]> git.proxmox.com Git - mirror_ubuntu-artful-kernel.git/blobdiff - arch/arm/mach-exynos/common.c
Merge branch 'samsung/soc' into next/soc2
[mirror_ubuntu-artful-kernel.git] / arch / arm / mach-exynos / common.c
index 02696ac143bd0ccfe5350b3ebffe7294291e2396..66742e914641733fe456aad9a54d8616bd22017c 100644 (file)
 static const char name_exynos4210[] = "EXYNOS4210";
 static const char name_exynos4212[] = "EXYNOS4212";
 static const char name_exynos4412[] = "EXYNOS4412";
+static const char name_exynos5250[] = "EXYNOS5250";
+
+static void exynos4_map_io(void);
+static void exynos5_map_io(void);
+static void exynos4_init_clocks(int xtal);
+static void exynos5_init_clocks(int xtal);
+static void exynos_init_uarts(struct s3c2410_uartcfg *cfg, int no);
+static int exynos_init(void);
 
 static struct cpu_table cpu_ids[] __initdata = {
        {
@@ -60,7 +68,7 @@ static struct cpu_table cpu_ids[] __initdata = {
                .idmask         = EXYNOS4_CPU_MASK,
                .map_io         = exynos4_map_io,
                .init_clocks    = exynos4_init_clocks,
-               .init_uarts     = exynos4_init_uarts,
+               .init_uarts     = exynos_init_uarts,
                .init           = exynos_init,
                .name           = name_exynos4210,
        }, {
@@ -68,7 +76,7 @@ static struct cpu_table cpu_ids[] __initdata = {
                .idmask         = EXYNOS4_CPU_MASK,
                .map_io         = exynos4_map_io,
                .init_clocks    = exynos4_init_clocks,
-               .init_uarts     = exynos4_init_uarts,
+               .init_uarts     = exynos_init_uarts,
                .init           = exynos_init,
                .name           = name_exynos4212,
        }, {
@@ -76,9 +84,17 @@ static struct cpu_table cpu_ids[] __initdata = {
                .idmask         = EXYNOS4_CPU_MASK,
                .map_io         = exynos4_map_io,
                .init_clocks    = exynos4_init_clocks,
-               .init_uarts     = exynos4_init_uarts,
+               .init_uarts     = exynos_init_uarts,
                .init           = exynos_init,
                .name           = name_exynos4412,
+       }, {
+               .idcode         = EXYNOS5250_SOC_ID,
+               .idmask         = EXYNOS5_SOC_MASK,
+               .map_io         = exynos5_map_io,
+               .init_clocks    = exynos5_init_clocks,
+               .init_uarts     = exynos_init_uarts,
+               .init           = exynos_init,
+               .name           = name_exynos5250,
        },
 };
 
@@ -87,10 +103,14 @@ static struct cpu_table cpu_ids[] __initdata = {
 static struct map_desc exynos_iodesc[] __initdata = {
        {
                .virtual        = (unsigned long)S5P_VA_CHIPID,
-               .pfn            = __phys_to_pfn(EXYNOS4_PA_CHIPID),
+               .pfn            = __phys_to_pfn(EXYNOS_PA_CHIPID),
                .length         = SZ_4K,
                .type           = MT_DEVICE,
-       }, {
+       },
+};
+
+static struct map_desc exynos4_iodesc[] __initdata = {
+       {
                .virtual        = (unsigned long)S3C_VA_SYS,
                .pfn            = __phys_to_pfn(EXYNOS4_PA_SYSCON),
                .length         = SZ_64K,
@@ -140,11 +160,7 @@ static struct map_desc exynos_iodesc[] __initdata = {
                .pfn            = __phys_to_pfn(EXYNOS4_PA_UART),
                .length         = SZ_512K,
                .type           = MT_DEVICE,
-       },
-};
-
-static struct map_desc exynos4_iodesc[] __initdata = {
-       {
+       }, {
                .virtual        = (unsigned long)S5P_VA_CMU,
                .pfn            = __phys_to_pfn(EXYNOS4_PA_CMU),
                .length         = SZ_128K,
@@ -210,19 +226,80 @@ static struct map_desc exynos4_iodesc1[] __initdata = {
        },
 };
 
-static void exynos_idle(void)
-{
-       if (!need_resched())
-               cpu_do_idle();
-
-       local_irq_enable();
-}
+static struct map_desc exynos5_iodesc[] __initdata = {
+       {
+               .virtual        = (unsigned long)S3C_VA_SYS,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_SYSCON),
+               .length         = SZ_64K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S3C_VA_TIMER,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_TIMER),
+               .length         = SZ_16K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S3C_VA_WATCHDOG,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_WATCHDOG),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_SROMC,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_SROMC),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_SYSTIMER,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_SYSTIMER),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_SYSRAM,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_SYSRAM),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_CMU,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_CMU),
+               .length         = 144 * SZ_1K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_PMU,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_PMU),
+               .length         = SZ_64K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_COMBINER_BASE,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_COMBINER),
+               .length         = SZ_4K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S3C_VA_UART,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_UART),
+               .length         = SZ_512K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_GIC_CPU,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_GIC_CPU),
+               .length         = SZ_64K,
+               .type           = MT_DEVICE,
+       }, {
+               .virtual        = (unsigned long)S5P_VA_GIC_DIST,
+               .pfn            = __phys_to_pfn(EXYNOS5_PA_GIC_DIST),
+               .length         = SZ_64K,
+               .type           = MT_DEVICE,
+       },
+};
 
 void exynos4_restart(char mode, const char *cmd)
 {
        __raw_writel(0x1, S5P_SWRESET);
 }
 
+void exynos5_restart(char mode, const char *cmd)
+{
+       __raw_writel(0x1, EXYNOS_SWRESET);
+}
+
 /*
  * exynos_map_io
  *
@@ -242,7 +319,7 @@ void __init exynos_init_io(struct map_desc *mach_desc, int size)
        s3c_init_cpu(samsung_cpu_id, cpu_ids, ARRAY_SIZE(cpu_ids));
 }
 
-void __init exynos4_map_io(void)
+static void __init exynos4_map_io(void)
 {
        iotable_init(exynos4_iodesc, ARRAY_SIZE(exynos4_iodesc));
 
@@ -273,7 +350,22 @@ void __init exynos4_map_io(void)
        s5p_hdmi_setname("exynos4-hdmi");
 }
 
-void __init exynos4_init_clocks(int xtal)
+static void __init exynos5_map_io(void)
+{
+       iotable_init(exynos5_iodesc, ARRAY_SIZE(exynos5_iodesc));
+
+       s3c_device_i2c0.resource[0].start = EXYNOS5_PA_IIC(0);
+       s3c_device_i2c0.resource[0].end   = EXYNOS5_PA_IIC(0) + SZ_4K - 1;
+       s3c_device_i2c0.resource[1].start = EXYNOS5_IRQ_IIC;
+       s3c_device_i2c0.resource[1].end   = EXYNOS5_IRQ_IIC;
+
+       /* The I2C bus controllers are directly compatible with s3c2440 */
+       s3c_i2c0_setname("s3c2440-i2c");
+       s3c_i2c1_setname("s3c2440-i2c");
+       s3c_i2c2_setname("s3c2440-i2c");
+}
+
+static void __init exynos4_init_clocks(int xtal)
 {
        printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
 
@@ -289,6 +381,17 @@ void __init exynos4_init_clocks(int xtal)
        exynos4_setup_clocks();
 }
 
+static void __init exynos5_init_clocks(int xtal)
+{
+       printk(KERN_DEBUG "%s: initializing clocks\n", __func__);
+
+       s3c24xx_register_baseclocks(xtal);
+       s5p_register_clocks(xtal);
+
+       exynos5_register_clocks();
+       exynos5_setup_clocks();
+}
+
 #define COMBINER_ENABLE_SET    0x0
 #define COMBINER_ENABLE_CLEAR  0x4
 #define COMBINER_INT_STATUS    0xC
@@ -362,7 +465,14 @@ static struct irq_chip combiner_chip = {
 
 static void __init combiner_cascade_irq(unsigned int combiner_nr, unsigned int irq)
 {
-       if (combiner_nr >= MAX_COMBINER_NR)
+       unsigned int max_nr;
+
+       if (soc_is_exynos5250())
+               max_nr = EXYNOS5_MAX_COMBINER_NR;
+       else
+               max_nr = EXYNOS4_MAX_COMBINER_NR;
+
+       if (combiner_nr >= max_nr)
                BUG();
        if (irq_set_handler_data(irq, &combiner_data[combiner_nr]) != 0)
                BUG();
@@ -373,8 +483,14 @@ static void __init combiner_init(unsigned int combiner_nr, void __iomem *base,
                          unsigned int irq_start)
 {
        unsigned int i;
+       unsigned int max_nr;
 
-       if (combiner_nr >= MAX_COMBINER_NR)
+       if (soc_is_exynos5250())
+               max_nr = EXYNOS5_MAX_COMBINER_NR;
+       else
+               max_nr = EXYNOS4_MAX_COMBINER_NR;
+
+       if (combiner_nr >= max_nr)
                BUG();
 
        combiner_data[combiner_nr].base = base;
@@ -417,7 +533,7 @@ void __init exynos4_init_irq(void)
                of_irq_init(exynos4_dt_irq_match);
 #endif
 
-       for (irq = 0; irq < MAX_COMBINER_NR; irq++) {
+       for (irq = 0; irq < EXYNOS4_MAX_COMBINER_NR; irq++) {
 
                combiner_init(irq, (void __iomem *)S5P_VA_COMBINER(irq),
                                COMBINER_IRQ(irq, 0));
@@ -432,24 +548,59 @@ void __init exynos4_init_irq(void)
        s5p_init_irq(NULL, 0);
 }
 
+void __init exynos5_init_irq(void)
+{
+       int irq;
+
+       gic_init(0, IRQ_PPI(0), S5P_VA_GIC_DIST, S5P_VA_GIC_CPU);
+
+       for (irq = 0; irq < EXYNOS5_MAX_COMBINER_NR; irq++) {
+               combiner_init(irq, (void __iomem *)S5P_VA_COMBINER(irq),
+                               COMBINER_IRQ(irq, 0));
+               combiner_cascade_irq(irq, IRQ_SPI(irq));
+       }
+
+       /*
+        * The parameters of s5p_init_irq() are for VIC init.
+        * Theses parameters should be NULL and 0 because EXYNOS4
+        * uses GIC instead of VIC.
+        */
+       s5p_init_irq(NULL, 0);
+}
+
 struct bus_type exynos4_subsys = {
        .name           = "exynos4-core",
        .dev_name       = "exynos4-core",
 };
 
+struct bus_type exynos5_subsys = {
+       .name           = "exynos5-core",
+       .dev_name       = "exynos5-core",
+};
+
 static struct device exynos4_dev = {
        .bus    = &exynos4_subsys,
 };
 
-static int __init exynos4_core_init(void)
+static struct device exynos5_dev = {
+       .bus    = &exynos5_subsys,
+};
+
+static int __init exynos_core_init(void)
 {
-       return subsys_system_register(&exynos4_subsys, NULL);
+       if (soc_is_exynos5250())
+               return subsys_system_register(&exynos5_subsys, NULL);
+       else
+               return subsys_system_register(&exynos4_subsys, NULL);
 }
-core_initcall(exynos4_core_init);
+core_initcall(exynos_core_init);
 
 #ifdef CONFIG_CACHE_L2X0
 static int __init exynos4_l2x0_cache_init(void)
 {
+       if (soc_is_exynos5250())
+               return 0;
+
        int ret;
        ret = l2x0_of_init(L2_AUX_VAL, L2_AUX_MASK);
        if (!ret) {
@@ -494,23 +645,47 @@ static int __init exynos4_l2x0_cache_init(void)
        l2x0_init(S5P_VA_L2CC, L2_AUX_VAL, L2_AUX_MASK);
        return 0;
 }
-
 early_initcall(exynos4_l2x0_cache_init);
 #endif
 
-int __init exynos_init(void)
+static int __init exynos5_l2_cache_init(void)
 {
-       printk(KERN_INFO "EXYNOS: Initializing architecture\n");
+       unsigned int val;
 
-       /* set idle function */
-       pm_idle = exynos_idle;
+       if (!soc_is_exynos5250())
+               return 0;
+
+       asm volatile("mrc p15, 0, %0, c1, c0, 0\n"
+                    "bic %0, %0, #(1 << 2)\n"  /* cache disable */
+                    "mcr p15, 0, %0, c1, c0, 0\n"
+                    "mrc p15, 1, %0, c9, c0, 2\n"
+                    : "=r"(val));
+
+       val |= (1 << 9) | (1 << 5) | (2 << 6) | (2 << 0);
 
-       return device_register(&exynos4_dev);
+       asm volatile("mcr p15, 1, %0, c9, c0, 2\n" : : "r"(val));
+       asm volatile("mrc p15, 0, %0, c1, c0, 0\n"
+                    "orr %0, %0, #(1 << 2)\n"  /* cache enable */
+                    "mcr p15, 0, %0, c1, c0, 0\n"
+                    : : "r"(val));
+
+       return 0;
+}
+early_initcall(exynos5_l2_cache_init);
+
+static int __init exynos_init(void)
+{
+       printk(KERN_INFO "EXYNOS: Initializing architecture\n");
+
+       if (soc_is_exynos5250())
+               return device_register(&exynos5_dev);
+       else
+               return device_register(&exynos4_dev);
 }
 
 /* uart registration process */
 
-void __init exynos4_init_uarts(struct s3c2410_uartcfg *cfg, int no)
+static void __init exynos_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 {
        struct s3c2410_uartcfg *tcfg = cfg;
        u32 ucnt;
@@ -518,69 +693,138 @@ void __init exynos4_init_uarts(struct s3c2410_uartcfg *cfg, int no)
        for (ucnt = 0; ucnt < no; ucnt++, tcfg++)
                tcfg->has_fracval = 1;
 
-       s3c24xx_init_uartdevs("exynos4210-uart", s5p_uart_resources, cfg, no);
+       if (soc_is_exynos5250())
+               s3c24xx_init_uartdevs("exynos4210-uart", exynos5_uart_resources, cfg, no);
+       else
+               s3c24xx_init_uartdevs("exynos4210-uart", exynos4_uart_resources, cfg, no);
 }
 
+static void __iomem *exynos_eint_base;
+
 static DEFINE_SPINLOCK(eint_lock);
 
 static unsigned int eint0_15_data[16];
 
-static unsigned int exynos4_get_irq_nr(unsigned int number)
+static inline int exynos4_irq_to_gpio(unsigned int irq)
 {
-       u32 ret = 0;
+       if (irq < IRQ_EINT(0))
+               return -EINVAL;
 
-       switch (number) {
-       case 0 ... 3:
-               ret = (number + IRQ_EINT0);
-               break;
-       case 4 ... 7:
-               ret = (number + (IRQ_EINT4 - 4));
-               break;
-       case 8 ... 15:
-               ret = (number + (IRQ_EINT8 - 8));
-               break;
-       default:
-               printk(KERN_ERR "number available : %d\n", number);
-       }
+       irq -= IRQ_EINT(0);
+       if (irq < 8)
+               return EXYNOS4_GPX0(irq);
+
+       irq -= 8;
+       if (irq < 8)
+               return EXYNOS4_GPX1(irq);
+
+       irq -= 8;
+       if (irq < 8)
+               return EXYNOS4_GPX2(irq);
+
+       irq -= 8;
+       if (irq < 8)
+               return EXYNOS4_GPX3(irq);
+
+       return -EINVAL;
+}
+
+static inline int exynos5_irq_to_gpio(unsigned int irq)
+{
+       if (irq < IRQ_EINT(0))
+               return -EINVAL;
+
+       irq -= IRQ_EINT(0);
+       if (irq < 8)
+               return EXYNOS5_GPX0(irq);
+
+       irq -= 8;
+       if (irq < 8)
+               return EXYNOS5_GPX1(irq);
+
+       irq -= 8;
+       if (irq < 8)
+               return EXYNOS5_GPX2(irq);
 
-       return ret;
+       irq -= 8;
+       if (irq < 8)
+               return EXYNOS5_GPX3(irq);
+
+       return -EINVAL;
 }
 
-static inline void exynos4_irq_eint_mask(struct irq_data *data)
+static unsigned int exynos4_eint0_15_src_int[16] = {
+       EXYNOS4_IRQ_EINT0,
+       EXYNOS4_IRQ_EINT1,
+       EXYNOS4_IRQ_EINT2,
+       EXYNOS4_IRQ_EINT3,
+       EXYNOS4_IRQ_EINT4,
+       EXYNOS4_IRQ_EINT5,
+       EXYNOS4_IRQ_EINT6,
+       EXYNOS4_IRQ_EINT7,
+       EXYNOS4_IRQ_EINT8,
+       EXYNOS4_IRQ_EINT9,
+       EXYNOS4_IRQ_EINT10,
+       EXYNOS4_IRQ_EINT11,
+       EXYNOS4_IRQ_EINT12,
+       EXYNOS4_IRQ_EINT13,
+       EXYNOS4_IRQ_EINT14,
+       EXYNOS4_IRQ_EINT15,
+};
+
+static unsigned int exynos5_eint0_15_src_int[16] = {
+       EXYNOS5_IRQ_EINT0,
+       EXYNOS5_IRQ_EINT1,
+       EXYNOS5_IRQ_EINT2,
+       EXYNOS5_IRQ_EINT3,
+       EXYNOS5_IRQ_EINT4,
+       EXYNOS5_IRQ_EINT5,
+       EXYNOS5_IRQ_EINT6,
+       EXYNOS5_IRQ_EINT7,
+       EXYNOS5_IRQ_EINT8,
+       EXYNOS5_IRQ_EINT9,
+       EXYNOS5_IRQ_EINT10,
+       EXYNOS5_IRQ_EINT11,
+       EXYNOS5_IRQ_EINT12,
+       EXYNOS5_IRQ_EINT13,
+       EXYNOS5_IRQ_EINT14,
+       EXYNOS5_IRQ_EINT15,
+};
+static inline void exynos_irq_eint_mask(struct irq_data *data)
 {
        u32 mask;
 
        spin_lock(&eint_lock);
-       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)));
+       mask = __raw_readl(EINT_MASK(exynos_eint_base, data->irq));
+       mask |= EINT_OFFSET_BIT(data->irq);
+       __raw_writel(mask, EINT_MASK(exynos_eint_base, data->irq));
        spin_unlock(&eint_lock);
 }
 
-static void exynos4_irq_eint_unmask(struct irq_data *data)
+static void exynos_irq_eint_unmask(struct irq_data *data)
 {
        u32 mask;
 
        spin_lock(&eint_lock);
-       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)));
+       mask = __raw_readl(EINT_MASK(exynos_eint_base, data->irq));
+       mask &= ~(EINT_OFFSET_BIT(data->irq));
+       __raw_writel(mask, EINT_MASK(exynos_eint_base, data->irq));
        spin_unlock(&eint_lock);
 }
 
-static inline void exynos4_irq_eint_ack(struct irq_data *data)
+static inline void exynos_irq_eint_ack(struct irq_data *data)
 {
-       __raw_writel(eint_irq_to_bit(data->irq),
-                    S5P_EINT_PEND(EINT_REG_NR(data->irq)));
+       __raw_writel(EINT_OFFSET_BIT(data->irq),
+                    EINT_PEND(exynos_eint_base, data->irq));
 }
 
-static void exynos4_irq_eint_maskack(struct irq_data *data)
+static void exynos_irq_eint_maskack(struct irq_data *data)
 {
-       exynos4_irq_eint_mask(data);
-       exynos4_irq_eint_ack(data);
+       exynos_irq_eint_mask(data);
+       exynos_irq_eint_ack(data);
 }
 
-static int exynos4_irq_eint_set_type(struct irq_data *data, unsigned int type)
+static int exynos_irq_eint_set_type(struct irq_data *data, unsigned int type)
 {
        int offs = EINT_OFFSET(data->irq);
        int shift;
@@ -617,39 +861,27 @@ static int exynos4_irq_eint_set_type(struct irq_data *data, unsigned int type)
        mask = 0x7 << shift;
 
        spin_lock(&eint_lock);
-       ctrl = __raw_readl(S5P_EINT_CON(EINT_REG_NR(data->irq)));
+       ctrl = __raw_readl(EINT_CON(exynos_eint_base, data->irq));
        ctrl &= ~mask;
        ctrl |= newvalue << shift;
-       __raw_writel(ctrl, S5P_EINT_CON(EINT_REG_NR(data->irq)));
+       __raw_writel(ctrl, EINT_CON(exynos_eint_base, data->irq));
        spin_unlock(&eint_lock);
 
-       switch (offs) {
-       case 0 ... 7:
-               s3c_gpio_cfgpin(EINT_GPIO_0(offs & 0x7), EINT_MODE);
-               break;
-       case 8 ... 15:
-               s3c_gpio_cfgpin(EINT_GPIO_1(offs & 0x7), EINT_MODE);
-               break;
-       case 16 ... 23:
-               s3c_gpio_cfgpin(EINT_GPIO_2(offs & 0x7), EINT_MODE);
-               break;
-       case 24 ... 31:
-               s3c_gpio_cfgpin(EINT_GPIO_3(offs & 0x7), EINT_MODE);
-               break;
-       default:
-               printk(KERN_ERR "No such irq number %d", offs);
-       }
+       if (soc_is_exynos5250())
+               s3c_gpio_cfgpin(exynos5_irq_to_gpio(data->irq), S3C_GPIO_SFN(0xf));
+       else
+               s3c_gpio_cfgpin(exynos4_irq_to_gpio(data->irq), S3C_GPIO_SFN(0xf));
 
        return 0;
 }
 
-static struct irq_chip exynos4_irq_eint = {
-       .name           = "exynos4-eint",
-       .irq_mask       = exynos4_irq_eint_mask,
-       .irq_unmask     = exynos4_irq_eint_unmask,
-       .irq_mask_ack   = exynos4_irq_eint_maskack,
-       .irq_ack        = exynos4_irq_eint_ack,
-       .irq_set_type   = exynos4_irq_eint_set_type,
+static struct irq_chip exynos_irq_eint = {
+       .name           = "exynos-eint",
+       .irq_mask       = exynos_irq_eint_mask,
+       .irq_unmask     = exynos_irq_eint_unmask,
+       .irq_mask_ack   = exynos_irq_eint_maskack,
+       .irq_ack        = exynos_irq_eint_ack,
+       .irq_set_type   = exynos_irq_eint_set_type,
 #ifdef CONFIG_PM
        .irq_set_wake   = s3c_irqext_wake,
 #endif
@@ -664,12 +896,12 @@ static struct irq_chip exynos4_irq_eint = {
  *
  * Each EINT pend/mask registers handle eight of them.
  */
-static inline void exynos4_irq_demux_eint(unsigned int start)
+static inline void exynos_irq_demux_eint(unsigned int start)
 {
        unsigned int irq;
 
-       u32 status = __raw_readl(S5P_EINT_PEND(EINT_REG_NR(start)));
-       u32 mask = __raw_readl(S5P_EINT_MASK(EINT_REG_NR(start)));
+       u32 status = __raw_readl(EINT_PEND(exynos_eint_base, start));
+       u32 mask = __raw_readl(EINT_MASK(exynos_eint_base, start));
 
        status &= ~mask;
        status &= 0xff;
@@ -681,16 +913,16 @@ static inline void exynos4_irq_demux_eint(unsigned int start)
        }
 }
 
-static void exynos4_irq_demux_eint16_31(unsigned int irq, struct irq_desc *desc)
+static void exynos_irq_demux_eint16_31(unsigned int irq, struct irq_desc *desc)
 {
        struct irq_chip *chip = irq_get_chip(irq);
        chained_irq_enter(chip, desc);
-       exynos4_irq_demux_eint(IRQ_EINT(16));
-       exynos4_irq_demux_eint(IRQ_EINT(24));
+       exynos_irq_demux_eint(IRQ_EINT(16));
+       exynos_irq_demux_eint(IRQ_EINT(24));
        chained_irq_exit(chip, desc);
 }
 
-static void exynos4_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
+static void exynos_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
 {
        u32 *irq_data = irq_get_handler_data(irq);
        struct irq_chip *chip = irq_get_chip(irq);
@@ -707,27 +939,44 @@ static void exynos4_irq_eint0_15(unsigned int irq, struct irq_desc *desc)
        chained_irq_exit(chip, desc);
 }
 
-int __init exynos4_init_irq_eint(void)
+static int __init exynos_init_irq_eint(void)
 {
        int irq;
 
+       if (soc_is_exynos5250())
+               exynos_eint_base = ioremap(EXYNOS5_PA_GPIO1, SZ_4K);
+       else
+               exynos_eint_base = ioremap(EXYNOS4_PA_GPIO2, SZ_4K);
+
+       if (exynos_eint_base == NULL) {
+               pr_err("unable to ioremap for EINT base address\n");
+               return -ENOMEM;
+       }
+
        for (irq = 0 ; irq <= 31 ; irq++) {
-               irq_set_chip_and_handler(IRQ_EINT(irq), &exynos4_irq_eint,
+               irq_set_chip_and_handler(IRQ_EINT(irq), &exynos_irq_eint,
                                         handle_level_irq);
                set_irq_flags(IRQ_EINT(irq), IRQF_VALID);
        }
 
-       irq_set_chained_handler(IRQ_EINT16_31, exynos4_irq_demux_eint16_31);
+       irq_set_chained_handler(EXYNOS_IRQ_EINT16_31, exynos_irq_demux_eint16_31);
 
        for (irq = 0 ; irq <= 15 ; irq++) {
                eint0_15_data[irq] = IRQ_EINT(irq);
 
-               irq_set_handler_data(exynos4_get_irq_nr(irq),
-                                    &eint0_15_data[irq]);
-               irq_set_chained_handler(exynos4_get_irq_nr(irq),
-                                       exynos4_irq_eint0_15);
+               if (soc_is_exynos5250()) {
+                       irq_set_handler_data(exynos5_eint0_15_src_int[irq],
+                                            &eint0_15_data[irq]);
+                       irq_set_chained_handler(exynos5_eint0_15_src_int[irq],
+                                               exynos_irq_eint0_15);
+               } else {
+                       irq_set_handler_data(exynos4_eint0_15_src_int[irq],
+                                            &eint0_15_data[irq]);
+                       irq_set_chained_handler(exynos4_eint0_15_src_int[irq],
+                                               exynos_irq_eint0_15);
+               }
        }
 
        return 0;
 }
-arch_initcall(exynos4_init_irq_eint);
+arch_initcall(exynos_init_irq_eint);