[PATCH v4 4/5] MIPS: CI20: Reduce clocksource to 750 kHz.

From: 周琰杰 (Zhou Yanjie)
Date: Sat Jun 26 2021 - 02:19:08 EST


The original clock (3 MHz) is too fast for the clocksource,
there will be a chance that the system may get stuck.

Reported-by: Nikolaus Schaller <hns@xxxxxxxxxxxxx>
Tested-by: Nikolaus Schaller <hns@xxxxxxxxxxxxx> # on CI20
Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@xxxxxxxxxxxxxx>
---

Notes:
v4:
New patch.

arch/mips/boot/dts/ingenic/ci20.dts | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts
index 8877c62..3a4eaf1 100644
--- a/arch/mips/boot/dts/ingenic/ci20.dts
+++ b/arch/mips/boot/dts/ingenic/ci20.dts
@@ -525,10 +525,10 @@

&tcu {
/*
- * 750 kHz for the system timer and 3 MHz for the clocksource,
+ * 750 kHz for the system timer and clocksource,
* use channel #0 for the system timer, #1 for the clocksource.
*/
assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>,
<&tcu TCU_CLK_OST>;
- assigned-clock-rates = <750000>, <3000000>, <3000000>;
+ assigned-clock-rates = <750000>, <750000>, <3000000>;
};
--
2.7.4