On the BeagleBone Black, enable the dts node for the TSC/ADC. Add a simple configuration that maps all eight channels in order. AIN[0:6] are exposed on connector P9, while AIN7 measures the 3.3V rail divided by 2.
Signed-off-by: Trent Piepho <[email protected]> --- arch/arm/dts/am335x-boneblack.dts | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm/dts/am335x-boneblack.dts b/arch/arm/dts/am335x-boneblack.dts index 80d710b92..c06a532e4 100644 --- a/arch/arm/dts/am335x-boneblack.dts +++ b/arch/arm/dts/am335x-boneblack.dts @@ -85,3 +85,13 @@ status = "okay"; }; }; + +&tscadc { + status = "okay"; + adc { + /* Ch 0-6 are on connector P9. Ch 7 measures the 3.3V rail + * divided by 2 (e.g., it should read 1650). + */ + ti,adc-channels = <0>, <1>, <2>, <3>, <4>, <5>, <6>, <7>; + }; +}; -- 2.25.4 _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
