1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
3 * Device Tree file for CRS328-4C-20S-4S+ board
5 * Copyright (C) 2016 Allied Telesis Labs
6 * Copyright (C) 2020 Sartura Ltd.
8 * Based on armada-xp-db.dts
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.
21 #include "armada-xp-98dx3236.dtsi"
22 #include "armada-xp-crs328-4c-20s-4s-u-boot.dtsi"
25 model = "CRS328-4C-20S-4S+";
26 compatible = "marvell,armadaxp-98dx3236", "marvell,armadaxp-mv78260", "marvell,armadaxp", "marvell,armada-370-xp";
29 stdout-path = "serial0:115200n8";
30 bootargs = "console=ttyS0,115200 earlyprintk";
38 device_type = "memory";
39 reg = <0 0x00000000 0 0x20000000>; /* 512 MB */
51 /* Device Bus parameters are required */
54 devbus,bus-width = <16>;
55 devbus,turn-off-ps = <60000>;
56 devbus,badr-skew-ps = <0>;
57 devbus,acc-first-ps = <124000>;
58 devbus,acc-next-ps = <248000>;
59 devbus,rd-setup-ps = <0>;
60 devbus,rd-hold-ps = <0>;
62 /* Write parameters */
63 devbus,sync-enable = <0>;
64 devbus,wr-high-ps = <60000>;
65 devbus,wr-low-ps = <60000>;
66 devbus,ale-wr-ps = <60000>;
78 clock-frequency = <100000>;
92 compatible = "spi-flash", "jedec,spi-nor";
93 reg = <0>; /* Chip select 0 */
94 spi-max-frequency = <108000000>;
98 reg = <0x00000000 0x001f0000>;
101 partition@u-boot-env {
102 reg = <0x001f0000 0x00010000>;
103 label = "u-boot-env";
106 reg = <0x00200000 0x00e00000>;