mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-06-09 23:36:03 +09:00
1d259e4d68
This converts LEGO MINDSTORMS EV3 to the driver model. MMC, SERIAL, SPI and SPI_FLASH are converted. The device tree contains only the minimal nodes required by U-Boot since the size of U-Boot is limited to 256K on this device. Signed-off-by: David Lechner <david@lechnology.com>
90 lines
1.7 KiB
Plaintext
90 lines
1.7 KiB
Plaintext
/*
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* Device tree for LEGO MINDSTORMS EV3
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*
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* Copyright (C) 2017 David Lechner <david@lechnology.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*
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* This is an absolute minimum device tree instead of using the one from Linux
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* because the bootloader on the EV3 is limited to 256k. This saves us >10k.
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*/
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/dts-v1/;
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/ {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "lego,ev3", "ti,da850";
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model = "LEGO MINDSTORMS EV3";
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aliases {
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serial1 = &serial1;
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spi0 = &spi0;
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};
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chosen {
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stdout-path = &serial1;
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};
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memory {
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device_type = "memory";
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reg = <0xc0000000 0x04000000>;
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};
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arm {
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#address-cells = <1>;
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#size-cells = <1>;
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ranges;
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intc: interrupt-controller@fffee000 {
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compatible = "ti,cp-intc";
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interrupt-controller;
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#interrupt-cells = <1>;
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ti,intc-size = <101>;
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reg = <0xfffee000 0x2000>;
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};
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};
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soc@1c00000 {
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compatible = "simple-bus";
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model = "da850";
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#address-cells = <1>;
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#size-cells = <1>;
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ranges = <0x0 0x01c00000 0x400000>;
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interrupt-parent = <&intc>;
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mmc0: mmc@40000 {
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compatible = "ti,da830-mmc";
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reg = <0x40000 0x1000>;
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cap-sd-highspeed;
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cap-mmc-highspeed;
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interrupts = <16>;
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max-frequency = <50000000>;
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bus-width = <4>;
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};
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spi0: spi@41000 {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "ti,da830-spi";
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reg = <0x41000 0x1000>;
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num-cs = <6>;
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ti,davinci-spi-intr-line = <1>;
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interrupts = <20>;
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flash@0 {
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compatible = "micron,n25q128a13", "jedec,spi-nor", "spi-flash";
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reg = <0>;
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spi-max-frequency = <50000000>;
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};
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};
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serial1: serial@10c000 {
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compatible = "ti,da830-uart", "ns16550a";
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reg = <0x10c000 0x100>;
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reg-io-width = <4>;
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reg-shift = <2>;
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interrupts = <53>;
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};
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};
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};
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