1 files changed, 112 insertions, 0 deletions

diff --git a/lib/chibios-contrib/ext/mcux-sdk/devices/LPC845/drivers/fsl_reset.c b/lib/chibios-contrib/ext/mcux-sdk/devices/LPC845/drivers/fsl_reset.c
new file mode 100644
index 000000000..1b6cd56cf
--- /dev/null
+++ b/lib/chibios-contrib/ext/mcux-sdk/devices/LPC845/drivers/fsl_reset.c
@@ -0,0 +1,112 @@
+/*
+ * Copyright 2017, NXP
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include "fsl_common.h"
+#include "fsl_reset.h"
+
+/*******************************************************************************
+ * Definitions
+ ******************************************************************************/
+/* Component ID definition, used by tools. */
+#ifndef FSL_COMPONENT_ID
+#define FSL_COMPONENT_ID "platform.drivers.reset"
+#endif
+
+/*******************************************************************************
+ * Variables
+ ******************************************************************************/
+
+/*******************************************************************************
+ * Prototypes
+ ******************************************************************************/
+
+/*!
+* @brief Assert reset to peripheral.
+*
+* Asserts reset signal to specified peripheral module.
+*
+* @param peripheral Assert reset to this peripheral. The enum argument contains encoding of reset register
+*                   and reset bit position in the reset register.
+*/
+static void RESET_SetPeripheralReset(reset_ip_name_t peripheral);
+
+/*!
+ * @brief Clear reset to peripheral.
+ *
+ * Clears reset signal to specified peripheral module, allows it to operate.
+ *
+ * @param peripheral Clear reset to this peripheral. The enum argument contains encoding of reset register
+ *                   and reset bit position in the reset register.
+ */
+static void RESET_ClearPeripheralReset(reset_ip_name_t peripheral);
+
+/*******************************************************************************
+ * Code
+ ******************************************************************************/
+
+#if ((defined(FSL_FEATURE_SOC_SYSCON_COUNT) && (FSL_FEATURE_SOC_SYSCON_COUNT > 0)) || \
+     (defined(FSL_FEATURE_SOC_ASYNC_SYSCON_COUNT) && (FSL_FEATURE_SOC_ASYNC_SYSCON_COUNT > 0)))
+
+static void RESET_SetPeripheralReset(reset_ip_name_t peripheral)
+{
+    const uint32_t regIndex = ((uint32_t)peripheral & 0xFFFF0000u) >> 16;
+    const uint32_t bitPos = ((uint32_t)peripheral & 0x0000FFFFu);
+    const uint32_t bitMask = 1UL << bitPos;
+
+    assert(bitPos < 32UL);
+
+    /* reset register is in SYSCON */
+
+    if (0u == regIndex)
+    {
+        /* set bit */
+        SYSCON->PRESETCTRL0 &= ~bitMask;
+    }
+    if (1u == regIndex)
+    {
+        /* set bit */
+        SYSCON->PRESETCTRL1 &= ~bitMask;
+    }
+}
+
+static void RESET_ClearPeripheralReset(reset_ip_name_t peripheral)
+{
+    const uint32_t regIndex = ((uint32_t)peripheral & 0xFFFF0000u) >> 16;
+    const uint32_t bitPos = ((uint32_t)peripheral & 0x0000FFFFu);
+    const uint32_t bitMask = 1UL << bitPos;
+
+    assert(bitPos < 32UL);
+
+    /* reset register is in SYSCON */
+
+    if (0u == regIndex)
+    {
+        /* clear bit */
+        SYSCON->PRESETCTRL0 |= bitMask;
+    }
+    if (1u == regIndex)
+    {
+        /* clear bit */
+        SYSCON->PRESETCTRL1 |= bitMask;
+    }
+}
+
+/*!
+ * brief Reset peripheral module.
+ *
+ * Reset peripheral module.
+ *
+ * param peripheral Peripheral to reset. The enum argument contains encoding of reset register
+ *                   and reset bit position in the reset register.
+ */
+void RESET_PeripheralReset(reset_ip_name_t peripheral)
+{
+    RESET_SetPeripheralReset(peripheral);
+    RESET_ClearPeripheralReset(peripheral);
+}
+
+#endif /* FSL_FEATURE_SOC_SYSCON_COUNT || FSL_FEATURE_SOC_ASYNC_SYSCON_COUNT */