arch: remove frv port

The Fujitsu FRV kernel port has been around for a long time, but has not
seen regular updates in several years and instead was marked 'Orphaned'
in 2016 by long-time maintainer David Howells.

The SoC product line apparently is apparently still around in the form
of the Socionext Milbeaut image processor, but this one no longer uses
the FRV CPU cores.

This removes all FRV specific files from the kernel.

Link: http://www.socionext.com/en/products/assp/milbeaut/
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 147 deletions

diff --git a/arch/frv/kernel/irq-mb93493.c b/arch/frv/kernel/irq-mb93493.c
deleted file mode 100644
index 8ca5aa4ff595..000000000000
--- a/arch/frv/kernel/irq-mb93493.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/* irq-mb93493.c: MB93493 companion chip interrupt handler
- *
- * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <linux/ptrace.h>
-#include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/sched.h>
-#include <linux/ioport.h>
-#include <linux/interrupt.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/bitops.h>
-
-#include <asm/io.h>
-#include <asm/delay.h>
-#include <asm/irq.h>
-#include <asm/irc-regs.h>
-#include <asm/mb93493-irqs.h>
-#include <asm/mb93493-regs.h>
-
-#define IRQ_ROUTE_ONE(X) (X##_ROUTE << (X - IRQ_BASE_MB93493))
-
-#define IRQ_ROUTING					\
-	(IRQ_ROUTE_ONE(IRQ_MB93493_VDC)		|	\
-	 IRQ_ROUTE_ONE(IRQ_MB93493_VCC)		|	\
-	 IRQ_ROUTE_ONE(IRQ_MB93493_AUDIO_OUT)	|	\
-	 IRQ_ROUTE_ONE(IRQ_MB93493_I2C_0)	|	\
-	 IRQ_ROUTE_ONE(IRQ_MB93493_I2C_1)	|	\
-	 IRQ_ROUTE_ONE(IRQ_MB93493_USB)		|	\
-	 IRQ_ROUTE_ONE(IRQ_MB93493_LOCAL_BUS)	|	\
-	 IRQ_ROUTE_ONE(IRQ_MB93493_PCMCIA)	|	\
-	 IRQ_ROUTE_ONE(IRQ_MB93493_GPIO)	|	\
-	 IRQ_ROUTE_ONE(IRQ_MB93493_AUDIO_IN))
-
-/*
- * daughter board PIC operations
- * - there is no way to ACK interrupts in the MB93493 chip
- */
-static void frv_mb93493_mask(struct irq_data *d)
-{
-	uint32_t iqsr;
-	volatile void *piqsr;
-
-	if (IRQ_ROUTING & (1 << (d->irq - IRQ_BASE_MB93493)))
-		piqsr = __addr_MB93493_IQSR(1);
-	else
-		piqsr = __addr_MB93493_IQSR(0);
-
-	iqsr = readl(piqsr);
-	iqsr &= ~(1 << (d->irq - IRQ_BASE_MB93493 + 16));
-	writel(iqsr, piqsr);
-}
-
-static void frv_mb93493_ack(struct irq_data *d)
-{
-}
-
-static void frv_mb93493_unmask(struct irq_data *d)
-{
-	uint32_t iqsr;
-	volatile void *piqsr;
-
-	if (IRQ_ROUTING & (1 << (d->irq - IRQ_BASE_MB93493)))
-		piqsr = __addr_MB93493_IQSR(1);
-	else
-		piqsr = __addr_MB93493_IQSR(0);
-
-	iqsr = readl(piqsr);
-	iqsr |= 1 << (d->irq - IRQ_BASE_MB93493 + 16);
-	writel(iqsr, piqsr);
-}
-
-static struct irq_chip frv_mb93493_pic = {
-	.name		= "mb93093",
-	.irq_ack	= frv_mb93493_ack,
-	.irq_mask	= frv_mb93493_mask,
-	.irq_mask_ack	= frv_mb93493_mask,
-	.irq_unmask	= frv_mb93493_unmask,
-};
-
-/*
- * MB93493 PIC interrupt handler
- */
-static irqreturn_t mb93493_interrupt(int irq, void *_piqsr)
-{
-	volatile void *piqsr = _piqsr;
-	uint32_t iqsr;
-
-	iqsr = readl(piqsr);
-	iqsr = iqsr & (iqsr >> 16) & 0xffff;
-
-	/* poll all the triggered IRQs */
-	while (iqsr) {
-		int irq;
-
-		asm("scan %1,gr0,%0" : "=r"(irq) : "r"(iqsr));
-		irq = 31 - irq;
-		iqsr &= ~(1 << irq);
-
-		generic_handle_irq(IRQ_BASE_MB93493 + irq);
-	}
-
-	return IRQ_HANDLED;
-}
-
-/*
- * define an interrupt action for each MB93493 PIC output
- * - use dev_id to indicate the MB93493 PIC input to output mappings
- */
-static struct irqaction mb93493_irq[2]  = {
-	[0] = {
-		.handler	= mb93493_interrupt,
-		.flags		= IRQF_SHARED,
-		.name		= "mb93493.0",
-		.dev_id		= (void *) __addr_MB93493_IQSR(0),
-	},
-	[1] = {
-		.handler	= mb93493_interrupt,
-		.flags		= IRQF_SHARED,
-		.name		= "mb93493.1",
-		.dev_id		= (void *) __addr_MB93493_IQSR(1),
-	}
-};
-
-/*
- * initialise the motherboard MB93493's PIC
- */
-void __init mb93493_init(void)
-{
-	int irq;
-
-	for (irq = IRQ_BASE_MB93493 + 0; irq <= IRQ_BASE_MB93493 + 10; irq++)
-		irq_set_chip_and_handler(irq, &frv_mb93493_pic,
-					 handle_edge_irq);
-
-	/* the MB93493 drives external IRQ inputs on the CPU PIC */
-	setup_irq(IRQ_CPU_MB93493_0, &mb93493_irq[0]);
-	setup_irq(IRQ_CPU_MB93493_1, &mb93493_irq[1]);
-}