--- zzzz-none-000/linux-3.18.24/arch/mips/lib/csum_partial.S	2015-10-31 20:39:51.000000000 +0000
+++ rtl96-5690pro-762/linux-3.18.24/arch/mips/lib/csum_partial.S	2024-08-14 08:36:36.000000000 +0000
@@ -9,6 +9,9 @@
  * Copyright (C) 1999 Silicon Graphics, Inc.
  * Copyright (C) 2007  Maciej W. Rozycki
  * Copyright (C) 2014 Imagination Technologies Ltd.
+ *
+ * Modified for RLX processors
+ * Copyright (C) 2008-2014 Tony Wu (tonywu@realtek.com)
  */
 #include <linux/errno.h>
 #include <asm/asm.h>
@@ -427,6 +430,8 @@
 #define STREST	STOREL
 #define SHIFT_DISCARD SLLV
 #define SHIFT_DISCARD_REVERT SRLV
+#define SHIFT_START 0
+#define SHIFT_INC 8
 #else
 #define LDFIRST LOADL
 #define LDREST	LOADR
@@ -434,6 +439,8 @@
 #define STREST	STORER
 #define SHIFT_DISCARD SRLV
 #define SHIFT_DISCARD_REVERT SLLV
+#define SHIFT_START 8*(NBYTES-1)
+#define SHIFT_INC -8
 #endif
 
 #define FIRST(unit) ((unit)*NBYTES)
@@ -683,13 +690,6 @@
 	 nop
 .Lcopy_bytes\@:
 	/* 0 < len < NBYTES  */
-#ifdef CONFIG_CPU_LITTLE_ENDIAN
-#define SHIFT_START 0
-#define SHIFT_INC 8
-#else
-#define SHIFT_START 8*(NBYTES-1)
-#define SHIFT_INC -8
-#endif
 	move	t2, zero	# partial word
 	li	t3, SHIFT_START # shift
 /* use .Ll_exc_copy here to return correct sum on fault */