Commit 781aab84 authored by Mark Brown's avatar Mark Brown
Browse files

Merge remote-tracking branch 'regmap/topic/mmio' into regmap-next

parents 0e03ae74 aacaaa4c

Documentation/devicetree/bindings/regmap/regmap.txt

+7 −4
Original line number Original line Diff line number Diff line
@@ -5,15 +5,18 @@ Index Device Endianness properties 
---------------------------------------------------

---------------------------------------------------

1         BE         'big-endian'

1         BE         'big-endian'

2         LE         'little-endian'

2         LE         'little-endian'

3	  Native     'native-endian'





For one device driver, which will run in different scenarios above

For one device driver, which will run in different scenarios above

on different SoCs using the devicetree, we need one way to simplify

on different SoCs using the devicetree, we need one way to simplify

this.

this.





Required properties:

Optional properties:

- {big,little}-endian: these are boolean properties, if absent

- {big,little,native}-endian: these are boolean properties, if absent

  meaning that the CPU and the Device are in the same endianness mode,

  then the implementation will choose a default based on the device

  these properties are for register values and all the buffers only.

  being controlled.  These properties are for register values and all

  the buffers only.  Native endian means that the CPU and device have

  the same endianness.





Examples:

Examples:

Scenario 1 : CPU in LE mode & device in LE mode.

Scenario 1 : CPU in LE mode & device in LE mode.

arch/mips/boot/dts/brcm/bcm6328.dtsi

+1 −1
Original line number Original line Diff line number Diff line
@@ -74,7 +74,7 @@ 
		timer: timer@10000040 {

		timer: timer@10000040 {

			compatible = "syscon";

			compatible = "syscon";

			reg = <0x10000040 0x2c>;

			reg = <0x10000040 0x2c>;

			little-endian;

			native-endian;

		};

		};





		reboot {

		reboot {

arch/mips/boot/dts/brcm/bcm6368.dtsi

+1 −1
Original line number Original line Diff line number Diff line
@@ -54,7 +54,7 @@ 
		periph_cntl: syscon@10000000 {

		periph_cntl: syscon@10000000 {

			compatible = "syscon";

			compatible = "syscon";

			reg = <0x10000000 0x14>;

			reg = <0x10000000 0x14>;

			little-endian;

			native-endian;

		};

		};





		reboot: syscon-reboot@10000008 {

		reboot: syscon-reboot@10000008 {

arch/mips/boot/dts/brcm/bcm7125.dtsi

+1 −1
Original line number Original line Diff line number Diff line
@@ -98,7 +98,7 @@ 
		sun_top_ctrl: syscon@404000 {

		sun_top_ctrl: syscon@404000 {

			compatible = "brcm,bcm7125-sun-top-ctrl", "syscon";

			compatible = "brcm,bcm7125-sun-top-ctrl", "syscon";

			reg = <0x404000 0x60c>;

			reg = <0x404000 0x60c>;

			little-endian;

			native-endian;

		};

		};





		reboot {

		reboot {

arch/mips/boot/dts/brcm/bcm7346.dtsi

+1 −1
Original line number Original line Diff line number Diff line
@@ -118,7 +118,7 @@ 
		sun_top_ctrl: syscon@404000 {

		sun_top_ctrl: syscon@404000 {

			compatible = "brcm,bcm7346-sun-top-ctrl", "syscon";

			compatible = "brcm,bcm7346-sun-top-ctrl", "syscon";

			reg = <0x404000 0x51c>;

			reg = <0x404000 0x51c>;

			little-endian;

			native-endian;

		};

		};





		reboot {

		reboot {