.type _start, #function
.globl _start
-_start: adr r12, kernel_start @ offset of kernel zImage
- ldr r4, [r12, #0x2c] @ length of zImage
+_start: add lr, pc, #-0x8 @ lr = current load addr
adr r13, data
- add r4, r4, r12 @ end of zImage, start of initrd
- ldmia r13!, {r5-r6} @ r5 = dest, r6 = length
+ ldmia r13!, {r4-r6} @ r5 = dest, r6 = length
+ add r4, r4, lr @ r4 = initrd_start + load addr
bl move @ move the initrd
/*
*/
movne r10, #0 @ terminator
movne r4, #2 @ Size of this entry (2 words)
- stmneia r8, {r4, r5, r10} @ Size, ATAG_CORE, terminator
+ stmneia r9, {r4, r5, r10} @ Size, ATAG_CORE, terminator
/*
* find the end of the tag list, and then add an INITRD tag on the end.
mov r5, #4 @ Size of initrd tag (4 words)
stmia r9, {r5, r6, r7, r8, r10}
- mov pc, r12 @ call kernel
+ b kernel_start @ call kernel
/*
* Move the block of memory length r6 from address r4 to address r5
.size _start, . - _start
.type data,#object
-data: .word initrd_addr @ destination initrd address
- .word initrd_len @ initrd size
+data: .word initrd_start @ source initrd address
+ .word initrd_phys @ destination initrd address
+ .word initrd_size @ initrd size
- .word 0x54410001 @ r4 = ATAG_CORE
- .word 0x54420005 @ r5 = ATAG_INITRD2
- .word initrd_addr @ r6
- .word initrd_len @ r7
- .word params @ r8
- .size data, . - _data
-
- .type initrd_start,#object
-
-kernel_start:
+ .word 0x54410001 @ r5 = ATAG_CORE
+ .word 0x54420005 @ r6 = ATAG_INITRD2
+ .word initrd_phys @ r7
+ .word initrd_size @ r8
+ .word params_phys @ r9
+ .size data, . - data