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, 31 deletions

diff --git a/arch/blackfin/lib/umulsi3_highpart.S b/arch/blackfin/lib/umulsi3_highpart.S
deleted file mode 100644
index 0dcace96e4e7..000000000000
--- a/arch/blackfin/lib/umulsi3_highpart.S
+++ /dev/null
@@ -1,31 +0,0 @@
-/*
- * Copyright 2007 Analog Devices Inc.
- *
- * Licensed under the Clear BSD license or the GPL-2 (or later)
- */
-
-.align 2
-.global ___umulsi3_highpart;
-.type ___umulsi3_highpart, STT_FUNC;
-
-#ifdef CONFIG_ARITHMETIC_OPS_L1
-.section .l1.text
-#else
-.text
-#endif
-
-___umulsi3_highpart:
-	R2 = R1.H * R0.H, R3 = R1.L * R0.H (FU);
-	R0 = R1.L * R0.L, R1 = R1.H * R0.L (FU);
-	R0 >>= 16;
-	/* Unsigned multiplication has the nice property that we can
-	   ignore carry on this first addition.  */
-	R0 = R0 + R3;
-	R0 = R0 + R1;
-	cc = ac0;
-	R1 = cc;
-	R1 = PACK(R1.l,R0.h);
-	R0 = R1 + R2;
-	RTS;
-
-.size ___umulsi3_highpart, .-___umulsi3_highpart