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ARM: dts: meson8: add the ARM TWD timer 

The Meson8 and Meson8m2 SoC are using four ARM Cortex-A9 cores which
come with a "TWD" (Timer-Watchdog) based timer. This adds support for
the ARM TWD Timer on these two SoCs.

Suggested-by: Carlo Caione <carlo@endlessm.com>
[ rebased patch from Carlo, use IRQ_TYPE_EDGE_RISING instead of
  IRQ_TYPE_LEVEL_LOW to prevent "GIC: PPI13 is secure or misconfigured"
  message during boot, use pre-processor macros to specify the IRQ,
  added the correct clock, dropped TWD watchdog node since there's no
  driver for it anymore ]
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
This commit is contained in:
Martin Blumenstingl 2018-11-23 20:53:08 +01:00 committed by Kevin Hilman
parent e8c276d953
commit 1124d790b4
1 changed files with 7 additions and 0 deletions
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7
arch/arm/boot/dts/meson8.dtsi
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@ -362,6 +362,13 @@
compatible = "arm,cortex-a9-scu";
reg = <0x0 0x100>;
};
timer@600 {
compatible = "arm,cortex-a9-twd-timer";
reg = <0x600 0x20>;
interrupts = <GIC_PPI 13 (GIC_CPU_MASK_SIMPLE(4) | IRQ_TYPE_EDGE_RISING)>;
clocks = <&clkc CLKID_PERIPH>;
};
};
&pwm_ab {