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authorAtsushi Nemoto <anemo@mba.ocn.ne.jp>2008-07-10 17:31:36 +0200
committerRalf Baechle <ralf@linux-mips.org>2008-07-15 19:44:35 +0200
commit22b1d707ffc99faebd86257ad19d5bb9fc624734 (patch)
tree9bd0bcd3878611d74db29e17f3c6e951f4656e61 /arch/mips/jmr3927/rbhma3100/irq.c
parent[MIPS] txx9: Make gpio_txx9 entirely spinlock-safe (diff)
downloadlinux-22b1d707ffc99faebd86257ad19d5bb9fc624734.tar.xz
linux-22b1d707ffc99faebd86257ad19d5bb9fc624734.zip
[MIPS] TXx9: Reorganize code
Move arch/mips/{jmr3927,tx4927,tx4938} into arch/mips/txx9/ tree. This will help more code sharing and maintainance. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/jmr3927/rbhma3100/irq.c')
-rw-r--r--arch/mips/jmr3927/rbhma3100/irq.c174
1 files changed, 0 insertions, 174 deletions
diff --git a/arch/mips/jmr3927/rbhma3100/irq.c b/arch/mips/jmr3927/rbhma3100/irq.c
deleted file mode 100644
index 3a47e8ce1196..000000000000
--- a/arch/mips/jmr3927/rbhma3100/irq.c
+++ /dev/null
@@ -1,174 +0,0 @@
-/*
- * Copyright 2001 MontaVista Software Inc.
- * Author: MontaVista Software, Inc.
- * ahennessy@mvista.com
- *
- * This file is subject to the terms and conditions of the GNU General Public
- * License. See the file "COPYING" in the main directory of this archive
- * for more details.
- *
- * Copyright (C) 2000-2001 Toshiba Corporation
- *
- * 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.
- *
- * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
- * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
- * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
- * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
- * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
- * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
- * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
- * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 675 Mass Ave, Cambridge, MA 02139, USA.
- */
-#include <linux/init.h>
-#include <linux/sched.h>
-#include <linux/types.h>
-#include <linux/interrupt.h>
-
-#include <asm/io.h>
-#include <asm/mipsregs.h>
-#include <asm/system.h>
-
-#include <asm/processor.h>
-#include <asm/jmr3927/jmr3927.h>
-
-#if JMR3927_IRQ_END > NR_IRQS
-#error JMR3927_IRQ_END > NR_IRQS
-#endif
-
-static unsigned char irc_level[TX3927_NUM_IR] = {
- 5, 5, 5, 5, 5, 5, /* INT[5:0] */
- 7, 7, /* SIO */
- 5, 5, 5, 0, 0, /* DMA, PIO, PCI */
- 6, 6, 6 /* TMR */
-};
-
-/*
- * CP0_STATUS is a thread's resource (saved/restored on context switch).
- * So disable_irq/enable_irq MUST handle IOC/IRC registers.
- */
-static void mask_irq_ioc(unsigned int irq)
-{
- /* 0: mask */
- unsigned int irq_nr = irq - JMR3927_IRQ_IOC;
- unsigned char imask = jmr3927_ioc_reg_in(JMR3927_IOC_INTM_ADDR);
- unsigned int bit = 1 << irq_nr;
- jmr3927_ioc_reg_out(imask & ~bit, JMR3927_IOC_INTM_ADDR);
- /* flush write buffer */
- (void)jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR);
-}
-static void unmask_irq_ioc(unsigned int irq)
-{
- /* 0: mask */
- unsigned int irq_nr = irq - JMR3927_IRQ_IOC;
- unsigned char imask = jmr3927_ioc_reg_in(JMR3927_IOC_INTM_ADDR);
- unsigned int bit = 1 << irq_nr;
- jmr3927_ioc_reg_out(imask | bit, JMR3927_IOC_INTM_ADDR);
- /* flush write buffer */
- (void)jmr3927_ioc_reg_in(JMR3927_IOC_REV_ADDR);
-}
-
-asmlinkage void plat_irq_dispatch(void)
-{
- unsigned long cp0_cause = read_c0_cause();
- int irq;
-
- if ((cp0_cause & CAUSEF_IP7) == 0)
- return;
- irq = (cp0_cause >> CAUSEB_IP2) & 0x0f;
-
- do_IRQ(irq + JMR3927_IRQ_IRC);
-}
-
-static irqreturn_t jmr3927_ioc_interrupt(int irq, void *dev_id)
-{
- unsigned char istat = jmr3927_ioc_reg_in(JMR3927_IOC_INTS2_ADDR);
- int i;
-
- for (i = 0; i < JMR3927_NR_IRQ_IOC; i++) {
- if (istat & (1 << i)) {
- irq = JMR3927_IRQ_IOC + i;
- do_IRQ(irq);
- }
- }
- return IRQ_HANDLED;
-}
-
-static struct irqaction ioc_action = {
- .handler = jmr3927_ioc_interrupt,
- .mask = CPU_MASK_NONE,
- .name = "IOC",
-};
-
-static irqreturn_t jmr3927_pcierr_interrupt(int irq, void *dev_id)
-{
- printk(KERN_WARNING "PCI error interrupt (irq 0x%x).\n", irq);
- printk(KERN_WARNING "pcistat:%02x, lbstat:%04lx\n",
- tx3927_pcicptr->pcistat, tx3927_pcicptr->lbstat);
-
- return IRQ_HANDLED;
-}
-static struct irqaction pcierr_action = {
- .handler = jmr3927_pcierr_interrupt,
- .mask = CPU_MASK_NONE,
- .name = "PCI error",
-};
-
-static void __init jmr3927_irq_init(void);
-
-void __init arch_init_irq(void)
-{
- /* Now, interrupt control disabled, */
- /* all IRC interrupts are masked, */
- /* all IRC interrupt mode are Low Active. */
-
- /* mask all IOC interrupts */
- jmr3927_ioc_reg_out(0, JMR3927_IOC_INTM_ADDR);
- /* setup IOC interrupt mode (SOFT:High Active, Others:Low Active) */
- jmr3927_ioc_reg_out(JMR3927_IOC_INTF_SOFT, JMR3927_IOC_INTP_ADDR);
-
- /* clear PCI Soft interrupts */
- jmr3927_ioc_reg_out(0, JMR3927_IOC_INTS1_ADDR);
- /* clear PCI Reset interrupts */
- jmr3927_ioc_reg_out(0, JMR3927_IOC_RESET_ADDR);
-
- jmr3927_irq_init();
-
- /* setup IOC interrupt 1 (PCI, MODEM) */
- setup_irq(JMR3927_IRQ_IOCINT, &ioc_action);
-
-#ifdef CONFIG_PCI
- setup_irq(JMR3927_IRQ_IRC_PCI, &pcierr_action);
-#endif
-
- /* enable all CPU interrupt bits. */
- set_c0_status(ST0_IM); /* IE bit is still 0. */
-}
-
-static struct irq_chip jmr3927_irq_ioc = {
- .name = "jmr3927_ioc",
- .ack = mask_irq_ioc,
- .mask = mask_irq_ioc,
- .mask_ack = mask_irq_ioc,
- .unmask = unmask_irq_ioc,
-};
-
-static void __init jmr3927_irq_init(void)
-{
- u32 i;
-
- txx9_irq_init(TX3927_IRC_REG);
- for (i = 0; i < TXx9_MAX_IR; i++)
- txx9_irq_set_pri(i, irc_level[i]);
- for (i = JMR3927_IRQ_IOC; i < JMR3927_IRQ_IOC + JMR3927_NR_IRQ_IOC; i++)
- set_irq_chip_and_handler(i, &jmr3927_irq_ioc, handle_level_irq);
-}