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/*
* Copyright 2017 NXP
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
/*
* NOTE:
* 1. The DTS file only support i.MX8MQ EVK RevB1/B2 board PCIe M.2 Murata
* 1CQ (Qca6174) WIFI & BT.
* EVK RevB1 rework:
* WIFI rework: fly line from R1436 (near to M.2) to R1459
* BT rework: ensure R1446,R1447,R1448,R1449 installed on board
* EVK RevB2 rework: no rework
*
* 2. If need to support i.MX8MQ EVK RevA0/A1 board PCIe M.2 Murata 1CQ
* (Qca6174) WIFI & BT, some board rework requirement:
* EVK RevA0 rework:
* WIFI rework: install R1436 for wlreg_on
* EVK RevA0 rework:
* WIFI rework: install R1436 for wlreg_on
* BT rework: fly line from M.2 pin54 to R1437
* Also, below DTS change requirement:
* / {
* regulators {
* epdev_on: fixedregulator@100 {
* compatible = "regulator-fixed";
* regulator-min-microvolt = <3300000>;
* regulator-max-microvolt = <3300000>;
* regulator-name = "epdev_on";
* gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>;
* enable-active-high;
* };
* };
* };
*
* &iomuxc {
* imx8mq-evk {
* pinctrl_epdev_on: epdevongrp {
* fsl,pins = <
* MX8MQ_IOMUXC_SD2_RESET_B_GPIO2_IO19 0x16
* >;
* };
* };
* };
*
* &pcie1{
* pinctrl-names = "default";
* pinctrl-0 = <&pinctrl_pcie1 &pinctrl_epdev_on>;
* epdev_on-supply = <&epdev_on>;
* };
*
* &usdhc2 {
* status = "disabled";
* };
*
*
* 3. When wifi driver switch to QCA CLD from ATH10K, there have two known issues:
* - QCA CLD driver only support ONE instance.
* - QCA CLD driver don't support PCIe MSI feature.
* So here it has to disable pcie0 port.
*/
#include "fsl-imx8mq-evk.dts"
/ {
modem_reset: modem-reset {
reset-gpios = <&gpio3 5 GPIO_ACTIVE_HIGH>;
};
};
&pcie0{
status = "disabled";
};
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