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32 /*****************************************************************************/
35 * @file xqspips_selftest.c
36 * @addtogroup qspips_v3_4
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.
49 * 3.1 hk 06/19/14 Remove checks for CR and ISR register values as they are
50 * reset in the previous step.
54 ******************************************************************************/
56 /***************************** Include Files *********************************/
60 /************************** Constant Definitions *****************************/
62 /**************************** Type Definitions *******************************/
64 /***************** Macros (Inline Functions) Definitions *********************/
66 /************************** Function Prototypes ******************************/
68 /************************** Variable Definitions *****************************/
70 /*****************************************************************************/
73 * Runs a self-test on the driver/device. The self-test is destructive in that
74 * a reset of the device is performed in order to check the reset values of
75 * the registers and to get the device into a known state.
77 * Upon successful return from the self-test, the device is reset.
79 * @param InstancePtr is a pointer to the XQspiPs instance.
82 * - XST_SUCCESS if successful
83 * - XST_REGISTER_ERROR indicates a register did not read or write
88 ******************************************************************************/
89 int XQspiPs_SelfTest(XQspiPs *InstancePtr)
97 Xil_AssertNonvoid(InstancePtr != NULL);
98 Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
101 * Reset the QSPI device to leave it in a known good state
103 XQspiPs_Reset(InstancePtr);
106 DelayTestBtwn = 0xA5;
107 DelayTestAfter = 0xAA;
108 DelayTestInit = 0x55;
111 * Write and read the delay register, just to be sure there is some
112 * hardware out there.
114 Status = XQspiPs_SetDelays(InstancePtr, DelayTestNss, DelayTestBtwn,
115 DelayTestAfter, DelayTestInit);
116 if (Status != XST_SUCCESS) {
120 XQspiPs_GetDelays(InstancePtr, &DelayTestNss, &DelayTestBtwn,
121 &DelayTestAfter, &DelayTestInit);
122 if ((0x5A != DelayTestNss) || (0xA5 != DelayTestBtwn) ||
123 (0xAA != DelayTestAfter) || (0x55 != DelayTestInit)) {
124 return XST_REGISTER_ERROR;
127 Status = XQspiPs_SetDelays(InstancePtr, 0, 0, 0, 0);
128 if (Status != XST_SUCCESS) {
133 * Reset the QSPI device to leave it in a known good state
135 XQspiPs_Reset(InstancePtr);