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32 /*****************************************************************************/
35 * @file xqspips_selftest.c
37 * This file contains the implementation of selftest function for the QSPI
41 * MODIFICATION HISTORY:
43 * Ver Who Date Changes
44 * ----- --- -------- -----------------------------------------------
45 * 1.00 sdm 11/25/10 First release
46 * 2.01a sg 02/03/13 Delay Register test is added with DelayNss parameter.
50 ******************************************************************************/
52 /***************************** Include Files *********************************/
56 /************************** Constant Definitions *****************************/
58 /**************************** Type Definitions *******************************/
60 /***************** Macros (Inline Functions) Definitions *********************/
62 /************************** Function Prototypes ******************************/
64 /************************** Variable Definitions *****************************/
66 /*****************************************************************************/
69 * Runs a self-test on the driver/device. The self-test is destructive in that
70 * a reset of the device is performed in order to check the reset values of
71 * the registers and to get the device into a known state.
73 * Upon successful return from the self-test, the device is reset.
75 * @param InstancePtr is a pointer to the XQspiPs instance.
78 * - XST_SUCCESS if successful
79 * - XST_REGISTER_ERROR indicates a register did not read or write
84 ******************************************************************************/
85 int XQspiPs_SelfTest(XQspiPs *InstancePtr)
94 Xil_AssertNonvoid(InstancePtr != NULL);
95 Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
98 * Reset the QSPI device to leave it in a known good state
100 XQspiPs_Reset(InstancePtr);
103 * All the QSPI registers should be in their default state right now.
105 Register = XQspiPs_ReadReg(InstancePtr->Config.BaseAddress,
107 if (Register != XQSPIPS_CR_RESET_STATE) {
108 return XST_REGISTER_ERROR;
111 Register = XQspiPs_ReadReg(InstancePtr->Config.BaseAddress,
113 if (Register != XQSPIPS_ISR_RESET_STATE) {
114 return XST_REGISTER_ERROR;
118 DelayTestBtwn = 0xA5;
119 DelayTestAfter = 0xAA;
120 DelayTestInit = 0x55;
123 * Write and read the delay register, just to be sure there is some
124 * hardware out there.
126 Status = XQspiPs_SetDelays(InstancePtr, DelayTestNss, DelayTestBtwn,
127 DelayTestAfter, DelayTestInit);
128 if (Status != XST_SUCCESS) {
132 XQspiPs_GetDelays(InstancePtr, &DelayTestNss, &DelayTestBtwn,
133 &DelayTestAfter, &DelayTestInit);
134 if ((0x5A != DelayTestNss) || (0xA5 != DelayTestBtwn) ||
135 (0xAA != DelayTestAfter) || (0x55 != DelayTestInit)) {
136 return XST_REGISTER_ERROR;
139 Status = XQspiPs_SetDelays(InstancePtr, 0, 0, 0, 0);
140 if (Status != XST_SUCCESS) {
145 * Reset the QSPI device to leave it in a known good state
147 XQspiPs_Reset(InstancePtr);