From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kishon Vijay Abraham I Subject: [RFC PATCH 38/40] arm64: dts: k3-am6: Add mux-controller dt node required for muxing SERDES Date: Fri, 21 Sep 2018 15:51:53 +0530 Message-ID: <20180921102155.22839-39-kishon@ti.com> References: <20180921102155.22839-1-kishon@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <20180921102155.22839-1-kishon@ti.com> Sender: linux-kernel-owner@vger.kernel.org To: Jingoo Han , Joao Pinto , Bjorn Helgaas , Rob Herring , Lorenzo Pieralisi , Murali Karicheri , Kishon Vijay Abraham I , Gustavo.Pimentel@synopsys.com Cc: Mark Rutland , Santosh Shilimkar , Tero Kristo , Nishanth Menon , linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org List-Id: devicetree@vger.kernel.org Add mux-controller dt node as a child node of scm_conf. This is required for muxing SERDES between USB, PCIe and ICSS2 SGMII. While at that also add "simple-mfd" compatible string to scm_conf dt node so that mux-controller device gets created. Signed-off-by: Kishon Vijay Abraham I --- arch/arm64/boot/dts/ti/k3-am65-main.dtsi | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi index 957c9125a453..4379c370f6f8 100644 --- a/arch/arm64/boot/dts/ti/k3-am65-main.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am65-main.dtsi @@ -7,8 +7,15 @@ &cbass_main { scm_conf: scm_conf@100000 { - compatible = "syscon"; + compatible = "syscon", "simple-mfd"; reg = <0 0x00100000 0 0x1c000>; + + serdes_mux: mux-controller { + compatible = "mmio-mux"; + #mux-control-cells = <1>; + mux-reg-masks = <0x4080 0x3>, /* SERDES0 lane select */ + <0x4090 0x3>; /* SERDES1 lane select */ + }; }; gic500: interrupt-controller@1800000 { -- 2.17.1