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drivers: platform: add AXI IO implementation
Add read/write wrapper function implementation for Altera/Xilinx platforms. Signed-off-by: Antoniu Miclaus <[email protected]>
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| /***************************************************************************//** | ||
| * @file axi_io.c | ||
| * @brief Implementation of Altera AXI IO . | ||
| * @author Antoniu Miclaus ([email protected]) | ||
| ******************************************************************************** | ||
| * Copyright 2019(c) Analog Devices, Inc. | ||
| * | ||
| * All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions are met: | ||
| * - Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * - Redistributions in binary form must reproduce the above copyright | ||
| * notice, this list of conditions and the following disclaimer in | ||
| * the documentation and/or other materials provided with the | ||
| * distribution. | ||
| * - Neither the name of Analog Devices, Inc. nor the names of its | ||
| * contributors may be used to endorse or promote products derived | ||
| * from this software without specific prior written permission. | ||
| * - The use of this software may or may not infringe the patent rights | ||
| * of one or more patent holders. This license does not release you | ||
| * from the requirement that you obtain separate licenses from these | ||
| * patent holders to use this software. | ||
| * - Use of the software either in source or binary form, must be run | ||
| * on or directly connected to an Analog Devices Inc. component. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR | ||
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, | ||
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | ||
| * IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
| * LIMITED TO, INTELLECTUAL PROPERTY RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | ||
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| *******************************************************************************/ | ||
|
|
||
| /******************************************************************************/ | ||
| /***************************** Include Files **********************************/ | ||
| /******************************************************************************/ | ||
|
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| #include <io.h> | ||
| #include "error.h" | ||
| #include "axi_io.h" | ||
|
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| /******************************************************************************/ | ||
| /************************ Functions Definitions *******************************/ | ||
| /******************************************************************************/ | ||
|
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||
| /** | ||
| * @brief AXI IO Altera specific read function. | ||
| * @param base - Base address | ||
| * @param offset - Address offset | ||
| * @param data - variable where returned data is stored | ||
| * @return SUCCESS in case of success, FAILURE otherwise. | ||
| */ | ||
| int32_t axi_io_read(uint32_t base, uint32_t offset, uint32_t *data) | ||
| { | ||
| *data = IORD_32DIRECT(base, offset); | ||
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| return SUCCESS; | ||
| } | ||
|
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| /** | ||
| * @brief AXI IO Altera specific write function. | ||
| * @param base - Base address | ||
| * @param offset - Address offset | ||
| * @param data - data to be written | ||
| * @return SUCCESS in case of success, FAILURE otherwise. | ||
| */ | ||
| int32_t axi_io_write(uint32_t base, uint32_t offset, uint32_t data) | ||
| { | ||
| IOWR_32DIRECT(base, offset, data); | ||
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| return SUCCESS; | ||
| } | ||
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| Original file line number | Diff line number | Diff line change |
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| /***************************************************************************//** | ||
| * @file axi_io.c | ||
| * @brief Implementation of Xilinx AXI IO. | ||
| * @author Antoniu Miclaus ([email protected]) | ||
| ******************************************************************************** | ||
| * Copyright 2019(c) Analog Devices, Inc. | ||
| * | ||
| * All rights reserved. | ||
| * | ||
| * Redistribution and use in source and binary forms, with or without | ||
| * modification, are permitted provided that the following conditions are met: | ||
| * - Redistributions of source code must retain the above copyright | ||
| * notice, this list of conditions and the following disclaimer. | ||
| * - Redistributions in binary form must reproduce the above copyright | ||
| * notice, this list of conditions and the following disclaimer in | ||
| * the documentation and/or other materials provided with the | ||
| * distribution. | ||
| * - Neither the name of Analog Devices, Inc. nor the names of its | ||
| * contributors may be used to endorse or promote products derived | ||
| * from this software without specific prior written permission. | ||
| * - The use of this software may or may not infringe the patent rights | ||
| * of one or more patent holders. This license does not release you | ||
| * from the requirement that you obtain separate licenses from these | ||
| * patent holders to use this software. | ||
| * - Use of the software either in source or binary form, must be run | ||
| * on or directly connected to an Analog Devices Inc. component. | ||
| * | ||
| * THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES "AS IS" AND ANY EXPRESS OR | ||
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, NON-INFRINGEMENT, | ||
| * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | ||
| * IN NO EVENT SHALL ANALOG DEVICES BE LIABLE FOR ANY DIRECT, INDIRECT, | ||
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | ||
| * LIMITED TO, INTELLECTUAL PROPERTY RIGHTS, PROCUREMENT OF SUBSTITUTE GOODS OR | ||
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER | ||
| * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, | ||
| * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | ||
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| *******************************************************************************/ | ||
|
|
||
| /******************************************************************************/ | ||
| /***************************** Include Files **********************************/ | ||
| /******************************************************************************/ | ||
|
|
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| #include <xil_io.h> | ||
| #include "error.h" | ||
| #include "axi_io.h" | ||
|
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||
| /******************************************************************************/ | ||
| /************************ Functions Definitions *******************************/ | ||
| /******************************************************************************/ | ||
|
|
||
| /** | ||
| * @brief AXI IO Xilinx specific read function. | ||
| * @param base - Base address | ||
| * @param offset - Address offset | ||
| * @param data - variable where returned data is stored | ||
| * @return SUCCESS in case of success, FAILURE otherwise. | ||
| */ | ||
| int32_t axi_io_read(uint32_t base, uint32_t offset, uint32_t *data) | ||
| { | ||
| *data = Xil_In32(base + offset); | ||
|
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| return SUCCESS; | ||
| } | ||
|
|
||
| /** | ||
| * @brief AXI IO Xilinx specific write function. | ||
| * @param base - Base address | ||
| * @param offset - Address offset | ||
| * @param data - data to be written. | ||
| * @return SUCCESS in case of success, FAILURE otherwise. | ||
| */ | ||
| int32_t axi_io_write(uint32_t base, uint32_t offset, uint32_t data) | ||
| { | ||
| Xil_Out32(base + offset, data); | ||
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| return SUCCESS; | ||
| } | ||
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