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, 51 deletions

diff --git a/arch/blackfin/include/uapi/asm/swab.h b/arch/blackfin/include/uapi/asm/swab.h
deleted file mode 100644
index d3437933b95f..000000000000
--- a/arch/blackfin/include/uapi/asm/swab.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
-/*
- * Copyright 2009 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#ifndef _UAPI_BLACKFIN_SWAB_H
-#define _UAPI_BLACKFIN_SWAB_H
-
-#include <linux/types.h>
-#include <asm-generic/swab.h>
-
-#ifdef __GNUC__
-
-static __inline__ __attribute_const__ __u32 __arch_swahb32(__u32 xx)
-{
-	__u32 tmp;
-	__asm__("%1 = %0 >> 8 (V);\n\t"
-		"%0 = %0 << 8 (V);\n\t"
-		"%0 = %0 | %1;\n\t"
-		: "+d"(xx), "=&d"(tmp));
-	return xx;
-}
-#define __arch_swahb32 __arch_swahb32
-
-static __inline__ __attribute_const__ __u32 __arch_swahw32(__u32 xx)
-{
-	__u32 rv;
-	__asm__("%0 = PACK(%1.L, %1.H);\n\t": "=d"(rv): "d"(xx));
-	return rv;
-}
-#define __arch_swahw32 __arch_swahw32
-
-static __inline__ __attribute_const__ __u32 __arch_swab32(__u32 xx)
-{
-	return __arch_swahb32(__arch_swahw32(xx));
-}
-#define __arch_swab32 __arch_swab32
-
-static __inline__ __attribute_const__ __u16 __arch_swab16(__u16 xx)
-{
-	__u32 xw = xx;
-	__asm__("%0 <<= 8;\n	%0.L = %0.L + %0.H (NS);\n": "+d"(xw));
-	return (__u16)xw;
-}
-#define __arch_swab16 __arch_swab16
-
-#endif /* __GNUC__ */
-
-#endif /* _UAPI_BLACKFIN_SWAB_H */