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-rw-r--r--platform/drivers/src/rdc.c89
1 files changed, 89 insertions, 0 deletions
diff --git a/platform/drivers/src/rdc.c b/platform/drivers/src/rdc.c
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+++ b/platform/drivers/src/rdc.c
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+/*
+ * Copyright (c) 2015, Freescale Semiconductor, 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:
+ *
+ * o Redistributions of source code must retain the above copyright notice, this list
+ * of conditions and the following disclaimer.
+ *
+ * o 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.
+ *
+ * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from this
+ * software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, 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 "rdc.h"
+
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+
+/*FUNCTION**********************************************************************
+ *
+ * Function Name : RDC_SetMrAccess
+ * Description : Set RDC memory region access permission for RDC domains
+ *
+ *END**************************************************************************/
+void RDC_SetMrAccess(RDC_Type * base, uint32_t mr, uint32_t startAddr, uint32_t endAddr,
+ uint8_t perm, bool enable, bool lock)
+{
+ base->MR[mr].MRSA = startAddr;
+ base->MR[mr].MREA = endAddr;
+ base->MR[mr].MRC = perm | (enable ? RDC_MRC_ENA_MASK : 0) | (lock ? RDC_MRC_LCK_MASK : 0);
+}
+
+/*FUNCTION**********************************************************************
+ *
+ * Function Name : RDC_GetMrAccess
+ * Description : Get RDC memory region access permission for RDC domains
+ *
+ *END**************************************************************************/
+uint8_t RDC_GetMrAccess(RDC_Type * base, uint32_t mr, uint32_t *startAddr, uint32_t *endAddr)
+{
+ if (startAddr)
+ *startAddr = base->MR[mr].MRSA;
+ if (endAddr)
+ *endAddr = base->MR[mr].MREA;
+
+ return base->MR[mr].MRC & 0xFF;
+}
+
+/*FUNCTION**********************************************************************
+ *
+ * Function Name : RDC_GetViolationStatus
+ * Description : Get RDC memory violation status
+ *
+ *END**************************************************************************/
+bool RDC_GetViolationStatus(RDC_Type * base, uint32_t mr, uint32_t *violationAddr, uint32_t *violationDomain)
+{
+ uint32_t mrvs;
+
+ mrvs = base->MR[mr].MRVS;
+
+ if (violationAddr)
+ *violationAddr = mrvs & RDC_MRVS_VADR_MASK;
+ if (violationDomain)
+ *violationDomain = (mrvs & RDC_MRVS_VDID_MASK) >> RDC_MRVS_VDID_SHIFT;
+
+ return (bool)(mrvs & RDC_MRVS_AD_MASK);
+}
+
+/*******************************************************************************
+ * EOF
+ ******************************************************************************/