diff options
Diffstat (limited to 'arch/arm/mach-omap2')
| -rw-r--r-- | arch/arm/mach-omap2/cpuidle44xx.c | 11 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/hsmmc.c | 33 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap-wakeupgen.c | 128 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap-wakeupgen.h | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap4-common.c | 27 |
5 files changed, 141 insertions, 59 deletions
diff --git a/arch/arm/mach-omap2/cpuidle44xx.c b/arch/arm/mach-omap2/cpuidle44xx.c index 01e398a868bc..4b8e9f4d59ea 100644 --- a/arch/arm/mach-omap2/cpuidle44xx.c +++ b/arch/arm/mach-omap2/cpuidle44xx.c @@ -14,10 +14,9 @@ #include <linux/cpuidle.h> #include <linux/cpu_pm.h> #include <linux/export.h> -#include <linux/clockchips.h> +#include <linux/tick.h> #include <asm/cpuidle.h> -#include <asm/proc-fns.h> #include "common.h" #include "pm.h" @@ -84,7 +83,6 @@ static int omap_enter_idle_coupled(struct cpuidle_device *dev, { struct idle_statedata *cx = state_ptr + index; u32 mpuss_can_lose_context = 0; - int cpu_id = smp_processor_id(); /* * CPU0 has to wait and stay ON until CPU1 is OFF state. @@ -112,7 +110,7 @@ static int omap_enter_idle_coupled(struct cpuidle_device *dev, mpuss_can_lose_context = (cx->mpu_state == PWRDM_POWER_RET) && (cx->mpu_logic_state == PWRDM_POWER_OFF); - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu_id); + tick_broadcast_enter(); /* * Call idle CPU PM enter notifier chain so that @@ -169,7 +167,7 @@ static int omap_enter_idle_coupled(struct cpuidle_device *dev, if (dev->cpu == 0 && mpuss_can_lose_context) cpu_cluster_pm_exit(); - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu_id); + tick_broadcast_exit(); fail: cpuidle_coupled_parallel_barrier(dev, &abort_barrier); @@ -184,8 +182,7 @@ fail: */ static void omap_setup_broadcast_timer(void *arg) { - int cpu = smp_processor_id(); - clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ON, &cpu); + tick_broadcast_enable(); } static struct cpuidle_driver omap4_idle_driver = { diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c index dc6e79c4484a..9a8611ab5dfa 100644 --- a/arch/arm/mach-omap2/hsmmc.c +++ b/arch/arm/mach-omap2/hsmmc.c @@ -150,9 +150,13 @@ static int nop_mmc_set_power(struct device *dev, int power_on, int vdd) static inline void omap_hsmmc_mux(struct omap_hsmmc_platform_data *mmc_controller, int controller_nr) { - if (gpio_is_valid(mmc_controller->switch_pin) && - (mmc_controller->switch_pin < OMAP_MAX_GPIO_LINES)) - omap_mux_init_gpio(mmc_controller->switch_pin, + if (gpio_is_valid(mmc_controller->gpio_cd) && + (mmc_controller->gpio_cd < OMAP_MAX_GPIO_LINES)) + omap_mux_init_gpio(mmc_controller->gpio_cd, + OMAP_PIN_INPUT_PULLUP); + if (gpio_is_valid(mmc_controller->gpio_cod) && + (mmc_controller->gpio_cod < OMAP_MAX_GPIO_LINES)) + omap_mux_init_gpio(mmc_controller->gpio_cod, OMAP_PIN_INPUT_PULLUP); if (gpio_is_valid(mmc_controller->gpio_wp) && (mmc_controller->gpio_wp < OMAP_MAX_GPIO_LINES)) @@ -250,15 +254,20 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c, mmc->internal_clock = !c->ext_clock; mmc->reg_offset = 0; - mmc->switch_pin = c->gpio_cd; + if (c->cover_only) { + /* detect if mobile phone cover removed */ + mmc->gpio_cd = -EINVAL; + mmc->gpio_cod = c->gpio_cd; + } else { + /* card detect pin on the mmc socket itself */ + mmc->gpio_cd = c->gpio_cd; + mmc->gpio_cod = -EINVAL; + } mmc->gpio_wp = c->gpio_wp; mmc->remux = c->remux; mmc->init_card = c->init_card; - if (c->cover_only) - mmc->cover = 1; - if (c->nonremovable) mmc->nonremovable = 1; @@ -358,7 +367,15 @@ void omap_hsmmc_late_init(struct omap2_hsmmc_info *c) if (!mmc_pdata) continue; - mmc_pdata->switch_pin = c->gpio_cd; + if (c->cover_only) { + /* detect if mobile phone cover removed */ + mmc_pdata->gpio_cd = -EINVAL; + mmc_pdata->gpio_cod = c->gpio_cd; + } else { + /* card detect pin on the mmc socket itself */ + mmc_pdata->gpio_cd = c->gpio_cd; + mmc_pdata->gpio_cod = -EINVAL; + } mmc_pdata->gpio_wp = c->gpio_wp; res = omap_device_register(pdev); diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c index f961c46453b9..3b56722dfd8a 100644 --- a/arch/arm/mach-omap2/omap-wakeupgen.c +++ b/arch/arm/mach-omap2/omap-wakeupgen.c @@ -20,11 +20,12 @@ #include <linux/init.h> #include <linux/io.h> #include <linux/irq.h> +#include <linux/irqdomain.h> +#include <linux/of_address.h> #include <linux/platform_device.h> #include <linux/cpu.h> #include <linux/notifier.h> #include <linux/cpu_pm.h> -#include <linux/irqchip/arm-gic.h> #include "omap-wakeupgen.h" #include "omap-secure.h" @@ -78,29 +79,12 @@ static inline void sar_writel(u32 val, u32 offset, u8 idx) static inline int _wakeupgen_get_irq_info(u32 irq, u32 *bit_posn, u8 *reg_index) { - unsigned int spi_irq; - - /* - * PPIs and SGIs are not supported. - */ - if (irq < OMAP44XX_IRQ_GIC_START) - return -EINVAL; - - /* - * Subtract the GIC offset. - */ - spi_irq = irq - OMAP44XX_IRQ_GIC_START; - if (spi_irq > MAX_IRQS) { - pr_err("omap wakeupGen: Invalid IRQ%d\n", irq); - return -EINVAL; - } - /* * Each WakeupGen register controls 32 interrupt. * i.e. 1 bit per SPI IRQ */ - *reg_index = spi_irq >> 5; - *bit_posn = spi_irq %= 32; + *reg_index = irq >> 5; + *bit_posn = irq %= 32; return 0; } @@ -141,6 +125,7 @@ static void wakeupgen_mask(struct irq_data *d) raw_spin_lock_irqsave(&wakeupgen_lock, flags); _wakeupgen_clear(d->hwirq, irq_target_cpu[d->hwirq]); raw_spin_unlock_irqrestore(&wakeupgen_lock, flags); + irq_chip_mask_parent(d); } /* @@ -153,6 +138,7 @@ static void wakeupgen_unmask(struct irq_data *d) raw_spin_lock_irqsave(&wakeupgen_lock, flags); _wakeupgen_set(d->hwirq, irq_target_cpu[d->hwirq]); raw_spin_unlock_irqrestore(&wakeupgen_lock, flags); + irq_chip_unmask_parent(d); } #ifdef CONFIG_HOTPLUG_CPU @@ -400,15 +386,91 @@ int omap_secure_apis_support(void) return omap_secure_apis; } +static struct irq_chip wakeupgen_chip = { + .name = "WUGEN", + .irq_eoi = irq_chip_eoi_parent, + .irq_mask = wakeupgen_mask, + .irq_unmask = wakeupgen_unmask, + .irq_retrigger = irq_chip_retrigger_hierarchy, + .flags = IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND, +#ifdef CONFIG_SMP + .irq_set_affinity = irq_chip_set_affinity_parent, +#endif +}; + +static int wakeupgen_domain_xlate(struct irq_domain *domain, + struct device_node *controller, + const u32 *intspec, + unsigned int intsize, + unsigned long *out_hwirq, + unsigned int *out_type) +{ + if (domain->of_node != controller) + return -EINVAL; /* Shouldn't happen, really... */ + if (intsize != 3) + return -EINVAL; /* Not GIC compliant */ + if (intspec[0] != 0) + return -EINVAL; /* No PPI should point to this domain */ + + *out_hwirq = intspec[1]; + *out_type = intspec[2]; + return 0; +} + +static int wakeupgen_domain_alloc(struct irq_domain *domain, + unsigned int virq, + unsigned int nr_irqs, void *data) +{ + struct of_phandle_args *args = data; + struct of_phandle_args parent_args; + irq_hw_number_t hwirq; + int i; + + if (args->args_count != 3) + return -EINVAL; /* Not GIC compliant */ + if (args->args[0] != 0) + return -EINVAL; /* No PPI should point to this domain */ + + hwirq = args->args[1]; + if (hwirq >= MAX_IRQS) + return -EINVAL; /* Can't deal with this */ + + for (i = 0; i < nr_irqs; i++) + irq_domain_set_hwirq_and_chip(domain, virq + i, hwirq + i, + &wakeupgen_chip, NULL); + + parent_args = *args; + parent_args.np = domain->parent->of_node; + return irq_domain_alloc_irqs_parent(domain, virq, nr_irqs, &parent_args); +} + +static struct irq_domain_ops wakeupgen_domain_ops = { + .xlate = wakeupgen_domain_xlate, + .alloc = wakeupgen_domain_alloc, + .free = irq_domain_free_irqs_common, +}; + /* * Initialise the wakeupgen module. */ -int __init omap_wakeupgen_init(void) +static int __init wakeupgen_init(struct device_node *node, + struct device_node *parent) { + struct irq_domain *parent_domain, *domain; int i; unsigned int boot_cpu = smp_processor_id(); u32 val; + if (!parent) { + pr_err("%s: no parent, giving up\n", node->full_name); + return -ENODEV; + } + + parent_domain = irq_find_host(parent); + if (!parent_domain) { + pr_err("%s: unable to obtain parent domain\n", node->full_name); + return -ENXIO; + } /* Not supported on OMAP4 ES1.0 silicon */ if (omap_rev() == OMAP4430_REV_ES1_0) { WARN(1, "WakeupGen: Not supported on OMAP4430 ES1.0\n"); @@ -416,7 +478,7 @@ int __init omap_wakeupgen_init(void) } /* Static mapping, never released */ - wakeupgen_base = ioremap(OMAP_WKUPGEN_BASE, SZ_4K); + wakeupgen_base = of_iomap(node, 0); if (WARN_ON(!wakeupgen_base)) return -ENOMEM; @@ -429,6 +491,14 @@ int __init omap_wakeupgen_init(void) max_irqs = AM43XX_IRQS; } + domain = irq_domain_add_hierarchy(parent_domain, 0, max_irqs, + node, &wakeupgen_domain_ops, + NULL); + if (!domain) { + iounmap(wakeupgen_base); + return -ENOMEM; + } + /* Clear all IRQ bitmasks at wakeupGen level */ for (i = 0; i < irq_banks; i++) { wakeupgen_writel(0, i, CPU0_ID); @@ -437,14 +507,6 @@ int __init omap_wakeupgen_init(void) } /* - * Override GIC architecture specific functions to add - * OMAP WakeupGen interrupt controller along with GIC - */ - gic_arch_extn.irq_mask = wakeupgen_mask; - gic_arch_extn.irq_unmask = wakeupgen_unmask; - gic_arch_extn.flags = IRQCHIP_MASK_ON_SUSPEND | IRQCHIP_SKIP_SET_WAKE; - - /* * FIXME: Add support to set_smp_affinity() once the core * GIC code has necessary hooks in place. */ @@ -474,3 +536,9 @@ int __init omap_wakeupgen_init(void) return 0; } + +/* + * We cannot use the IRQCHIP_DECLARE macro that lives in + * drivers/irqchip, so we're forced to roll our own. Not very nice. + */ +OF_DECLARE_2(irqchip, ti_wakeupgen, "ti,omap4-wugen-mpu", wakeupgen_init); diff --git a/arch/arm/mach-omap2/omap-wakeupgen.h b/arch/arm/mach-omap2/omap-wakeupgen.h index b3c8eccfae79..a3491ad12368 100644 --- a/arch/arm/mach-omap2/omap-wakeupgen.h +++ b/arch/arm/mach-omap2/omap-wakeupgen.h @@ -33,7 +33,6 @@ #define OMAP_TIMESTAMPCYCLELO 0xc08 #define OMAP_TIMESTAMPCYCLEHI 0xc0c -extern int __init omap_wakeupgen_init(void); extern void __iomem *omap_get_wakeupgen_base(void); extern int omap_secure_apis_support(void); #endif diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c index cee0fe1ee6ff..7bb116a6f86f 100644 --- a/arch/arm/mach-omap2/omap4-common.c +++ b/arch/arm/mach-omap2/omap4-common.c @@ -22,7 +22,6 @@ #include <linux/of_platform.h> #include <linux/export.h> #include <linux/irqchip/arm-gic.h> -#include <linux/irqchip/irq-crossbar.h> #include <linux/of_address.h> #include <linux/reboot.h> #include <linux/genalloc.h> @@ -242,26 +241,26 @@ static int __init omap4_sar_ram_init(void) } omap_early_initcall(omap4_sar_ram_init); -static const struct of_device_id gic_match[] = { - { .compatible = "arm,cortex-a9-gic", }, - { .compatible = "arm,cortex-a15-gic", }, +static const struct of_device_id intc_match[] = { + { .compatible = "ti,omap4-wugen-mpu", }, + { .compatible = "ti,omap5-wugen-mpu", }, { }, }; -static struct device_node *gic_node; +static struct device_node *intc_node; unsigned int omap4_xlate_irq(unsigned int hwirq) { struct of_phandle_args irq_data; unsigned int irq; - if (!gic_node) - gic_node = of_find_matching_node(NULL, gic_match); + if (!intc_node) + intc_node = of_find_matching_node(NULL, intc_match); - if (WARN_ON(!gic_node)) + if (WARN_ON(!intc_node)) return hwirq; - irq_data.np = gic_node; + irq_data.np = intc_node; irq_data.args_count = 3; irq_data.args[0] = 0; irq_data.args[1] = hwirq - OMAP44XX_IRQ_GIC_START; @@ -278,6 +277,12 @@ void __init omap_gic_of_init(void) { struct device_node *np; + intc_node = of_find_matching_node(NULL, intc_match); + if (WARN_ON(!intc_node)) { + pr_err("No WUGEN found in DT, system will misbehave.\n"); + pr_err("UPDATE YOUR DEVICE TREE!\n"); + } + /* Extract GIC distributor and TWD bases for OMAP4460 ROM Errata WA */ if (!cpu_is_omap446x()) goto skip_errata_init; @@ -291,9 +296,5 @@ void __init omap_gic_of_init(void) WARN_ON(!twd_base); skip_errata_init: - omap_wakeupgen_init(); -#ifdef CONFIG_IRQ_CROSSBAR - irqcrossbar_init(); -#endif irqchip_init(); } |