Sansav2 Bootloader

Adds read-only SD driver, largely copied from ata-sd-pp.c
Only tested on the embedded SD, on the Clip
First steps to build a Normal firmware

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19045 a1c6a512-1295-4272-9138-f99709370657

firmware/target/arm/as3525/app.lds

@@ -0,0 +1,126 @@
+#include "config.h"
+
+ENTRY(start)
+
+OUTPUT_FORMAT(elf32-littlearm)
+OUTPUT_ARCH(arm)
+STARTUP(target/arm/crt0.o)
+
+#define PLUGINSIZE PLUGIN_BUFFER_SIZE
+#define CODECSIZE CODEC_SIZE
+
+#ifdef DEBUG
+#define STUBOFFSET 0x10000
+#else
+#define STUBOFFSET 0
+#endif
+
+#include "cpu.h"
+#define IRAMSIZE 0x50000
+#define DRAMSIZE (MEMORYSIZE * 0x100000) - STUBOFFSET - PLUGINSIZE - CODECSIZE
+
+#define IRAMORIG 0x0
+#define DRAMORIG 0x30000000 + STUBOFFSET
+
+/* End of the audio buffer, where the codec buffer starts */
+#define ENDAUDIOADDR  (DRAMORIG + DRAMSIZE)
+
+/* Where the codec buffer ends, and the plugin buffer starts */
+#define ENDADDR (ENDAUDIOADDR + CODECSIZE)
+
+MEMORY
+{
+    IRAM : ORIGIN = IRAMORIG, LENGTH = IRAMSIZE
+    DRAM : ORIGIN = DRAMORIG, LENGTH = DRAMSIZE
+}
+
+SECTIONS
+{
+    loadaddress = 0x30000000;
+
+    .vectors DRAMORIG :
+    {
+        _vectorstart = .;
+        *(.vectors*);
+        *(.init.text)
+        . = ALIGN(0x4);
+    } > DRAM
+
+    .text :
+    {
+        _textstart = .;
+        *(.text)
+        *(.text*)
+        *(.icode)
+        *(.glue_7)
+        *(.glue_7t)
+        . = ALIGN(0x4);
+    } > DRAM
+
+    .rodata :
+    {
+        *(.rodata)  /* problems without this, dunno why */
+        *(.rodata*)
+        *(.rodata.str1.1)
+        *(.rodata.str1.4)
+        *(.irodata*)
+        . = ALIGN(0x4);
+    } > DRAM
+
+    .data :
+    {
+        *(.data*)
+        *(.idata*)
+        . = ALIGN(0x4);
+    } > DRAM
+
+    /DISCARD/ :
+    {
+        *(.eh_frame)
+    }
+
+    _initdata_end =.;
+
+    .stack (NOLOAD) :
+    {
+       *(.stack)
+       stackbegin = .;
+       . += 0x2000;
+       stackend = .;
+    } > DRAM
+
+    .bss (NOLOAD) :
+    {
+       _edata = .;
+        *(.bss*)
+        *(.ibss*)
+        *(COMMON)
+        . = ALIGN(0x4);
+       _end = .;
+    } > DRAM
+
+    .audiobuf (NOLOAD) :
+    {
+        . = ALIGN(4);
+        _audiobuffer = .;
+        audiobuffer = .;
+    } > DRAM
+
+    .audiobufend ENDAUDIOADDR (NOLOAD) :
+    {
+        audiobufend = .;
+        _audiobufend = .;
+    } > DRAM
+
+    .codec ENDAUDIOADDR  (NOLOAD) :
+    {
+        codecbuf = .;
+        _codecbuf = .;
+    }
+
+    .plugin ENDADDR (NOLOAD) :
+    {
+        _pluginbuf = .;
+        pluginbuf = .;
+    }
+}