| * Rockchip General Register Files (GRF) |
| |
| The general register file will be used to do static set by software, which |
| is composed of many registers for system control. |
| |
| From RK3368 SoCs, the GRF is divided into two sections, |
| - GRF, used for general non-secure system, |
| - 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: |
| - "rockchip,rk3036-grf", "syscon": for rk3036 |
| - "rockchip,rk3066-grf", "syscon": for rk3066 |
| - "rockchip,rk3188-grf", "syscon": for rk3188 |
| - "rockchip,rk3228-grf", "syscon": for rk3228 |
| - "rockchip,rk3288-grf", "syscon": for rk3288 |
| - "rockchip,rk3328-grf", "syscon": for rk3328 |
| - "rockchip,rk3368-grf", "syscon": for rk3368 |
| - "rockchip,rk3399-grf", "syscon": for rk3399 |
| - "rockchip,rv1108-grf", "syscon": for rv1108 |
| - compatible: PMUGRF should be one of the following: |
| - "rockchip,rk3368-pmugrf", "syscon": for rk3368 |
| - "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 |
| - compatible: USBGRF should be one of the following |
| - "rockchip,rv1108-usbgrf", "syscon": for rv1108 |
| - reg: physical base address of the controller and length of memory mapped |
| region. |
| |
| Example: GRF and PMUGRF of RK3399 SoCs |
| |
| pmugrf: syscon@ff320000 { |
| compatible = "rockchip,rk3399-pmugrf", "syscon"; |
| reg = <0x0 0xff320000 0x0 0x1000>; |
| }; |
| |
| grf: syscon@ff770000 { |
| compatible = "rockchip,rk3399-grf", "syscon"; |
| reg = <0x0 0xff770000 0x0 0x10000>; |
| }; |
