add gap8 board of riscv for xiuos

2021-08-30 14:05:12 +08:00
parent fde280b6a0
commit 198d61918b
42 changed files with 6303 additions and 1 deletions
@@ -0,0 +1,98 @@
+/****************************************************************************
+ * arch/risc-v/src/gap8/gap8_allocateheap.c
+ *
+ *   Copyright (C) 2018 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * 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.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * 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.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <nuttx/config.h>
+
+#include <sys/types.h>
+#include <debug.h>
+
+#include <nuttx/arch.h>
+#include <nuttx/board.h>
+#include <arch/board/board.h>
+
+#include "riscv_arch.h"
+#include "riscv_internal.h"
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_allocate_heap
+ *
+ * Description:
+ *   This function will be called to dynamically set aside the heap region.
+ *
+ *   For the kernel build (CONFIG_BUILD_KERNEL=y) with both kernel- and
+ *   user-space heaps (CONFIG_MM_KERNEL_HEAP=y), this function provides the
+ *   size of the unprotected, user-space heap.
+ *
+ *   If a protected kernel-space heap is provided, the kernel heap must be
+ *   allocated (and protected) by an analogous up_allocate_kheap().
+ *
+ ****************************************************************************/
+
+void up_allocate_heap(FAR void **heap_start, size_t *heap_size)
+{
+  /* These values come from GAP8.ld */
+
+  extern uint8_t *_heap_start;
+  extern uint8_t *_heap_end;
+  uint32_t hstart = (uint32_t)&_heap_start;
+  uint32_t hend = (uint32_t)&_heap_end;
+
+  *heap_start = &_heap_start;
+  *heap_size = hend - hstart;
+}
+
+/****************************************************************************
+ * Name: riscv_addregion
+ *
+ * Description:
+ *   RAM may be added in non-contiguous chunks.  This routine adds all chunks
+ *   that may be used for heap.
+ *
+ ****************************************************************************/
+
+#if CONFIG_MM_REGIONS > 1
+void riscv_addregion(void)
+{
+  /* TODO: add L1 memorie */
+}
+#endif