From: shawn.guo@linaro.org (Shawn Guo)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 2/4] ARM: imx: mask gpc interrupts initially
Date: Tue, 4 Dec 2012 22:55:13 +0800 [thread overview]
Message-ID: <1354632915-27134-3-git-send-email-shawn.guo@linaro.org> (raw)
In-Reply-To: <1354632915-27134-1-git-send-email-shawn.guo@linaro.org>
Mask gpc interrupts initially to avoid suspicious interrupts.
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
---
arch/arm/mach-imx/gpc.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/arm/mach-imx/gpc.c b/arch/arm/mach-imx/gpc.c
index e1537f9..722e5df 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;
--
1.7.9.5
next prev parent reply other threads:[~2012-12-04 14:55 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-04 14:55 [PATCH v2 0/4] Support imx6q WAIT mode Shawn Guo
2012-12-04 14:55 ` [PATCH v2 1/4] ARM: imx: allow timer counter to roll over Shawn Guo
2012-12-04 15:44 ` Russell King - ARM Linux
2012-12-05 12:14 ` Shawn Guo
2012-12-05 12:09 ` Russell King - ARM Linux
2012-12-06 9:34 ` Shawn Guo
2012-12-06 14:54 ` [PATCH v3 1/4] ARM: imx: return zero in case next event gets a large increment Shawn Guo
2012-12-04 14:55 ` Shawn Guo [this message]
2012-12-04 14:55 ` [PATCH v2 3/4] ARM: imx: move imx6q_cpuidle_driver into a separate file Shawn Guo
2012-12-04 14:55 ` [PATCH v2 4/4] ARM: imx6q: support WAIT mode using cpuidle Shawn Guo
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1354632915-27134-3-git-send-email-shawn.guo@linaro.org \
--to=shawn.guo@linaro.org \
--cc=linux-arm-kernel@lists.infradead.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).