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, 49 deletions

diff --git a/arch/blackfin/include/asm/io.h b/arch/blackfin/include/asm/io.h
deleted file mode 100644
index 6abebe8..0000000
--- a/arch/blackfin/include/asm/io.h
+++ /dev/null
@@ -1,49 +0,0 @@
-/*
- * Copyright 2004-2010 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#ifndef _BFIN_IO_H
-#define _BFIN_IO_H
-
-#include <linux/compiler.h>
-#include <linux/types.h>
-#include <asm/byteorder.h>
-#include <asm/def_LPBlackfin.h>
-
-#define __raw_readb bfin_read8
-#define __raw_readw bfin_read16
-#define __raw_readl bfin_read32
-#define __raw_writeb(val, addr) bfin_write8(addr, val)
-#define __raw_writew(val, addr) bfin_write16(addr, val)
-#define __raw_writel(val, addr) bfin_write32(addr, val)
-
-extern void outsb(unsigned long port, const void *addr, unsigned long count);
-extern void outsw(unsigned long port, const void *addr, unsigned long count);
-extern void outsw_8(unsigned long port, const void *addr, unsigned long count);
-extern void outsl(unsigned long port, const void *addr, unsigned long count);
-#define outsb outsb
-#define outsw outsw
-#define outsl outsl
-
-extern void insb(unsigned long port, void *addr, unsigned long count);
-extern void insw(unsigned long port, void *addr, unsigned long count);
-extern void insw_8(unsigned long port, void *addr, unsigned long count);
-extern void insl(unsigned long port, void *addr, unsigned long count);
-extern void insl_16(unsigned long port, void *addr, unsigned long count);
-#define insb insb
-#define insw insw
-#define insl insl
-
-/**
- * I/O write barrier
- *
- * Ensure ordering of I/O space writes. This will make sure that writes
- * following the barrier will arrive after all previous writes.
- */
-#define mmiowb() do { SSYNC(); wmb(); } while (0)
-
-#include <asm-generic/io.h>
-
-#endif