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 <[email protected]>
Signed-off-by: Arnd Bergmann <[email protected]>

1 files changed, 0 insertions, 118 deletions

diff --git a/arch/m32r/lib/strlen.S b/arch/m32r/lib/strlen.S
deleted file mode 100644
index 41c77e387593..000000000000
--- a/arch/m32r/lib/strlen.S
+++ /dev/null
@@ -1,118 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- *  linux/arch/m32r/strlen.S --  strlen code.
- *
- *  Copyright (C) 2001  Hirokazu Takata
- *
- *  size_t strlen(const char *s);
- *
- */
-
-#include <linux/linkage.h>
-#include <asm/assembler.h>
-
-#ifdef CONFIG_ISA_DUAL_ISSUE
-
-	.text
-ENTRY(strlen)
-	mv	r6, r0		    ||	ldi	r2, #0
-	and3	r0, r0, #3
-	bnez	r0, strlen_byte
-;
-strlen_word:
-	ld	r0, @r6+
-;
-	seth	r5, #high(0x01010101)
-	or3	r5, r5, #low(0x01010101)
-	sll3	r7, r5, #7
-strlen_word_loop:
-	ld	r1, @r6+	    ||	not	r4, r0
-	sub	r0, r5		    ||	and	r4, r7
-	and	r4, r0
-	bnez	r4, strlen_last_bytes
-	ld	r0, @r6+	    ||	not	r4, r1
-	sub	r1, r5		    ||	and	r4, r7
-	and	r4, r1		    ||	addi	r2, #4
-	bnez	r4, strlen_last_bytes
-	addi	r2, #4		    ||	bra.s	strlen_word_loop
-
-	; NOTE: If a null char. exists, return 0.
-	; if ((x - 0x01010101) & ~x & 0x80808080)
-	;     return 0;
-;
-strlen_byte:
-	ldb	r1, @r6		    ||	addi	r6, #1
-	beqz	r1, strlen_exit
-	addi	r2, #1		    ||	bra.s	strlen_byte
-;
-strlen_last_bytes:
-	ldi	r0, #4		    ||	addi	r6, #-8
-;
-strlen_byte_loop:
-	ldb	r1, @r6		    ||	addi	r6, #1
-	addi	r0, #-1		    ||  cmpz	r1
-	bc.s	strlen_exit	    ||  cmpz	r0
-	addi	r2, #1		    ||	bnc.s	strlen_byte_loop
-;
-strlen_exit:
-	mv	r0, r2		    ||	jmp	r14
-
-#else /* not CONFIG_ISA_DUAL_ISSUE */
-
-	.text
-ENTRY(strlen)
-	mv	r6, r0
-	ldi	r2, #0
-	and3	r0, r0, #3
-	bnez	r0, strlen_byte
-;
-strlen_word:
-	ld	r0, @r6+
-;
-	seth	r5, #high(0x01010101)
-	or3	r5, r5, #low(0x01010101)
-	sll3	r7, r5, #7
-strlen_word_loop:
-	ld	r1, @r6+
-	not	r4, r0		; NOTE: If a null char. exists, return 0.
-	sub	r0, r5		; if ((x - 0x01010101) & ~x & 0x80808080)
-	and	r4, r7		;     return 0;
-	and	r4, r0
-	bnez	r4, strlen_last_bytes
-	addi	r2, #4
-;
-	ld	r0, @r6+
-	not	r4, r1		; NOTE: If a null char. exists, return 0.
-	sub	r1, r5		; if ((x - 0x01010101) & ~x & 0x80808080)
-	and	r4, r7		;     return 0;
-	and	r4, r1
-	bnez	r4, strlen_last_bytes
-	addi	r2, #4
-	bra	strlen_word_loop
-;
-strlen_byte:
-	ldb	r1, @r6
-	addi	r6, #1
-	beqz	r1, strlen_exit
-	addi	r2, #1
-	bra	strlen_byte
-;
-strlen_last_bytes:
-	ldi	r0, #4
-	addi	r6, #-8
-;
-strlen_byte_loop:
-	ldb	r1, @r6
-	addi	r6, #1
-	addi	r0, #-1
-	beqz	r1, strlen_exit
-	addi	r2, #1
-	bnez	r0, strlen_byte_loop
-;
-strlen_exit:
-	mv	r0, r2
-	jmp	r14
-
-#endif /* not CONFIG_ISA_DUAL_ISSUE */
-
-	.end