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arm64: hi6220: Document devicetree bindings for Hisilicon hi6220 SoC

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This patch adds documentation for the devicetree bindings used by the
DT files of Hisilicon hi6220 SoC mobile platform.

Signed-off-by: Bintian Wang <bintian.wang@huawei.com>
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Haojian Zhuang <haojian.zhuang@linaro.org>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
This commit is contained in:
Bintian Wang 2015-02-25 15:23:11 +08:00 committed by Wei Xu
parent b787f68c36
commit 3833fe5f90
1 changed files with 87 additions and 0 deletions
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87
Documentation/devicetree/bindings/arm/hisilicon/hisilicon.txt
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@ -1,5 +1,8 @@
Hisilicon Platforms Device Tree Bindings
----------------------------------------------------
Hi6220 SoC
Required root node properties:
- compatible = "hisilicon,hi6220";
Hi4511 Board
Required root node properties:
@ -13,6 +16,9 @@ HiP01 ca9x2 Board
Required root node properties:
- compatible = "hisilicon,hip01-ca9x2";
HiKey Board
Required root node properties:
- compatible = "hisilicon,hi6220-hikey", "hisilicon,hi6220";
Hisilicon system controller
@ -40,6 +46,87 @@ Example:
reboot-offset = <0x4>;
};
-----------------------------------------------------------------------
Hisilicon Hi6220 system controller
Required properties:
- compatible : "hisilicon,hi6220-sysctrl"
- reg : Register address and size
- #clock-cells: should be set to 1, many clock registers are defined
under this controller and this property must be present.
Hisilicon designs this controller as one of the system controllers,
its main functions are the same as Hisilicon system controller, but
the register offset of some core modules are different.
Example:
/*for Hi6220*/
sys_ctrl: sys_ctrl@f7030000 {
compatible = "hisilicon,hi6220-sysctrl", "syscon";
reg = <0x0 0xf7030000 0x0 0x2000>;
#clock-cells = <1>;
};
Hisilicon Hi6220 Power Always ON domain controller
Required properties:
- compatible : "hisilicon,hi6220-aoctrl"
- reg : Register address and size
- #clock-cells: should be set to 1, many clock registers are defined
under this controller and this property must be present.
Hisilicon designs this system controller to control the power always
on domain for mobile platform.
Example:
/*for Hi6220*/
ao_ctrl: ao_ctrl@f7800000 {
compatible = "hisilicon,hi6220-aoctrl", "syscon";
reg = <0x0 0xf7800000 0x0 0x2000>;
#clock-cells = <1>;
};
Hisilicon Hi6220 Media domain controller
Required properties:
- compatible : "hisilicon,hi6220-mediactrl"
- reg : Register address and size
- #clock-cells: should be set to 1, many clock registers are defined
under this controller and this property must be present.
Hisilicon designs this system controller to control the multimedia
domain(e.g. codec, G3D ...) for mobile platform.
Example:
/*for Hi6220*/
media_ctrl: media_ctrl@f4410000 {
compatible = "hisilicon,hi6220-mediactrl", "syscon";
reg = <0x0 0xf4410000 0x0 0x1000>;
#clock-cells = <1>;
};
Hisilicon Hi6220 Power Management domain controller
Required properties:
- compatible : "hisilicon,hi6220-pmctrl"
- reg : Register address and size
- #clock-cells: should be set to 1, some clock registers are define
under this controller and this property must be present.
Hisilicon designs this system controller to control the power management
domain for mobile platform.
Example:
/*for Hi6220*/
pm_ctrl: pm_ctrl@f7032000 {
compatible = "hisilicon,hi6220-pmctrl", "syscon";
reg = <0x0 0xf7032000 0x0 0x1000>;
#clock-cells = <1>;
};
-----------------------------------------------------------------------
Hisilicon HiP01 system controller