diff options
Diffstat (limited to 'firmware/target/arm/at91sam/boot.lds')
-rw-r--r-- | firmware/target/arm/at91sam/boot.lds | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/firmware/target/arm/at91sam/boot.lds b/firmware/target/arm/at91sam/boot.lds new file mode 100644 index 0000000000..c638511e47 --- /dev/null +++ b/firmware/target/arm/at91sam/boot.lds | |||
@@ -0,0 +1,81 @@ | |||
1 | OUTPUT_FORMAT("elf32-littlearm", "elf32-littlearm", "elf32-littlearm") | ||
2 | OUTPUT_ARCH(arm) | ||
3 | ENTRY(reset_handler) | ||
4 | STARTUP(target/arm/at91sam/lyre_proto1/crt0.o) | ||
5 | |||
6 | #define DRAMSIZE (MEMORYSIZE * 0x100000) | ||
7 | #define DRAMORIG 0x20000000 | ||
8 | #define IRAM0ORIG 0x200000 | ||
9 | #define IRAM0SIZE 4K | ||
10 | #define IRAM1ORIG 0x300000 | ||
11 | #define IRAM1SIZE 4K | ||
12 | #define STACKSIZE 2k | ||
13 | |||
14 | MEMORY | ||
15 | { | ||
16 | DRAM : ORIGIN = DRAMORIG, LENGTH = DRAMSIZE | ||
17 | IRAM0 : ORIGIN = IRAM0ORIG, LENGTH = IRAM0SIZE | ||
18 | } | ||
19 | |||
20 | SECTIONS | ||
21 | { | ||
22 | /* We will put Rockbox bootloader at the last 1MByte of the SDRAM. */ | ||
23 | |||
24 | /* Example of a section: | ||
25 | * .section VMA(Virtual Memory Address) : LMA(Load Memory Address). | ||
26 | * VMA and LMA addresses can be verified by doing: | ||
27 | * "arm-elf-objdump -h bootloader.elf". */ | ||
28 | |||
29 | .vectors 0 : AT (DRAMORIG + DRAMSIZE - 1M) | ||
30 | { | ||
31 | _start_vectors_section = .; | ||
32 | *(.vectors) | ||
33 | *(.glue_7) | ||
34 | *(.glue_7t) | ||
35 | . = ALIGN(4); | ||
36 | _end_vectors_section = .; | ||
37 | } | ||
38 | |||
39 | .text (DRAMORIG + DRAMSIZE -1M + SIZEOF(.vectors)) : \ | ||
40 | AT (DRAMORIG + DRAMSIZE -1M + SIZEOF(.vectors)) | ||
41 | { | ||
42 | *(.text) | ||
43 | *(.text*) | ||
44 | *(.icode) | ||
45 | *(.icode*) | ||
46 | *(.rodata) | ||
47 | *(.rodata*) | ||
48 | . = ALIGN(4); | ||
49 | } | ||
50 | |||
51 | /* Initialized variables are placed on SDRAM, right after .vectors section. */ | ||
52 | /* Data section: VMA is the same as the LMA, right after the end of .vector */ | ||
53 | .data . : | ||
54 | { | ||
55 | *(.data) | ||
56 | *(.data*) | ||
57 | . = ALIGN(4); | ||
58 | _end_data_section = .; | ||
59 | } | ||
60 | |||
61 | /* Uninitialized variables are placed at SDRAM, right after .text section. */ | ||
62 | .bss (NOLOAD) : | ||
63 | |||
64 | { | ||
65 | _start_bss_section = .; | ||
66 | *(.bss) /* Bss section contains all uninitialized data generated by the compiler. */ | ||
67 | *(.bss*) | ||
68 | *(COMMON) | ||
69 | . = ALIGN(4); | ||
70 | _end_bss_section = .; | ||
71 | } | ||
72 | |||
73 | /* Stack is placed at SDRAM, right after .bss section. */ | ||
74 | .stack . : | ||
75 | { | ||
76 | *(.stack) | ||
77 | stackbegin = .; | ||
78 | . += STACKSIZE; | ||
79 | stackend = .; | ||
80 | } | ||
81 | } | ||