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44 * @file xqspips_selftest.c
46 * This file contains the implementation of selftest function for the QSPI
50 * MODIFICATION HISTORY:
52 * Ver Who Date Changes
53 * ----- --- -------- -----------------------------------------------
54 * 1.00 sdm 11/25/10 First release
55 * 2.01a sg 02/03/13 Delay Register test is added with DelayNss parameter.
59 ******************************************************************************/
61 /***************************** Include Files *********************************/
65 /************************** Constant Definitions *****************************/
67 /**************************** Type Definitions *******************************/
69 /***************** Macros (Inline Functions) Definitions *********************/
71 /************************** Function Prototypes ******************************/
73 /************************** Variable Definitions *****************************/
75 /*****************************************************************************/
78 * Runs a self-test on the driver/device. The self-test is destructive in that
79 * a reset of the device is performed in order to check the reset values of
80 * the registers and to get the device into a known state.
82 * Upon successful return from the self-test, the device is reset.
84 * @param InstancePtr is a pointer to the XQspiPs instance.
87 * - XST_SUCCESS if successful
88 * - XST_REGISTER_ERROR indicates a register did not read or write
93 ******************************************************************************/
94 int XQspiPs_SelfTest(XQspiPs *InstancePtr)
103 Xil_AssertNonvoid(InstancePtr != NULL);
104 Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
107 * Reset the QSPI device to leave it in a known good state
109 XQspiPs_Reset(InstancePtr);
112 * All the QSPI registers should be in their default state right now.
114 Register = XQspiPs_ReadReg(InstancePtr->Config.BaseAddress,
116 if (Register != XQSPIPS_CR_RESET_STATE) {
117 return XST_REGISTER_ERROR;
120 Register = XQspiPs_ReadReg(InstancePtr->Config.BaseAddress,
122 if (Register != XQSPIPS_ISR_RESET_STATE) {
123 return XST_REGISTER_ERROR;
127 DelayTestBtwn = 0xA5;
128 DelayTestAfter = 0xAA;
129 DelayTestInit = 0x55;
132 * Write and read the delay register, just to be sure there is some
133 * hardware out there.
135 Status = XQspiPs_SetDelays(InstancePtr, DelayTestNss, DelayTestBtwn,
136 DelayTestAfter, DelayTestInit);
137 if (Status != XST_SUCCESS) {
141 XQspiPs_GetDelays(InstancePtr, &DelayTestNss, &DelayTestBtwn,
142 &DelayTestAfter, &DelayTestInit);
143 if ((0x5A != DelayTestNss) || (0xA5 != DelayTestBtwn) ||
144 (0xAA != DelayTestAfter) || (0x55 != DelayTestInit)) {
145 return XST_REGISTER_ERROR;
148 Status = XQspiPs_SetDelays(InstancePtr, 0, 0, 0, 0);
149 if (Status != XST_SUCCESS) {
154 * Reset the QSPI device to leave it in a known good state
156 XQspiPs_Reset(InstancePtr);