diff options
Diffstat (limited to 'arch/mips/lantiq/irq.c')
| -rw-r--r-- | arch/mips/lantiq/irq.c | 56 |
1 files changed, 31 insertions, 25 deletions
diff --git a/arch/mips/lantiq/irq.c b/arch/mips/lantiq/irq.c index 030568a70ac4..6ab10573490d 100644 --- a/arch/mips/lantiq/irq.c +++ b/arch/mips/lantiq/irq.c @@ -70,6 +70,7 @@ static struct resource ltq_eiu_irq[MAX_EIU]; static void __iomem *ltq_icu_membase[MAX_IM]; static void __iomem *ltq_eiu_membase; static struct irq_domain *ltq_domain; +static int ltq_perfcount_irq; int ltq_eiu_get_irq(int exin) { @@ -378,30 +379,6 @@ int __init icu_of_init(struct device_node *node, struct device_node *parent) panic("Failed to remap icu memory"); } - /* the external interrupts are optional and xway only */ - eiu_node = of_find_compatible_node(NULL, NULL, "lantiq,eiu-xway"); - if (eiu_node && !of_address_to_resource(eiu_node, 0, &res)) { - /* find out how many external irq sources we have */ - exin_avail = of_irq_count(eiu_node); - - if (exin_avail > MAX_EIU) - exin_avail = MAX_EIU; - - ret = of_irq_to_resource_table(eiu_node, - ltq_eiu_irq, exin_avail); - if (ret != exin_avail) - panic("failed to load external irq resources"); - - if (request_mem_region(res.start, resource_size(&res), - res.name) < 0) - pr_err("Failed to request eiu memory"); - - ltq_eiu_membase = ioremap_nocache(res.start, - resource_size(&res)); - if (!ltq_eiu_membase) - panic("Failed to remap eiu memory"); - } - /* turn off all irqs by default */ for (i = 0; i < MAX_IM; i++) { /* make sure all irqs are turned off by default */ @@ -449,7 +426,7 @@ int __init icu_of_init(struct device_node *node, struct device_node *parent) #endif /* tell oprofile which irq to use */ - cp0_perfcount_irq = irq_create_mapping(ltq_domain, LTQ_PERF_IRQ); + ltq_perfcount_irq = irq_create_mapping(ltq_domain, LTQ_PERF_IRQ); /* * if the timer irq is not one of the mips irqs we need to @@ -458,9 +435,38 @@ int __init icu_of_init(struct device_node *node, struct device_node *parent) if (MIPS_CPU_TIMER_IRQ != 7) irq_create_mapping(ltq_domain, MIPS_CPU_TIMER_IRQ); + /* the external interrupts are optional and xway only */ + eiu_node = of_find_compatible_node(NULL, NULL, "lantiq,eiu-xway"); + if (eiu_node && !of_address_to_resource(eiu_node, 0, &res)) { + /* find out how many external irq sources we have */ + exin_avail = of_irq_count(eiu_node); + + if (exin_avail > MAX_EIU) + exin_avail = MAX_EIU; + + ret = of_irq_to_resource_table(eiu_node, + ltq_eiu_irq, exin_avail); + if (ret != exin_avail) + panic("failed to load external irq resources"); + + if (request_mem_region(res.start, resource_size(&res), + res.name) < 0) + pr_err("Failed to request eiu memory"); + + ltq_eiu_membase = ioremap_nocache(res.start, + resource_size(&res)); + if (!ltq_eiu_membase) + panic("Failed to remap eiu memory"); + } + return 0; } +int get_c0_perfcount_int(void) +{ + return ltq_perfcount_irq; +} + unsigned int get_c0_compare_int(void) { return MIPS_CPU_TIMER_IRQ; |