Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/Bindings/soc/rockchip/grf.txt
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1 * Rockchip General Register Files (GRF) 2 3 The general register file will be used to do static set by software, which 4 is composed of many registers for system control. 5 6 From RK3368 SoCs, the GRF is divided into two sections, 7 - GRF, used for general non-secure system, 8 - SGRF, used for general secure system, 9 - PMUGRF, used for always on system 10 11 On RK3328 SoCs, the GRF adds a section for USB2PHYGRF, 12 13 ON RK3308 SoC, the GRF is divided into four sections: 14 - GRF, used for general non-secure system, 15 - SGRF, used for general secure system, 16 - DETECTGRF, used for audio codec system, 17 - COREGRF, used for pvtm, 18 19 Required Properties: 20 21 - compatible: GRF should be one of the following: 22 - "rockchip,px30-grf", "syscon": for px30 23 - "rockchip,rk3036-grf", "syscon": for rk3036 24 - "rockchip,rk3066-grf", "syscon": for rk3066 25 - "rockchip,rk3188-grf", "syscon": for rk3188 26 - "rockchip,rk3228-grf", "syscon": for rk3228 27 - "rockchip,rk3288-grf", "syscon": for rk3288 28 - "rockchip,rk3308-grf", "syscon": for rk3308 29 - "rockchip,rk3328-grf", "syscon": for rk3328 30 - "rockchip,rk3368-grf", "syscon": for rk3368 31 - "rockchip,rk3399-grf", "syscon": for rk3399 32 - "rockchip,rv1108-grf", "syscon": for rv1108 33 - compatible: DETECTGRF should be one of the following: 34 - "rockchip,rk3308-detect-grf", "syscon": for rk3308 35 - compatilbe: COREGRF should be one of the following: 36 - "rockchip,rk3308-core-grf", "syscon": for rk3308 37 - compatible: PMUGRF should be one of the following: 38 - "rockchip,px30-pmugrf", "syscon": for px30 39 - "rockchip,rk3368-pmugrf", "syscon": for rk3368 40 - "rockchip,rk3399-pmugrf", "syscon": for rk3399 41 - compatible: SGRF should be one of the following: 42 - "rockchip,rk3288-sgrf", "syscon": for rk3288 43 - compatible: USB2PHYGRF should be one of the following: 44 - "rockchip,px30-usb2phy-grf", "syscon": for px30 45 - "rockchip,rk3328-usb2phy-grf", "syscon": for rk3328 46 - compatible: USBGRF should be one of the following: 47 - "rockchip,rv1108-usbgrf", "syscon": for rv1108 48 - reg: physical base address of the controller and length of memory mapped 49 region. 50 51 Example: GRF and PMUGRF of RK3399 SoCs 52 53 pmugrf: syscon@ff320000 { 54 compatible = "rockchip,rk3399-pmugrf", "syscon"; 55 reg = <0x0 0xff320000 0x0 0x1000>; 56 }; 57 58 grf: syscon@ff770000 { 59 compatible = "rockchip,rk3399-grf", "syscon"; 60 reg = <0x0 0xff770000 0x0 0x10000>; 61 };
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