From b3abcb807b7f6202158a47668af7f2505b6dd25e Mon Sep 17 00:00:00 2001
From: Marcin Bukat <marcin.bukat@gmail.com>
Date: Mon, 20 Jan 2014 10:42:02 +0100
Subject: rombox: Do not copy .init section to ram on startup.

This is pointless to copy this code as it can be run in-place.

Change-Id: I73b4f4a3337a88434af457c3f1e40b8d55a5a79e
---
 firmware/rom.lds | 29 +++++++++++------------------
 1 file changed, 11 insertions(+), 18 deletions(-)

(limited to 'firmware/rom.lds')

diff --git a/firmware/rom.lds b/firmware/rom.lds
index 7770ce9e5e..c959bf272d 100644
--- a/firmware/rom.lds
+++ b/firmware/rom.lds
@@ -56,18 +56,11 @@ STARTUP(crt0.o)
 #define ENDAUDIOADDR  (DRAMORIG + DRAMSIZE)
 #define CODECORIG ENDAUDIOADDR
 
-/* .init is copied to codec buffer */
-#define INITORIG CODECORIG
-#define INITSIZE CODECSIZE
-
 MEMORY
 {
    DRAM : ORIGIN = DRAMORIG, LENGTH = DRAMSIZE
    IRAM : ORIGIN = IRAMORIG, LENGTH = IRAMSIZE
    FLASH : ORIGIN = FLASHORIG, LENGTH = FLASHSIZE
-#ifdef HAVE_INIT_ATTR
-   INIT : ORIGIN = INITORIG, LENGTH = INITSIZE
-#endif
 }
 
 SECTIONS
@@ -93,6 +86,9 @@ SECTIONS
         KEEP(*(.resetvectors));
         KEEP(*(.vectors));
         . = ALIGN(0x200);
+#ifdef HAVE_INIT_ATTR
+        *(.initdata*)
+#endif
         *(.data*)
         . = ALIGN(0x4);
         _dataend = .;        
@@ -111,6 +107,14 @@ SECTIONS
     {
         *(.init.text)
         KEEP(*(.startup*));
+#ifdef HAVE_INIT_ATTR
+        /* all this symbols are set to the same address so .init copy loop
+           will be skiped in crt0.S */
+        _initstart = .;
+        _initend = .;
+        _initcopy = .;
+        *(.init*)
+#endif
         *(.text*)
         . = ALIGN(0x4);
     } > FLASH
@@ -133,17 +137,6 @@ SECTIONS
         _iramend = .;
     } > IRAM
 
-#ifdef HAVE_INIT_ATTR
-    .init INITORIG : AT ( _iramcopy + SIZEOF(.iram) )
-    {
-        _initstart = .;
-        *(.init*)
-        *(.initdata*)
-        _initend = .;
-    } > INIT
-    _initcopy = LOADADDR(.init);
-#endif
-
     .ibss (NOLOAD) :
     {
         _iedata = .;
-- 
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