Coding Style cleanup: replace leading SPACEs by TABs

[karo-tx-uboot.git] / arch / arm / lib / relocate.S

diff --git a/arch/arm/lib/relocate.S b/arch/arm/lib/relocate.S
index 949b9e8025b994cb8e6a9d85e63a920387e11ba7..803525156314e2b4b59a73d296965f773095041a 100644 (file)
--- a/arch/arm/lib/relocate.S
+++ b/arch/arm/lib/relocate.S
@@ -3,23 +3,7 @@
  *
  *  Copyright (c) 2013  Albert ARIBAUD <albert.u.boot@aribaud.net>
  *
- * See file CREDITS for list of people who contributed to this
- * project.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License as
- * published by the Free Software Foundation; either version 2 of
- * the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
- * MA 02111-1307 USA
+ * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <linux/linkage.h>
@@ -38,7 +22,7 @@
 
 ENTRY(relocate_code)
        ldr     r1, =__image_copy_start /* r1 <- SRC &__image_copy_start */
-       subs    r9, r0, r1              /* r9 <- relocation offset */
+       subs    r4, r0, r1              /* r4 <- relocation offset */
        beq     relocate_done           /* skip relocation */
        ldr     r2, =__image_copy_end   /* r2 <- SRC &__image_copy_end */
 
@@ -60,9 +44,9 @@ fixloop:
        bne     fixnext
 
        /* relative fix: increase location by offset */
-       add     r0, r0, r9
+       add     r0, r0, r4
        ldr     r1, [r0]
-       add     r1, r1, r9
+       add     r1, r1, r4
        str     r1, [r0]
 fixnext:
        cmp     r2, r3
@@ -70,12 +54,21 @@ fixnext:
 
 relocate_done:
 
+#ifdef __XSCALE__
+       /*
+        * On xscale, icache must be invalidated and write buffers drained,
+        * even with cache disabled - 4.2.7 of xscale core developer's manual
+        */
+       mcr     p15, 0, r0, c7, c7, 0   /* invalidate icache */
+       mcr     p15, 0, r0, c7, c10, 4  /* drain write buffer */
+#endif
+
        /* ARMv4- don't know bx lr but the assembler fails to see that */
 
 #ifdef __ARM_ARCH_4__
-        mov        pc, lr
+       mov        pc, lr
 #else
-        bx        lr
+       bx        lr
 #endif
 
 ENDPROC(relocate_code)