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authorTony Lindgren <tony@atomide.com>2020-05-07 09:59:31 -0700
committerTony Lindgren <tony@atomide.com>2020-05-19 09:38:04 -0700
commit14b1925a721992d781f5e9d28db26b85174e3927 (patch)
treed55d35d4e01d07169667398af1bb04711bc2a80d /arch/arm/boot/dts/omap4.dtsi
parent545a95582e80a2c66527dbf7f0ae495902fc083a (diff)
ARM: dts: Configure system timers for omap4
We can now init system timers using the dmtimer and 32k counter based on only devicetree data and drivers/clocksource timers. Let's configure the clocksource and clockevent, and drop the old unused platform data. As we're just dropping platform data, and the early platform data init is based on the custom ti,hwmods property, we want to drop both the platform data and ti,hwmods property in a single patch. Since the dmtimer can use both 32k clock and system clock as the source, let's also configure the SoC specific default values. The board specific dts files can reconfigure these with assigned-clocks and assigned-clock-parents as needed. Cc: devicetree@vger.kernel.org Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: Keerthy <j-keerthy@ti.com> Cc: Lokesh Vutla <lokeshvutla@ti.com> Cc: Rob Herring <robh@kernel.org> Cc: Tero Kristo <t-kristo@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/boot/dts/omap4.dtsi')
-rw-r--r--arch/arm/boot/dts/omap4.dtsi10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 763bdea8c829..6c2b07f0704d 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -655,3 +655,13 @@
#reset-cells = <1>;
};
};
+
+/* Preferred always-on timer for clockevent */
+&timer1_target {
+ ti,no-reset-on-init;
+ ti,no-idle;
+ timer@0 {
+ assigned-clocks = <&l4_wkup_clkctrl OMAP4_TIMER1_CLKCTRL 24>;
+ assigned-clock-parents = <&sys_clkin_ck>;
+ };
+};