| David Lechner | 0380914 | 2019-05-28 20:56:42 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Device tree for LEGO MINDSTORMS EV3 |
| 3 | * |
| 4 | * Copyright (C) 2017 David Lechner <david@lechnology.com> |
| 5 | * |
| 6 | * SPDX-License-Identifier: GPL-2.0+ |
| 7 | * |
| 8 | * This is an absolute minimum device tree instead of using the one from Linux |
| 9 | * because the bootloader on the EV3 is limited to 256k. This saves us >10k. |
| 10 | */ |
| 11 | |
| 12 | /dts-v1/; |
| 13 | |
| 14 | / { |
| 15 | #address-cells = <1>; |
| 16 | #size-cells = <1>; |
| 17 | compatible = "lego,ev3", "ti,da850"; |
| 18 | model = "LEGO MINDSTORMS EV3"; |
| 19 | |
| 20 | aliases { |
| 21 | serial1 = &serial1; |
| 22 | spi0 = &spi0; |
| 23 | }; |
| 24 | |
| 25 | chosen { |
| 26 | stdout-path = &serial1; |
| 27 | }; |
| 28 | |
| 29 | memory { |
| 30 | device_type = "memory"; |
| 31 | reg = <0xc0000000 0x04000000>; |
| 32 | }; |
| 33 | |
| 34 | arm { |
| 35 | #address-cells = <1>; |
| 36 | #size-cells = <1>; |
| 37 | ranges; |
| 38 | intc: interrupt-controller@fffee000 { |
| 39 | compatible = "ti,cp-intc"; |
| 40 | interrupt-controller; |
| 41 | #interrupt-cells = <1>; |
| 42 | ti,intc-size = <101>; |
| 43 | reg = <0xfffee000 0x2000>; |
| 44 | }; |
| 45 | }; |
| 46 | |
| 47 | soc@1c00000 { |
| 48 | compatible = "simple-bus"; |
| 49 | model = "da850"; |
| 50 | #address-cells = <1>; |
| 51 | #size-cells = <1>; |
| 52 | ranges = <0x0 0x01c00000 0x400000>; |
| 53 | interrupt-parent = <&intc>; |
| 54 | |
| 55 | mmc0: mmc@40000 { |
| 56 | compatible = "ti,da830-mmc"; |
| 57 | reg = <0x40000 0x1000>; |
| 58 | cap-sd-highspeed; |
| 59 | cap-mmc-highspeed; |
| 60 | interrupts = <16>; |
| 61 | max-frequency = <50000000>; |
| 62 | bus-width = <4>; |
| 63 | }; |
| 64 | |
| 65 | spi0: spi@41000 { |
| 66 | #address-cells = <1>; |
| 67 | #size-cells = <0>; |
| 68 | compatible = "ti,da830-spi"; |
| 69 | reg = <0x41000 0x1000>; |
| 70 | num-cs = <6>; |
| 71 | ti,davinci-spi-intr-line = <1>; |
| 72 | interrupts = <20>; |
| 73 | |
| 74 | flash@0 { |
| 75 | compatible = "micron,n25q128a13", "jedec,spi-nor", "spi-flash"; |
| 76 | reg = <0>; |
| 77 | spi-max-frequency = <50000000>; |
| 78 | }; |
| 79 | }; |
| 80 | |
| 81 | serial1: serial@10c000 { |
| 82 | compatible = "ti,da830-uart", "ns16550a"; |
| 83 | reg = <0x10c000 0x100>; |
| 84 | reg-io-width = <4>; |
| 85 | reg-shift = <2>; |
| 86 | interrupts = <53>; |
| 87 | }; |
| 88 | }; |
| 89 | }; |