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, 111 deletions

diff --git a/arch/m32r/mm/ioremap.c b/arch/m32r/mm/ioremap.c
deleted file mode 100644
index 5152c4e6ac80..000000000000
--- a/arch/m32r/mm/ioremap.c
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- *  linux/arch/m32r/mm/ioremap.c
- *
- *  Copyright (c) 2001, 2002  Hiroyuki Kondo
- *
- *  Taken from mips version.
- *    (C) Copyright 1995 1996 Linus Torvalds
- *    (C) Copyright 2001 Ralf Baechle
- */
-
-/*
- * This file is subject to the terms and conditions of the GNU General Public
- * License.  See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- */
-
-#include <linux/module.h>
-#include <asm/addrspace.h>
-#include <asm/byteorder.h>
-
-#include <linux/vmalloc.h>
-#include <linux/io.h>
-#include <asm/pgalloc.h>
-
-/*
- * Generic mapping function (not visible outside):
- */
-
-/*
- * Remap an arbitrary physical address space into the kernel virtual
- * address space. Needed when the kernel wants to access high addresses
- * directly.
- *
- * NOTE! We need to allow non-page-aligned mappings too: we will obviously
- * have to convert them into an offset in a page-aligned mapping, but the
- * caller shouldn't need to know that small detail.
- */
-
-#define IS_LOW512(addr) (!((unsigned long)(addr) & ~0x1fffffffUL))
-
-void __iomem *
-__ioremap(unsigned long phys_addr, unsigned long size, unsigned long flags)
-{
-	void __iomem * addr;
-	struct vm_struct * area;
-	unsigned long offset, last_addr;
-	pgprot_t pgprot;
-
-	/* Don't allow wraparound or zero size */
-	last_addr = phys_addr + size - 1;
-	if (!size || last_addr < phys_addr)
-		return NULL;
-
-	/*
-	 * Map objects in the low 512mb of address space using KSEG1, otherwise
-	 * map using page tables.
-	 */
-	if (IS_LOW512(phys_addr) && IS_LOW512(phys_addr + size - 1))
-		return (void *) KSEG1ADDR(phys_addr);
-
-	/*
-	 * Don't allow anybody to remap normal RAM that we're using..
-	 */
-	if (phys_addr < virt_to_phys(high_memory)) {
-		char *t_addr, *t_end;
-		struct page *page;
-
-		t_addr = __va(phys_addr);
-		t_end = t_addr + (size - 1);
-
-		for(page = virt_to_page(t_addr); page <= virt_to_page(t_end); page++)
-			if(!PageReserved(page))
-				return NULL;
-	}
-
-	pgprot = __pgprot(_PAGE_GLOBAL | _PAGE_PRESENT | _PAGE_READ
-			  | _PAGE_WRITE | flags);
-
-	/*
-	 * Mappings have to be page-aligned
-	 */
-	offset = phys_addr & ~PAGE_MASK;
-	phys_addr &= PAGE_MASK;
-	size = PAGE_ALIGN(last_addr + 1) - phys_addr;
-
-	/*
-	 * Ok, go for it..
-	 */
-	area = get_vm_area(size, VM_IOREMAP);
-	if (!area)
-		return NULL;
-	area->phys_addr = phys_addr;
-	addr = (void __iomem *) area->addr;
-	if (ioremap_page_range((unsigned long)addr, (unsigned long)addr + size,
-			       phys_addr, pgprot)) {
-		vunmap((void __force *) addr);
-		return NULL;
-	}
-
-	return (void __iomem *) (offset + (char __iomem *)addr);
-}
-
-#define IS_KSEG1(addr) (((unsigned long)(addr) & ~0x1fffffffUL) == KSEG1)
-
-void iounmap(volatile void __iomem *addr)
-{
-	if (!IS_KSEG1(addr))
-		vfree((void *) (PAGE_MASK & (unsigned long) addr));
-}
-