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Diffstat (limited to 'arch/arm/plat-s5p/irq-eint.c')
-rw-r--r--arch/arm/plat-s5p/irq-eint.c219
1 files changed, 0 insertions, 219 deletions
diff --git a/arch/arm/plat-s5p/irq-eint.c b/arch/arm/plat-s5p/irq-eint.c
deleted file mode 100644
index 139c050..0000000
--- a/arch/arm/plat-s5p/irq-eint.c
+++ /dev/null
@@ -1,219 +0,0 @@
-/* linux/arch/arm/plat-s5p/irq-eint.c
- *
- * Copyright (c) 2010 Samsung Electronics Co., Ltd.
- * http://www.samsung.com
- *
- * S5P - IRQ EINT support
- *
- * 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/irq.h>
-#include <linux/io.h>
-#include <linux/device.h>
-#include <linux/gpio.h>
-
-#include <asm/hardware/vic.h>
-
-#include <plat/regs-irqtype.h>
-
-#include <mach/map.h>
-#include <plat/cpu.h>
-#include <plat/pm.h>
-
-#include <plat/gpio-cfg.h>
-#include <mach/regs-gpio.h>
-
-static inline void s5p_irq_eint_mask(struct irq_data *data)
-{
- u32 mask;
-
- mask = __raw_readl(S5P_EINT_MASK(EINT_REG_NR(data->irq)));
- mask |= eint_irq_to_bit(data->irq);
- __raw_writel(mask, S5P_EINT_MASK(EINT_REG_NR(data->irq)));
-}
-
-static void s5p_irq_eint_unmask(struct irq_data *data)
-{
- u32 mask;
-
- mask = __raw_readl(S5P_EINT_MASK(EINT_REG_NR(data->irq)));
- mask &= ~(eint_irq_to_bit(data->irq));
- __raw_writel(mask, S5P_EINT_MASK(EINT_REG_NR(data->irq)));
-}
-
-static inline void s5p_irq_eint_ack(struct irq_data *data)
-{
- __raw_writel(eint_irq_to_bit(data->irq),
- S5P_EINT_PEND(EINT_REG_NR(data->irq)));
-}
-
-static void s5p_irq_eint_maskack(struct irq_data *data)
-{
- /* compiler should in-line these */
- s5p_irq_eint_mask(data);
- s5p_irq_eint_ack(data);
-}
-
-static int s5p_irq_eint_set_type(struct irq_data *data, unsigned int type)
-{
- int offs = EINT_OFFSET(data->irq);
- int shift;
- u32 ctrl, mask;
- u32 newvalue = 0;
-
- switch (type) {
- case IRQ_TYPE_EDGE_RISING:
- newvalue = S5P_IRQ_TYPE_EDGE_RISING;
- break;
-
- case IRQ_TYPE_EDGE_FALLING:
- newvalue = S5P_IRQ_TYPE_EDGE_FALLING;
- break;
-
- case IRQ_TYPE_EDGE_BOTH:
- newvalue = S5P_IRQ_TYPE_EDGE_BOTH;
- break;
-
- case IRQ_TYPE_LEVEL_LOW:
- newvalue = S5P_IRQ_TYPE_LEVEL_LOW;
- break;
-
- case IRQ_TYPE_LEVEL_HIGH:
- newvalue = S5P_IRQ_TYPE_LEVEL_HIGH;
- break;
-
- default:
- printk(KERN_ERR "No such irq type %d", type);
- return -EINVAL;
- }
-
- shift = (offs & 0x7) * 4;
- mask = 0x7 << shift;
-
- ctrl = __raw_readl(S5P_EINT_CON(EINT_REG_NR(data->irq)));
- ctrl &= ~mask;
- ctrl |= newvalue << shift;
- __raw_writel(ctrl, S5P_EINT_CON(EINT_REG_NR(data->irq)));
-
- if ((0 <= offs) && (offs < 8))
- s3c_gpio_cfgpin(EINT_GPIO_0(offs & 0x7), EINT_MODE);
-
- else if ((8 <= offs) && (offs < 16))
- s3c_gpio_cfgpin(EINT_GPIO_1(offs & 0x7), EINT_MODE);
-
- else if ((16 <= offs) && (offs < 24))
- s3c_gpio_cfgpin(EINT_GPIO_2(offs & 0x7), EINT_MODE);
-
- else if ((24 <= offs) && (offs < 32))
- s3c_gpio_cfgpin(EINT_GPIO_3(offs & 0x7), EINT_MODE);
-
- else
- printk(KERN_ERR "No such irq number %d", offs);
-
- return 0;
-}
-
-static struct irq_chip s5p_irq_eint = {
- .name = "s5p-eint",
- .irq_mask = s5p_irq_eint_mask,
- .irq_unmask = s5p_irq_eint_unmask,
- .irq_mask_ack = s5p_irq_eint_maskack,
- .irq_ack = s5p_irq_eint_ack,
- .irq_set_type = s5p_irq_eint_set_type,
-#ifdef CONFIG_PM
- .irq_set_wake = s3c_irqext_wake,
-#endif
-};
-
-/* s5p_irq_demux_eint
- *
- * This function demuxes the IRQ from the group0 external interrupts,
- * from EINTs 16 to 31. It is designed to be inlined into the specific
- * handler s5p_irq_demux_eintX_Y.
- *
- * Each EINT pend/mask registers handle eight of them.
- */
-static inline void s5p_irq_demux_eint(unsigned int start)
-{
- u32 status = __raw_readl(S5P_EINT_PEND(EINT_REG_NR(start)));
- u32 mask = __raw_readl(S5P_EINT_MASK(EINT_REG_NR(start)));
- unsigned int irq;
-
- status &= ~mask;
- status &= 0xff;
-
- while (status) {
- irq = fls(status) - 1;
- generic_handle_irq(irq + start);
- status &= ~(1 << irq);
- }
-}
-
-static void s5p_irq_demux_eint16_31(unsigned int irq, struct irq_desc *desc)
-{
- s5p_irq_demux_eint(IRQ_EINT(16));
- s5p_irq_demux_eint(IRQ_EINT(24));
-}
-
-static inline void s5p_irq_vic_eint_mask(struct irq_data *data)
-{
- void __iomem *base = irq_data_get_irq_chip_data(data);
-
- s5p_irq_eint_mask(data);
- writel(1 << EINT_OFFSET(data->irq), base + VIC_INT_ENABLE_CLEAR);
-}
-
-static void s5p_irq_vic_eint_unmask(struct irq_data *data)
-{
- void __iomem *base = irq_data_get_irq_chip_data(data);
-
- s5p_irq_eint_unmask(data);
- writel(1 << EINT_OFFSET(data->irq), base + VIC_INT_ENABLE);
-}
-
-static inline void s5p_irq_vic_eint_ack(struct irq_data *data)
-{
- __raw_writel(eint_irq_to_bit(data->irq),
- S5P_EINT_PEND(EINT_REG_NR(data->irq)));
-}
-
-static void s5p_irq_vic_eint_maskack(struct irq_data *data)
-{
- s5p_irq_vic_eint_mask(data);
- s5p_irq_vic_eint_ack(data);
-}
-
-static struct irq_chip s5p_irq_vic_eint = {
- .name = "s5p_vic_eint",
- .irq_mask = s5p_irq_vic_eint_mask,
- .irq_unmask = s5p_irq_vic_eint_unmask,
- .irq_mask_ack = s5p_irq_vic_eint_maskack,
- .irq_ack = s5p_irq_vic_eint_ack,
- .irq_set_type = s5p_irq_eint_set_type,
-#ifdef CONFIG_PM
- .irq_set_wake = s3c_irqext_wake,
-#endif
-};
-
-static int __init s5p_init_irq_eint(void)
-{
- int irq;
-
- for (irq = IRQ_EINT(0); irq <= IRQ_EINT(15); irq++)
- irq_set_chip(irq, &s5p_irq_vic_eint);
-
- for (irq = IRQ_EINT(16); irq <= IRQ_EINT(31); irq++) {
- irq_set_chip_and_handler(irq, &s5p_irq_eint, handle_level_irq);
- set_irq_flags(irq, IRQF_VALID);
- }
-
- irq_set_chained_handler(IRQ_EINT16_31, s5p_irq_demux_eint16_31);
- return 0;
-}
-
-arch_initcall(s5p_init_irq_eint);