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, 76 deletions

diff --git a/arch/m32r/include/asm/pgtable-2level.h b/arch/m32r/include/asm/pgtable-2level.h
deleted file mode 100644
index d7ab1e94e3cb..000000000000
--- a/arch/m32r/include/asm/pgtable-2level.h
+++ /dev/null
@@ -1,76 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_M32R_PGTABLE_2LEVEL_H
-#define _ASM_M32R_PGTABLE_2LEVEL_H
-#ifdef __KERNEL__
-
-/*
- * traditional M32R two-level paging structure:
- */
-
-#define PGDIR_SHIFT	22
-#define PTRS_PER_PGD	1024
-
-/*
- * the M32R is two-level, so we don't really have any
- * PMD directory physically.
- */
-#define __PAGETABLE_PMD_FOLDED
-#define PMD_SHIFT	22
-#define PTRS_PER_PMD	1
-
-#define PTRS_PER_PTE	1024
-
-#define pte_ERROR(e) \
-	printk("%s:%d: bad pte %08lx.\n", __FILE__, __LINE__, pte_val(e))
-#define pmd_ERROR(e) \
-	printk("%s:%d: bad pmd %08lx.\n", __FILE__, __LINE__, pmd_val(e))
-#define pgd_ERROR(e) \
-	printk("%s:%d: bad pgd %08lx.\n", __FILE__, __LINE__, pgd_val(e))
-
-/*
- * The "pgd_xxx()" functions here are trivial for a folded two-level
- * setup: the pgd is never bad, and a pmd always exists (as it's folded
- * into the pgd entry)
- */
-static inline int pgd_none(pgd_t pgd)	{ return 0; }
-static inline int pgd_bad(pgd_t pgd)	{ return 0; }
-static inline int pgd_present(pgd_t pgd)	{ return 1; }
-#define pgd_clear(xp)				do { } while (0)
-
-/*
- * Certain architectures need to do special things when PTEs
- * within a page table are directly modified.  Thus, the following
- * hook is made available.
- */
-#define set_pte(pteptr, pteval) (*(pteptr) = pteval)
-#define set_pte_at(mm,addr,ptep,pteval) set_pte(ptep,pteval)
-
-/*
- * (pmds are folded into pgds so this doesn't get actually called,
- * but the define is needed for a generic inline function.)
- */
-#define set_pmd(pmdptr, pmdval) (*(pmdptr) = pmdval)
-#define set_pgd(pgdptr, pgdval) (*(pgdptr) = pgdval)
-
-#define pgd_page_vaddr(pgd) \
-((unsigned long) __va(pgd_val(pgd) & PAGE_MASK))
-
-#ifndef CONFIG_DISCONTIGMEM
-#define pgd_page(pgd)	(mem_map + ((pgd_val(pgd) >> PAGE_SHIFT) - PFN_BASE))
-#endif /* !CONFIG_DISCONTIGMEM */
-
-static inline pmd_t *pmd_offset(pgd_t * dir, unsigned long address)
-{
-	return (pmd_t *) dir;
-}
-
-#define ptep_get_and_clear(mm,addr,xp)	__pte(xchg(&(xp)->pte, 0))
-#define pte_same(a, b)		(pte_val(a) == pte_val(b))
-#define pte_page(x)		pfn_to_page(pte_pfn(x))
-#define pte_none(x)		(!pte_val(x))
-#define pte_pfn(x)		(pte_val(x) >> PAGE_SHIFT)
-#define pfn_pte(pfn, prot)	__pte(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
-#define pfn_pmd(pfn, prot)	__pmd(((pfn) << PAGE_SHIFT) | pgprot_val(prot))
-
-#endif /* __KERNEL__ */
-#endif /* _ASM_M32R_PGTABLE_2LEVEL_H */