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