CRIS: Drop support for the CRIS port

The port was added back in 2000 so it's no longer even a good source
of inspiration for newer ports (if it ever was)

The last SoC (ARTPEC-3) with a CRIS main CPU was launched in 2008.

Coupled with time and working developer board hardware being
in low supply, it's time to drop the port from Linux.

So long and thanks for all the fish!

Signed-off-by: Jesper Nilsson <jesper.nilsson@axis.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 72 deletions

diff --git a/arch/cris/kernel/irq.c b/arch/cris/kernel/irq.c
deleted file mode 100644
index 726cdf4bf2d8..000000000000
--- a/arch/cris/kernel/irq.c
+++ /dev/null
@@ -1,72 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- *
- *	linux/arch/cris/kernel/irq.c
- *
- *      Copyright (c) 2000,2007 Axis Communications AB
- *
- *      Authors: Bjorn Wesen (bjornw@axis.com)
- *
- * This file contains the code used by various IRQ handling routines:
- * asking for different IRQs should be done through these routines
- * instead of just grabbing them. Thus setups with different IRQ numbers
- * shouldn't result in any weird surprises, and installing new handlers
- * should be easier.
- *
- */
-
-/*
- * IRQs are in fact implemented a bit like signal handlers for the kernel.
- * Naturally it's not a 1:1 relation, but there are similarities.
- */
-
-#include <linux/module.h>
-#include <linux/ptrace.h>
-#include <linux/irq.h>
-#include <linux/sched/debug.h>
-
-#include <linux/kernel_stat.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/timex.h>
-#include <linux/random.h>
-#include <linux/init.h>
-#include <linux/seq_file.h>
-#include <linux/errno.h>
-#include <linux/spinlock.h>
-
-#include <asm/io.h>
-#include <arch/system.h>
-
-/* called by the assembler IRQ entry functions defined in irq.h
- * to dispatch the interrupts to registered handlers
- */
-
-asmlinkage void do_IRQ(int irq, struct pt_regs * regs)
-{
-	unsigned long sp;
-	struct pt_regs *old_regs;
-
-	trace_hardirqs_off();
-
-	old_regs = set_irq_regs(regs);
-	irq_enter();
-	sp = rdsp();
-	if (unlikely((sp & (PAGE_SIZE - 1)) < (PAGE_SIZE/8))) {
-		printk("do_IRQ: stack overflow: %lX\n", sp);
-		show_stack(NULL, (unsigned long *)sp);
-	}
-	generic_handle_irq(irq);
-	irq_exit();
-	set_irq_regs(old_regs);
-}
-
-void weird_irq(void)
-{
-	local_irq_disable();
-	printk("weird irq\n");
-	while(1);
-}
-