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Subject[PATCH v8 2/6] MIPS: CI20: Modify DTS to support high resolution timer for SMP.
Date
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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