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>

diff --git a/cpu/blackfin/start.S b/cpu/blackfin/start.S
index 9975a0c..6c5fef7 100644 (file)
--- a/cpu/blackfin/start.S
+++ b/cpu/blackfin/start.S
@@ -125,8 +125,9 @@ ENTRY(_start)
         */
        r6 = 1 (x);
 
-       /* Relocate from wherever are (FLASH/RAM/etc...) to the
-        * hardcoded monitor location in the end of RAM.
+       /* Relocate from wherever are (FLASH/RAM/etc...) to the hardcoded
+        * 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");
        call _get_pc;
@@ -135,27 +136,16 @@ ENTRY(_start)
        r2.h = .Loffset;
        r3.l = _start;
        r3.h = _start;
-       r1 = r2 - r3;
-
-       r0 = r0 - r1;
-
-       cc = r0 == r3;
+       r2 = r2 - r3;
+       r1 = r0 - r2;
+       cc = r1 == r3;
        if cc jump .Lnorelocate;
-
        r6 = 0 (x);
-       p1 = r0;
-
-       p2.l = LO(CONFIG_SYS_MONITOR_BASE);
-       p2.h = HI(CONFIG_SYS_MONITOR_BASE);
-
-       p3 = 0x04;
-       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;
+
+       r0 = r3;
+       r2.l = LO(CONFIG_SYS_MONITOR_LEN);
+       r2.h = HI(CONFIG_SYS_MONITOR_LEN);
+       call _memcpy_ASM;
 
        /* Initialize BSS section ... we know that memset() does not
         * use the BSS, so it is safe to call here.  The bootrom LDR