M:Robe 500: Improve audio DMA shutdown for Pause/Stop and significantly reduce the size of the DSP code.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23817 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 23 insertions, 13 deletions

diff --git a/firmware/target/arm/tms320dm320/dsp/linker.cmd b/firmware/target/arm/tms320dm320/dsp/linker.cmd
index 844fe25903..c2ae5f0c6b 100644
--- a/firmware/target/arm/tms320dm320/dsp/linker.cmd
+++ b/firmware/target/arm/tms320dm320/dsp/linker.cmd
@@ -1,29 +1,39 @@
--c 
+-c
 -x 
 -stack 0x1000 
 -heap  0x100 
--l rts500.lib
+
+/* The rtx500.lib should be included if you want proper initialization, 
+ *  currently the program is setup so that it is not necessary to save space.
+ *  reset vector should jump to _c_int00 if initialization is needed.
+ *
+ * -l rts500.lib*/
  
 MEMORY
 {
 PAGE 0:
-    DARAM: origin =     80h, length =  7F80h
-    SARAM: origin =   8000h, length =  4000h
+    DARAM (RWIX): origin =  80h,    length =  7F00h
+    VECS  (RIX) : origin =  7F80h,  length =  80h
+    
+    /* SARAM can be read and written to, but it cannot execute and does not need
+     *  to be initialized. */
+    SARAM (RW)  : origin =  8000h,  length =  4000h
 }
 
 SECTIONS
 {
-    .text   PAGE 0
-    .cinit  PAGE 0
-    .switch PAGE 0
+    .text   > DARAM PAGE 0
+    .cinit  > DARAM PAGE 0
+    .switch > DARAM PAGE 0
+    .data   > DARAM PAGE 0
 
-    .bss    PAGE 0
-    .const  PAGE 0
-    .sysmem PAGE 0
-    .stack  PAGE 0
+    .bss    > DARAM PAGE 0
+    .const  > DARAM PAGE 0
+    .sysmem > DARAM PAGE 0
+    .stack  > DARAM PAGE 0
 
-    .vectors : PAGE 0 load = 7F80h
+    .vectors > VECS PAGE 0
 
     /* DMA buffers for ABU mode must start on a 2*size boundary. */
-    .dma : PAGE 0 load = 0x8000
+    .dma    > SARAM PAGE 0
 }