avr32: Retire AVR32 for good

AVR32 is gone. It's already more than two years for no support in Buildroot,
even longer there is no support in GCC (last version is heavily patched 4.2.4).

Linux kernel v4.12 got rid of it (and v4.11 didn't build successfully).

There is no good point to keep this support in U-Boot either.

Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Heiko Schocher <hs@denx.de>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

1 files changed, 0 insertions, 112 deletions

diff --git a/arch/avr32/cpu/interrupts.c b/arch/avr32/cpu/interrupts.c
deleted file mode 100644
index de202207ce8..00000000000
--- a/arch/avr32/cpu/interrupts.c
+++ /dev/null
@@ -1,112 +0,0 @@
-/*
- * Copyright (C) 2004-2006 Atmel Corporation
- *
- * SPDX-License-Identifier:	GPL-2.0+
- */
-#include <common.h>
-#include <div64.h>
-
-#include <linux/errno.h>
-#include <asm/io.h>
-#include <asm/processor.h>
-#include <asm/sysreg.h>
-
-#include <asm/arch/hardware.h>
-
-#define HANDLER_MASK	0x00ffffff
-#define INTLEV_SHIFT	30
-#define INTLEV_MASK	0x00000003
-
-DECLARE_GLOBAL_DATA_PTR;
-
-/* Incremented whenever COUNT reaches 0xffffffff by timer_interrupt_handler */
-volatile unsigned long timer_overflow;
-
-/*
- * Instead of dividing by get_tbclk(), multiply by this constant and
- * right-shift the result by 32 bits.
- */
-static unsigned long tb_factor;
-
-unsigned long get_tbclk(void)
-{
-	return gd->arch.cpu_hz;
-}
-
-unsigned long long get_ticks(void)
-{
-	unsigned long lo, hi_now, hi_prev;
-
-	do {
-		hi_prev = timer_overflow;
-		lo = sysreg_read(COUNT);
-		hi_now = timer_overflow;
-	} while (hi_prev != hi_now);
-
-	return ((unsigned long long)hi_now << 32) | lo;
-}
-
-unsigned long get_timer(unsigned long base)
-{
-	u64 now = get_ticks();
-
-	now *= tb_factor;
-	return (unsigned long)(now >> 32) - base;
-}
-
-/*
- * For short delays only. It will overflow after a few seconds.
- */
-void __udelay(unsigned long usec)
-{
-	unsigned long cycles;
-	unsigned long base;
-	unsigned long now;
-
-	base = sysreg_read(COUNT);
-	cycles = ((usec * (get_tbclk() / 10000)) + 50) / 100;
-
-	do {
-		now = sysreg_read(COUNT);
-	} while ((now - base) < cycles);
-}
-
-static int set_interrupt_handler(unsigned int nr, void (*handler)(void),
-				 unsigned int priority)
-{
-	extern void _evba(void);
-	unsigned long intpr;
-	unsigned long handler_addr = (unsigned long)handler;
-
-	handler_addr -= (unsigned long)&_evba;
-
-	if ((handler_addr & HANDLER_MASK) != handler_addr
-	    || (priority & INTLEV_MASK) != priority)
-		return -EINVAL;
-
-	intpr = (handler_addr & HANDLER_MASK);
-	intpr |= (priority & INTLEV_MASK) << INTLEV_SHIFT;
-	writel(intpr, (void *)ATMEL_BASE_INTC + 4 * nr);
-
-	return 0;
-}
-
-int timer_init(void)
-{
-	extern void timer_interrupt_handler(void);
-	u64 tmp;
-
-	sysreg_write(COUNT, 0);
-
-	tmp = (u64)CONFIG_SYS_HZ << 32;
-	tmp += gd->arch.cpu_hz / 2;
-	do_div(tmp, gd->arch.cpu_hz);
-	tb_factor = (u32)tmp;
-
-	if (set_interrupt_handler(0, &timer_interrupt_handler, 3))
-		return -EINVAL;
-
-	/* For all practical purposes, this gives us an overflow interrupt */
-	sysreg_write(COMPARE, 0xffffffff);
-	return 0;
-}