Subject: [PATCH v5 3/3] ARM: dts: mvebu: Introduce a new compatible string for mv64xxx-i2c

From: [email-masked] (Gregory CLEMENT)
Date: Fri, 09 Aug 2013 11:18:27 +0200

On 09/08/2013 11:13, Ezequiel Garcia wrote:
> (Sending to devicetree)

As written in the cover letter this patch was already taken,
so I am not sure you have to send it again on the devicetree
mailing list, they have enough traffic I think.

> 
> On Fri, Aug 09, 2013 at 11:05:58AM +0200, Gregory CLEMENT wrote:
>> The mv64xxx-i2c embedded in the Armada XP have a new feature to
>> offload i2c transaction. This new version of the IP come also with
>> some errata. This lead to the introduction to a another compatible
>> string.
>>
>> This commit split the i2c information into armada-370.dtsi and
>> armada-xp.dtsi. Most of the data remains the same and stay in the
>> common file Armada-370-xp.dtsi. With this new feature the size of the
>> registers are bigger for Armada XP and the new compatible string is
>> used.
>>
>> The Device Tree binding documentation is updated accordingly.
>>
>> Signed-off-by: Gregory CLEMENT <[email-masked]>
>> ---
>>  Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt | 13 ++++++++++++-
>>  arch/arm/boot/dts/armada-370-xp.dtsi                  |  2 --
>>  arch/arm/boot/dts/armada-370.dtsi                     |  8 ++++++++
>>  arch/arm/boot/dts/armada-xp.dtsi                      | 10 ++++++++++
>>  4 files changed, 30 insertions(+), 3 deletions(-)
>>
>> diff --git a/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt b/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
>> index a1ee681..c5dd952 100644
>> --- a/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
>> +++ b/Documentation/devicetree/bindings/i2c/i2c-mv64xxx.txt
>> @@ -4,7 +4,8 @@
>>  Required properties :
>>  
>>   - reg             : Offset and length of the register set for the device
>> - - compatible      : Should be "marvell,mv64xxx-i2c"
>> + - compatible      : Should be "marvell,mv64xxx-i2c" and "marvell,mv7230-i2c"
>> +for controller which support the I2C Transaction Generator
>>   - interrupts      : The interrupt number
>>  
>>  Optional properties :
>> @@ -20,3 +21,13 @@ Examples:
>>  		interrupts = <29>;
>>  		clock-frequency = <100000>;
>>  	};
>> +
>> +For a controller which support the I2C Transaction Generator:
>> +
>> +	i2c at 11000 {
>> +		compatible = "marvell,mv78230-i2c", "marvell,mv64xxx-i2c";
>> +		reg = <0x11000 0x100>;
>> +		compatible = "marvell,mv64xxx-i2c";
>> +		interrupts = <29>;
>> +		clock-frequency = <100000>;
>> +	};
>> diff --git a/arch/arm/boot/dts/armada-370-xp.dtsi b/arch/arm/boot/dts/armada-370-xp.dtsi
>> index 90b1176..d8b24c9 100644
>> --- a/arch/arm/boot/dts/armada-370-xp.dtsi
>> +++ b/arch/arm/boot/dts/armada-370-xp.dtsi
>> @@ -121,7 +121,6 @@
>>  
>>  			i2c0: i2c at 11000 {
>>  				compatible = "marvell,mv64xxx-i2c";
>> -				reg = <0x11000 0x20>;
>>  				#address-cells = <1>;
>>  				#size-cells = <0>;
>>  				interrupts = <31>;
>> @@ -132,7 +131,6 @@
>>  
>>  			i2c1: i2c at 11100 {
>>  				compatible = "marvell,mv64xxx-i2c";
>> -				reg = <0x11100 0x20>;
>>  				#address-cells = <1>;
>>  				#size-cells = <0>;
>>  				interrupts = <32>;
>> diff --git a/arch/arm/boot/dts/armada-370.dtsi b/arch/arm/boot/dts/armada-370.dtsi
>> index fa3dfc6..0e2eefa 100644
>> --- a/arch/arm/boot/dts/armada-370.dtsi
>> +++ b/arch/arm/boot/dts/armada-370.dtsi
>> @@ -155,6 +155,14 @@
>>  				};
>>  			};
>>  
>> +			i2c0: i2c at 11000 {
>> +				reg = <0x11000 0x20>;
>> +			};
>> +
>> +			i2c1: i2c at 11100 {
>> +				reg = <0x11100 0x20>;
>> +			};
>> +
>>  			usb at 50000 {
>>  				clocks = <&coreclk 0>;
>>  			};
>> diff --git a/arch/arm/boot/dts/armada-xp.dtsi b/arch/arm/boot/dts/armada-xp.dtsi
>> index 416eb94..e1f2547 100644
>> --- a/arch/arm/boot/dts/armada-xp.dtsi
>> +++ b/arch/arm/boot/dts/armada-xp.dtsi
>> @@ -138,6 +138,16 @@
>>  				};
>>  			};
>>  
>> +			i2c0: i2c at 11000 {
>> +				compatible = "marvell,mv78230-i2c", "marvell,mv64xxx-i2c";
>> +				reg = <0x11000 0x100>;
>> +			};
>> +
>> +			i2c1: i2c at 11100 {
>> +				compatible = "marvell,mv78230-i2c", "marvell,mv64xxx-i2c";
>> +				reg = <0x11100 0x100>;
>> +			};
>> +
>>  			usb at 50000 {
>>  				clocks = <&gateclk 18>;
>>  			};
>> -- 
>> 1.8.1.2
>>
> 

-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com