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10e8d4f6dd
Allow a minimal setup of the r8a7779 SoC using a flattened device tree.
In particular, configure the i2c and ethernet controllers using a
flattened device tree.
SCI serial controller and TMU clock source, whose drivers do not yet
support configuration using a flattened device tree, are still configured
using C code in order to allow booting of a board with this SoC.
The ethernet controller also requires a regulator which is a board property.
A sample snippet DT for the marzen board is as follows:
/dts-v1/;
/include/ "r8a7779.dtsi"
/ {
fixedregulator3v3: fixedregulator@0 {
compatible = "regulator-fixed";
regulator-name = "fixed-3.3V";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
regulator-always-on;
};
};
&lan0 {
vddvario-supply = <&fixedregulator3v3>;
vdd33a-supply = <&fixedregulator3v3>;
};
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
96 lines
2.0 KiB
Plaintext
96 lines
2.0 KiB
Plaintext
/*
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* Device Tree Source for Renesas r8a7740
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*
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* Copyright (C) 2013 Renesas Solutions Corp.
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* Copyright (C) 2013 Simon Horman
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*
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* This file is licensed under the terms of the GNU General Public License
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* version 2. This program is licensed "as is" without any warranty of any
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* kind, whether express or implied.
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*/
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/include/ "skeleton.dtsi"
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/ {
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compatible = "renesas,r8a7779";
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cpus {
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#address-cells = <1>;
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#size-cells = <0>;
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cpu@0 {
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device_type = "cpu";
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compatible = "arm,cortex-a9";
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reg = <0>;
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};
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cpu@1 {
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device_type = "cpu";
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compatible = "arm,cortex-a9";
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reg = <1>;
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};
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cpu@2 {
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device_type = "cpu";
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compatible = "arm,cortex-a9";
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reg = <2>;
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};
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cpu@3 {
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device_type = "cpu";
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compatible = "arm,cortex-a9";
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reg = <3>;
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};
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};
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gic: interrupt-controller@f0001000 {
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compatible = "arm,cortex-a9-gic";
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#interrupt-cells = <3>;
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interrupt-controller;
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reg = <0xf0001000 0x1000>,
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<0xf0000100 0x100>;
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};
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i2c0: i2c@0xffc70000 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "renesas,rmobile-iic";
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reg = <0xffc70000 0x1000>;
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interrupt-parent = <&gic>;
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interrupts = <0 79 0x4>;
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};
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i2c1: i2c@0xffc71000 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "renesas,rmobile-iic";
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reg = <0xffc71000 0x1000>;
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interrupt-parent = <&gic>;
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interrupts = <0 82 0x4>;
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};
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i2c2: i2c@0xffc72000 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "renesas,rmobile-iic";
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reg = <0xffc72000 0x1000>;
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interrupt-parent = <&gic>;
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interrupts = <0 80 0x4>;
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};
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i2c3: i2c@0xffc73000 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "renesas,rmobile-iic";
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reg = <0xffc73000 0x1000>;
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interrupt-parent = <&gic>;
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interrupts = <0 81 0x4>;
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};
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lan0: lan0@18000000 {
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compatible = "smsc,lan9220", "smsc,lan9115";
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reg = <0x18000000 0x100>;
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phy-mode = "mii";
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interrupt-parent = <&gic>;
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interrupts = <0 28 0x4>;
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reg-io-width = <4>;
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};
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};
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