Messages in this thread Patch in this message | | | From | 周琰杰 (Zhou Yanjie) <> | Subject | [PATCH v8 2/6] MIPS: CI20: Modify DTS to support high resolution timer for SMP. | Date | Tue, 19 May 2020 22:35:19 +0800 |
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Modify DTS, change tcu channel from 2 to 3, channel #0 and #1 for per core local timer, #2 for clocksource.
Tested-by: H. Nikolaus Schaller <hns@goldelico.com> Tested-by: Paul Boddie <paul@boddie.org.uk> Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com> ---
Notes: v1->v2: No change. v2->v3: No change. v3->v4: Rebase on top of kernel 5.6-rc1. v4->v5: Move [5/6] in v4 to this patch, to ensure that we can git-bisect without ending up with a broken kernel. v5->v6: No change. v6->v7: Remove unnecessary "ingenic,pwm-channels-mask". v7->v8: No change.
arch/mips/boot/dts/ingenic/ci20.dts | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-)
diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts index db0ca25..06e3186 100644 --- a/arch/mips/boot/dts/ingenic/ci20.dts +++ b/arch/mips/boot/dts/ingenic/ci20.dts @@ -486,7 +486,12 @@ }; &tcu { - /* 3 MHz for the system timer and clocksource */ - assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>; - assigned-clock-rates = <3000000>, <3000000>; + /* + * 750 kHz for the system timers and clocksource, + * use channel #0 and #1 for the per cpu system timers, + * and use channel #2 for the clocksource. + */ + assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>, + <&tcu TCU_CLK_TIMER2>; + assigned-clock-rates = <750000>, <750000>, <750000>; }; -- 2.7.4
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