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 diff --git a/Documentation/devicetree/bindings/mips/img/pistachio-marduk.txt b/Documentation/devicetree/bindings/mips/img/pistachio-marduk.txt
  41 new file mode 100644
  42 index 0000000..2d5126d
  43 --- /dev/null
  44 +++ b/Documentation/devicetree/bindings/mips/img/pistachio-marduk.txt
  45 @@ -0,0 +1,10 @@
  46 +Imagination Technologies' Pistachio SoC based Marduk Board
  47 +==========================================================
  48 +
  49 +Compatible string must be "img,pistachio-marduk", "img,pistachio"
  50 +
  51 +Hardware and other related documentation is available at
  52 +https://docs.creatordev.io/ci40/
  53 +
  54 +It is also known as Creator Ci40. Marduk is legacy name and will
  55 +be there for decades.
  56 diff --git a/arch/mips/boot/dts/img/Makefile b/arch/mips/boot/dts/img/Makefile
  57 new file mode 100644
  58 index 0000000..69a65f0
  59 --- /dev/null
  60 +++ b/arch/mips/boot/dts/img/Makefile
  61 @@ -0,0 +1,9 @@
  62 +dtb-$(CONFIG_MACH_PISTACHIO)   += pistachio_marduk.dtb
  63 +
  64 +obj-y                          += $(patsubst %.dtb, %.dtb.o, $(dtb-y))
  65 +
  66 +# Force kbuild to make empty built-in.o if necessary
  67 +obj-                           += dummy.o
  68 +
  69 +always                         := $(dtb-y)
  70 +clean-files                    := *.dtb *.dtb.S
  71 diff --git a/arch/mips/boot/dts/img/pistachio_marduk.dts b/arch/mips/boot/dts/img/pistachio_marduk.dts
  72 new file mode 100644
  73 index 0000000..cf9cebd
  74 --- /dev/null
  75 +++ b/arch/mips/boot/dts/img/pistachio_marduk.dts
  76 @@ -0,0 +1,163 @@
  77 +/*
  78 + * Copyright (C) 2015, 2016 Imagination Technologies Ltd.
  79 + *
  80 + * This program is free software; you can redistribute it and/or modify
  81 + * it under the terms of the GNU General Public License version 2 as
  82 + * published by the Free Software Foundation.
  83 + *
  84 + * IMG Marduk board is also known as Creator Ci40.
  85 + */
  86 +
  87 +/dts-v1/;
  88 +
  89 +#include "pistachio.dtsi"
  90 +
  91 +/ {
  92 +       model = "IMG Marduk (Creator Ci40)";
  93 +       compatible = "img,pistachio-marduk", "img,pistachio";
  94 +
  95 +       aliases {
  96 +               serial0 = &uart0;
  97 +               serial1 = &uart1;
  98 +               ethernet0 = &enet;
  99 +               spi0 = &spfi0;
 100 +               spi1 = &spfi1;
 101 +       };
 102 +
 103 +       chosen {
 104 +               bootargs = "root=/dev/sda1 rootwait ro lpj=723968";
 105 +               stdout-path = "serial1:115200";
 106 +       };
 107 +
 108 +       memory {
 109 +               device_type = "memory";
 110 +               reg =  <0x00000000 0x10000000>;
 111 +       };
 112 +
 113 +       reg_1v8: fixed-regulator {
 114 +               compatible = "regulator-fixed";
 115 +               regulator-name = "aux_adc_vref";
 116 +               regulator-min-microvolt = <1800000>;
 117 +               regulator-max-microvolt = <1800000>;
 118 +               regulator-boot-on;
 119 +       };
 120 +
 121 +       internal_dac_supply: internal-dac-supply {
 122 +               compatible = "regulator-fixed";
 123 +               regulator-name = "internal_dac_supply";
 124 +               regulator-min-microvolt = <1800000>;
 125 +               regulator-max-microvolt = <1800000>;
 126 +       };
 127 +
 128 +       leds {
 129 +               compatible = "pwm-leds";
 130 +               heartbeat {
 131 +                       label = "marduk:red:heartbeat";
 132 +                       pwms = <&pwm 3 300000>;
 133 +                       max-brightness = <255>;
 134 +                       linux,default-trigger = "heartbeat";
 135 +               };
 136 +       };
 137 +
 138 +       keys {
 139 +               compatible = "gpio-keys";
 140 +               button@1 {
 141 +                       label = "Button 1";
 142 +                       linux,code = <0x101>; /* BTN_1 */
 143 +                       gpios = <&gpio3 6 GPIO_ACTIVE_LOW>;
 144 +               };
 145 +               button@2 {
 146 +                       label = "Button 2";
 147 +                       linux,code = <0x102>; /* BTN_2 */
 148 +                       gpios = <&gpio2 14 GPIO_ACTIVE_LOW>;
 149 +               };
 150 +       };
 151 +};
 152 +
 153 +&internal_dac {
 154 +       VDD-supply = <&internal_dac_supply>;
 155 +};
 156 +
 157 +&spfi1 {
 158 +       status = "okay";
 159 +
 160 +       pinctrl-0 = <&spim1_pins>, <&spim1_quad_pins>, <&spim1_cs0_pin>,
 161 +                   <&spim1_cs1_pin>;
 162 +       pinctrl-names = "default";
 163 +       cs-gpios = <&gpio0 0 GPIO_ACTIVE_HIGH>, <&gpio0 1 GPIO_ACTIVE_HIGH>;
 164 +
 165 +       flash@0 {
 166 +               compatible = "spansion,s25fl016k", "jedec,spi-nor";
 167 +               reg = <0>;
 168 +               spi-max-frequency = <50000000>;
 169 +       };
 170 +};
 171 +
 172 +&uart0 {
 173 +       status = "okay";
 174 +       assigned-clock-rates = <114278400>, <1843200>;
 175 +};
 176 +
 177 +&uart1 {
 178 +       status = "okay";
 179 +};
 180 +
 181 +&usb {
 182 +       status = "okay";
 183 +};
 184 +
 185 +&enet {
 186 +       status = "okay";
 187 +};
 188 +
 189 +&pin_enet {
 190 +       drive-strength = <2>;
 191 +};
 192 +
 193 +&pin_enet_phy_clk {
 194 +       drive-strength = <2>;
 195 +};
 196 +
 197 +&sdhost {
 198 +       status = "okay";
 199 +       bus-width = <4>;
 200 +       disable-wp;
 201 +};
 202 +
 203 +&pin_sdhost_cmd {
 204 +       drive-strength = <2>;
 205 +};
 206 +
 207 +&pin_sdhost_data {
 208 +       drive-strength = <2>;
 209 +};
 210 +
 211 +&pwm {
 212 +       status = "okay";
 213 +
 214 +       pinctrl-0 = <&pwmpdm0_pin>, <&pwmpdm1_pin>, <&pwmpdm2_pin>,
 215 +                   <&pwmpdm3_pin>;
 216 +       pinctrl-names = "default";
 217 +};
 218 +
 219 +&adc {
 220 +       status = "okay";
 221 +       vref-supply = <&reg_1v8>;
 222 +       adc-reserved-channels = <0x10>;
 223 +};
 224 +
 225 +&i2c2 {
 226 +       status = "okay";
 227 +       clock-frequency = <400000>;
 228 +
 229 +       tpm@20 {
 230 +               compatible = "infineon,slb9645tt";
 231 +               reg = <0x20>;
 232 +       };
 233 +
 234 +};
 235 +
 236 +&i2c3 {
 237 +       status = "okay";
 238 +       clock-frequency = <400000>;
 239 +};
 240 --
 241 2.7.4
 242