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, 30 deletions

diff --git a/arch/blackfin/include/asm/fixed_code.h b/arch/blackfin/include/asm/fixed_code.h
deleted file mode 100644
index bc330f06207b..000000000000
--- a/arch/blackfin/include/asm/fixed_code.h
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * This file defines the fixed addresses where userspace programs
- * can find atomic code sequences.
- *
- * Copyright 2007-2008 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-#ifndef __BFIN_ASM_FIXED_CODE_H__
-#define __BFIN_ASM_FIXED_CODE_H__
-
-#include <uapi/asm/fixed_code.h>
-
-#ifndef __ASSEMBLY__
-#include <linux/linkage.h>
-#include <linux/ptrace.h>
-extern asmlinkage void finish_atomic_sections(struct pt_regs *regs);
-extern char fixed_code_start;
-extern char fixed_code_end;
-extern int atomic_xchg32(void);
-extern int atomic_cas32(void);
-extern int atomic_add32(void);
-extern int atomic_sub32(void);
-extern int atomic_ior32(void);
-extern int atomic_and32(void);
-extern int atomic_xor32(void);
-extern void safe_user_instruction(void);
-extern void sigreturn_stub(void);
-#endif
-#endif