linux-kernel - [PATCH v3 2/8] arm64: dts: sparx5: Add SPI controller and SPI mux

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Date:   Thu, 2 Jul 2020 12:13:25 +0200
From:   Lars Povlsen <lars.povlsen@...rochip.com>
To:     Mark Brown <broonie@...nel.org>, Peter Rosin <peda@...ntia.se>
CC:     Lars Povlsen <lars.povlsen@...rochip.com>,
        Microchip Linux Driver Support <UNGLinuxDriver@...rochip.com>,
        <linux-spi@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        Serge Semin <fancer.lancer@...il.com>,
        Serge Semin <Sergey.Semin@...kalelectronics.ru>
Subject: [PATCH v3 2/8] arm64: dts: sparx5: Add SPI controller and SPI mux

This adds a SPI controller to the Microchip Sparx5 SoC, as well as the
SPI bus interface mux, which may optionally be needed for selecting
between alternate SPI bus segments (SPI/SPI2).

Signed-off-by: Lars Povlsen <lars.povlsen@...rochip.com>
---
 arch/arm64/boot/dts/microchip/sparx5.dtsi | 23 +++++++++++++++++++++++
 1 file changed, 23 insertions(+)

diff --git a/arch/arm64/boot/dts/microchip/sparx5.dtsi b/arch/arm64/boot/dts/microchip/sparx5.dtsi
index 7e811e24f0e99..2831935a489e1 100644
--- a/arch/arm64/boot/dts/microchip/sparx5.dtsi
+++ b/arch/arm64/boot/dts/microchip/sparx5.dtsi
@@ -14,6 +14,8 @@ / {
 	#size-cells = <1>;
 
 	aliases {
+		mux = &mux;
+		spi0 = &spi0;
 		serial0 = &uart0;
 		serial1 = &uart1;
 	};
@@ -155,6 +157,27 @@ uart1: serial@...102000 {
 			status = "disabled";
 		};
 
+		mux: mux-controller {
+			compatible = "microchip,sparx5-spi-mux";
+			#address-cells = <1>;
+			#size-cells = <0>;
+			#mux-control-cells = <0>;
+		};
+
+		spi0: spi@...104000 {
+			#address-cells = <1>;
+			#size-cells = <0>;
+			compatible = "microchip,sparx5-spi";
+			reg = <0x6 0x00104000 0x40>;
+			num-cs = <16>;
+			reg-io-width = <4>;
+			reg-shift = <2>;
+			clocks = <&ahb_clk>;
+			interrupts = <GIC_SPI 13 IRQ_TYPE_LEVEL_HIGH>;
+			mux-controls = <&mux>;
+			status = "disabled";
+		};
+
 		timer1: timer@...105000 {
 			compatible = "snps,dw-apb-timer";
 			reg = <0x6 0x00105000 0x1000>;
-- 
2.27.0