ChibiOS 2.6.8, until I can figure out where to get it from git.

firmware/chibios/os/hal/platforms/MSP430/hal_lld.c

@@ -0,0 +1,72 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+
+        http://www.apache.org/licenses/LICENSE-2.0
+
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+*/
+
+/**
+ * @file    MSP430/hal_lld.c
+ * @brief   MSP430 HAL subsystem low level driver source.
+ *
+ * @addtogroup HAL
+ * @{
+ */
+
+#include "ch.h"
+#include "hal.h"
+
+/*===========================================================================*/
+/* Driver exported variables.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local variables and types.                                         */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver local functions.                                                   */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver interrupt handlers.                                                */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver exported functions.                                                */
+/*===========================================================================*/
+
+/**
+ * @brief   Low level HAL driver initialization.
+ *
+ * @notapi
+ */
+void hal_lld_init(void) {
+
+  /* RTC initially stopped.*/
+  WDTCTL = 0x5A80;
+
+  /* Clock sources setup.*/
+  DCOCTL  = VAL_DCOCTL;
+  BCSCTL1 = VAL_BCSCTL1;
+#if MSP430_USE_CLOCK == MSP430_CLOCK_SOURCE_XT2CLK
+  do {
+    int i;
+    IFG1 &= ~OFIFG;
+     for (i = 255; i > 0; i--)
+       asm("nop");
+  } while (IFG1 & OFIFG);
+#endif
+  BCSCTL2 = VAL_BCSCTL2;
+}
+
+/** @} */