diff options
Diffstat (limited to 'platform/drivers/src/rdc.c')
-rw-r--r-- | platform/drivers/src/rdc.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/platform/drivers/src/rdc.c b/platform/drivers/src/rdc.c new file mode 100644 index 0000000..30cba44 --- /dev/null +++ b/platform/drivers/src/rdc.c @@ -0,0 +1,89 @@ +/* + * 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 + ******************************************************************************/ |