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authorJason Cooper <jason@lakedaemon.net>2014-11-26 10:02:27 +0300
committerJason Cooper <jason@lakedaemon.net>2014-11-26 10:02:27 +0300
commit377df64a1676fe069be9d9555edd862459d6090b (patch)
tree554a27c8576570fc93b03a3d8a581b052ceae864 /drivers/irqchip
parent2f90bce7ff1f760986d55d9cb3a834e8638b1295 (diff)
parent25963dbd076965521a0f79f9cf09707e6d1b51b3 (diff)
downloadlinux-377df64a1676fe069be9d9555edd862459d6090b.tar.xz
Merge branch 'irqchip/atmel' into irqchip/core
Diffstat (limited to 'drivers/irqchip')
-rw-r--r--drivers/irqchip/irq-atmel-aic-common.c26
-rw-r--r--drivers/irqchip/irq-atmel-aic-common.h2
-rw-r--r--drivers/irqchip/irq-atmel-aic.c26
3 files changed, 49 insertions, 5 deletions
diff --git a/drivers/irqchip/irq-atmel-aic-common.c b/drivers/irqchip/irq-atmel-aic-common.c
index 6ae3cdee0681..656cfe336837 100644
--- a/drivers/irqchip/irq-atmel-aic-common.c
+++ b/drivers/irqchip/irq-atmel-aic-common.c
@@ -167,6 +167,32 @@ void __init aic_common_rtc_irq_fixup(struct device_node *root)
iounmap(regs);
}
+#define AT91_RTT_MR 0x00 /* Real-time Mode Register */
+#define AT91_RTT_ALMIEN (1 << 16) /* Alarm Interrupt Enable */
+#define AT91_RTT_RTTINCIEN (1 << 17) /* Real Time Timer Increment Interrupt Enable */
+
+void __init aic_common_rtt_irq_fixup(struct device_node *root)
+{
+ struct device_node *np;
+ void __iomem *regs;
+
+ /*
+ * The at91sam9263 SoC has 2 instances of the RTT block, hence we
+ * iterate over the DT to find each occurrence.
+ */
+ for_each_compatible_node(np, NULL, "atmel,at91sam9260-rtt") {
+ regs = of_iomap(np, 0);
+ if (!regs)
+ continue;
+
+ writel(readl(regs + AT91_RTT_MR) &
+ ~(AT91_RTT_ALMIEN | AT91_RTT_RTTINCIEN),
+ regs + AT91_RTT_MR);
+
+ iounmap(regs);
+ }
+}
+
void __init aic_common_irq_fixup(const struct of_device_id *matches)
{
struct device_node *root = of_find_node_by_path("/");
diff --git a/drivers/irqchip/irq-atmel-aic-common.h b/drivers/irqchip/irq-atmel-aic-common.h
index 90aa00e918d6..603f0a9d5411 100644
--- a/drivers/irqchip/irq-atmel-aic-common.h
+++ b/drivers/irqchip/irq-atmel-aic-common.h
@@ -34,6 +34,8 @@ struct irq_domain *__init aic_common_of_init(struct device_node *node,
void __init aic_common_rtc_irq_fixup(struct device_node *root);
+void __init aic_common_rtt_irq_fixup(struct device_node *root);
+
void __init aic_common_irq_fixup(const struct of_device_id *matches);
#endif /* __IRQ_ATMEL_AIC_COMMON_H */
diff --git a/drivers/irqchip/irq-atmel-aic.c b/drivers/irqchip/irq-atmel-aic.c
index 27fdd8c3e7b4..dae3604b32a9 100644
--- a/drivers/irqchip/irq-atmel-aic.c
+++ b/drivers/irqchip/irq-atmel-aic.c
@@ -209,16 +209,32 @@ static const struct irq_domain_ops aic_irq_ops = {
.xlate = aic_irq_domain_xlate,
};
-static void __init at91sam9_aic_irq_fixup(struct device_node *root)
+static void __init at91rm9200_aic_irq_fixup(struct device_node *root)
{
aic_common_rtc_irq_fixup(root);
}
+static void __init at91sam9260_aic_irq_fixup(struct device_node *root)
+{
+ aic_common_rtt_irq_fixup(root);
+}
+
+static void __init at91sam9g45_aic_irq_fixup(struct device_node *root)
+{
+ aic_common_rtc_irq_fixup(root);
+ aic_common_rtt_irq_fixup(root);
+}
+
static const struct of_device_id __initdata aic_irq_fixups[] = {
- { .compatible = "atmel,at91sam9g45", .data = at91sam9_aic_irq_fixup },
- { .compatible = "atmel,at91sam9n12", .data = at91sam9_aic_irq_fixup },
- { .compatible = "atmel,at91sam9rl", .data = at91sam9_aic_irq_fixup },
- { .compatible = "atmel,at91sam9x5", .data = at91sam9_aic_irq_fixup },
+ { .compatible = "atmel,at91rm9200", .data = at91rm9200_aic_irq_fixup },
+ { .compatible = "atmel,at91sam9g45", .data = at91sam9g45_aic_irq_fixup },
+ { .compatible = "atmel,at91sam9n12", .data = at91rm9200_aic_irq_fixup },
+ { .compatible = "atmel,at91sam9rl", .data = at91sam9g45_aic_irq_fixup },
+ { .compatible = "atmel,at91sam9x5", .data = at91rm9200_aic_irq_fixup },
+ { .compatible = "atmel,at91sam9260", .data = at91sam9260_aic_irq_fixup },
+ { .compatible = "atmel,at91sam9261", .data = at91sam9260_aic_irq_fixup },
+ { .compatible = "atmel,at91sam9263", .data = at91sam9260_aic_irq_fixup },
+ { .compatible = "atmel,at91sam9g20", .data = at91sam9260_aic_irq_fixup },
{ /* sentinel */ },
};