* [RFCv1 0/1] Odroid C2: Enable DVFS for cpu
@ 2019-09-07 16:51 Anand Moon
2019-09-07 16:51 ` [RFCv1 1/1] arm64: dts: meson: odroid-c2: Enable SCPI " Anand Moon
0 siblings, 1 reply; 2+ messages in thread
From: Anand Moon @ 2019-09-07 16:51 UTC (permalink / raw)
To: Rob Herring, Martin Blumenstingl, Jerome Brunet, Neil Armstrong,
Kevin Hilman
Cc: devicetree, linux-arm-kernel, linux-amlogic
This patch enable DVFS on GXBB Odroid C2.
DVFS has been tested by running the arm64 cpuburn
[1] https://github.com/ssvb/cpuburn-arm/blob/master/cpuburn-a53.S
PM-QA testing
[2] https://git.linaro.org/power/pm-qa.git [cpufreq testcase]
Tested on latest U-Boot 2019.07-1 (Aug 01 2019 - 23:58:01 +0000) Arch Linux ARM
Patch based on my linu-next-20190904 on top of my previous patch's.
Best Regards
-Anand
Anand Moon (1):
arm64: dts: meson: odroid-c2: Enable SCPI DVFS for cpu
arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--
2.23.0
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^ permalink raw reply [flat|nested] 2+ messages in thread
* [RFCv1 1/1] arm64: dts: meson: odroid-c2: Enable SCPI DVFS for cpu
2019-09-07 16:51 [RFCv1 0/1] Odroid C2: Enable DVFS for cpu Anand Moon
@ 2019-09-07 16:51 ` Anand Moon
0 siblings, 0 replies; 2+ messages in thread
From: Anand Moon @ 2019-09-07 16:51 UTC (permalink / raw)
To: Rob Herring, Martin Blumenstingl, Jerome Brunet, Neil Armstrong,
Kevin Hilman
Cc: devicetree, linux-arm-kernel, linux-amlogic
Enable System Control and Power Interface, DVFS for cpu
with setting 1.54 GHz as max freq in the initial SCPI tables
loaded by the BL2, i.e. packed with U-Boot.
Fixes: f7bcd4b6f698 (ARM64: dts: meson-gxbb-odroidc2: Disable SCPI DVFS)
Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: Jerome Brunet <jbrunet@baylibre.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Kevin Hilman <khilman@baylibre.com>
Suggested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Anand Moon <linux.amoon@gmail.com>
---
In discuss on other mailing list thread below.
[0] https://lkml.org/lkml/2019/8/30/186
Tested on mainline U-Boot 2019.07-1 (Aug 01 2019 - 23:58:01 +0000) Arch Linux ARM
on archlinux distro.
---
arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
index 6ae9fafe4244..7e822408ba26 100644
--- a/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
+++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-odroidc2.dts
@@ -307,7 +307,7 @@
};
&scpi_clocks {
- status = "disabled";
+ status = "okay";
};
/* SD */
--
2.23.0
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2019-09-07 16:51 [RFCv1 0/1] Odroid C2: Enable DVFS for cpu Anand Moon
2019-09-07 16:51 ` [RFCv1 1/1] arm64: dts: meson: odroid-c2: Enable SCPI " Anand Moon
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