arch: remove blackfin port

The Analog Devices Blackfin port was added in 2007 and was rather
active for a while, but all work on it has come to a standstill
over time, as Analog have changed their product line-up.

Aaron Wu confirmed that the architecture port is no longer relevant,
and multiple people suggested removing blackfin independently because
of some of its oddities like a non-working SMP port, and the amount of
duplication between the chip variants, which cause extra work when
doing cross-architecture changes.

Link: https://docs.blackfin.uclinux.org/
Acked-by: Aaron Wu <Aaron.Wu@analog.com>
Acked-by: Bryan Wu <cooloney@gmail.com>
Cc: Steven Miao <realmz6@gmail.com>
Cc: Mike Frysinger <vapier@chromium.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 52 deletions

diff --git a/arch/blackfin/lib/strncmp.S b/arch/blackfin/lib/strncmp.S
deleted file mode 100644
index 3bfaedce893e..000000000000
--- a/arch/blackfin/lib/strncmp.S
+++ /dev/null
@@ -1,52 +0,0 @@
-/*
- * Copyright 2005-2010 Analog Devices Inc.
- *
- * Licensed under the Clear BSD license or the GPL-2 (or later)
- */
-
-#include <linux/linkage.h>
-
-/* void *strncpy(char *s1, const char *s2, size_t n);
- * R0 = address (dest)
- * R1 = address (src)
- * R2 = size (n)
- * Returns a pointer to the destination string dest
- */
-
-#ifdef CONFIG_STRNCMP_L1
-.section .l1.text
-#else
-.text
-#endif
-
-.align 2
-
-ENTRY(_strncmp)
-	CC = R2 == 0;
-	if CC JUMP 5f;
-
-	P0 = R0 ;       /* s1 */
-	P1 = R1 ;       /* s2 */
-1:
-	R0 = B[P0++] (Z);      /* get *s1 */
-	R1 = B[P1++] (Z);      /* get *s2 */
-	CC = R0 == R1;         /* compare a byte */
-	if ! cc jump 3f;       /* not equal, break out */
-	CC = R0;               /* at end of s1? */
-	if ! cc jump 4f;       /* yes, all done */
-	R2 += -1;              /* no, adjust count */
-	CC = R2 == 0;
-	if ! cc jump 1b (bp);  /* more to do, keep going */
-2:
-	R0 = 0;                /* strings are equal */
-	jump.s 4f;
-3:
-	R0 = R0 - R1;          /* *s1 - *s2 */
-4:
-	RTS;
-
-5:
-	R0 = 0;
-	RTS;
-
-ENDPROC(_strncmp)