/** * * 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; }