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, 62 deletions

diff --git a/arch/blackfin/include/asm/flat.h b/arch/blackfin/include/asm/flat.h
deleted file mode 100644
index f1d6ba7afbf2..000000000000
--- a/arch/blackfin/include/asm/flat.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * uClinux flat-format executables
- *
- * Copyright 2003-2009 Analog Devices Inc.
- *
- * Licensed under the GPL-2
- */
-
-#ifndef __BLACKFIN_FLAT_H__
-#define __BLACKFIN_FLAT_H__
-
-#include <asm/unaligned.h>
-
-#define	flat_argvp_envp_on_stack()		0
-#define	flat_old_ram_flag(flags)		(flags)
-
-extern unsigned long bfin_get_addr_from_rp (u32 *ptr, u32 relval,
-					u32 flags, u32 *persistent);
-
-extern void bfin_put_addr_at_rp(u32 *ptr, u32 addr, u32 relval);
-
-/* The amount by which a relocation can exceed the program image limits
-   without being regarded as an error.  */
-
-#define	flat_reloc_valid(reloc, size)	((reloc) <= (size))
-
-static inline int flat_get_addr_from_rp(u32 __user *rp, u32 relval, u32 flags,
-					u32 *addr, u32 *persistent)
-{
-	*addr = bfin_get_addr_from_rp(rp, relval, flags, persistent);
-	return 0;
-}
-
-static inline int flat_put_addr_at_rp(u32 __user *rp, u32 val, u32 relval)
-{
-	bfin_put_addr_at_rp(rp, val, relval);
-	return 0;
-}
-
-/* Convert a relocation entry into an address.  */
-static inline unsigned long
-flat_get_relocate_addr (unsigned long relval)
-{
-	return relval & 0x03ffffff; /* Mask out top 6 bits */
-}
-
-static inline int flat_set_persistent(u32 relval, u32 *persistent)
-{
-	int type = (relval >> 26) & 7;
-	if (type == 3) {
-		*persistent = relval << 16;
-		return 1;
-	}
-	return 0;
-}
-
-static inline int flat_addr_absolute(unsigned long relval)
-{
-	return (relval & (1 << 29)) != 0;
-}
-
-#endif				/* __BLACKFIN_FLAT_H__ */