| Message ID | 20260510-sunxi-a523-gpadc-v1-3-4f6b0f4000fb@mmpsystems.pl (mailing list archive) |
|---|---|
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| Series |
Add GPADC support for A523
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Commit Message
Michal Piekos
May 10, 2026, 12:57 p.m. UTC
Describe high speed timer block on Allwinner D1S-T113.
Tested on Radxa Cubie A5E:
- 2 connected channels are showing voltages in agreement with
schematics.
BOOT-SEL-ADC ~500mV
BOM-ADC ~1800mV
- 3rd channel exposed on 40pin header is showing correct voltages when
connected to known voltage source.
Signed-off-by: Michal Piekos <michal.piekos@mmpsystems.pl>
---
arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi | 12 ++++++++++++
1 file changed, 12 insertions(+)
Comments
Dne nedelja, 10. maj 2026 ob 14:57:24 Srednjeevropski poletni čas je Michal Piekos napisal(a): > Describe high speed timer block on Allwinner D1S-T113. Above line doesn't make much sense. Best regards, Jernej > > Tested on Radxa Cubie A5E: > - 2 connected channels are showing voltages in agreement with > schematics. > BOOT-SEL-ADC ~500mV > BOM-ADC ~1800mV > - 3rd channel exposed on 40pin header is showing correct voltages when > connected to known voltage source. > > Signed-off-by: Michal Piekos <michal.piekos@mmpsystems.pl> > --- > arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi > index 5afa8d92acbf..f6c5cae5b23a 100644 > --- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi > +++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi > @@ -340,6 +340,18 @@ ledc: led-controller@2008000 { > status = "disabled"; > }; > > + gpadc: adc@2009000 { > + compatible = "allwinner,sun55i-a523-gpadc", > + "allwinner,sun20i-d1-gpadc"; > + reg = <0x2009000 0x400>; > + clocks = <&ccu CLK_BUS_GPADC0>, <&ccu CLK_GPADC0>; > + clock-names = "bus", "mod"; > + resets = <&ccu RST_BUS_GPADC0>; > + interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>; > + status = "disabled"; > + #io-channel-cells = <1>; > + }; > + > wdt: watchdog@2050000 { > compatible = "allwinner,sun55i-a523-wdt"; > reg = <0x2050000 0x20>; > >
On Sun, May 10, 2026 at 9:02 PM Michal Piekos <michal.piekos@mmpsystems.pl> wrote: > > Describe high speed timer block on Allwinner D1S-T113. > > Tested on Radxa Cubie A5E: > - 2 connected channels are showing voltages in agreement with > schematics. > BOOT-SEL-ADC ~500mV > BOM-ADC ~1800mV > - 3rd channel exposed on 40pin header is showing correct voltages when > connected to known voltage source. > > Signed-off-by: Michal Piekos <michal.piekos@mmpsystems.pl> > --- > arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi > index 5afa8d92acbf..f6c5cae5b23a 100644 > --- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi > +++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi > @@ -340,6 +340,18 @@ ledc: led-controller@2008000 { > status = "disabled"; > }; > > + gpadc: adc@2009000 { > + compatible = "allwinner,sun55i-a523-gpadc", > + "allwinner,sun20i-d1-gpadc"; > + reg = <0x2009000 0x400>; > + clocks = <&ccu CLK_BUS_GPADC0>, <&ccu CLK_GPADC0>; > + clock-names = "bus", "mod"; > + resets = <&ccu RST_BUS_GPADC0>; > + interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>; > + status = "disabled"; > + #io-channel-cells = <1>; status should always be the last property. > + }; > + > wdt: watchdog@2050000 { > compatible = "allwinner,sun55i-a523-wdt"; > reg = <0x2050000 0x20>; > > -- > 2.43.0 > >
diff --git a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi index 5afa8d92acbf..f6c5cae5b23a 100644 --- a/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi +++ b/arch/arm64/boot/dts/allwinner/sun55i-a523.dtsi @@ -340,6 +340,18 @@ ledc: led-controller@2008000 { status = "disabled"; }; + gpadc: adc@2009000 { + compatible = "allwinner,sun55i-a523-gpadc", + "allwinner,sun20i-d1-gpadc"; + reg = <0x2009000 0x400>; + clocks = <&ccu CLK_BUS_GPADC0>, <&ccu CLK_GPADC0>; + clock-names = "bus", "mod"; + resets = <&ccu RST_BUS_GPADC0>; + interrupts = <GIC_SPI 61 IRQ_TYPE_LEVEL_HIGH>; + status = "disabled"; + #io-channel-cells = <1>; + }; + wdt: watchdog@2050000 { compatible = "allwinner,sun55i-a523-wdt"; reg = <0x2050000 0x20>;