target/linux/pistachio/patches-4.9/002-MIPS-DTS-img-add-device-tree-for-Marduk-board.patch

   1 From a189771546b304250cf18b26748edfefb857adbf Mon Sep 17 00:00:00 2001
   2 From: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
   3 Date: Fri, 14 Oct 2016 11:25:55 +0530
   4 Subject: MIPS: DTS: img: add device tree for Marduk board
   5
   6 Add support for Imagination Technologies' Marduk board which is based
   7 on Pistachio SoC. It is also known as Creator Ci40. Marduk is legacy
   8 name and will be there for decades.
   9
  10 Documentation for this board can be found on
  11 https://docs.creatordev.io/ci40/
  12
  13 This patch adds initial support for board with following peripherals:
  14
  15 * PWM based heartbeat LED
  16 * GPIO based buttons
  17 * SPI NOR flash on SPI1
  18 * UART0 and UART1
  19 * SD card
  20 * Ethernet
  21 * USB
  22 * PWM
  23 * ADC
  24 * I2C
  25
  26 (apply from https://patchwork.linux-mips.org/project/linux-mips/list/?submitter=7165)
  27
  28 Signed-off-by: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
  29 Acked-by: Rob Herring <robh@kernel.org>
  30 Acked-by: James Hartley <james.hartley@imgtec.com>
  31 ---
  32  .../bindings/mips/img/pistachio-marduk.txt         |  10 ++
  33  arch/mips/boot/dts/img/Makefile                    |   9 ++
  34  arch/mips/boot/dts/img/pistachio_marduk.dts        | 163 +++++++++++++++++++++
  35  3 files changed, 182 insertions(+)
  36  create mode 100644 Documentation/devicetree/bindings/mips/img/pistachio-marduk.txt
  37  create mode 100644 arch/mips/boot/dts/img/Makefile
  38  create mode 100644 arch/mips/boot/dts/img/pistachio_marduk.dts
  39
  40 --- /dev/null
  41 +++ b/Documentation/devicetree/bindings/mips/img/pistachio-marduk.txt
  42 @@ -0,0 +1,10 @@
  43 +Imagination Technologies' Pistachio SoC based Marduk Board
  44 +==========================================================
  45 +
  46 +Compatible string must be "img,pistachio-marduk", "img,pistachio"
  47 +
  48 +Hardware and other related documentation is available at
  49 +https://docs.creatordev.io/ci40/
  50 +
  51 +It is also known as Creator Ci40. Marduk is legacy name and will
  52 +be there for decades.
  53 --- /dev/null
  54 +++ b/arch/mips/boot/dts/img/Makefile
  55 @@ -0,0 +1,9 @@
  56 +dtb-$(CONFIG_MACH_PISTACHIO)   += pistachio_marduk.dtb
  57 +
  58 +obj-y                          += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
  59 +
  60 +# Force kbuild to make empty built-in.o if necessary
  61 +obj-                           += dummy.o
  62 +
  63 +always                         := $(dtb-y)
  64 +clean-files                    := *.dtb *.dtb.S
  65 --- /dev/null
  66 +++ b/arch/mips/boot/dts/img/pistachio_marduk.dts
  67 @@ -0,0 +1,163 @@
  68 +/*
  69 + * Copyright (C) 2015, 2016 Imagination Technologies Ltd.
  70 + *
  71 + * This program is free software; you can redistribute it and/or modify
  72 + * it under the terms of the GNU General Public License version 2 as
  73 + * published by the Free Software Foundation.
  74 + *
  75 + * IMG Marduk board is also known as Creator Ci40.
  76 + */
  77 +
  78 +/dts-v1/;
  79 +
  80 +#include "pistachio.dtsi"
  81 +
  82 +/ {
  83 +       model = "IMG Marduk (Creator Ci40)";
  84 +       compatible = "img,pistachio-marduk", "img,pistachio";
  85 +
  86 +       aliases {
  87 +               serial0 = &uart0;
  88 +               serial1 = &uart1;
  89 +               ethernet0 = &enet;
  90 +               spi0 = &spfi0;
  91 +               spi1 = &spfi1;
  92 +       };
  93 +
  94 +       chosen {
  95 +               bootargs = "root=/dev/sda1 rootwait ro lpj=723968";
  96 +               stdout-path = "serial1:115200";
  97 +       };
  98 +
  99 +       memory {
 100 +               device_type = "memory";
 101 +               reg =  <0x00000000 0x10000000>;
 102 +       };
 103 +
 104 +       reg_1v8: fixed-regulator {
 105 +               compatible = "regulator-fixed";
 106 +               regulator-name = "aux_adc_vref";
 107 +               regulator-min-microvolt = <1800000>;
 108 +               regulator-max-microvolt = <1800000>;
 109 +               regulator-boot-on;
 110 +       };
 111 +
 112 +       internal_dac_supply: internal-dac-supply {
 113 +               compatible = "regulator-fixed";
 114 +               regulator-name = "internal_dac_supply";
 115 +               regulator-min-microvolt = <1800000>;
 116 +               regulator-max-microvolt = <1800000>;
 117 +       };
 118 +
 119 +       leds {
 120 +               compatible = "pwm-leds";
 121 +               heartbeat {
 122 +                       label = "marduk:red:heartbeat";
 123 +                       pwms = <&pwm 3 300000>;
 124 +                       max-brightness = <255>;
 125 +                       linux,default-trigger = "heartbeat";
 126 +               };
 127 +       };
 128 +
 129 +       keys {
 130 +               compatible = "gpio-keys";
 131 +               button@1 {
 132 +                       label = "Button 1";
 133 +                       linux,code = <0x101>; /* BTN_1 */
 134 +                       gpios = <&gpio3 6 GPIO_ACTIVE_LOW>;
 135 +               };
 136 +               button@2 {
 137 +                       label = "Button 2";
 138 +                       linux,code = <0x102>; /* BTN_2 */
 139 +                       gpios = <&gpio2 14 GPIO_ACTIVE_LOW>;
 140 +               };
 141 +       };
 142 +};
 143 +
 144 +&internal_dac {
 145 +       VDD-supply = <&internal_dac_supply>;
 146 +};
 147 +
 148 +&spfi1 {
 149 +       status = "okay";
 150 +
 151 +       pinctrl-0 = <&spim1_pins>, <&spim1_quad_pins>, <&spim1_cs0_pin>,
 152 +                   <&spim1_cs1_pin>;
 153 +       pinctrl-names = "default";
 154 +       cs-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>, <&gpio0 1 GPIO_ACTIVE_HIGH>;
 155 +
 156 +       flash@0 {
 157 +               compatible = "spansion,s25fl016k", "jedec,spi-nor";
 158 +               reg = <0>;
 159 +               spi-max-frequency = <50000000>;
 160 +       };
 161 +};
 162 +
 163 +&uart0 {
 164 +       status = "okay";
 165 +       assigned-clock-rates = <114278400>, <1843200>;
 166 +};
 167 +
 168 +&uart1 {
 169 +       status = "okay";
 170 +};
 171 +
 172 +&usb {
 173 +       status = "okay";
 174 +};
 175 +
 176 +&enet {
 177 +       status = "okay";
 178 +};
 179 +
 180 +&pin_enet {
 181 +       drive-strength = <2>;
 182 +};
 183 +
 184 +&pin_enet_phy_clk {
 185 +       drive-strength = <2>;
 186 +};
 187 +
 188 +&sdhost {
 189 +       status = "okay";
 190 +       bus-width = <4>;
 191 +       disable-wp;
 192 +};
 193 +
 194 +&pin_sdhost_cmd {
 195 +       drive-strength = <2>;
 196 +};
 197 +
 198 +&pin_sdhost_data {
 199 +       drive-strength = <2>;
 200 +};
 201 +
 202 +&pwm {
 203 +       status = "okay";
 204 +
 205 +       pinctrl-0 = <&pwmpdm0_pin>, <&pwmpdm1_pin>, <&pwmpdm2_pin>,
 206 +                   <&pwmpdm3_pin>;
 207 +       pinctrl-names = "default";
 208 +};
 209 +
 210 +&adc {
 211 +       status = "okay";
 212 +       vref-supply = <&reg_1v8>;
 213 +       adc-reserved-channels = <0x10>;
 214 +};
 215 +
 216 +&i2c2 {
 217 +       status = "okay";
 218 +       clock-frequency = <400000>;
 219 +
 220 +       tpm@20 {
 221 +               compatible = "infineon,slb9645tt";
 222 +               reg = <0x20>;
 223 +       };
 224 +
 225 +};
 226 +
 227 +&i2c3 {
 228 +       status = "okay";
 229 +       clock-frequency = <400000>;
 230 +};