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// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
/*
* Device Tree file for DB-DXBC2 board
*
* Copyright (C) 2016 Allied Telesis Labs
*
* Based on armada-xp-db.dts
*
* Note: this Device Tree assumes that the bootloader has remapped the
* internal registers to 0xf1000000 (instead of the default
* 0xd0000000). The 0xf1000000 is the default used by the recent,
* DT-capable, U-Boot bootloaders provided by Marvell. Some earlier
* boards were delivered with an older version of the bootloader that
* left internal registers mapped at 0xd0000000. If you are in this
* situation, you should either update your bootloader (preferred
* solution) or the below Device Tree should be adjusted.
*/
/dts-v1/;
#include "armada-xp-98dx4251.dtsi"
/ {
model = "Marvell Bobcat2 Evaluation Board";
compatible = "marvell,db-dxbc2", "marvell,armadaxp-98dx4251", "marvell,armada-370-xp";
chosen {
bootargs = "console=ttyS0,115200 earlyprintk";
};
memory {
device_type = "memory";
reg = <0 0x00000000 0 0x20000000>; /* 512 MB */
};
};
&devbus_bootcs {
status = "okay";
/* Device Bus parameters are required */
/* Read parameters */
devbus,bus-width = <16>;
devbus,turn-off-ps = <60000>;
devbus,badr-skew-ps = <0>;
devbus,acc-first-ps = <124000>;
devbus,acc-next-ps = <248000>;
devbus,rd-setup-ps = <0>;
devbus,rd-hold-ps = <0>;
/* Write parameters */
devbus,sync-enable = <0>;
devbus,wr-high-ps = <60000>;
devbus,wr-low-ps = <60000>;
devbus,ale-wr-ps = <60000>;
};
&i2c0 {
clock-frequency = <100000>;
status = "okay";
};
&uart0 {
status = "okay";
};
&uart1 {
status = "okay";
};
&nand {
status = "okay";
label = "pxa3xx_nand-0";
num-cs = <1>;
marvell,nand-keep-config;
nand-on-flash-bbt;
nand-ecc-strength = <4>;
nand-ecc-step-size = <512>;
};
&sdio {
pinctrl-0 = <&sdio_pins>;
pinctrl-names = "default";
status = "okay";
/* No CD or WP GPIOs */
broken-cd;
};
&spi0 {
status = "okay";
spi-flash@0 {
#address-cells = <1>;
#size-cells = <1>;
compatible = "m25p64";
reg = <0>; /* Chip select 0 */
spi-max-frequency = <20000000>;
m25p,fast-read;
partition@u-boot {
reg = <0x00000000 0x00100000>;
label = "u-boot";
};
partition@u-boot-env {
reg = <0x00100000 0x00040000>;
label = "u-boot-env";
};
partition@unused {
reg = <0x00140000 0x00ec0000>;
label = "unused";
};
};
};
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