Changed special purpose register inline functions to macros.

fixed some minors in mpc83xx support
added file for mpc55xx watchdog support

1 files changed, 59 insertions, 0 deletions

diff --git a/c/src/lib/libcpu/powerpc/mpc55xx/include/watchdog.h b/c/src/lib/libcpu/powerpc/mpc55xx/include/watchdog.h
new file mode 100644
index 0000000000..2c00621076
--- /dev/null
+++ b/c/src/lib/libcpu/powerpc/mpc55xx/include/watchdog.h
@@ -0,0 +1,59 @@
+/**
+ * @file
+ *
+ * @ingroup mpc55xx
+ *
+ * @brief Header file for the watchdog timer.
+ */
+
+/*
+ * Copyright (c) 2008
+ * 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.
+ */
+
+#ifndef LIBCPU_POWERPC_MPC55XX_WATCHDOG_H
+#define LIBCPU_POWERPC_MPC55XX_WATCHDOG_H
+
+#include <stdbool.h>
+
+#include <rtems.h>
+
+#include <libcpu/powerpc-utility.h>
+
+static inline void mpc55xx_watchdog_clear()
+{
+	PPC_SET_SPECIAL_PURPOSE_REGISTER( BOOKE_TSR, BOOKE_TSR_WIS);
+}
+
+static inline void mpc55xx_watchdog_enable_interrupt( bool enable)
+{
+	if (enable) {
+		PPC_SET_SPECIAL_PURPOSE_REGISTER_BITS( BOOKE_TCR, BOOKE_TCR_WIE);
+	} else {
+		PPC_CLEAR_SPECIAL_PURPOSE_REGISTER_BITS( BOOKE_TCR, BOOKE_TCR_WIE);
+	}
+}
+
+static inline rtems_status_code mpc55xx_watchdog_set_time_base_bit( uint32_t bit)
+{
+	if (bit > 63) {
+		return RTEMS_INVALID_NUMBER;
+	}
+
+	PPC_SET_SPECIAL_PURPOSE_REGISTER_BITS_MASKED(
+		BOOKE_TCR,
+		BOOKE_TCR_WP( bit) | BOOKE_TCR_WPEXT( bit >> 2),
+		BOOKE_TCR_WP_MASK | BOOKE_TCR_WPEXT_MASK
+	);
+
+	return RTEMS_SUCCESSFUL;
+}
+
+#endif /* LIBCPU_POWERPC_MPC55XX_WATCHDOG_H */