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Diffstat (limited to 'arch/arm/mach-s5p64x0/irq-eint.c')
-rw-r--r--arch/arm/mach-s5p64x0/irq-eint.c155
1 files changed, 0 insertions, 155 deletions
diff --git a/arch/arm/mach-s5p64x0/irq-eint.c b/arch/arm/mach-s5p64x0/irq-eint.c
deleted file mode 100644
index 275dc74f4a7..00000000000
--- a/arch/arm/mach-s5p64x0/irq-eint.c
+++ /dev/null
@@ -1,155 +0,0 @@
-/* arch/arm/mach-s5p64x0/irq-eint.c
- *
- * Copyright (c) 2011 Samsung Electronics Co., Ltd
- * http://www.samsung.com/
- *
- * Based on linux/arch/arm/mach-s3c64xx/irq-eint.c
- *
- * S5P64X0 - Interrupt handling for External Interrupts.
- *
- * 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/gpio.h>
-#include <linux/irq.h>
-#include <linux/io.h>
-
-#include <plat/cpu.h>
-#include <plat/regs-irqtype.h>
-#include <plat/gpio-cfg.h>
-#include <plat/pm.h>
-
-#include <mach/regs-gpio.h>
-#include <mach/regs-clock.h>
-
-#define eint_offset(irq) ((irq) - IRQ_EINT(0))
-
-static int s5p64x0_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;
-
- if (offs > 15)
- return -EINVAL;
-
- 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 -EINVAL;
- }
-
- shift = (offs / 2) * 4;
- mask = 0x7 << shift;
-
- ctrl = __raw_readl(S5P64X0_EINT0CON0) & ~mask;
- ctrl |= newvalue << shift;
- __raw_writel(ctrl, S5P64X0_EINT0CON0);
-
- /* Configure the GPIO pin for 6450 or 6440 based on CPU ID */
- if (soc_is_s5p6450())
- s3c_gpio_cfgpin(S5P6450_GPN(offs), S3C_GPIO_SFN(2));
- else
- s3c_gpio_cfgpin(S5P6440_GPN(offs), S3C_GPIO_SFN(2));
-
- return 0;
-}
-
-/*
- * s5p64x0_irq_demux_eint
- *
- * This function demuxes the IRQ from the group0 external interrupts,
- * from IRQ_EINT(0) to IRQ_EINT(15). It is designed to be inlined into
- * the specific handlers s5p64x0_irq_demux_eintX_Y.
- */
-static inline void s5p64x0_irq_demux_eint(unsigned int start, unsigned int end)
-{
- u32 status = __raw_readl(S5P64X0_EINT0PEND);
- u32 mask = __raw_readl(S5P64X0_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 s5p64x0_irq_demux_eint0_3(unsigned int irq, struct irq_desc *desc)
-{
- s5p64x0_irq_demux_eint(0, 3);
-}
-
-static void s5p64x0_irq_demux_eint4_11(unsigned int irq, struct irq_desc *desc)
-{
- s5p64x0_irq_demux_eint(4, 11);
-}
-
-static void s5p64x0_irq_demux_eint12_15(unsigned int irq,
- struct irq_desc *desc)
-{
- s5p64x0_irq_demux_eint(12, 15);
-}
-
-static int s5p64x0_alloc_gc(void)
-{
- struct irq_chip_generic *gc;
- struct irq_chip_type *ct;
-
- gc = irq_alloc_generic_chip("s5p64x0-eint", 1, S5P_IRQ_EINT_BASE,
- S5P_VA_GPIO, handle_level_irq);
- if (!gc) {
- printk(KERN_ERR "%s: irq_alloc_generic_chip for group 0"
- "external interrupts failed\n", __func__);
- return -EINVAL;
- }
-
- ct = gc->chip_types;
- ct->chip.irq_ack = irq_gc_ack_set_bit;
- ct->chip.irq_mask = irq_gc_mask_set_bit;
- ct->chip.irq_unmask = irq_gc_mask_clr_bit;
- ct->chip.irq_set_type = s5p64x0_irq_eint_set_type;
- ct->chip.irq_set_wake = s3c_irqext_wake;
- ct->regs.ack = EINT0PEND_OFFSET;
- ct->regs.mask = EINT0MASK_OFFSET;
- irq_setup_generic_chip(gc, IRQ_MSK(16), IRQ_GC_INIT_MASK_CACHE,
- IRQ_NOREQUEST | IRQ_NOPROBE, 0);
- return 0;
-}
-
-static int __init s5p64x0_init_irq_eint(void)
-{
- int ret = s5p64x0_alloc_gc();
- irq_set_chained_handler(IRQ_EINT0_3, s5p64x0_irq_demux_eint0_3);
- irq_set_chained_handler(IRQ_EINT4_11, s5p64x0_irq_demux_eint4_11);
- irq_set_chained_handler(IRQ_EINT12_15, s5p64x0_irq_demux_eint12_15);
-
- return ret;
-}
-arch_initcall(s5p64x0_init_irq_eint);