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

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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
This commit is contained in:
Thomas Martitz 2009-04-10 17:00:23 +00:00
parent 0eb9288056
commit bac611868e
3 changed files with 7 additions and 8 deletions
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10
firmware/target/arm/as3525/app.lds
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@ -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
}