bsp/leon3: Untangle interrupt controller support

Separate the probing of the interrupt controller from the
initialization.

1 files changed, 83 insertions, 0 deletions

diff --git a/bsps/sparc/leon3/include/bsp/irqimpl.h b/bsps/sparc/leon3/include/bsp/irqimpl.h
new file mode 100644
index 0000000000..77619c99b9
--- /dev/null
+++ b/bsps/sparc/leon3/include/bsp/irqimpl.h
@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSBSPsSPARCLEON3
+ *
+ * @brief This header file provides interfaces used by the interrupt support
+ *   implementation.
+ */
+
+/*
+ * Copyright (C) 2021 embedded brains GmbH & Co. KG
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * 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 OWNER 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.
+ */
+
+#ifndef LIBBSP_SPARC_LEON3_BSP_IRQIMPL_H
+#define LIBBSP_SPARC_LEON3_BSP_IRQIMPL_H
+
+#include <rtems.h>
+#include <grlib/grlib.h>
+
+struct ambapp_dev;
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @addtogroup RTEMSBSPsSPARCLEON3
+ *
+ * @{
+ */
+
+/**
+ * @brief This lock serializes the interrupt controller access.
+ */
+extern rtems_interrupt_lock LEON3_IrqCtrl_Lock;
+
+/**
+ * @brief This pointer provides the IRQ(A)MP register block address.
+ */
+extern volatile struct irqmp_regs *LEON3_IrqCtrl_Regs;
+
+/**
+ * @brief This pointer provides the IRQ(A)MP device information block.
+ */
+extern struct ambapp_dev *LEON3_IrqCtrl_Adev;
+
+/**
+ * @brief Initializes the interrupt controller for the boot processor.
+ *
+ * @param[in, out] regs is the IRQ(A)MP register block address.
+ */
+void leon3_ext_irq_init( volatile struct irqmp_regs *regs );
+
+/** @} */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* LIBBSP_SPARC_LEON3_BSP_IRQIMPL_H */