FS#10114 - Sansa AMS : use IRAM for codecs on >2MB targets Rafaël Carré

Activates IRAM for AMS Sansas to be used by codecs and core. Fixes Reboot-on-mp3 and gives speed up on codecs using IRAM in general.
I've made a change: the core/codec ratio is 0x20000/0x30000 instead of 0x10000/0x40000, 0x30000 is way more than codecs currently use (0x14000 at max) and the core might need more than 0x10000.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20678 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 4 insertions, 6 deletions

diff --git a/firmware/target/arm/as3525/app.lds b/firmware/target/arm/as3525/app.lds
index 09844a1aab..7f37cc5d7c 100644
--- a/firmware/target/arm/as3525/app.lds
+++ b/firmware/target/arm/as3525/app.lds
@@ -22,14 +22,14 @@ STARTUP(target/arm/crt0.o)
 
 #include "cpu.h"
 
-#define IRAMSIZE 0x50000
-
 #ifdef LOWMEM
 #define DRAMSIZE (MEMORYSIZE * 0x100000) - STUBOFFSET - PLUGINSIZE
-#define CODECORIG (IRAMORIG + IRAMSIZE - CODEC_SIZE)
+#define CODECORIG (IRAMORIG + 0x50000 - CODEC_SIZE)
+#define IRAMSIZE (0x50000 - CODEC_SIZE)
 #else
 #define DRAMSIZE (MEMORYSIZE * 0x100000) - STUBOFFSET - PLUGINSIZE - CODECSIZE
 #define CODECORIG (ENDAUDIOADDR)
+#define IRAMSIZE (0x20000)
 #endif
 
 #define IRAMORIG 0x0
@@ -48,11 +48,9 @@ STARTUP(target/arm/crt0.o)
 MEMORY
 {
 #ifdef LOWMEM
-    IRAM : ORIGIN = IRAMORIG, LENGTH = (IRAMSIZE - CODEC_SIZE)
     CODEC_IRAM : ORIGIN = CODECORIG, LENGTH = CODEC_SIZE
-#else
-    IRAM : ORIGIN = IRAMORIG, LENGTH = IRAMSIZE
 #endif
+    IRAM : ORIGIN = IRAMORIG, LENGTH = IRAMSIZE
     DRAM : ORIGIN = DRAMORIG, LENGTH = DRAMSIZE
 }