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32 /*****************************************************************************/
35 * @file xqspips_selftest.c
36 * @addtogroup qspips_v3_0
39 * This file contains the implementation of selftest function for the QSPI
43 * MODIFICATION HISTORY:
45 * Ver Who Date Changes
46 * ----- --- -------- -----------------------------------------------
47 * 1.00 sdm 11/25/10 First release
48 * 2.01a sg 02/03/13 Delay Register test is added with DelayNss parameter.
52 ******************************************************************************/
54 /***************************** Include Files *********************************/
58 /************************** Constant Definitions *****************************/
60 /**************************** Type Definitions *******************************/
62 /***************** Macros (Inline Functions) Definitions *********************/
64 /************************** Function Prototypes ******************************/
66 /************************** Variable Definitions *****************************/
68 /*****************************************************************************/
71 * Runs a self-test on the driver/device. The self-test is destructive in that
72 * a reset of the device is performed in order to check the reset values of
73 * the registers and to get the device into a known state.
75 * Upon successful return from the self-test, the device is reset.
77 * @param InstancePtr is a pointer to the XQspiPs instance.
80 * - XST_SUCCESS if successful
81 * - XST_REGISTER_ERROR indicates a register did not read or write
86 ******************************************************************************/
87 int XQspiPs_SelfTest(XQspiPs *InstancePtr)
96 Xil_AssertNonvoid(InstancePtr != NULL);
97 Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
100 * Reset the QSPI device to leave it in a known good state
102 XQspiPs_Reset(InstancePtr);
105 * All the QSPI registers should be in their default state right now.
107 Register = XQspiPs_ReadReg(InstancePtr->Config.BaseAddress,
109 if (Register != XQSPIPS_CR_RESET_STATE) {
110 return XST_REGISTER_ERROR;
113 Register = XQspiPs_ReadReg(InstancePtr->Config.BaseAddress,
115 if (Register != XQSPIPS_ISR_RESET_STATE) {
116 return XST_REGISTER_ERROR;
120 DelayTestBtwn = 0xA5;
121 DelayTestAfter = 0xAA;
122 DelayTestInit = 0x55;
125 * Write and read the delay register, just to be sure there is some
126 * hardware out there.
128 Status = XQspiPs_SetDelays(InstancePtr, DelayTestNss, DelayTestBtwn,
129 DelayTestAfter, DelayTestInit);
130 if (Status != XST_SUCCESS) {
134 XQspiPs_GetDelays(InstancePtr, &DelayTestNss, &DelayTestBtwn,
135 &DelayTestAfter, &DelayTestInit);
136 if ((0x5A != DelayTestNss) || (0xA5 != DelayTestBtwn) ||
137 (0xAA != DelayTestAfter) || (0x55 != DelayTestInit)) {
138 return XST_REGISTER_ERROR;
141 Status = XQspiPs_SetDelays(InstancePtr, 0, 0, 0, 0);
142 if (Status != XST_SUCCESS) {
147 * Reset the QSPI device to leave it in a known good state
149 XQspiPs_Reset(InstancePtr);