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#include "config.h"
ENTRY(_vectors)
OUTPUT_FORMAT(elf32-littlearm)
OUTPUT_ARCH(arm)
STARTUP(target/arm/tms320dm320/crt0.o)
#ifndef LCD_NATIVE_WIDTH
#define LCD_NATIVE_WIDTH LCD_WIDTH
#endif
#ifndef LCD_NATIVE_HEIGHT
#define LCD_NATIVE_HEIGHT LCD_HEIGHT
#endif
#define LCD_FUDGE LCD_NATIVE_WIDTH%32
#define LCD_BUFFER_SIZE ((LCD_NATIVE_WIDTH+LCD_FUDGE)*LCD_NATIVE_HEIGHT*2)
/* must be 16Kb (0x4000) aligned */
#define TTB_SIZE (0x4000)
/* Give this some memory to allow it to align to the MMU boundary.
* Note that since there are two buffers (YUV/RGB) it calculates the approximate
* memory needed in steps of 1 Meg.
*/
#define LCD_TTB_AREA 0x100000*((LCD_BUFFER_SIZE>>19)+1)
/* Bootloader only uses/knows about the upper 32 M */
#define DRAMORIG CONFIG_SDRAM_START+0x02000000
#define DRAMSIZE (MEMORYSIZE * 0x80000)
#define IRAMORIG 0x00000000
#define IRAMSIZE 0x4000
#define FLASHORIG 0x00100000
#ifdef SANSA_CONNECT
/* Offset in flash from beginning, we don't want overwrite OF bootloader
due to recovery mode and more importantly - hardware block protection.
This offset makes Rockbox bootloader a replacement for OF vmlinux.
In .srr file header add any valid memory address from following
<0x1000000; 0x1300180) u (0x131EAF4; 0x1420000) u (0x1440000; 0x5000000>
ensuring that complete bootloader fits in.
Entry point in .srr file should be equal to _loadaddress. */
#define FLASHSIZE 0x00400000
#define FLASHMEMORIG 0x00120010
/* Kernel partition is 2 M, srr header is 16 bytes, sig is 2048 bytes */
#define FLASHMEMSIZE 0x001FF7F0
#else
/* On targets other than Sansa Connect use whole flash for bootloader */
#define FLASHSIZE 0x00800000
#define FLASHMEMORIG FLASHORIG
#define FLASHMEMSIZE FLASHSIZE
#endif
PRO_STACK_SIZE = 0x2000;
IRQ_STACK_SIZE = 0x400;
FIQ_STACK_SIZE = 0x400;
/* End of the audio buffer, where the codec buffer starts */
#define TTB_BEGIN (DRAMORIG + DRAMSIZE - LCD_TTB_AREA)
MEMORY
{
DRAM : ORIGIN = DRAMORIG, LENGTH = DRAMSIZE
IRAM : ORIGIN = IRAMORIG, LENGTH = IRAMSIZE
FLASH : ORIGIN = FLASHMEMORIG, LENGTH = FLASHMEMSIZE
}
SECTIONS
{
/* Set up variables needed for memory initialization */
_sdram_start = DRAMORIG;
_sdram_sizem = (DRAMSIZE / 0x100000);
_flash_start = FLASHORIG;
_flash_sizem = (FLASHSIZE / 0x100000);
.vectors :
{
_vectorsstart = .;
KEEP(*(.vectors))
_vectorsend = .;
} > IRAM AT> FLASH
_vectorscopy = LOADADDR(.vectors);
/* crt0.S initialization */
.init :
{
. = ALIGN(0x4);
_loadaddress = .;
*(.init)
} > FLASH
/* Program code */
.text :
{
. = ALIGN(0x4);
*(.text*)
} > FLASH
/* Thumb interworking sections - for some reason LD dies even if these
* sections are empty.
*/
.glue :
{
. = ALIGN(0x4);
*(.glue_7) /* ARM calling Thumb */
*(.glue_7t) /* Thumb calling ARM */
} > FLASH
/* Read-only data */
.rodata :
{
. = ALIGN(0x4);
*(.rodata*)
} > FLASH
/* Dynamic data - this needs to be copied out of flash before it is used. */
.data :
{
. = ALIGN(0x4);
_dramstart = .;
*(.data*)
_dramend = .;
} > DRAM AT> FLASH
_dramcopy = LOADADDR(.data);
.bss (NOLOAD) :
{
. = ALIGN(0x4);
_bss_start = .;
*(.bss*)
*(COMMON)
_bss_end = .;
} > DRAM
.iram :
{
. = ALIGN(0x4);
_iramstart = .;
*(.icode*)
*(.irodata*)
*(.idata*)
_iramend = .;
} > IRAM AT> FLASH
_iramcopy = LOADADDR(.iram);
.ibss (NOLOAD) :
{
. = ALIGN(0x4);
_ibss_start = .;
*(.ibss*)
_ibss_end = .;
} > IRAM
/* Program stack space */
.pro_stack (NOLOAD):
{
. = ALIGN(0x4);
*(.stack)
stackbegin = .; /* Variable for thread.c */
_pro_stack_end = .;
. += PRO_STACK_SIZE;
_pro_stack_start = .;
stackend = .; /* Variable for tread.c */
} > IRAM
/* IRQ stack space */
.irq_stack (NOLOAD):
{
. = ALIGN(0x4);
_irq_stack_end = .;
. += IRQ_STACK_SIZE;
_irq_stack_start = .;
} > IRAM
/* FIQ stack space */
.fiq_stack (NOLOAD):
{
. = ALIGN(0x4);
_fiq_stack_end = .;
. += FIQ_STACK_SIZE;
_fiq_stack_start = .;
} > IRAM
.ttbtable TTB_BEGIN (NOLOAD) :
{
. = ALIGN (0x4000);
_ttbstart = .;
. += TTB_SIZE;
} > DRAM
/* The LCD buffer should be at the end of memory to protect against
* overflowing something else when the YUV blitter is fudging the screen
* size.
*/
.lcdbuffer (NOLOAD) :
{
_lcdbuf = .;
. += LCD_BUFFER_SIZE;
} > DRAM
.lcdbuffer2 (NOLOAD) :
{
_lcdbuf2 = .;
. += LCD_BUFFER_SIZE;
} > DRAM
}
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