[PATCH V2] QorIQ/TMU: add TMU node to device tree for QorIQ T104x
Jia Hongtao
hongtao.jia at freescale.com
Wed Apr 15 18:17:48 AEST 2015
This is Thermal Monitoring Unit for QorIQ platform.
Signed-off-by: Jia Hongtao <hongtao.jia at freescale.com>
---
Changes from V1:
* Provide more details on compatible and calibration properties.
.../devicetree/bindings/thermal/qoriq-thermal.txt | 68 ++++++++++++++++++
arch/powerpc/boot/dts/fsl/qoriq-tmu-t104xsi.dtsi | 82 ++++++++++++++++++++++
arch/powerpc/boot/dts/fsl/t1040si-post.dtsi | 1 +
3 files changed, 151 insertions(+)
create mode 100644 Documentation/devicetree/bindings/thermal/qoriq-thermal.txt
create mode 100644 arch/powerpc/boot/dts/fsl/qoriq-tmu-t104xsi.dtsi
diff --git a/Documentation/devicetree/bindings/thermal/qoriq-thermal.txt b/Documentation/devicetree/bindings/thermal/qoriq-thermal.txt
new file mode 100644
index 0000000..48e7fff
--- /dev/null
+++ b/Documentation/devicetree/bindings/thermal/qoriq-thermal.txt
@@ -0,0 +1,68 @@
+* Thermal Monitoring Unit (TMU) on Freescale QorIQ SoCs
+
+Required properties:
+- compatible : Must include "fsl,qoriq-tmu". The version of the device is
+ determined by the TMU IP Block Revision Register (IPBRR0) at
+ offset 0x0BF8.
+ Table of correspondences between IPBRR0 values and example chips:
+ Value Device
+ ---------- -----
+ 0x01900102 T1040
+- reg : Address range of TMU registers.
+- interrupts : Contains the interrupt for TMU.
+- calibration : Calibration table for TMU. This is required to determine
+ what a specific sensor reading translates to in degrees Celsius.
+ There are four calibration config ranges, for each range we need
+ a couple of calibration data formatted like <TTCFGR, TSCFGR>.
+ Freescale provides the data required.
+
+Example:
+
+tmu at f0000 {
+ compatible = "fsl,qoriq-tmu";
+ reg = <0xf0000 0x1000>;
+ interrupts = <18 2 0 0>;
+ calibration = <0x00000000 0x0000000f
+ 0x00000001 0x00000017
+ 0x00000002 0x0000001e
+ 0x00000003 0x00000026
+ 0x00000004 0x0000002e
+ 0x00000005 0x00000035
+ 0x00000006 0x0000003d
+ 0x00000007 0x00000044
+ 0x00000008 0x0000004c
+ 0x00000009 0x00000053
+ 0x0000000a 0x0000005b
+ 0x0000000b 0x00000062
+
+ 0x00010000 0x00000011
+ 0x00010001 0x00000019
+ 0x00010002 0x00000021
+ 0x00010003 0x0000002a
+ 0x00010004 0x00000032
+ 0x00010005 0x0000003a
+ 0x00010006 0x00000042
+ 0x00010007 0x0000004b
+ 0x00010008 0x00000053
+ 0x00010009 0x0000005b
+ 0x0001000a 0x00000063
+
+ 0x00020000 0x00000012
+ 0x00020001 0x0000001b
+ 0x00020002 0x00000024
+ 0x00020003 0x0000002c
+ 0x00020004 0x00000035
+ 0x00020005 0x0000003d
+ 0x00020006 0x00000046
+ 0x00020007 0x0000004e
+ 0x00020008 0x00000057
+
+ 0x00030000 0x00000009
+ 0x00030001 0x00000011
+ 0x00030002 0x00000019
+ 0x00030003 0x00000021
+ 0x00030004 0x00000029
+ 0x00030005 0x00000031
+ 0x00030006 0x00000039
+ 0x00030007 0x00000041>;
+};
diff --git a/arch/powerpc/boot/dts/fsl/qoriq-tmu-t104xsi.dtsi b/arch/powerpc/boot/dts/fsl/qoriq-tmu-t104xsi.dtsi
new file mode 100644
index 0000000..d85c77d
--- /dev/null
+++ b/arch/powerpc/boot/dts/fsl/qoriq-tmu-t104xsi.dtsi
@@ -0,0 +1,82 @@
+/*
+ * QorIQ TMU device tree stub [ controller @ offset 0xf0000 ]
+ *
+ * Copyright 2015 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+tmu at f0000 {
+ compatible = "fsl,qoriq-tmu";
+ reg = <0xf0000 0x1000>;
+ interrupts = <18 2 0 0>;
+ calibration = <0x00000000 0x0000000f
+ 0x00000001 0x00000017
+ 0x00000002 0x0000001e
+ 0x00000003 0x00000026
+ 0x00000004 0x0000002e
+ 0x00000005 0x00000035
+ 0x00000006 0x0000003d
+ 0x00000007 0x00000044
+ 0x00000008 0x0000004c
+ 0x00000009 0x00000053
+ 0x0000000a 0x0000005b
+ 0x0000000b 0x00000062
+
+ 0x00010000 0x00000011
+ 0x00010001 0x00000019
+ 0x00010002 0x00000021
+ 0x00010003 0x0000002a
+ 0x00010004 0x00000032
+ 0x00010005 0x0000003a
+ 0x00010006 0x00000042
+ 0x00010007 0x0000004b
+ 0x00010008 0x00000053
+ 0x00010009 0x0000005b
+ 0x0001000a 0x00000063
+
+ 0x00020000 0x00000012
+ 0x00020001 0x0000001b
+ 0x00020002 0x00000024
+ 0x00020003 0x0000002c
+ 0x00020004 0x00000035
+ 0x00020005 0x0000003d
+ 0x00020006 0x00000046
+ 0x00020007 0x0000004e
+ 0x00020008 0x00000057
+
+ 0x00030000 0x00000009
+ 0x00030001 0x00000011
+ 0x00030002 0x00000019
+ 0x00030003 0x00000021
+ 0x00030004 0x00000029
+ 0x00030005 0x00000031
+ 0x00030006 0x00000039
+ 0x00030007 0x00000041>;
+};
diff --git a/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi b/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi
index 15ae462..bb9f792 100644
--- a/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi
+++ b/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi
@@ -345,6 +345,7 @@
reg = <0xea000 0x4000>;
};
+/include/ "qoriq-tmu-t104xsi.dtsi"
/include/ "elo3-dma-0.dtsi"
/include/ "elo3-dma-1.dtsi"
/include/ "qoriq-espi-0.dtsi"
--
2.1.0.27.g96db324
More information about the Linuxppc-dev
mailing list