From ed5a4c6248a9e842d691dd3660b9f79be846693f Mon Sep 17 00:00:00 2001 From: Suman Anna Date: Mon, 5 Oct 2015 18:28:22 -0500 Subject: ARM: OMAP2+: timer: Remove secure timer for DRA7xx HS devices Timer 12 on DRA7 SoCs is reserved for secure usage on high-secure (HS) devices. The timer cannot be used by the kernel on HS devices, but is available on regular general purpose (GP) devices. This is similar to the behavior on OMAP3 devices, so extend the logic used in commit ad24bde8f102 ("ARM: OMAP3: Dynamically disable secure timer nodes for secure devices") to remove the secure timer on DRA7xx SoCs at run-time based on the SoC device type. Signed-off-by: Suman Anna Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/timer.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'arch/arm/mach-omap2/timer.c') diff --git a/arch/arm/mach-omap2/timer.c b/arch/arm/mach-omap2/timer.c index b18ebbefae09..6c19d1e2029f 100644 --- a/arch/arm/mach-omap2/timer.c +++ b/arch/arm/mach-omap2/timer.c @@ -194,8 +194,8 @@ static struct device_node * __init omap_get_timer_dt(const struct of_device_id * /** * omap_dmtimer_init - initialisation function when device tree is used * - * For secure OMAP3 devices, timers with device type "timer-secure" cannot - * be used by the kernel as they are reserved. Therefore, to prevent the + * For secure OMAP3/DRA7xx devices, timers with device type "timer-secure" + * cannot be used by the kernel as they are reserved. Therefore, to prevent the * kernel registering these devices remove them dynamically from the device * tree on boot. */ @@ -203,7 +203,7 @@ static void __init omap_dmtimer_init(void) { struct device_node *np; - if (!cpu_is_omap34xx()) + if (!cpu_is_omap34xx() && !soc_is_dra7xx()) return; /* If we are a secure device, remove any secure timer nodes */ -- cgit v1.2.3