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, 70 deletions

diff --git a/arch/blackfin/include/asm/cache.h b/arch/blackfin/include/asm/cache.h
deleted file mode 100644
index 568885a2c286..000000000000
--- a/arch/blackfin/include/asm/cache.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright 2004-2009 Analog Devices Inc.
- *
- * Licensed under the GPL-2 or later.
- */
-
-#ifndef __ARCH_BLACKFIN_CACHE_H
-#define __ARCH_BLACKFIN_CACHE_H
-
-#include <linux/linkage.h>	/* for asmlinkage */
-
-/*
- * Bytes per L1 cache line
- * Blackfin loads 32 bytes for cache
- */
-#define L1_CACHE_SHIFT	5
-#define L1_CACHE_BYTES	(1 << L1_CACHE_SHIFT)
-#define SMP_CACHE_BYTES	L1_CACHE_BYTES
-
-#define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
-
-#ifdef CONFIG_SMP
-#define __cacheline_aligned
-#else
-#define ____cacheline_aligned
-
-/*
- * Put cacheline_aliged data to L1 data memory
- */
-#ifdef CONFIG_CACHELINE_ALIGNED_L1
-#define __cacheline_aligned				\
-	  __attribute__((__aligned__(L1_CACHE_BYTES),	\
-		__section__(".data_l1.cacheline_aligned")))
-#endif
-
-#endif
-
-/*
- * largest L1 which this arch supports
- */
-#define L1_CACHE_SHIFT_MAX	5
-
-#if defined(CONFIG_SMP) && \
-    !defined(CONFIG_BFIN_CACHE_COHERENT)
-# if defined(CONFIG_BFIN_EXTMEM_ICACHEABLE) || defined(CONFIG_BFIN_L2_ICACHEABLE)
-# define __ARCH_SYNC_CORE_ICACHE
-# endif
-# if defined(CONFIG_BFIN_EXTMEM_DCACHEABLE) || defined(CONFIG_BFIN_L2_DCACHEABLE)
-# define __ARCH_SYNC_CORE_DCACHE
-# endif
-#ifndef __ASSEMBLY__
-asmlinkage void __raw_smp_mark_barrier_asm(void);
-asmlinkage void __raw_smp_check_barrier_asm(void);
-
-static inline void smp_mark_barrier(void)
-{
-	__raw_smp_mark_barrier_asm();
-}
-static inline void smp_check_barrier(void)
-{
-	__raw_smp_check_barrier_asm();
-}
-
-void resync_core_dcache(void);
-void resync_core_icache(void);
-#endif
-#endif
-
-
-#endif