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