1// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
2/*
3 * Device Tree file for CRS326-24G-2S board
4 *
5 * Copyright (C) 2016 Allied Telesis Labs
6 * Copyright (C) 2020 Sartura Ltd.
7 *
8 * Based on armada-xp-db.dts
9 *
10 * Note: this Device Tree assumes that the bootloader has remapped the
11 * internal registers to 0xf1000000 (instead of the default
12 * 0xd0000000). The 0xf1000000 is the default used by the recent,
13 * DT-capable, U-Boot bootloaders provided by Marvell. Some earlier
14 * boards were delivered with an older version of the bootloader that
15 * left internal registers mapped at 0xd0000000. If you are in this
16 * situation, you should either update your bootloader (preferred
17 * solution) or the below Device Tree should be adjusted.
18 */
19
20/dts-v1/;
21#include "armada-xp-98dx3236.dtsi"
22
23/ {
24	model = "CRS326-24G-2S+";
25	compatible = "mikrotik,crs326-24g-2s", "marvell,armadaxp-98dx3236", "marvell,armada-370-xp";
26
27	chosen {
28		bootargs = "console=ttyS0,115200 earlyprintk";
29	};
30
31	memory {
32		device_type = "memory";
33		reg = <0 0x00000000 0 0x20000000>; /* 512 MB */
34	};
35};
36
37&L2 {
38	arm,parity-enable;
39	marvell,ecc-enable;
40};
41
42&devbus_bootcs {
43	status = "okay";
44
45	/* Device Bus parameters are required */
46
47	/* Read parameters */
48	devbus,bus-width    = <16>;
49	devbus,turn-off-ps  = <60000>;
50	devbus,badr-skew-ps = <0>;
51	devbus,acc-first-ps = <124000>;
52	devbus,acc-next-ps  = <248000>;
53	devbus,rd-setup-ps  = <0>;
54	devbus,rd-hold-ps   = <0>;
55
56	/* Write parameters */
57	devbus,sync-enable = <0>;
58	devbus,wr-high-ps  = <60000>;
59	devbus,wr-low-ps   = <60000>;
60	devbus,ale-wr-ps   = <60000>;
61};
62
63&uart0 {
64	status = "okay";
65};
66
67&uart1 {
68	status = "okay";
69};
70
71&i2c0 {
72	clock-frequency = <100000>;
73	status = "okay";
74};
75
76&usb0 {
77	status = "okay";
78};
79
80&spi0 {
81	status = "okay";
82
83	flash@0 {
84		#address-cells = <1>;
85		#size-cells = <1>;
86		compatible = "jedec,spi-nor";
87		reg = <0>; /* Chip select 0 */
88		spi-max-frequency = <108000000>;
89		m25p,fast-read;
90
91		partition@u-boot {
92			reg = <0x00000000 0x001f0000>;
93			label = "u-boot";
94		};
95		partition@u-boot-env {
96			reg = <0x001f0000 0x00010000>;
97			label = "u-boot-env";
98		};
99		partition@ubi1 {
100			reg = <0x00200000 0x00e00000>;
101			label = "ubi1";
102		};
103	};
104};
105