variants/GENERIC_STM32H747_M4: Update linker_script to support DRAM f…

…irmware. To load the M4 firmware into SDRAM, we must ensure the linker script does not include any loadable sections that are placed in the shared memory region. If such sections exist, the ELF loader will overwrite the shared memory region when loading the firmware. Additionally, the Open-AMP section is no longer required, as the resource table is now populated manually in resource_table_init. Therefore, this section can be removed. Signed-off-by: iabdalkader <[email protected]>
arduino · Aug 1, 2024 · 6ffb9a3 · 6ffb9a3
1 parent a208513
commit 6ffb9a3
Showing 1 changed file with 7 additions and 10 deletions.
diff --git a/variants/GENERIC_STM32H747_M4/linker_script.ld b/variants/GENERIC_STM32H747_M4/linker_script.ld
@@ -91,24 +91,21 @@ SECTIONS
         __bss_end__ = .;
         _ebss = .;
     } > RAM
-    .openamp_section (NOLOAD) : {
- 				. = ABSOLUTE(0x38000000);
- 				*(.resource_table)
- 				} >RAM_D3  AT > FLASH
- 				.pdm_section (NOLOAD) : {
- 				. = ABSOLUTE(0x3800FC00);
- 				*(.pdm_buffer)
- 				} > RAM_D3
 
-    .heap (COPY):
+    .pdm_section 0x3800FC00 (NOLOAD):  {
+        *(.pdm_buffer)
+    } > RAM_D3
+
+    .heap (NOLOAD):
     {
         __end__ = .;
         PROVIDE(end = .);
         *(.heap*)
         . = ORIGIN(RAM) + LENGTH(RAM) - 0x400;
         __HeapLimit = .;
     } > RAM
-    .stack_dummy (COPY):
+
+    .stack_dummy (NOLOAD):
     {
         *(.stack*)
     } > RAM