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32 /****************************************************************************/
35 * @file xdevcfg_selftest.c
37 * Contains diagnostic self-test functions for the XDcfg driver.
40 * MODIFICATION HISTORY:
42 * Ver Who Date Changes
43 * ----- --- -------- ---------------------------------------------
44 * 1.00a hvm 02/07/11 First release
45 * 2.02a nm 02/27/13 Fixed CR# 701348.
46 * Peripheral test fails with Running
47 * DcfgSelfTestExample() in SECURE bootmode.
50 ******************************************************************************/
52 /***************************** Include Files *********************************/
56 /************************** Constant Definitions *****************************/
58 /**************************** Type Definitions *******************************/
60 /***************** Macros (Inline Functions) Definitions *********************/
62 /************************** Function Prototypes ******************************/
64 /************************** Variable Definitions *****************************/
66 /****************************************************************************/
69 * Run a self-test on the Device Configuration Interface. This test does a
70 * control register write and reads back the same value.
72 * @param InstancePtr is a pointer to the XDcfg instance.
75 * - XST_SUCCESS if self-test was successful.
76 * - XST_FAILURE if fails.
80 ******************************************************************************/
81 int XDcfg_SelfTest(XDcfg *InstancePtr)
85 int Status = XST_SUCCESS;
88 * Assert to ensure the inputs are valid and the instance has been
91 Xil_AssertNonvoid(InstancePtr != NULL);
92 Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
94 OldCfgReg = XDcfg_GetControlRegister(InstancePtr);
96 XDcfg_SetControlRegister(InstancePtr, XDCFG_CTRL_NIDEN_MASK);
98 CfgReg = XDcfg_GetControlRegister(InstancePtr);
100 if ((CfgReg & XDCFG_CTRL_NIDEN_MASK) != XDCFG_CTRL_NIDEN_MASK) {
102 Status = XST_FAILURE;
106 * Restore the original values of the register
108 XDcfg_SetControlRegister(InstancePtr, OldCfgReg);