openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

ARM: imx: mask gpc interrupts initially 

Mask gpc interrupts initially to avoid suspicious interrupts.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
This commit is contained in:
Shawn Guo 2012-12-04 22:55:13 +08:00
parent eea8e326ff
commit 485863b8fa
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
arch/arm/mach-imx/gpc.c
View File

@ -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;