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| author | Arnd Bergmann <arnd@arndb.de> | 2014-12-30 11:17:07 +0100 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2014-12-30 15:27:20 +0100 |
| commit | 7ebdfaa52d15b947503f76474477f92854796d96 (patch) | |
| tree | 27cd7acfcd264e8d643db86185f9e3a33a5cf367 /drivers/irqchip/irq-atmel-aic-common.c | |
| parent | clocksource: arch_timer: Only use the virtual counter (CNTVCT) on arm64 (diff) | |
| parent | ARM: mvebu: Fix pinctrl configuration for Armada 370 DB (diff) | |
| download | linux-7ebdfaa52d15b947503f76474477f92854796d96.tar.xz linux-7ebdfaa52d15b947503f76474477f92854796d96.zip | |
Merge tag 'mvebu-fixes-3.19' of git://git.infradead.org/linux-mvebu into fixes
Pull "Fixes for 3.19" from Andrew Lunn:
Jason is taking a back seat this cycle and i'm doing all the patch
wrangling for mvebu.
* tag 'mvebu-fixes-3.19' of git://git.infradead.org/linux-mvebu:
ARM: mvebu: Fix pinctrl configuration for Armada 370 DB
Also update to Linux 3.19-rc1, which this was based on.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'drivers/irqchip/irq-atmel-aic-common.c')
| -rw-r--r-- | drivers/irqchip/irq-atmel-aic-common.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/irqchip/irq-atmel-aic-common.c b/drivers/irqchip/irq-atmel-aic-common.c index cc4f9d80122e..d111ac779c40 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("/"); |