V3s_Allwinner
/
uboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases 2 Wiki Activity

Blackfin: use common memcpy routine during init 

Rather than using a local custom memcpy function, just call the existing
optimized Blackfin version.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Mike Frysinger 2008-06-01 01:21:34 -04:00
parent 362c943347
commit dc2bfb0b58
1 changed files with 10 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

30
cpu/blackfin/start.S
View File

@ -125,8 +125,9 @@ ENTRY(_start)
*/ */
r6 = 1 (x); r6 = 1 (x);
/* Relocate from wherever are (FLASH/RAM/etc...) to the /* Relocate from wherever are (FLASH/RAM/etc...) to the hardcoded
* hardcoded monitor location in the end of RAM. * monitor location in the end of RAM. We know that memcpy() only
* uses registers, so it is safe to call here.
*/ */
serial_early_puts("Relocate"); serial_early_puts("Relocate");
call _get_pc; call _get_pc;
@ -135,27 +136,16 @@ ENTRY(_start)
r2.h = .Loffset; r2.h = .Loffset;
r3.l = _start; r3.l = _start;
r3.h = _start; r3.h = _start;
r1 = r2 - r3; r2 = r2 - r3;
r1 = r0 - r2;
r0 = r0 - r1; cc = r1 == r3;
cc = r0 == r3;
if cc jump .Lnorelocate; if cc jump .Lnorelocate;
r6 = 0 (x); r6 = 0 (x);
p1 = r0;
p2.l = LO(CONFIG_SYS_MONITOR_BASE); r0 = r3;
p2.h = HI(CONFIG_SYS_MONITOR_BASE); r2.l = LO(CONFIG_SYS_MONITOR_LEN);
r2.h = HI(CONFIG_SYS_MONITOR_LEN);
p3 = 0x04; call _memcpy_ASM;
p4.l = LO(CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN);
p4.h = HI(CONFIG_SYS_MONITOR_BASE + CONFIG_SYS_MONITOR_LEN);
.Lloop1:
r1 = [p1 ++ p3];
[p2 ++ p3] = r1;
cc=p2==p4;
if !cc jump .Lloop1;
/* Initialize BSS section ... we know that memset() does not /* Initialize BSS section ... we know that memset() does not
* use the BSS, so it is safe to call here. The bootrom LDR * use the BSS, so it is safe to call here. The bootrom LDR