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bootm: Reduce the unnecessary memmove 

Although load address and image start address are same address,
bootm command always does memmove.
That is unnecessary memmove and can be taken few milliseconds
(about 500 msec to 1000 msec).
If skip this memmove, we can reduce the boot time.

Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
utp
Minkyu Kang 2009-02-18 09:05:52 +09:00 committed by Wolfgang Denk
parent 670cbde8da
commit fca0cecff7
1 changed files with 4 additions and 2 deletions
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6
common/cmd_bootm.c
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@ -340,8 +340,10 @@ static int bootm_load_os(image_info_t os, ulong *load_end, int boot_progress)
} else {
printf (" Loading %s ... ", type_name);
memmove_wd ((void *)load,
(void *)image_start, image_len, CHUNKSZ);
if (load != image_start) {
memmove_wd ((void *)load,
(void *)image_start, image_len, CHUNKSZ);
}
}
*load_end = load + image_len;
puts("OK\n");