Changeset f2e0f8e in rtems

Timestamp:

Jan 14, 2016, 3:03:51 PM (4 years ago)

Author:

Sebastian Huber <sebastian.huber@…>

Branches:

master

Children:

438fa8d

Parents:

c354fac

git-author:

Sebastian Huber <sebastian.huber@…> (01/14/16 15:03:51)

git-committer:

Sebastian Huber <sebastian.huber@…> (01/19/16 07:36:21)

Message:

bsp/atsam: New

Close #2529.

Location:

c/src/lib/libbsp/arm

Files:

• acinclude.m4 (modified) (1 diff)
• atsam/Makefile.am (added)
• atsam/README (added)
• atsam/bsp_specs (added)
• atsam/clock/systick-freq.c (added)
• atsam/configure.ac (added)
• atsam/console/console.c (added)
• atsam/console/debug-console.c (added)
• atsam/include/bsp.h (added)
• atsam/include/irq.h (added)
• atsam/include/pin-config.h (added)
• atsam/make/custom/atsamv.cfg (added)
• atsam/preinstall.am (added)
• atsam/startup/bspstart.c (added)
• atsam/startup/bspstarthooks.c (added)
• atsam/startup/linkcmds (added)
• atsam/startup/linkcmds.intsram (added)
• atsam/startup/linkcmds.memory.in (added)
• atsam/startup/linkcmds.sdram (added)
• atsam/startup/pin-config.c (added)
• shared/armv7m/include/cache_.h (added)
• shared/include/start.h (modified) (1 diff)

c/src/lib/libbsp/arm/acinclude.m4

@@ -5 +5 @@
   altera-cyclone-v )
     AC_CONFIG_SUBDIRS([altera-cyclone-v]);;
+  atsam )
+    AC_CONFIG_SUBDIRS([atsam]);;
   beagle )
     AC_CONFIG_SUBDIRS([beagle]);;

c/src/lib/libbsp/arm/shared/include/start.h

@@ -122 +122 @@
 }
 
+BSP_START_TEXT_SECTION static inline void
+bsp_start_memcpy_libc(void *dest, const void *src, size_t n)
+{
+  if (dest != src) {
+    memcpy(dest, src, n);
+  }
+}
+
+/**
+ * @brief Copies the .data, .fast_text and .fast_data sections from the load to
+ * the runtime area using the C library memcpy().
+ *
+ * Works only in case the .start, .text and .rodata sections reside in one
+ * memory region.
+ */
+BSP_START_TEXT_SECTION static inline void bsp_start_copy_sections_compact(void)
+{
+  /* Copy .data section */
+  bsp_start_memcpy_libc(
+    bsp_section_data_begin,
+    bsp_section_data_load_begin,
+    (size_t) bsp_section_data_size
+  );
+
+  /* Copy .fast_text section */
+  bsp_start_memcpy_libc(
+    bsp_section_fast_text_begin,
+    bsp_section_fast_text_load_begin,
+    (size_t) bsp_section_fast_text_size
+  );
+
+  /* Copy .fast_data section */
+  bsp_start_memcpy_libc(
+    bsp_section_fast_data_begin,
+    bsp_section_fast_data_load_begin,
+    (size_t) bsp_section_fast_data_size
+  );
+}
+
 BSP_START_TEXT_SECTION static inline void bsp_start_clear_bss(void)
 {