOW_DECODE_ADDRESS; /*PCI_1_MEMORY2_BASE_ADDR; */ - sizeReg = PCI_1MEMORY2_HIGH_DECODE_ADDRESS; /*PCI_1_MEMORY2_SIZE; */ - break; - case PCI_1_MEM3: - baseAddrReg = PCI_1MEMORY3_LOW_DECODE_ADDRESS; /*PCI_1_MEMORY3_BASE_ADDR; */ - sizeReg = PCI_1MEMORY3_HIGH_DECODE_ADDRESS; /*PCI_1_MEMORY3_SIZE; */ - break; -#endif /* INCLUDE_PCI_1 */ - default: - return false; - } - if (pciWindowSize == 0) { - MemoryDisableWindow (PCI_0_IO_WINDOW << pciWindow); - return true; - } - /* The base address must be aligned to the size */ - if ((pciWindowBase % pciWindowSize) != 0) { - return false; - } - if (pciWindowSize >= MINIMUM_PCI_WINDOW_SIZE) { - pciWindowBase >>= 16; - pciWindowSize >>= 16; - /* Checking that the size is a sequence of '1' followed by a - sequence of '0' starting from LSB to MSB. */ - temp = pciWindowSize - 1; - for (rShift = 0; rShift < 16; rShift++) { - temp = temp >> rShift; - if ((temp & 0x1) == 0) { /* Either we got to the last '1' */ - /* or the size is not valid */ - if (temp > 0x0) - return false; - else - break; - } - } - GT_REG_WRITE (sizeReg, pciWindowSize - 1); - GT_REG_READ (baseAddrReg, ¤tLow); - pciWindowBase = - (pciWindowBase & 0xfffff) | (currentLow & 0xfff00000); - GT_REG_WRITE (baseAddrReg, pciWindowBase); - MemoryEnableWindow (PCI_0_IO_WINDOW << pciWindow); - return true; - } - return false; -} - -/******************************************************************************* -* memoryMapInternalRegistersSpace - Sets new base address for the internal -* registers memory space. -* -* DESCRIPTION: -* This function set new base address for the internal registers memory -* space (the size is fixed and cannot be modified). The function does not -* handle overlapping with other memory spaces, it is the programer's -* responsibility to ensure that overlapping does not occur. -* When two memory spaces overlap, the MV's behavior is not defined. -* -* INPUT: -* internalRegBase - new base address for the internal registers memory -* space. -* -* OUTPUT: -* None. -* -* RETURN: -* true on success, false on failure -* -*******************************************************************************/ -/******************************************************************** -* 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 >> 16); - GT_REG_READ (INTERNAL_SPACE_DECODE, ¤tValue); - internalRegBase = (currentValue & 0xff000000) | internalRegBase; - GT_REG_WRITE (INTERNAL_SPACE_DECODE, internalRegBase); - /* initializing also the global variable 'internalRegBaseAddr' */ -/* gtInternalRegBaseAddr = internalValue; */ - INTERNAL_REG_BASE_ADDR = internalValue; - return true; -} - -/******************************************************************************* -* memoryGetInternalRegistersSpace - Returns the internal registers Base -* address. -* -* DESCRIPTION: -* This function returns the base address of the internal registers -* memory space . -* -* INPUT: -* None. -* -* OUTPUT: -* None. -* -* RETURN: -* 32 bit base address of the internal registers memory space. -* -*******************************************************************************/ -unsigned int memoryGetInternalRegistersSpace (void) -{ - unsigned int currentValue = 0; - - GT_REG_READ (INTERNAL_SPACE_DECODE, ¤tValue); - return ((currentValue & 0x000fffff) << 16); -} - -/******************************************************************************* -* gtMemoryGetInternalSramBaseAddr - Returns the integrated SRAM base address. -* -* DESCRIPTION: -* The Atlantis incorporate integrated 2Mbit SRAM for general use. This -* funcnion return the SRAM's base address. -* INPUT: -* None. -* OUTPUT: -* None. -* RETURN: -* 32 bit SRAM's base address. -* -*******************************************************************************/ -unsigned int memoryGetInternalSramBaseAddr (void) -{ - return ((GTREGREAD (INTEGRATED_SRAM_BASE_ADDR) & 0xfffff) << 16); -} - -/******************************************************************************* -* gtMemorySetInternalSramBaseAddr - Set the integrated SRAM base address. -* -* DESCRIPTION: -* The Atlantis incorporate integrated 2Mbit SRAM for general use. This -* function sets a new base address to the SRAM . -* INPUT: -* sramBaseAddress - The SRAM's base address. -* OUTPUT: -* None. -* RETURN: -* None. -* -*******************************************************************************/ -void gtMemorySetInternalSramBaseAddr (unsigned int sramBaseAddress) -{ - GT_REG_WRITE (INTEGRATED_SRAM_BASE_ADDR, sramBaseAddress >> 16); -} - -/******************************************************************************* -* memorySetProtectRegion - Set protection mode for one of the 8 regions. -* -* DESCRIPTION: -* The CPU interface supports configurable access protection. This includes -* up to eight address ranges defined to a different protection type : -* whether the address range is cacheable or not, whether it is writable or -* not , and whether it is accessible or not. A Low and High registers -* define each window while the minimum address range of each window is -* 1Mbyte. An address driven by the CPU, in addition to the address -* decoding and remapping process, is compared against the eight Access -* Protection Low/High registers , if an address matches one of the windows -* , the MV device checks the transaction type against the protection bits -* defined in CPU Access Protection register, to determine if the access is -* allowed. This function set a protection mode to one of the 8 possible -* regions. -* NOTE: -* The CPU address windows are restricted to a size of 2 power n and the -* start address must be aligned to the window size. For example, if using -* a 16 MB window, the start address bits [23:0] must be 0.The MV's -* internal registers space is not protected, even if the access protection -* windows contain this space. -* -* INPUT: -* region - selects which region to be configured. The values defined in -* gtMemory.h: -* -* - MEM_REGION0 -* - MEM_REGION1 -* - etc. -* -* memAccess - Allows or forbids access (read or write ) to the region. The -* values defined in gtMemory.h: -* -* - MEM_ACCESS_ALLOWED -* - MEM_ACCESS_FORBIDEN -* -* memWrite - CPU write protection to the region. The values defined in -* gtMemory.h: -* -* - MEM_WRITE_ALLOWED -* - MEM_WRITE_FORBIDEN -* -* cacheProtection - Defines whether caching the region is allowed or not. -* The values defined in gtMemory.h: -* -* - MEM_CACHE_ALLOWED -* - MEM_CACHE_FORBIDEN -* -* baseAddress - the region's base Address. -* regionSize - The region's size. This function will decrement the -* 'regionSize' parameter by one and then check if the size -* is valid. A valid size must be programed from LSB to MSB -* as sequence of '1's followed by sequence of '0's. -* To close a memory window simply set the size to 0. -* -* NOTE!!! -* The size must be in 64Kbyte granularity. -* The base address must be aligned to the size. -* -* OUTPUT: -* None. -* -* RETURN: -* false for invalid size, true otherwise. -* -*******************************************************************************/ -bool memorySetProtectRegion (MEMORY_PROTECT_WINDOW window, - MEMORY_ACCESS memAccess, - MEMORY_ACCESS_WRITE memWrite, - MEMORY_CACHE_PROTECT cacheProtection, - unsigned int baseAddress, unsigned int size) -{ - unsigned int dataForReg, temp, rShift; - - if (size == 0) { - GT_REG_WRITE ((CPU_PROTECT_WINDOW_0_SIZE + 0x10 * window), - 0x0); - return true; - } - /* The base address must be aligned to the size. */ - if (baseAddress % size != 0) { - return false; - } - if (size >= MINIMUM_ACCESS_WIN_SIZE) { - baseAddress = ((baseAddress >> 16) & 0xfffff); - dataForReg = baseAddress | ((memAccess << 20) & BIT20) | - ((memWrite << 21) & BIT21) | ((cacheProtection << 22) - & BIT22) | BIT31; - GT_REG_WRITE (CPU_PROTECT_WINDOW_0_BASE_ADDR + 0x10 * window, - dataForReg); - size >>= 16; - /* Checking that the size is a sequence of '1' followed by a - sequence of '0' starting from LSB to MSB. */ - temp = size - 1; - for (rShift = 0; rShift < 16; rShift++) { - temp = temp >> rShift; - if ((temp & 0x1) == 0) { /* Either we got to the last '1' */ - /* or the size is not valid */ - if (temp > 0x0) - return false; - else - break; - } - } - GT_REG_WRITE ((CPU_PROTECT_WINDOW_0_SIZE + 0x10 * window), - size - 1); - return true; - } - return false; -} - -/******************************************************************************* -* gtMemoryDisableProtectRegion - Disable a protected window. -* -* DESCRIPTION: -* This function disable a protected window set by -* 'gtMemorySetProtectRegion' function. -* -* INPUT: -* window - one of the 4 windows ( defined in gtMemory.h ). -* -* OUTPUT: -* None. -* -* RETURN: -* None. -* -*******************************************************************************/ -void memoryDisableProtectRegion (MEMORY_PROTECT_WINDOW window) -{ - RESET_REG_BITS (((CPU_PROTECT_WINDOW_0_BASE_ADDR) + (0x10 * window)), - BIT31); -} - -/******************************************************************************* -* memorySetPciRemapValue - Set a remap value to a PCI memory space target. -* -* DESCRIPTION: -* In addition to the address decoding mechanism, the CPU has an address -* remapping mechanism to be used by every PCI decoding window. Each PCI -* window can be remaped to a desired address target according to the remap -* value within the remap register. The address remapping is useful when a -* CPU address range must be reallocated to a different location on the -* PCI bus. Also, it enables CPU access to a PCI agent located above the -* 4Gbyte space. On system boot, each of the PCI memory spaces is maped to -* a defualt value (see CPU interface section in the MV spec for the -* default values). The remap mechanism does not always produce the desired -* address on the PCI bus because of the remap mechanism way of working -* (to fully understand why, please see the 'Address Remapping' section in -* the MV's spec). Therefor, this function sets a desired remap value to -* one of the PCI memory windows and return the effective address that -* should be used when exiting the PCI memory window. You should ALWAYS use -* the returned value by this function when remapping a PCI window and -* exiting it. If for example the base address of PCI0 memory 0 is -* 0x90000000, the size is 0x03ffffff and the remap value is 0x11000000, -* the function will return the value of 0x91000000 that MUST -* be used to exit this memory window in order to achive the deisred -* remapping. -* -* INPUT: -* memoryWindow - One of the PCI memory windows as defined in Memory.h -* remapValueLow - The low remap value. -* remapValueHigh - The high remap value. -* OUTPUT: -* None. -* -* RETURN: -* The effective base address to exit the PCI, or 0xffffffff if one of the -* parameters is erroneous or the effective base address is higher the top -* decode value. -* -*******************************************************************************/ -unsigned int memorySetPciRemapValue (PCI_MEM_WINDOW memoryWindow, - unsigned int remapValueHigh, - unsigned int remapValueLow) -{ - unsigned int pciMemWindowBaseAddrReg = 0, baseAddrValue = 0; - unsigned int pciMemWindowSizeReg = 0, windowSizeValue = 0; - unsigned int effectiveBaseAddress, remapRegLow, remapRegHigh; - - /* Initializing the base and size variables of the PCI - memory windows */ - switch (memoryWindow) { - case PCI_0_IO: - pciMemWindowBaseAddrReg = PCI_0_IO_BASE_ADDR; - pciMemWindowSizeReg = PCI_0_IO_SIZE; - remapRegLow = PCI_0_IO_ADDR_REMAP; - remapRegHigh = PCI_0_IO_ADDR_REMAP; - break; - case PCI_0_MEM0: - pciMemWindowBaseAddrReg = PCI_0_MEMORY0_BASE_ADDR; - pciMemWindowSizeReg = PCI_0_MEMORY0_SIZE; - remapRegLow = PCI_0_MEMORY0_LOW_ADDR_REMAP; - remapRegHigh = PCI_0_MEMORY0_HIGH_ADDR_REMAP; - break; - case PCI_0_MEM1: - pciMemWindowBaseAddrReg = PCI_0_MEMORY1_BASE_ADDR; - pciMemWindowSizeReg = PCI_0_MEMORY1_SIZE; - remapRegLow = PCI_0_MEMORY1_LOW_ADDR_REMAP; - remapRegHigh = PCI_0_MEMORY1_HIGH_ADDR_REMAP; - break; - case PCI_0_MEM2: - pciMemWindowBaseAddrReg = PCI_0_MEMORY2_BASE_ADDR; - pciMemWindowSizeReg = PCI_0_MEMORY2_SIZE; - remapRegLow = PCI_0_MEMORY2_LOW_ADDR_REMAP; - remapRegHigh = PCI_0_MEMORY2_HIGH_ADDR_REMAP; - break; - case PCI_0_MEM3: - pciMemWindowBaseAddrReg = PCI_0_MEMORY3_BASE_ADDR; - pciMemWindowSizeReg = PCI_0_MEMORY3_SIZE; - remapRegLow = PCI_0_MEMORY3_LOW_ADDR_REMAP; - remapRegHigh = PCI_0_MEMORY3_HIGH_ADDR_REMAP; - break; -#ifdef INCLUDE_PCI_1 - case PCI_1_IO: - pciMemWindowBaseAddrReg = PCI_1_IO_BASE_ADDR; - pciMemWindowSizeReg = PCI_1_IO_SIZE; - remapRegLow = PCI_1_IO_ADDR_REMAP; - remapRegHigh = PCI_1_IO_ADDR_REMAP; - break; - case PCI_1_MEM0: - pciMemWindowBaseAddrReg = PCI_1_MEMORY0_BASE_ADDR; - pciMemWindowSizeReg = PCI_1_MEMORY0_SIZE; - remapRegLow = PCI_1_MEMORY0_LOW_ADDR_REMAP; - remapRegHigh = PCI_1_MEMORY0_HIGH_ADDR_REMAP; - break; - case PCI_1_MEM1: - pciMemWindowBaseAddrReg = PCI_1_MEMORY1_BASE_ADDR; - pciMemWindowSizeReg = PCI_1_MEMORY1_SIZE; - remapRegLow = PCI_1_MEMORY1_LOW_ADDR_REMAP; - remapRegHigh = PCI_1_MEMORY1_HIGH_ADDR_REMAP; - break; - case PCI_1_MEM2: - pciMemWindowBaseAddrReg = PCI_1_MEMORY1_BASE_ADDR; - pciMemWindowSizeReg = PCI_1_MEMORY1_SIZE; - remapRegLow = PCI_1_MEMORY1_LOW_ADDR_REMAP; - remapRegHigh = PCI_1_MEMORY1_HIGH_ADDR_REMAP; - break; - case PCI_1_MEM3: - pciMemWindowBaseAddrReg = PCI_1_MEMORY3_BASE_ADDR; - pciMemWindowSizeReg = PCI_1_MEMORY3_SIZE; - remapRegLow = PCI_1_MEMORY3_LOW_ADDR_REMAP; - remapRegHigh = PCI_1_MEMORY3_HIGH_ADDR_REMAP; - break; -#endif /* INCLUDE_PCI_1 */ - default: - /* Retrun an invalid effective base address */ - return 0xffffffff; - } - /* Writing the remap value to the remap regisers */ - GT_REG_WRITE (remapRegHigh, remapValueHigh); - GT_REG_WRITE (remapRegLow, remapValueLow >> 16); - /* Reading the values from the base address and size registers */ - baseAddrValue = GTREGREAD (pciMemWindowBaseAddrReg) & 0xfffff; - windowSizeValue = GTREGREAD (pciMemWindowSizeReg) & 0xffff; - /* Start calculating the effective Base Address */ - effectiveBaseAddress = baseAddrValue << 16; - /* The effective base address will be combined from the chopped (if any) - remap value (according to the size value and remap mechanism) and the - window's base address */ - effectiveBaseAddress |= - (((windowSizeValue << 16) | 0xffff) & remapValueLow); - /* If the effectiveBaseAddress exceed the window boundaries return an - invalid value. */ - if (effectiveBaseAddress > - ((baseAddrValue << 16) + ((windowSizeValue << 16) | 0xffff))) - return 0xffffffff; - return effectiveBaseAddress; -} - -/******************************************************************** -* 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 -*********************************************************************/ -/* evb6260 code */ -#if 0 -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; -} -#endif - -/******************************************************************** -* memoryRemapAddress - This fubction used for address remapping. -* -* -* Inputs: regOffset: remap register -* remapValue : -* Returns: false if one of the parameters is erroneous,true otherwise. -* -* Not needed function To_do !!!! -*********************************************************************/ -bool memoryRemapAddress (unsigned int remapReg, unsigned int remapValue) -{ - unsigned int valueForReg; - - valueForReg = (remapValue & 0xfff00000) >> 20; - GT_REG_WRITE (remapReg, valueForReg); - return true; -} - -/******************************************************************************* -* memoryGetDeviceParam - Extract the device parameters from the device bank -* parameters register. -* -* DESCRIPTION: -* To allow interfacing with very slow devices and fast synchronous SRAMs, -* each device can be programed to different timing parameters. Each bank -* has its own parameters register. Bank width can be programmed to 8, 16, -* or 32-bits. Bank timing parameters can be programmed to support -* different device types (e.g. Sync Burst SRAM, Flash , ROM, I/O -* Controllers). The MV allows you to set timing parameters and width for -* each device through parameters register . -* This function extracts the parameters described from the Device Bank -* parameters register and fills the given 'deviceParam' (defined in -* gtMemory.h) structure with the read data. -* -* INPUT: -* deviceParam - pointer to a structure DEVICE_PARAM (defined in -* Memory.h).For details about each structure field please -* see the device timing parameter section in the MV -* datasheet. -* deviceNum - Select on of the five device banks (defined in -* Memory.h) : -* -* - DEVICE0 -* - DEVICE1 -* - DEVICE2 -* - etc. -* -* OUTPUT: -* None. -* -* RETURN: -* false if one of the parameters is erroneous,true otherwise. -* -*******************************************************************************/ -/******************************************************************** -* 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; - - if (deviceNum > 4) - return false; - GT_REG_READ (DEVICE_BANK0PARAMETERS + 4 * deviceNum, &valueOfReg); - calcData = (0x7 & valueOfReg) + ((BIT22 & valueOfReg) >> 19); - deviceParam->turnOff = calcData; /* Turn Off */ - - calcData = ((0x78 & valueOfReg) >> 3) + ((BIT23 & valueOfReg) >> 19); - deviceParam->acc2First = calcData; /* Access To First */ - - calcData = ((0x780 & valueOfReg) >> 7) + ((BIT24 & valueOfReg) >> 20); - deviceParam->acc2Next = calcData; /* Access To Next */ - - calcData = - ((0x3800 & valueOfReg) >> 11) + ((BIT25 & valueOfReg) >> 22); - deviceParam->ale2Wr = calcData; /* Ale To Write */ - - calcData = ((0x1c000 & valueOfReg) >> 14) + - ((BIT26 & valueOfReg) >> 23); - deviceParam->wrLow = calcData; /* Write Active */ - - calcData = ((0xe0000 & valueOfReg) >> 17) + - ((BIT27 & valueOfReg) >> 24); - deviceParam->wrHigh = calcData; /* Write High */ - - calcData = ((0x300000 & valueOfReg) >> 20); - deviceParam->deviceWidth = (BIT0 << calcData); /* In bytes */ - calcData = ((0x30000000 & valueOfReg) >> 28); - deviceParam->badrSkew = calcData; /* Cycles gap between BAdr - toggle to read data sample. */ - calcData = ((0x40000000 & valueOfReg) >> 30); - deviceParam->DPEn = calcData; /* Data Parity enable */ - return true; -} - -/******************************************************************************* -* memorySetDeviceParam - Set new parameters for a device. -* -* -* DESCRIPTION: -* To allow interfacing with very slow devices and fast synchronous SRAMs, -* each device can be programed to different timing parameters. Each bank -* has its own parameters register. Bank width can be programmed to 8, 16, -* or 32-bits. Bank timing parameters can be programmed to support -* different device types (e.g. Sync Burst SRAM, Flash , ROM, I/O -* Controllers). The MV allows you to set timing parameters and width for -* each device through parameters register. This function set new -* parameters to a device Bank from the delivered structure 'deviceParam' -* (defined in gtMemory.h). The structure must be initialized with data -* prior to the use of these function. -* -* INPUT: -* deviceParam - pointer to a structure DEVICE_PARAM (defined in -* Memory.h).For details about each structure field please -* see the device timing parameter section in the MV -* datasheet. -* deviceNum - Select on of the five device banks (defined in -* Memory.h) : -* -* - DEVICE0 -* - DEVICE1 -* - DEVICE2 -* - etc. -* -* OUTPUT: -* None. -* -* RETURN: -* false if one of the parameters is erroneous,true otherwise. -* -*******************************************************************************/ -/******************************************************************** -* 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 > 0x7) || (deviceParam->acc2First > 0xf) || - (deviceParam->acc2Next > 0xf) || (deviceParam->ale2Wr > 0x7) || - (deviceParam->wrLow > 0x7) || (deviceParam->wrHigh > 0x7) || - (deviceParam->badrSkew > 0x2) || (deviceParam->DPEn > 0x1)) { - 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) | - (((deviceParam->badrSkew) & 0x3) << 28) | - (((deviceParam->DPEn) & 0x1) << 30)); - - /* 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; - default: - valueForReg = valueForReg | _8BIT; - break; - } - GT_REG_WRITE (DEVICE_BANK0PARAMETERS + 4 * deviceNum, valueForReg); - return true; -} - -/******************************************************************************* -* MemoryDisableWindow - Disable a memory space by the disable bit. -* DESCRIPTION: -* This function disables one of the 21 availiable windows dedicated for -* the CPU decoding mechanism. Its possible to combine several windows with -* the OR command. -* INPUT: -* window - One or more of the memory windows (defined in gtMemory.h). -* OUTPUT: -* None. -* RETURN: -* None. -*******************************************************************************/ -void MemoryDisableWindow (MEMORY_WINDOW window) -{ - SET_REG_BITS (BASE_ADDR_ENABLE, window); -} - -/******************************************************************************* -* MemoryEnableWindow - Enable a memory space that was disabled by -* 'MemoryDisableWindow'. -* DESCRIPTION: -* This function enables one of the 21 availiable windows dedicated for the -* CPU decoding mechanism. Its possible to combine several windows with the -* OR command. -* INPUT: -* window - One or more of the memory windows (defined in gtMemory.h). -* OUTPUT: -* None. -* RETURN: -* None. -*******************************************************************************/ -void MemoryEnableWindow (MEMORY_WINDOW window) -{ - RESET_REG_BITS (BASE_ADDR_ENABLE, window); -} - -/******************************************************************************* -* MemoryGetMemWindowStatus - This function check whether the memory window is -* disabled or not. -* DESCRIPTION: -* This function checks if the given memory window is closed . -* INPUT: -* window - One or more of the memory windows (defined in gtMemory.h). -* OUTPUT: -* None. -* RETURN: -* true for a closed window, false otherwise . -*******************************************************************************/ -MEMORY_WINDOW_STATUS MemoryGetMemWindowStatus (MEMORY_WINDOW window) -{ - if (GTREGREAD (BASE_ADDR_ENABLE) & window) - return MEM_WINDOW_DISABLED; - return MEM_WINDOW_ENABLED; -} |
