[PATCH v5 18/21] MIPS: qi_lb60: Use 750 kHz system timer & enable clocksource

Paul Cercueil
2018-07-24T23:21:04Z

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>
---
arch/mips/boot/dts/ingenic/qi_lb60.dts | 9 +++++++++
1 file changed, 9 insertions(+)

v5: New patch

diff --git a/arch/mips/boot/dts/ingenic/qi_lb60.dts b/arch/mips/boot/dts/ingenic/qi_lb60.dts
index 85529a142409..5d2aca867427 100644
--- a/arch/mips/boot/dts/ingenic/qi_lb60.dts
+++ b/arch/mips/boot/dts/ingenic/qi_lb60.dts
@@ -45,3 +45,12 @@
bias-disable;
};
};
+
+&tcu {
+ /* Use TCU1 channel as clocksource */
+ ingenic,clocksource-channel = <1>;
+
+ /* 750 kHz for the system timer and clocksource */
+ assigned-clocks = <&tcu TCU_CLK_TIMER0>, <&tcu TCU_CLK_TIMER1>;
+ assigned-clock-rates = <750000>, <750000>;
+};
--
2.11.0