From a420561bf8315f60c290ea41aaa7e80f410c592d Mon Sep 17 00:00:00 2001
From: Michael Sevakis <jethead71@rockbox.org>
Date: Sat, 8 May 2010 07:45:34 +0000
Subject: Gigabeat S: Reclaim about 800K of memory that was laying unused. Get
 rid of DEVBSS_ATTR for this target and implement as NOCACHEBSS_ATTR. Plugin
 and codec buffers move so all that is now incompatible (do full update). No
 version increase for plugins/codecs because the loader will reject them.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25895 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/target/arm/imx31/boot.lds | 44 +++++++++++++++++++++++++++++---------
 1 file changed, 34 insertions(+), 10 deletions(-)

(limited to 'firmware/target/arm/imx31/boot.lds')

diff --git a/firmware/target/arm/imx31/boot.lds b/firmware/target/arm/imx31/boot.lds
index e08b4bfb7a..6030044c85 100644
--- a/firmware/target/arm/imx31/boot.lds
+++ b/firmware/target/arm/imx31/boot.lds
@@ -19,8 +19,7 @@ STARTUP(target/arm/imx31/crt0.o)
 MEMORY
 {
    DRAM : ORIGIN = DRAMORIG, LENGTH = DRAMSIZE
-   DEVBSS : ORIGIN = CSD0_BASE_ADDR + (MEMORYSIZE*0x100000 - 0x100000), \
-            LENGTH = 0x100000 - FRAME_SIZE - TTB_SIZE
+   QHARRAY : ORIGIN = QHARRAY_PHYS_ADDR, LENGTH = QHARRAY_SIZE
 }
 
 SECTIONS
@@ -59,6 +58,18 @@ SECTIONS
         . = ALIGN(0x4);
         _dataend = . ;
     } > DRAM
+
+#if 0 /* Unneeded at the moment */
+    /* .ncdata section is placed at uncached physical alias address and is
+     * loaded at the proper cached virtual address - no copying is
+     * performed in the init code */
+    .ncdata . + NOCACHE_BASE :
+    {
+        . = ALIGN(CACHEALIGN_SIZE); /* >= Cache line boundary */
+        *(.ncdata*)
+        . = ALIGN(CACHEALIGN_SIZE); /* >= Cache line boundary */
+    } AT> DRAM
+#endif
     
     .vectors 0x0 :
     {
@@ -79,20 +90,33 @@ SECTIONS
         stackend = .;
     } > IRAM
 
+    /* .bss and .ncbss are treated as a single section to use one init loop to
+     * zero it - note "_edata" and "_end" */
     .bss (NOLOAD) :
     {
          _edata = .;
          *(.bss*);
          *(.ibss);
          *(COMMON)
-         _end = .;
+         . = ALIGN(0x4);
+    } > DRAM
+    
+    .ncbss . + NOCACHE_BASE (NOLOAD) :
+    {
+        . = ALIGN(CACHEALIGN_SIZE); /* >= Cache line boundary */
+        *(.ncbss*)
+        . = ALIGN(CACHEALIGN_SIZE); /* >= Cache line boundary */
+    } AT> DRAM
+
+    .endaddr . - NOCACHE_BASE (NOLOAD) :
+    {
+        _end = .;
     } > DRAM
-   
-    .devbss (NOLOAD) :
+
+    .qharray (NOLOAD) :
     {
-        _devbssdata = .;
-    	*(.qharray)
-        *(.devbss*)
-        _devbssend = .;
-    } > DEVBSS
+	_qharray = .;
+	*(.qharray)
+	_qharrayend = .;
+    } > QHARRAY
 }
-- 
cgit v1.2.3