Move irq-mmp driver from mach-mmp directory into irqchip directory.
It's used to support multiple platform.
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
# Makefile for Marvell's PXA168 processors line
#
-obj-y += common.o devices.o time.o irq.o
+obj-y += common.o devices.o time.o
# SoC support
obj-$(CONFIG_CPU_PXA168) += pxa168.o
extern void timer_init(int irq);
-extern void __init icu_init_irq(void);
extern void __init mmp_map_io(void);
extern void mmp_restart(enum reboot_mode, const char *);
extern void __init pxa168_clk_init(void);
#include <linux/reboot.h>
extern void pxa168_timer_init(void);
+extern void __init icu_init_irq(void);
extern void __init pxa168_init_irq(void);
extern void pxa168_restart(enum reboot_mode, const char *);
extern void pxa168_clear_keypad_wakeup(void);
#define __ASM_MACH_PXA910_H
extern void pxa910_timer_init(void);
+extern void __init icu_init_irq(void);
extern void __init pxa910_init_irq(void);
#include <linux/i2c.h>
+++ /dev/null
-/*
- * linux/arch/arm/mach-mmp/irq.c
- *
- * Generic IRQ handling, GPIO IRQ demultiplexing, etc.
- * Copyright (C) 2008 - 2012 Marvell Technology Group Ltd.
- *
- * Author: Bin Yang <bin.yang@marvell.com>
- * Haojian Zhuang <haojian.zhuang@gmail.com>
- *
- * 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/module.h>
-#include <linux/init.h>
-#include <linux/irq.h>
-#include <linux/irqdomain.h>
-#include <linux/io.h>
-#include <linux/ioport.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-
-#include <mach/irqs.h>
-
-#ifdef CONFIG_CPU_MMP2
-#include <mach/pm-mmp2.h>
-#endif
-#ifdef CONFIG_CPU_PXA910
-#include <mach/pm-pxa910.h>
-#endif
-
-#include "common.h"
-
-#define MAX_ICU_NR 16
-
-struct icu_chip_data {
- int nr_irqs;
- unsigned int virq_base;
- unsigned int cascade_irq;
- void __iomem *reg_status;
- void __iomem *reg_mask;
- unsigned int conf_enable;
- unsigned int conf_disable;
- unsigned int conf_mask;
- unsigned int clr_mfp_irq_base;
- unsigned int clr_mfp_hwirq;
- struct irq_domain *domain;
-};
-
-struct mmp_intc_conf {
- unsigned int conf_enable;
- unsigned int conf_disable;
- unsigned int conf_mask;
-};
-
-void __iomem *mmp_icu_base;
-static struct icu_chip_data icu_data[MAX_ICU_NR];
-static int max_icu_nr;
-
-extern void mmp2_clear_pmic_int(void);
-
-static void icu_mask_ack_irq(struct irq_data *d)
-{
- struct irq_domain *domain = d->domain;
- struct icu_chip_data *data = (struct icu_chip_data *)domain->host_data;
- int hwirq;
- u32 r;
-
- hwirq = d->irq - data->virq_base;
- if (data == &icu_data[0]) {
- r = readl_relaxed(mmp_icu_base + (hwirq << 2));
- r &= ~data->conf_mask;
- r |= data->conf_disable;
- writel_relaxed(r, mmp_icu_base + (hwirq << 2));
- } else {
-#ifdef CONFIG_CPU_MMP2
- if ((data->virq_base == data->clr_mfp_irq_base)
- && (hwirq == data->clr_mfp_hwirq))
- mmp2_clear_pmic_int();
-#endif
- r = readl_relaxed(data->reg_mask) | (1 << hwirq);
- writel_relaxed(r, data->reg_mask);
- }
-}
-
-static void icu_mask_irq(struct irq_data *d)
-{
- struct irq_domain *domain = d->domain;
- struct icu_chip_data *data = (struct icu_chip_data *)domain->host_data;
- int hwirq;
- u32 r;
-
- hwirq = d->irq - data->virq_base;
- if (data == &icu_data[0]) {
- r = readl_relaxed(mmp_icu_base + (hwirq << 2));
- r &= ~data->conf_mask;
- r |= data->conf_disable;
- writel_relaxed(r, mmp_icu_base + (hwirq << 2));
- } else {
- r = readl_relaxed(data->reg_mask) | (1 << hwirq);
- writel_relaxed(r, data->reg_mask);
- }
-}
-
-static void icu_unmask_irq(struct irq_data *d)
-{
- struct irq_domain *domain = d->domain;
- struct icu_chip_data *data = (struct icu_chip_data *)domain->host_data;
- int hwirq;
- u32 r;
-
- hwirq = d->irq - data->virq_base;
- if (data == &icu_data[0]) {
- r = readl_relaxed(mmp_icu_base + (hwirq << 2));
- r &= ~data->conf_mask;
- r |= data->conf_enable;
- writel_relaxed(r, mmp_icu_base + (hwirq << 2));
- } else {
- r = readl_relaxed(data->reg_mask) & ~(1 << hwirq);
- writel_relaxed(r, data->reg_mask);
- }
-}
-
-static struct irq_chip icu_irq_chip = {
- .name = "icu_irq",
- .irq_mask = icu_mask_irq,
- .irq_mask_ack = icu_mask_ack_irq,
- .irq_unmask = icu_unmask_irq,
-};
-
-static void icu_mux_irq_demux(unsigned int irq, struct irq_desc *desc)
-{
- struct irq_domain *domain;
- struct icu_chip_data *data;
- int i;
- unsigned long mask, status, n;
-
- for (i = 1; i < max_icu_nr; i++) {
- if (irq == icu_data[i].cascade_irq) {
- domain = icu_data[i].domain;
- data = (struct icu_chip_data *)domain->host_data;
- break;
- }
- }
- if (i >= max_icu_nr) {
- pr_err("Spurious irq %d in MMP INTC\n", irq);
- return;
- }
-
- mask = readl_relaxed(data->reg_mask);
- while (1) {
- status = readl_relaxed(data->reg_status) & ~mask;
- if (status == 0)
- break;
- for_each_set_bit(n, &status, BITS_PER_LONG) {
- generic_handle_irq(icu_data[i].virq_base + n);
- }
- }
-}
-
-static int mmp_irq_domain_map(struct irq_domain *d, unsigned int irq,
- irq_hw_number_t hw)
-{
- irq_set_chip_and_handler(irq, &icu_irq_chip, handle_level_irq);
- set_irq_flags(irq, IRQF_VALID);
- return 0;
-}
-
-static int mmp_irq_domain_xlate(struct irq_domain *d, struct device_node *node,
- const u32 *intspec, unsigned int intsize,
- unsigned long *out_hwirq,
- unsigned int *out_type)
-{
- *out_hwirq = intspec[0];
- return 0;
-}
-
-const struct irq_domain_ops mmp_irq_domain_ops = {
- .map = mmp_irq_domain_map,
- .xlate = mmp_irq_domain_xlate,
-};
-
-static struct mmp_intc_conf mmp_conf = {
- .conf_enable = 0x51,
- .conf_disable = 0x0,
- .conf_mask = 0x7f,
-};
-
-static struct mmp_intc_conf mmp2_conf = {
- .conf_enable = 0x20,
- .conf_disable = 0x0,
- .conf_mask = 0x7f,
-};
-
-/* MMP (ARMv5) */
-void __init icu_init_irq(void)
-{
- int irq;
-
- max_icu_nr = 1;
- mmp_icu_base = ioremap(0xd4282000, 0x1000);
- icu_data[0].conf_enable = mmp_conf.conf_enable;
- icu_data[0].conf_disable = mmp_conf.conf_disable;
- icu_data[0].conf_mask = mmp_conf.conf_mask;
- icu_data[0].nr_irqs = 64;
- icu_data[0].virq_base = 0;
- icu_data[0].domain = irq_domain_add_legacy(NULL, 64, 0, 0,
- &irq_domain_simple_ops,
- &icu_data[0]);
- for (irq = 0; irq < 64; irq++) {
- icu_mask_irq(irq_get_irq_data(irq));
- irq_set_chip_and_handler(irq, &icu_irq_chip, handle_level_irq);
- set_irq_flags(irq, IRQF_VALID);
- }
- irq_set_default_host(icu_data[0].domain);
-#ifdef CONFIG_CPU_PXA910
- icu_irq_chip.irq_set_wake = pxa910_set_wake;
-#endif
-}
-
-/* MMP2 (ARMv7) */
-void __init mmp2_init_icu(void)
-{
- int irq;
-
- max_icu_nr = 8;
- mmp_icu_base = ioremap(0xd4282000, 0x1000);
- icu_data[0].conf_enable = mmp2_conf.conf_enable;
- icu_data[0].conf_disable = mmp2_conf.conf_disable;
- icu_data[0].conf_mask = mmp2_conf.conf_mask;
- icu_data[0].nr_irqs = 64;
- icu_data[0].virq_base = 0;
- icu_data[0].domain = irq_domain_add_legacy(NULL, 64, 0, 0,
- &irq_domain_simple_ops,
- &icu_data[0]);
- icu_data[1].reg_status = mmp_icu_base + 0x150;
- icu_data[1].reg_mask = mmp_icu_base + 0x168;
- icu_data[1].clr_mfp_irq_base = IRQ_MMP2_PMIC_BASE;
- icu_data[1].clr_mfp_hwirq = IRQ_MMP2_PMIC - IRQ_MMP2_PMIC_BASE;
- icu_data[1].nr_irqs = 2;
- icu_data[1].cascade_irq = 4;
- icu_data[1].virq_base = IRQ_MMP2_PMIC_BASE;
- icu_data[1].domain = irq_domain_add_legacy(NULL, icu_data[1].nr_irqs,
- icu_data[1].virq_base, 0,
- &irq_domain_simple_ops,
- &icu_data[1]);
- icu_data[2].reg_status = mmp_icu_base + 0x154;
- icu_data[2].reg_mask = mmp_icu_base + 0x16c;
- icu_data[2].nr_irqs = 2;
- icu_data[2].cascade_irq = 5;
- icu_data[2].virq_base = IRQ_MMP2_RTC_BASE;
- icu_data[2].domain = irq_domain_add_legacy(NULL, icu_data[2].nr_irqs,
- icu_data[2].virq_base, 0,
- &irq_domain_simple_ops,
- &icu_data[2]);
- icu_data[3].reg_status = mmp_icu_base + 0x180;
- icu_data[3].reg_mask = mmp_icu_base + 0x17c;
- icu_data[3].nr_irqs = 3;
- icu_data[3].cascade_irq = 9;
- icu_data[3].virq_base = IRQ_MMP2_KEYPAD_BASE;
- icu_data[3].domain = irq_domain_add_legacy(NULL, icu_data[3].nr_irqs,
- icu_data[3].virq_base, 0,
- &irq_domain_simple_ops,
- &icu_data[3]);
- icu_data[4].reg_status = mmp_icu_base + 0x158;
- icu_data[4].reg_mask = mmp_icu_base + 0x170;
- icu_data[4].nr_irqs = 5;
- icu_data[4].cascade_irq = 17;
- icu_data[4].virq_base = IRQ_MMP2_TWSI_BASE;
- icu_data[4].domain = irq_domain_add_legacy(NULL, icu_data[4].nr_irqs,
- icu_data[4].virq_base, 0,
- &irq_domain_simple_ops,
- &icu_data[4]);
- icu_data[5].reg_status = mmp_icu_base + 0x15c;
- icu_data[5].reg_mask = mmp_icu_base + 0x174;
- icu_data[5].nr_irqs = 15;
- icu_data[5].cascade_irq = 35;
- icu_data[5].virq_base = IRQ_MMP2_MISC_BASE;
- icu_data[5].domain = irq_domain_add_legacy(NULL, icu_data[5].nr_irqs,
- icu_data[5].virq_base, 0,
- &irq_domain_simple_ops,
- &icu_data[5]);
- icu_data[6].reg_status = mmp_icu_base + 0x160;
- icu_data[6].reg_mask = mmp_icu_base + 0x178;
- icu_data[6].nr_irqs = 2;
- icu_data[6].cascade_irq = 51;
- icu_data[6].virq_base = IRQ_MMP2_MIPI_HSI1_BASE;
- icu_data[6].domain = irq_domain_add_legacy(NULL, icu_data[6].nr_irqs,
- icu_data[6].virq_base, 0,
- &irq_domain_simple_ops,
- &icu_data[6]);
- icu_data[7].reg_status = mmp_icu_base + 0x188;
- icu_data[7].reg_mask = mmp_icu_base + 0x184;
- icu_data[7].nr_irqs = 2;
- icu_data[7].cascade_irq = 55;
- icu_data[7].virq_base = IRQ_MMP2_MIPI_HSI0_BASE;
- icu_data[7].domain = irq_domain_add_legacy(NULL, icu_data[7].nr_irqs,
- icu_data[7].virq_base, 0,
- &irq_domain_simple_ops,
- &icu_data[7]);
- for (irq = 0; irq < IRQ_MMP2_MUX_END; irq++) {
- icu_mask_irq(irq_get_irq_data(irq));
- switch (irq) {
- case IRQ_MMP2_PMIC_MUX:
- case IRQ_MMP2_RTC_MUX:
- case IRQ_MMP2_KEYPAD_MUX:
- case IRQ_MMP2_TWSI_MUX:
- case IRQ_MMP2_MISC_MUX:
- case IRQ_MMP2_MIPI_HSI1_MUX:
- case IRQ_MMP2_MIPI_HSI0_MUX:
- irq_set_chip(irq, &icu_irq_chip);
- irq_set_chained_handler(irq, icu_mux_irq_demux);
- break;
- default:
- irq_set_chip_and_handler(irq, &icu_irq_chip,
- handle_level_irq);
- break;
- }
- set_irq_flags(irq, IRQF_VALID);
- }
- irq_set_default_host(icu_data[0].domain);
-#ifdef CONFIG_CPU_MMP2
- icu_irq_chip.irq_set_wake = mmp2_set_wake;
-#endif
-}
-
-#ifdef CONFIG_OF
-static const struct of_device_id intc_ids[] __initconst = {
- { .compatible = "mrvl,mmp-intc", .data = &mmp_conf },
- { .compatible = "mrvl,mmp2-intc", .data = &mmp2_conf },
- {}
-};
-
-static const struct of_device_id mmp_mux_irq_match[] __initconst = {
- { .compatible = "mrvl,mmp2-mux-intc" },
- {}
-};
-
-int __init mmp2_mux_init(struct device_node *parent)
-{
- struct device_node *node;
- const struct of_device_id *of_id;
- struct resource res;
- int i, irq_base, ret, irq;
- u32 nr_irqs, mfp_irq;
-
- node = parent;
- max_icu_nr = 1;
- for (i = 1; i < MAX_ICU_NR; i++) {
- node = of_find_matching_node(node, mmp_mux_irq_match);
- if (!node)
- break;
- of_id = of_match_node(&mmp_mux_irq_match[0], node);
- ret = of_property_read_u32(node, "mrvl,intc-nr-irqs",
- &nr_irqs);
- if (ret) {
- pr_err("Not found mrvl,intc-nr-irqs property\n");
- ret = -EINVAL;
- goto err;
- }
- ret = of_address_to_resource(node, 0, &res);
- if (ret < 0) {
- pr_err("Not found reg property\n");
- ret = -EINVAL;
- goto err;
- }
- icu_data[i].reg_status = mmp_icu_base + res.start;
- ret = of_address_to_resource(node, 1, &res);
- if (ret < 0) {
- pr_err("Not found reg property\n");
- ret = -EINVAL;
- goto err;
- }
- icu_data[i].reg_mask = mmp_icu_base + res.start;
- icu_data[i].cascade_irq = irq_of_parse_and_map(node, 0);
- if (!icu_data[i].cascade_irq) {
- ret = -EINVAL;
- goto err;
- }
-
- irq_base = irq_alloc_descs(-1, 0, nr_irqs, 0);
- if (irq_base < 0) {
- pr_err("Failed to allocate IRQ numbers for mux intc\n");
- ret = irq_base;
- goto err;
- }
- if (!of_property_read_u32(node, "mrvl,clr-mfp-irq",
- &mfp_irq)) {
- icu_data[i].clr_mfp_irq_base = irq_base;
- icu_data[i].clr_mfp_hwirq = mfp_irq;
- }
- irq_set_chained_handler(icu_data[i].cascade_irq,
- icu_mux_irq_demux);
- icu_data[i].nr_irqs = nr_irqs;
- icu_data[i].virq_base = irq_base;
- icu_data[i].domain = irq_domain_add_legacy(node, nr_irqs,
- irq_base, 0,
- &mmp_irq_domain_ops,
- &icu_data[i]);
- for (irq = irq_base; irq < irq_base + nr_irqs; irq++)
- icu_mask_irq(irq_get_irq_data(irq));
- }
- max_icu_nr = i;
- return 0;
-err:
- of_node_put(node);
- max_icu_nr = i;
- return ret;
-}
-
-void __init mmp_dt_irq_init(void)
-{
- struct device_node *node;
- const struct of_device_id *of_id;
- struct mmp_intc_conf *conf;
- int nr_irqs, irq_base, ret, irq;
-
- node = of_find_matching_node(NULL, intc_ids);
- if (!node) {
- pr_err("Failed to find interrupt controller in arch-mmp\n");
- return;
- }
- of_id = of_match_node(intc_ids, node);
- conf = of_id->data;
-
- ret = of_property_read_u32(node, "mrvl,intc-nr-irqs", &nr_irqs);
- if (ret) {
- pr_err("Not found mrvl,intc-nr-irqs property\n");
- return;
- }
-
- mmp_icu_base = of_iomap(node, 0);
- if (!mmp_icu_base) {
- pr_err("Failed to get interrupt controller register\n");
- return;
- }
-
- irq_base = irq_alloc_descs(-1, 0, nr_irqs - NR_IRQS_LEGACY, 0);
- if (irq_base < 0) {
- pr_err("Failed to allocate IRQ numbers\n");
- goto err;
- } else if (irq_base != NR_IRQS_LEGACY) {
- pr_err("ICU's irqbase should be started from 0\n");
- goto err;
- }
- icu_data[0].conf_enable = conf->conf_enable;
- icu_data[0].conf_disable = conf->conf_disable;
- icu_data[0].conf_mask = conf->conf_mask;
- icu_data[0].nr_irqs = nr_irqs;
- icu_data[0].virq_base = 0;
- icu_data[0].domain = irq_domain_add_legacy(node, nr_irqs, 0, 0,
- &mmp_irq_domain_ops,
- &icu_data[0]);
- irq_set_default_host(icu_data[0].domain);
- for (irq = 0; irq < nr_irqs; irq++)
- icu_mask_irq(irq_get_irq_data(irq));
- mmp2_mux_init(node);
- return;
-err:
- iounmap(mmp_icu_base);
-}
-#endif
#include <mach/dma.h>
#include <mach/mfp.h>
#include <mach/devices.h>
+#include <mach/pxa910.h>
#include "common.h"
obj-$(CONFIG_ARCH_BCM2835) += irq-bcm2835.o
obj-$(CONFIG_ARCH_EXYNOS) += exynos-combiner.o
+obj-$(CONFIG_ARCH_MMP) += irq-mmp.o
obj-$(CONFIG_ARCH_MVEBU) += irq-armada-370-xp.o
obj-$(CONFIG_ARCH_MXS) += irq-mxs.o
obj-$(CONFIG_ARCH_S3C24XX) += irq-s3c24xx.o
--- /dev/null
+/*
+ * linux/arch/arm/mach-mmp/irq.c
+ *
+ * Generic IRQ handling, GPIO IRQ demultiplexing, etc.
+ * Copyright (C) 2008 - 2012 Marvell Technology Group Ltd.
+ *
+ * Author: Bin Yang <bin.yang@marvell.com>
+ * Haojian Zhuang <haojian.zhuang@gmail.com>
+ *
+ * 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/module.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/irqdomain.h>
+#include <linux/io.h>
+#include <linux/ioport.h>
+#include <linux/of_address.h>
+#include <linux/of_irq.h>
+
+#include <mach/irqs.h>
+
+#ifdef CONFIG_CPU_MMP2
+#include <mach/pm-mmp2.h>
+#endif
+#ifdef CONFIG_CPU_PXA910
+#include <mach/pm-pxa910.h>
+#endif
+
+#define MAX_ICU_NR 16
+
+struct icu_chip_data {
+ int nr_irqs;
+ unsigned int virq_base;
+ unsigned int cascade_irq;
+ void __iomem *reg_status;
+ void __iomem *reg_mask;
+ unsigned int conf_enable;
+ unsigned int conf_disable;
+ unsigned int conf_mask;
+ unsigned int clr_mfp_irq_base;
+ unsigned int clr_mfp_hwirq;
+ struct irq_domain *domain;
+};
+
+struct mmp_intc_conf {
+ unsigned int conf_enable;
+ unsigned int conf_disable;
+ unsigned int conf_mask;
+};
+
+void __iomem *mmp_icu_base;
+static struct icu_chip_data icu_data[MAX_ICU_NR];
+static int max_icu_nr;
+
+extern void mmp2_clear_pmic_int(void);
+
+static void icu_mask_ack_irq(struct irq_data *d)
+{
+ struct irq_domain *domain = d->domain;
+ struct icu_chip_data *data = (struct icu_chip_data *)domain->host_data;
+ int hwirq;
+ u32 r;
+
+ hwirq = d->irq - data->virq_base;
+ if (data == &icu_data[0]) {
+ r = readl_relaxed(mmp_icu_base + (hwirq << 2));
+ r &= ~data->conf_mask;
+ r |= data->conf_disable;
+ writel_relaxed(r, mmp_icu_base + (hwirq << 2));
+ } else {
+#ifdef CONFIG_CPU_MMP2
+ if ((data->virq_base == data->clr_mfp_irq_base)
+ && (hwirq == data->clr_mfp_hwirq))
+ mmp2_clear_pmic_int();
+#endif
+ r = readl_relaxed(data->reg_mask) | (1 << hwirq);
+ writel_relaxed(r, data->reg_mask);
+ }
+}
+
+static void icu_mask_irq(struct irq_data *d)
+{
+ struct irq_domain *domain = d->domain;
+ struct icu_chip_data *data = (struct icu_chip_data *)domain->host_data;
+ int hwirq;
+ u32 r;
+
+ hwirq = d->irq - data->virq_base;
+ if (data == &icu_data[0]) {
+ r = readl_relaxed(mmp_icu_base + (hwirq << 2));
+ r &= ~data->conf_mask;
+ r |= data->conf_disable;
+ writel_relaxed(r, mmp_icu_base + (hwirq << 2));
+ } else {
+ r = readl_relaxed(data->reg_mask) | (1 << hwirq);
+ writel_relaxed(r, data->reg_mask);
+ }
+}
+
+static void icu_unmask_irq(struct irq_data *d)
+{
+ struct irq_domain *domain = d->domain;
+ struct icu_chip_data *data = (struct icu_chip_data *)domain->host_data;
+ int hwirq;
+ u32 r;
+
+ hwirq = d->irq - data->virq_base;
+ if (data == &icu_data[0]) {
+ r = readl_relaxed(mmp_icu_base + (hwirq << 2));
+ r &= ~data->conf_mask;
+ r |= data->conf_enable;
+ writel_relaxed(r, mmp_icu_base + (hwirq << 2));
+ } else {
+ r = readl_relaxed(data->reg_mask) & ~(1 << hwirq);
+ writel_relaxed(r, data->reg_mask);
+ }
+}
+
+static struct irq_chip icu_irq_chip = {
+ .name = "icu_irq",
+ .irq_mask = icu_mask_irq,
+ .irq_mask_ack = icu_mask_ack_irq,
+ .irq_unmask = icu_unmask_irq,
+};
+
+static void icu_mux_irq_demux(unsigned int irq, struct irq_desc *desc)
+{
+ struct irq_domain *domain;
+ struct icu_chip_data *data;
+ int i;
+ unsigned long mask, status, n;
+
+ for (i = 1; i < max_icu_nr; i++) {
+ if (irq == icu_data[i].cascade_irq) {
+ domain = icu_data[i].domain;
+ data = (struct icu_chip_data *)domain->host_data;
+ break;
+ }
+ }
+ if (i >= max_icu_nr) {
+ pr_err("Spurious irq %d in MMP INTC\n", irq);
+ return;
+ }
+
+ mask = readl_relaxed(data->reg_mask);
+ while (1) {
+ status = readl_relaxed(data->reg_status) & ~mask;
+ if (status == 0)
+ break;
+ for_each_set_bit(n, &status, BITS_PER_LONG) {
+ generic_handle_irq(icu_data[i].virq_base + n);
+ }
+ }
+}
+
+static int mmp_irq_domain_map(struct irq_domain *d, unsigned int irq,
+ irq_hw_number_t hw)
+{
+ irq_set_chip_and_handler(irq, &icu_irq_chip, handle_level_irq);
+ set_irq_flags(irq, IRQF_VALID);
+ return 0;
+}
+
+static int mmp_irq_domain_xlate(struct irq_domain *d, struct device_node *node,
+ const u32 *intspec, unsigned int intsize,
+ unsigned long *out_hwirq,
+ unsigned int *out_type)
+{
+ *out_hwirq = intspec[0];
+ return 0;
+}
+
+const struct irq_domain_ops mmp_irq_domain_ops = {
+ .map = mmp_irq_domain_map,
+ .xlate = mmp_irq_domain_xlate,
+};
+
+static struct mmp_intc_conf mmp_conf = {
+ .conf_enable = 0x51,
+ .conf_disable = 0x0,
+ .conf_mask = 0x7f,
+};
+
+static struct mmp_intc_conf mmp2_conf = {
+ .conf_enable = 0x20,
+ .conf_disable = 0x0,
+ .conf_mask = 0x7f,
+};
+
+/* MMP (ARMv5) */
+void __init icu_init_irq(void)
+{
+ int irq;
+
+ max_icu_nr = 1;
+ mmp_icu_base = ioremap(0xd4282000, 0x1000);
+ icu_data[0].conf_enable = mmp_conf.conf_enable;
+ icu_data[0].conf_disable = mmp_conf.conf_disable;
+ icu_data[0].conf_mask = mmp_conf.conf_mask;
+ icu_data[0].nr_irqs = 64;
+ icu_data[0].virq_base = 0;
+ icu_data[0].domain = irq_domain_add_legacy(NULL, 64, 0, 0,
+ &irq_domain_simple_ops,
+ &icu_data[0]);
+ for (irq = 0; irq < 64; irq++) {
+ icu_mask_irq(irq_get_irq_data(irq));
+ irq_set_chip_and_handler(irq, &icu_irq_chip, handle_level_irq);
+ set_irq_flags(irq, IRQF_VALID);
+ }
+ irq_set_default_host(icu_data[0].domain);
+#ifdef CONFIG_CPU_PXA910
+ icu_irq_chip.irq_set_wake = pxa910_set_wake;
+#endif
+}
+
+/* MMP2 (ARMv7) */
+void __init mmp2_init_icu(void)
+{
+ int irq;
+
+ max_icu_nr = 8;
+ mmp_icu_base = ioremap(0xd4282000, 0x1000);
+ icu_data[0].conf_enable = mmp2_conf.conf_enable;
+ icu_data[0].conf_disable = mmp2_conf.conf_disable;
+ icu_data[0].conf_mask = mmp2_conf.conf_mask;
+ icu_data[0].nr_irqs = 64;
+ icu_data[0].virq_base = 0;
+ icu_data[0].domain = irq_domain_add_legacy(NULL, 64, 0, 0,
+ &irq_domain_simple_ops,
+ &icu_data[0]);
+ icu_data[1].reg_status = mmp_icu_base + 0x150;
+ icu_data[1].reg_mask = mmp_icu_base + 0x168;
+ icu_data[1].clr_mfp_irq_base = IRQ_MMP2_PMIC_BASE;
+ icu_data[1].clr_mfp_hwirq = IRQ_MMP2_PMIC - IRQ_MMP2_PMIC_BASE;
+ icu_data[1].nr_irqs = 2;
+ icu_data[1].cascade_irq = 4;
+ icu_data[1].virq_base = IRQ_MMP2_PMIC_BASE;
+ icu_data[1].domain = irq_domain_add_legacy(NULL, icu_data[1].nr_irqs,
+ icu_data[1].virq_base, 0,
+ &irq_domain_simple_ops,
+ &icu_data[1]);
+ icu_data[2].reg_status = mmp_icu_base + 0x154;
+ icu_data[2].reg_mask = mmp_icu_base + 0x16c;
+ icu_data[2].nr_irqs = 2;
+ icu_data[2].cascade_irq = 5;
+ icu_data[2].virq_base = IRQ_MMP2_RTC_BASE;
+ icu_data[2].domain = irq_domain_add_legacy(NULL, icu_data[2].nr_irqs,
+ icu_data[2].virq_base, 0,
+ &irq_domain_simple_ops,
+ &icu_data[2]);
+ icu_data[3].reg_status = mmp_icu_base + 0x180;
+ icu_data[3].reg_mask = mmp_icu_base + 0x17c;
+ icu_data[3].nr_irqs = 3;
+ icu_data[3].cascade_irq = 9;
+ icu_data[3].virq_base = IRQ_MMP2_KEYPAD_BASE;
+ icu_data[3].domain = irq_domain_add_legacy(NULL, icu_data[3].nr_irqs,
+ icu_data[3].virq_base, 0,
+ &irq_domain_simple_ops,
+ &icu_data[3]);
+ icu_data[4].reg_status = mmp_icu_base + 0x158;
+ icu_data[4].reg_mask = mmp_icu_base + 0x170;
+ icu_data[4].nr_irqs = 5;
+ icu_data[4].cascade_irq = 17;
+ icu_data[4].virq_base = IRQ_MMP2_TWSI_BASE;
+ icu_data[4].domain = irq_domain_add_legacy(NULL, icu_data[4].nr_irqs,
+ icu_data[4].virq_base, 0,
+ &irq_domain_simple_ops,
+ &icu_data[4]);
+ icu_data[5].reg_status = mmp_icu_base + 0x15c;
+ icu_data[5].reg_mask = mmp_icu_base + 0x174;
+ icu_data[5].nr_irqs = 15;
+ icu_data[5].cascade_irq = 35;
+ icu_data[5].virq_base = IRQ_MMP2_MISC_BASE;
+ icu_data[5].domain = irq_domain_add_legacy(NULL, icu_data[5].nr_irqs,
+ icu_data[5].virq_base, 0,
+ &irq_domain_simple_ops,
+ &icu_data[5]);
+ icu_data[6].reg_status = mmp_icu_base + 0x160;
+ icu_data[6].reg_mask = mmp_icu_base + 0x178;
+ icu_data[6].nr_irqs = 2;
+ icu_data[6].cascade_irq = 51;
+ icu_data[6].virq_base = IRQ_MMP2_MIPI_HSI1_BASE;
+ icu_data[6].domain = irq_domain_add_legacy(NULL, icu_data[6].nr_irqs,
+ icu_data[6].virq_base, 0,
+ &irq_domain_simple_ops,
+ &icu_data[6]);
+ icu_data[7].reg_status = mmp_icu_base + 0x188;
+ icu_data[7].reg_mask = mmp_icu_base + 0x184;
+ icu_data[7].nr_irqs = 2;
+ icu_data[7].cascade_irq = 55;
+ icu_data[7].virq_base = IRQ_MMP2_MIPI_HSI0_BASE;
+ icu_data[7].domain = irq_domain_add_legacy(NULL, icu_data[7].nr_irqs,
+ icu_data[7].virq_base, 0,
+ &irq_domain_simple_ops,
+ &icu_data[7]);
+ for (irq = 0; irq < IRQ_MMP2_MUX_END; irq++) {
+ icu_mask_irq(irq_get_irq_data(irq));
+ switch (irq) {
+ case IRQ_MMP2_PMIC_MUX:
+ case IRQ_MMP2_RTC_MUX:
+ case IRQ_MMP2_KEYPAD_MUX:
+ case IRQ_MMP2_TWSI_MUX:
+ case IRQ_MMP2_MISC_MUX:
+ case IRQ_MMP2_MIPI_HSI1_MUX:
+ case IRQ_MMP2_MIPI_HSI0_MUX:
+ irq_set_chip(irq, &icu_irq_chip);
+ irq_set_chained_handler(irq, icu_mux_irq_demux);
+ break;
+ default:
+ irq_set_chip_and_handler(irq, &icu_irq_chip,
+ handle_level_irq);
+ break;
+ }
+ set_irq_flags(irq, IRQF_VALID);
+ }
+ irq_set_default_host(icu_data[0].domain);
+#ifdef CONFIG_CPU_MMP2
+ icu_irq_chip.irq_set_wake = mmp2_set_wake;
+#endif
+}
+
+#ifdef CONFIG_OF
+static const struct of_device_id intc_ids[] __initconst = {
+ { .compatible = "mrvl,mmp-intc", .data = &mmp_conf },
+ { .compatible = "mrvl,mmp2-intc", .data = &mmp2_conf },
+ {}
+};
+
+static const struct of_device_id mmp_mux_irq_match[] __initconst = {
+ { .compatible = "mrvl,mmp2-mux-intc" },
+ {}
+};
+
+int __init mmp2_mux_init(struct device_node *parent)
+{
+ struct device_node *node;
+ const struct of_device_id *of_id;
+ struct resource res;
+ int i, irq_base, ret, irq;
+ u32 nr_irqs, mfp_irq;
+
+ node = parent;
+ max_icu_nr = 1;
+ for (i = 1; i < MAX_ICU_NR; i++) {
+ node = of_find_matching_node(node, mmp_mux_irq_match);
+ if (!node)
+ break;
+ of_id = of_match_node(&mmp_mux_irq_match[0], node);
+ ret = of_property_read_u32(node, "mrvl,intc-nr-irqs",
+ &nr_irqs);
+ if (ret) {
+ pr_err("Not found mrvl,intc-nr-irqs property\n");
+ ret = -EINVAL;
+ goto err;
+ }
+ ret = of_address_to_resource(node, 0, &res);
+ if (ret < 0) {
+ pr_err("Not found reg property\n");
+ ret = -EINVAL;
+ goto err;
+ }
+ icu_data[i].reg_status = mmp_icu_base + res.start;
+ ret = of_address_to_resource(node, 1, &res);
+ if (ret < 0) {
+ pr_err("Not found reg property\n");
+ ret = -EINVAL;
+ goto err;
+ }
+ icu_data[i].reg_mask = mmp_icu_base + res.start;
+ icu_data[i].cascade_irq = irq_of_parse_and_map(node, 0);
+ if (!icu_data[i].cascade_irq) {
+ ret = -EINVAL;
+ goto err;
+ }
+
+ irq_base = irq_alloc_descs(-1, 0, nr_irqs, 0);
+ if (irq_base < 0) {
+ pr_err("Failed to allocate IRQ numbers for mux intc\n");
+ ret = irq_base;
+ goto err;
+ }
+ if (!of_property_read_u32(node, "mrvl,clr-mfp-irq",
+ &mfp_irq)) {
+ icu_data[i].clr_mfp_irq_base = irq_base;
+ icu_data[i].clr_mfp_hwirq = mfp_irq;
+ }
+ irq_set_chained_handler(icu_data[i].cascade_irq,
+ icu_mux_irq_demux);
+ icu_data[i].nr_irqs = nr_irqs;
+ icu_data[i].virq_base = irq_base;
+ icu_data[i].domain = irq_domain_add_legacy(node, nr_irqs,
+ irq_base, 0,
+ &mmp_irq_domain_ops,
+ &icu_data[i]);
+ for (irq = irq_base; irq < irq_base + nr_irqs; irq++)
+ icu_mask_irq(irq_get_irq_data(irq));
+ }
+ max_icu_nr = i;
+ return 0;
+err:
+ of_node_put(node);
+ max_icu_nr = i;
+ return ret;
+}
+
+void __init mmp_dt_irq_init(void)
+{
+ struct device_node *node;
+ const struct of_device_id *of_id;
+ struct mmp_intc_conf *conf;
+ int nr_irqs, irq_base, ret, irq;
+
+ node = of_find_matching_node(NULL, intc_ids);
+ if (!node) {
+ pr_err("Failed to find interrupt controller in arch-mmp\n");
+ return;
+ }
+ of_id = of_match_node(intc_ids, node);
+ conf = of_id->data;
+
+ ret = of_property_read_u32(node, "mrvl,intc-nr-irqs", &nr_irqs);
+ if (ret) {
+ pr_err("Not found mrvl,intc-nr-irqs property\n");
+ return;
+ }
+
+ mmp_icu_base = of_iomap(node, 0);
+ if (!mmp_icu_base) {
+ pr_err("Failed to get interrupt controller register\n");
+ return;
+ }
+
+ irq_base = irq_alloc_descs(-1, 0, nr_irqs - NR_IRQS_LEGACY, 0);
+ if (irq_base < 0) {
+ pr_err("Failed to allocate IRQ numbers\n");
+ goto err;
+ } else if (irq_base != NR_IRQS_LEGACY) {
+ pr_err("ICU's irqbase should be started from 0\n");
+ goto err;
+ }
+ icu_data[0].conf_enable = conf->conf_enable;
+ icu_data[0].conf_disable = conf->conf_disable;
+ icu_data[0].conf_mask = conf->conf_mask;
+ icu_data[0].nr_irqs = nr_irqs;
+ icu_data[0].virq_base = 0;
+ icu_data[0].domain = irq_domain_add_legacy(node, nr_irqs, 0, 0,
+ &mmp_irq_domain_ops,
+ &icu_data[0]);
+ irq_set_default_host(icu_data[0].domain);
+ for (irq = 0; irq < nr_irqs; irq++)
+ icu_mask_irq(irq_get_irq_data(irq));
+ mmp2_mux_init(node);
+ return;
+err:
+ iounmap(mmp_icu_base);
+}
+#endif
projects / cascardo / linux.git / commitdiff