* [PATCH] ARM: dts: imx6dl-sabreauto: update opp table for auto part
@ 2019-04-08 7:44 Anson Huang
2019-04-11 6:59 ` Shawn Guo
0 siblings, 1 reply; 2+ messages in thread
From: Anson Huang @ 2019-04-08 7:44 UTC (permalink / raw)
To: robh+dt, mark.rutland, shawnguo, s.hauer, kernel, festevam,
devicetree, linux-arm-kernel, linux-kernel
Cc: dl-linux-imx
Update i.MX6DL automotive part's opp table according to i.MX6DL
automotive datasheet Rev.9, 11/2018, it adds 996MHz set-point
support as below:
LDO enabled(min value):
996MHz: VDDARM: 1.275V, VDDSOC: 1.175V;
792MHz: VDDARM: 1.150V, VDDSOC: 1.150V;
396MHz: VDDARM: 1.125V, VDDSOC: 1.150V;
Adding 25mV to cover board IR drop, for LDO enabled mode of 996MHz,
as the max value of LDO output can NOT exceed 1.3V, so 25mV is NOT
added for VDDARM.
Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
---
arch/arm/boot/dts/imx6dl-sabreauto.dts | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/arch/arm/boot/dts/imx6dl-sabreauto.dts b/arch/arm/boot/dts/imx6dl-sabreauto.dts
index 660d52a..ff3283c8 100644
--- a/arch/arm/boot/dts/imx6dl-sabreauto.dts
+++ b/arch/arm/boot/dts/imx6dl-sabreauto.dts
@@ -11,3 +11,18 @@
model = "Freescale i.MX6 DualLite/Solo SABRE Automotive Board";
compatible = "fsl,imx6dl-sabreauto", "fsl,imx6dl";
};
+
+&cpu0 {
+ operating-points = <
+ /* kHz uV */
+ 996000 1275000
+ 792000 1175000
+ 396000 1150000
+ >;
+ fsl,soc-operating-points = <
+ /* ARM kHz SOC-PU uV */
+ 996000 1200000
+ 792000 1175000
+ 396000 1175000
+ >;
+};
--
2.7.4
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^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH] ARM: dts: imx6dl-sabreauto: update opp table for auto part
2019-04-08 7:44 [PATCH] ARM: dts: imx6dl-sabreauto: update opp table for auto part Anson Huang
@ 2019-04-11 6:59 ` Shawn Guo
0 siblings, 0 replies; 2+ messages in thread
From: Shawn Guo @ 2019-04-11 6:59 UTC (permalink / raw)
To: Anson Huang
Cc: mark.rutland, devicetree, s.hauer, linux-kernel, robh+dt,
dl-linux-imx, kernel, festevam, linux-arm-kernel
On Mon, Apr 08, 2019 at 07:44:21AM +0000, Anson Huang wrote:
> Update i.MX6DL automotive part's opp table according to i.MX6DL
> automotive datasheet Rev.9, 11/2018, it adds 996MHz set-point
> support as below:
>
> LDO enabled(min value):
> 996MHz: VDDARM: 1.275V, VDDSOC: 1.175V;
> 792MHz: VDDARM: 1.150V, VDDSOC: 1.150V;
> 396MHz: VDDARM: 1.125V, VDDSOC: 1.150V;
>
> Adding 25mV to cover board IR drop, for LDO enabled mode of 996MHz,
> as the max value of LDO output can NOT exceed 1.3V, so 25mV is NOT
> added for VDDARM.
>
> Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Applied, thanks.
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linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
^ permalink raw reply [flat|nested] 2+ messages in thread
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