arch: remove frv port

[sfrench/cifs-2.6.git] / arch / frv / kernel / irq-mb93093.c

diff --git a/arch/frv/kernel/irq-mb93093.c b/arch/frv/kernel/irq-mb93093.c
deleted file mode 100644 (file)
index 1f3015c..0000000
--- a/arch/frv/kernel/irq-mb93093.c
+++ /dev/null
@@ -1,129 +0,0 @@
-/* irq-mb93093.c: MB93093 FPGA interrupt handling
- *
- * 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>
-
-#define __reg16(ADDR) (*(volatile unsigned short *)(__region_CS2 + (ADDR)))
-
-#define __get_IMR()    ({ __reg16(0x0a); })
-#define __set_IMR(M)   do { __reg16(0x0a) = (M);  wmb(); } while(0)
-#define __get_IFR()    ({ __reg16(0x02); })
-#define __clr_IFR(M)   do { __reg16(0x02) = ~(M); wmb(); } while(0)
-
-/*
- * off-CPU FPGA PIC operations
- */
-static void frv_fpga_mask(struct irq_data *d)
-{
-       uint16_t imr = __get_IMR();
-
-       imr |= 1 << (d->irq - IRQ_BASE_FPGA);
-       __set_IMR(imr);
-}
-
-static void frv_fpga_ack(struct irq_data *d)
-{
-       __clr_IFR(1 << (d->irq - IRQ_BASE_FPGA));
-}
-
-static void frv_fpga_mask_ack(struct irq_data *d)
-{
-       uint16_t imr = __get_IMR();
-
-       imr |= 1 << (d->irq - IRQ_BASE_FPGA);
-       __set_IMR(imr);
-
-       __clr_IFR(1 << (d->irq - IRQ_BASE_FPGA));
-}
-
-static void frv_fpga_unmask(struct irq_data *d)
-{
-       uint16_t imr = __get_IMR();
-
-       imr &= ~(1 << (d->irq - IRQ_BASE_FPGA));
-
-       __set_IMR(imr);
-}
-
-static struct irq_chip frv_fpga_pic = {
-       .name           = "mb93093",
-       .irq_ack        = frv_fpga_ack,
-       .irq_mask       = frv_fpga_mask,
-       .irq_mask_ack   = frv_fpga_mask_ack,
-       .irq_unmask     = frv_fpga_unmask,
-};
-
-/*
- * FPGA PIC interrupt handler
- */
-static irqreturn_t fpga_interrupt(int irq, void *_mask)
-{
-       uint16_t imr, mask = (unsigned long) _mask;
-
-       imr = __get_IMR();
-       mask = mask & ~imr & __get_IFR();
-
-       /* poll all the triggered IRQs */
-       while (mask) {
-               int irq;
-
-               asm("scan %1,gr0,%0" : "=r"(irq) : "r"(mask));
-               irq = 31 - irq;
-               mask &= ~(1 << irq);
-
-               generic_handle_irq(IRQ_BASE_FPGA + irq);
-       }
-
-       return IRQ_HANDLED;
-}
-
-/*
- * define an interrupt action for each FPGA PIC output
- * - use dev_id to indicate the FPGA PIC input to output mappings
- */
-static struct irqaction fpga_irq[1]  = {
-       [0] = {
-               .handler        = fpga_interrupt,
-               .name           = "fpga.0",
-               .dev_id         = (void *) 0x0700UL,
-       }
-};
-
-/*
- * initialise the motherboard FPGA's PIC
- */
-void __init fpga_init(void)
-{
-       int irq;
-
-       /* all PIC inputs are all set to be edge triggered */
-       __set_IMR(0x0700);
-       __clr_IFR(0x0000);
-
-       for (irq = IRQ_BASE_FPGA + 8; irq <= IRQ_BASE_FPGA + 10; irq++)
-               irq_set_chip_and_handler(irq, &frv_fpga_pic, handle_edge_irq);
-
-       /* the FPGA drives external IRQ input #2 on the CPU PIC */
-       setup_irq(IRQ_CPU_EXTERNAL2, &fpga_irq[0]);
-}