3 files changed, 135 insertions, 4 deletions
diff --git a/bsps/sparc/include/bsp/gnatcommon.h b/bsps/sparc/include/bsp/gnatcommon.h
index 1a04449293..40e8829bb9 100644
--- a/bsps/sparc/include/bsp/gnatcommon.h
+++ b/bsps/sparc/include/bsp/gnatcommon.h
@@ -1,3 +1,18 @@
+/**
+ * @file
+ *
+ * @ingroup RTEMSImplGnat
+ *
+ * @brief This header file provides interfaces of the
+ *   gnat/rtems interrupts and exception handling.
+ */
+
+/**
+ * @defgroup RTEMSImplGnat GNAT/RTEMS interrupts and exception handling
+ *
+ * @ingroup RTEMSImpl
+ */
+
 #ifndef __GNATCOMMON_H
 #define __GNATCOMMON_H
 
diff --git a/bsps/sparc/include/bsp/gr_leon4_n2x.h b/bsps/sparc/include/bsp/gr_leon4_n2x.h
index 9a8041202a..97ca6d5dfb 100644
--- a/bsps/sparc/include/bsp/gr_leon4_n2x.h
+++ b/bsps/sparc/include/bsp/gr_leon4_n2x.h
@@ -1,11 +1,38 @@
-/*  GR-CPCI-LEON4-N2X (NGFP) PCI Peripheral driver
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSBSPsSPARCLEON3
  *
+ * @brief This header file provides interfaces of the
+ *   GR-CPCI-LEON4-N2X (NGFP) PCI Peripheral driver.
+ */
+
+/*
  *  COPYRIGHT (c) 2013.
  *  Cobham Gaisler AB.
  *
- *  The license and distribution terms for this file may be
- *  found in found in the file LICENSE in this distribution or at
- *  http://www.rtems.org/license/LICENSE.
+ * 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.
  *
  *  Configures the GR-CPIC-LEON4-N2X interface PCI board in peripheral
  *  mode. This driver provides a AMBA PnP bus by using the general part
diff --git a/bsps/sparc/include/bsp/sparc-counter.h b/bsps/sparc/include/bsp/sparc-counter.h
new file mode 100644
index 0000000000..bc4f2220e7
--- /dev/null
+++ b/bsps/sparc/include/bsp/sparc-counter.h
@@ -0,0 +1,89 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSBSPsSPARCShared
+ *
+ * @brief This header file provides interfaces of a CPU counter implementation
+ *   for SPARC BSPs.
+ */
+
+/*
+ * Copyright (C) 2016, 2023 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 _BSP_SPARC_COUNTER_H
+#define _BSP_SPARC_COUNTER_H
+
+#include <rtems/score/cpu.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+struct timecounter;
+
+void _SPARC_Counter_at_tick_clock( void );
+
+CPU_Counter_ticks _SPARC_Counter_read_default( void );
+
+CPU_Counter_ticks _SPARC_Counter_read_clock_isr_disabled( void );
+
+CPU_Counter_ticks _SPARC_Counter_read_clock( void );
+
+uint32_t _SPARC_Get_timecount_clock( struct timecounter * );
+
+typedef CPU_Counter_ticks ( *SPARC_Counter_read )( void );
+
+/*
+ * The SPARC processors supported by RTEMS have no built-in CPU counter
+ * support.  We have to use some hardware counter module for this purpose, for
+ * example the GPTIMER instance used by the clock driver.  The BSP must provide
+ * an implementation of the CPU counter read function.  This allows the use of
+ * dynamic hardware enumeration.
+ */
+typedef struct {
+  SPARC_Counter_read                read_isr_disabled;
+  SPARC_Counter_read                read;
+  volatile const CPU_Counter_ticks *counter_register;
+  volatile const uint32_t          *pending_register;
+  uint32_t                          pending_mask;
+  CPU_Counter_ticks                 accumulated;
+  CPU_Counter_ticks                 interval;
+} SPARC_Counter;
+
+extern SPARC_Counter _SPARC_Counter;
+
+#define SPARC_COUNTER_DEFINITION \
+  SPARC_Counter _SPARC_Counter = { \
+    .read_isr_disabled = _SPARC_Counter_read_default, \
+    .read = _SPARC_Counter_read_default \
+  }
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* _BSP_SPARC_COUNTER_H */