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Date: Tue, 2 May 2023 15:35:49 +0200
From: Michal Simek <michal.simek@....com>
To: <linux-kernel@...r.kernel.org>, <monstr@...str.eu>,
<michal.simek@...inx.com>, <git@...inx.com>
CC: Amit Kumar Mahapatra <amit.kumar-mahapatra@...inx.com>,
Ashok Reddy Soma <ashok.reddy.soma@...inx.com>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Parth Gajjar <parth.gajjar@....com>,
"Rob Herring" <robh+dt@...nel.org>,
Srinivas Neeli <srinivas.neeli@...inx.com>,
Vishal Sagar <vishal.sagar@....com>,
<devicetree@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH 21/23] arm64: zynqmp: Enable AMS on SOM and other zcu10x boards
AMS is used for monitoring system. Used for measuring voltages and
especially temperatures. Origin interface is IIO but via iio-hwmon it can
be moved to hwmon framework too (done for SOM and zcu100).
Signed-off-by: Michal Simek <michal.simek@....com>
---
.../boot/dts/xilinx/zynqmp-sm-k26-revA.dts | 26 +++++++++++++++++++
.../boot/dts/xilinx/zynqmp-zcu100-revC.dts | 17 ++++++++++++
.../boot/dts/xilinx/zynqmp-zcu102-revA.dts | 12 +++++++++
.../boot/dts/xilinx/zynqmp-zcu104-revA.dts | 12 +++++++++
.../boot/dts/xilinx/zynqmp-zcu104-revC.dts | 12 +++++++++
5 files changed, 79 insertions(+)
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts b/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts
index e284979fd7b1..78ff6a9b3144 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-sm-k26-revA.dts
@@ -76,6 +76,20 @@ ds36-led {
default-state = "on";
};
};
+
+ ams {
+ compatible = "iio-hwmon";
+ io-channels = <&xilinx_ams 0>, <&xilinx_ams 1>, <&xilinx_ams 2>,
+ <&xilinx_ams 3>, <&xilinx_ams 4>, <&xilinx_ams 5>,
+ <&xilinx_ams 6>, <&xilinx_ams 7>, <&xilinx_ams 8>,
+ <&xilinx_ams 9>, <&xilinx_ams 10>, <&xilinx_ams 11>,
+ <&xilinx_ams 12>, <&xilinx_ams 13>, <&xilinx_ams 14>,
+ <&xilinx_ams 15>, <&xilinx_ams 16>, <&xilinx_ams 17>,
+ <&xilinx_ams 18>, <&xilinx_ams 19>, <&xilinx_ams 20>,
+ <&xilinx_ams 21>, <&xilinx_ams 22>, <&xilinx_ams 23>,
+ <&xilinx_ams 24>, <&xilinx_ams 25>, <&xilinx_ams 26>,
+ <&xilinx_ams 27>, <&xilinx_ams 28>, <&xilinx_ams 29>;
+ };
};
&modepin_gpio {
@@ -327,6 +341,18 @@ &gpio {
"", "", "", ""; /* 170 - 173 */
};
+&xilinx_ams {
+ status = "okay";
+};
+
+&ams_ps {
+ status = "okay";
+};
+
+&ams_pl {
+ status = "okay";
+};
+
&zynqmp_dpsub {
status = "okay";
};
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts
index c99abb99efcb..c8be41d77cb9 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu100-revC.dts
@@ -59,6 +59,15 @@ switch-4 {
};
};
+ iio-hwmon {
+ compatible = "iio-hwmon";
+ io-channels = <&xilinx_ams 0>, <&xilinx_ams 1>, <&xilinx_ams 2>,
+ <&xilinx_ams 3>, <&xilinx_ams 4>, <&xilinx_ams 5>,
+ <&xilinx_ams 6>, <&xilinx_ams 7>, <&xilinx_ams 8>,
+ <&xilinx_ams 9>, <&xilinx_ams 10>,
+ <&xilinx_ams 11>, <&xilinx_ams 12>;
+ };
+
leds {
compatible = "gpio-leds";
led-ds2 {
@@ -581,6 +590,14 @@ &watchdog0 {
status = "okay";
};
+&xilinx_ams {
+ status = "okay";
+};
+
+&ams_ps {
+ status = "okay";
+};
+
&zynqmp_dpdma {
status = "okay";
};
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu102-revA.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu102-revA.dts
index 5b6403865541..b2e1f3581f6b 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu102-revA.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu102-revA.dts
@@ -1027,6 +1027,18 @@ &watchdog0 {
status = "okay";
};
+&xilinx_ams {
+ status = "okay";
+};
+
+&ams_ps {
+ status = "okay";
+};
+
+&ams_pl {
+ status = "okay";
+};
+
&zynqmp_dpdma {
status = "okay";
};
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revA.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revA.dts
index a74a2061431a..1f30c37c2e03 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revA.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revA.dts
@@ -511,6 +511,18 @@ &watchdog0 {
status = "okay";
};
+&xilinx_ams {
+ status = "okay";
+};
+
+&ams_ps {
+ status = "okay";
+};
+
+&ams_pl {
+ status = "okay";
+};
+
&zynqmp_dpdma {
status = "okay";
};
diff --git a/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revC.dts b/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revC.dts
index 73972d83ed4d..474744278b97 100644
--- a/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revC.dts
+++ b/arch/arm64/boot/dts/xilinx/zynqmp-zcu104-revC.dts
@@ -523,6 +523,18 @@ &watchdog0 {
status = "okay";
};
+&xilinx_ams {
+ status = "okay";
+};
+
+&ams_ps {
+ status = "okay";
+};
+
+&ams_pl {
+ status = "okay";
+};
+
&zynqmp_dpdma {
status = "okay";
};
--
2.36.1
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