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dt-bindings: add DT bindings for usb2-phy grf 

Adds the device tree bindings description for usb2-phy grf
of RK3328 platform.

Signed-off-by: Meng Dongyang <daniel.meng@rock-chips.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
This commit is contained in:
Meng Dongyang 2017-03-06 09:29:37 +08:00 committed by Kishon Vijay Abraham I
parent e3462f9e07
commit 40544ba591
1 changed files with 4 additions and 0 deletions
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Documentation/devicetree/bindings/soc/rockchip/grf.txt
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@ -8,6 +8,8 @@ From RK3368 SoCs, the GRF is divided into two sections,
- SGRF, used for general secure system,
- PMUGRF, used for always on system
On RK3328 SoCs, the GRF adds a section for USB2PHYGRF,
Required Properties:
- compatible: GRF should be one of the following:
@ -23,6 +25,8 @@ Required Properties:
- "rockchip,rk3399-pmugrf", "syscon": for rk3399
- compatible: SGRF should be one of the following
- "rockchip,rk3288-sgrf", "syscon": for rk3288
- compatible: USB2PHYGRF should be one of the followings
- "rockchip,rk3328-usb2phy-grf", "syscon": for rk3328
- reg: physical base address of the controller and length of memory mapped
region.