Messages in this thread Patch in this message | | | From | Paul Cercueil <> | Subject | [PATCH v13 10/13] MIPS: qi_lb60: Reduce system timer and clocksource to 750 kHz | Date | Tue, 25 Jun 2019 00:57:56 +0200 |
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The default clock (12 MHz) is too fast for the system timer, which fails to report time accurately.
Signed-off-by: Paul Cercueil <paul@crapouillou.net> Tested-by: Mathieu Malaterre <malat@debian.org> Tested-by: Artur Rojek <contact@artur-rojek.eu> ---
Notes: v5: New patch v6: Remove ingenic,clocksource-channel property v7-v13: No change
arch/mips/boot/dts/ingenic/qi_lb60.dts | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/arch/mips/boot/dts/ingenic/qi_lb60.dts b/arch/mips/boot/dts/ingenic/qi_lb60.dts index 76aaf8982554..01b8c917cb33 100644 --- a/arch/mips/boot/dts/ingenic/qi_lb60.dts +++ b/arch/mips/boot/dts/ingenic/qi_lb60.dts @@ -2,6 +2,7 @@ /dts-v1/; #include "jz4740.dtsi" +#include <dt-bindings/clock/ingenic,tcu.h> / { compatible = "qi,lb60", "ingenic,jz4740"; @@ -31,3 +32,9 @@ bias-disable; }; }; + +&tcu { + /* 750 kHz for the system timer and clocksource */ + assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>; + assigned-clock-rates = <750000>, <750000>; +}; -- 2.21.0.593.g511ec345e18
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