diff options
Diffstat (limited to 'arch/arm/mach-omap2')
| -rw-r--r-- | arch/arm/mach-omap2/Makefile | 6 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clkt34xx_dpll3m2.c | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/control.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/include/mach/omap4-common.h | 7 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/irq.c | 97 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap-smp.c | 5 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/pm_bus.c | 85 |
7 files changed, 41 insertions, 162 deletions
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 512b1520445..66dfbccacd2 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -59,10 +59,10 @@ endif # Power Management ifeq ($(CONFIG_PM),y) obj-$(CONFIG_ARCH_OMAP2) += pm24xx.o -obj-$(CONFIG_ARCH_OMAP2) += sleep24xx.o pm_bus.o +obj-$(CONFIG_ARCH_OMAP2) += sleep24xx.o obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o \ - cpuidle34xx.o pm_bus.o -obj-$(CONFIG_ARCH_OMAP4) += pm44xx.o pm_bus.o + cpuidle34xx.o +obj-$(CONFIG_ARCH_OMAP4) += pm44xx.o obj-$(CONFIG_PM_DEBUG) += pm-debug.o obj-$(CONFIG_OMAP_SMARTREFLEX) += sr_device.o smartreflex.o obj-$(CONFIG_OMAP_SMARTREFLEX_CLASS3) += smartreflex-class3.o diff --git a/arch/arm/mach-omap2/clkt34xx_dpll3m2.c b/arch/arm/mach-omap2/clkt34xx_dpll3m2.c index b2b1e37bb6b..d6e34dd9e7e 100644 --- a/arch/arm/mach-omap2/clkt34xx_dpll3m2.c +++ b/arch/arm/mach-omap2/clkt34xx_dpll3m2.c @@ -115,6 +115,7 @@ int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate) sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla, sdrc_cs0->actim_ctrlb, sdrc_cs0->mr, 0, 0, 0, 0); + clk->rate = rate; return 0; } diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h index c2804c1c4ef..a016c8b59e0 100644 --- a/arch/arm/mach-omap2/control.h +++ b/arch/arm/mach-omap2/control.h @@ -236,7 +236,7 @@ #define OMAP343X_CONTROL_WKUP_DEBOBS3 (OMAP343X_CONTROL_GENERAL_WKUP + 0x014) #define OMAP343X_CONTROL_WKUP_DEBOBS4 (OMAP343X_CONTROL_GENERAL_WKUP + 0x018) -/* 36xx-only RTA - Retention till Accesss control registers and bits */ +/* 36xx-only RTA - Retention till Access control registers and bits */ #define OMAP36XX_CONTROL_MEM_RTA_CTRL 0x40C #define OMAP36XX_RTA_DISABLE 0x0 diff --git a/arch/arm/mach-omap2/include/mach/omap4-common.h b/arch/arm/mach-omap2/include/mach/omap4-common.h index de441c05a6a..e4bd8761973 100644 --- a/arch/arm/mach-omap2/include/mach/omap4-common.h +++ b/arch/arm/mach-omap2/include/mach/omap4-common.h @@ -33,4 +33,11 @@ extern void __iomem *gic_dist_base_addr; extern void __init gic_init_irq(void); extern void omap_smc1(u32 fn, u32 arg); +#ifdef CONFIG_SMP +/* Needed for secondary core boot */ +extern void omap_secondary_startup(void); +extern u32 omap_modify_auxcoreboot0(u32 set_mask, u32 clear_mask); +extern void omap_auxcoreboot_addr(u32 cpu_addr); +extern u32 omap_read_auxcoreboot0(void); +#endif #endif diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c index 237e4530abf..3af2b7a1045 100644 --- a/arch/arm/mach-omap2/irq.c +++ b/arch/arm/mach-omap2/irq.c @@ -73,83 +73,18 @@ static u32 intc_bank_read_reg(struct omap_irq_bank *bank, u16 reg) return __raw_readl(bank->base_reg + reg); } -static int previous_irq; - -/* - * On 34xx we can get occasional spurious interrupts if the ack from - * an interrupt handler does not get posted before we unmask. Warn about - * the interrupt handlers that need to flush posted writes. - */ -static int omap_check_spurious(unsigned int irq) -{ - u32 sir, spurious; - - sir = intc_bank_read_reg(&irq_banks[0], INTC_SIR); - spurious = sir >> 7; - - if (spurious) { - printk(KERN_WARNING "Spurious irq %i: 0x%08x, please flush " - "posted write for irq %i\n", - irq, sir, previous_irq); - return spurious; - } - - return 0; -} - /* XXX: FIQ and additional INTC support (only MPU at the moment) */ static void omap_ack_irq(struct irq_data *d) { intc_bank_write_reg(0x1, &irq_banks[0], INTC_CONTROL); } -static void omap_mask_irq(struct irq_data *d) -{ - unsigned int irq = d->irq; - int offset = irq & (~(IRQ_BITS_PER_REG - 1)); - - if (cpu_is_omap34xx() && !cpu_is_ti816x()) { - int spurious = 0; - - /* - * INT_34XX_GPT12_IRQ is also the spurious irq. Maybe because - * it is the highest irq number? - */ - if (irq == INT_34XX_GPT12_IRQ) - spurious = omap_check_spurious(irq); - - if (!spurious) - previous_irq = irq; - } - - irq &= (IRQ_BITS_PER_REG - 1); - - intc_bank_write_reg(1 << irq, &irq_banks[0], INTC_MIR_SET0 + offset); -} - -static void omap_unmask_irq(struct irq_data *d) -{ - unsigned int irq = d->irq; - int offset = irq & (~(IRQ_BITS_PER_REG - 1)); - - irq &= (IRQ_BITS_PER_REG - 1); - - intc_bank_write_reg(1 << irq, &irq_banks[0], INTC_MIR_CLEAR0 + offset); -} - static void omap_mask_ack_irq(struct irq_data *d) { - omap_mask_irq(d); + irq_gc_mask_disable_reg(d); omap_ack_irq(d); } -static struct irq_chip omap_irq_chip = { - .name = "INTC", - .irq_ack = omap_mask_ack_irq, - .irq_mask = omap_mask_irq, - .irq_unmask = omap_unmask_irq, -}; - static void __init omap_irq_bank_init_one(struct omap_irq_bank *bank) { unsigned long tmp; @@ -186,11 +121,31 @@ int omap_irq_pending(void) return 0; } +static __init void +omap_alloc_gc(void __iomem *base, unsigned int irq_start, unsigned int num) +{ + struct irq_chip_generic *gc; + struct irq_chip_type *ct; + + gc = irq_alloc_generic_chip("INTC", 1, irq_start, base, + handle_level_irq); + ct = gc->chip_types; + ct->chip.irq_ack = omap_mask_ack_irq; + ct->chip.irq_mask = irq_gc_mask_disable_reg; + ct->chip.irq_unmask = irq_gc_unmask_enable_reg; + + ct->regs.ack = INTC_CONTROL; + ct->regs.enable = INTC_MIR_CLEAR0; + ct->regs.disable = INTC_MIR_SET0; + irq_setup_generic_chip(gc, IRQ_MSK(num), IRQ_GC_INIT_MASK_CACHE, + IRQ_NOREQUEST | IRQ_NOPROBE, 0); +} + void __init omap_init_irq(void) { unsigned long nr_of_irqs = 0; unsigned int nr_banks = 0; - int i; + int i, j; for (i = 0; i < ARRAY_SIZE(irq_banks); i++) { unsigned long base = 0; @@ -215,17 +170,15 @@ void __init omap_init_irq(void) omap_irq_bank_init_one(bank); + for (i = 0, j = 0; i < bank->nr_irqs; i += 32, j += 0x20) + omap_alloc_gc(bank->base_reg + j, i, 32); + nr_of_irqs += bank->nr_irqs; nr_banks++; } printk(KERN_INFO "Total of %ld interrupts on %d active controller%s\n", nr_of_irqs, nr_banks, nr_banks > 1 ? "s" : ""); - - for (i = 0; i < nr_of_irqs; i++) { - irq_set_chip_and_handler(i, &omap_irq_chip, handle_level_irq); - set_irq_flags(i, IRQF_VALID); - } } #ifdef CONFIG_ARCH_OMAP3 diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c index b66cfe8bc46..ecfe93c4b58 100644 --- a/arch/arm/mach-omap2/omap-smp.c +++ b/arch/arm/mach-omap2/omap-smp.c @@ -21,6 +21,7 @@ #include <linux/io.h> #include <asm/cacheflush.h> +#include <asm/hardware/gic.h> #include <asm/smp_scu.h> #include <mach/hardware.h> #include <mach/omap4-common.h> @@ -63,7 +64,7 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle) omap_modify_auxcoreboot0(0x200, 0xfffffdff); flush_cache_all(); smp_wmb(); - smp_cross_call(cpumask_of(cpu), 1); + gic_raise_softirq(cpumask_of(cpu), 1); /* * Now the secondary core is starting up let it run its @@ -118,6 +119,8 @@ void __init smp_init_cpus(void) for (i = 0; i < ncores; i++) set_cpu_possible(i, true); + + set_smp_cross_call(gic_raise_softirq); } void __init platform_smp_prepare_cpus(unsigned int max_cpus) diff --git a/arch/arm/mach-omap2/pm_bus.c b/arch/arm/mach-omap2/pm_bus.c deleted file mode 100644 index 5acd2ab298b..00000000000 --- a/arch/arm/mach-omap2/pm_bus.c +++ /dev/null @@ -1,85 +0,0 @@ -/* - * Runtime PM support code for OMAP - * - * Author: Kevin Hilman, Deep Root Systems, LLC - * - * Copyright (C) 2010 Texas Instruments, Inc. - * - * This file is licensed under the terms of the GNU General Public - * License version 2. This program is licensed "as is" without any - * warranty of any kind, whether express or implied. - */ -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/io.h> -#include <linux/pm_runtime.h> -#include <linux/platform_device.h> -#include <linux/mutex.h> - -#include <plat/omap_device.h> -#include <plat/omap-pm.h> - -#ifdef CONFIG_PM_RUNTIME -static int omap_pm_runtime_suspend(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - int r, ret = 0; - - dev_dbg(dev, "%s\n", __func__); - - ret = pm_generic_runtime_suspend(dev); - - if (!ret && dev->parent == &omap_device_parent) { - r = omap_device_idle(pdev); - WARN_ON(r); - } - - return ret; -}; - -static int omap_pm_runtime_resume(struct device *dev) -{ - struct platform_device *pdev = to_platform_device(dev); - int r; - - dev_dbg(dev, "%s\n", __func__); - - if (dev->parent == &omap_device_parent) { - r = omap_device_enable(pdev); - WARN_ON(r); - } - - return pm_generic_runtime_resume(dev); -}; -#else -#define omap_pm_runtime_suspend NULL -#define omap_pm_runtime_resume NULL -#endif /* CONFIG_PM_RUNTIME */ - -static int __init omap_pm_runtime_init(void) -{ - const struct dev_pm_ops *pm; - struct dev_pm_ops *omap_pm; - - pm = platform_bus_get_pm_ops(); - if (!pm) { - pr_err("%s: unable to get dev_pm_ops from platform_bus\n", - __func__); - return -ENODEV; - } - - omap_pm = kmemdup(pm, sizeof(struct dev_pm_ops), GFP_KERNEL); - if (!omap_pm) { - pr_err("%s: unable to alloc memory for new dev_pm_ops\n", - __func__); - return -ENOMEM; - } - - omap_pm->runtime_suspend = omap_pm_runtime_suspend; - omap_pm->runtime_resume = omap_pm_runtime_resume; - - platform_bus_set_pm_ops(omap_pm); - - return 0; -} -core_initcall(omap_pm_runtime_init); |