2c8f92039d
Added initial support Xilinx Embedded Software. Signed-off-by: Jagannadha Sutradharudu Teki <jaganna@xilinx.com>
69 lines
4.5 KiB
HTML
Executable file
69 lines
4.5 KiB
HTML
Executable file
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<meta http-equiv="Content-Type" content="text/html;charset=iso-8859-1">
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axipcie v3_0
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<link href="$DriverApiDocsCssPath" rel="stylesheet" type="text/css">
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<h3 class="PageHeader">Xilinx Processor IP Library</h3>
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<hl>Software Drivers</hl>
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<!-- Generated by Doxygen 1.4.5 -->
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<li id="current"><a href="index.html"><span>Main Page</span></a></li>
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</ul></div>
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<h1>axipcie v3_0</h1>
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<p>
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This file contains the software API definition of the Xilinx AXI PCIe IP (<a class="el" href="struct_x_axi_pcie.html">XAxiPcie</a>). This driver provides "C" function interface to application/upper layer to access the hardware.<p>
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<b>Features</b> The driver provides its user with entry points<ul>
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<li>To initialize and configure itself and the hardware</li><li>To access PCIe configuration space locally</li><li>To enable/disable and to report errors (interrupts).</li></ul>
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<p>
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<b>IP Hardware Configuration</b> The AXI PCIE IP supports only the endpoint for Virtex®-6 and Spartan®-6 families.<p>
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The AXI PCIE IP supports both the endpoint and Root Port for the Kintex® 7 devices.<p>
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<b>Driver Initialization & Configuration</b><p>
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The <a class="el" href="struct_x_axi_pcie___config.html">XAxiPcie_Config</a> structure is used by the driver to configure itself. This configuration structure is typically created by the tool-chain based on HW build properties.<p>
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To support multiple runtime loading and initialization strategies employed by various operating systems, the driver instance can be initialized in the following way:<p>
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<ul>
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<li>XAxiPcie_LookupConfig(DeviceId) - Use the device identifier to find the static configuration structure defined in <a class="el" href="xaxipcie__g_8c.html">xaxipcie_g.c</a>. This is setup by the tools. For some operating systems the config structure will be initialized by the software and this call is not needed.</li></ul>
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<p>
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<ul>
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<li>XAxiPcie_CfgInitialize(InstancePtr, CfgPtr, EffectiveAddr) - Uses a configuration structure provided by the caller. If running in a system with address translation, the provided virtual memory base address replaces the physical address present in the configuration structure.</li></ul>
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<p>
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<b>Interrupt Management</b><p>
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The <a class="el" href="struct_x_axi_pcie.html">XAxiPcie</a> driver provides interrupt management functions. It allows the caller to enable/disable each individual interrupt as well as get/clear pending interrupts. Implementation of callback handlers is left to the user.<p>
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<dl compact><dt><b>Note:</b></dt><dd></dd></dl>
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<pre>
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MODIFICATION HISTORY:</pre><p>
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<pre> Ver Who Date Changes
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----- ---- -------- ------------------------------------------------------
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1.00a rkv 03/03/11 Original code.
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2.00a nm 10/19/11 Added support of pcie root complex functionality.
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Changed these functions
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-renamed function XAxiPcie_GetRequestId to
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XAxiPcie_GetRequesterId
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-added two functions arguments RootPortPtr &
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ECAMSizePtr to XAxiPcie_GetBridgeInfo API
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Added these new API for root complex support<ul>
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<li>XAxiPcie_GetRootPortStatusCtrl</li><li>XAxiPcie_SetRootPortStatusCtrl</li><li>XAxiPcie_SetRootPortMSIBase</li><li>XAxiPcie_GetRootPortErrFIFOMsg</li><li>XAxiPcie_ClearRootPortErrFIFOMsg</li><li>XAxiPcie_GetRootPortIntFIFOReg</li><li>XAxiPcie_ClearRootPortIntFIFOReg</li><li>XAxiPcie_WriteLocalConfigSpace</li><li>XAxiPcie_ComposeExternalConfigAddress</li><li>XAxiPcie_ReadRemoteConfigSpace</li><li>XAxiPcie_WriteRemoteConfigSpace</li></ul>
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</pre><p>
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<pre> 2.01a nm 04/01/12 Removed XAxiPcie_SetRequesterId and
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XAxiPcie_SetBlPortNumber APIs as these are writing
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to Read Only bits for CR638299.
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2.02a nm 08/01/12 Updated for removing compilation errors with C++,
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changed XCOMPONENT_IS_READY to XIL_COMPONENT_IS_READY
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Removed the Endian Swap in
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XAxiPcie_ReadRemoteConfigSpace and
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XAxiPcie_WriteRemoteConfigSpace APIs as the HW
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has been fixed and the swapping is not required
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in the driver (CR 657412)
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2.03a srt 04/13/13 Removed Warnings (CR 705004).
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2.04a srt 09/06/13 Fixed CR 734175:
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C_BASEADDR and C_HIGHADDR configuration parameters are
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renamed to BASEADDR and HIGHADDR in Vivado builds.
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Modified the tcl for this change.
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3.0 adk 19/12/13 Updated as per the New Tcl API's</pre><p>
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<pre> </pre> Copyright @ 1995-2014 Xilinx, Inc. All rights reserved.
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