1 files changed, 56 insertions, 0 deletions
diff --git a/c/src/lib/libbsp/arm/lpc32xx/misc/restart.c b/c/src/lib/libbsp/arm/lpc32xx/misc/restart.c
new file mode 100644
index 0000000000..b286390237
--- /dev/null
+++ b/c/src/lib/libbsp/arm/lpc32xx/misc/restart.c
@@ -0,0 +1,56 @@
+/**
+ * @file
+ *
+ * @ingroup lpc32xx
+ *
+ * @brief Restart implementation.
+ */
+
+/*
+ * Copyright (c) 2010
+ * embedded brains GmbH
+ * Obere Lagerstr. 30
+ * D-82178 Puchheim
+ * Germany
+ * <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.com/license/LICENSE.
+ */
+
+#include <rtems.h>
+
+#include <libcpu/arm-cp15.h>
+
+#include <bsp.h>
+
+void lpc32xx_restart(void *addr)
+{
+  ARM_SWITCH_REGISTERS;
+  rtems_interrupt_level level;
+  uint32_t ctrl = 0;
+
+  /* FIXME: DMA shutdown */
+
+  /* FIXME: USB shutdown */
+
+  /* FIXME: Ethernet interface reset */
+
+  rtems_interrupt_disable(level);
+
+  arm_cp15_data_cache_test_and_clean();
+  arm_cp15_instruction_cache_invalidate();
+
+  ctrl = arm_cp15_get_control();
+  ctrl &= ~(ARM_CP15_CTRL_I | ARM_CP15_CTRL_C | ARM_CP15_CTRL_M);
+  arm_cp15_set_control(ctrl);
+
+  asm volatile (
+    ARM_SWITCH_TO_ARM
+    "mov pc, %[addr]\n"
+    ARM_SWITCH_BACK
+    : ARM_SWITCH_OUTPUT
+    : [addr] "r" (addr)
+  );
+}