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, 35 deletions

diff --git a/arch/avr32/mach-at32ap/clock.h b/arch/avr32/mach-at32ap/clock.h
deleted file mode 100644
index 4c7ebbdc6dfa..000000000000
--- a/arch/avr32/mach-at32ap/clock.h
+++ /dev/null
@@ -1,35 +0,0 @@
-/*
- * Clock management for AT32AP CPUs
- *
- * Copyright (C) 2006 Atmel Corporation
- *
- * Based on arch/arm/mach-at91/clock.c
- *   Copyright (C) 2005 David Brownell
- *   Copyright (C) 2005 Ivan Kokshaysky
- *
- * 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.
- */
-#include <linux/clk.h>
-#include <linux/list.h>
-
-
-void at32_clk_register(struct clk *clk);
-
-struct clk {
-	struct list_head list;		/* linking element */
-	const char	*name;		/* Clock name/function */
-	struct device	*dev;		/* Device the clock is used by */
-	struct clk	*parent;	/* Parent clock, if any */
-	void		(*mode)(struct clk *clk, int enabled);
-	unsigned long	(*get_rate)(struct clk *clk);
-	long		(*set_rate)(struct clk *clk, unsigned long rate,
-				    int apply);
-	int		(*set_parent)(struct clk *clk, struct clk *parent);
-	u16		users;		/* Enabled if non-zero */
-	u16		index;		/* Sibling index */
-};
-
-unsigned long pba_clk_get_rate(struct clk *clk);
-void pba_clk_mode(struct clk *clk, int enabled);