The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)

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FreeBSD/Linux Kernel Cross Reference
sys/contrib/device-tree/src/arm/ste-hrefv60plus-tvk.dts

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    1 // SPDX-License-Identifier: GPL-2.0-or-later
    2 /*
    3  * Copyright 2012 ST-Ericsson AB
    4  *
    5  * Device Tree for the HREF version 60 or later with the TVK1281618 R2 UIB
    6  */
    7 
    8 /dts-v1/;
    9 #include "ste-db8500.dtsi"
   10 #include "ste-hrefv60plus.dtsi"
   11 #include "ste-href-tvk1281618-r2.dtsi"
   12 
   13 / {
   14         model = "ST-Ericsson HREF (v60+) and TVK1281618 R2 UIB";
   15         compatible = "st-ericsson,hrefv60+", "st-ericsson,u8500";
   16 
   17         /* ST6G3244ME level translator for 1.8/2.9 V */
   18         vmmci: regulator-gpio {
   19                 compatible = "regulator-gpio";
   20 
   21                 regulator-min-microvolt = <1800000>;
   22                 regulator-max-microvolt = <2900000>;
   23                 regulator-name = "mmci-reg";
   24                 regulator-type = "voltage";
   25 
   26                 startup-delay-us = <100>;
   27 
   28                 states = <1800000 0x1
   29                           2900000 0x0>;
   30 
   31                 gpios = <&gpio0 5 GPIO_ACTIVE_HIGH>;
   32                 enable-gpio = <&gpio5 9 GPIO_ACTIVE_HIGH>;
   33                 enable-active-high;
   34 
   35                 pinctrl-names = "default";
   36                 pinctrl-0 = <&vmmci_default_mode>;
   37         };
   38 };
   39 
   40 &pinctrl {
   41         vmmci {
   42                 vmmci_default_mode: vmmc_default {
   43                         /* VMMCI level-shifter enable */
   44                         default_hrefv60_cfg2 {
   45                                 pins = "GPIO169_D22";
   46                                 ste,config = <&gpio_out_hi>;
   47                         };
   48                         /* VMMCI level-shifter voltage select */
   49                         default_hrefv60_cfg3 {
   50                                 pins = "GPIO5_AG6";
   51                                 ste,config = <&gpio_out_hi>;
   52                         };
   53                 };
   54         };
   55 };

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