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ARM: dts: Configure system timers for omap2

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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.

Let's also update the dts file to use #include while at it.

Cc: devicetree@vger.kernel.org
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
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>
This commit is contained in:
Tony Lindgren
2020-05-07 09:59:31 -07:00
parent 83bd18b466
commit 64dbc3d55d
9 changed files with 140 additions and 128 deletions
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31
arch/arm/boot/dts/omap2.dtsi
View File

@@ -201,11 +201,32 @@
clock-frequency = <48000000>;
};
timer2: timer@4802a000 {
compatible = "ti,omap2420-timer";
reg = <0x4802a000 0x400>;
interrupts = <38>;
ti,hwmods = "timer2";
timer2_target: target-module@4802a000 {
compatible = "ti,sysc-omap2-timer", "ti,sysc";
reg = <0x4802a000 0x4>,
<0x4802a010 0x4>,
<0x4802a014 0x4>;
reg-names = "rev", "sysc", "syss";
ti,sysc-mask = <(SYSC_OMAP2_CLOCKACTIVITY |
SYSC_OMAP2_EMUFREE |
SYSC_OMAP2_ENAWAKEUP |
SYSC_OMAP2_SOFTRESET |
SYSC_OMAP2_AUTOIDLE)>;
ti,sysc-sidle = <SYSC_IDLE_FORCE>,
<SYSC_IDLE_NO>,
<SYSC_IDLE_SMART>;
ti,syss-mask = <1>;
clocks = <&gpt2_fck>, <&gpt2_ick>;
clock-names = "fck", "ick";
#address-cells = <1>;
#size-cells = <1>;
ranges = <0x0 0x4802a000 0x1000>;
timer2: timer@0 {
compatible = "ti,omap2420-timer";
reg = <0 0x400>;
interrupts = <38>;
};
};
timer3: timer@48078000 {