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MIPS: start.S: save reused arguments earlier in relocate_code

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Save the reused parameters at the beginning
of the 'relocate_code' function. This makes
the function a bit more readable.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Cc: Daniel Schwierzeck <daniel.schwierzeck@googlemail.com>
This commit is contained in:
Gabor Juhos 2013-01-24 06:27:53 +00:00 committed by Daniel Schwierzeck
parent f321b0f99f
commit b2fe86f887
2 changed files with 6 additions and 4 deletions
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5
arch/mips/cpu/mips32/start.S
View File

@ -279,11 +279,13 @@ reset:
relocate_code: relocate_code:
move sp, a0 # set new stack pointer move sp, a0 # set new stack pointer
move s0, a1 # save gd in s0
move s2, a2 # save destination address in s2
li t0, CONFIG_SYS_MONITOR_BASE li t0, CONFIG_SYS_MONITOR_BASE
la t3, in_ram la t3, in_ram
lw t2, -12(t3) # t2 <-- uboot_end_data lw t2, -12(t3) # t2 <-- uboot_end_data
move t1, a2 move t1, a2
move s2, a2 # s2 <-- destination address
/* /*
* Fix $gp: * Fix $gp:
@ -304,7 +306,6 @@ relocate_code:
/* /*
* Save destination address and size for later usage in flush_cache() * Save destination address and size for later usage in flush_cache()
*/ */
move s0, a1 # save gd in s0
move a0, t1 # a0 <-- destination addr move a0, t1 # a0 <-- destination addr
sub a1, t2, t0 # a1 <-- size sub a1, t2, t0 # a1 <-- size

5
arch/mips/cpu/mips64/start.S
View File

@ -158,11 +158,13 @@ reset:
relocate_code: relocate_code:
move sp, a0 # set new stack pointer move sp, a0 # set new stack pointer
move s0, a1 # save gd in s0
move s2, a2 # save destination address in s2
dli t0, CONFIG_SYS_MONITOR_BASE dli t0, CONFIG_SYS_MONITOR_BASE
dla t3, in_ram dla t3, in_ram
ld t2, -24(t3) # t2 <-- uboot_end_data ld t2, -24(t3) # t2 <-- uboot_end_data
move t1, a2 move t1, a2
move s2, a2 # s2 <-- destination address
/* /*
* Fix $gp: * Fix $gp:
@ -183,7 +185,6 @@ relocate_code:
/* /*
* Save destination address and size for dlater usage in flush_cache() * Save destination address and size for dlater usage in flush_cache()
*/ */
move s0, a1 # save gd in s0
move a0, t1 # a0 <-- destination addr move a0, t1 # a0 <-- destination addr
dsub a1, t2, t0 # a1 <-- size dsub a1, t2, t0 # a1 <-- size