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Nokia RX-51: Simplify copy kernel code

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Expression (r + (r0 - r1)) produce same result as (r - (r1 - r0)). So it
does not matter which one is called. Always call the first option and
remove second one.

Signed-off-by: Pali Rohár <pali@kernel.org>
This commit is contained in:
Pali Rohár 2022-08-11 22:27:23 +02:00 committed by Tom Rini
parent c5be5f6f54
commit 04bd87c24c
1 changed files with 2 additions and 5 deletions
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7
board/nokia/rx51/lowlevel_init.S
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@ -55,16 +55,13 @@ save_boot_params:
copy_kernel_start:
adr r0, relocaddr /* r0 - address of section relocaddr */
ldr r1, relocaddr /* r1 - address of relocaddr after relocation */
cmp r0, r1
/* r4 - calculated offset */
subhi r4, r0, r1
sublo r4, r1, r0
sub r4, r0, r1
/* r0 - start of kernel before */
ldr r0, startaddr
addhi r0, r0, r4
sublo r0, r0, r4
add r0, r0, r4
ldr r1, kernoffs
add r0, r0, r1