1 files changed, 81 insertions, 0 deletions
diff --git a/platform/drivers/src/wdog_imx.c b/platform/drivers/src/wdog_imx.c
new file mode 100644
index 0000000..c8c62d2
--- /dev/null
+++ b/platform/drivers/src/wdog_imx.c
@@ -0,0 +1,81 @@
+/*
+ * 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 "wdog_imx.h"
+
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+
+/*FUNCTION**********************************************************************
+ *
+ * Function Name : WDOG_Enable
+ * Description   : Configure WDOG funtions, call once only
+ *
+ *END**************************************************************************/
+void WDOG_Enable(WDOG_Type *base, uint8_t timeout)
+{
+    uint16_t wcr = base->WCR & (~WDOG_WCR_WT_MASK);
+    base->WCR = wcr | WDOG_WCR_WT(timeout) | WDOG_WCR_WDE_MASK;
+}
+
+/*FUNCTION**********************************************************************
+ *
+ * Function Name : WDOG_Reset
+ * Description   : Assert WDOG reset signal
+ *
+ *END**************************************************************************/
+void WDOG_Reset(WDOG_Type *base, bool wda, bool srs)
+{
+    uint16_t wcr = base->WCR;
+
+    if (wda)
+        wcr &= ~WDOG_WCR_WDA_MASK;
+    if (srs)
+        wcr &= ~WDOG_WCR_SRS_MASK;
+
+    base->WCR = wcr;
+}
+
+/*FUNCTION**********************************************************************
+ *
+ * Function Name : WDOG_Refresh
+ * Description   : Refresh the WDOG to prevent timeout
+ *
+ *END**************************************************************************/
+void WDOG_Refresh(WDOG_Type *base)
+{
+    base->WSR = 0x5555;
+    base->WSR = 0xAAAA;
+}
+
+/*******************************************************************************
+ * EOF
+ ******************************************************************************/