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, 179 deletions

diff --git a/arch/m32r/lib/memset.S b/arch/m32r/lib/memset.S
deleted file mode 100644
index e7f45e6c73f5..000000000000
--- a/arch/m32r/lib/memset.S
+++ /dev/null
@@ -1,179 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- *  linux/arch/m32r/lib/memset.S
- *
- *  Copyright (C) 2001,2002  Hiroyuki Kondo, and Hirokazu Takata
- *  Copyright (C) 2004  Hirokazu Takata
- *
- *  void *memset(void *dst, int val, int len);
- *
- *        dst: r0
- *        val: r1
- *        len: r2
- *        ret: r0
- *
- */
-
-	.text
-	.global	memset
-
-#ifdef CONFIG_ISA_DUAL_ISSUE
-
-	.align 4
-memset:
-	mv      r4, r0		    ||	cmpz	r2
-	jc	r14
-	cmpui	r2, #16
-	bnc	qword_align_check
-	cmpui	r2, #4
-	bc	byte_set
-word_align_check:			/* len >= 4 */
-	and3	r3, r4, #3
-	beqz	r3, word_set
-	addi	r3, #-4
-	neg	r3, r3			/* r3 = -(r3 - 4) */
-align_word:
-	stb	r1, @r4		    ||	addi	r4, #1
-	addi	r2, #-1		    ||	addi	r3, #-1
-	bnez	r3, align_word
-	cmpui	r2, #4
-	bc	byte_set
-word_set:
-	and3	r1, r1, #0x00ff		/* r1: abababab <-- ??????ab */
-	sll3	r3, r1, #8
-	or	r1, r3		    ||	addi	r4, #-4
-	sll3	r3, r1, #16
-	or	r1, r3		    ||	addi	r2, #-4
-word_set_loop:
-	st	r1, @+r4	    ||	addi	r2, #-4
-	bgtz	r2, word_set_loop
-	bnez	r2, byte_set_wrap
-	st	r1, @+r4
-	jmp	r14
-
-qword_align_check:			/* len >= 16 */
-	and3	r3, r4, #15
-	bnez	r3, word_align_check
-qword_set:
-	and3	r1, r1, #0x00ff		/* r1: abababab <-- ??????ab */
-	sll3	r3, r1, #8
-	or	r1, r3		    ||	addi	r4, #-4
-	sll3	r3, r1, #16
-	or	r1, r3		    ||	ldi	r5, #16
-qword_set_loop:
-	ld	r3, @(4,r4)		/* cache line allocate */
-	st	r1, @+r4	    ||	addi	r2, #-16
-	st	r1, @+r4	    ||	cmpu	r2, r5
-	st	r1, @+r4
-	st	r1, @+r4
-	bnc	qword_set_loop	    ||  cmpz	r2
-	jc	r14
-set_remainder:
-	cmpui	r2, #4
-	bc	byte_set_wrap1
-	addi	r2, #-4
-	bra	word_set_loop
-
-byte_set_wrap:
-	addi	r2, #4
-	cmpz	r2
-	jc	r14
-byte_set_wrap1:
-	addi	r4, #4
-#if defined(CONFIG_ISA_M32R2)
-byte_set:
-	addi	r2, #-1		    ||	stb	r1, @r4+
-	bnez	r2, byte_set
-#elif defined(CONFIG_ISA_M32R)
-byte_set:
-	addi	r2, #-1		    ||	stb	r1, @r4
-	addi	r4, #1
-	bnez	r2, byte_set
-#else
-#error unknown isa configuration
-#endif
-end_memset:
-	jmp	r14
-
-#else /* not CONFIG_ISA_DUAL_ISSUE */
-
-	.align 4
-memset:
-	mv      r4, r0
-	beqz	r2, end_memset
-	cmpui	r2, #16
-	bnc	qword_align_check
-	cmpui	r2, #4
-	bc	byte_set
-word_align_check:			/* len >= 4 */
-	and3	r3, r4, #3
-	beqz	r3, word_set
-	addi	r3, #-4
-	neg	r3, r3			/* r3 = -(r3 - 4) */
-align_word:
-	stb	r1, @r4
-	addi	r4, #1
-	addi	r2, #-1
-	addi	r3, #-1
-	bnez	r3, align_word
-	cmpui	r2, #4
-	bc	byte_set
-word_set:
-	and3	r1, r1, #0x00ff		/* r1: abababab <-- ??????ab */
-	sll3	r3, r1, #8
-	or	r1, r3
-	sll3	r3, r1, #16
-	or	r1, r3
-	addi	r2, #-4
-	addi	r4, #-4
-word_set_loop:
-	st	r1, @+r4
-	addi	r2, #-4
-	bgtz    r2, word_set_loop
-	bnez	r2, byte_set_wrap
-	st	r1, @+r4
-	jmp	r14
-
-qword_align_check:			/* len >= 16 */
-	and3	r3, r4, #15
-	bnez	r3, word_align_check
-qword_set:
-	and3	r1, r1, #0x00ff		/* r1: abababab <-- ??????ab */
-	sll3	r3, r1, #8
-	or	r1, r3
-	sll3	r3, r1, #16
-	or	r1, r3
-	addi	r4, #-4
-qword_set_loop:
-	ld	r3, @(4,r4)		/* cache line allocate */
-	addi	r2, #-16
-	st	r1, @+r4
-	st	r1, @+r4
-	cmpui	r2, #16
-	st	r1, @+r4
-	st	r1, @+r4
-	bnc	qword_set_loop
-	bnez	r2, set_remainder
-	jmp	r14
-set_remainder:
-	cmpui	r2, #4
-	bc	byte_set_wrap1
-	addi	r2, #-4
-	bra	word_set_loop
-
-byte_set_wrap:
-	addi	r2, #4
-	beqz	r2, end_memset
-byte_set_wrap1:
-	addi	r4, #4
-byte_set:
-	addi	r2, #-1
-	stb	r1, @r4
-	addi	r4, #1
-	bnez	r2, byte_set
-end_memset:
-	jmp	r14
-
-#endif /* not CONFIG_ISA_DUAL_ISSUE */
-
-	.end