| /****************************************************************************** |
| * |
| * Copyright (C) 2010 - 2015 Xilinx, Inc. All rights reserved. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a copy |
| * of this software and associated documentation files (the "Software"), to deal |
| * in the Software without restriction, including without limitation the rights |
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
| * 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: |
| * (a) running on a Xilinx device, or |
| * (b) that interact with a Xilinx device through a bus or interconnect. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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| * SOFTWARE. |
| * |
| * Except as contained in this notice, the name of the Xilinx shall not be used |
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| * this Software without prior written authorization from Xilinx. |
| * |
| ******************************************************************************/ |
| |
| /** |
| * @file xbram.c |
| * @addtogroup bram_v4_0 |
| * @{ |
| * |
| * The implementation of the XBram driver's basic functionality. |
| * See xbram.h for more information about the driver. |
| * |
| * @note |
| * |
| * None |
| * |
| * <pre> |
| * MODIFICATION HISTORY: |
| * |
| * Ver Who Date Changes |
| * ----- ---- -------- ----------------------------------------------- |
| * 1.00a sa 05/11/10 First release |
| * 3.01a sa 13/01/12 Added CorrectableFailingDataRegs and |
| * UncorrectableFailingDataRegs in |
| * XBram_CfgInitialize API. |
| * 4.1 sk 11/10/15 Used UINTPTR instead of u32 for Baseaddress CR# 867425. |
| * Changed the prototype of XBram_CfgInitialize API. |
| *</pre> |
| * |
| *****************************************************************************/ |
| |
| /***************************** Include Files ********************************/ |
| |
| #include "xbram.h" |
| #include "xstatus.h" |
| |
| /************************** Constant Definitions ****************************/ |
| |
| /**************************** Type Definitions ******************************/ |
| |
| /***************** Macros (Inline Functions) Definitions ********************/ |
| |
| /************************** Variable Definitions ****************************/ |
| |
| |
| /************************** Function Prototypes *****************************/ |
| |
| |
| /****************************************************************************/ |
| /** |
| * Initialize the XBram instance provided by the caller based on the given |
| * configuration data. |
| * |
| * Nothing is done except to initialize the InstancePtr. |
| * |
| * @param InstancePtr is a pointer to an XBram instance. |
| * The memory the pointer references must be pre-allocated by |
| * the caller. Further calls to manipulate the driver through |
| * the XBram API must be made with this pointer. |
| * @param Config is a reference to a structure containing information |
| * about a specific BRAM device. This function |
| * initializes an InstancePtr object for a specific device |
| * specified by the contents of Config. This function can |
| * initialize multiple instance objects with the use of multiple |
| * calls giving different Config information on each call. |
| * @param EffectiveAddr is the device base address in the virtual memory |
| * address space. The caller is responsible for keeping the |
| * address mapping from EffectiveAddr to the device physical base |
| * address unchanged once this function is invoked. Unexpected |
| * errors may occur if the address mapping changes after this |
| * function is called. If address translation is not used, use |
| * Config->BaseAddress for this parameters, passing the physical |
| * address instead. |
| * |
| * @return |
| * - XST_SUCCESS Initialization was successful. |
| * |
| * @note None. |
| * |
| *****************************************************************************/ |
| int XBram_CfgInitialize(XBram *InstancePtr, |
| XBram_Config *Config, |
| UINTPTR EffectiveAddr) |
| { |
| /* |
| * Assert arguments |
| */ |
| Xil_AssertNonvoid(InstancePtr != NULL); |
| |
| /* |
| * Set some default values. |
| */ |
| InstancePtr->Config.CtrlBaseAddress = EffectiveAddr; |
| InstancePtr->Config.MemBaseAddress = Config->MemBaseAddress; |
| InstancePtr->Config.MemHighAddress = Config->MemHighAddress; |
| InstancePtr->Config.DataWidth = Config->DataWidth; |
| InstancePtr->Config.EccPresent = Config->EccPresent; |
| InstancePtr->Config.FaultInjectionPresent = |
| Config->FaultInjectionPresent; |
| InstancePtr->Config.CorrectableFailingRegisters = |
| Config->CorrectableFailingRegisters; |
| InstancePtr->Config.CorrectableFailingDataRegs = |
| Config->CorrectableFailingDataRegs; |
| InstancePtr->Config.UncorrectableFailingRegisters = |
| Config->UncorrectableFailingRegisters; |
| InstancePtr->Config.UncorrectableFailingDataRegs = |
| Config->UncorrectableFailingDataRegs; |
| InstancePtr->Config.EccStatusInterruptPresent = |
| Config->EccStatusInterruptPresent; |
| InstancePtr->Config.CorrectableCounterBits = |
| Config->CorrectableCounterBits; |
| InstancePtr->Config.WriteAccess = Config->WriteAccess; |
| |
| /* |
| * Indicate the instance is now ready to use, initialized without error |
| */ |
| InstancePtr->IsReady = XIL_COMPONENT_IS_READY; |
| return (XST_SUCCESS); |
| } |
| |
| /** @} */ |