From mboxrd@z Thu Jan 1 00:00:00 1970 From: "jianqun.xu" Subject: [PATCH v4 2/6] soc: rockchip: add bindings for Rockchip grf Date: Fri, 19 Feb 2016 09:56:14 +0800 Message-ID: <1455846978-4272-3-git-send-email-jay.xu@rock-chips.com> References: <1455846978-4272-1-git-send-email-jay.xu@rock-chips.com> Content-Type: text/plain; charset="utf-8" Return-path: In-Reply-To: <1455846978-4272-1-git-send-email-jay.xu@rock-chips.com> Sender: linux-kernel-owner@vger.kernel.org To: heiko@sntech.de, robh+dt@kernel.org, pawel.moll@arm.com, mark.rutland@arm.com, ijc+devicetree@hellion.org.uk, galak@codeaurora.org, jwerner@chromium.org, broonie@kernel.org, catalin.marinas@arm.com, will.deacon@arm.com, sboyd@codeaurora.org, linus.walleij@linaro.org, sjoerd.simons@collabora.co.uk Cc: huangtao@rock-chips.com, jay.xu@rock-chips.com, linux-rockchip@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org List-Id: devicetree@vger.kernel.org From: Jianqun Xu Add devicetree bindings for Rockchip grf which found on Rockchip SoCs. Signed-off-by: Jianqun Xu --- changes in v4: - new add .../devicetree/bindings/soc/rockchip/grf.txt | 35 ++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 Documentation/devicetree/bindings/soc/rockchip/grf.txt diff --git a/Documentation/devicetree/bindings/soc/rockchip/grf.txt b/Documentation/devicetree/bindings/soc/rockchip/grf.txt new file mode 100644 index 0000000..7fb0410 --- /dev/null +++ b/Documentation/devicetree/bindings/soc/rockchip/grf.txt @@ -0,0 +1,35 @@ +* 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, +- PMUGRF, used for always on sysyem + +Required Properties: + +- compatible: GRF should be one of the followings + - "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,rk3368-grf", "syscon": for rk3368 + - "rockchip,rk3399-grf", "syscon": for rk3399 +- compatible: PMUGRF should be one of the followings + - "rockchip,rk3368-pmugrf", "syscon": for rk3368 + - "rockchip,rk3399-pmugrf", "syscon": for rk3399 +- 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>; + }; -- 1.9.1