/******************************************************************************
*
-* (c) Copyright 2010-14 Xilinx, Inc. All rights reserved.
-*
-* This file contains confidential and proprietary information of Xilinx, Inc.
-* and is protected under U.S. and international copyright and other
-* intellectual property laws.
-*
-* DISCLAIMER
-* This disclaimer is not a license and does not grant any rights to the
-* materials distributed herewith. Except as otherwise provided in a valid
-* license issued to you by Xilinx, and to the maximum extent permitted by
-* applicable law: (1) THESE MATERIALS ARE MADE AVAILABLE "AS IS" AND WITH ALL
-* FAULTS, AND XILINX HEREBY DISCLAIMS ALL WARRANTIES AND CONDITIONS, EXPRESS,
-* IMPLIED, OR STATUTORY, INCLUDING BUT NOT LIMITED TO WARRANTIES OF
-* MERCHANTABILITY, NON-INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE;
-* and (2) Xilinx shall not be liable (whether in contract or tort, including
-* negligence, or under any other theory of liability) for any loss or damage
-* of any kind or nature related to, arising under or in connection with these
-* materials, including for any direct, or any indirect, special, incidental,
-* or consequential loss or damage (including loss of data, profits, goodwill,
-* or any type of loss or damage suffered as a result of any action brought by
-* a third party) even if such damage or loss was reasonably foreseeable or
-* Xilinx had been advised of the possibility of the same.
-*
-* CRITICAL APPLICATIONS
-* Xilinx products are not designed or intended to be fail-safe, or for use in
-* any application requiring fail-safe performance, such as life-support or
-* safety devices or systems, Class III medical devices, nuclear facilities,
-* applications related to the deployment of airbags, or any other applications
-* that could lead to death, personal injury, or severe property or
-* environmental damage (individually and collectively, "Critical
-* Applications"). Customer assumes the sole risk and liability of any use of
-* Xilinx products in Critical Applications, subject only to applicable laws
-* and regulations governing limitations on product liability.
-*
-* THIS COPYRIGHT NOTICE AND DISCLAIMER MUST BE RETAINED AS PART OF THIS FILE
-* AT ALL TIMES.
+* Copyright (C) 2013 - 2014 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,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+* XILINX BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+* SOFTWARE.
+*
+* Except as contained in this notice, the name of the Xilinx shall not be used
+* in advertising or otherwise to promote the sale, use or other dealings in
+* this Software without prior written authorization from Xilinx.
*
******************************************************************************/
/*****************************************************************************/
/************************** Variable Definitions *****************************/
/*****************************************************************************/
/**
-* This function perform the reset sequence to the given I2c interface by
+* This function perform the reset sequence to the given I2c interface by
* configuring the appropriate control bits in the I2c specifc registers
* the i2cps reset squence involves the following steps
-* Disable all the interuupts
+* Disable all the interuupts
* Clear the status
* Clear FIFO's and disable hold bit
* Clear the line status
*
* @return N/A
*
-* @note
-* This function will not modify the slcr registers that are relavant for
+* @note
+* This function will not modify the slcr registers that are relavant for
* I2c controller
******************************************************************************/
void XIicPs_ResetHw(u32 BaseAddress)
{
u32 RegVal;
-
+
/* Disable all the interrupts */
XIicPs_WriteReg(BaseAddress, XIICPS_IDR_OFFSET, XIICPS_IXR_ALL_INTR_MASK);
- /* Clear the interrupt status */
+ /* Clear the interrupt status */
RegVal = XIicPs_ReadReg(BaseAddress,XIICPS_ISR_OFFSET);
- XIicPs_WriteReg(BaseAddress, XIICPS_ISR_OFFSET, RegVal);
- /* Clear the hold bit,master enable bit and ack bit */
+ XIicPs_WriteReg(BaseAddress, XIICPS_ISR_OFFSET, RegVal);
+ /* Clear the hold bit,master enable bit and ack bit */
RegVal = XIicPs_ReadReg(BaseAddress,XIICPS_CR_OFFSET);
RegVal &= ~(XIICPS_CR_HOLD_MASK|XIICPS_CR_MS_MASK|XIICPS_CR_ACKEN_MASK);
- /* Clear the fifos */
- RegVal |= XIICPS_CR_CLR_FIFO_MASK;
- XIicPs_WriteReg(BaseAddress, XIICPS_CR_OFFSET, RegVal);
+ /* Clear the fifos */
+ RegVal |= XIICPS_CR_CLR_FIFO_MASK;
+ XIicPs_WriteReg(BaseAddress, XIICPS_CR_OFFSET, RegVal);
/* Clear the timeout register */
- XIicPs_WriteReg(BaseAddress, XIICPS_TIME_OUT_OFFSET, 0x0);
- /* Clear the transfer size register */
+ XIicPs_WriteReg(BaseAddress, XIICPS_TIME_OUT_OFFSET, 0x0);
+ /* Clear the transfer size register */
XIicPs_WriteReg(BaseAddress, XIICPS_TRANS_SIZE_OFFSET, 0x0);
- /* Clear the status register */
+ /* Clear the status register */
RegVal = XIicPs_ReadReg(BaseAddress,XIICPS_SR_OFFSET);
- XIicPs_WriteReg(BaseAddress, XIICPS_SR_OFFSET, RegVal);
- /* Update the configuraqtion register with reset value */
- XIicPs_WriteReg(BaseAddress, XIICPS_CR_OFFSET, 0x0);
+ XIicPs_WriteReg(BaseAddress, XIICPS_SR_OFFSET, RegVal);
+ /* Update the configuraqtion register with reset value */
+ XIicPs_WriteReg(BaseAddress, XIICPS_CR_OFFSET, 0x0);
}
projects / freertos / blobdiff