Jim Carver
bug fix
qspi-blockdevice/QSPIFBlockDevice.cpp
- Committer:
- JimCarver
- Date:
- 2018-10-12
- Revision:
- 0:6b753f761943
File content as of revision 0:6b753f761943:
/* mbed Microcontroller Library
* Copyright (c) 2016 ARM Limited
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//#include "./mbed-os/drivers/qspi.h"
#define DEVICE_QSPI 1
#include "QSPIFBlockDevice.h"
/* Default QSPIF Parameters */
/****************************/
#define QSPIF_DEFAULT_READ_SIZE 1
#define QSPIF_DEFAULT_PROG_SIZE 1
#define QSPIF_DEFAULT_SE_SIZE 4096
#define QSPI_MAX_STATUS_REGISTER_SIZE 2
#define QSPI_STATUS_REGISTER_WRITE_TIMEOUT_MSEC 50
#define QSPIF_DEFAULT_TIMEOUT_MSEC 1
/* SFDP Header Parsing */
/***********************/
#define QSPIF_SFDP_HEADER_SIZE 8
#define QSPIF_PARAM_HEADER_SIZE 8
/* Basic Parameters Table Parsing */
/**********************************/
#define SFDP_DEFAULT_BASIC_PARAMS_TABLE_SIZE_BYTES 64 /* 16 DWORDS */
//READ Instruction support according to BUS Configuration
#define QSPIF_BASIC_PARAM_TABLE_FAST_READ_SUPPORT_BYTE 2
#define QSPIF_BASIC_PARAM_TABLE_QPI_READ_SUPPOR_BYTE 16
#define QSPIF_BASIC_PARAM_TABLE_444_READ_INST_BYTE 27
#define QSPIF_BASIC_PARAM_TABLE_144_READ_INST_BYTE 9
#define QSPIF_BASIC_PARAM_TABLE_114_READ_INST_BYTE 11
#define QSPIF_BASIC_PARAM_TABLE_222_READ_INST_BYTE 23
#define QSPIF_BASIC_PARAM_TABLE_122_READ_INST_BYTE 15
#define QSPIF_BASIC_PARAM_TABLE_112_READ_INST_BYTE 13
#define QSPIF_BASIC_PARAM_TABLE_PAGE_SIZE_BYTE 40
// Quad Enable Params
#define QSPIF_BASIC_PARAM_TABLE_QER_BYTE 58
#define QSPIF_BASIC_PARAM_TABLE_444_MODE_EN_SEQ_BYTE 56
// Erase Types Params
#define QSPIF_BASIC_PARAM_ERASE_TYPE_1_BYTE 29
#define QSPIF_BASIC_PARAM_ERASE_TYPE_2_BYTE 31
#define QSPIF_BASIC_PARAM_ERASE_TYPE_3_BYTE 33
#define QSPIF_BASIC_PARAM_ERASE_TYPE_4_BYTE 35
#define QSPIF_BASIC_PARAM_ERASE_TYPE_1_SIZE_BYTE 28
#define QSPIF_BASIC_PARAM_ERASE_TYPE_2_SIZE_BYTE 30
#define QSPIF_BASIC_PARAM_ERASE_TYPE_3_SIZE_BYTE 32
#define QSPIF_BASIC_PARAM_ERASE_TYPE_4_SIZE_BYTE 34
#define QSPIF_BASIC_PARAM_4K_ERASE_TYPE_BYTE 1
// Debug Printouts
#define QSPIF_DEBUG_ERROR 1
#define QSPIF_DEBUG_WARNING 2
#define QSPIF_DEBUG_INFO 3
#define QSPIF_DEBUG_DEBUG 4
#define QSPIF_DEBUG_TRACE 5
// #define QSPIF_DEFAULT_DEBUG_LEVEL QSPIF_DEBUG_INFO
// #define QSPIF_DEFAULT_DEBUG_LEVEL QSPIF_DEBUG_TRACE
#define QSPIF_DEFAULT_DEBUG_LEVEL QSPIF_DEBUG_WARNING
enum qspif_default_instructions {
QSPIF_NOP = 0x00, // No operation
QSPIF_PP = 0x02, // Page Program data
QSPIF_READ = 0x03, // Read data
QSPIF_SE = 0x20, // 4KB Sector Erase
QSPIF_SFDP = 0x5a, // Read SFDP
QSPIF_WRSR = 0x01, // Write Status/Configuration Register
QSPIF_WRDI = 0x04, // Write Disable
QSPIF_RDSR = 0x05, // Read Status Register
QSPIF_WREN = 0x06, // Write Enable
QSPIF_RSTEN = 0x66, // Reset Enable
QSPIF_RST = 0x99, // Reset
QSPIF_RDID = 0x9f, // Read Manufacturer and JDEC Device ID
};
#define __FILENAME__ (strrchr(__FILE__, '/') ? strrchr(__FILE__, '/') + 1 : __FILE__)
#define QSPIF_LOG(level,...) {\
if (level <= QSPIF_DEFAULT_DEBUG_LEVEL) {\
char str[256];\
sprintf(str, "\n[%s][%s:%d], ", __FILENAME__, __FUNCTION__, __LINE__);\
sprintf(str+strlen(str),__VA_ARGS__);\
printf(str);\
}\
}
// Mutex is used for some QSPI Driver commands that must be done sequentially with no other commands in between
// e.g. (1)Set Write Enable, (2)Program, (3)Wait Memory Ready
SingletonPtr<PlatformMutex> QSPIFBlockDevice::_mutex;
/********* Public API Functions *********/
/****************************************/
QSPIFBlockDevice::QSPIFBlockDevice(PinName io0, PinName io1, PinName io2, PinName io3, PinName sclk, PinName csel,
int clock_mode, int freq)
: _qspi(io0, io1, io2, io3, sclk, csel, clock_mode), _deviceSizeBytes(0)
{
//_cs = 1;
is_initialized = false;
_minCommonEraseSize = 0;
_regions_count = 1;
_region_erase_types[0] = 0;
//Default Bus Setup 1_1_1 with 0 dummy and mode cycles
_inst_width = QSPI_CFG_BUS_SINGLE;
_address_width = QSPI_CFG_BUS_SINGLE;
_address_size = QSPI_CFG_ADDR_SIZE_24;
_alt_width = QSPI_CFG_BUS_SINGLE;
_alt_size = QSPI_CFG_ALT_SIZE_8;
_data_width = QSPI_CFG_BUS_SINGLE;
_dummy_and_mode_cycles = 0;
if (QSPI_STATUS_OK != _qspiSetFrequency(freq)) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: QSPI Set Frequency Failed");
}
}
int QSPIFBlockDevice::init()
{
uint8_t vendor_device_ids[4];
size_t data_length = 3;
_mutex->lock();
if (is_initialized == true) {
_mutex->unlock();
return 0;
}
// Soft Reset
if ( -1 == _resetFlashMem()) {
QSPIF_LOG(QSPIF_DEBUG_INFO, "ERROR: init - Unable to initialize flash memory, tests failed\n");
return -1;
} else {
QSPIF_LOG(QSPIF_DEBUG_INFO, "INFO: Initialize flash memory OK\n");
}
/* Read Manufacturer ID (1byte), and Device ID (2bytes)*/
int status = _qspiSendReadCommand(QSPIF_RDID, (char *)vendor_device_ids, 0x0 /*address*/, data_length);
if (status != QSPI_STATUS_OK) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: init - Read Vendor ID Failed");
return status;
}
switch (vendor_device_ids[0]) {
case 0xbf:
// SST devices come preset with block protection
// enabled for some regions, issue write disable instruction to clear
_setWriteEnable();
//_cmdwrite(0x98, 0, 0, 0x0, NULL);
_qspiSendGeneralCommand(QSPIF_WRDI, -1, NULL, 0, NULL, 0);
break;
}
//Synchronize Device
if ( false == _isMemReady()) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: init - _isMemReady Failed");
return BD_ERROR_DEVICE_ERROR;
}
/**************************** Parse SFDP Header ***********************************/
uint32_t basic_table_addr = NULL;
size_t basic_table_size = 0;
uint32_t sector_map_table_addr = NULL;
size_t sector_map_table_size = 0;
if ( 0 != _sfdpParseSFDPHeaders(basic_table_addr, basic_table_size, sector_map_table_addr, sector_map_table_size)) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: init - Parse SFDP Headers Failed");
return BD_ERROR_DEVICE_ERROR;
}
/**************************** Parse Basic Parameters Table ***********************************/
if ( 0 != _sfdpParseBasicParamTable(basic_table_addr, basic_table_size) ) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: init - Parse Basic Param Table Failed");
return BD_ERROR_DEVICE_ERROR;
}
/**************************** Parse Sector Map Table ***********************************/
_region_size_bytes[0] =
_deviceSizeBytes; // If there's no region map, we have a single region sized the entire device size
_region_high_boundary[0] = _deviceSizeBytes - 1;
if ( (sector_map_table_addr != NULL) && (0 != sector_map_table_size) ) {
QSPIF_LOG(QSPIF_DEBUG_INFO, "INFO: init - Parsing Sector Map Table - addr: 0x%xh, Size: %d", sector_map_table_addr,
sector_map_table_size);
if ( 0 != _sfdpParseSectorMapTable(sector_map_table_addr, sector_map_table_size) ) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: init - Parse Sector Map Table Failed");
return BD_ERROR_DEVICE_ERROR;
}
}
// Configure BUS Mode to 1_1_1 for all commands other than Read
_qspiConfiureFormat( QSPI_CFG_BUS_SINGLE, QSPI_CFG_BUS_SINGLE, QSPI_CFG_ADDR_SIZE_24, QSPI_CFG_BUS_SINGLE,
QSPI_CFG_ALT_SIZE_8, QSPI_CFG_BUS_SINGLE, 0);
/*// Soft Reset
if( -1 == _resetFlashMem()) {
QSPIF_LOG(QSPIF_DEBUG_INFO,"ERROR: init - Unable to initialize flash memory, tests failed\n");
return -1;
} else {
QSPIF_LOG(QSPIF_DEBUG_INFO,"INFO: Initialize flash memory OK\n");
}*/
is_initialized = true;
_mutex->unlock();
return 0;
}
int QSPIFBlockDevice::deinit()
{
_mutex->lock();
if (is_initialized == false) {
_mutex->unlock();
return 0;
}
qspi_status_t status = _qspiSendGeneralCommand(QSPIF_WRDI, -1, NULL, 0, NULL, 0);
int result = 0;
if (status != QSPI_STATUS_OK) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Write Disable failed");
result = -1;
}
is_initialized = false;
_mutex->unlock();
return result;
}
int QSPIFBlockDevice::read(void *buffer, bd_addr_t addr, bd_size_t size)
{
int status = 0;
QSPIF_LOG(QSPIF_DEBUG_INFO, "INFO Inst: 0x%xh", _readInstruction);
_mutex->lock();
_qspiConfiureFormat(
_inst_width, //Bus width for Instruction phase
_address_width, //Bus width for Address phase
_address_size,
_alt_width, //Bus width for Alt phase
_alt_size,
_data_width, //Bus width for Data phase
_dummy_and_mode_cycles);
//_qspiConfiureFormat( QSPI_CFG_BUS_SINGLE, QSPI_CFG_BUS_SINGLE, QSPI_CFG_ADDR_SIZE_24, QSPI_CFG_BUS_SINGLE, QSPI_CFG_ALT_SIZE_8, QSPI_CFG_BUS_SINGLE, 8);
if (QSPI_STATUS_OK != _qspiSendReadCommand(_readInstruction, buffer, addr, size)) {
status = -1;
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Read failed\n");
}
// All commands other than Read use default 1-1-1 Bus mode (Program/Erase are constrained by flash memory performance less than that of the bus)
_qspiConfiureFormat( QSPI_CFG_BUS_SINGLE, QSPI_CFG_BUS_SINGLE, QSPI_CFG_ADDR_SIZE_24, QSPI_CFG_BUS_SINGLE,
QSPI_CFG_ALT_SIZE_8, QSPI_CFG_BUS_SINGLE, 0);
_mutex->unlock();
return status;
}
int QSPIFBlockDevice::program(const void *buffer, bd_addr_t addr, bd_size_t size)
{
qspi_status_t result = QSPI_STATUS_OK;
bool program_failed = false;
int status = 0;
uint32_t offset = 0;
uint32_t chunk = 0;
bd_size_t writtenBytes = 0;
while (size > 0) {
// Write on _pageSizeBytes boundaries (Default 256 bytes a page)
offset = addr % _pageSizeBytes;
chunk = (offset + size < _pageSizeBytes) ? size : (_pageSizeBytes - offset);
writtenBytes = chunk;
_mutex->lock();
//Send WREN
if (_setWriteEnable() != 0) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Write Enabe failed\n");
program_failed = true;
goto Exit_Point;
}
if ( false == _isMemReady()) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Device not ready, write failed\n");
program_failed = true;
goto Exit_Point;
}
result = _qspiSendProgramCommand(_progInstruction, buffer, addr, &writtenBytes);
if ( (result != QSPI_STATUS_OK) || (chunk != writtenBytes) ) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Write failed");
program_failed = true;
goto Exit_Point;
}
buffer = static_cast<const uint8_t *>(buffer) + chunk;
addr += chunk;
size -= chunk;
wait_ms(QSPIF_DEFAULT_TIMEOUT_MSEC);
if ( false == _isMemReady()) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Device not ready after write, failed\n");
program_failed = true;
goto Exit_Point;
}
_mutex->unlock();
}
Exit_Point:
if (program_failed) {
_mutex->unlock();
status = -1;
}
return status;
}
int QSPIFBlockDevice::erase(bd_addr_t addr, bd_size_t inSize)
{
int type = 0;
uint32_t chunk = 4096;
unsigned int curEraseInst = _eraseInstruction;
int size = (int)inSize;
bool erase_failed = false;
int status = 0;
// Find region of erased address
int region = _utilsFindAddrRegion((int)addr);
// Erase Types of selected region
uint8_t bitfield = _region_erase_types[region];
while (size > 0) {
// iterate to find next Largest erase type (1) supported by region, 2) smaller than size)
// find the matching instruction and erase size chunk for that type.
type = _utilsIterateNextLargestEraseType(bitfield, (int)size, (int)addr, _region_high_boundary[region]);
curEraseInst = _eraseTypeInstArr[type];
chunk = _eraseTypeSizeArr[type];
QSPIF_LOG(QSPIF_DEBUG_DEBUG, " Debug: addr: 0x%xh, size:%d, Inst: 0x%xh, chunk: %d , ",
(int)addr, (int)size, curEraseInst, chunk);
_mutex->lock();
if (_setWriteEnable() != 0) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: QSPI Erase - Write Enable failed");
erase_failed = true;
goto Exit_Point;
}
if ( false == _isMemReady()) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: QSPI Erase Device not ready - failed");
erase_failed = true;
goto Exit_Point;
}
if (QSPI_STATUS_OK != _qspiSendEraseCommand(curEraseInst, addr, size) ) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: QSPI Erase command failed!");
erase_failed = true;
goto Exit_Point;
}
addr += chunk;
size -= chunk;
if ( (size > 0) && (addr > _region_high_boundary[region]) ) {
// erase crossed to next region
region++;
bitfield = _region_erase_types[region];
}
wait_ms(QSPIF_DEFAULT_TIMEOUT_MSEC);
if ( false == _isMemReady()) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: QSPI After Erase Device not ready - failed\n");
erase_failed = true;
goto Exit_Point;
}
_mutex->unlock();
}
Exit_Point:
if (erase_failed) {
_mutex->unlock();
status = -1;
}
return status;
}
bd_size_t QSPIFBlockDevice::get_read_size() const
{
return QSPIF_DEFAULT_READ_SIZE;
}
bd_size_t QSPIFBlockDevice::get_program_size() const
{
return QSPIF_DEFAULT_PROG_SIZE;
}
bd_size_t QSPIFBlockDevice::get_erase_size() const
{
return _minCommonEraseSize;
}
// Find minimal erase size supported by address region
bd_size_t QSPIFBlockDevice::get_erase_size(bd_addr_t addr)
{
// Find region of current address
int region = _utilsFindAddrRegion((int)addr);
int minRegionEraseSize = _minCommonEraseSize;
int8_t type_mask = 0x01;
int i_ind = 0;
if (region != -1) {
type_mask = 0x01;
for (i_ind = 0; i_ind < 4; i_ind++) {
// loop through erase types supported by region
if (_region_erase_types[region] & type_mask) {
minRegionEraseSize = _eraseTypeSizeArr[i_ind];
break;
}
type_mask = type_mask << 1;
}
if (i_ind == 4) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: no erase type was found for region addr");
}
}
return (bd_size_t)minRegionEraseSize;
}
bd_size_t QSPIFBlockDevice::size() const
{
return _deviceSizeBytes;
}
/*********************************************************/
/********** SFDP Parsing and Detection Functions *********/
/*********************************************************/
int QSPIFBlockDevice::_sfdpParseSectorMapTable(uint32_t sector_map_table_addr, size_t sector_map_table_size)
{
uint8_t sector_map_table[SFDP_DEFAULT_BASIC_PARAMS_TABLE_SIZE_BYTES]; /* Up To 16 DWORDS = 64 Bytes */
uint32_t tmpRegionSize = 0;
int i_ind = 0;
int prevBoundary = 0;
// Default set to all type bits 1-4 are common
_minCommonEraseType = 0x0F;
qspi_status_t status = _qspiSendReadCommand(QSPIF_SFDP, (char *)sector_map_table, sector_map_table_addr /*address*/,
sector_map_table_size);
if (status != QSPI_STATUS_OK) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: init - Read SFDP First Table Failed");
return -1;
}
//QSPIF_LOG(QSPIF_DEBUG_DEBUG,\nDEBUG: "Read table: %x %x %x %x %x %x %x %x %x[56] %x[57] %x[58] %x[59] %x[52]\n",sector_map_table[0],
// sector_map_table[1],
// sector_map_table[2],
// sector_map_table[3],
// sector_map_table[4],
// sector_map_table[5],
// sector_map_table[6],
// sector_map_table[7], sector_map_table[56], sector_map_table[57], sector_map_table[58], sector_map_table[59], sector_map_table[52]);
// Currently we support only Single Map Descriptor
if (! ( (sector_map_table[0] & 0x3) == 0x03 ) && (sector_map_table[1] == 0x0) ) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Sector Map - Supporting Only Single! Map Descriptor (not map commands)");
return -1;
}
_regions_count = sector_map_table[2] + 1;
if (_regions_count > QSPIF_MAX_REGIONS) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Supporting up to %d regions, current setup to %d regions - fail",
QSPIF_MAX_REGIONS, _regions_count);
return -1;
}
// Loop through Regions and set for each one: size, supported erase types, high boundary offset
// Calculate minimum Common Erase Type for all Regions
for (i_ind = 0; i_ind < _regions_count; i_ind++) {
tmpRegionSize = ((*((uint32_t *)§or_map_table[(i_ind + 1) * 4])) >> 8) & 0x00FFFFFF; // bits 9-32
_region_size_bytes[i_ind] = (tmpRegionSize + 1) * 256; // Region size is 0 based multiple of 256 bytes;
_region_erase_types[i_ind] = sector_map_table[(i_ind + 1) * 4] & 0x0F; // bits 1-4
_minCommonEraseType &= _region_erase_types[i_ind];
_region_high_boundary[i_ind] = (_region_size_bytes[i_ind] - 1) + prevBoundary;
prevBoundary = _region_high_boundary[i_ind] + 1;
}
// Calc minimum Common Erase Size from _minCommonEraseType
uint8_t type_mask = 0x01;
for (i_ind = 0; i_ind < 4; i_ind++) {
if (_minCommonEraseType & type_mask) {
_minCommonEraseType = i_ind;
_minCommonEraseSize = _eraseTypeSizeArr[i_ind];
break;
}
type_mask = type_mask << 1;
}
if (i_ind == 4) {
// No common erase type was found between regions
_minCommonEraseType = 0;
_minCommonEraseSize = -1;
}
return 0;
}
int QSPIFBlockDevice::_sfdpParseBasicParamTable(uint32_t basic_table_addr, size_t basic_table_size)
{
uint8_t param_table[SFDP_DEFAULT_BASIC_PARAMS_TABLE_SIZE_BYTES]; /* Up To 16 DWORDS = 64 Bytes */
qspi_status_t status = _qspiSendReadCommand(QSPIF_SFDP, (char *)param_table, basic_table_addr /*address*/,
basic_table_size);
if (status != QSPI_STATUS_OK) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: init - Read SFDP First Table Failed, Status %d",status);
return -1;
}
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: Read table: %x %x %x %x %x %x %x %x %x[56] %x[57] %x[58] %x[59] %x[52]\n",
param_table[0],
param_table[1],
param_table[2],
param_table[3],
param_table[4],
param_table[5],
param_table[6],
param_table[7], param_table[56], param_table[57], param_table[58], param_table[59], param_table[52]);
// Check address size, currently only supports 3byte addresses
if ((param_table[2] & 0x4) != 0 || (param_table[7] & 0x80) != 0) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: init - verify 3byte addressing Failed");
return -1;
}
// Get device density (stored in bits - 1)
uint32_t density_bits = (
(param_table[7] << 24) |
(param_table[6] << 16) |
(param_table[5] << 8 ) |
param_table[4] );
_deviceSizeBytes = (density_bits + 1) / 8;
// Set Default read/program/erase Instructions
_readInstruction = QSPIF_READ;
_progInstruction = QSPIF_PP;
_eraseInstruction = QSPIF_SE;
// Set Page Size (QSPI write must be done on Page limits)
_pageSizeBytes = _sfdpDetectPageSize(param_table);
// Detect and Set Erase Types
bool shouldSetQuadEnable = false;
bool isQPIMode = false;
_sfdpDetectEraseTypesInstAndSize(param_table, _erase4KInst, _eraseTypeInstArr, _eraseTypeSizeArr);
_eraseInstruction = _erase4KInst;
// Detect and Set fastest Bus mode (default 1-1-1)
_sfdpDetectBestBusReadMode(param_table, shouldSetQuadEnable, isQPIMode, _readInstruction);
if (true == shouldSetQuadEnable) {
// Set Quad Enable and QPI Bus modes if Supported
QSPIF_LOG(QSPIF_DEBUG_INFO, "INFO: init - Setting Quad Enable");
_sfdpSetQuadEnabled(param_table);
if (true == isQPIMode) {
QSPIF_LOG(QSPIF_DEBUG_INFO, "INFO: init - Setting QPI mode");
_sfdpSetQPIEnabled(param_table);
}
}
return 0;
}
int QSPIFBlockDevice::_sfdpParseSFDPHeaders(uint32_t& basic_table_addr, size_t& basic_table_size,
uint32_t& sector_map_table_addr, size_t& sector_map_table_size)
{
uint8_t sfdp_header[QSPIF_SFDP_HEADER_SIZE];
uint8_t param_header[QSPIF_PARAM_HEADER_SIZE];
size_t data_length = QSPIF_SFDP_HEADER_SIZE;
bd_addr_t addr = 0x0;
// Set 1-1-1 bus mode for SFDP header parsing
_qspiConfiureFormat( QSPI_CFG_BUS_SINGLE, QSPI_CFG_BUS_SINGLE, QSPI_CFG_ADDR_SIZE_24, QSPI_CFG_BUS_SINGLE,
QSPI_CFG_ALT_SIZE_8, QSPI_CFG_BUS_SINGLE, 8);
qspi_status_t status = _qspiSendReadCommand(QSPIF_SFDP, (char *)sfdp_header, addr /*address*/, data_length);
if (status != QSPI_STATUS_OK) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: init - Read SFDP Failed");
return -1;
}
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG11: Read SFDP Header: %x %x %x %x %x %x %x %x\n", sfdp_header[0],
sfdp_header[1],
sfdp_header[2],
sfdp_header[3],
sfdp_header[4],
sfdp_header[5],
sfdp_header[6],
sfdp_header[7]);
// Verify SFDP signature for sanity
// Also check that major/minor version is acceptable
if (!(memcmp(&sfdp_header[0], "SFDP", 4) == 0 && sfdp_header[5] == 1)) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: init - _verify SFDP signature and version Failed");
return -1;
} else {
QSPIF_LOG(QSPIF_DEBUG_INFO, "INFO: init - verified SFDP Signature and version Successfully");
}
// Discover Number of Parameter Headers
int number_of_param_headers = (int)(sfdp_header[6]) + 1;
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: number of Param Headers: %d", number_of_param_headers);
addr += QSPIF_SFDP_HEADER_SIZE;
data_length = QSPIF_PARAM_HEADER_SIZE;
// Loop over Param Headers and parse them (currently supported Basic Param Table and Sector Region Map Table)
for (int i_ind = 0; i_ind < number_of_param_headers; i_ind++) {
status = _qspiSendReadCommand(QSPIF_SFDP, (char *)param_header, addr, data_length);
if (status != QSPI_STATUS_OK) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: init - Read Param Table %d Failed", i_ind + 1);
return -1;
}
// The SFDP spec indicates the standard table is always at offset 0
// in the parameter headers, we check just to be safe
if (param_header[2] != 1) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Param Table %d - Major Version should be 1!", i_ind + 1);
return -1;
}
if ((param_header[0] == 0) && (param_header[7] == 0xFF)) {
// Found Basic Params Table: LSB=0x00, MSB=0xFF
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: Found Basic Param Table at Table: %d", i_ind + 1);
basic_table_addr = ( (param_header[6] << 16) | (param_header[5] << 8) | (param_header[4]) );
// Supporting up to 64 Bytes Table (16 DWORDS)
basic_table_size = ((param_header[3] * 4) < SFDP_DEFAULT_BASIC_PARAMS_TABLE_SIZE_BYTES) ? (param_header[11] * 4) : 64;
} else if ((param_header[0] == 81) && (param_header[7] == 0xFF)) {
// Found Sector Map Table: LSB=0x81, MSB=0xFF
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: Found Sector Map Table at Table: %d", i_ind + 1);
sector_map_table_addr = ( (param_header[6] << 16) | (param_header[5] << 8) | (param_header[4]) );
sector_map_table_size = param_header[3] * 4;
}
addr += QSPIF_PARAM_HEADER_SIZE;
}
return 0;
}
int QSPIFBlockDevice::_sfdpSetQPIEnabled(uint8_t *basicParamTablePtr)
{
uint8_t config_reg[1];
// QPI 4-4-4 Enable Procedure is specified in 5 Bits
uint8_t en_seq_444_value = ( ((basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_444_MODE_EN_SEQ_BYTE] & 0xF0) >> 4) | ((
basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_444_MODE_EN_SEQ_BYTE + 1] & 0x01) << 4 ));
switch (en_seq_444_value) {
case 1:
case 2:
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: _setQPIEnabled - send command 38h");
/*if (_setWriteEnable() != 0) {
printf("ERROR: Write Enabe failed\n");
return -1;
}
if( false == _isMemReady()) {
printf("ERROR: Device not ready, write failed\n");
return -1;
}*/
_qspiSendGeneralCommand(0x38, -1, NULL, 0, NULL, 0);
/*wait_ms(QSPI_STATUS_REGISTER_WRITE_TIMEOUT_MSEC);
if( false == _isMemReady()) {
printf("ERROR: Device not ready after write, failed\n");
return -1;
}*/
break;
case 4:
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: _setQPIEnabled - send command 35h");
_qspiSendGeneralCommand(0x35, -1, NULL, 0, NULL, 0);
break;
case 8:
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: _setQPIEnabled - set config bit 6 and send command 71h");
_qspiSendGeneralCommand(0x65, 0x800003, NULL, 0, (char *)config_reg, 1);
config_reg[1] |= 0x40; //Set Bit 6
_qspiSendGeneralCommand(0x71, 0x800003, NULL, 0, (char *)config_reg, 1);
break;
case 16:
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: _setQPIEnabled - reset config bits 0-7 and send command 61h");
_qspiSendGeneralCommand(0x65, -1, NULL, 0, (char *)config_reg, 1);
config_reg[1] &= 0x7F; //Reset Bit 7 of CR
/*
if (_setWriteEnable() != 0) {
printf("ERROR: Write Enabe failed\n");
return -1;
}
if( false == _isMemReady()) {
printf("ERROR: Device not ready, write failed\n");
return -1;
}*/
_qspiSendGeneralCommand(0x61, -1, NULL, 0, (char *)config_reg, 1);
/* wait_ms(QSPI_STATUS_REGISTER_WRITE_TIMEOUT_MSEC);
if( false == _isMemReady()) {
printf("ERROR: Device not ready after write, failed\n");
return -1;
}
_qspiSendGeneralCommand(0x65, -1, NULL, 0, (char *)config_reg, 1);
if (_setWriteEnable() != 0) {
printf("ERROR: Write Enabe failed\n");
return -1;
}
if( false == _isMemReady()) {
printf("ERROR: Device not ready, write failed\n");
return -1;
}
config_reg[1] = 0x00; //Reset Bits 0-7
_qspiSendGeneralCommand(0x61, -1, NULL, 0, (char *)config_reg, 1);
wait_ms(QSPI_STATUS_REGISTER_WRITE_TIMEOUT_MSEC);*/
/* if( false == _isMemReady()) {
printf("ERROR: Device not ready after write, failed\n");
return -1;
}*/
break;
default:
QSPIF_LOG(QSPIF_DEBUG_WARNING, "WARNING: _setQPIEnabled - Unsuported En Seq 444 configuration");
break;
}
return 0;
}
int QSPIFBlockDevice::_sfdpSetQuadEnabled(uint8_t *basicParamTablePtr)
{
int sr_read_size = QSPI_MAX_STATUS_REGISTER_SIZE;
int sr_write_size = QSPI_MAX_STATUS_REGISTER_SIZE;
int status_reg_setup[QSPI_MAX_STATUS_REGISTER_SIZE];
uint8_t status_reg[QSPI_MAX_STATUS_REGISTER_SIZE];
unsigned int writeRegisterInst = QSPIF_WRSR;
unsigned int readRegisterInst = QSPIF_RDSR;
uint8_t qer_value = (basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_QER_BYTE] & 0x70) >> 4;
switch (qer_value) {
case 0:
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: Device Does not Have a QE Bit, continue based on Read Inst");
return 0;
case 1:
case 4:
status_reg_setup[0] = 0;
status_reg_setup[1] = 0x02;
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: Setting QE Bit, Bit 1 of Status Reg 2");
break;
case 2:
status_reg_setup[0] = 0x40;
status_reg_setup[1] = 0;
sr_write_size = 1;
sr_read_size = 1;
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: Setting QE Bit, Bit 6 of Status Reg 1");
break;
case 3:
status_reg_setup[0] = 0x80; // Bit 7 of Status Reg 1
status_reg_setup[1] = 0;
sr_write_size = 1;
sr_read_size = 1;
writeRegisterInst = 0x3E;
readRegisterInst = 0x3F;
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: Setting QE Bit, Bit 7 of Status Reg 1");
break;
case 5:
status_reg_setup[0] = 0;
status_reg_setup[1] = 0x02;
readRegisterInst = 0x35;
sr_read_size = 1;
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: Setting QE Bit, Bit 1 of Status Reg 2 -special read command");
break;
default:
QSPIF_LOG(QSPIF_DEBUG_WARNING, "WARNING: _setQuadEnable - Unsuported QER configuration");
break;
}
// Read Status Register
if (QSPI_STATUS_OK == _qspiSendGeneralCommand(readRegisterInst, -1, NULL, 0, (char *)status_reg,
sr_read_size) ) { // store received values in status_value
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: Reading Status Register Success: value = 0x%x\n", (int)status_reg[0]);
} else {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Reading Status Register failed");
return -1;
}
// Set Bits for Quad Enable
status_reg[0] |= status_reg_setup[0];
status_reg[1] |= status_reg_setup[1];
// Write new Status Register Setup
if (_setWriteEnable() != 0) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Write Enabe failed\n");
return -1;
}
if ( false == _isMemReady()) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Device not ready, write failed");
return -1;
}
if (QSPI_STATUS_OK == _qspiSendGeneralCommand(writeRegisterInst, -1, (char *)status_reg, sr_write_size, NULL,
0) ) { // Write QE to status_register
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: _setQuadEnable - Writing Status Register Success: value = 0x%x",
(int)status_reg[0]);
} else {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: _setQuadEnable - Writing Status Register failed");
return -1;
}
wait_ms(QSPI_STATUS_REGISTER_WRITE_TIMEOUT_MSEC);
if ( false == _isMemReady()) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Device not ready after write, failed");
return -1;
}
// For Debug
memset(status_reg, 0, QSPI_MAX_STATUS_REGISTER_SIZE);
if (QSPI_STATUS_OK == _qspiSendGeneralCommand(readRegisterInst, -1, NULL, 0, (char *)status_reg,
sr_read_size) ) { // store received values in status_value
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: Reading Status Register Success: value = 0x%x\n", (int)status_reg[0]);
} else {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Reading Status Register failed");
return -1;
}
return 0;//((status_reg[0] & QSPI_STATUS_BIT_QE) != 0 ? 0 : -1);
}
int QSPIFBlockDevice::_sfdpDetectPageSize(uint8_t *basicParamTablePtr)
{
int page2PowerSize = ( (int)basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_PAGE_SIZE_BYTE]) >> 4;
int pageSize = _utilsMathPower(2, page2PowerSize);
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: _detectPageSize - Page Size: %d", pageSize);
return pageSize;
}
int QSPIFBlockDevice::_sfdpDetectEraseTypesInstAndSize(uint8_t *basicParamTablePtr, unsigned int& erase4KInst,
unsigned int *eraseTypeInstArr, unsigned int *eraseTypeSizeArr)
{
erase4KInst = 0xff;
bool found4KEraseType = false;
uint8_t bitfield = 0x01;
// Erase 4K Inst is taken either from param table legacy 4K erase or superseded by erase Instruction for type of size 4K
erase4KInst = basicParamTablePtr[QSPIF_BASIC_PARAM_4K_ERASE_TYPE_BYTE];
// Loop Erase Types 1-4
for (int i_ind = 0; i_ind < 4; i_ind++) {
eraseTypeInstArr[i_ind] = 0xff; //0xFF default for unsupported type
eraseTypeSizeArr[i_ind] = _utilsMathPower(2, basicParamTablePtr[QSPIF_BASIC_PARAM_ERASE_TYPE_1_SIZE_BYTE + 2 * i_ind]);
if (eraseTypeSizeArr[i_ind] > 1) {
// if size==1 type is not supported
eraseTypeInstArr[i_ind] = basicParamTablePtr[QSPIF_BASIC_PARAM_ERASE_TYPE_1_BYTE + 2 * i_ind];
if ((eraseTypeSizeArr[i_ind] < _minCommonEraseSize) || (_minCommonEraseSize == 0) ) {
//Set default minimal common erase for singal region
_minCommonEraseSize = eraseTypeSizeArr[i_ind];
}
if (eraseTypeSizeArr[i_ind] == 4096) {
found4KEraseType = true;
if (erase4KInst != eraseTypeInstArr[i_ind]) {
//Verify 4KErase Type is identical to Legacy 4K erase type specified in Byte 1 of Param Table
erase4KInst = eraseTypeInstArr[i_ind];
QSPIF_LOG(QSPIF_DEBUG_WARNING,
"WARNING: _detectEraseTypesInstAndSize - Default 4K erase Inst is different than erase type Inst for 4K");
}
}
_region_erase_types[0] |= bitfield; // If there's no region map, set region "0" types as defualt;
}
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: Erase Type %d - Inst: 0x%xh, Size: %d", (i_ind + 1), eraseTypeInstArr[i_ind],
eraseTypeSizeArr[i_ind]);
bitfield = bitfield << 1;
}
if (false == found4KEraseType) {
QSPIF_LOG(QSPIF_DEBUG_WARNING, "WARNING: Couldn't find Erase Type for 4KB size");
}
return 0;
}
int QSPIFBlockDevice::_sfdpDetectBestBusReadMode(uint8_t *basicParamTablePtr, bool& setQuadEnable, bool& isQPIMode,
unsigned int& readInst)
{
bool isDone = false;
setQuadEnable = false;
isQPIMode = false;
int dummyCycles = 0;
uint8_t examinedByte = basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_QPI_READ_SUPPOR_BYTE];
do { // compound statement is the loop body
if (examinedByte & 0x10) {
// QPI 4-4-4 Supported
readInst = basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_444_READ_INST_BYTE];
setQuadEnable = true;
isQPIMode = true;
_dummy_and_mode_cycles = (basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_444_READ_INST_BYTE - 1] >> 5)
+ (basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_444_READ_INST_BYTE - 1] & 0x1F);
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "/nDEBUG: Read Bus Mode set to 4-4-4, Instruction: 0x%xh", _readInstruction);
//_inst_width = QSPI_CFG_BUS_QUAD;
_address_width = QSPI_CFG_BUS_QUAD;
_data_width = QSPI_CFG_BUS_QUAD;
break;
}
examinedByte = basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_FAST_READ_SUPPORT_BYTE];
if (examinedByte & 0x40) {
// Fast Read 1-4-4 Supported
readInst = basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_144_READ_INST_BYTE];
setQuadEnable = true;
// dummy cycles + mode cycles = Dummy Cycles
_dummy_and_mode_cycles = (basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_144_READ_INST_BYTE - 1] >> 5)
+ (basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_144_READ_INST_BYTE - 1] & 0x1F);
_address_width = QSPI_CFG_BUS_QUAD;
_data_width = QSPI_CFG_BUS_QUAD;
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "/nDEBUG: Read Bus Mode set to 1-4-4, Instruction: 0x%xh", _readInstruction);
break;
}
if (examinedByte & 0x80) {
// Fast Read 1-1-4 Supported
readInst = basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_114_READ_INST_BYTE];
setQuadEnable = true;
_dummy_and_mode_cycles = (basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_114_READ_INST_BYTE - 1] >> 5)
+ (basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_114_READ_INST_BYTE - 1] & 0x1F);
_data_width = QSPI_CFG_BUS_QUAD;
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "/nDEBUG: Read Bus Mode set to 1-1-4, Instruction: 0x%xh", _readInstruction);
break;
}
examinedByte = basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_QPI_READ_SUPPOR_BYTE];
if (examinedByte & 0x01) {
// Fast Read 2-2-2 Supported
readInst = basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_222_READ_INST_BYTE];
_dummy_and_mode_cycles = (basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_222_READ_INST_BYTE - 1] >> 5)
+ (basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_222_READ_INST_BYTE - 1] & 0x1F);
_address_width = QSPI_CFG_BUS_DUAL;
_data_width = QSPI_CFG_BUS_DUAL;
QSPIF_LOG(QSPIF_DEBUG_INFO, "/nINFO: Read Bus Mode set to 2-2-2, Instruction: 0x%xh", _readInstruction);
break;
}
examinedByte = basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_FAST_READ_SUPPORT_BYTE];
if (examinedByte & 0x20) {
// Fast Read 1-2-2 Supported
readInst = basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_122_READ_INST_BYTE];
_dummy_and_mode_cycles = (basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_122_READ_INST_BYTE - 1] >> 5)
+ (basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_122_READ_INST_BYTE - 1] & 0x1F);
_address_width = QSPI_CFG_BUS_DUAL;
_data_width = QSPI_CFG_BUS_DUAL;
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "/nDEBUG: Read Bus Mode set to 1-2-2, Instruction: 0x%xh", _readInstruction);
break;
}
if (examinedByte & 0x01) {
// Fast Read 1-1-2 Supported
readInst = basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_112_READ_INST_BYTE];
_dummy_and_mode_cycles = (basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_112_READ_INST_BYTE - 1] >> 5)
+ (basicParamTablePtr[QSPIF_BASIC_PARAM_TABLE_112_READ_INST_BYTE - 1] & 0x1F);
_data_width = QSPI_CFG_BUS_DUAL;
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "/nDEBUG: Read Bus Mode set to 1-1-2, Instruction: 0x%xh", _readInstruction);
break;
}
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "/nDEBUG: Read Bus Mode set to 1-1-1, Instruction: 0x%xh", _readInstruction);
isDone = true;
} while (isDone == false);
return 0;
}
int QSPIFBlockDevice::_resetFlashMem()
{
int status = 0;
char status_value[2] = {0};
QSPIF_LOG(QSPIF_DEBUG_ERROR, "INFO: _resetFlashMem:\n");
//Read the Status Register from device
if (QSPI_STATUS_OK == _qspiSendGeneralCommand(QSPIF_RDSR, -1, NULL, 0, status_value,
1) ) { // store received values in status_value
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: Reading Status Register Success: value = 0x%x\n", (int)status_value[0]);
} else {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Reading Status Register failed\n");
status = -1;
}
if (0 == status) {
//Send Reset Enable
if (QSPI_STATUS_OK == _qspiSendGeneralCommand(QSPIF_RSTEN, -1, NULL, 0, NULL,
0) ) { // store received values in status_value
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: Sending RSTEN Success\n");
} else {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Sending RSTEN failed\n");
status = -1;
}
if (0 == status) {
//Send Reset
if (QSPI_STATUS_OK == _qspiSendGeneralCommand(QSPIF_RST, -1, NULL, 0, NULL,
0)) { // store received values in status_value
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "DEBUG: Sending RST Success\n");
} else {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Sending RST failed\n");
status = -1;
}
_isMemReady();
}
}
return status;
}
bool QSPIFBlockDevice::_isMemReady()
{
char status_value[2];
int retries = 0;
bool memReady = true;
do {
retries++;
//Read the Status Register from device
if (QSPI_STATUS_OK != _qspiSendGeneralCommand(QSPIF_RDSR, -1, NULL, 0, status_value,
2)) { // store received values in status_value
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Reading Status Register failed\n");
}
} while ( (status_value[0] & 0x1) != 0 && retries < 10000 );
if ((status_value[0] & 0x1) != 0) {
QSPIF_LOG(QSPIF_DEBUG_DEBUG, "ERROR: _isMemReady FALSE\n");
memReady = false;
}
return memReady;
}
int QSPIFBlockDevice::_setWriteEnable()
{
int status = 0;
if (QSPI_STATUS_OK != _qspiSendGeneralCommand(QSPIF_WREN, -1, NULL, 0, NULL, 0)) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR:Sending WREN command FAILED\n");
status = -1;
}
return status;
}
/*********************************************/
/************* Utility Functions *************/
/*********************************************/
int QSPIFBlockDevice::_utilsMathPower(int base, int exp)
{
int result = 1;
while (exp) {
result *= base;
exp--;
}
return result;
}
int QSPIFBlockDevice::_utilsFindAddrRegion(int offset)
{
if ((offset > (int)_deviceSizeBytes) || (_regions_count == 0)) {
return -1;
}
if (_regions_count == 1) {
return 0;
}
for (int i_ind = _regions_count - 2; i_ind >= 0; i_ind--) {
if (offset > _region_high_boundary[i_ind]) {
return (i_ind + 1);
}
}
return -1;
}
int QSPIFBlockDevice::_utilsIterateNextLargestEraseType(uint8_t& bitfield, int size, int offset, int boundry)
{
uint8_t type_mask = 0x08;
int i_ind = 0;
int largestEraseType = 0;
for (i_ind = 3; i_ind >= 0; i_ind--) {
if (bitfield & type_mask) {
largestEraseType = i_ind;
if ( (size > _eraseTypeSizeArr[largestEraseType]) &&
((boundry - offset) > _eraseTypeSizeArr[largestEraseType]) ) {
break;
} else {
bitfield &= ~type_mask;
}
}
type_mask = type_mask >> 1;
}
if (i_ind == 4) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: no erase type was found for current region addr");
}
return largestEraseType;
}
/***************************************************/
/*********** QSPI Driver API Functions *************/
/***************************************************/
qspi_status_t QSPIFBlockDevice::_qspiSetFrequency(int freq)
{
return _qspi.set_frequency(freq);
}
qspi_status_t QSPIFBlockDevice::_qspiSendReadCommand(unsigned int readInst, void *buffer, bd_addr_t addr,
bd_size_t size)
{
// Check the address and size fit onto the chip.
/* OFR_DBG */
//MBED_ASSERT(is_valid_read(addr, size));
size_t bufLen = size;
if (_qspi.read( readInst, -1, (unsigned int )addr, (char *)buffer, &bufLen) != QSPI_STATUS_OK ) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: Read failed");
return QSPI_STATUS_ERROR;
}
return QSPI_STATUS_OK;
}
qspi_status_t QSPIFBlockDevice::_qspiSendProgramCommand(unsigned int progInst, const void *buffer, bd_addr_t addr,
bd_size_t *size)
{
// Check the address and size fit onto the chip.
//MBED_ASSERT(is_valid_program(addr, (*size)));
qspi_status_t result = QSPI_STATUS_OK;
result = _qspi.write( progInst, -1, addr/*(((unsigned int)addr) & 0x00FFFF00)*/, (char *)buffer, (size_t *)size);
if (result != QSPI_STATUS_OK) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: QSPI Write failed");
}
return result;
}
qspi_status_t QSPIFBlockDevice::_qspiSendEraseCommand(unsigned int eraseInst, bd_addr_t addr, bd_size_t size)
{
// Check the address and size fit onto the chip.
//MBED_ASSERT(is_valid_erase(addr, size));
qspi_status_t result = QSPI_STATUS_OK;
result = _qspi.command_transfer(eraseInst, // command to send
(((int)addr) & 0x00FFF000), // Align addr to 4096
NULL, // do not transmit
0, // do not transmit
NULL, // just receive two bytes of data
0); // store received values in status_value
if (QSPI_STATUS_OK != result) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR: QSPI Erase failed");
}
return result;
}
qspi_status_t QSPIFBlockDevice::_qspiSendGeneralCommand(unsigned int instruction, bd_addr_t addr, const char *tx_buffer,
size_t tx_length, const char *rx_buffer, size_t rx_length)
{
qspi_status_t status = _qspi.command_transfer(instruction, (int)addr, tx_buffer, tx_length, rx_buffer, rx_length);
if (QSPI_STATUS_OK != status) {
QSPIF_LOG(QSPIF_DEBUG_ERROR, "ERROR:Sending Generic command: %x", instruction);
}
return status;
}
qspi_status_t QSPIFBlockDevice::_qspiConfiureFormat(qspi_bus_width_t inst_width, qspi_bus_width_t address_width,
qspi_address_size_t address_size, qspi_bus_width_t alt_width, qspi_alt_size_t alt_size, qspi_bus_width_t data_width,
int dummy_cycles)
{
_qspi.configure_format( inst_width, address_width, address_size, alt_width, alt_size, data_width, dummy_cycles);
return QSPI_STATUS_OK;
}