summaryrefslogtreecommitdiff
path: root/arch/mips/emma2rh/markeins/irq.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/mips/emma2rh/markeins/irq.c')
-rw-r--r--arch/mips/emma2rh/markeins/irq.c132
1 files changed, 0 insertions, 132 deletions
diff --git a/arch/mips/emma2rh/markeins/irq.c b/arch/mips/emma2rh/markeins/irq.c
deleted file mode 100644
index 6bcf6a06367a..000000000000
--- a/arch/mips/emma2rh/markeins/irq.c
+++ /dev/null
@@ -1,132 +0,0 @@
-/*
- * arch/mips/emma2rh/markeins/irq.c
- * This file defines the irq handler for EMMA2RH.
- *
- * Copyright (C) NEC Electronics Corporation 2004-2006
- *
- * This file is based on the arch/mips/ddb5xxx/ddb5477/irq.c
- *
- * Copyright 2001 MontaVista Software Inc.
- *
- * 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 program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-#include <linux/init.h>
-#include <linux/interrupt.h>
-#include <linux/irq.h>
-#include <linux/types.h>
-#include <linux/ptrace.h>
-#include <linux/delay.h>
-
-#include <asm/irq_cpu.h>
-#include <asm/system.h>
-#include <asm/mipsregs.h>
-#include <asm/debug.h>
-#include <asm/addrspace.h>
-#include <asm/bootinfo.h>
-
-#include <asm/emma2rh/emma2rh.h>
-
-/*
- * IRQ mapping
- *
- * 0-7: 8 CPU interrupts
- * 0 - software interrupt 0
- * 1 - software interrupt 1
- * 2 - most Vrc5477 interrupts are routed to this pin
- * 3 - (optional) some other interrupts routed to this pin for debugg
- * 4 - not used
- * 5 - not used
- * 6 - not used
- * 7 - cpu timer (used by default)
- *
- */
-
-extern void emma2rh_sw_irq_init(u32 base);
-extern void emma2rh_gpio_irq_init(u32 base);
-extern void emma2rh_irq_init(u32 base);
-extern void emma2rh_irq_dispatch(void);
-
-static struct irqaction irq_cascade = {
- .handler = no_action,
- .flags = 0,
- .mask = CPU_MASK_NONE,
- .name = "cascade",
- .dev_id = NULL,
- .next = NULL,
-};
-
-void __init arch_init_irq(void)
-{
- u32 reg;
-
- db_run(printk("markeins_irq_setup invoked.\n"));
-
- /* by default, interrupts are disabled. */
- emma2rh_out32(EMMA2RH_BHIF_INT_EN_0, 0);
- emma2rh_out32(EMMA2RH_BHIF_INT_EN_1, 0);
- emma2rh_out32(EMMA2RH_BHIF_INT_EN_2, 0);
- emma2rh_out32(EMMA2RH_BHIF_INT1_EN_0, 0);
- emma2rh_out32(EMMA2RH_BHIF_INT1_EN_1, 0);
- emma2rh_out32(EMMA2RH_BHIF_INT1_EN_2, 0);
- emma2rh_out32(EMMA2RH_BHIF_SW_INT_EN, 0);
-
- clear_c0_status(0xff00);
- set_c0_status(0x0400);
-
-#define GPIO_PCI (0xf<<15)
- /* setup GPIO interrupt for PCI interface */
- /* direction input */
- reg = emma2rh_in32(EMMA2RH_GPIO_DIR);
- emma2rh_out32(EMMA2RH_GPIO_DIR, reg & ~GPIO_PCI);
- /* disable interrupt */
- reg = emma2rh_in32(EMMA2RH_GPIO_INT_MASK);
- emma2rh_out32(EMMA2RH_GPIO_INT_MASK, reg & ~GPIO_PCI);
- /* level triggerd */
- reg = emma2rh_in32(EMMA2RH_GPIO_INT_MODE);
- emma2rh_out32(EMMA2RH_GPIO_INT_MODE, reg | GPIO_PCI);
- reg = emma2rh_in32(EMMA2RH_GPIO_INT_CND_A);
- emma2rh_out32(EMMA2RH_GPIO_INT_CND_A, reg & (~GPIO_PCI));
- /* interrupt clear */
- emma2rh_out32(EMMA2RH_GPIO_INT_ST, ~GPIO_PCI);
-
- /* init all controllers */
- emma2rh_irq_init(EMMA2RH_IRQ_BASE);
- emma2rh_sw_irq_init(EMMA2RH_SW_IRQ_BASE);
- emma2rh_gpio_irq_init(EMMA2RH_GPIO_IRQ_BASE);
- mips_cpu_irq_init();
-
- /* setup cascade interrupts */
- setup_irq(EMMA2RH_IRQ_BASE + EMMA2RH_SW_CASCADE, &irq_cascade);
- setup_irq(EMMA2RH_IRQ_BASE + EMMA2RH_GPIO_CASCADE, &irq_cascade);
- setup_irq(CPU_IRQ_BASE + CPU_EMMA2RH_CASCADE, &irq_cascade);
-}
-
-asmlinkage void plat_irq_dispatch(void)
-{
- unsigned int pending = read_c0_status() & read_c0_cause() & ST0_IM;
-
- if (pending & STATUSF_IP7)
- do_IRQ(CPU_IRQ_BASE + 7);
- else if (pending & STATUSF_IP2)
- emma2rh_irq_dispatch();
- else if (pending & STATUSF_IP1)
- do_IRQ(CPU_IRQ_BASE + 1);
- else if (pending & STATUSF_IP0)
- do_IRQ(CPU_IRQ_BASE + 0);
- else
- spurious_interrupt();
-}
-
-