> On Jul 18, 2017, at 16:39, Giordon Stark <kra...@gmail.com> wrote:
>
> Hi all,
>
> In the Zynq-7000 series, the default DTS provided here
> (https://github.com/Xilinx/linux-xlnx/blob/1aacedaf5318e8ae39cc02916647495c1c2992ab/arch/arm/boot/dts/zynq-7000.dtsi#L77-L83
>
> <https://github.com/Xilinx/linux-xlnx/blob/1aacedaf5318e8ae39cc02916647495c1c2992ab/arch/arm/boot/dts/zynq-7000.dtsi#L77-L83>)
> comes with XADC baked in by default...
>
> However, in the ZynqMP series, the default DTS provided here
> (https://github.com/Xilinx/linux-xlnx/blob/1aacedaf5318e8ae39cc02916647495c1c2992ab/arch/arm64/boot/dts/xilinx/zynqmp.dtsi
>
> <https://github.com/Xilinx/linux-xlnx/blob/1aacedaf5318e8ae39cc02916647495c1c2992ab/arch/arm64/boot/dts/xilinx/zynqmp.dtsi>)
> does not come with XADC baked in. It's not clear to me how to add this in
> using a "default project" (MPSoC process IPCore with PS-PL clocks disabled)
> and the system.dtb provided by the zcu102-zynqmp machine option in bitbake.
>
> Would I, instead, need to add the XADC IP Core into my project, and then look
> at the physical addresses and figure out how to add it in my DTS? Or is there
> some other way to do it with the default machine, or should I be making my
> own machine+dts files?
I think the equivalent is the "sysmon" or "AMS" in zynqmp...
If it helps, this is what I have in "my-machine.dts" (fake name) :
#include "zynqmp.dtsi"
[...]
&xilinx_ams {
status = "okay";
#io-channel-cells = <1>;
};
&ams_ps {
status = "okay";
};
&ams_pl {
status = "okay";
reg = <0x0 0x81080400 0x0 0x400>;
xlnx,ext-channels {
#address-cells = <1>;
#size-cells = <0>;
channel@AMS_PL_OPT_VCCVPVN {
reg = <AMS_PL_OPT_VCCVPVN>;
#define MY_MACHINE_VCC3V3 23
};
channel@AMS_PL_OPT_VCCAUX3 {
reg = <AMS_PL_OPT_VCCAUX3>;
#define MY_MACHINE_VCC1V2 24
};
channel@AMS_PL_OPT_VCCAUX11 {
reg = <AMS_PL_OPT_VCCAUX11>;
#define MY_MACHINE_VCC5V 25
};
channel@AMS_PL_OPT_VCCAUX6 {
reg = <AMS_PL_OPT_VCCAUX6>;
#define MY_MACHINE_HV_VC 26
};
};
};
The channel configs in PL are specific to our design. And we export those
through iio-hwmon to get them with "lmsensors":
/ {
iio-hwmon@0 {
compatible = "iio-hwmon";
io-channels = <&xilinx_ams AMS_REMOTE_TEMP>,
<&xilinx_ams AMS_PL_TEMP>,
<&xilinx_ams AMS_VCCPSINTFP>,
<&xilinx_ams AMS_VCCPSDDR>,
<&xilinx_ams MY_MACHINE_VCC1V2>,
<&xilinx_ams AMS_VCCPSAUX>,
<&xilinx_ams AMS_VCCPSIO0>,
<&xilinx_ams MY_MACHINE_VCC3V3>,
<&xilinx_ams AMS_VCCPSIO2>,
<&xilinx_ams MY_MACHINE_VCC5V>,
<&xilinx_ams MY_MACHINE_HV_VC>;
io-channel-names = "CPU",
"FPGA",
"VCC0V85",
"VCC1V1",
"VCC1V2",
"VCC1V8",
"VCC1V8IO",
"VCC3V3",
"VCC3V3IO",
"VCC5V",
"HV_VC";
};
};
Cheers!--
_______________________________________________
meta-xilinx mailing list
meta-xilinx@yoctoproject.org
https://lists.yoctoproject.org/listinfo/meta-xilinx
