[PATCH V3] QorIQ/TMU: add TMU node to device tree for QorIQ T1040

[Hongtao Jia]

Hi Scott,

Patch updated to V3, please help to review.
Thanks.

---
Best Regards,
Hongtao

> -----Original Message-----
> From: Jia Hongtao [mailto:hongtao.jia at freescale.com]
> Sent: Thursday, June 11, 2015 3:53 PM
> To: Wood Scott-B07421
> Cc: linuxppc-dev at lists.ozlabs.org; devicetree at vger.kernel.org;
> robh+dt at kernel.org; edubezval at gmail.com; Jia Hongtao-B38951
> Subject: [PATCH V3] QorIQ/TMU: add TMU node to device tree for QorIQ
> T1040
> 
> This is Thermal Monitoring Unit for QorIQ platform.
> 
> Signed-off-by: Jia Hongtao <hongtao.jia at freescale.com>
> ---
> Changes of V3:
> * Put TMU node directly into t1040si-post.dtsi file.
> * Add "fsl,tmu-range" property.
> * Change "calibration" property to "fsl,tmu-calibration".
> * Update the calibration data.
> 
> Changes of V2:
> * Provide more details on compatible and calibration properties.
> 
>  .../devicetree/bindings/thermal/qoriq-thermal.txt  | 63
> ++++++++++++++++++++++
>  arch/powerpc/boot/dts/fsl/t1040si-post.dtsi        | 42 +++++++++++++++
>  2 files changed, 105 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/thermal/qoriq-
> thermal.txt
> 
> diff --git a/Documentation/devicetree/bindings/thermal/qoriq-thermal.txt
> b/Documentation/devicetree/bindings/thermal/qoriq-thermal.txt
> new file mode 100644
> index 0000000..2bc9cb3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/thermal/qoriq-thermal.txt
> @@ -0,0 +1,63 @@
> +* 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.
> +- fsl,tmu-range : Temperature range for TMU. Including the starting
> +	temperature and number of calibration points for each range.
> +- fsl,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 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>;
> +	fsl,tmu-range = <0x000a0000 0x00090026 0x0008004a 0x0001006a>;
> +	fsl,tmu-calibration = <0x00000000 0x00000025
> +			       0x00000001 0x00000028
> +			       0x00000002 0x0000002d
> +			       0x00000003 0x00000031
> +			       0x00000004 0x00000036
> +			       0x00000005 0x0000003a
> +			       0x00000006 0x00000040
> +			       0x00000007 0x00000044
> +			       0x00000008 0x0000004a
> +			       0x00000009 0x0000004f
> +			       0x0000000a 0x00000054
> +
> +			       0x00010000 0x0000000d
> +			       0x00010001 0x00000013
> +			       0x00010002 0x00000019
> +			       0x00010003 0x0000001f
> +			       0x00010004 0x00000025
> +			       0x00010005 0x0000002d
> +			       0x00010006 0x00000033
> +			       0x00010007 0x00000043
> +			       0x00010008 0x0000004b
> +			       0x00010009 0x00000053
> +
> +			       0x00020000 0x00000010
> +			       0x00020001 0x00000017
> +			       0x00020002 0x0000001f
> +			       0x00020003 0x00000029
> +			       0x00020004 0x00000031
> +			       0x00020005 0x0000003c
> +			       0x00020006 0x00000042
> +			       0x00020007 0x0000004d
> +			       0x00020008 0x00000056
> +
> +			       0x00030000 0x00000012
> +			       0x00030001 0x0000001d>;
> +};
> diff --git a/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi
> b/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi
> index 5cc01be..6d9ca4d 100644
> --- a/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi
> +++ b/arch/powerpc/boot/dts/fsl/t1040si-post.dtsi
> @@ -407,6 +407,48 @@
>  		reg	   = <0xea000 0x4000>;
>  	};
> 
> +	tmu at f0000 {
> +		compatible = "fsl,qoriq-tmu";
> +		reg = <0xf0000 0x1000>;
> +		interrupts = <18 2 0 0>;
> +		fsl,tmu-range = <0x000a0000 0x00090026 0x0008004a 0x0001006a>;
> +		fsl,tmu-calibration = <0x00000000 0x00000025
> +				       0x00000001 0x00000028
> +				       0x00000002 0x0000002d
> +				       0x00000003 0x00000031
> +				       0x00000004 0x00000036
> +				       0x00000005 0x0000003a
> +				       0x00000006 0x00000040
> +				       0x00000007 0x00000044
> +				       0x00000008 0x0000004a
> +				       0x00000009 0x0000004f
> +				       0x0000000a 0x00000054
> +
> +				       0x00010000 0x0000000d
> +				       0x00010001 0x00000013
> +				       0x00010002 0x00000019
> +				       0x00010003 0x0000001f
> +				       0x00010004 0x00000025
> +				       0x00010005 0x0000002d
> +				       0x00010006 0x00000033
> +				       0x00010007 0x00000043
> +				       0x00010008 0x0000004b
> +				       0x00010009 0x00000053
> +
> +				       0x00020000 0x00000010
> +				       0x00020001 0x00000017
> +				       0x00020002 0x0000001f
> +				       0x00020003 0x00000029
> +				       0x00020004 0x00000031
> +				       0x00020005 0x0000003c
> +				       0x00020006 0x00000042
> +				       0x00020007 0x0000004d
> +				       0x00020008 0x00000056
> +
> +				       0x00030000 0x00000012
> +				       0x00030001 0x0000001d>;
> +	};
> +
>  /include/ "elo3-dma-0.dtsi"
>  /include/ "elo3-dma-1.dtsi"
>  /include/ "qoriq-espi-0.dtsi"
> --
> 2.1.0.27.g96db324