On Thu, Mar 02, 2017 at 03:49:04PM +0800, Meng Dongyang wrote:
> Due to the u2phy registers are separated from general grf, we need to
> add u2phy grf node and place u2phy node in it. So this patch add u2phy
> grf node.
Similar comment on the subject.
>
> Changes in v2:
> - add u2phy grf specification
>
> Signed-off-by: Meng Dongyang <daniel.meng@xxxxxxxxxxxxxx>
> ---
> Documentation/devicetree/bindings/soc/rockchip/grf.txt | 15 +++++++++++++++
> 1 file changed, 15 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/soc/rockchip/grf.txt b/Documentation/devicetree/bindings/soc/rockchip/grf.txt
> index 013e71a..6ac23f9 100644
> --- a/Documentation/devicetree/bindings/soc/rockchip/grf.txt
> +++ b/Documentation/devicetree/bindings/soc/rockchip/grf.txt
> @@ -7,6 +7,9 @@ From RK3368 SoCs, the GRF is divided into two sections,
> - GRF, used for general non-secure system,
> - PMUGRF, used for always on system
>
> +On RK3328 SoCs, the GRF is divided into three sections,
> +except GRF and PMUGRF, add a section for USB2PHYGRF,
> +
> Required Properties:
>
> - compatible: GRF should be one of the followings
> @@ -19,6 +22,8 @@ Required Properties:
> - compatible: PMUGRF should be one of the followings
> - "rockchip,rk3368-pmugrf", "syscon": for rk3368
> - "rockchip,rk3399-pmugrf", "syscon": for rk3399
> +- compatible: USB2GRF 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.
>
> @@ -33,3 +38,13 @@ Example: GRF and PMUGRF of RK3399 SoCs
> compatible = "rockchip,rk3399-grf", "syscon";
> reg = <0x0 0xff770000 0x0 0x10000>;
> };
> +
> +Example: USB2GRF of RK3328 SoCs
> +
> + usb2phy_grf: syscon@ff450000 {
> + compatible = "rockchip,rk3328-usb2phy-grf", "syscon",
> + "simple-mfd";
simple-mfd is not documented. Do you have child nodes?
What makes this a syscon? It has non-PHY registers?
> + reg = <0x0 0xff450000 0x0 0x10000>;
> + #address-cells = <1>;
> + #size-cells = <1>;
> + };
> --
> 1.9.1
>
>
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