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41 /****************************************************************************/
44 * @file xdevcfg_selftest.c
46 * Contains diagnostic self-test functions for the XDcfg driver.
49 * MODIFICATION HISTORY:
51 * Ver Who Date Changes
52 * ----- --- -------- ---------------------------------------------
53 * 1.00a hvm 02/07/11 First release
54 * 2.02a nm 02/27/13 Fixed CR# 701348.
55 * Peripheral test fails with Running
56 * DcfgSelfTestExample() in SECURE bootmode.
59 ******************************************************************************/
61 /***************************** Include Files *********************************/
65 /************************** Constant Definitions *****************************/
67 /**************************** Type Definitions *******************************/
69 /***************** Macros (Inline Functions) Definitions *********************/
71 /************************** Function Prototypes ******************************/
73 /************************** Variable Definitions *****************************/
75 /****************************************************************************/
78 * Run a self-test on the Device Configuration Interface. This test does a
79 * control register write and reads back the same value.
81 * @param InstancePtr is a pointer to the XDcfg instance.
84 * - XST_SUCCESS if self-test was successful.
85 * - XST_FAILURE if fails.
89 ******************************************************************************/
90 int XDcfg_SelfTest(XDcfg *InstancePtr)
94 int Status = XST_SUCCESS;
97 * Assert to ensure the inputs are valid and the instance has been
100 Xil_AssertNonvoid(InstancePtr != NULL);
101 Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
103 OldCfgReg = XDcfg_GetControlRegister(InstancePtr);
105 XDcfg_SetControlRegister(InstancePtr, XDCFG_CTRL_NIDEN_MASK);
107 CfgReg = XDcfg_GetControlRegister(InstancePtr);
109 if ((CfgReg & XDCFG_CTRL_NIDEN_MASK) != XDCFG_CTRL_NIDEN_MASK) {
111 Status = XST_FAILURE;
115 * Restore the original values of the register
117 XDcfg_SetControlRegister(InstancePtr, OldCfgReg);