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, 143 deletions

diff --git a/arch/m32r/include/asm/flat.h b/arch/m32r/include/asm/flat.h
deleted file mode 100644
index dfcb0e4eb256..000000000000
--- a/arch/m32r/include/asm/flat.h
+++ /dev/null
@@ -1,143 +0,0 @@
-/*
- * include/asm-m32r/flat.h
- *
- * uClinux flat-format executables
- *
- * Copyright (C) 2004  Kazuhiro Inaoka
- *
- * 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.
- */
-#ifndef __ASM_M32R_FLAT_H
-#define __ASM_M32R_FLAT_H
-
-#define	flat_argvp_envp_on_stack()		0
-#define	flat_old_ram_flag(flags)		(flags)
-#define	flat_set_persistent(relval, p)		0
-#define	flat_reloc_valid(reloc, size)		\
-	(((reloc) - textlen_for_m32r_lo16_data) <= (size))
-
-/* Convert a relocation entry into an address.  */
-static inline unsigned long
-flat_get_relocate_addr (unsigned long relval)
-{
-        return relval & 0x00ffffff; /* Mask out top 8-bits */
-}
-
-#define	flat_m32r_get_reloc_type(relval)	((relval) >> 24)
-
-#define M32R_SETH_OPCODE	0xd0c00000 /* SETH instruction code */
-
-#define FLAT_M32R_32		0x00	/* 32bits reloc */
-#define FLAT_M32R_24		0x01	/* unsigned 24bits reloc */
-#define FLAT_M32R_16		0x02	/* 16bits reloc */
-#define FLAT_M32R_LO16		0x03	/* signed low 16bits reloc (low()) */
-#define FLAT_M32R_LO16_DATA	0x04	/* signed low 16bits reloc (low())
-					   for a symbol in .data section */
-					/* High 16bits of an address used
-					   when the lower 16bbits are treated
-					   as unsigned.
-                                           To create SETH instruction only.
-					   0x1X: X means a number of register.
-					   0x10 - 0x3F are reserved. */
-#define FLAT_M32R_HI16_ULO	0x10	/* reloc for SETH Rn,#high(imm16) */
-					/* High 16bits of an address used
-					   when the lower 16bbits are treated
-					   as signed.
-                                           To create SETH instruction only.
-					   0x2X: X means a number of register.
-					   0x20 - 0x4F are reserved. */
-#define FLAT_M32R_HI16_SLO	0x20	/* reloc for SETH Rn,#shigh(imm16) */
-
-static unsigned long textlen_for_m32r_lo16_data = 0;
-
-static inline unsigned long m32r_flat_get_addr_from_rp (u32 *rp,
-                                                        u32 relval,
-						        u32 textlen)
-{
-        unsigned int reloc = flat_m32r_get_reloc_type (relval);
-	textlen_for_m32r_lo16_data = 0;
-	if (reloc & 0xf0) {
-		unsigned long addr = htonl(*rp);
-		switch (reloc & 0xf0)
-		{
-		case FLAT_M32R_HI16_ULO:
-		case FLAT_M32R_HI16_SLO:
-			if (addr == 0) {
-				/* put "seth Rn,#0x0" instead of 0 (addr). */
-				*rp = (M32R_SETH_OPCODE | ((reloc & 0x0f)<<24));
-			}
-			return addr;
-		default:
-			break;
-		}
-	} else {
-		switch (reloc)
-		{
-		case FLAT_M32R_LO16:
-			return htonl(*rp) & 0xFFFF;
-		case FLAT_M32R_LO16_DATA:
-                        /* FIXME: The return value will decrease by textlen
-			   at m32r_flat_put_addr_at_rp () */
-			textlen_for_m32r_lo16_data = textlen;
-			return (htonl(*rp) & 0xFFFF) + textlen;
-		case FLAT_M32R_16:
-			return htons(*(unsigned short *)rp) & 0xFFFF;
-		case FLAT_M32R_24:
-			return htonl(*rp) & 0xFFFFFF;
-		case FLAT_M32R_32:
-			return htonl(*rp);
-		default:
-			break;
-		}
-	}
-	return ~0;      /* bogus value */
-}
-
-static inline int flat_put_addr_at_rp(u32 *rp, u32 addr, u32 relval)
-{
-        unsigned int reloc = flat_m32r_get_reloc_type (relval);
-	if (reloc & 0xf0) {
-		unsigned long Rn = reloc & 0x0f; /* get a number of register */
-		Rn <<= 24; /* 0x0R000000 */
-		reloc &= 0xf0;
-		switch (reloc)
-		{
-		case FLAT_M32R_HI16_ULO: /* To create SETH Rn,#high(imm16) */
-			*rp = (M32R_SETH_OPCODE | Rn
-			       | ((addr >> 16) & 0xFFFF));
-			break;
-		case FLAT_M32R_HI16_SLO: /* To create SETH Rn,#shigh(imm16) */
-			*rp = (M32R_SETH_OPCODE | Rn
-			       | (((addr >> 16) + ((addr & 0x8000) ? 1 : 0))
-				  & 0xFFFF));
-			break;
-		}
-	} else {
-		switch (reloc) {
-		case FLAT_M32R_LO16_DATA:
-			addr -= textlen_for_m32r_lo16_data;
-			textlen_for_m32r_lo16_data = 0;
-		case FLAT_M32R_LO16:
-			*rp = (htonl(*rp) & 0xFFFF0000) | (addr & 0xFFFF);
-			break;
-		case FLAT_M32R_16:
-			*(unsigned short *)rp = addr & 0xFFFF;
-			break;
-		case FLAT_M32R_24:
-			*rp = (htonl(*rp) & 0xFF000000) | (addr & 0xFFFFFF);
-			break;
-		case FLAT_M32R_32:
-			*rp = addr;
-			break;
-		}
-	}
-	return 0;
-}
-
-// kludge - text_len is a local variable in the only user.
-#define flat_get_addr_from_rp(rp, relval, flags, addr, persistent) \
-	(m32r_flat_get_addr_from_rp(rp, relval, text_len), 0)
-
-#endif /* __ASM_M32R_FLAT_H */