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, 73 deletions

diff --git a/arch/m32r/include/asm/cacheflush.h b/arch/m32r/include/asm/cacheflush.h
deleted file mode 100644
index 5ad2a3045483..000000000000
--- a/arch/m32r/include/asm/cacheflush.h
+++ /dev/null
@@ -1,73 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_M32R_CACHEFLUSH_H
-#define _ASM_M32R_CACHEFLUSH_H
-
-#include <linux/mm.h>
-
-extern void _flush_cache_all(void);
-extern void _flush_cache_copyback_all(void);
-
-#if defined(CONFIG_CHIP_M32700) || defined(CONFIG_CHIP_OPSP) || defined(CONFIG_CHIP_M32104)
-#define flush_cache_all()			do { } while (0)
-#define flush_cache_mm(mm)			do { } while (0)
-#define flush_cache_dup_mm(mm)			do { } while (0)
-#define flush_cache_range(vma, start, end)	do { } while (0)
-#define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)
-#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
-#define flush_dcache_page(page)			do { } while (0)
-#define flush_dcache_mmap_lock(mapping)		do { } while (0)
-#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
-#ifndef CONFIG_SMP
-#define flush_icache_range(start, end)		_flush_cache_copyback_all()
-#define flush_icache_page(vma,pg)		_flush_cache_copyback_all()
-#define flush_icache_user_range(vma,pg,adr,len)	_flush_cache_copyback_all()
-#define flush_cache_sigtramp(addr)		_flush_cache_copyback_all()
-#else	/* CONFIG_SMP */
-extern void smp_flush_cache_all(void);
-#define flush_icache_range(start, end)		smp_flush_cache_all()
-#define flush_icache_page(vma,pg)		smp_flush_cache_all()
-#define flush_icache_user_range(vma,pg,adr,len)	smp_flush_cache_all()
-#define flush_cache_sigtramp(addr)		_flush_cache_copyback_all()
-#endif	/* CONFIG_SMP */
-#elif defined(CONFIG_CHIP_M32102)
-#define flush_cache_all()			do { } while (0)
-#define flush_cache_mm(mm)			do { } while (0)
-#define flush_cache_dup_mm(mm)			do { } while (0)
-#define flush_cache_range(vma, start, end)	do { } while (0)
-#define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)
-#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
-#define flush_dcache_page(page)			do { } while (0)
-#define flush_dcache_mmap_lock(mapping)		do { } while (0)
-#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
-#define flush_icache_range(start, end)		_flush_cache_all()
-#define flush_icache_page(vma,pg)		_flush_cache_all()
-#define flush_icache_user_range(vma,pg,adr,len)	_flush_cache_all()
-#define flush_cache_sigtramp(addr)		_flush_cache_all()
-#else
-#define flush_cache_all()			do { } while (0)
-#define flush_cache_mm(mm)			do { } while (0)
-#define flush_cache_dup_mm(mm)			do { } while (0)
-#define flush_cache_range(vma, start, end)	do { } while (0)
-#define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)
-#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
-#define flush_dcache_page(page)			do { } while (0)
-#define flush_dcache_mmap_lock(mapping)		do { } while (0)
-#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
-#define flush_icache_range(start, end)		do { } while (0)
-#define flush_icache_page(vma,pg)		do { } while (0)
-#define flush_icache_user_range(vma,pg,adr,len)	do { } while (0)
-#define flush_cache_sigtramp(addr)		do { } while (0)
-#endif	/* CONFIG_CHIP_* */
-
-#define flush_cache_vmap(start, end)	do { } while (0)
-#define flush_cache_vunmap(start, end)	do { } while (0)
-
-#define copy_to_user_page(vma, page, vaddr, dst, src, len)	\
-do {								\
-	memcpy(dst, src, len);					\
-	flush_icache_user_range(vma, page, vaddr, len);		\
-} while (0)
-#define copy_from_user_page(vma, page, vaddr, dst, src, len)	\
-	memcpy(dst, src, len)
-
-#endif /* _ASM_M32R_CACHEFLUSH_H */