/**
*
* Runs a self-test on the driver/device. The self-test is destructive in that
* a reset of the device is performed in order to check the reset values of
* the registers and to get the device into a known state.
*
* Upon successful return from the self-test, the device is reset.
*
* @param InstancePtr is a pointer to the XQspiPs instance.
*
* @return
* - XST_SUCCESS if successful
* - XST_REGISTER_ERROR indicates a register did not read or write
* correctly.
*
* @note None.
*
******************************************************************************/
int XQspiPs_SelfTest(XQspiPs *InstancePtr)
{
int Status;
u8 DelayTestNss;
u8 DelayTestBtwn;
u8 DelayTestAfter;
u8 DelayTestInit;
Xil_AssertNonvoid(InstancePtr != NULL);
Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
/*
* Reset the QSPI device to leave it in a known good state
*/
XQspiPs_Reset(InstancePtr);
DelayTestNss = 0x5A;
DelayTestBtwn = 0xA5;
DelayTestAfter = 0xAA;
DelayTestInit = 0x55;
/*
* Write and read the delay register, just to be sure there is some
* hardware out there.
*/
Status = XQspiPs_SetDelays(InstancePtr, DelayTestNss, DelayTestBtwn,
DelayTestAfter, DelayTestInit);
if (Status != XST_SUCCESS) {
return Status;
}
XQspiPs_GetDelays(InstancePtr, &DelayTestNss, &DelayTestBtwn,
&DelayTestAfter, &DelayTestInit);
if ((0x5A != DelayTestNss) || (0xA5 != DelayTestBtwn) ||
(0xAA != DelayTestAfter) || (0x55 != DelayTestInit)) {
return XST_REGISTER_ERROR;
}
Status = XQspiPs_SetDelays(InstancePtr, 0, 0, 0, 0);
if (Status != XST_SUCCESS) {
return Status;
}
/*
* Reset the QSPI device to leave it in a known good state
*/
XQspiPs_Reset(InstancePtr);
return XST_SUCCESS;
}
/**
*
* Runs a self-test on the driver/device. The self-test is destructive in that
* a reset of the device is performed in order to check the reset values of
* the registers and to get the device into a known state.
*
* Upon successful return from the self-test, the device is reset.
*
* @param InstancePtr is a pointer to the XQspiPs instance.
*
* @return
* - XST_SUCCESS if successful
* - XST_REGISTER_ERROR indicates a register did not read or write
* correctly.
*
* @note None.
*
******************************************************************************/
int XQspiPs_SelfTest(XQspiPs *InstancePtr)
{
int Status;
u32 Register;
u8 DelayTestNss;
u8 DelayTestBtwn;
u8 DelayTestAfter;
u8 DelayTestInit;
Xil_AssertNonvoid(InstancePtr != NULL);
Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
/*
* Reset the QSPI device to leave it in a known good state
*/
XQspiPs_Reset(InstancePtr);
/*
* All the QSPI registers should be in their default state right now.
*/
Register = XQspiPs_ReadReg(InstancePtr->Config.BaseAddress,
XQSPIPS_CR_OFFSET);
if (Register != XQSPIPS_CR_RESET_STATE) {
return XST_REGISTER_ERROR;
}
Register = XQspiPs_ReadReg(InstancePtr->Config.BaseAddress,
XQSPIPS_SR_OFFSET);
if (Register != XQSPIPS_ISR_RESET_STATE) {
return XST_REGISTER_ERROR;
}
DelayTestNss = 0x5A;
DelayTestBtwn = 0xA5;
DelayTestAfter = 0xAA;
DelayTestInit = 0x55;
/*
* Write and read the delay register, just to be sure there is some
* hardware out there.
*/
Status = XQspiPs_SetDelays(InstancePtr, DelayTestNss, DelayTestBtwn,
DelayTestAfter, DelayTestInit);
if (Status != XST_SUCCESS) {
return Status;
}
XQspiPs_GetDelays(InstancePtr, &DelayTestNss, &DelayTestBtwn,
&DelayTestAfter, &DelayTestInit);
if ((0x5A != DelayTestNss) || (0xA5 != DelayTestBtwn) ||
(0xAA != DelayTestAfter) || (0x55 != DelayTestInit)) {
return XST_REGISTER_ERROR;
}
Status = XQspiPs_SetDelays(InstancePtr, 0, 0, 0, 0);
if (Status != XST_SUCCESS) {
return Status;
}
/*
* Reset the QSPI device to leave it in a known good state
*/
XQspiPs_Reset(InstancePtr);
return XST_SUCCESS;
}