1 files changed, 82 insertions, 0 deletions
diff --git a/hw/bsp/stm32f4discovery/src/os_bsp.c b/hw/bsp/stm32f4discovery/src/os_bsp.c
new file mode 100644
index 00000000..f2fe9e1a
--- /dev/null
+++ b/hw/bsp/stm32f4discovery/src/os_bsp.c
@@ -0,0 +1,82 @@
+/**
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ * 
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/*
+ * XXXX for now have this here.
+ */
+#include <hal/flash_map.h>
+#include <hal/hal_bsp.h>
+
+static struct flash_area bsp_flash_areas[] = {
+    [FLASH_AREA_BOOTLOADER] = {
+        .fa_flash_id = 0,	/* internal flash */
+        .fa_off = 0x08000000,	/* beginning */
+        .fa_size = (32 * 1024)
+    },
+    /* 2 * 16K and 1*64K sectors here */
+    [FLASH_AREA_IMAGE_0] = {
+        .fa_flash_id = 0,
+        .fa_off = 0x08020000,
+        .fa_size = (384 * 1024)
+    },
+    [FLASH_AREA_IMAGE_1] = {
+        .fa_flash_id = 0,
+        .fa_off = 0x08080000,
+        .fa_size = (384 * 1024)
+    },
+    [FLASH_AREA_IMAGE_SCRATCH] = {
+        .fa_flash_id = 0,
+        .fa_off = 0x080e0000,
+        .fa_size = (128 * 1024)
+    },
+    [FLASH_AREA_NFFS] = {
+        .fa_flash_id = 0,
+        .fa_off = 0x08008000,
+        .fa_size = (32 * 1024)
+    }
+};
+
+void _close(int fd);
+
+/*
+ * Returns the flash map slot where the currently active image is located.
+ * If executing from internal flash from fixed location, that slot would
+ * be easy to find.
+ * If images are in external flash, and copied to RAM for execution, then
+ * this routine would have to figure out which one of those slots is being
+ * used.
+ */
+int
+bsp_imgr_current_slot(void)
+{
+    return FLASH_AREA_IMAGE_0;
+}
+
+void
+bsp_init(void)
+{
+    /*
+     * XXX this reference is here to keep this function in.
+     */
+    _sbrk(0);
+    _close(0);
+    flash_area_init(bsp_flash_areas,
+                    sizeof(bsp_flash_areas) / sizeof(bsp_flash_areas[0]));
+}
+