1 files changed, 126 insertions, 0 deletions
diff --git a/nuttx/arch/arm/src/sam3u/sam3u_allocateheap.c b/nuttx/arch/arm/src/sam3u/sam3u_allocateheap.c
new file mode 100755
index 000000000..2bd8cacab
--- /dev/null
+++ b/nuttx/arch/arm/src/sam3u/sam3u_allocateheap.c
@@ -0,0 +1,126 @@
+/****************************************************************************
+ * arch/arm/src/common/sam3u_allocateheap.c
+ *
+ *   Copyright (C) 2010 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 <arch/board/board.h>
+
+#include "chip.h"
+#include "up_arch.h"
+#include "up_internal.h"
+
+/****************************************************************************
+ * Private Definitions
+ ****************************************************************************/
+
+#if CONFIG_MM_REGIONS < 2
+#  warning "CONFIG_MM_REGIONS < 2: SRAM1 not included in HEAP"
+#endif
+
+#if CONFIG_MM_REGIONS < 3 && !defined(CONFIG_SAM3U_NAND)
+#  warning "CONFIG_MM_REGIONS < 3: NFC SRAM not included in HEAP"
+#endif
+
+#if CONFIG_MM_REGIONS > 2 && defined(CONFIG_SAM3U_NAND)
+#  error "CONFIG_MM_REGIONS > 3 but cannot used NFC SRAM"
+#  undef CONFIG_MM_REGIONS
+#  define CONFIG_MM_REGIONS 2
+#endif
+
+#if CONFIG_DRAM_END > (SAM3U_INTSRAM0_BASE+CONFIG_SAM3U_SRAM0_SIZE)
+#  error "CONFIG_DRAM_END is beyond the end of SRAM0"
+#  undef CONFIG_DRAM_END
+#  define CONFIG_DRAM_END (SAM3U_INTSRAM0_BASE+CONFIG_SAM3U_SRAM0_SIZE)
+#elif CONFIG_DRAM_END < (SAM3U_INTSRAM0_BASE+CONFIG_SAM3U_SRAM0_SIZE)
+#  warning "CONFIG_DRAM_END is before end of SRAM0... not all of SRAM0 used"
+#endif
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: up_allocate_heap
+ *
+ * Description:
+ *   The heap may be statically allocated by
+ *   defining CONFIG_HEAP_BASE and CONFIG_HEAP_SIZE.  If these
+ *   are not defined, then this function will be called to
+ *   dynamically set aside the heap region.
+ *
+ ****************************************************************************/
+
+void up_allocate_heap(FAR void **heap_start, size_t *heap_size)
+{
+  up_ledon(LED_HEAPALLOCATE);
+  *heap_start = (FAR void*)g_heapbase;
+  *heap_size = CONFIG_DRAM_END - g_heapbase;
+}
+
+/************************************************************************
+ * Name: up_addregion
+ *
+ * Description:
+ *   Memory may be added in non-contiguous chunks.  Additional chunks are
+ *   added by calling this function.
+ *
+ ************************************************************************/
+
+#if CONFIG_MM_REGIONS > 1
+void up_addregion(void)
+{
+  mm_addregion((FAR void*)SAM3U_INTSRAM1_BASE, CONFIG_SAM3U_SRAM1_SIZE);
+
+#if CONFIG_MM_REGIONS > 2
+  mm_addregion((FAR void*)SAM3U_NFCSRAM_BASE, CONFIG_SAM3U_NFCSRAM_SIZE);
+#endif
+}
+#endif