diff options
Diffstat (limited to 'arch/arm/mach-prima2/irq.c')
| -rw-r--r-- | arch/arm/mach-prima2/irq.c | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/arch/arm/mach-prima2/irq.c b/arch/arm/mach-prima2/irq.c index c3404cbb6ff..d93ceef4a50 100644 --- a/arch/arm/mach-prima2/irq.c +++ b/arch/arm/mach-prima2/irq.c @@ -13,6 +13,8 @@ #include <asm/mach/irq.h> #include <linux/of.h> #include <linux/of_address.h> +#include <linux/irqdomain.h> +#include <linux/syscore_ops.h> #define SIRFSOC_INT_RISC_MASK0 0x0018 #define SIRFSOC_INT_RISC_MASK1 0x001C @@ -51,6 +53,7 @@ static __init void sirfsoc_irq_init(void) static struct of_device_id intc_ids[] = { { .compatible = "sirf,prima2-intc" }, + {}, }; void __init sirfsoc_of_irq_init(void) @@ -65,7 +68,48 @@ void __init sirfsoc_of_irq_init(void) if (!sirfsoc_intc_base) panic("unable to map intc cpu registers\n"); + irq_domain_add_simple(np, 0); + of_node_put(np); sirfsoc_irq_init(); } + +struct sirfsoc_irq_status { + u32 mask0; + u32 mask1; + u32 level0; + u32 level1; +}; + +static struct sirfsoc_irq_status sirfsoc_irq_st; + +static int sirfsoc_irq_suspend(void) +{ + sirfsoc_irq_st.mask0 = readl_relaxed(sirfsoc_intc_base + SIRFSOC_INT_RISC_MASK0); + sirfsoc_irq_st.mask1 = readl_relaxed(sirfsoc_intc_base + SIRFSOC_INT_RISC_MASK1); + sirfsoc_irq_st.level0 = readl_relaxed(sirfsoc_intc_base + SIRFSOC_INT_RISC_LEVEL0); + sirfsoc_irq_st.level1 = readl_relaxed(sirfsoc_intc_base + SIRFSOC_INT_RISC_LEVEL1); + + return 0; +} + +static void sirfsoc_irq_resume(void) +{ + writel_relaxed(sirfsoc_irq_st.mask0, sirfsoc_intc_base + SIRFSOC_INT_RISC_MASK0); + writel_relaxed(sirfsoc_irq_st.mask1, sirfsoc_intc_base + SIRFSOC_INT_RISC_MASK1); + writel_relaxed(sirfsoc_irq_st.level0, sirfsoc_intc_base + SIRFSOC_INT_RISC_LEVEL0); + writel_relaxed(sirfsoc_irq_st.level1, sirfsoc_intc_base + SIRFSOC_INT_RISC_LEVEL1); +} + +static struct syscore_ops sirfsoc_irq_syscore_ops = { + .suspend = sirfsoc_irq_suspend, + .resume = sirfsoc_irq_resume, +}; + +static int __init sirfsoc_irq_pm_init(void) +{ + register_syscore_ops(&sirfsoc_irq_syscore_ops); + return 0; +} +device_initcall(sirfsoc_irq_pm_init); |