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, 73 deletions

diff --git a/arch/blackfin/include/asm/pda.h b/arch/blackfin/include/asm/pda.h
deleted file mode 100644
index 68d6f6618f2a..000000000000
--- a/arch/blackfin/include/asm/pda.h
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * Copyright 2007-2009 Analog Devices Inc.
- *                         Philippe Gerum <rpm@xenomai.org>
- *
- * Licensed under the GPL-2 or later.
- */
-
-#ifndef _ASM_BLACKFIN_PDA_H
-#define _ASM_BLACKFIN_PDA_H
-
-#include <mach/anomaly.h>
-
-#ifndef __ASSEMBLY__
-
-struct blackfin_pda {			/* Per-processor Data Area */
-#ifdef CONFIG_SMP
-	struct blackfin_pda *next;
-#endif
-
-	unsigned long syscfg;
-#ifdef CONFIG_SMP
-	unsigned long imask;		/* Current IMASK value */
-#endif
-
-	unsigned long *ipdt;		/* Start of switchable I-CPLB table */
-	unsigned long *ipdt_swapcount;	/* Number of swaps in ipdt */
-	unsigned long *dpdt;		/* Start of switchable D-CPLB table */
-	unsigned long *dpdt_swapcount;	/* Number of swaps in dpdt */
-
-	/*
-	 * Single instructions can have multiple faults, which
-	 * need to be handled by traps.c, in irq5. We store
-	 * the exception cause to ensure we don't miss a
-	 * double fault condition
-	 */
-	unsigned long ex_iptr;
-	unsigned long ex_optr;
-	unsigned long ex_buf[4];
-	unsigned long ex_imask;		/* Saved imask from exception */
-	unsigned long ex_ipend;		/* Saved IPEND from exception */
-	unsigned long *ex_stack;	/* Exception stack space */
-
-#ifdef ANOMALY_05000261
-	unsigned long last_cplb_fault_retx;
-#endif
-	unsigned long dcplb_fault_addr;
-	unsigned long icplb_fault_addr;
-	unsigned long retx;
-	unsigned long seqstat;
-	unsigned int __nmi_count;	/* number of times NMI asserted on this CPU */
-#ifdef CONFIG_DEBUG_DOUBLEFAULT
-	unsigned long dcplb_doublefault_addr;
-	unsigned long icplb_doublefault_addr;
-	unsigned long retx_doublefault;
-	unsigned long seqstat_doublefault;
-#endif
-};
-
-struct blackfin_initial_pda {
-	void *retx;
-#ifdef CONFIG_DEBUG_DOUBLEFAULT
-	void *dcplb_doublefault_addr;
-	void *icplb_doublefault_addr;
-	void *retx_doublefault;
-	unsigned seqstat_doublefault;
-#endif
-};
-
-extern struct blackfin_pda cpu_pda[];
-
-#endif	/* __ASSEMBLY__ */
-
-#endif /* _ASM_BLACKFIN_PDA_H */