avr32: remove support for AVR32 architecture

This patch drops support for AVR32 architecture from the Linux kernel.

The AVR32 architecture is not keeping up with the development of the
kernel, and since it shares so much of the drivers with Atmel ARM SoC,
it is starting to hinder these drivers to develop swiftly.

Also, all AVR32 AP7 SoC processors are end of lifed from Atmel (now
Microchip).

Finally, the GCC toolchain is stuck at version 4.2.x, and has not
received any patches since the last release from Atmel;
4.2.4-atmel.1.1.3.avr32linux.1. When building kernel v4.10, this
toolchain is no longer able to properly link the network stack.

Haavard and I have came to the conclusion that we feel keeping AVR32 on
life support offers more obstacles for Atmel ARMs, than it gives joy to
AVR32 users. I also suspect there are very few AVR32 users left today,
if anybody at all.

Signed-off-by: Hans-Christian Noren Egtvedt <egtvedt@samfundet.no>
Signed-off-by: Håvard Skinnemoen <hskinnemoen@gmail.com>
Signed-off-by: Nicolas Ferre <nicolas.ferre@microchip.com>
Acked-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>

1 files changed, 0 insertions, 144 deletions

diff --git a/arch/avr32/include/asm/setup.h b/arch/avr32/include/asm/setup.h
deleted file mode 100644
index 73490ae0c476..000000000000
--- a/arch/avr32/include/asm/setup.h
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
- * Copyright (C) 2004-2006 Atmel Corporation
- *
- * Based on linux/include/asm-arm/setup.h
- *   Copyright (C) 1997-1999 Russell King
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-#ifndef __ASM_AVR32_SETUP_H__
-#define __ASM_AVR32_SETUP_H__
-
-#include <uapi/asm/setup.h>
-
-
-/* Magic number indicating that a tag table is present */
-#define ATAG_MAGIC	0xa2a25441
-
-#ifndef __ASSEMBLY__
-
-/*
- * Generic memory range, used by several tags.
- *
- *   addr is always physical.
- *   size is measured in bytes.
- *   next is for use by the OS, e.g. for grouping regions into
- *        linked lists.
- */
-struct tag_mem_range {
-	u32			addr;
-	u32			size;
-	struct tag_mem_range *	next;
-};
-
-/* The list ends with an ATAG_NONE node. */
-#define ATAG_NONE	0x00000000
-
-struct tag_header {
-	u32 size;
-	u32 tag;
-};
-
-/* The list must start with an ATAG_CORE node */
-#define ATAG_CORE	0x54410001
-
-struct tag_core {
-	u32 flags;
-	u32 pagesize;
-	u32 rootdev;
-};
-
-/* it is allowed to have multiple ATAG_MEM nodes */
-#define ATAG_MEM	0x54410002
-/* ATAG_MEM uses tag_mem_range */
-
-/* command line: \0 terminated string */
-#define ATAG_CMDLINE	0x54410003
-
-struct tag_cmdline {
-	char	cmdline[1];	/* this is the minimum size */
-};
-
-/* Ramdisk image (may be compressed) */
-#define ATAG_RDIMG	0x54410004
-/* ATAG_RDIMG uses tag_mem_range */
-
-/* Information about various clocks present in the system */
-#define ATAG_CLOCK	0x54410005
-
-struct tag_clock {
-	u32	clock_id;	/* Which clock are we talking about? */
-	u32	clock_flags;	/* Special features */
-	u64	clock_hz;	/* Clock speed in Hz */
-};
-
-/* The clock types we know about */
-#define CLOCK_BOOTCPU	0
-
-/* Memory reserved for the system (e.g. the bootloader) */
-#define ATAG_RSVD_MEM	0x54410006
-/* ATAG_RSVD_MEM uses tag_mem_range */
-
-/* Ethernet information */
-
-#define ATAG_ETHERNET	0x54410007
-
-struct tag_ethernet {
-	u8	mac_index;
-	u8	mii_phy_addr;
-	u8	hw_address[6];
-};
-
-#define ETH_INVALID_PHY	0xff
-
-/* board information */
-#define ATAG_BOARDINFO	0x54410008
-
-struct tag_boardinfo {
-	u32	board_number;
-};
-
-struct tag {
-	struct tag_header hdr;
-	union {
-		struct tag_core core;
-		struct tag_mem_range mem_range;
-		struct tag_cmdline cmdline;
-		struct tag_clock clock;
-		struct tag_ethernet ethernet;
-		struct tag_boardinfo boardinfo;
-	} u;
-};
-
-struct tagtable {
-	u32	tag;
-	int	(*parse)(struct tag *);
-};
-
-#define __tag __used __attribute__((__section__(".taglist.init")))
-#define __tagtable(tag, fn)						\
-	static struct tagtable __tagtable_##fn __tag = { tag, fn }
-
-#define tag_member_present(tag,member)					\
-	((unsigned long)(&((struct tag *)0L)->member + 1)		\
-	 <= (tag)->hdr.size * 4)
-
-#define tag_next(t)	((struct tag *)((u32 *)(t) + (t)->hdr.size))
-#define tag_size(type)	((sizeof(struct tag_header) + sizeof(struct type)) >> 2)
-
-#define for_each_tag(t,base)						\
-	for (t = base; t->hdr.size; t = tag_next(t))
-
-extern struct tag *bootloader_tags;
-
-extern resource_size_t fbmem_start;
-extern resource_size_t fbmem_size;
-extern u32 board_number;
-
-void setup_processor(void);
-
-#endif /* !__ASSEMBLY__ */
-
-#endif /* __ASM_AVR32_SETUP_H__ */