From 485863b8fa02d515e48ce6b59f01d62172d2fe0d Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Tue, 4 Dec 2012 22:55:13 +0800 Subject: ARM: imx: mask gpc interrupts initially Mask gpc interrupts initially to avoid suspicious interrupts. Signed-off-by: Shawn Guo --- arch/arm/mach-imx/gpc.c | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/mach-imx/gpc.c b/arch/arm/mach-imx/gpc.c index e1537f9e45b8..722e5df7e44e 100644 --- a/arch/arm/mach-imx/gpc.c +++ b/arch/arm/mach-imx/gpc.c @@ -101,11 +101,16 @@ static void imx_gpc_irq_mask(struct irq_data *d) void __init imx_gpc_init(void) { struct device_node *np; + int i; np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-gpc"); gpc_base = of_iomap(np, 0); WARN_ON(!gpc_base); + /* Initially mask all interrupts */ + for (i = 0; i < IMR_NUM; i++) + writel_relaxed(~0, gpc_base + GPC_IMR1 + i * 4); + /* Register GPC as the secondary interrupt controller behind GIC */ gic_arch_extn.irq_mask = imx_gpc_irq_mask; gic_arch_extn.irq_unmask = imx_gpc_irq_unmask; -- cgit v1.2.3