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32 /****************************************************************************/
35 * @file xdevcfg_selftest.c
36 * @addtogroup devcfg_v3_1
39 * Contains diagnostic self-test functions for the XDcfg driver.
42 * MODIFICATION HISTORY:
44 * Ver Who Date Changes
45 * ----- --- -------- ---------------------------------------------
46 * 1.00a hvm 02/07/11 First release
47 * 2.02a nm 02/27/13 Fixed CR# 701348.
48 * Peripheral test fails with Running
49 * DcfgSelfTestExample() in SECURE bootmode.
52 ******************************************************************************/
54 /***************************** Include Files *********************************/
58 /************************** Constant Definitions *****************************/
60 /**************************** Type Definitions *******************************/
62 /***************** Macros (Inline Functions) Definitions *********************/
64 /************************** Function Prototypes ******************************/
66 /************************** Variable Definitions *****************************/
68 /****************************************************************************/
71 * Run a self-test on the Device Configuration Interface. This test does a
72 * control register write and reads back the same value.
74 * @param InstancePtr is a pointer to the XDcfg instance.
77 * - XST_SUCCESS if self-test was successful.
78 * - XST_FAILURE if fails.
82 ******************************************************************************/
83 int XDcfg_SelfTest(XDcfg *InstancePtr)
87 int Status = XST_SUCCESS;
90 * Assert to ensure the inputs are valid and the instance has been
93 Xil_AssertNonvoid(InstancePtr != NULL);
94 Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY);
96 OldCfgReg = XDcfg_GetControlRegister(InstancePtr);
98 XDcfg_SetControlRegister(InstancePtr, XDCFG_CTRL_NIDEN_MASK);
100 CfgReg = XDcfg_GetControlRegister(InstancePtr);
102 if ((CfgReg & XDCFG_CTRL_NIDEN_MASK) != XDCFG_CTRL_NIDEN_MASK) {
104 Status = XST_FAILURE;
108 * Restore the original values of the register
110 XDcfg_SetControlRegister(InstancePtr, OldCfgReg);