arch: remove m32r port

The Mitsubishi/Renesas m32r architecture has been around for many years,
but the Linux port has been obsolete for a very long time as well, with
the last significant updates done for linux-2.6.14.

While some m32r microcontrollers are still being marketed by Renesas,
those are apparently no longer possible to support, mainly due to the
lack of an external memory interface.

Hirokazu Takata was the maintainer until the architecture got marked
Orphaned in 2014.

Link: http://www.linux-m32r.org/
Link: https://www.renesas.com/en-eu/products/microcontrollers-microprocessors/m32r.html
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 93 deletions

diff --git a/arch/m32r/lib/memcpy.S b/arch/m32r/lib/memcpy.S
deleted file mode 100644
index 249da3e3358d..000000000000
--- a/arch/m32r/lib/memcpy.S
+++ /dev/null
@@ -1,93 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- *  linux/arch/m32r/lib/memcpy.S
- *
- *  Copyright (C) 2001  Hiroyuki Kondo, and Hirokazu Takata
- *  Copyright (C) 2004  Hirokazu Takata
- *
- *  void *memcopy(void *dst, const void *src, int n);
- *
- *        dst: r0
- *        src: r1
- *        n  : r2
- */
-
-	.text
-#include <linux/linkage.h>
-#include <asm/assembler.h>
-
-#ifdef CONFIG_ISA_DUAL_ISSUE
-
-	.text
-ENTRY(memcpy)
-memcopy:
-	mv	r4, r0		    ||	mv	r7, r0
-	or	r7, r1		    ||	cmpz	r2
-	jc	r14		    ||	cmpeq	r0, r1	; return if r2=0
-	jc	r14					; return if r0=r1
-
-	and3	r7, r7, #3
-	bnez	r7, byte_copy
-	srl3	r3, r2, #2
-	and3	r2, r2, #3
-	beqz	r3, byte_copy
-	addi	r4, #-4
-word_copy:
-	ld	r7, @r1+	    ||	addi	r3, #-1
-	st	r7, @+r4	    ||	cmpz	r2
-	bnez	r3, word_copy
-	addi	r4, #4		    ||	jc	r14	; return if r2=0
-#if defined(CONFIG_ISA_M32R2)
-byte_copy:
-	ldb	r7, @r1		    ||	addi	r1, #1
-	addi	r2, #-1		    ||	stb	r7, @r4+
-	bnez	r2, byte_copy
-#elif defined(CONFIG_ISA_M32R)
-byte_copy:
-	ldb	r7, @r1		    ||	addi	r1, #1
-	addi	r2, #-1		    ||	stb	r7, @r4
-	addi	r4, #1
-	bnez	r2, byte_copy
-#else
-#error unknown isa configuration
-#endif
-end_memcopy:
-	jmp	r14
-
-#else /* not CONFIG_ISA_DUAL_ISSUE */
-
-	.text
-ENTRY(memcpy)
-memcopy:
-	mv	r4, r0
-	mv	r7, r0
-	or	r7, r1
-	beq	r0, r1, end_memcopy
-	beqz	r2, end_memcopy
-
-	and3	r7, r7, #3
-	bnez	r7, byte_copy
-	srl3	r3, r2, #2
-	and3	r2, r2, #3
-	beqz	r3, byte_copy
-	addi	r4, #-4
-word_copy:
-	ld	r7, @r1+
-	addi	r3, #-1
-	st	r7, @+r4
-	bnez	r3, word_copy
-	beqz	r2, end_memcopy
-	addi	r4, #4
-byte_copy:
-	ldb	r7, @r1
-	addi	r1, #1
-	addi	r2, #-1
-	stb	r7, @r4
-	addi	r4, #1
-	bnez	r2, byte_copy
-end_memcopy:
-	jmp	r14
-
-#endif /* not CONFIG_ISA_DUAL_ISSUE */
-
-	.end