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Favor QSPI Bus mode 1-4-4 over QPI 

QPI may have slightly better performance, but it is not supported by all targets.
It requires register setup between each Read and Program/Erase commands,
which might damage the overall performance eventually.
pull/9057/head
offirko 2018-12-11 16:20:28 +02:00
parent 40e13cf28c
commit b79c64ec53
2 changed files with 6 additions and 5 deletions
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7
components/storage/blockdevice/COMPONENT_QSPIF/QSPIFBlockDevice.cpp
View File

@ -421,7 +421,7 @@ int QSPIFBlockDevice::erase(bd_addr_t addr, bd_size_t in_size)
if (_set_write_enable() != 0) { if (_set_write_enable() != 0) {
tr_error("QSPI Erase Device not ready - failed"); tr_error("QSPI Erase Device not ready - failed");
erase_failed = true; erase_failed = true;
status = QSPIF_BD_ERROR_READY_FAILED; status = QSPIF_BD_ERROR_WREN_FAILED;
goto exit_point; goto exit_point;
} }
@ -1024,12 +1024,9 @@ int QSPIFBlockDevice::_sfdp_detect_best_bus_read_mode(uint8_t *basic_param_table
//_inst_width = QSPI_CFG_BUS_QUAD; //_inst_width = QSPI_CFG_BUS_QUAD;
_address_width = QSPI_CFG_BUS_QUAD; _address_width = QSPI_CFG_BUS_QUAD;
_data_width = QSPI_CFG_BUS_QUAD; _data_width = QSPI_CFG_BUS_QUAD;
break;
} }
} }
is_qpi_mode = false;
examined_byte = basic_param_table_ptr[QSPIF_BASIC_PARAM_TABLE_FAST_READ_SUPPORT_BYTE]; examined_byte = basic_param_table_ptr[QSPIF_BASIC_PARAM_TABLE_FAST_READ_SUPPORT_BYTE];
if (examined_byte & 0x40) { if (examined_byte & 0x40) {
// Fast Read 1-4-4 Supported // Fast Read 1-4-4 Supported

4
components/storage/blockdevice/COMPONENT_QSPIF/TESTS/block_device/qspif/main.cpp
View File

@ -48,6 +48,10 @@ void basic_erase_program_read_test(QSPIFBlockDevice &blockD, bd_size_t block_siz
{ {
int err = 0; int err = 0;
_mutex->lock(); _mutex->lock();
static unsigned block_seed = 1;
srand(block_seed++);
// Find a random block // Find a random block
bd_addr_t block = (rand() * block_size) % blockD.size(); bd_addr_t block = (rand() * block_size) % blockD.size();