| /****************************************************************************** |
| * |
| * Copyright (C) 2010 - 2015 Xilinx, Inc. All rights reserved. |
| * |
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| * of this software and associated documentation files (the "Software"), to deal |
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| * copies of the Software, and to permit persons to whom the Software is |
| * furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * Use of the Software is limited solely to applications: |
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| * |
| ******************************************************************************/ |
| /*****************************************************************************/ |
| /** |
| * |
| * @file xqspips_selftest.c |
| * @addtogroup qspips_v3_2 |
| * @{ |
| * |
| * This file contains the implementation of selftest function for the QSPI |
| * device. |
| * |
| * <pre> |
| * MODIFICATION HISTORY: |
| * |
| * Ver Who Date Changes |
| * ----- --- -------- ----------------------------------------------- |
| * 1.00 sdm 11/25/10 First release |
| * 2.01a sg 02/03/13 Delay Register test is added with DelayNss parameter. |
| * 3.1 hk 06/19/14 Remove checks for CR and ISR register values as they are |
| * reset in the previous step. |
| * |
| * </pre> |
| * |
| ******************************************************************************/ |
| |
| /***************************** Include Files *********************************/ |
| |
| #include "xqspips.h" |
| |
| /************************** Constant Definitions *****************************/ |
| |
| /**************************** Type Definitions *******************************/ |
| |
| /***************** Macros (Inline Functions) Definitions *********************/ |
| |
| /************************** Function Prototypes ******************************/ |
| |
| /************************** Variable Definitions *****************************/ |
| |
| /*****************************************************************************/ |
| /** |
| * |
| * Runs a self-test on the driver/device. The self-test is destructive in that |
| * a reset of the device is performed in order to check the reset values of |
| * the registers and to get the device into a known state. |
| * |
| * Upon successful return from the self-test, the device is reset. |
| * |
| * @param InstancePtr is a pointer to the XQspiPs instance. |
| * |
| * @return |
| * - XST_SUCCESS if successful |
| * - XST_REGISTER_ERROR indicates a register did not read or write |
| * correctly. |
| * |
| * @note None. |
| * |
| ******************************************************************************/ |
| int XQspiPs_SelfTest(XQspiPs *InstancePtr) |
| { |
| int Status; |
| u8 DelayTestNss; |
| u8 DelayTestBtwn; |
| u8 DelayTestAfter; |
| u8 DelayTestInit; |
| |
| Xil_AssertNonvoid(InstancePtr != NULL); |
| Xil_AssertNonvoid(InstancePtr->IsReady == XIL_COMPONENT_IS_READY); |
| |
| /* |
| * Reset the QSPI device to leave it in a known good state |
| */ |
| XQspiPs_Reset(InstancePtr); |
| |
| DelayTestNss = 0x5A; |
| DelayTestBtwn = 0xA5; |
| DelayTestAfter = 0xAA; |
| DelayTestInit = 0x55; |
| |
| /* |
| * Write and read the delay register, just to be sure there is some |
| * hardware out there. |
| */ |
| Status = XQspiPs_SetDelays(InstancePtr, DelayTestNss, DelayTestBtwn, |
| DelayTestAfter, DelayTestInit); |
| if (Status != XST_SUCCESS) { |
| return Status; |
| } |
| |
| XQspiPs_GetDelays(InstancePtr, &DelayTestNss, &DelayTestBtwn, |
| &DelayTestAfter, &DelayTestInit); |
| if ((0x5A != DelayTestNss) || (0xA5 != DelayTestBtwn) || |
| (0xAA != DelayTestAfter) || (0x55 != DelayTestInit)) { |
| return XST_REGISTER_ERROR; |
| } |
| |
| Status = XQspiPs_SetDelays(InstancePtr, 0, 0, 0, 0); |
| if (Status != XST_SUCCESS) { |
| return Status; |
| } |
| |
| /* |
| * Reset the QSPI device to leave it in a known good state |
| */ |
| XQspiPs_Reset(InstancePtr); |
| |
| return XST_SUCCESS; |
| } |
| /** @} */ |