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Diffstat (limited to 'arch/arm/mach-s3c64xx/irq-eint.c')
-rw-r--r--arch/arm/mach-s3c64xx/irq-eint.c213
1 files changed, 0 insertions, 213 deletions
diff --git a/arch/arm/mach-s3c64xx/irq-eint.c b/arch/arm/mach-s3c64xx/irq-eint.c
deleted file mode 100644
index 4d203be1f4c..00000000000
--- a/arch/arm/mach-s3c64xx/irq-eint.c
+++ /dev/null
@@ -1,213 +0,0 @@
-/* arch/arm/plat-s3c64xx/irq-eint.c
- *
- * Copyright 2008 Openmoko, Inc.
- * Copyright 2008 Simtec Electronics
- * Ben Dooks <ben@simtec.co.uk>
- * http://armlinux.simtec.co.uk/
- *
- * S3C64XX - Interrupt handling for IRQ_EINT(x)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/interrupt.h>
-#include <linux/sysdev.h>
-#include <linux/gpio.h>
-#include <linux/irq.h>
-#include <linux/io.h>
-
-#include <asm/hardware/vic.h>
-
-#include <plat/regs-irqtype.h>
-#include <mach/regs-gpio.h>
-#include <plat/gpio-cfg.h>
-
-#include <mach/map.h>
-#include <plat/cpu.h>
-#include <plat/pm.h>
-
-#define eint_offset(irq) ((irq) - IRQ_EINT(0))
-#define eint_irq_to_bit(irq) ((u32)(1 << eint_offset(irq)))
-
-static inline void s3c_irq_eint_mask(struct irq_data *data)
-{
- u32 mask;
-
- mask = __raw_readl(S3C64XX_EINT0MASK);
- mask |= (u32)data->chip_data;
- __raw_writel(mask, S3C64XX_EINT0MASK);
-}
-
-static void s3c_irq_eint_unmask(struct irq_data *data)
-{
- u32 mask;
-
- mask = __raw_readl(S3C64XX_EINT0MASK);
- mask &= ~((u32)data->chip_data);
- __raw_writel(mask, S3C64XX_EINT0MASK);
-}
-
-static inline void s3c_irq_eint_ack(struct irq_data *data)
-{
- __raw_writel((u32)data->chip_data, S3C64XX_EINT0PEND);
-}
-
-static void s3c_irq_eint_maskack(struct irq_data *data)
-{
- /* compiler should in-line these */
- s3c_irq_eint_mask(data);
- s3c_irq_eint_ack(data);
-}
-
-static int s3c_irq_eint_set_type(struct irq_data *data, unsigned int type)
-{
- int offs = eint_offset(data->irq);
- int pin, pin_val;
- int shift;
- u32 ctrl, mask;
- u32 newvalue = 0;
- void __iomem *reg;
-
- if (offs > 27)
- return -EINVAL;
-
- if (offs <= 15)
- reg = S3C64XX_EINT0CON0;
- else
- reg = S3C64XX_EINT0CON1;
-
- switch (type) {
- case IRQ_TYPE_NONE:
- printk(KERN_WARNING "No edge setting!\n");
- break;
-
- case IRQ_TYPE_EDGE_RISING:
- newvalue = S3C2410_EXTINT_RISEEDGE;
- break;
-
- case IRQ_TYPE_EDGE_FALLING:
- newvalue = S3C2410_EXTINT_FALLEDGE;
- break;
-
- case IRQ_TYPE_EDGE_BOTH:
- newvalue = S3C2410_EXTINT_BOTHEDGE;
- break;
-
- case IRQ_TYPE_LEVEL_LOW:
- newvalue = S3C2410_EXTINT_LOWLEV;
- break;
-
- case IRQ_TYPE_LEVEL_HIGH:
- newvalue = S3C2410_EXTINT_HILEV;
- break;
-
- default:
- printk(KERN_ERR "No such irq type %d", type);
- return -1;
- }
-
- if (offs <= 15)
- shift = (offs / 2) * 4;
- else
- shift = ((offs - 16) / 2) * 4;
- mask = 0x7 << shift;
-
- ctrl = __raw_readl(reg);
- ctrl &= ~mask;
- ctrl |= newvalue << shift;
- __raw_writel(ctrl, reg);
-
- /* set the GPIO pin appropriately */
-
- if (offs < 16) {
- pin = S3C64XX_GPN(offs);
- pin_val = S3C_GPIO_SFN(2);
- } else if (offs < 23) {
- pin = S3C64XX_GPL(offs + 8 - 16);
- pin_val = S3C_GPIO_SFN(3);
- } else {
- pin = S3C64XX_GPM(offs - 23);
- pin_val = S3C_GPIO_SFN(3);
- }
-
- s3c_gpio_cfgpin(pin, pin_val);
-
- return 0;
-}
-
-static struct irq_chip s3c_irq_eint = {
- .name = "s3c-eint",
- .irq_mask = s3c_irq_eint_mask,
- .irq_unmask = s3c_irq_eint_unmask,
- .irq_mask_ack = s3c_irq_eint_maskack,
- .irq_ack = s3c_irq_eint_ack,
- .irq_set_type = s3c_irq_eint_set_type,
- .irq_set_wake = s3c_irqext_wake,
-};
-
-/* s3c_irq_demux_eint
- *
- * This function demuxes the IRQ from the group0 external interrupts,
- * from IRQ_EINT(0) to IRQ_EINT(27). It is designed to be inlined into
- * the specific handlers s3c_irq_demux_eintX_Y.
- */
-static inline void s3c_irq_demux_eint(unsigned int start, unsigned int end)
-{
- u32 status = __raw_readl(S3C64XX_EINT0PEND);
- u32 mask = __raw_readl(S3C64XX_EINT0MASK);
- unsigned int irq;
-
- status &= ~mask;
- status >>= start;
- status &= (1 << (end - start + 1)) - 1;
-
- for (irq = IRQ_EINT(start); irq <= IRQ_EINT(end); irq++) {
- if (status & 1)
- generic_handle_irq(irq);
-
- status >>= 1;
- }
-}
-
-static void s3c_irq_demux_eint0_3(unsigned int irq, struct irq_desc *desc)
-{
- s3c_irq_demux_eint(0, 3);
-}
-
-static void s3c_irq_demux_eint4_11(unsigned int irq, struct irq_desc *desc)
-{
- s3c_irq_demux_eint(4, 11);
-}
-
-static void s3c_irq_demux_eint12_19(unsigned int irq, struct irq_desc *desc)
-{
- s3c_irq_demux_eint(12, 19);
-}
-
-static void s3c_irq_demux_eint20_27(unsigned int irq, struct irq_desc *desc)
-{
- s3c_irq_demux_eint(20, 27);
-}
-
-static int __init s3c64xx_init_irq_eint(void)
-{
- int irq;
-
- for (irq = IRQ_EINT(0); irq <= IRQ_EINT(27); irq++) {
- irq_set_chip_and_handler(irq, &s3c_irq_eint, handle_level_irq);
- irq_set_chip_data(irq, (void *)eint_irq_to_bit(irq));
- set_irq_flags(irq, IRQF_VALID);
- }
-
- irq_set_chained_handler(IRQ_EINT0_3, s3c_irq_demux_eint0_3);
- irq_set_chained_handler(IRQ_EINT4_11, s3c_irq_demux_eint4_11);
- irq_set_chained_handler(IRQ_EINT12_19, s3c_irq_demux_eint12_19);
- irq_set_chained_handler(IRQ_EINT20_27, s3c_irq_demux_eint20_27);
-
- return 0;
-}
-
-arch_initcall(s3c64xx_init_irq_eint);