diff options
author | Marek Szyprowski <m.szyprowski@samsung.com> | 2010-05-20 09:51:11 +0400 |
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committer | Ben Dooks <ben-linux@fluff.org> | 2010-05-20 10:28:45 +0400 |
commit | a73e3e6f8f5847c00edb9dd7aab19d005a3d6e5c (patch) | |
tree | 61cfc338e7e58134f078eb79c35f5a6ab9cb6ea8 /arch/arm/plat-s5pc1xx/irq-eint.c | |
parent | 80dfd9556a94fe479fde86370713aafd33b61a0c (diff) | |
download | linux-a73e3e6f8f5847c00edb9dd7aab19d005a3d6e5c.tar.xz |
ARM: remove obsolete plat-s5pc1xx directory
This patch removes all obsolete files from plat-s5pc1xx. This directory is
no longer needed. S5PC100 SoC is now completely supported in plat-s5p
framework.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Diffstat (limited to 'arch/arm/plat-s5pc1xx/irq-eint.c')
-rw-r--r-- | arch/arm/plat-s5pc1xx/irq-eint.c | 281 |
1 files changed, 0 insertions, 281 deletions
diff --git a/arch/arm/plat-s5pc1xx/irq-eint.c b/arch/arm/plat-s5pc1xx/irq-eint.c deleted file mode 100644 index 373122f57d56..000000000000 --- a/arch/arm/plat-s5pc1xx/irq-eint.c +++ /dev/null @@ -1,281 +0,0 @@ -/* - * linux/arch/arm/plat-s5pc1xx/irq-eint.c - * - * Copyright 2009 Samsung Electronics Co. - * Byungho Min <bhmin@samsung.com> - * Kyungin Park <kyungmin.park@samsung.com> - * - * Based on plat-s3c64xx/irq-eint.c - * - * S5PC1XX - 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/irq.h> -#include <linux/io.h> -#include <linux/sysdev.h> -#include <linux/pm.h> -#include <linux/gpio.h> - -#include <asm/hardware/vic.h> - -#include <mach/map.h> - -#include <plat/gpio-cfg.h> -#include <plat/gpio-ext.h> -#include <plat/pm.h> -#include <plat/regs-gpio.h> -#include <plat/regs-irqtype.h> - -/* - * bank is a group of external interrupt - * bank0 means EINT0 ... EINT7 - * bank1 means EINT8 ... EINT15 - * bank2 means EINT16 ... EINT23 - * bank3 means EINT24 ... EINT31 - */ - -static inline int s3c_get_eint(unsigned int irq) -{ - int real; - - if (irq < IRQ_EINT16_31) - real = (irq - IRQ_EINT0); - else - real = (irq - S3C_IRQ_EINT_BASE) + IRQ_EINT16_31 - IRQ_EINT0; - - return real; -} - -static inline int s3c_get_bank(unsigned int irq) -{ - return s3c_get_eint(irq) >> 3; -} - -static inline int s3c_eint_to_bit(unsigned int irq) -{ - int real, bit; - - real = s3c_get_eint(irq); - bit = 1 << (real & (8 - 1)); - - return bit; -} - -static inline void s3c_irq_eint_mask(unsigned int irq) -{ - u32 mask; - u32 bank = s3c_get_bank(irq); - - mask = __raw_readl(S5PC1XX_WKUP_INT_MASK(bank)); - mask |= s3c_eint_to_bit(irq); - __raw_writel(mask, S5PC1XX_WKUP_INT_MASK(bank)); -} - -static void s3c_irq_eint_unmask(unsigned int irq) -{ - u32 mask; - u32 bank = s3c_get_bank(irq); - - mask = __raw_readl(S5PC1XX_WKUP_INT_MASK(bank)); - mask &= ~(s3c_eint_to_bit(irq)); - __raw_writel(mask, S5PC1XX_WKUP_INT_MASK(bank)); -} - -static inline void s3c_irq_eint_ack(unsigned int irq) -{ - u32 bank = s3c_get_bank(irq); - - __raw_writel(s3c_eint_to_bit(irq), S5PC1XX_WKUP_INT_PEND(bank)); -} - -static void s3c_irq_eint_maskack(unsigned int irq) -{ - /* compiler should in-line these */ - s3c_irq_eint_mask(irq); - s3c_irq_eint_ack(irq); -} - -static int s3c_irq_eint_set_type(unsigned int irq, unsigned int type) -{ - u32 bank = s3c_get_bank(irq); - int real = s3c_get_eint(irq); - int gpio, shift, sfn; - u32 ctrl, con = 0; - - switch (type) { - case IRQ_TYPE_NONE: - printk(KERN_WARNING "No edge setting!\n"); - break; - - case IRQ_TYPE_EDGE_RISING: - con = S5PC1XX_WKUP_INT_RISEEDGE; - break; - - case IRQ_TYPE_EDGE_FALLING: - con = S5PC1XX_WKUP_INT_FALLEDGE; - break; - - case IRQ_TYPE_EDGE_BOTH: - con = S5PC1XX_WKUP_INT_BOTHEDGE; - break; - - case IRQ_TYPE_LEVEL_LOW: - con = S5PC1XX_WKUP_INT_LOWLEV; - break; - - case IRQ_TYPE_LEVEL_HIGH: - con = S5PC1XX_WKUP_INT_HILEV; - break; - - default: - printk(KERN_ERR "No such irq type %d", type); - return -EINVAL; - } - - gpio = real & (8 - 1); - shift = gpio << 2; - - ctrl = __raw_readl(S5PC1XX_WKUP_INT_CON(bank)); - ctrl &= ~(0x7 << shift); - ctrl |= con << shift; - __raw_writel(ctrl, S5PC1XX_WKUP_INT_CON(bank)); - - switch (real) { - case 0 ... 7: - gpio = S5PC100_GPH0(gpio); - break; - case 8 ... 15: - gpio = S5PC100_GPH1(gpio); - break; - case 16 ... 23: - gpio = S5PC100_GPH2(gpio); - break; - case 24 ... 31: - gpio = S5PC100_GPH3(gpio); - break; - default: - return -EINVAL; - } - - sfn = S3C_GPIO_SFN(0x2); - s3c_gpio_cfgpin(gpio, sfn); - - return 0; -} - -static struct irq_chip s3c_irq_eint = { - .name = "EINT", - .mask = s3c_irq_eint_mask, - .unmask = s3c_irq_eint_unmask, - .mask_ack = s3c_irq_eint_maskack, - .ack = s3c_irq_eint_ack, - .set_type = s3c_irq_eint_set_type, - .set_wake = s3c_irqext_wake, -}; - -/* s3c_irq_demux_eint - * - * This function demuxes the IRQ from external interrupts, - * from IRQ_EINT(16) to IRQ_EINT(31). 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(S5PC1XX_WKUP_INT_PEND((start >> 3))); - u32 mask = __raw_readl(S5PC1XX_WKUP_INT_MASK((start >> 3))); - unsigned int irq; - - status &= ~mask; - 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_eint16_31(unsigned int irq, struct irq_desc *desc) -{ - s3c_irq_demux_eint(16, 23); - s3c_irq_demux_eint(24, 31); -} - -/* - * Handle EINT0 ... EINT15 at VIC directly - */ -static void s3c_irq_vic_eint_mask(unsigned int irq) -{ - void __iomem *base = get_irq_chip_data(irq); - unsigned int real; - - s3c_irq_eint_mask(irq); - real = s3c_get_eint(irq); - writel(1 << real, base + VIC_INT_ENABLE_CLEAR); -} - -static void s3c_irq_vic_eint_unmask(unsigned int irq) -{ - void __iomem *base = get_irq_chip_data(irq); - unsigned int real; - - s3c_irq_eint_unmask(irq); - real = s3c_get_eint(irq); - writel(1 << real, base + VIC_INT_ENABLE); -} - -static inline void s3c_irq_vic_eint_ack(unsigned int irq) -{ - u32 bit; - u32 bank = s3c_get_bank(irq); - - bit = s3c_eint_to_bit(irq); - __raw_writel(bit, S5PC1XX_WKUP_INT_PEND(bank)); -} - -static void s3c_irq_vic_eint_maskack(unsigned int irq) -{ - /* compiler should in-line these */ - s3c_irq_vic_eint_mask(irq); - s3c_irq_vic_eint_ack(irq); -} - -static struct irq_chip s3c_irq_vic_eint = { - .name = "EINT", - .mask = s3c_irq_vic_eint_mask, - .unmask = s3c_irq_vic_eint_unmask, - .mask_ack = s3c_irq_vic_eint_maskack, - .ack = s3c_irq_vic_eint_ack, - .set_type = s3c_irq_eint_set_type, - .set_wake = s3c_irqext_wake, -}; - -static int __init s5pc1xx_init_irq_eint(void) -{ - int irq; - - for (irq = IRQ_EINT0; irq <= IRQ_EINT15; irq++) { - set_irq_chip(irq, &s3c_irq_vic_eint); - set_irq_handler(irq, handle_level_irq); - set_irq_flags(irq, IRQF_VALID); - } - - for (irq = IRQ_EINT(16); irq <= IRQ_EINT(31); irq++) { - set_irq_chip(irq, &s3c_irq_eint); - set_irq_handler(irq, handle_level_irq); - set_irq_flags(irq, IRQF_VALID); - } - - set_irq_chained_handler(IRQ_EINT16_31, s3c_irq_demux_eint16_31); - - return 0; -} - -arch_initcall(s5pc1xx_init_irq_eint); |