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embeddedsw/lib/sw_services/xilflash/src/xilflash_cfi.c
Jagannadha Sutradharudu Teki 2c8f92039d embeddesw: Add initial code support 
Added initial support Xilinx Embedded Software.

Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
2014-06-24 16:45:01 +05:30

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/******************************************************************************
*
* Copyright (C) 2007 - 2014 Xilinx, Inc. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* Use of the Software is limited solely to applications:
* (a) running on a Xilinx device, or
* (b) that interact with a Xilinx device through a bus or interconnect.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* XILINX CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of the Xilinx shall not be used
* in advertising or otherwise to promote the sale, use or other dealings in
* this Software without prior written authorization from Xilinx.
*
******************************************************************************/
/*****************************************************************************/
/**
*
* @file xilflash_cfi.c
*
* The file implements the functions for retrieval and translation of CFI data
* from a compliant flash device. CFI contains data that defines part geometry,
* write/erase timing, and programming data.
*
* Data is retrieved using macros defined in this xflash_cfi.h file. The
* macros simplify data extraction because they have been written to take into
* account the layout of parts on the data bus. To the library, CFI data appears
* as if it were always being read from a single 8-bit part (XFL_LAYOUT_X8_X8_X1)
* Otherwise, the retrieval code would have to contend with all the formats
* illustrated below. The illustration shows how the first three bytes of the CFI
* query data "QRY" appear in flash memory space for various part layouts.
* <pre>
*
* Byte Offset (Big-Endian)
* 0123456789ABCDEF
* ----------------
* XFL_LAYOUT_X16_X16_X1 Q R Y
* XFL_LAYOUT_X16_X16_X2 Q Q R R Y Y
* </pre>
*
* Where the holes between Q, R, and Y are NULL (all bits 0)
*
* @note
*
* This code is intended to be RTOS and processor independent.
* It works with physical addresses only. Any needs for dynamic memory
* management, threads, mutual exclusion, virtual memory, or cache control
* management must be satisfied by the layer above this library.
*
* <pre>
* MODIFICATION HISTORY:
*
* Ver Who Date Changes
* ----- ---- -------- -----------------------------------------------
* 1.00a rmm 10/25/07 First release
* 1.00a mta 10/25/07 Updated to flash library
* 1.01a ksu 04/10/08 Added support for AMD CFI Interface
* 1.02a ksu 08/06/09 Added code to read the platform flash bank information
* 2.00a ktn 12/04/09 Updated to use the HAL processor APIs/macros
* 2.02a sdm 06/30/10 Updated to support AXI EMC with Little Endian Processor
* 3.00a sdm 03/03/11 Removed static parameters in mld and updated code to
* determine these parameters from the CFI data.
* 3.01a srt 03/02/12 Added support for Micron G18 Flash device to fix
* CRs 648372, 648282.
* Added DATA_SYNC to fix the CR 644750.
* 3.02a srt 05/30/12 Changed Implementation for Micron G18 Flash, which
* fixes the CR 662317.
* CR 662317 Description - Xilinx Platform Flash on ML605
* fails to work.
* 3.04a srt 02/18/13 Fixed CR 700553.
* </pre>
*
*
****************************************************************************/
/***************************** Include Files *********************************/
#include "xil_types.h"
#include "include/xilflash.h"
#include "include/xilflash_cfi.h"
#include "xil_io.h"
/************************** Constant Definitions *****************************/
/**************************** Type Definitions *******************************/
/***************** Macros (Inline Functions) Definitions *********************/
/************************** Function Prototypes ******************************/
/************************** Variable Definitions *****************************/
/************************** Function Definitions *****************************/
/*****************************************************************************/
/**
*
* Retrieves the standard CFI data from the part(s), interpret the data, and
* update the provided geometry and properties structures.
*
* Extended CFI data is part specific and ignored here. This data must be read
* by the specific flash device family library.
*
* @param InstancePtr is the pointer to the XFlash instance.
* @param BusWidth is the total width of the flash memory, in bytes.
*
* @return
* - XST_SUCCESS if successful.
* - XFLASH_CFI_QUERY_ERROR if an error occurred interpreting
* the data.
* - XFLASH_PART_NOT_SUPPORTED if invalid Layout parameter.
*
* @note None.
*
******************************************************************************/
int XFlashCFI_ReadCommon(XFlash *InstancePtr, u8 BusWidth)
{
void *DataPtr;
u32 BaseAddress;
int Status = XST_SUCCESS;
u8 Data8;
u8 Mode;
u8 DataQRY[3];
u16 Data16;
u16 ExtendedQueryTblOffset;
u32 SizeMultiplier;
u32 CurrentAbsoluteOffset;
u16 CurrentAbsoluteBlock;
u32 Index;
u32 Interleave;
u32 CfiQryAddr;
u32 Layout;
u32 Data32;
Xuint64 Data64;
u16 NumBanks, Bank;
u16 NumEraseRegions;
u8 TypesEraseBlock;
u16 NumBlockInBank;
u32 SizeBlockInBank;
XFlashGeometry *GeomPtr;
if(InstancePtr == NULL) {
return XST_FAILURE;
}
BaseAddress = InstancePtr->Geometry.BaseAddress;
CfiQryAddr = 0x10;
switch (BusWidth) {
case 1:
/* Check for one 16 bit flash in x8 mode */
WRITE_FLASH_8(BaseAddress, 0xFF);
WRITE_FLASH_8(BaseAddress + 0xAA, 0x98);
DATA_SYNC;
Data8 = READ_FLASH_8(BaseAddress + (CfiQryAddr << 1));
if (Data8 == 0x51) {
Layout = XFL_LAYOUT_X16_X8_X1;
} else {
Layout = XFLASH_PART_NOT_SUPPORTED;
}
break;
case 2:
/* Check for one 16 bit flash in x16 mode */
CfiQryAddr <<= 1;
WRITE_FLASH_16(BaseAddress, 0xFF);
WRITE_FLASH_16(BaseAddress + 0xAA, 0x98);
DATA_SYNC;
Data16 = READ_FLASH_16(BaseAddress + CfiQryAddr);
if (Data16 == 0x51) {
Layout = XFL_LAYOUT_X16_X16_X1;
} else {
Layout = XFLASH_PART_NOT_SUPPORTED;
}
break;
case 4:
/* Check for two 16 bit flash devices in x32 mode */
CfiQryAddr <<= 2;
WRITE_FLASH_32(BaseAddress, 0x00FF00FF);
WRITE_FLASH_32(BaseAddress + 0xAA, 0x00980098);
DATA_SYNC;
Data32 = READ_FLASH_32(BaseAddress + CfiQryAddr);
if (Data32 == 0x00510051) {
Layout = XFL_LAYOUT_X16_X16_X2;
} else {
Layout = XFLASH_PART_NOT_SUPPORTED;
}
break;
case 8:
/* Check for four 16 bit flash devices in x64 mode */
CfiQryAddr <<= 3;
WRITE_FLASH_64x2(BaseAddress + 0xAA,
0x00FF00FF, 0x00FF00FF);
WRITE_FLASH_64x2(BaseAddress + 0xAA,
0x00980098, 0x00980098);
DATA_SYNC;
READ_FLASH_64(BaseAddress + CfiQryAddr, Data64);
if ((XUINT64_MSW(Data64) == 0x00510051) &&
(XUINT64_LSW(Data64) == 0x00510051)) {
Layout = XFL_LAYOUT_X16_X16_X4;
} else {
Layout = XFLASH_PART_NOT_SUPPORTED;
}
break;
default:
Layout = XFLASH_PART_NOT_SUPPORTED;
}
if (Layout == XFLASH_PART_NOT_SUPPORTED) {
return (XFLASH_PART_NOT_SUPPORTED);
}
InstancePtr->Geometry.MemoryLayout = Layout;
/*
* To stay consistent when retrieving the CFI data for all part layouts
* we use the XFL_CFI_READ macros supplying the correct interleave based
* on the layout.
*
* The size of a block for an instance is the block size reported
* by the device multiplied by the number of devices (SizeMultiplier).
*/
Interleave = (InstancePtr->Geometry.MemoryLayout &
XFL_LAYOUT_CFI_INTERL_MASK) >> 24;
SizeMultiplier = (InstancePtr->Geometry.MemoryLayout &
XFL_LAYOUT_NUM_PARTS_MASK);
Mode = (InstancePtr->Geometry.MemoryLayout &
XFL_LAYOUT_PART_MODE_MASK) >> 8;
/*
* Begin reading the data. Each datum is documented in comments with
* its offset range.
*/
/*
* 10h-12h : Contains the "QRY" string. Must be present.
*/
XFL_CFI_POSITION_PTR(DataPtr, BaseAddress, Interleave, 0x10);
DataQRY[0] = XFlashCFI_Read8((u8*)DataPtr, Interleave, Mode);
XFL_CFI_ADVANCE_PTR8(DataPtr, Interleave);
DataQRY[1] = XFlashCFI_Read8((u8*)DataPtr, Interleave, Mode);
XFL_CFI_ADVANCE_PTR8(DataPtr, Interleave);
DataQRY[2] = XFlashCFI_Read8((u8*)DataPtr, Interleave, Mode);
if ((DataQRY[0] != 'Q') || (DataQRY[1] != 'R') || (DataQRY[2] != 'Y')) {
Status = XFLASH_CFI_QUERY_ERROR;
}
else {
/*
* 13h-14h : Primary vender command set.
*/
XFL_CFI_POSITION_PTR(DataPtr, BaseAddress, Interleave, 0x13);
InstancePtr->Properties.PartID.CommandSet =
XFlashCFI_Read16((u8*)DataPtr, Interleave, Mode);
InstancePtr->CommandSet =
InstancePtr->Properties.PartID.CommandSet;
#ifdef XPAR_XFL_DEVICE_FAMILY_INTEL
/* Support for Micron G18. This flash is partially compatible
with Intel CFI command set and it has a different geometry
from the other Intel Flash Devices */
if (InstancePtr->CommandSet == XFL_CMDSET_INTEL_G18) {
InstancePtr->Command.WriteBufferCommand =
XFL_INTEL_G18_CMD_WRITE_BUFFER;
InstancePtr->Command.ProgramCommand =
XFL_INTEL_G18_CMD_PROGRAM;
}
else {
InstancePtr->Command.WriteBufferCommand =
XFL_INTEL_CMD_WRITE_BUFFER;
InstancePtr->Command.ProgramCommand =
XFL_INTEL_CMD_PROGRAM;
}
#endif
/*
* 15h-16h : Address for Primary Algorithm extended Query table.
*/
XFL_CFI_ADVANCE_PTR16(DataPtr, Interleave);
ExtendedQueryTblOffset =
XFlashCFI_Read16((u8*)DataPtr, Interleave, Mode);
/*
* 17h-1Ah : Vendor data to be interpreted by part (ignored
* here).
* 1Bh-1Eh : Voltage requirements (ignored by this library).
*
* Interpret the timing requirements starting here.
* 1Fh : Typical timeout for single byte/word program cycle
* (2^N Us).
*/
XFL_CFI_POSITION_PTR(DataPtr, BaseAddress, Interleave, 0x1F);
Data8 = XFlashCFI_Read8((u8*)DataPtr, Interleave, Mode);
if (Data8 != 0) {
InstancePtr->Properties.TimeTypical.WriteSingle_Us =
1 << Data8;
}
XFL_CFI_ADVANCE_PTR8(DataPtr, Interleave);
/*
* 20h:Typical timeout for max buffer program cycle (2^N Us)
* = 0 if not supported.
*/
Data8 = XFlashCFI_Read8((u8*)DataPtr, Interleave, Mode);
if (Data8 != 0) {
InstancePtr->Properties.TimeTypical.WriteBuffer_Us =
1 << Data8;
}
XFL_CFI_ADVANCE_PTR8(DataPtr, Interleave);
/*
* 21h : Typical timeout for single block erase (2^N Ms).
*/
Data8 = XFlashCFI_Read8((u8*)DataPtr, Interleave, Mode);
if (Data8 != 0) {
InstancePtr->Properties.TimeTypical.EraseBlock_Ms =
1 << Data8;
}
XFL_CFI_ADVANCE_PTR8(DataPtr, Interleave);
/*
* 22h : Typical timeout for full chip erase (2^N Ms)
* = 0 if not supported.
*/
Data8 = XFlashCFI_Read8((u8*)DataPtr, Interleave, Mode);
if (Data8 != 0) {
InstancePtr->Properties.TimeTypical.EraseChip_Ms =
1 << Data8;
}
XFL_CFI_ADVANCE_PTR8(DataPtr, Interleave);
/*
* 23h : Maximum timeout for single byte/word program cycle
* (2^N * typical time).
*/
Data8 = XFlashCFI_Read8((u8*)DataPtr, Interleave, Mode);
InstancePtr->Properties.TimeMax.WriteSingle_Us =
InstancePtr->Properties.TimeTypical.WriteSingle_Us *
(1 << Data8);
XFL_CFI_ADVANCE_PTR8(DataPtr, Interleave);
/*
* 24h : Maximum timeout for max buffer program cycle
* (2^N * typical time)
* = 0 if not supported.
*/
Data8 = XFlashCFI_Read8((u8*)DataPtr, Interleave, Mode);
InstancePtr->Properties.TimeMax.WriteBuffer_Us =
InstancePtr->Properties.TimeTypical.WriteBuffer_Us *
(1 << Data8);
XFL_CFI_ADVANCE_PTR8(DataPtr, Interleave);
/*
* 25h : Maximum timeout for single block erase
* (2^N * typical time).
*/
Data8 = XFlashCFI_Read8((u8*)DataPtr, Interleave, Mode);
InstancePtr->Properties.TimeMax.EraseBlock_Ms =
InstancePtr->Properties.TimeTypical.EraseBlock_Ms *
(1 << Data8);
XFL_CFI_ADVANCE_PTR8(DataPtr, Interleave);
/*
* 26h : Maximum timeout for full chip erase
* (2^N * typical time)
* = 0 if not supported.
*/
Data8 = XFlashCFI_Read8((u8*)DataPtr, Interleave, Mode);
InstancePtr->Properties.TimeMax.EraseChip_Ms =
InstancePtr->Properties.TimeTypical.EraseChip_Ms *
(1 << Data8);
XFL_CFI_ADVANCE_PTR8(DataPtr, Interleave);
/*
* 27h : Device size in bytes
* = 2^N bytes * (Number of parts).
*/
Data8 = XFlashCFI_Read8((u8*)DataPtr, Interleave, Mode);
InstancePtr->Geometry.DeviceSize = (1 << Data8) *
SizeMultiplier;
XFL_CFI_ADVANCE_PTR8(DataPtr, Interleave);
/*
* 28h-29h : Device interface description (ignored).
*/
XFL_CFI_ADVANCE_PTR16(DataPtr, Interleave);
/*
* 2Ah-2Bh : Maximum number of bytes in write buffer
* = 2^N bytes * (Number of parts).
*/
Data16 = XFlashCFI_Read16((u8*)DataPtr, Interleave, Mode);
if (Data16 != 0) {
InstancePtr->Properties.ProgCap.WriteBufferSize =
(1 << Data16) * SizeMultiplier;
}
XFL_CFI_ADVANCE_PTR16(DataPtr, Interleave);
/*
* 2Ch : Number of erase regions.
* Make sure there are not too many to contain in the instance.
* This will ensure the for loop below doesn't go out of bounds
* on the Geometry.EraseRegion array.
*/
InstancePtr->Geometry.NumEraseRegions = XFlashCFI_Read8(
(u8*)DataPtr,
Interleave,
Mode);
if ((InstancePtr->CommandSet == XFL_CMDSET_AMD_STANDARD) ||
(InstancePtr->CommandSet == XFL_CMDSET_AMD_EXTENDED)) {
if (InstancePtr->Geometry.NumEraseRegions >
XFL_AMD_MAX_ERASE_REGIONS) {
return (XFLASH_TOO_MANY_REGIONS);
}
} else {
if (InstancePtr->Geometry.NumEraseRegions >
XFL_INTEL_MAX_ERASE_REGIONS) {
return (XFLASH_TOO_MANY_REGIONS);
}
}
XFL_CFI_ADVANCE_PTR8(DataPtr, Interleave);
/*
* 2Dh-30h : Erase region #1 definition
* 31h-34h : Erase region #2 definition
* 35h-39h : Erase region #3 definition, etc.
*/
CurrentAbsoluteOffset = 0;
CurrentAbsoluteBlock = 0;
InstancePtr->Geometry.NumBlocks = 0;
for (Index = 0; Index < InstancePtr->Geometry.NumEraseRegions;
Index++) {
/*
* Offset 0-1 : Number of blocks in the region
* = N + 1.
*/
Data16 = XFlashCFI_Read16((u8*)DataPtr, Interleave,
Mode);
InstancePtr->Geometry.EraseRegion[Index].Number = Data16
+ 1;
InstancePtr->Geometry.NumBlocks +=
InstancePtr->Geometry.EraseRegion[Index].Number;
XFL_CFI_ADVANCE_PTR16(DataPtr, Interleave);
/*
* Offset 2-3 : Size of erase blocks in the region
* = N * 256 * (Number of parts).
*/
Data16 = XFlashCFI_Read16((u8*)DataPtr, Interleave,
Mode);
InstancePtr->Geometry.EraseRegion[Index].Size =
Data16 * 256 * SizeMultiplier;
XFL_CFI_ADVANCE_PTR16(DataPtr, Interleave);
/*
* Calculate the part offset where this region begins.
*/
InstancePtr->Geometry.EraseRegion[Index].AbsoluteOffset
= CurrentAbsoluteOffset;
InstancePtr->Geometry.EraseRegion[Index].AbsoluteBlock =
CurrentAbsoluteBlock;
/*
* Increment absolute counters.
*/
CurrentAbsoluteOffset +=
(InstancePtr->Geometry.EraseRegion[Index].Size *
InstancePtr->Geometry.EraseRegion[Index].Number);
CurrentAbsoluteBlock +=
InstancePtr->Geometry.EraseRegion[Index].Number;
}
/*
* Set the absolute offsets for NumEraseRegions+1. This is not a
* real region, but marks one unit past the part's addressable
* region. For example, if the device(s) are a total of 1000
* bytes in size with a total of 10 blocks then 1000 and 10 are
* written to the Absolute parameters. The Size & Number are
* left as zero.
*/
InstancePtr->Geometry.EraseRegion[Index].AbsoluteOffset =
CurrentAbsoluteOffset;
InstancePtr->Geometry.EraseRegion[Index].AbsoluteBlock =
CurrentAbsoluteBlock;
/*
* This ends the query. The following summarizes what attributes
* of the InstancePtr were initialized:
*
* Properties.PartID
* - CommandSet defined.
* - ManufacturerID is defined by the part's Initialize
* function.
* - DeviceID is defined by the part's Initialize function.
*
* Properties.TimeTypical
* Completely defined.
*
* Properties.TimeMax
* Completely defined.
*
* Properties.ProgCap
* - WriteBufferAlignment must be defined by the device.
* It defaults to 0 here.
* - EraseQueueSize must be defined by the device. It
* defaults to 1 here.
*
* Geometry
* Completely defined.
*
*/
InstancePtr->Properties.ProgCap.EraseQueueSize = 1;
/*
* Some of AMD flash have different geometry based on
* type of boot mode. Read boot mode to identify
* location of boot block and parameter blocks.
*/
if (InstancePtr->CommandSet == 0x02) {
/*
* Extended Query Table Offset + 0x0F: Boot mode.
*/
XFL_CFI_POSITION_PTR(DataPtr, BaseAddress, Interleave,
(ExtendedQueryTblOffset + 0x0F));
InstancePtr->Geometry.BootMode =
XFlashCFI_Read8((u8*)DataPtr, Interleave, Mode);
}
/*
* The platform flash (Intel) have multiple banks in same erase
* region. Read number of identical banks in each erase region,
* number of erase blocks and size of blocks in each bank. For
* platfrom flash, library treats each bank as seperate region.
*/
if (((InstancePtr->CommandSet == XFL_CMDSET_INTEL_STANDARD) ||
(InstancePtr->CommandSet == XFL_CMDSET_INTEL_EXTENDED)) &&
(InstancePtr->IsPlatformFlash == 1)) {
Index = 0;
NumEraseRegions = InstancePtr->Geometry.NumEraseRegions;
InstancePtr->Geometry.NumEraseRegions = 0;
CurrentAbsoluteOffset = 0;
CurrentAbsoluteBlock = 0;
Bank = 0;
GeomPtr = &InstancePtr->Geometry;
while (Index < NumEraseRegions) {
/*
* Extended Query Table Offset + 0x24/0x32:
* Number of banks in region.
*/
XFL_CFI_POSITION_PTR(DataPtr, BaseAddress,
Interleave, (ExtendedQueryTblOffset +
0x24 + (Index * 0x0E)));
NumBanks = XFlashCFI_Read16((u8*)DataPtr,
Interleave, Mode);
/*
* Ignore the information about multiple
* operation in bank and region as it is not
* supported by the library
*/
XFL_CFI_ADVANCE_PTR16(DataPtr, Interleave);
XFL_CFI_ADVANCE_PTR16(DataPtr, Interleave);
XFL_CFI_ADVANCE_PTR8(DataPtr, Interleave);
/*
* Extended Query Table Offset + 0x29/0x37:
* Types of erase block in the bank
*/
TypesEraseBlock =
XFlashCFI_Read8((u8*)DataPtr,
Interleave, Mode);
XFL_CFI_ADVANCE_PTR8(DataPtr, Interleave);
while (TypesEraseBlock--) {
/*
* Number of erase block in bank
*/
NumBlockInBank =
XFlashCFI_Read16((u8*)DataPtr,
Interleave, Mode);
NumBlockInBank += 1;
XFL_CFI_ADVANCE_PTR16(DataPtr,
Interleave);
/*
* Size of each erase block in bank
*/
SizeBlockInBank =
XFlashCFI_Read16((u8*)DataPtr,
Interleave, Mode);
SizeBlockInBank *= 256;
/*
* Update flash instance structure
*/
GeomPtr->NumEraseRegions += NumBanks;
while (Bank < GeomPtr->NumEraseRegions){
GeomPtr->EraseRegion[Bank].
Number = NumBlockInBank;
GeomPtr->EraseRegion[Bank].Size
= SizeBlockInBank;
GeomPtr->EraseRegion[Bank].
AbsoluteOffset =
CurrentAbsoluteOffset;
GeomPtr->EraseRegion[Bank].
AbsoluteBlock =
CurrentAbsoluteBlock;
CurrentAbsoluteOffset +=
(GeomPtr->EraseRegion
[Bank].Size *
GeomPtr->EraseRegion
[Bank].Number);
CurrentAbsoluteBlock +=
GeomPtr->EraseRegion
[Bank].Number;
Bank++;
}
XFL_CFI_ADVANCE_PTR16(DataPtr,
Interleave);
XFL_CFI_ADVANCE_PTR16(DataPtr,
Interleave);
XFL_CFI_ADVANCE_PTR16(DataPtr,
Interleave);
}
Index++;
}
GeomPtr->EraseRegion[Bank].AbsoluteOffset =
CurrentAbsoluteOffset;
GeomPtr->EraseRegion[Bank].AbsoluteBlock =
CurrentAbsoluteBlock;
}
/*
* The Micron G18 flash (Intel) have multiple banks in same erase
* region. Read number of identical banks in each erase region,
* number of erase blocks and size of blocks in each bank. For
* Micron G18 flash, library treats each bank as seperate region.
*/
if (InstancePtr->CommandSet == XFL_CMDSET_INTEL_G18) {
Index = 0;
NumEraseRegions = InstancePtr->Geometry.NumEraseRegions;
InstancePtr->Geometry.NumEraseRegions = 0;
CurrentAbsoluteOffset = 0;
CurrentAbsoluteBlock = 0;
Bank = 0;
GeomPtr = &InstancePtr->Geometry;
while (Index < NumEraseRegions) {
/*
* Extended Query Table Offset + 0x22:
* Number of banks in region.
*/
XFL_CFI_POSITION_PTR(DataPtr, BaseAddress,
Interleave, (ExtendedQueryTblOffset +
0x25));
NumBanks = XFlashCFI_Read8((u8*)DataPtr,
Interleave, Mode);
XFL_CFI_ADVANCE_PTR16(DataPtr, Interleave);
XFL_CFI_ADVANCE_PTR16(DataPtr, Interleave);
XFL_CFI_ADVANCE_PTR8(DataPtr, Interleave);
/*
* Extended Query Table Offset + 0x2A:
* Types of erase block in the bank
*/
TypesEraseBlock =
XFlashCFI_Read8((u8*)DataPtr,
Interleave, Mode);
XFL_CFI_ADVANCE_PTR8(DataPtr, Interleave);
while (TypesEraseBlock--) {
/*
* Number of erase block in bank
*/
NumBlockInBank =
XFlashCFI_Read16((u8*)DataPtr,
Interleave, Mode);
NumBlockInBank += 1;
XFL_CFI_ADVANCE_PTR16(DataPtr,
Interleave);
/*
* Size of each erase block in bank
*/
SizeBlockInBank =
XFlashCFI_Read16((u8*)DataPtr,
Interleave, Mode);
SizeBlockInBank *= 256;
/*
* Update flash instance structure
*/
GeomPtr->NumEraseRegions += NumBanks;
while (Bank < GeomPtr->NumEraseRegions){
GeomPtr->EraseRegion[Bank].
Number = NumBlockInBank;
GeomPtr->EraseRegion[Bank].Size
= SizeBlockInBank;
GeomPtr->EraseRegion[Bank].
AbsoluteOffset =
CurrentAbsoluteOffset;
GeomPtr->EraseRegion[Bank].
AbsoluteBlock =
CurrentAbsoluteBlock;
CurrentAbsoluteOffset +=
(GeomPtr->EraseRegion
[Bank].Size *
GeomPtr->EraseRegion
[Bank].Number);
CurrentAbsoluteBlock +=
GeomPtr->EraseRegion
[Bank].Number;
Bank++;
}
}
Index++;
}
GeomPtr->EraseRegion[Bank].AbsoluteOffset =
CurrentAbsoluteOffset;
GeomPtr->EraseRegion[Bank].AbsoluteBlock =
CurrentAbsoluteBlock;
}
}
switch (InstancePtr->Geometry.MemoryLayout) {
case XFL_LAYOUT_X16_X8_X1:
WRITE_FLASH_8(BaseAddress + 0xAA, 0xFF);
break;
case XFL_LAYOUT_X16_X16_X1:
WRITE_FLASH_16(BaseAddress + 0xAA, 0xFF);
break;
case XFL_LAYOUT_X16_X16_X2:
WRITE_FLASH_32(BaseAddress + 0xAA, 0x00FF00FF);
break;
case XFL_LAYOUT_X16_X16_X4:
WRITE_FLASH_64x2(BaseAddress + 0xAA,
0x00FF00FF, 0x00FF00FF);
break;
}
return (Status);
}
#ifdef XPAR_AXI_EMC
/*****************************************************************************/
/**
*
* Reads 8-bits of data from the CFI data location into a local variable.
*
* @param Ptr is the pointer to read. Can be a pointer to any type.
* @param Interleave is the byte interleaving (based on part layout).
* @param Mode is the mode of operation (based on part layout).
*
* @return The byte at Ptr adjusted for the interleave factor.
*
*****************************************************************************/
int XFlashCFI_Read8(u8 *Ptr, u8 Interleave, u8 Mode)
{
return (READ_FLASH_8((u32)Ptr));
}
/*****************************************************************************/
/**
*
* Reads 16-bits of data from the CFI data location into a local variable.
*
* @param Ptr is the pointer to read. Can be a pointer to any type.
* @param Interleave is the byte interleaving (based on part layout).
* @param Mode is the mode of operation (based on part layout).
*
* @return The 16-bit value at Ptr adjusted for the interleave factor.
*
*****************************************************************************/
int XFlashCFI_Read16(u8 *Ptr, u8 Interleave, u8 Mode)
{
int Data = 0;
(Data) = (u8)READ_FLASH_8((u8*)(Ptr) + Interleave);
(Data) <<= 8;
(Data) |= (u8)READ_FLASH_8((u8*)(Ptr));
return Data;
}
#else /* XPAR_XPS_MCH_EMC */
/*****************************************************************************/
/**
*
* Reads 8-bits of data from the CFI data location into a local variable.
*
* @param Ptr is the pointer to read. Can be a pointer to any type.
* @param Interleave is the byte interleaving (based on part layout).
* @param Mode is the mode of operation (based on part layout).
*
* @return The byte at Ptr adjusted for the interleave factor.
*
*****************************************************************************/
int XFlashCFI_Read8(u8 *Ptr, u8 Interleave, u8 Mode)
{
if (Mode == (u8)1) {
Interleave = 1;
}
return (READ_FLASH_8((u32)Ptr + Interleave - 1));
}
/*****************************************************************************/
/**
*
* Reads 16-bits of data from the CFI data location into a local variable.
*
* @param Ptr is the pointer to read. Can be a pointer to any type.
* @param Interleave is the byte interleaving (based on part layout).
* @param Mode is the mode of operation (based on part layout).
*
* @return The 16-bit value at Ptr adjusted for the interleave factor.
*
*****************************************************************************/
int XFlashCFI_Read16(u8 *Ptr, u8 Interleave, u8 Mode)
{
int Data = 0;
if (Mode == (u8)1) {
(Data) = (u8)READ_FLASH_8((u8*)(Ptr) + Interleave);
(Data) <<= 8;
(Data) |= (u8)READ_FLASH_8((u8*)(Ptr));
}
else if (Mode == (u8)2) {
(Data) = (u16)READ_FLASH_8((u8*)(Ptr) + ((Interleave) * 2) - 1);
(Data) <<= 8;
(Data) |= (u16)READ_FLASH_8((u8*)(Ptr) + (Interleave) - 1);
}
return Data;
}
#endif /* XPAR_AXI_EMC */
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