diff options
Diffstat (limited to 'arch/arm/mach-msm/irq.c')
| -rw-r--r-- | arch/arm/mach-msm/irq.c | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/arch/arm/mach-msm/irq.c b/arch/arm/mach-msm/irq.c deleted file mode 100644 index ea514be390c6..000000000000 --- a/arch/arm/mach-msm/irq.c +++ /dev/null @@ -1,151 +0,0 @@ -/* linux/arch/arm/mach-msm/irq.c - * - * Copyright (C) 2007 Google, Inc. - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * 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. - * - */ - -#include <linux/init.h> -#include <linux/module.h> -#include <linux/sched.h> -#include <linux/interrupt.h> -#include <linux/ptrace.h> -#include <linux/timer.h> -#include <linux/irq.h> -#include <linux/io.h> - -#include <mach/hardware.h> - -#include <mach/msm_iomap.h> - -#define VIC_REG(off) (MSM_VIC_BASE + (off)) - -#define VIC_INT_SELECT0 VIC_REG(0x0000) /* 1: FIQ, 0: IRQ */ -#define VIC_INT_SELECT1 VIC_REG(0x0004) /* 1: FIQ, 0: IRQ */ -#define VIC_INT_EN0 VIC_REG(0x0010) -#define VIC_INT_EN1 VIC_REG(0x0014) -#define VIC_INT_ENCLEAR0 VIC_REG(0x0020) -#define VIC_INT_ENCLEAR1 VIC_REG(0x0024) -#define VIC_INT_ENSET0 VIC_REG(0x0030) -#define VIC_INT_ENSET1 VIC_REG(0x0034) -#define VIC_INT_TYPE0 VIC_REG(0x0040) /* 1: EDGE, 0: LEVEL */ -#define VIC_INT_TYPE1 VIC_REG(0x0044) /* 1: EDGE, 0: LEVEL */ -#define VIC_INT_POLARITY0 VIC_REG(0x0050) /* 1: NEG, 0: POS */ -#define VIC_INT_POLARITY1 VIC_REG(0x0054) /* 1: NEG, 0: POS */ -#define VIC_NO_PEND_VAL VIC_REG(0x0060) -#define VIC_INT_MASTEREN VIC_REG(0x0064) /* 1: IRQ, 2: FIQ */ -#define VIC_PROTECTION VIC_REG(0x006C) /* 1: ENABLE */ -#define VIC_CONFIG VIC_REG(0x0068) /* 1: USE ARM1136 VIC */ -#define VIC_IRQ_STATUS0 VIC_REG(0x0080) -#define VIC_IRQ_STATUS1 VIC_REG(0x0084) -#define VIC_FIQ_STATUS0 VIC_REG(0x0090) -#define VIC_FIQ_STATUS1 VIC_REG(0x0094) -#define VIC_RAW_STATUS0 VIC_REG(0x00A0) -#define VIC_RAW_STATUS1 VIC_REG(0x00A4) -#define VIC_INT_CLEAR0 VIC_REG(0x00B0) -#define VIC_INT_CLEAR1 VIC_REG(0x00B4) -#define VIC_SOFTINT0 VIC_REG(0x00C0) -#define VIC_SOFTINT1 VIC_REG(0x00C4) -#define VIC_IRQ_VEC_RD VIC_REG(0x00D0) /* pending int # */ -#define VIC_IRQ_VEC_PEND_RD VIC_REG(0x00D4) /* pending vector addr */ -#define VIC_IRQ_VEC_WR VIC_REG(0x00D8) -#define VIC_IRQ_IN_SERVICE VIC_REG(0x00E0) -#define VIC_IRQ_IN_STACK VIC_REG(0x00E4) -#define VIC_TEST_BUS_SEL VIC_REG(0x00E8) - -#define VIC_VECTPRIORITY(n) VIC_REG(0x0200+((n) * 4)) -#define VIC_VECTADDR(n) VIC_REG(0x0400+((n) * 4)) - -static void msm_irq_ack(struct irq_data *d) -{ - void __iomem *reg = VIC_INT_CLEAR0 + ((d->irq & 32) ? 4 : 0); - writel(1 << (d->irq & 31), reg); -} - -static void msm_irq_mask(struct irq_data *d) -{ - void __iomem *reg = VIC_INT_ENCLEAR0 + ((d->irq & 32) ? 4 : 0); - writel(1 << (d->irq & 31), reg); -} - -static void msm_irq_unmask(struct irq_data *d) -{ - void __iomem *reg = VIC_INT_ENSET0 + ((d->irq & 32) ? 4 : 0); - writel(1 << (d->irq & 31), reg); -} - -static int msm_irq_set_wake(struct irq_data *d, unsigned int on) -{ - return -EINVAL; -} - -static int msm_irq_set_type(struct irq_data *d, unsigned int flow_type) -{ - void __iomem *treg = VIC_INT_TYPE0 + ((d->irq & 32) ? 4 : 0); - void __iomem *preg = VIC_INT_POLARITY0 + ((d->irq & 32) ? 4 : 0); - int b = 1 << (d->irq & 31); - - if (flow_type & (IRQF_TRIGGER_FALLING | IRQF_TRIGGER_LOW)) - writel(readl(preg) | b, preg); - if (flow_type & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_HIGH)) - writel(readl(preg) & (~b), preg); - - if (flow_type & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING)) { - writel(readl(treg) | b, treg); - __irq_set_handler_locked(d->irq, handle_edge_irq); - } - if (flow_type & (IRQF_TRIGGER_HIGH | IRQF_TRIGGER_LOW)) { - writel(readl(treg) & (~b), treg); - __irq_set_handler_locked(d->irq, handle_level_irq); - } - return 0; -} - -static struct irq_chip msm_irq_chip = { - .name = "msm", - .irq_ack = msm_irq_ack, - .irq_mask = msm_irq_mask, - .irq_unmask = msm_irq_unmask, - .irq_set_wake = msm_irq_set_wake, - .irq_set_type = msm_irq_set_type, -}; - -void __init msm_init_irq(void) -{ - unsigned n; - - /* select level interrupts */ - writel(0, VIC_INT_TYPE0); - writel(0, VIC_INT_TYPE1); - - /* select highlevel interrupts */ - writel(0, VIC_INT_POLARITY0); - writel(0, VIC_INT_POLARITY1); - - /* select IRQ for all INTs */ - writel(0, VIC_INT_SELECT0); - writel(0, VIC_INT_SELECT1); - - /* disable all INTs */ - writel(0, VIC_INT_EN0); - writel(0, VIC_INT_EN1); - - /* don't use 1136 vic */ - writel(0, VIC_CONFIG); - - /* enable interrupt controller */ - writel(1, VIC_INT_MASTEREN); - - for (n = 0; n < NR_MSM_IRQS; n++) { - irq_set_chip_and_handler(n, &msm_irq_chip, handle_level_irq); - set_irq_flags(n, IRQF_VALID); - } -} |