add Device Tree for BeagleBone Black describing the cape
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/*
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* Copyright (C) 2013 CircuitCo
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*
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* Virtual cape for UART2 on connector pins P9.21 P9.22
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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/dts-v1/;
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/plugin/;
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/ {
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compatible = "ti,beaglebone", "ti,beaglebone-black"; /* the cape is designed for these boards */
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/* identification */
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part-number = "cape-motoserial"; /* max 16 char. needs to match the filename */
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version = "00A0"; /* standard BB Black cape version number */
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/* state the resources this cape uses */
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exclusive-use =
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/* the pin header uses */
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"P9.24", /* uart1_txd */
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"P9.26", /* uart1_rxd */
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"P9.25", /* power1 */
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"P9.21", /* uart2_txd */
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"P9.22", /* uart2_rxd */
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"P9.23", /* power2 */
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"P9.13", /* uart4_txd */
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"P9.11", /* uart4_rxd */
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"P9.14", /* power4 */
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"P8.37", /* uart5_txd */
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"P8.38", /* uart5_rxd */
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"P8.39", /* power5 */
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/* the hardware ip uses */
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"uart1",
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"gpio3_21",
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"uart2",
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"gpio1_17",
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"uart4",
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"gpio1_18",
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"uart5",
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"gpio2_12";
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fragment@0 {
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target = <&am33xx_pinmux>;
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__overlay__ {
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bb_cape_motoserial_uart1: pinmux_cape_motoserial_uart1 {
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pinctrl-single,pins = <
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0x180 0x20 /* uart1_rxd | MODE0 */
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0x184 0x00 /* uart1_txd | MODE0 */
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>;
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};
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bb_cape_motoserial_uart2: pinmux_cape_motoserial_uart2 {
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pinctrl-single,pins = <
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0x150 0x21 /* uart2_rxd | MODE1 */
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0x154 0x01 /* uart2_txd | MODE1 */
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>;
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};
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bb_cape_motoserial_uart4: pinmux_cape_motoserial_uart4 {
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pinctrl-single,pins = <
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0x070 0x26 /* uart4_rxd_mux2 | MODE6 */
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0x074 0x06 /* uart4_txd_mux2 | MODE6 */
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>;
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};
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bb_cape_motoserial_uart5: pinmux_cape_motoserial_uart5 {
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pinctrl-single,pins = <
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0x0c4 0x24 /* uart5_rxd | MODE4 */
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0x0c0 0x04 /* uart5_txd | MODE4 */
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>;
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};
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bb_cape_motoserial_power: pinmux_cape_motoserial_power {
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pinctrl-single,pins = <
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0x1ac 0x07 /* P9_25 gpio3_21 117, OUTPUT MODE7, POWER1 */
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0x044 0x07 /* P9_23 gpio1_17 49, OUTPUT MODE7, POWER2 */
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0x048 0x07 /* P9_14 gpio1_18 50, OUTPUT MODE7, POWER4 */
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0x0b8 0x07 /* P8_39 gpio2_12 76, OUTPUT MODE7, POWER5 */
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>;
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};
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};
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};
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fragment@1 {
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target = <&uart2>; /* really uart1 */
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__overlay__ {
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status = "okay";
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pinctrl-names = "default";
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pinctrl-0 = <&bb_cape_motoserial_uart1>;
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};
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};
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fragment@2 {
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target = <&uart3>; /* really uart2 */
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__overlay__ {
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status = "okay";
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pinctrl-names = "default";
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pinctrl-0 = <&bb_cape_motoserial_uart2>;
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};
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};
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fragment@3 {
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target = <&uart5>; /* really uart4 */
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__overlay__ {
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status = "okay";
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pinctrl-names = "default";
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pinctrl-0 = <&bb_cape_motoserial_uart4>;
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};
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};
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fragment@4 {
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target = <&uart6>; /* really uart5 */
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__overlay__ {
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status = "okay";
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pinctrl-names = "default";
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pinctrl-0 = <&bb_cape_motoserial_uart5>;
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};
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};
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fragment@6 {
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target = <&ocp>;
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__overlay__ {
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motoserial_power {
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compatible = "bone-pinmux-helper";
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status = "okay";
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pinctrl-names = "default";
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pinctrl-0 = <&bb_cape_motoserial_power>;
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};
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};
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};
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};
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